CN102806902A - Electronic pump auxiliary control method for start-stop function of automatic transmission - Google Patents
Electronic pump auxiliary control method for start-stop function of automatic transmission Download PDFInfo
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- CN102806902A CN102806902A CN2012102842471A CN201210284247A CN102806902A CN 102806902 A CN102806902 A CN 102806902A CN 2012102842471 A CN2012102842471 A CN 2012102842471A CN 201210284247 A CN201210284247 A CN 201210284247A CN 102806902 A CN102806902 A CN 102806902A
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Abstract
The invention relates to an electronic pump auxiliary control method for a start-stop function of an automatic transmission. The control method includes three control modes of using an auxiliary electronic pump to control a control unit of the automatic transmission in starting and stopping, wherein the first mode includes that the electronic pump operates continuously when an engine stops operating, the second mode includes that the electronic pump operates intermittently when the engine stops operating, and the second mode includes that the electronic pump operates for a short time before the engine is started. Using the electronic pump auxiliary control method for the start-stop function of the automatic transmission can effectively solve the problem of insufficiency in oil pressure when an automobile is started and further solve the problems of difficulty in automobile starting and shaking in starting, so that traffic efficiency can be guaranteed.
Description
Technical field
The present invention relates to a kind of on-off control method of automatic transmission with hydraulic torque converter, the particularly a kind of new control method of automatic transmission with hydraulic torque converter in vehicle start-stop technical application of being furnished with electronic pump.
Background technology
At present, vehicle when the red light wait time is longer, can shutting engine down to improve fuel economy; Practice thrift cost, reduce discharging and also reduce exhaust emissions, and when fire an engine once more; Because driving engine is in halted state before; Change-speed box AFT oil pressure is zero, can't set up enough oil pressure immediately and be used for the power-transfer clutch combination, makes the vehicle quick start; And the jitter problem that takes place when often causing vehicle launch difficulty and vehicle launch, when being worked the mischief, vehicle itself influences traffic efficiency.
Summary of the invention
The objective of the invention is to overcome the weak point that exists in the above-mentioned technology; Provide a kind of in the middle of the process that driving engine stops, assisting power-transfer clutch when vehicle launch is provided to combine the electronic pump auxiliary control method of the automatic transmission with hydraulic torque converter start-stop function of required minimum oil pressure through electronic pump.In order to achieve the above object; The technical scheme that the present invention adopts is: this control method comprise 3 kinds with the auxiliary electron pump to control unit for automatic shift in starting with the mode when stopping; One of which: electronic pump continuous running during engine stop working; Its two: electronic pump intermittent duty during engine stop working, its three: electronic pump short-term job before the engine starting.Advantage of the present invention is: the situation that the oil pressure that possibly occur in the time of can effectively overcoming vehicle launch is not enough, the jitter problem when solving vehicle launch difficulty and startup guarantees traffic efficiency.
Description of drawingsFig. 1 is the principle sketch of mode one of the present invention; Fig. 2 is the principle sketch of mode two of the present invention; Fig. 3 is the principle sketch of mode three of the present invention.
The specific embodimentBelow in conjunction with accompanying drawing embodiments of the invention are described in further detail.Can know by Fig. 1-Fig. 3; This control method of the present invention comprise 3 kinds with the auxiliary electron pump to control unit for automatic shift in starting with the mode when stopping; One of which: electronic pump continuous running during engine stop working; Its two: electronic pump intermittent duty during engine stop working, its three: electronic pump short-term job before the engine starting.The principle of said mode one does, vehicle stops, and control unit of engine ECU detects the speed of a motor vehicle and equals 0 and continue after a period of time; ECU control driving engine stops; After transmission control unit TCU detected engine speed and is reduced to a threshold value, the control electronic pump was started working, and the electronic pump of TCU control afterwards is with a constant rotational speed continuous running; The pressure of power-transfer clutch binding site only is provided; Behind the engine starting, after TCU detected engine speed and is higher than a threshold value, TCU control electronic pump quit work.The principle of said mode two does, vehicle stops, and control unit of engine ECU detects the speed of a motor vehicle and equals 0 and continue after a period of time; ECU control driving engine stops, and transmission control unit TCU detects engine speed and is reduced to after the threshold value, and the control electronic pump is started working; At first TCU sends one section control signal, makes the electronic pump rotating speed rise, after pressure sensor detects oil circuit pressure and rises to the maximum pressure that electronic pump can provide; TCU stops to send control signal, and electronic pump shuts down, and treats that pressure sensor detects the oil circuit pressure decay after power-transfer clutch binding site pressure; TCU sends control signal once more, and so circulation repeatedly.Behind the engine starting, TCU detects engine speed and is higher than after the threshold value, and TCU no longer sends the electronic pump control signal.The principle of said mode three does, vehicle stops, and control unit of engine ECU detects the speed of a motor vehicle and equals 0 and continue after a period of time; ECU control driving engine stops, when car starts once more, when engine speed rises to a threshold value; TCU control electronic pump is started working, and directly is pressurized to maximum pressure and maintenance that electronic pump can provide, up to engine starting; TCU detects engine speed and is higher than after the threshold value, and TCU control electronic pump quits work.Fig. 1 of the present invention is the principle sketch of mode one of the present invention, and is as shown in the figure: when vehicle stops, behind the engine off; The rotating speed of driving engine descends rapidly, and after transmission control unit TCU detected engine speed and is reduced to a threshold value, the control electronic pump was started working; The electronic pump of TCU control afterwards is with a constant rotational speed continuous running; Pressure a little more than the power-transfer clutch binding site only is provided, after engine restart, after TCU detects engine speed and is higher than a threshold value; TCU control electronic pump quits work normal vehicle operation; Fig. 2 is the principle sketch of mode two of the present invention, and is as shown in the figure: when vehicle stops, behind the engine off; The rotating speed of driving engine descends rapidly, and motivation control unit ECU detects the speed of a motor vehicle and equals after 0 lasting a period of time, and ECU control driving engine stops; Transmission control unit TCU detects engine speed and is reduced to after the threshold value, and the control electronic pump is started working, and at first TCU sends one section control signal; Make the electronic pump rotating speed rise, after pressure sensor detected oil circuit pressure and rises to the maximum pressure that electronic pump can provide, TCU stopped to send control signal; Electronic pump shuts down; Treat that pressure sensor detects the oil circuit pressure decay after power-transfer clutch binding site pressure, TCU sends control signal once more, and so circulation repeatedly.Behind the engine starting, TCU detects engine speed and is higher than after the threshold value, and TCU no longer sends the electronic pump control signal; Fig. 3 is the principle sketch of mode three of the present invention, and is as shown in the figure: when vehicle stops, control unit of engine ECU detects the speed of a motor vehicle and equals 0 and continue after a period of time; ECU control driving engine stops; When the brake-pedal load sensor begins to descend to brake-pedal load, promptly the driver has and plans after the intention of cycling start, and TCU control electronic pump is started working; Directly be pressurized to maximum pressure and maintenance that electronic pump can provide; Up to engine starting, TCU detects engine speed and is higher than after the threshold value, and TCU control electronic pump quits work.
Claims (4)
1. the electronic pump auxiliary control method of an automatic transmission with hydraulic torque converter start-stop function; It is characterized in that: this control method comprise 3 kinds with the auxiliary electron pump to control unit for automatic shift in starting with the mode when stopping; One of which: electronic pump continuous running during engine stop working; Its two: electronic pump intermittent duty during engine stop working, its three: electronic pump short-term job before the engine starting.
2. the electronic pump auxiliary control method of a kind of automatic transmission with hydraulic torque converter start-stop function according to claim 1 is characterized in that: the principle of said mode one is that vehicle stops; Control unit of engine ECU detects the speed of a motor vehicle and equals 0 and continue after a period of time, and ECU control driving engine stops, after transmission control unit TCU detects engine speed and is reduced to a threshold value; The control electronic pump is started working; The electronic pump of TCU control afterwards only provides the pressure of power-transfer clutch binding site, behind the engine starting with a constant rotational speed continuous running; After TCU detected engine speed and is higher than a threshold value, TCU control electronic pump quit work.
3. the electronic pump auxiliary control method of a kind of automatic transmission with hydraulic torque converter start-stop function according to claim 1 is characterized in that: the principle of said mode two is that vehicle stops; Control unit of engine ECU detects the speed of a motor vehicle and equals after 0 lasting a period of time, and ECU control driving engine stops, and transmission control unit TCU detects engine speed and is reduced to after the threshold value; The control electronic pump is started working, and at first TCU sends one section control signal, makes the electronic pump rotating speed rise; After pressure sensor detected oil circuit pressure and rises to the maximum pressure that electronic pump can provide, TCU stopped to send control signal, and electronic pump shuts down; Treat that pressure sensor detects the oil circuit pressure decay after power-transfer clutch binding site pressure; TCU sends control signal once more, so circulates repeatedly, behind the engine starting; TCU detects engine speed and is higher than after the threshold value, and TCU no longer sends the electronic pump control signal.
4. the electronic pump auxiliary control method of a kind of automatic transmission with hydraulic torque converter start-stop function according to claim 1 is characterized in that: the principle of said mode three is that vehicle stops; Control unit of engine ECU detects the speed of a motor vehicle and equals after 0 lasting a period of time, and ECU control driving engine stops, when car starts once more; When engine speed rises to a threshold value; TCU control electronic pump is started working, and directly is pressurized to maximum pressure and maintenance that electronic pump can provide, up to engine starting; TCU detects engine speed and is higher than after the threshold value, and TCU control electronic pump quits work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210284247.1A CN102806902B (en) | 2012-08-12 | 2012-08-12 | Electronic pump auxiliary control method for start-stop function of automatic transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210284247.1A CN102806902B (en) | 2012-08-12 | 2012-08-12 | Electronic pump auxiliary control method for start-stop function of automatic transmission |
Publications (2)
| Publication Number | Publication Date |
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| CN102806902A true CN102806902A (en) | 2012-12-05 |
| CN102806902B CN102806902B (en) | 2014-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210284247.1A Active CN102806902B (en) | 2012-08-12 | 2012-08-12 | Electronic pump auxiliary control method for start-stop function of automatic transmission |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527339A (en) * | 2013-09-16 | 2014-01-22 | 北京交通大学 | Device and method for controlling diesel engine to rapidly start and stop |
| CN109555852A (en) * | 2018-11-30 | 2019-04-02 | 安徽江淮汽车集团股份有限公司 | A kind of control method and system of automatic gear-box hydraulic electronic pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4993285A (en) * | 1987-04-10 | 1991-02-19 | Kabushiki Kaisha Komatsu Seisakusho | Method and apparatus for controlling speed changing unit |
| CN102057179A (en) * | 2008-06-04 | 2011-05-11 | 日产自动车株式会社 | Fastening pressure control device for starting friction element at time of controlling idle stop of vehicle |
| CN102165222A (en) * | 2009-01-19 | 2011-08-24 | 爱信艾达株式会社 | Power transmitting device and vehicle having power transmitting device mounted thereon |
| CN102452388A (en) * | 2010-10-20 | 2012-05-16 | 通用汽车环球科技运作有限责任公司 | Method and apparatus effecting torque transfer through a transmission during engine autostop and autostart events |
| CN102619975A (en) * | 2011-01-31 | 2012-08-01 | 通用汽车环球科技运作有限责任公司 | Engine start stop applications for solenoid pumps |
-
2012
- 2012-08-12 CN CN201210284247.1A patent/CN102806902B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4993285A (en) * | 1987-04-10 | 1991-02-19 | Kabushiki Kaisha Komatsu Seisakusho | Method and apparatus for controlling speed changing unit |
| CN102057179A (en) * | 2008-06-04 | 2011-05-11 | 日产自动车株式会社 | Fastening pressure control device for starting friction element at time of controlling idle stop of vehicle |
| CN102165222A (en) * | 2009-01-19 | 2011-08-24 | 爱信艾达株式会社 | Power transmitting device and vehicle having power transmitting device mounted thereon |
| CN102452388A (en) * | 2010-10-20 | 2012-05-16 | 通用汽车环球科技运作有限责任公司 | Method and apparatus effecting torque transfer through a transmission during engine autostop and autostart events |
| CN102619975A (en) * | 2011-01-31 | 2012-08-01 | 通用汽车环球科技运作有限责任公司 | Engine start stop applications for solenoid pumps |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527339A (en) * | 2013-09-16 | 2014-01-22 | 北京交通大学 | Device and method for controlling diesel engine to rapidly start and stop |
| CN103527339B (en) * | 2013-09-16 | 2016-05-25 | 北京交通大学 | A kind of method of controlling Diesel engine rapid starting/stopping |
| CN109555852A (en) * | 2018-11-30 | 2019-04-02 | 安徽江淮汽车集团股份有限公司 | A kind of control method and system of automatic gear-box hydraulic electronic pump |
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| CN102806902B (en) | 2014-02-12 |
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