CN104596021A - Electric automobile and air conditioner control system and control method thereof - Google Patents
Electric automobile and air conditioner control system and control method thereof Download PDFInfo
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- CN104596021A CN104596021A CN201310533646.1A CN201310533646A CN104596021A CN 104596021 A CN104596021 A CN 104596021A CN 201310533646 A CN201310533646 A CN 201310533646A CN 104596021 A CN104596021 A CN 104596021A
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- heater
- electric automobile
- refrigerating plant
- managing device
- air conditioning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/037—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for occupant comfort, e.g. for automatic adjustment of appliances according to personal settings, e.g. seats, mirrors, steering wheel
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- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention provides an electric automobile and an air conditioner control system and control method of the electric automobile. The air conditioner control system comprises an air conditioner management device and a vehicle control unit, the air conditioner management device is connected with a refrigerating device and/or a heating device and used for judging whether the refrigerating device and/or the heating device meet/meets a starting conditioner or not, and when the refrigerating device and/or the heating device meet/meets the starting condition, a request signal for starting the refrigerating device and/or the heating device is sent out; the vehicle control unit is in communication with the air conditioner management device through a CAN bus and is connected with the air conditioner management device through a hard wire, the vehicle control unit judges whether the electric automobile meets the starting condition of the refrigerating device and/or the heating device or not after receiving the request signal, and the vehicle control unit sends out a signal allowing starting to the air conditioner management device when the starting condition is met. According to the air conditioner control system and control method of the electric automobile and the electric automobile, the vehicle control unit can coordinate with the state of the finished automobile to control the air conditioner system, good performance of a power battery can be protected, and driving performance of the electric automobile is not affected.
Description
Technical field
The present invention relates to technical field of vehicle, particularly a kind of air-conditioner control system of electric automobile and control method thereof, and there is the electric automobile of this air-conditioner control system.
Background technology
The air-conditioning system of conventional fuel oil automobile is controlled the opening and closing of refrigerating/heating function voluntarily by air conditioning system controller; different from conventional fuel oil automobile; the power source of power vehicle is electrokinetic cell; car load driveability must be paid the utmost attention to; control the discharge process of electrokinetic cell simultaneously; thus protection high-tension battery can not over-discharge, thus the air-conditioning system of electric automobile is controlled the startup of air-conditioning system by the state of the comprehensive car load of entire car controller.Communication is carried out by CAN between entire car controller and air conditioning system controller or compressor controller, air conditioning system controller or compressor controller send refrigerating/heating request to entire car controller, after the comprehensive whole vehicle state of entire car controller judges, whether feedback allows to open refrigerating/heating function.
The shortcoming that prior art exists is, communication is carried out by CAN between entire car controller and air conditioning system controller, if but CAN breaks down, then entire car controller just cannot control air-conditioning system, thus easily cause electrokinetic cell to be crossed to put, not only affect the performance of battery, also the driveability of electric automobile is had a huge impact.
Summary of the invention
Object of the present invention is intended to solve above-mentioned technical problem at least to a certain extent.
For this reason; one object of the present invention is the air-conditioner control system proposing a kind of electric automobile; the air-conditioner control system of this electric automobile; entire car controller can be coordinated whole vehicle state and control air-conditioning system; when CAN breaks down, can control air-conditioning system, prevent the mistake of electrokinetic cell from putting; protect the functional of electrokinetic cell, thus do not affect the driveability of power vehicle.In addition, after air-conditioning system starts, can its system mode of Real-Time Monitoring.
Another object of the present invention is to propose a kind of electric automobile with above-mentioned air-conditioner control system.
Another object of the present invention is the control method of the air-conditioner control system proposing a kind of electric automobile.
For achieving the above object, first party embodiment of the present invention proposes a kind of air-conditioner control system of electric automobile, and this air-conditioner control system comprises: refrigerating plant and/or heater; Air conditioning managing device, described air conditioning managing device is connected with described refrigerating plant and/or heater, for judging whether described refrigerating plant and/or heater meet entry condition, and send the request signal starting described refrigerating plant and/or heater when described refrigerating plant and/or heater meet described entry condition; And entire car controller, communicated by CAN between described entire car controller with described air conditioning managing device, and described entire car controller is connected with described air conditioning managing device by rigid line, described entire car controller judges after receiving described request signal whether described electric automobile meets the condition starting described refrigerating plant and/or heater, and sends permission enabling signal when described electric automobile meets the condition starting described refrigerating plant and/or heater to described air conditioning managing device.
The air-conditioner control system of the electric automobile of the embodiment of the present invention, air conditioning managing device is by judging whether refrigerating plant or heater meet entry condition and send request signal, and then after entire car controller receives request signal, judge to open refrigerating plant or heater according to whole vehicle state, and can be communicated by CAN between entire car controller with air conditioning managing device, also can be communicated by rigid line, can ensure that entire car controller is to refrigerating plant and/effective control of thermal, ensure the good of the driveability of electric automobile, the co-ordination of Full Vehicle System.
In addition, in some embodiments of the invention, described entire car controller is also for judging whether described electric automobile meets the condition stopping described refrigerating plant and/or heater, and when described electric automobile meets the condition stopping described refrigerating plant and/or heater, termination signal is sent to described air conditioning managing device by described CAN and described rigid line, when described air conditioning managing device receives described termination signal by described CAN or described rigid line, control described refrigerating plant or heater stop work.
Can be communicated by CAN between entire car controller with air conditioning managing device, also can be communicated by rigid line, when CAN breaks down, entire car controller can send stop signal to air conditioning managing device by rigid line, the effective control of entire car controller to air conditioning managing device can be ensured, improve the reliability of electric automobile.
Wherein, described electric automobile meets the condition stopping described refrigerating plant and/or heater and can comprise: described entire car controller detect described air-conditioner control system the lower signal of telecommunication, electrokinetic cell breaks down or the SOC of described electrokinetic cell is less than predetermined threshold value.
Particularly, in one embodiment of the invention, when described electric automobile meets the following conditions, described entire car controller sends described permission enabling signal: (1) described electric automobile has powered on; (2) described air-conditioner control system is without the lower signal of telecommunication; (3) the electrokinetic cell fault-free of described electric automobile and the SOC of described electrokinetic cell is more than or equal to predetermined threshold value.
In some embodiments of the invention, wherein, described refrigerating plant comprises: the compressor controller of compressor and the described compressor of control, and described compressor controller is connected with described compressor, and carries out CAN communication between described compressor controller and described air conditioning managing device; First temperature sensor of the temperature of evaporimeter and the described evaporimeter of detection, described first temperature sensor is connected with described air conditioning managing device; And the refrigeration switch to be connected with described air conditioning managing device.
In one embodiment of the invention, when described air conditioning managing device detect described refrigeration switch be triggered closed and judge that described refrigerating plant meets the following conditions time, send refrigeration request signal to described entire car controller: the refrigerant charge of (1) described refrigerating plant meets preset requirement; (2) temperature of described evaporimeter is in the first temperature range; (3) described refrigerating plant fault-free.
In one embodiment of the invention, when the conditions are satisfied, described entire car controller is sent by CAN and allows cooling activation signal to described air conditioning managing device, and described air conditioning managing device freezes to control described compressor to described compressor controller transmission enabling signal and PWM tach signal according to described permission cooling activation signal.
In one embodiment of the invention, described heater comprises: the heating controller of heater and the described heater of control, and described heating controller is connected with described heater, and carries out CAN communication between described heating controller and described air conditioning managing device; Add electrothermal relay, described in add electrothermal relay and be connected respectively with described entire car controller with described heating controller; Second temperature sensor, described second temperature sensor is connected with described air conditioning managing device, for detecting the temperature of fan outlet in described air-conditioner control system; And the heater switch to be connected with described air conditioning managing device.
Particularly, in one embodiment of the invention, when described air conditioning managing device detects that described heater switch closes and judges that described heater meets the following conditions, send heat request signal to described entire car controller: the temperature of (1) described fan outlet is in the second temperature range; (2) described heater fault-free.
In another embodiment of the present invention, when the conditions are satisfied, described entire car controller is sent by CAN and allows heating starting signal to described air conditioning managing device, and send the first heating approving signal to described in add electrothermal relay, described air conditioning managing device sends enabling signal according to described permission heating starting signal to described heating controller, described heating controller send the second heating approving signal to described in add electrothermal relay, after described heating relay closes, described heating controller controls described heater and heats.
For achieving the above object, a second aspect of the present invention embodiment proposes a kind of electric automobile, and this electric automobile comprises the air-conditioner control system of the electric automobile of above-mentioned first aspect embodiment.
According to the electric automobile of the embodiment of the present invention, by the air-conditioner control system of above-described embodiment, the effective control of entire car controller to the air-conditioning of electric automobile can be realized, avoid the mistake of the electrokinetic cell of electric automobile to put, ensure that the driveability of electric automobile is good.
For achieving the above object, a third aspect of the present invention embodiment proposes a kind of control method of electric automobile air conditioner control system, wherein, air-conditioner control system comprises refrigerating plant and/or heater, air conditioning managing device and entire car controller, this control method comprises the following steps: described air conditioning managing device judges whether described refrigerating plant and/or heater meet entry condition, and sends the request signal starting described refrigerating plant and/or heater when described refrigerating plant and/or heater meet described entry condition; After receiving described request signal, judge whether described electric automobile meets the condition starting described refrigerating plant and/or heater with described entire car controller, and send permission enabling signal when described electric automobile meets the condition starting described refrigerating plant and/or heater to described air conditioning managing device.
The control method of the air-conditioner control system of the electric automobile of the embodiment of the present invention, judge whether refrigerating plant or heater meet entry condition and go out request signal by air conditioning managing device, and then after entire car controller receives request signal, judge to open refrigerating plant or heater according to whole vehicle state, the driveability of electric automobile can be ensured, prevent from electrokinetic cell from crossing to put, ensure the co-ordination of Full Vehicle System.
In some embodiments of the invention, also comprise: described entire car controller judges whether described electric automobile meets the condition stopping described refrigerating plant and/or heater, and when described electric automobile meets the condition stopping described refrigerating plant and/or heater, termination signal is sent to described air conditioning managing device by described CAN and described rigid line, when described air conditioning managing device receives described termination signal by described CAN or described rigid line, control described refrigerating plant or heater stop work.
Can be communicated by CAN between entire car controller with air conditioning managing device, also can be communicated by rigid line, when CAN breaks down, entire car controller can send stop signal to air conditioning managing device by rigid line, the effective control of entire car controller to air conditioning managing device can be ensured, improve the reliability of electric automobile.
Wherein, described electric automobile meets the condition stopping described refrigerating plant and/or heater and comprises: described entire car controller detect described air-conditioner control system the lower signal of telecommunication, electrokinetic cell breaks down or the SOC of described electrokinetic cell is less than predetermined threshold value.
In some embodiments of the invention, when described electric automobile meets the following conditions, described entire car controller sends described permission enabling signal: (1) described electric automobile has powered on; (2) described air-conditioner control system is without the lower signal of telecommunication; (3) the electrokinetic cell fault-free of described electric automobile and the SOC of described electrokinetic cell is more than or equal to predetermined threshold value.
Particularly, when in one embodiment of the present of invention, when the refrigeration switch that described air conditioning managing device detects in described refrigerating plant be triggered closed and judge that described refrigerating plant meets the following conditions time, send refrigeration request signal to described entire car controller: the refrigerant charge of (1) described refrigerating plant meets preset requirement; (2) in described refrigerating plant the temperature of evaporimeter in the first temperature range; (3) described refrigerating plant fault-free.
In one embodiment of the invention, when meeting above-mentioned condition, described refrigerating plant also comprises compressor and controls the compressor controller of described compressor, wherein, when described entire car controller sends permission cooling activation signal to described air conditioning managing device by CAN, described air conditioning managing device freezes to control described compressor to described compressor controller transmission enabling signal and PWM tach signal according to described permission cooling activation signal.
In addition, in one embodiment of the invention, when the heater switch that described air conditioning managing device detects in described heater closes and judges that described heater meets the following conditions, send heat request signal to described entire car controller: in (1) described air-conditioner control system, the temperature of fan outlet is in the second temperature range; (2) described heater fault-free.
In one embodiment of the invention, described heater also comprises heater, controls the heating controller of described heater and add electrothermal relay, when meeting above-mentioned condition, described entire car controller is sent by CAN and allows heating starting signal to described air conditioning managing device, and send the first heating approving signal to described in add electrothermal relay; Described air conditioning managing device sends enabling signal according to described permission heating starting signal to described heating controller; Described heating controller send the second heating approving signal to described in add electrothermal relay, and described heating controller controls described heater and heats after described heating relay closes.
The aspect that the present invention adds and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein:
Fig. 1 is the schematic diagram of the air-conditioner control system of electric automobile according to the embodiment of the present invention;
Fig. 2 is the block diagram of the electric automobile according to the embodiment of the present invention;
Fig. 3 is the flow chart of the control method of the air-conditioner control system of electric automobile according to the embodiment of the present invention;
Fig. 4 is the flow chart of the control method of the air-conditioner control system of electric automobile according to a concrete example of the present invention; And
Fig. 5 is the flow chart of the control method of the air-conditioner control system of electric automobile according to another concrete example of the present invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
Disclosing hereafter provides many different embodiments or example is used for realizing different structure of the present invention.Of the present invention open in order to simplify, hereinafter the parts of specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the present invention.In addition, the present invention can in different example repeat reference numerals and/or letter.This repetition is to simplify and clearly object, itself does not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique that the invention provides and the example of material, but those of ordinary skill in the art can recognize the property of can be applicable to of other techniques and/or the use of other materials.In addition, fisrt feature described below second feature it " on " structure can comprise the embodiment that the first and second features are formed as directly contact, also can comprise other feature and be formed in embodiment between the first and second features, such first and second features may not be direct contacts.
In describing the invention, it should be noted that, unless otherwise prescribed and limit, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
Air-conditioner control system according to the electric automobile of the embodiment of the present invention and the electric automobile with this air-conditioner control system are described with reference to the accompanying drawings, and the control method of the air-conditioner control system of this electric automobile.
The basic ideas of the air-conditioner control system of the electric automobile of the embodiment of the present invention are: when air conditioning managing device sends the request signal starting air conditioner refrigerating/heating combined equipment, whether the condition adjudgement that entire car controller integrates car load allows to open refrigerating/heating function, and do not allow/allow enabling signal to air conditioning managing device according to judged result transmission, and can after refrigerating/heating device starts, the state of Real-Time Monitoring car load, in the such as electrokinetic cell fault that breaks down, and CAN is when breaking down, termination signal can be sent by rigid line to quit work to air conditioning managing device to make refrigeration/or heating combined equipment.
The air-conditioner control system of the electric automobile that embodiment according to a first aspect of the present invention proposes is described with reference to the accompanying drawings.
As shown in Figure 1, the air-conditioner control system of the electric automobile of the embodiment of the present invention comprises refrigerating plant 10 and/or heater 20, air conditioning managing device 30 and entire car controller 40.Wherein, air conditioning managing device 30 is connected with refrigerating plant 10 and/or heater 20, for judging whether refrigerating plant 10 and/or heater 20 meet entry condition, and send the request signal starting refrigerating plant 10 and/or heater 20 when refrigerating plant 10 and/or heater 20 meet entry condition.Communicated by CAN between entire car controller 40 with air conditioning managing device 30, and entire car controller 40 is connected with air conditioning managing device 30 by rigid line 1, entire car controller 40 can be communicated with air conditioning managing device 30 by rigid line 1, entire car controller 40 judges after receiving request signal whether electric automobile meets the condition starting refrigerating plant 10 and/or heater 20, and sends permission enabling signal when electric automobile meets the condition starting refrigerating plant 10 and/or heater 20 to air conditioning managing device 30.
In one embodiment of the invention, refrigerating plant 10 comprises compressor 101, compressor controller 102, evaporimeter 103, first temperature sensor 104 and refrigeration switch 105.Wherein, compressor controller 102 is for controlling compressor 101, and compressor controller 102 is connected with compressor 101, and carries out CAN communication between compressor controller 102 and air conditioning managing device 30; First temperature sensor 104 is for detecting the temperature of evaporimeter 103, and the first temperature sensor 104 is connected with air conditioning managing device 30, and refrigeration switch 105 is connected with air conditioning managing device 30.Particularly, as shown in Figure 1, when needs freeze, user triggers the blower switch 106 of electric automobile, and trigger refrigeration switch 105 as A/C switch, after air conditioning managing device 30 detects A/C switching signal, judge whether refrigerating plant 10 meets the primary condition of cooling activation, in one embodiment of the invention, when air conditioning managing device 30 detect refrigeration switch 107 be triggered closed and judge that refrigerating plant 10 meets the following conditions time, send refrigeration request signal to entire car controller 40: the refrigerant charge of (1) refrigerating plant 10 meets preset requirement; (2) temperature of evaporimeter 103 is in the first temperature range; (3) refrigerating plant 10 fault-free.
In one embodiment of the invention, when electric automobile meets the following conditions, entire car controller 30 sends permission enabling signal: (1) electric automobile has powered on; (2) air-conditioner control system is without the lower signal of telecommunication; (3) electrokinetic cell 50 fault-free of electric automobile and the SOC of electrokinetic cell 50 is more than or equal to predetermined threshold value.After entire car controller 40 receives refrigeration request signal, and when judging that electric automobile meets above-mentioned condition, entire car controller 40 is sent by CAN and allows cooling activation signal to air conditioning managing device 30, air conditioning managing device 30 sends enabling signal and PWM tach signal according to permission cooling activation signal to compressor controller 102, compressor controller 102 controls compressor 101 by compressor assembly 109 and freezes, and regulate pressure switch 107, control condenser fan and open 108, refrigerating function starts.
In one embodiment of the invention, heater 20 comprises heater 201, heating controller 202, adds electrothermal relay 203, second temperature sensor 204 and heater switch 205.Wherein, heating controller 202 is connected with heater 201, and carries out CAN communication between heating controller 203 and air conditioning managing device 30; Add electrothermal relay 203 to be connected respectively with entire car controller 40 with heating controller 202; Second temperature sensor 204 is connected with air conditioning managing device 30, for detecting the temperature of fan outlet in air-conditioner control system; Heater switch 205 is connected with air conditioning managing device 30.Particularly, as shown in Figure 1, when needs heat, user opens the blower switch 106 of electric automobile, trigger heater switch 205, after air conditioning managing device 30 detects heater switch signal, judge that can heater 20 meet the primary condition of heating starting, in one embodiment of the invention, when air conditioning managing device 30 detects that heater switch 205 closes and judges that heater 20 meets the following conditions, send heat request signal to entire car controller 40: the temperature of (1) fan outlet is in the second temperature range; (2) heater 20 fault-free.After entire car controller 40 receives heat request signal, and heater 20 meets entry condition, when entire car controller 40 judges that electric automobile meets above-mentioned permission entry condition simultaneously, entire car controller 40 is sent by CAN and allows heating starting signal to air conditioning managing device 30, and send the first heating approving signal to adding electrothermal relay 203, air conditioning managing device 30 sends enabling signal according to permission heating starting signal to heating controller 202, heating controller 202 sends the second heating approving signal to adding electrothermal relay 203, add electrothermal relay 203 closed after heating controller 202 control heater 201 heat.
After refrigerating plant 10 or heater 20 are started working, entire car controller 40 is also for judging whether electric automobile meets the condition stopping refrigerating plant 10 and/or heater 20, and when electric automobile meets the condition stopping refrigerating plant 10 and/or heater 20, termination signal is sent to air conditioning managing device 30 by CAN and rigid line 1, when air conditioning managing device 30 receives termination signal by CAN or rigid line 1, control refrigerating plant 10 or heater 20 quit work.Particularly, entire car controller 40 detects the SOC of the electrokinetic cell 50 of electric automobile in real time, whether the state of electrokinetic cell 50 and air-conditioner control system have the lower signal of telecommunication, when entire car controller 40 detects that electric automobile meets the condition stopping refrigerating plant 10 and/or heater 20, such as when entire car controller 40 detects the lower signal of telecommunication of air-conditioner control system, when electrokinetic cell 50 breaks down or the SOC of electrokinetic cell 50 is less than predetermined threshold value, entire car controller 40 sends termination signal by CAN or rigid line 1 to air conditioning managing device, air conditioning managing device 30 controls refrigerating plant 10 when receiving termination signal by CAN or rigid line 1 or heater 20 quits work.When the CAN fault of electric automobile, entire car controller 40 can send termination signal to air-conditioner controller 30 by rigid line 1, after air conditioning managing device 30 receives termination signal, termination signal is sent to compressor controller 102 or heating controller 202, compressor controller 102 or heating controller 202 control compressor 101 or heater 201 quits work, thus ensure the driveability of car load, and prevent the electrokinetic cell 50 of electric automobile from excessively putting.
In sum, the air-conditioner control system of the electric automobile of the embodiment of the present invention, air conditioning managing device is by judging whether refrigerating plant or heater meet entry condition and send request signal, and then after entire car controller receives request signal, judge to open refrigerating plant or heater according to whole vehicle state, and can be communicated by CAN between entire car controller with air conditioning managing device, also can be communicated by rigid line, can ensure that entire car controller is to refrigerating plant and/effective control of thermal, ensure the good of the driveability of electric automobile, the co-ordination of Full Vehicle System.And, after refrigerating plant or heater start, the state of entire car controller Real-Time Monitoring Full Vehicle System, and when Full Vehicle System meets the condition controlling refrigerating plant or heater stop, send stop signal to air conditioning managing device to make refrigerating plant or heater stop work, can prevent the mistake of electrokinetic cell from putting, ensure the driveability of electric automobile.In addition, when CAN breaks down, entire car controller can send stop signal to air conditioning managing device by rigid line, can ensure the effective control of entire car controller to air conditioning managing device, improves the reliability of electric automobile.
A kind of electric automobile that embodiment according to a second aspect of the present invention proposes is described with reference to the accompanying drawings.
As shown in Figure 2, the electric automobile 201 of the embodiment of the present invention comprises the air-conditioner control system 202 of the electric automobile of above-described embodiment.
The electric automobile of the embodiment of the present invention, by the air-conditioner control system of above-described embodiment, can realize the effective control of entire car controller to the air-conditioning of electric automobile, avoid the mistake of the electrokinetic cell of electric automobile to put, and ensures that the driveability of electric automobile is good.
The control method of the air-conditioner control system of a kind of electric automobile that embodiment according to a third aspect of the present invention proposes is described with reference to the accompanying drawings.Wherein, the air-conditioner control system of electric automobile can be the air-conditioner control system of first aspect embodiment proposition, such as, comprise refrigerating plant and/or heater, air conditioning managing device and entire car controller.
As shown in Figure 3, the control method of the air-conditioner control system of the electric automobile of the embodiment of the present invention comprises the following steps:
S1, air conditioning managing device judges whether refrigerating plant or heater meet entry condition, and sends the request signal starting refrigerating plant or heater when refrigerating plant or heater meet entry condition.
When needing the refrigeration of startup electric automobile or heating, user triggers corresponding gauge tap, after air-conditioner controller receives triggering signal, air conditioning managing device judges whether refrigerating plant or heater meet entry condition, and send when refrigerating plant or heater meet entry condition start refrigerating plant or heater request signal to entire car controller.
S2, entire car controller judges after receiving request signal whether electric automobile meets the condition starting refrigerating plant or heater, and sends permission enabling signal when electric automobile meets the condition starting refrigerating plant or heater to air conditioning managing device.
Entire car controller is after receiving request signal, the SOC of electrokinetic cell, the state etc. of electrokinetic cell is such as comprised according to whole vehicle state, judge whether electric automobile meets the condition starting refrigerating plant or heater, and when electric automobile meets the condition starting refrigerating plant or heater, send and allow enabling signal to air conditioning managing device.In one embodiment of the invention, when electric automobile meets the following conditions, entire car controller sends permission enabling signal: (1) described electric automobile has powered on; (2) described air-conditioner control system is without the lower signal of telecommunication; (3) the electrokinetic cell fault-free of described electric automobile and the SOC of described electrokinetic cell is more than or equal to predetermined threshold value.
Particularly, when needs freeze, user triggers the blower switch of electric automobile, and trigger refrigeration switch, after air conditioning managing device receives refrigeration triggering signal, judge whether refrigerating plant meets the condition of carrying out freezing, in one embodiment of the invention, when the refrigeration switch that air conditioning managing device detects in refrigerating plant be triggered closed and judge that refrigerating plant meets the following conditions time, send refrigeration request signal to entire car controller: the refrigerant charge of (1) refrigerating plant meets preset requirement; (2) in refrigerating plant the temperature of evaporimeter in the first temperature range; (3) refrigerating plant fault-free.
In one embodiment of the invention, refrigerating plant also comprises compressor and controls the compressor controller of compressor, wherein, when entire car controller receives refrigeration request signal, judge whether according to the whole vehicle state of electric automobile to meet the condition starting refrigerating plant, when electric automobile meets the condition of above-mentioned permission startup, send the enabling signal allowing to start refrigerating plant, when entire car controller sends permission cooling activation signal to air conditioning managing device by CAN, air conditioning managing device freezes to control compressor to compressor controller transmission enabling signal and PWM tach signal according to permission cooling activation signal.In one particular embodiment of the present invention, as shown in Figure 4, the start-up course of refrigerating plant comprises the following steps:
S401, starts blower switch, triggers A/C switch.
Namely the corresponding gauge tap of speech startup refrigerating plant sends switch triggering signal.
S402, air-conditioner controller judges whether refrigerating plant meets cooling activation condition.
Air-conditioner controller judges whether refrigerating plant meets entry condition, if refrigerating plant meets the condition of above-mentioned startup refrigerating function, then enters step S403, otherwise enter step S404 after receiving refrigeration switch triggering signal.
S403, air-conditioner controller sends refrigeration request signal to entire car controller by CAN.
And when entire car controller receives refrigeration request signal, enter step S405.
S404, quits a program.
S405, according to whole vehicle state, entire car controller judges whether electric automobile meets the condition starting refrigerating plant.
If electric automobile meets the condition starting refrigerating plant, then enter step S406, otherwise, enter step S404.
S406, entire car controller sends refrigeration by CAN and allows enabling signal to air-conditioner controller.
And after air-conditioner controller receives refrigeration permission enabling signal, enter step S407.
S407, air-conditioner controller sends enabling signal and PWM tach signal to compressor controller.
Compressor enters step S408 after receiving enabling signal and speed controling signal.
S408, compressor controller controls compressor operating, and refrigerating plant starts.
In another embodiment of the present invention, when needs heat, user triggers the blower switch of electric automobile, and triggering heats switch, after air conditioning managing device receives and heats triggering signal, judge whether heating combined equipment meets the condition starting heat-production functions, when the heater switch that air conditioning managing device detects in heater closes and judges that heater meets the following conditions, send heat request signal to entire car controller: in (1) described air-conditioner control system, the temperature of fan outlet is in the second temperature range; (2) described heater fault-free.
In one embodiment of the invention, heater also comprises heater, the heating controller of control heater and add electrothermal relay, wherein, when entire car controller receive heat request signal time, judge whether according to the whole vehicle state of electric automobile to meet the condition starting heating combined equipment, when electric automobile meets the condition of above-mentioned permission startup, send and allow heating starting signal, entire car controller is sent by CAN and allows heating starting signal to air conditioning managing device, and send the first heating approving signal to adding electrothermal relay, in addition, air conditioning managing device sends enabling signal according to permission heating starting signal to heating controller, heating controller sends the second heating approving signal to adding electrothermal relay, and after heating relay closes, heating controller control heater heats.In one particular embodiment of the present invention, as shown in Figure 5, the start-up course of heating combined equipment comprises the following steps:
S501, starts blower switch, triggers heater switch.
Namely the corresponding gauge tap starting heating combined equipment sends switch triggering signal.
S502, air-conditioner controller judges whether heating combined equipment meets and heats entry condition.
After air-conditioner controller receives switch triggering signal, judge whether heating combined equipment meets and heat entry condition, if heating combined equipment meets heat entry condition, then enter step S503, otherwise, enter step S504.
S503, air-conditioner controller is sent by CAN and heats start-up request signal to entire car controller.
And after entire car controller receives and heats start-up request signal, enter step S505.
S504, quits a program.
S505, according to whole vehicle state, entire car controller judges whether electric automobile meets the condition starting heating combined equipment.
If electric automobile meets the condition starting heating combined equipment, then enter step S506, otherwise enter step S504.
S506, entire car controller sends and allows heating starting signal to air-conditioner controller, and sends the first heating approving signal to adding electrothermal relay.
Air-conditioner controller enters step S507 after receiving and allowing heating starting signal.
S507, air-conditioner controller sends and allows heating starting signal to heating controller.
Heating controller enters step S508 after receiving and allowing heating starting signal.
S508, heating controller sends the second heating approving signal to adding electrothermal relay.
Add after electrothermal relay receives the second heating approving signal, closed, then the high-voltage suppling power connecing hot gas is connected.
S509, heating controller control heater runs, heating starting.
In addition, in an embodiment of the present invention, after refrigerating plant or heater are started working, entire car controller judges whether electric automobile meets the condition stopping refrigerating plant or heater, and when electric automobile meets the condition stopping refrigerating plant and/or heater, send termination signal by CAN and rigid line to air conditioning managing device, when air conditioning managing device receives termination signal by CAN or rigid line, control refrigerating plant or heater stop work.Particularly, entire car controller detects the SOC of the electrokinetic cell of electric automobile in real time, whether the state of electrokinetic cell and air-conditioner control system have the lower signal of telecommunication, when entire car controller detects that electric automobile meets the condition stopping refrigerating plant or heater, such as when entire car controller detects the lower signal of telecommunication of air-conditioner control system, when electrokinetic cell breaks down or the SOC of electrokinetic cell is less than predetermined threshold value, entire car controller sends termination signal by CAN and rigid line to air conditioning managing device, air conditioning managing device controls refrigerating plant and heater stop work when receiving termination signal by CAN or rigid line.Be understandable that, when the CAN fault of electric automobile, entire car controller can send termination signal to air-conditioner controller by rigid line, after air conditioning managing device receives termination signal, termination signal is sent to compressor controller or heating controller, compressor controller or heating controller control compressor or heater quits work, thus ensure the driveability of car load, and prevent from the electrokinetic cell of electric automobile from crossing putting.
In sum, the control method of the air-conditioner control system of the electric automobile of the embodiment of the present invention, judge whether refrigerating plant or heater meet entry condition and go out request signal by air conditioning managing device, and then after entire car controller receives request signal, judge to open refrigerating plant or heater according to whole vehicle state, the driveability of electric automobile can be ensured, ensure the co-ordination of Full Vehicle System.And, after refrigerating plant or heater start, the state of entire car controller Real-Time Monitoring Full Vehicle System, and when Full Vehicle System meets the condition controlling refrigerating plant or heater stop, send stop signal to air conditioning managing device to make refrigerating plant or heater stop work, can prevent the mistake of electrokinetic cell from putting, ensure the driveability of electric automobile.And can be communicated by CAN between entire car controller with air conditioning managing device, also can be communicated by rigid line, when CAN breaks down, entire car controller can send stop signal to air conditioning managing device by rigid line, the effective control of entire car controller to air conditioning managing device can be ensured, improve the reliability of electric automobile.
Describe and can be understood in flow chart or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.
In flow charts represent or in this logic otherwise described and/or step, such as, the sequencing list of the executable instruction for realizing logic function can be considered to, may be embodied in any computer-readable medium, for instruction execution system, device or equipment (as computer based system, comprise the system of processor or other can from instruction execution system, device or equipment instruction fetch and perform the system of instruction) use, or to use in conjunction with these instruction execution systems, device or equipment.With regard to this description, " computer-readable medium " can be anyly can to comprise, store, communicate, propagate or transmission procedure for instruction execution system, device or equipment or the device that uses in conjunction with these instruction execution systems, device or equipment.The example more specifically (non-exhaustive list) of computer-readable medium comprises following: the electrical connection section (electronic installation) with one or more wiring, portable computer diskette box (magnetic device), random-access memory (ram), read-only storage (ROM), erasablely edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk read-only storage (CDROM).In addition, computer-readable medium can be even paper or other suitable media that can print described program thereon, because can such as by carrying out optical scanner to paper or other media, then carry out editing, decipher or carry out process with other suitable methods if desired and electronically obtain described program, be then stored in computer storage.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logic function to data-signal, there is the special IC of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, also can be that the independent physics of unit exists, also can be integrated in a module by two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.If described integrated module using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.
The above-mentioned storage medium mentioned can be read-only storage, disk or CD etc.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalency thereof.
Claims (19)
1. an air-conditioner control system for electric automobile, is characterized in that, comprising:
Refrigerating plant and/or heater;
Air conditioning managing device, described air conditioning managing device is connected with described refrigerating plant and/or heater, for judging whether described refrigerating plant and/or heater meet entry condition, and send the request signal starting described refrigerating plant and/or heater when described refrigerating plant and/or heater meet described entry condition; With
Entire car controller, communicated by CAN between described entire car controller with described air conditioning managing device, and described entire car controller is connected with described air conditioning managing device by rigid line, described entire car controller judges after receiving described request signal whether described electric automobile meets the condition starting described refrigerating plant and/or heater, and sends permission enabling signal when described electric automobile meets the condition starting described refrigerating plant and/or heater to described air conditioning managing device.
2. the air-conditioner control system of electric automobile as claimed in claim 1, it is characterized in that, described entire car controller is also for judging whether described electric automobile meets the condition stopping described refrigerating plant and/or heater, and when described electric automobile meets the condition stopping described refrigerating plant and/or heater, termination signal is sent to described air conditioning managing device by described CAN and described rigid line, when described air conditioning managing device receives described termination signal by described CAN or described rigid line, control described refrigerating plant or heater stop work.
3. the air-conditioner control system of electric automobile as claimed in claim 2, it is characterized in that, described electric automobile meets the condition stopping described refrigerating plant and/or heater and comprises: described entire car controller detect described air-conditioner control system the lower signal of telecommunication, electrokinetic cell breaks down or the SOC of described electrokinetic cell is less than predetermined threshold value.
4. the air-conditioner control system of the electric automobile as described in claim 1-3 as described in any one, is characterized in that, when described electric automobile meets the following conditions, described entire car controller sends described permission enabling signal:
(1) described electric automobile has powered on;
(2) described air-conditioner control system is without the lower signal of telecommunication; With
(3) the electrokinetic cell fault-free of described electric automobile and the SOC of described electrokinetic cell is more than or equal to predetermined threshold value.
5. the air-conditioner control system of electric automobile as claimed in claim 1, it is characterized in that, described refrigerating plant comprises:
The compressor controller of compressor and the described compressor of control, described compressor controller is connected with described compressor, and carries out CAN communication between described compressor controller and described air conditioning managing device;
First temperature sensor of the temperature of evaporimeter and the described evaporimeter of detection, described first temperature sensor is connected with described air conditioning managing device; With
The refrigeration switch be connected with described air conditioning managing device.
6. the air-conditioner control system of electric automobile as claimed in claim 5, it is characterized in that, when described air conditioning managing device detect described refrigeration switch be triggered closed and judge that described refrigerating plant meets the following conditions time, send refrigeration request signal to described entire car controller:
(1) refrigerant charge of described refrigerating plant meets preset requirement;
(2) temperature of described evaporimeter is in the first temperature range; With
(3) described refrigerating plant fault-free.
7. the air-conditioner control system of electric automobile as claimed in claim 6, it is characterized in that, described entire car controller is sent by CAN and allows cooling activation signal to described air conditioning managing device, and described air conditioning managing device freezes to control described compressor to described compressor controller transmission enabling signal and PWM tach signal according to described permission cooling activation signal.
8. the air-conditioner control system of electric automobile as claimed in claim 1, it is characterized in that, described heater comprises:
The heating controller of heater and the described heater of control, described heating controller is connected with described heater, and carries out CAN communication between described heating controller and described air conditioning managing device;
Add electrothermal relay, described in add electrothermal relay and be connected respectively with described entire car controller with described heating controller;
Second temperature sensor, described second temperature sensor is connected with described air conditioning managing device, for detecting the temperature of fan outlet in described air-conditioner control system; With
The heater switch be connected with described air conditioning managing device.
9. the air-conditioner control system of electric automobile as claimed in claim 8, is characterized in that, when described air conditioning managing device detects that described heater switch closes and judges that described heater meets the following conditions, sends heat request signal to described entire car controller:
(1) temperature of described fan outlet is in the second temperature range; With
(2) described heater fault-free.
10. the air-conditioner control system of electric automobile as claimed in claim 9, it is characterized in that, described entire car controller is sent by CAN and allows heating starting signal to described air conditioning managing device, and send the first heating approving signal to described in add electrothermal relay, described air conditioning managing device sends enabling signal according to described permission heating starting signal to described heating controller, described heating controller send the second heating approving signal to described in add electrothermal relay, after described heating relay closes, described heating controller controls described heater and heats.
11. 1 kinds of electric automobiles, is characterized in that, comprise the air-conditioner control system of the electric automobile according to any one of claim 1-10.
The control method of the air-conditioner control system of 12. 1 kinds of electric automobiles, air-conditioner control system comprises refrigerating plant and/or heater, air conditioning managing device and entire car controller, and it is characterized in that, control method comprises the following steps:
Described air conditioning managing device judges whether described refrigerating plant or heater meet entry condition, and sends the request signal starting described refrigerating plant or heater when described refrigerating plant or heater meet described entry condition; With
Described entire car controller judges after receiving described request signal whether described electric automobile meets the condition starting described refrigerating plant or heater, and sends permission enabling signal when described electric automobile meets the condition starting described refrigerating plant or heater to described air conditioning managing device.
The control method of the air-conditioner control system of 13. electric automobiles as claimed in claim 12, it is characterized in that, also comprise: described entire car controller judges whether described electric automobile meets the condition stopping described refrigerating plant or heater, and when described electric automobile meets the condition stopping described refrigerating plant or heater, termination signal is sent to described air conditioning managing device by described CAN and described rigid line, when described air conditioning managing device receives described termination signal by described CAN or described rigid line, control described refrigerating plant or heater stop work.
The control method of the air-conditioner control system of 14. electric automobiles as claimed in claim 13, it is characterized in that, described electric automobile meets the condition stopping described refrigerating plant or heater and comprises: described entire car controller detect described air-conditioner control system the lower signal of telecommunication, electrokinetic cell breaks down or the SOC of described electrokinetic cell is less than predetermined threshold value.
The control method of the air-conditioner control system of 15. electric automobiles as described in any one of claim 12-14, it is characterized in that, when described electric automobile meets the following conditions, described entire car controller sends described permission enabling signal:
(1) described electric automobile has powered on;
(2) described air-conditioner control system is without the lower signal of telecommunication; With
(3) the electrokinetic cell fault-free of described electric automobile and the SOC of described electrokinetic cell is more than or equal to predetermined threshold value.
The control method of the air-conditioner control system of 16. electric automobiles as claimed in claim 15, it is characterized in that, when the refrigeration switch that described air conditioning managing device detects in described refrigerating plant be triggered closed and judge that described refrigerating plant meets the following conditions time, send refrigeration request signal to described entire car controller:
(1) refrigerant charge of described refrigerating plant meets preset requirement;
(2) in described refrigerating plant the temperature of evaporimeter in the first temperature range; With
(3) described refrigerating plant fault-free.
The control method of the air-conditioner control system of 17. electric automobiles as claimed in claim 16, it is characterized in that, described refrigerating plant also comprises compressor and controls the compressor controller of described compressor, wherein, when described entire car controller sends permission cooling activation signal to described air conditioning managing device by CAN, described air conditioning managing device freezes to control described compressor to described compressor controller transmission enabling signal and PWM tach signal according to described permission cooling activation signal.
The control method of the air-conditioner control system of 18. electric automobiles as claimed in claim 12, it is characterized in that, when the heater switch that described air conditioning managing device detects in described heater closes and judges that described heater meets the following conditions, send heat request signal to described entire car controller:
(1) in described air-conditioner control system the temperature of fan outlet in the second temperature range; With
(2) described heater fault-free.
The control method of the air-conditioner control system of 19. electric automobiles as claimed in claim 18, is characterized in that, described heater also comprises heater, controls the heating controller of described heater and add electrothermal relay, wherein,
Described entire car controller is sent by CAN and allows heating starting signal to described air conditioning managing device, and send the first heating approving signal to described in add electrothermal relay;
Described air conditioning managing device sends enabling signal according to described permission heating starting signal to described heating controller;
Described heating controller send the second heating approving signal to described in add electrothermal relay, and described heating controller controls described heater and heats after described heating relay closes.
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| CN201310533646.1A CN104596021A (en) | 2013-10-31 | 2013-10-31 | Electric automobile and air conditioner control system and control method thereof |
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| CN109795286A (en) * | 2018-12-15 | 2019-05-24 | 阿尔特汽车技术股份有限公司 | A kind of electric automobile air conditioner method for controlling heater based on two-way CAN bus |
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| CN113442818A (en) * | 2021-07-07 | 2021-09-28 | 山东元齐新动力科技有限公司 | Start-stop control method and system for cold chain system of new energy refrigeration vehicle |
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