CN107539312A - The idling start-stop control system and method for AT type vehicle with automatic transmission - Google Patents
The idling start-stop control system and method for AT type vehicle with automatic transmission Download PDFInfo
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- CN107539312A CN107539312A CN201710708363.4A CN201710708363A CN107539312A CN 107539312 A CN107539312 A CN 107539312A CN 201710708363 A CN201710708363 A CN 201710708363A CN 107539312 A CN107539312 A CN 107539312A
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- engine
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Abstract
The invention discloses a kind of idling start-stop control system and method for AT types vehicle with automatic transmission, including idling start-stop switch, engine idling start-stop control module, ESC body electronics stability system modules, ESC ramps secondary control module, ESC wheel cylinder pressurize modules and automatic transmission module, idling start-stop is switched for opening or closing idling start-stop control system；Engine idling start-stop control module is used to control and coordinate engine idling start-stop；Open mode is in idling start-stop control system; engine is in after idle stop state and meets engine automatic start condition; and ESC ramps secondary control module is not in ramp back work or the working time was less than needed for engine start during the deadline; engine starts to start; ESC wheel cylinder pressurize modules keep pressure of wheel braking cylinder according to setting pressure, setting time; ESC wheel cylinder pressurize module pressurizes terminate backed off after random, and engine start is completed.The present invention can realize vehicle gentle start, improve the impression of user's driving comfort.
Description
Technical field
The invention belongs to automobile engine and chassis control technology, and in particular to a kind of AT types vehicle with automatic transmission it is idle
Fast start-stop control system and method.
Background technology
As national energy-saving regulation is increasingly strict, auto idle speed start stop system can gradually turn into basic configuration, and AT types are automatic
Speed changer, idling start-stop system and ESC body electronics systems stabilisation can be often appeared in configuration of automobiles simultaneously.AT type fluid drives
Vehicle moves forward when the inherent structure of device determines idling start-stop system automatic start, as shown in figure 1, i.e. engine idle stop
The overall process of startup, the longitudinal axis in figure represent engine speed, and transverse axis represents to start the undergone time, and t1 is Startup time,
T2 represents start completion, and engine torque to increasing suddenly during t2, and is delivered to vehicle train in t1 by AT speed changers, makes vehicle
Move forward.
Therefore, it is necessary to develop a kind of idling start-stop control system and method for AT types vehicle with automatic transmission.
The content of the invention
, can be real it is an object of the invention to provide a kind of idling start-stop control system and method for AT types vehicle with automatic transmission
Existing vehicle gentle start, improve the impression of user's driving comfort.
The idling start-stop control system of AT types vehicle with automatic transmission of the present invention, including idling start-stop switch, hair
Motivation idling start-stop control module, ESC body electronics stability system modules, ESC ramps secondary control module, ESC wheel cylinder pressurizes
Module and automatic transmission module, engine idling start-stop control module are steady with idling start-stop switch and ESC body electronics respectively
Determine system module connection, ESC ramps secondary control module respectively with ESC body electronics stability system modules and ESC wheel cylinders
Pressurize module is connected, and the ESC wheel cylinders pressurize module is connected with automatic transmission module；
The idling start-stop is switched for opening or closing idling start-stop control system；
The engine idling start-stop control module is used to control and coordinate engine idling start-stop；
Open mode is in idling start-stop control system, engine is in after idle stop state and meets that engine opens automatically
Dynamic condition, and ESC ramps secondary control module be not in ramp back work or the working time be less than it is complete needed for engine start
During into the time, engine starts to start, and ESC wheel cylinder pressurize modules keep pressure of wheel braking cylinder according to setting pressure, setting time,
ESC wheel cylinder pressurize module pressurizes terminate backed off after random, and engine start is completed.
The idling start-stop controlling method of AT types vehicle with automatic transmission of the present invention, using AT types of the present invention
The idling start-stop control system of vehicle with automatic transmission, its method include：
Step 1, judge whether idling start-stop switch is opened, if so, then entering step 2, if it is not, then performing step 1；
Step 2, when meeting automatic engine stop condition, idling start-stop control system control automatic engine stop；
Step 3, judge whether to meet engine automatic start condition, if satisfied, then enter step 4, such as no, idling start-stop control
System control engine remains shut off state；
Step 4, judge whether ESC ramps secondary control module is in ramp back work, if it is not, then enter step 5, if so,
Then judge whether its working time is less than the deadline needed for engine start again, if so, then entering step 5, if it is not, then ESC
Wheel cylinder pressurize module is not involved in wheel cylinder pressurize work；
Step 5, engine start to start, and ESC wheel cylinder pressurize modules keep pressure of wheel braking cylinder according to setting pressure, setting time,
ESC wheel cylinder pressurize module pressurizes terminate backed off after random, and engine start is completed.
Further, when meeting following condition 2a~2f simultaneously, idling start-stop control system control automatic engine stop；
Condition 2a：Vehicle is in D gears or S gears or R gears；
Condition 2b：Speed is 0；
Condition 2c：Master cylinder pressure is more than preset pressure threshold value；
Condition 2d：Ramp angles residing for vehicle are less than predetermined angle threshold value；
Condition 2e：Engine water temperature is more than preset temperature threshold value；
Condition 2f：Meet the shutdown requirement of engine management system.
Further, the engine automatic start condition is：Gear is switched to D gears, or S gears, or R gears, or master cylinder
Pressure is less than or equal to preset pressure threshold value.
Beneficial effects of the present invention：For configuring AT types automatic transmission, idling start-stop system simultaneously and being aided in ramp
The vehicle of the body electronics systems stabilisation of function, car during idling start-stop system automatic start can effectively solve the problem that by the present invention
The problem of preshoot, improve the impression of user's driving comfort.
Brief description of the drawings
Fig. 1 is the overall process that available engine idle stop starts；
Fig. 2 is the theory diagram of the present invention；
Fig. 3 is the flow chart of the present invention；
In figure：1st, idling start-stop switchs, 2, engine idling start-stop control module, 3, ESC body electronics stability system modules, 4,
ESC ramps secondary control module, 5, ESC wheel cylinder pressurize modules, 6, automatic transmission module.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
The idling start-stop control system of AT type vehicle with automatic transmission as shown in Figure 2, including idling start-stop switch 1, hair
Motivation idling start-stop control module 2, ESC body electronics stability system modules 3, ESC ramps secondary control module 4, ESC wheel cylinders are protected
Die block 5 and automatic transmission module 6, engine idling start-stop control module 2 switch 1 and ESC vehicle bodies with idling start-stop respectively
Electric stabilizing system module 3 connects, ESC ramps secondary control module 4 respectively with ESC body electronics stability system modules 3
Connected with ESC wheel cylinder pressurizes module 5, the ESC wheel cylinders pressurize module 5 is connected with automatic transmission module 6.Wherein:ESC cars
The major control vehicle of body electric stabilizing system module 3 avoids sideslip etc..ESC ramps secondary control module 4 is integrated in ESC vehicle bodies electricity
In sub- stability system modules 3.
The idling start-stop switch 1 is used to open or close idling start-stop control system.The engine idling start-stop control
Molding block 2 is used to control and coordinate engine idling start-stop.Open mode is in idling start-stop control system, engine is in
Meet engine automatic start condition again after idle stop state, and ESC ramps secondary control module 4 is not in ramp backman
Make or the working time be less than needed for engine start during the deadline, engine starts to start, ESC wheel cylinder pressurizes module 5 according to
Setting pressure, setting time keep pressure of wheel braking cylinder, and the pressurize of ESC wheel cylinder pressurizes module 5 terminates backed off after random, and engine start is complete
Into.
When idling start-stop switch 1 is in open mode, as ESC ramps secondary control module 4 works on ramp, i.e.,
ESC ramps secondary control module 4 is played when preventing from slipping by slope after vehicle, and the working time is more than or equal to needed for engine start and completed
During the time, ESC wheel cylinder pressurizes module 5 does not enable（I.e. without wheel cylinder pressurize）, it is electric from starting otherwise such as engine start triggering
Machine, which starts to drag, to be gone to during completing engine start, and ESC wheel cylinder pressurizes module 5 is enabled（Carry out wheel cylinder pressurize）And start work
Make, ESC wheel cylinder pressurizes module 5 keeps pressure of wheel braking cylinder by setting pressure, setting time, makes engine tire " being embraced ", supports
Disappear and the moment of torsion of train is delivered to during starting, vehicle is not moved forward, setting time is general and time since engine start is close, protects
After the pressure time reaches setting time, ESC wheel cylinder pressure holding functions exit.
As shown in figure 3, the idling start-stop controlling method of AT types vehicle with automatic transmission of the present invention, using the present invention
The idling start-stop control system of described AT type vehicle with automatic transmission, its method include：
Step 1, flow start, and judge whether idling start-stop switch 1 is opened, if so, then entering step 2, if it is not, then performing step
Rapid 1, and ESC ramps secondary control module 4 presses former logic operation, i.e. ESC ramps secondary control module 4 performs ramp backman
Make, vehicle slips by slope at ramp after preventing vehicle.
Step 2, when simultaneously meet following condition 2a~2f when, then idling start-stop control system control engine stop automatically
Machine；
Condition 2a：Vehicle is in D gears or S gears or R gears；
Condition 2b：Speed is 0；
Condition 2c：Master cylinder pressure is more than preset pressure threshold value；
Condition 2d：Ramp angles residing for vehicle are less than predetermined angle threshold value；
Condition 2e：Engine water temperature is more than preset temperature threshold value；
Condition 2f：Meet the shutdown requirement of engine management system；
Step 3, judge whether to meet engine automatic start condition, if satisfied, then enter step 4, such as no, idling start-stop control
System control engine remains shut off state；
The engine automatic start condition is：Gear is switched to D gears, or S gears, or R gears, or master cylinder pressure is less than or equal to
Preset pressure threshold value；
Step 4, judge whether ESC ramps secondary control module 4 is in ramp back work, if it is not, then enter step 5, if so,
Then judge whether its working time is less than the deadline needed for engine start again, if so, then entering step 5, if it is not, then ESC
Wheel cylinder pressurize module 5 is not involved in wheel cylinder pressurize work；
Step 5, engine start to start, and ESC wheel cylinder pressurizes module 5 keeps pressure of wheel braking cylinder according to setting pressure, setting time,
The pressurize of ESC wheel cylinder pressurizes module 5 terminates backed off after random, and engine start is completed, and flow terminates.
The present invention will be described in detail by taking C211 vehicles as an example below：
Step 1, judge whether idling start-stop switch 1 is opened, if so, then entering step 2, if it is not, then performing step 1.
Step 2, when simultaneously meet following condition 2a~2f when, then idling start-stop control system control engine stop automatically
Machine.
Condition 2a：Vehicle is in D gears or S gears or R gears；
Condition 2b：Speed is 0；
Condition 2c：Master cylinder pressure is more than preset pressure threshold value（Such as：7bar, it can demarcate）；
Condition 2d：Ramp angles residing for vehicle are less than predetermined angle threshold value（Such as：- 8 °~8 °）, go up a slope or descending can be with；
Condition 2e：Engine water temperature is more than preset temperature threshold value（Such as：60 °, it can demarcate）；
Condition 2f：Meet the shutdown requirement of engine management system（Such as：EMS system fault-free, TCU, ESP, which meet to shut down, to be wanted
Ask）.
Step 3, loosen the brake, master cylinder pressure is less than certain value（Such as：2bar, it can demarcate）, that is, think engine
Meet automatic start condition.
Step 4, judge whether ESC ramps secondary control module 4 is in ramp back work, if it is not, then enter step 5,
If so, then judge whether its working time is less than the deadline needed for engine start again, if so, then enter step 5, if it is not,
Then ESC wheel cylinders pressurize module 5 is not involved in wheel cylinder pressurize work.
Step 5, engine start to start, and ESC wheel cylinder pressurizes module 5 makes pressure of wheel braking cylinder according to setting pressure, setting time
Keep, the pressurize of ESC wheel cylinder pressurizes module 5 terminates and exited, and engine start is completed.
Claims (4)
- A kind of 1. idling start-stop control system of AT types vehicle with automatic transmission, it is characterised in that：Switched including idling start-stop （1）, engine idling start-stop control module（2）, ESC body electronics stability system modules（3）, ESC ramps secondary control module （4）, ESC wheel cylinder pressurize modules（5）With automatic transmission module（6）, engine idling start-stop control module（2）Respectively with idling Play guard's valve（1）With ESC body electronics stability system modules（3）Connection, ESC ramps secondary control module（4）Respectively with ESC body electronics stability system modules（3）With ESC wheel cylinder pressurize modules（5）Connection, the ESC wheel cylinders pressurize module（5）With oneself Dynamic transmission module（6）Connection；The idling start-stop switch（1）For opening or closing idling start-stop control system；The engine idling start-stop control module（2）For controlling and coordinating engine idling start-stop；Open mode is in idling start-stop control system, engine is in after idle stop state and meets that engine opens automatically Dynamic condition, and ESC ramps secondary control module（4）It is not in ramp back work or the working time is less than needed for engine start During the deadline, engine starts to start, ESC wheel cylinder pressurize modules（5）Pressure of wheel braking cylinder is protected according to setting pressure, setting time Hold, ESC wheel cylinder pressurize modules（5）Pressurize terminates backed off after random, and engine start is completed.
- 2. a kind of idling start-stop controlling method of AT types vehicle with automatic transmission, it is characterised in that using as claimed in claim 1 AT type vehicle with automatic transmission idling start-stop control system, its method includes：Step 1, judge that idling start-stop switchs（1）Whether it is opened, if so, then entering step 2, if it is not, then performing step 1；Step 2, when meeting automatic engine stop condition, idling start-stop control system control automatic engine stop；Step 3, judge whether to meet engine automatic start condition, if satisfied, then enter step 4, such as no, idling start-stop control System control engine remains shut off state；Step 4, judge ESC ramps secondary control module（4）Whether ramp back work is in, if it is not, then enter step 5, if It is then to judge whether its working time is less than the deadline needed for engine start again, if so, then entering step 5, if it is not, then ESC wheel cylinder pressurize modules（5）It is not involved in wheel cylinder pressurize work；Step 5, engine start to start, ESC wheel cylinder pressurize modules（5）Pressure of wheel braking cylinder is protected according to setting pressure, setting time Hold, ESC wheel cylinder pressurize modules（5）Pressurize terminates backed off after random, and engine start is completed.
- 3. the idling start-stop controlling method of AT types vehicle with automatic transmission according to claim 2, it is characterised in that：When When meeting following condition 2a~2f simultaneously, idling start-stop control system control automatic engine stop；Condition 2a：Vehicle is in D gears or S gears or R gears；Condition 2b：Speed is 0；Condition 2c：Master cylinder pressure is more than preset pressure threshold value；Condition 2d：Ramp angles residing for vehicle are less than predetermined angle threshold value；Condition 2e：Engine water temperature is more than preset temperature threshold value；Condition 2f：Meet the shutdown requirement of engine management system.
- 4. the idling start-stop controlling method of the AT type vehicle with automatic transmission according to Claims 2 or 3, it is characterised in that： The engine automatic start condition is：Gear is switched to D gears, or S gears, or R gears, or master cylinder pressure is less than or equal to preset Pressure threshold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710708363.4A CN107539312A (en) | 2017-08-17 | 2017-08-17 | The idling start-stop control system and method for AT type vehicle with automatic transmission |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710708363.4A CN107539312A (en) | 2017-08-17 | 2017-08-17 | The idling start-stop control system and method for AT type vehicle with automatic transmission |
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| CN107539312A true CN107539312A (en) | 2018-01-05 |
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| CN201710708363.4A Pending CN107539312A (en) | 2017-08-17 | 2017-08-17 | The idling start-stop control system and method for AT type vehicle with automatic transmission |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022032976A1 (en) * | 2020-08-14 | 2022-02-17 | 中国第一汽车股份有限公司 | Control method for holdsupport for motor startstop suitable for at vehicle type |
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| US20120142491A1 (en) * | 2010-12-07 | 2012-06-07 | Hyundai Motor Company | Method and device for controlling isg logic |
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| CN103573422A (en) * | 2012-07-31 | 2014-02-12 | 株式会社电装 | Engine stop-and-start control apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022032976A1 (en) * | 2020-08-14 | 2022-02-17 | 中国第一汽车股份有限公司 | Control method for holdsupport for motor startstop suitable for at vehicle type |
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Application publication date: 20180105 |