CN102141141A - Method for controlling crawling function of AMT (Advanced Manufacturing Technology) transmission - Google Patents
Method for controlling crawling function of AMT (Advanced Manufacturing Technology) transmission Download PDFInfo
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- CN102141141A CN102141141A CN2011100313375A CN201110031337A CN102141141A CN 102141141 A CN102141141 A CN 102141141A CN 2011100313375 A CN2011100313375 A CN 2011100313375A CN 201110031337 A CN201110031337 A CN 201110031337A CN 102141141 A CN102141141 A CN 102141141A
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Abstract
The invention relates to a method for controlling the crawling function of an AMT (Advanced Manufacturing Technology) transmission, which comprises the following steps of: analyzing received accelerator pedal signals, vehicle speed signals, shift lever position signals, brake signals and hand brake signals by utilizing a transmission control unit (TCU); and when meeting the specified conditions, the transmission control unit (TCU) outputs clutch separation signals to separate the clutch, thereby realizing control on the crawling function of the AMT transmission when an automobile is in different states. Therefore, the clutch is not damaged by slide abrasion in a parking process of the automobile or when the automobile is in an idling wait state, so that the service life of the clutch is prolonged.
Description
Technical field
The invention belongs to automotive transmission function control system technical field, be specifically related to a kind of AMT(Automated Mechanical Transmission, automatic mechanical transmission) the creep controlling method of function of vehicle.
Background technique
AMT is also heating up to its research year by year owing to had extremely each the big automobile vendor favor since the last century the eighties of transmission efficiency height, mechanism's compactness, reliable operation, advantage such as cheap.AMT be on original manual transmission basis, added the actuating motor that selects gear shift and clutch replace manual operation clutch pedal, select gear shifting handle, its cost is approximately higher than manual transmission, but it is more much lower than automatic transmission (AT) cost, therefore it equally with manual transmission possesses transmission efficiency height, economical and practical advantage.
The automatic transmission function of creeping is to utilize the engine idle rotating speed by fluid torque converter power to be passed to wheel then, here can not use one grade of direct transferring power, because it is bigger by one grade gear ratio engine speed to be carried out the speed of a motor vehicle that obtains after the speed change, must can not be to the safe speed of a motor vehicle of the function of creeping greater than 10KM/H, so it will use fluid torque converter in power transmission process bending moment effect reduces the speed of a motor vehicle.Function equally can not be directly carried out transferring power with one grade velocity ratio and the AMT car is creeped, and can only select to use clutch half jointing state, and just the sliding wear of clutch reduces the speed of a motor vehicle to satisfy speed of a motor vehicle demand.If but make clutch be in the damage that the sliding wear state can cause clutch for a long time, directly influence the working life of clutch.Such as in the process of stopping or vehicle when being in the idling wait state, the speed of a motor vehicle is very low or be zero, and the AMT car can not be controlled the speed of a motor vehicle by the dynamics of artificial solenoidoperated cluthes pedal as the MT car, therefore if can carry out good control to the speed changer function of creeping, just can avoid the damage that clutch is caused.
Summary of the invention
The purpose of this invention is to provide a kind of AMT speed changer function control method of creeping, in the process of stopping or vehicle when being in the idling wait state, can control, clutch is not damaged because of sliding wear the function of creeping.
The AMT speed changer of the present invention function control method of creeping is: set automobile brake pedal and step on duration value, speed of a motor vehicle lower limit and the speed of a motor vehicle duration value less than speed of a motor vehicle lower limit, and it is demarcated in automotive transmission control unit TCU.
By vehicle speed signal sensor acquisition vehicle speed signal, gearshift position sensor acquisition gearshift position signal, brake signal sensor acquisition brake signal, the parking brake signal emitter is gathered the parking brake signal, and this vehicle speed signal, gearshift position signal, brake signal and parking brake signal are passed to transmission control unit TCU.
Gather accelerator pedal signal by accelerator pedal sensor, and this accelerator pedal signal is passed to control unit of engine ECU, by control unit of engine ECU the accelerator pedal signal of being gathered is passed to transmission control unit TCU by the CAN bus again.
Transmission control unit TCU analyzes accelerator pedal signal, vehicle speed signal, gearshift position signal, brake signal and the parking brake signal accepted, when meeting the following conditions simultaneously, transmission control unit TCU output clutch separation signal makes clutch separation: a, gas pedal are unclamped; B, brake petal are stepped on the endurance and are stepped on duration value greater than the brake petal that sets; C, the speed of a motor vehicle are less than the speed of a motor vehicle lower limit that sets, and this speed of a motor vehicle endurance is greater than the duration value of the speed of a motor vehicle that sets less than speed of a motor vehicle lower limit; D, shift level are positioned at other gear except that the N shelves; E, parking brake unclamp.
Adopt the AMT speed changer of the present invention function control method of creeping, in the process of parking of automobile or automobile when being in the idling wait state, transmission control unit TCU can the output clutch separation signal make clutch separation, thereby when being in different conditions, automobile realizes the creep control of function of AMT speed changer, make clutch in automobile parking or automobile when being in the idling wait state, not because of sliding wear causes damage, prolonged the working life of clutch.
Description of drawings
Now in conjunction with the accompanying drawings the present invention is described in further detail.
Fig. 1 is the creep logic block-diagram of function control method of AMT speed changer of the present invention.
Embodiment
As shown in Figure 1, this AMT speed changer function control method of creeping is:
Set automobile brake pedal and step on duration value, speed of a motor vehicle lower limit and the speed of a motor vehicle duration value, and it is demarcated in automotive transmission control unit TCU less than speed of a motor vehicle lower limit.
By vehicle speed signal sensor acquisition vehicle speed signal, gearshift position sensor acquisition gearshift position signal, brake signal sensor acquisition brake signal, the parking brake signal emitter is gathered the parking brake signal, and this vehicle speed signal, gearshift position signal, brake signal and parking brake signal are passed to transmission control unit TCU.
Gather accelerator pedal signal by accelerator pedal sensor, and this accelerator pedal signal is passed to control unit of engine ECU, by control unit of engine ECU the accelerator pedal signal of being gathered is passed to transmission control unit TCU by the CAN bus again.
Transmission control unit TCU analyzes accelerator pedal signal, vehicle speed signal, gearshift position signal, brake signal and the parking brake signal accepted, when meeting the following conditions simultaneously, transmission control unit TCU output clutch separation signal makes clutch separation: a, gas pedal are unclamped; B, brake petal are stepped on the endurance and are stepped on duration value greater than the brake petal that sets; C, the speed of a motor vehicle are less than the speed of a motor vehicle lower limit that sets, and this speed of a motor vehicle endurance is greater than the duration value of the speed of a motor vehicle that sets less than speed of a motor vehicle lower limit; D, shift level are positioned at other gear except that the N shelves; E, parking brake unclamp.
Claims (1)
1. AMT speed changer function control method of creeping is characterized in that:
Set automobile brake pedal and step on duration value, speed of a motor vehicle lower limit and the speed of a motor vehicle duration value, and it is demarcated in automotive transmission control unit TCU less than speed of a motor vehicle lower limit;
By vehicle speed signal sensor acquisition vehicle speed signal, gearshift position sensor acquisition gearshift position signal, brake signal sensor acquisition brake signal, the parking brake signal emitter is gathered the parking brake signal, and this vehicle speed signal, gearshift position signal, brake signal and parking brake signal are passed to transmission control unit TCU;
Gather accelerator pedal signal by accelerator pedal sensor, and this accelerator pedal signal is passed to control unit of engine ECU, by control unit of engine ECU the accelerator pedal signal of being gathered is passed to transmission control unit TCU by the CAN bus again;
Transmission control unit TCU analyzes accelerator pedal signal, vehicle speed signal, gearshift position signal, brake signal and the parking brake signal accepted, when meeting the following conditions simultaneously, transmission control unit TCU output clutch separation signal makes clutch separation: a, gas pedal are unclamped; B, brake petal are stepped on the endurance and are stepped on duration value greater than the brake petal that sets; C, the speed of a motor vehicle are less than the speed of a motor vehicle lower limit that sets, and this speed of a motor vehicle endurance is greater than the duration value of the speed of a motor vehicle that sets less than speed of a motor vehicle lower limit; D, shift level are positioned at other gear except that the N shelves; E, parking brake unclamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100313375A CN102141141A (en) | 2011-01-28 | 2011-01-28 | Method for controlling crawling function of AMT (Advanced Manufacturing Technology) transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100313375A CN102141141A (en) | 2011-01-28 | 2011-01-28 | Method for controlling crawling function of AMT (Advanced Manufacturing Technology) transmission |
Publications (1)
| Publication Number | Publication Date |
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| CN102141141A true CN102141141A (en) | 2011-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100313375A Pending CN102141141A (en) | 2011-01-28 | 2011-01-28 | Method for controlling crawling function of AMT (Advanced Manufacturing Technology) transmission |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410366A (en) * | 2011-09-21 | 2012-04-11 | 浙江吉利汽车研究院有限公司 | Automobile automatic shifting control method |
| JP2013209044A (en) * | 2012-03-30 | 2013-10-10 | Daimler Ag | Control device of hybrid electric vehicle |
| CN103557319A (en) * | 2013-10-31 | 2014-02-05 | 长城汽车股份有限公司 | Low-speed crawling control method of automatic transmission automobile |
| CN104632939A (en) * | 2013-11-12 | 2015-05-20 | 陕西国力信息技术有限公司 | Clutch main kernel control CPU based on AMT system |
| CN105626720A (en) * | 2014-11-21 | 2016-06-01 | Zf腓特烈斯哈芬股份公司 | Method used for operating clutch assembly capable of being electrically manipulated and motor vehicle |
| CN106644473A (en) * | 2017-03-14 | 2017-05-10 | 芜湖万里扬变速器有限公司 | Manual-automatic gearbox delivery and checking test control method |
| CN107676475A (en) * | 2017-08-24 | 2018-02-09 | 宝沃汽车（中国）有限公司 | shift control method, device and vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006038571A1 (en) * | 2005-09-10 | 2007-03-22 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Method for control of automatic transmission gear of vehicle switched to crawler function, comprises use of correcting factor in determination of engine load momentum |
| JP2007118862A (en) * | 2005-10-31 | 2007-05-17 | Honda Motor Co Ltd | Creep controller |
| CN101016032A (en) * | 2005-10-31 | 2007-08-15 | 通用汽车公司 | Vehicle speed control system |
| CN101201101A (en) * | 2006-12-14 | 2008-06-18 | 比亚迪股份有限公司 | AMT vehicle gear-shift mechanism with shift point correcting function and correcting method thereof |
| US20100227733A1 (en) * | 2009-03-03 | 2010-09-09 | Zf Friedrichshafen Ag | Method for treatment of a driveline |
-
2011
- 2011-01-28 CN CN2011100313375A patent/CN102141141A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006038571A1 (en) * | 2005-09-10 | 2007-03-22 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Method for control of automatic transmission gear of vehicle switched to crawler function, comprises use of correcting factor in determination of engine load momentum |
| JP2007118862A (en) * | 2005-10-31 | 2007-05-17 | Honda Motor Co Ltd | Creep controller |
| CN101016032A (en) * | 2005-10-31 | 2007-08-15 | 通用汽车公司 | Vehicle speed control system |
| CN101201101A (en) * | 2006-12-14 | 2008-06-18 | 比亚迪股份有限公司 | AMT vehicle gear-shift mechanism with shift point correcting function and correcting method thereof |
| US20100227733A1 (en) * | 2009-03-03 | 2010-09-09 | Zf Friedrichshafen Ag | Method for treatment of a driveline |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410366A (en) * | 2011-09-21 | 2012-04-11 | 浙江吉利汽车研究院有限公司 | Automobile automatic shifting control method |
| JP2013209044A (en) * | 2012-03-30 | 2013-10-10 | Daimler Ag | Control device of hybrid electric vehicle |
| CN103557319A (en) * | 2013-10-31 | 2014-02-05 | 长城汽车股份有限公司 | Low-speed crawling control method of automatic transmission automobile |
| CN104632939A (en) * | 2013-11-12 | 2015-05-20 | 陕西国力信息技术有限公司 | Clutch main kernel control CPU based on AMT system |
| CN105626720A (en) * | 2014-11-21 | 2016-06-01 | Zf腓特烈斯哈芬股份公司 | Method used for operating clutch assembly capable of being electrically manipulated and motor vehicle |
| CN106644473A (en) * | 2017-03-14 | 2017-05-10 | 芜湖万里扬变速器有限公司 | Manual-automatic gearbox delivery and checking test control method |
| CN107676475A (en) * | 2017-08-24 | 2018-02-09 | 宝沃汽车（中国）有限公司 | shift control method, device and vehicle |
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Application publication date: 20110803 |