CN105438165A - Starting control method and system of hybrid electric vehicle and hybrid electric vehicle - Google Patents
Starting control method and system of hybrid electric vehicle and hybrid electric vehicle Download PDFInfo
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- CN105438165A CN105438165A CN201510991884.6A CN201510991884A CN105438165A CN 105438165 A CN105438165 A CN 105438165A CN 201510991884 A CN201510991884 A CN 201510991884A CN 105438165 A CN105438165 A CN 105438165A
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000007858 starting material Substances 0.000 claims description 28
- 239000002826 coolant Substances 0.000 claims description 14
- 230000008569 process Effects 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 description 6
- 229910018095 Ni-MH Inorganic materials 0.000 description 2
- 229910018477 Ni—MH Inorganic materials 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0803—Circuits or control means specially adapted for starting of engines characterised by means for initiating engine start or stop
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
The invention discloses a starting control method and a starting control system of a hybrid electric vehicle and the hybrid electric vehicle, wherein the method comprises the following steps: receiving a starting instruction and entering a starting mode; in the starting mode, detecting the state of an engine, the state of a power battery and the state of a driving motor, and judging whether the driving motor can start the engine according to the state of the engine and the state of the driving motor; if the driving motor can start the engine, further determining preset starting time according to the state of the power battery, and starting the engine by using the driving motor; and starting the engine by using the starting motor if the engine is not successfully started within the preset starting time. According to the method provided by the embodiment of the invention, the starting speed of the engine can be accelerated, the noise and the emission in the starting process can be reduced, and the reliability and the safety of the engine starting can be improved.
Description
Technical field
The present invention relates to Development of HEV Technology field, particularly a kind of startup control method of hybrid vehicle, system and hybrid vehicle.
Background technology
Hybrid power refers to that automobile uses fuel oil to drive and driven by power two kinds of type of drive.Hybrid vehicle, owing to combining the advantage of fuel-engined vehicle and pure electric automobile, now progressively becomes the research object of Ge great car production enterprise.
Generally starter motor is installed in traditional fuel-engined vehicle, for dragging driving engine to realize the startup of driving engine.But the power of starter motor is lower, rotating speed is also lower, and therefore need the long period that driving engine can be made successfully to start, and the discharge of driving engine in start-up course is higher, noise is also larger.Also have starter motor in hybrid vehicle, the startup being realized hybrid electric vehicle engine by starter motor has above-mentioned shortcoming undoubtedly equally.
In the related, the drive motor in hybrid vehicle can be utilized to realize the startup of driving engine, overcome above-mentioned shortcoming to a certain extent.But in some conditions, such as, when temperature of powered cell sharply raises, if still continue through drive motor to realize the startup of driving engine, then probably start failure, but also may electrokinetic cell be damaged.Only causing the damage of electrokinetic cell to realize the function of start the engine, user can be made undoubtedly to be difficult to accept.
Summary of the invention
The present invention is intended to solve one of technical matters in correlation technique at least to a certain extent.For this reason, one object of the present invention is the startup control method proposing a kind of hybrid vehicle, can accelerate the toggle speed of driving engine, and the noise reduced in start-up course and discharge, reliability and the safety of engine starting can be improved simultaneously.
Second object of the present invention is the startup control system proposing a kind of hybrid vehicle.
3rd object of the present invention is to propose a kind of hybrid vehicle.
The startup control method of the hybrid vehicle of embodiment according to a first aspect of the present invention, comprises the following steps: receive enabled instruction, and enter start-up mode; Under described start-up mode, detect engine condition, electrokinetic cell state and drive motor state, and whether can start described driving engine according to described engine condition and drive motor condition adjudgement drive motor; If described drive motor can start described driving engine, then determine run up time of presetting according to described electrokinetic cell state further, and utilize described drive motor to start described driving engine; If the unsuccessful startup within described default run up time of described driving engine, then utilize starter motor to start described driving engine.
According to the startup control method of the hybrid vehicle of the embodiment of the present invention, can whether can start the engine according to engine condition and drive motor condition adjudgement drive motor, and run up time of presetting can be determined according to electrokinetic cell state, if unsuccessful startup within the run up time of presetting, then use starter motor start the engine instead.Thereby, it is possible to carry out start the engine by drive motor as much as possible, thus can startability be improved, namely accelerate the toggle speed of driving engine and the noise reduced in start-up course and discharge.Meanwhile, be combined starter motor start the engine in some conditions, the success ratio of startup can be improved, and the infringement that reduction brings electrokinetic cell and drive motor, thus improve reliability and the safety of engine starting.
The startup control system of the hybrid vehicle of embodiment, comprising: engine management system according to a second aspect of the present invention, and described engine management system is for detecting engine condition; Battery management system, described battery management system is for detecting electrokinetic cell state; Motor management systems, described motor management systems is for detecting drive motor state; Full-vehicle control unit, described full-vehicle control unit is for receiving enabled instruction, and enter start-up mode, under described start-up mode, whether described driving engine can be started according to described engine condition and drive motor condition adjudgement drive motor, when described drive motor can start described driving engine, the run up time of presetting is determined further according to described electrokinetic cell state, and control described drive motor and start described driving engine,, control starter motor and start described driving engine during unsuccessful startup at described driving engine within described default run up time.
According to the startup control system of the hybrid vehicle of the embodiment of the present invention, can whether can start the engine according to engine condition and drive motor condition adjudgement drive motor, and run up time of presetting can be determined according to electrokinetic cell state, if unsuccessful startup within the run up time of presetting, then use starter motor start the engine instead.Thereby, it is possible to carry out start the engine by drive motor as much as possible, thus can startability be improved, namely accelerate the toggle speed of driving engine and the noise reduced in start-up course and discharge.Meanwhile, be combined starter motor start the engine in some conditions, the success ratio of startup can be improved, and the infringement that reduction brings electrokinetic cell and drive motor, thus improve reliability and the safety of engine starting.
The hybrid vehicle of embodiment according to a third aspect of the present invention, comprises the startup control system of the hybrid vehicle of embodiment according to a second aspect of the present invention.
According to the hybrid vehicle of the embodiment of the present invention, can whether can start the engine according to engine condition and drive motor condition adjudgement drive motor, and run up time of presetting can be determined according to electrokinetic cell state, if unsuccessful startup within the run up time of presetting, then use starter motor start the engine instead.Thereby, it is possible to carry out start the engine by drive motor as much as possible, thus can startability be improved, namely accelerate the toggle speed of driving engine and the noise reduced in start-up course and discharge.Meanwhile, be combined starter motor start the engine in some conditions, the success ratio of startup can be improved, and the infringement that reduction brings electrokinetic cell and drive motor, thus improve reliability and the safety of engine starting.
Additional aspect of the present invention 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
Fig. 1 is the diagram of circuit of the startup control method of hybrid vehicle according to an embodiment of the invention;
Fig. 2 is the structured flowchart of the startup control system of hybrid vehicle according to an embodiment of the 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.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
The startup control method of the hybrid vehicle of the embodiment of the present invention, system and hybrid vehicle are described below in conjunction with accompanying drawing.
Fig. 1 is the diagram of circuit of the startup control method of hybrid vehicle according to an embodiment of the invention.
As shown in Figure 1, the startup control method of the hybrid vehicle of the embodiment of the present invention, comprises the following steps:
S101, receives enabled instruction, and enters start-up mode.
In an embodiment of the present invention, using the ON shelves signal of key as enabled instruction, when receiving the ON shelves signal of key, start-up mode can be entered.
Whether S102, in the startup mode, detects engine condition, electrokinetic cell state and drive motor state, and can start the engine according to engine condition and drive motor condition adjudgement drive motor.
In an embodiment of the present invention, engine condition can be detected by the engine management system in hybrid vehicle, electrokinetic cell state can be detected by battery management system, and drive motor state can be detected by motor management systems.In an embodiment of the present invention, reception can be carried out by full-vehicle control unit to engine condition, electrokinetic cell state and drive motor state gather and process.Wherein, full-vehicle control unit and engine management system, communicate by CAN (ControllerAreaNetwork, controller local area network) bus between battery management system and motor management systems.
In one embodiment of the invention, engine condition can comprise the temperature of engine coolant, and drive motor state can comprise the nominal torque of drive motor.Particularly, can according to the resisting moment of the temperature determination driving engine of engine coolant, if the nominal torque of drive motor is greater than the resisting moment of driving engine, then judge that drive motor can start the engine, if the nominal torque of drive motor is not more than the resisting moment of driving engine, then judge that drive motor can not start the engine.
S103, if drive motor can start the engine, then determines run up time of presetting according to electrokinetic cell state further, and utilizes drive motor start the engine.
In one embodiment of the invention, electrokinetic cell state can comprise the temperature of electrokinetic cell.Should be appreciated that the electrokinetic cells such as such as Ni-MH battery are generally comparatively responsive to temperature.Electrokinetic cell electric discharge process in, the temperature of electrokinetic cell can raise, and if the temperature of electrokinetic cell is too high, then can be damaged.Be understandable that, if when the non-start the engine of drive motor, the temperature of electrokinetic cell is very high, then its time that can be provided with drive motor start the engine electric energy will be shorter.Therefore, in an embodiment of the present invention, run up time of presetting can be determined according to the temperature of electrokinetic cell.
S104, if driving engine unsuccessful startup within the run up time of presetting, then utilizes starter motor start the engine.
If driving engine starts successfully within the run up time of presetting, then can make the idling mode that driving engine keeps stable.And if driving engine does not start successfully within the run up time of presetting, then should not continue to use drive motor to carry out start the engine, now, the starter motor that hybrid vehicle configures can be used instead and carry out start the engine.
According to the startup control method of the hybrid vehicle of the embodiment of the present invention, can whether can start the engine according to engine condition and drive motor condition adjudgement drive motor, and run up time of presetting can be determined according to electrokinetic cell state, if unsuccessful startup within the run up time of presetting, then use starter motor start the engine instead.Thereby, it is possible to carry out start the engine by drive motor as much as possible, thus can startability be improved, namely accelerate the toggle speed of driving engine and the noise reduced in start-up course and discharge.Meanwhile, be combined starter motor start the engine in some conditions, the success ratio of startup can be improved, and the infringement that reduction brings electrokinetic cell and drive motor, thus improve reliability and the safety of engine starting.
In addition, after entering start-up mode, if engine condition, electrokinetic cell state or drive motor state occur abnormal, then directly can exit start-up mode, stop start the engine.
In one embodiment of the invention, in the startup mode, if the temperature of engine coolant is lower than preset temperature value, then start-up mode is exited.When the temperature of engine coolant is lower than preset temperature value, no matter is utilize drive motor, still utilizes starter motor, be all difficult to successfully start the engine, therefore directly can stop start-up course.
In one embodiment of the invention, engine condition also can comprise engine speed, in the startup mode, if engine speed reduces, and lower than preset rotation speed value, then exits start-up mode.In the start-up course of driving engine, probably occur the situation that engine resistance torque is uprushed instantaneously, now engine speed probably drops to zero.The appearance of this situation is easy to cause driving engine to flood cylinder.Therefore, if detect, engine speed reduces, and lower than preset rotation speed value, then directly can stop start-up course.
In one embodiment of the invention, electrokinetic cell state also can comprise state-of-charge and discharge power, and in the startup mode, if state-of-charge is lower than default charged value, or discharge power is lower than predetermined power value, then exit start-up mode.When the state-of-charge of electrokinetic cell is lower, be difficult to, for drive motor provides enough electric energy to carry out start the engine, therefore directly to stop start-up course.When the discharge power of electrokinetic cell is lower, continues discharge electrode and electrokinetic cell may be caused to discharge excessively, expendable damage can be caused to electrokinetic cell, therefore also directly can stop start-up course.
In one embodiment of the invention, drive motor state also can comprise drive motor trouble free, in the startup mode, if drive motor has fault, then exits start-up mode.When starter motor breaks down, or cannot normal start the engine, or remain in operation and can cause further damage.Therefore, when drive motor has fault, directly start-up course can be stopped.
It should be noted that, the run up time of presetting mentioned by the above embodiment of the present invention, preset temperature value, preset rotation speed value, default charged value and predetermined power value, can set according to the specific performance of electrokinetic cell or other relevant devices, be defined as concrete numerical value in this inconvenience.
For realizing above-described embodiment, the present invention also proposes a kind of startup control system of hybrid vehicle.
Fig. 2 is the structured flowchart of the startup control system of hybrid vehicle according to an embodiment of the invention.
As shown in Figure 2, the startup control system of the hybrid vehicle of the embodiment of the present invention, comprising: engine management system 10, battery management system 20, motor management systems 30 and full-vehicle control unit 40.
Wherein, engine management system 10 is for detecting engine condition, and battery management system 20 is for detecting electrokinetic cell state, and motor management systems 30 is for detecting drive motor state.Full-vehicle control unit 40 is for receiving enabled instruction, and enter start-up mode, in the startup mode, whether can start the engine according to engine condition and drive motor condition adjudgement drive motor, drive motor can start the engine time, determine the run up time of presetting further according to electrokinetic cell state, and control drive motor start the engine, within the run up time of presetting, when unsuccessful startup, starter motor start the engine is controlled at driving engine.
In an embodiment of the present invention, full-vehicle control unit 40 using the ON shelves signal of key as enabled instruction, when receiving the ON shelves signal of key, can enter start-up mode.In an embodiment of the present invention, full-vehicle control unit 40 is with engine management system 10, communicate by CAN between battery management system 20 and motor management systems 30.
In one embodiment of the invention, engine condition can comprise the temperature of engine coolant, and drive motor state can comprise the nominal torque of drive motor.Particularly, full-vehicle control unit 40 can according to the resisting moment of the temperature determination driving engine of engine coolant, when the nominal torque of drive motor is greater than the resisting moment of driving engine, judge that drive motor can start the engine, and when the nominal torque of drive motor is not more than the resisting moment of driving engine, judge that drive motor can not start the engine.
In one embodiment of the invention, electrokinetic cell state can comprise the temperature of electrokinetic cell.Should be appreciated that the electrokinetic cells such as such as Ni-MH battery are generally comparatively responsive to temperature.Electrokinetic cell electric discharge process in, the temperature of electrokinetic cell can raise, and if the temperature of electrokinetic cell is too high, then can be damaged.Be understandable that, if when the non-start the engine of drive motor, the temperature of electrokinetic cell is very high, then its time that can be provided with drive motor start the engine electric energy will be shorter.Therefore, in an embodiment of the present invention, full-vehicle control unit 40 can determine run up time of presetting according to the temperature of electrokinetic cell.
If driving engine starts successfully within the run up time of presetting, then can make the idling mode that driving engine keeps stable.And if driving engine does not start successfully within the run up time of presetting, then should not continue to use drive motor to carry out start the engine, now, the starter motor that hybrid vehicle configures can be used instead and carry out start the engine.
According to the startup control system of the hybrid vehicle of the embodiment of the present invention, can whether can start the engine according to engine condition and drive motor condition adjudgement drive motor, and run up time of presetting can be determined according to electrokinetic cell state, if unsuccessful startup within the run up time of presetting, then use starter motor start the engine instead.Thereby, it is possible to carry out start the engine by drive motor as much as possible, thus can startability be improved, namely accelerate the toggle speed of driving engine and the noise reduced in start-up course and discharge.Meanwhile, be combined starter motor start the engine in some conditions, the success ratio of startup can be improved, and the infringement that reduction brings electrokinetic cell and drive motor, thus improve reliability and the safety of engine starting.
In addition, after entering start-up mode, if engine condition, electrokinetic cell state or drive motor state occur abnormal, then directly can exit start-up mode, stop start the engine.
In one embodiment of the invention, full-vehicle control unit 40 also when the temperature of engine coolant is lower than preset temperature value, can exit start-up mode.When the temperature of engine coolant is lower than preset temperature value, no matter is utilize drive motor, still utilizes starter motor, be all difficult to successfully start the engine, therefore directly can stop start-up course.
In one embodiment of the invention, engine condition also can comprise engine speed, and full-vehicle control unit 40 also can reduce at engine speed, and during lower than preset rotation speed value, exits start-up mode.In the start-up course of driving engine, probably occur the situation that engine resistance torque is uprushed instantaneously, now engine speed probably drops to zero.The appearance of this situation is easy to cause driving engine to flood cylinder.Therefore, if detect, engine speed reduces, and lower than preset rotation speed value, then directly can stop start-up course.
In one embodiment of the invention, electrokinetic cell state also can comprise state-of-charge and discharge power, and full-vehicle control unit 40 also can at state-of-charge lower than default charged value, or discharge power lower than predetermined power value time, exit start-up mode.When the state-of-charge of electrokinetic cell is lower, be difficult to, for drive motor provides enough electric energy to carry out start the engine, therefore directly to stop start-up course.When the discharge power of electrokinetic cell is lower, continues discharge electrode and electrokinetic cell may be caused to discharge excessively, expendable damage can be caused to electrokinetic cell, therefore also directly can stop start-up course.
In one embodiment of the invention, drive motor state also can comprise drive motor trouble free, and full-vehicle control unit 40 also when drive motor has fault, can exit start-up mode.When starter motor breaks down, or cannot normal start the engine, or remain in operation and can cause further damage.Therefore, when drive motor has fault, directly start-up course can be stopped.
It should be noted that, the run up time of presetting mentioned by the above embodiment of the present invention, preset temperature value, preset rotation speed value, default charged value and predetermined power value, can set according to the specific performance of electrokinetic cell or other relevant devices, be defined as concrete numerical value in this inconvenience.
Corresponding above-described embodiment, the present invention also proposes a kind of hybrid vehicle.
The hybrid vehicle of the embodiment of the present invention, comprises the startup control system of hybrid vehicle according to the above embodiment of the present invention.Its concrete embodiment can refer to above-described embodiment, for avoiding redundancy, does not repeat them here.
According to the hybrid vehicle of the embodiment of the present invention, can whether can start the engine according to engine condition and drive motor condition adjudgement drive motor, and run up time of presetting can be determined according to electrokinetic cell state, if unsuccessful startup within the run up time of presetting, then use starter motor start the engine instead.Thereby, it is possible to carry out start the engine by drive motor as much as possible, thus can startability be improved, namely accelerate the toggle speed of driving engine and the noise reduced in start-up course and discharge.Meanwhile, be combined starter motor start the engine in some conditions, the success ratio of startup can be improved, and the infringement that reduction brings electrokinetic cell and drive motor, thus improve reliability and the safety of engine starting.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " cw ", " conter clockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this specification sheets, 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, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification sheets or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (15)
1. a startup control method for hybrid vehicle, is characterized in that, comprise the following steps:
Receive enabled instruction, and enter start-up mode;
Under described start-up mode, detect engine condition, electrokinetic cell state and drive motor state, and whether can start described driving engine according to described engine condition and drive motor condition adjudgement drive motor;
If described drive motor can start described driving engine, then determine run up time of presetting according to described electrokinetic cell state further, and utilize described drive motor to start described driving engine;
If the unsuccessful startup within described default run up time of described driving engine, then utilize starter motor to start described driving engine.
2. the startup control method of hybrid vehicle according to claim 1, it is characterized in that, described engine condition comprises the temperature of described engine coolant, described drive motor state comprises the nominal torque of described drive motor, describedly whether can start described driving engine according to described engine condition and drive motor condition adjudgement drive motor and comprises:
According to the resisting moment of the temperature determination driving engine of described engine coolant;
If the nominal torque of described drive motor is greater than the resisting moment of described driving engine, then judge that described drive motor can start described driving engine, if the nominal torque of described drive motor is not more than the resisting moment of described driving engine, then judge that drive motor can not start described driving engine.
3. the startup control method of hybrid vehicle according to claim 1, is characterized in that, described electrokinetic cell state comprises the temperature of electrokinetic cell.
4. the startup control method of hybrid vehicle according to claim 2, is characterized in that, also comprise:
Under described start-up mode, if the temperature of described engine coolant is lower than preset temperature value, then exit described start-up mode.
5. the startup control method of hybrid vehicle according to claim 1, is characterized in that, described engine condition also comprises engine speed, and described method also comprises:
Under described start-up mode, if described engine speed reduces, and lower than preset rotation speed value, then exit described start-up mode.
6. the startup control method of hybrid vehicle according to claim 1, is characterized in that, described electrokinetic cell state also comprises state-of-charge and discharge power, and described method also comprises:
Under described start-up mode, if described state-of-charge is lower than default charged value, or described discharge power is lower than predetermined power value, then exit described start-up mode.
7. the startup control method of hybrid vehicle according to claim 1, is characterized in that, described drive motor state also comprises drive motor trouble free, and described method also comprises:
Under described start-up mode, if described drive motor has fault, then exit described start-up mode.
8. a startup control system for hybrid vehicle, is characterized in that, comprising:
Engine management system, described engine management system is for detecting engine condition;
Battery management system, described battery management system is for detecting electrokinetic cell state;
Motor management systems, described motor management systems is for detecting drive motor state;
Full-vehicle control unit, described full-vehicle control unit is for receiving enabled instruction, and enter start-up mode, under described start-up mode, whether described driving engine can be started according to described engine condition and drive motor condition adjudgement drive motor, when described drive motor can start described driving engine, the run up time of presetting is determined further according to described electrokinetic cell state, and control described drive motor and start described driving engine,, control starter motor and start described driving engine during unsuccessful startup at described driving engine within described default run up time.
9. the startup control system of hybrid vehicle according to claim 8, it is characterized in that, described engine condition comprises the temperature of described engine coolant, and described drive motor state comprises the nominal torque of described drive motor, and described full-vehicle control unit is used for:
According to the resisting moment of the temperature determination driving engine of described engine coolant;
When the nominal torque of described drive motor is greater than the resisting moment of described driving engine, judge that described drive motor can start described driving engine, when the nominal torque of described drive motor is not more than the resisting moment of described driving engine, judge that drive motor can not start described driving engine.
10. the startup control system of hybrid vehicle according to claim 8, is characterized in that, described electrokinetic cell state comprises the temperature of electrokinetic cell.
The startup control system of 11. hybrid vehicles according to claim 9, is characterized in that, described full-vehicle control unit also for:
When the temperature of described engine coolant is lower than preset temperature value, exit described start-up mode.
The startup control system of 12. hybrid vehicles according to claim 8, is characterized in that, described engine condition also comprises engine speed, described full-vehicle control unit also for:
Reduce at described engine speed, and during lower than preset rotation speed value, exit described start-up mode.
The startup control system of 13. hybrid vehicles according to claim 8, is characterized in that, described electrokinetic cell state also comprises state-of-charge and discharge power, described full-vehicle control unit also for:
At described state-of-charge lower than default charged value, or described discharge power lower than predetermined power value time, exit described start-up mode.
The startup control system of 14. hybrid vehicles according to claim 8, is characterized in that, described drive motor state also comprises drive motor trouble free, described full-vehicle control unit also for:
When described drive motor has fault, exit described start-up mode.
15. 1 kinds of hybrid vehicles, is characterized in that, comprise the startup control system of the hybrid vehicle according to Claim 8 described in-14 any one.
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