CN103225688B - Automatic transmission vehicle start control method and device - Google Patents
Automatic transmission vehicle start control method and device Download PDFInfo
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- CN103225688B CN103225688B CN201310121208.4A CN201310121208A CN103225688B CN 103225688 B CN103225688 B CN 103225688B CN 201310121208 A CN201310121208 A CN 201310121208A CN 103225688 B CN103225688 B CN 103225688B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000001514 detection method Methods 0.000 claims abstract description 15
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Abstract
The invention discloses a kind of automatic transmission vehicle start control method and corresponding device；Described method includes: shift position detection step: detection automobile gear level, when gear is D shelves or R shelves, controls clutch oil-filled；Brake signal detecting step: detection brake signal, when brake signal unclamps for brake, continues subsequent step；Throttle signal detecting step: detection accelerator pedal position signal, when accelerator pedal position signal is more than predetermined value, continues subsequent step；Start step: control clutch joint and make vehicle launch.It can be avoided that there is the situation of unexpected vehicle accident during automatic transmission vehicle start because driver is inadvertently loosened brake, improve drive safety.
Description
Technical field
The present invention relates to automotive field, be specifically related to automatic transmission vehicle launch control method and device.
Background technology
When starting automatic transmission vehicle, it is necessary to first variator lever being placed in D shelves or R gear, unclamps hand brake, releasing of brake rear vehicle will start to walk immediately, even if now driver's vehicle of not stepping on the gas also can travel.Fig. 1 show the variation diagram of variator lever, throttle, brake signal, speed and clutch state during vehicle start, by Fig. 1 can be seen that, variator lever adjusts after D shelves or R shelves pre-oiling clutch, after t1 moment releasing of brake, clutch starts to transmit engine torque, vehicle start, speed also by 0kph(kilometerperhour, thousand ms/h) be stepped up to 4kph；Can be always up being in closure state at vehicle start stage throttle.If during the vehicle vehicle that to be huge discharge, engine idle moment of torsion higher, if driver is inadvertently loosened brake, then vehicle will start suddenly with speed faster, it is easy to passengers inside the car and surrounding pedestrian are constituted danger, and therefore the control method of this automatic transmission vehicle start exists potential safety hazard.
Summary of the invention
For the problems referred to above, the present invention provides a kind of automatic transmission vehicle start control method and device, by the condition engaged as control clutch by accelerator pedal position signal, starts, thus avoiding after brake is unclamped, the danger brought immediately.
According to an aspect of the present invention, it is provided that a kind of automatic transmission vehicle start control method, including:
Shift position detection step: detection automobile gear level, when gear is D shelves or R shelves, controls clutch oil-filled；
Brake signal detecting step: detection brake signal, when brake signal unclamps for brake, continues subsequent step；
Throttle signal detecting step: detection accelerator pedal position signal, when accelerator pedal position signal is more than predetermined value, continues subsequent step；
Start step: control clutch joint and make vehicle launch.
Preferably, described method also includes:
Selecting step, manually switch chooses whether to omit throttle signal detecting step.
According to a further aspect of the invention, it is provided that a kind of automatic transmission vehicle start control device, including automatic gear-box control unit, described automatic gear-box control unit receives and controls clutch state according to gear signal and brake signal；It is characterized in that, described device also includes:
Accelerator pedal displacement sensor, accelerator pedal position signal is also passed to described automatic gear-box control unit by detection accelerator pedal position signal；
Described automatic gear-box control unit is arranged to: when gear signal is D shelves or R shelves, controls clutch oil-filled；Brake signal unclamped for brake and described accelerator pedal position signal more than predetermined value time, control clutch and engage so that vehicle launch.
Preferably, described device also includes:
Hand switch, is connected with described automatic gear-box control unit, is used for controlling whether described automatic gear-box control unit is operated in a second mode；
Described automatic gear-box control unit is arranged to, and under the second mode, when gear signal is D shelves or R shelves, controls clutch oil-filled；When brake signal unclamps for brake, control clutch and engage so that vehicle launch.
Step is judged owing to automatic transmission vehicle start control method provided by the invention and device adding accelerator pedal signal, even if releasing of brake rear vehicle is without starting immediately, but wait driver to step on gas pedal, just engage clutch when accelerator pedal signal is more than setting value and start vehicle.There is the situation of unexpected vehicle accident when this makes it possible to avoid automatic transmission vehicle start because driver is inadvertently loosened brake, improve drive safety.And after vehicle launch, driver unclamps gas pedal without the joint interrupting clutch, thus without having influence on cornering ability.
Accompanying drawing explanation
Vehicle-state change procedure chart when Fig. 1 show in prior art automatic transmission vehicle start；
Fig. 2 show automatic transmission vehicle start control device structural representation provided by the invention；
Fig. 3 show according to automatic transmission vehicle start control method flow chart provided by the invention；
Fig. 4 show the vehicle-state change procedure chart obtained according to automatic transmission vehicle start control method provided by the invention.
Detailed description of the invention
The present invention is described in detail for connection with figures and specific embodiment below.
Fig. 2 show a preferred embodiment of automatic transmission vehicle start control device provided by the invention, and described control device is used for controlling automatic transmission vehicle start, specifically includes:
Automatic gear-box control unit 201, receives and controls according to gear signal and brake signal the state of clutch 203；
Accelerator pedal displacement sensor 202, accelerator pedal position signal is also passed to described automatic gear-box control unit 201 by detection accelerator pedal position signal；
It is oil-filled that described automatic gear-box control unit 201 is provided in control clutch 203 when gear signal is D shelves or R shelves, then brake signal unclamped for brake and described accelerator pedal position signal more than predetermined value time, control clutch 203 and engage so that vehicle launch.
Described control device also includes the hand switch 204 being connected with described automatic gear-box control unit 201, is used for controlling whether described automatic gear-box control unit 201 is operated in a second mode.When manually switching the 204 described automatic gear-box control units 201 of selection and being operated in a second mode, it is oil-filled that described automatic gear-box control unit 201 controls clutch 203 when gear signal is D shelves or R shelves, then controls clutch 203 when brake signal unclamps for brake and engages so that vehicle launch.Driver so can be made to select condition needed for automatic transmission vehicle start according to personal like.
Fig. 3 show a preferred embodiment of automatic transmission vehicle start control method provided by the invention, and described control method specifically includes following steps:
Step 101, it is judged that whether automobile gear level, at D shelves or R shelves, is continue, otherwise repeats this step；
Step 102, controls clutch oil-filled；
Step 103, it is judged that whether brake unclamps, is continue, otherwise continues this step；
Step 104, it is judged that whether accelerator pedal signal more than setting value, is, continues, otherwise continues this step；
Step 105, controls clutch and engages, so that vehicle start.
Described automatic transmission vehicle start control method adds accelerator pedal signal and judges step, even if releasing of brake rear vehicle is without starting immediately, but wait driver to step on gas pedal, just engage clutch when accelerator pedal signal is more than setting value and start vehicle.After vehicle launch, driver unclamps gas pedal without the joint interrupting clutch.There is the situation of unexpected vehicle accident when this makes it possible to avoid automatic transmission vehicle start because driver is inadvertently loosened brake, improve drive safety.
During the vehicle start that the automatic transmission vehicle start control method described in above-described embodiment obtains, state changes as shown in Figure 4, when automobile gear level is adjusted D shelves or R shelves by N shelves or P shelves and is stepped on brake, in the t1 moment in Fig. 4, clutch starts oil-filled to prepare transmission engine torque；Do not start immediately when vehicle brake unclamps rear vehicle, and when being to wait for accelerator pedal position signal more than predetermined value, in the t2 moment in Fig. 4, clutch just plasmid conjugation engine torque, now vehicle is just started to walk.Described accelerator pedal position signal represents the aperture of throttle, is 0% when throttle is not turned on, and is 100% when throttle is fully open.Described predetermined value can be 3% or other concrete numerical value.After vehicle start, though accelerator pedal position signal be 0% without interrupt clutch joint.
On the other hand, in order to enable a driver to choose whether to need with described accelerator pedal signal as vehicle start condition according to oneself hobby, described control method can also include selecting step, enables a driver to oneself choose whether to omit described step 104.When driver selects to omit described step 104, described control method directly performs step 105 upon execution after step 103.
Above example is merely to illustrate technical scheme, is not limited to protection scope of the present invention.Those skilled in the art can to the amendment that technical scheme carries out or replace on an equal basis, without deviating from the spirit and scope of technical solution of the present invention.
Claims (6)
1. an automatic transmission vehicle start control method, starts, after unclamping for avoiding braking, the danger brought immediately, including the following steps that order performs:
Shift position detection step: detection automobile gear level, when gear is D shelves or R shelves, controls clutch oil-filled；
Brake signal detecting step: detection brake signal, when brake signal unclamps for brake, continues subsequent step；
Throttle signal detecting step: detection accelerator pedal position signal, when accelerator pedal position signal is more than predetermined value, continues subsequent step；
Start step: control clutch joint and make vehicle launch；
Wherein, after vehicle launch, driver unclamps gas pedal without the joint interrupting clutch.
2. automatic transmission vehicle start control method according to claim 1, it is characterised in that described method also includes:
Selecting step, manually switch chooses whether to omit throttle signal detecting step.
3. automatic transmission vehicle start control method according to claim 1 and 2, it is characterised in that described predetermined value is 3%.
4. an automatic transmission vehicle start control device, starts, after unclamping for avoiding braking, the danger brought immediately, and including automatic gear-box control unit, described automatic gear-box control unit receives and controls clutch state according to gear signal and brake signal；It is characterized in that, described device also includes:
Accelerator pedal displacement sensor, accelerator pedal position signal is also passed to described automatic gear-box control unit by detection accelerator pedal position signal；
Described automatic gear-box control unit is arranged to: when gear signal is D shelves or R shelves, controls clutch oil-filled；Brake signal unclamped for brake and described accelerator pedal position signal more than predetermined value time, control clutch and engage so that vehicle launch；After vehicle launch, driver unclamps gas pedal without the joint interrupting clutch.
5. automatic transmission vehicle start control device according to claim 4, it is characterised in that also include:
Hand switch, is connected with described automatic gear-box control unit, is used for controlling whether described automatic gear-box control unit is operated in a second mode；
Described automatic gear-box control unit is arranged to, and under the second mode, when gear signal is D shelves or R shelves, controls clutch oil-filled；When brake signal unclamps for brake, control clutch and engage so that vehicle launch.
6. the automatic transmission vehicle start control device according to claim 4 or 5, it is characterised in that described predetermined value is 3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310121208.4A CN103225688B (en) | 2013-04-09 | 2013-04-09 | Automatic transmission vehicle start control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310121208.4A CN103225688B (en) | 2013-04-09 | 2013-04-09 | Automatic transmission vehicle start control method and device |
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| Publication Number | Publication Date |
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| CN103225688A CN103225688A (en) | 2013-07-31 |
| CN103225688B true CN103225688B (en) | 2016-06-29 |
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| CN201310121208.4A Active CN103225688B (en) | 2013-04-09 | 2013-04-09 | Automatic transmission vehicle start control method and device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465354B (en) * | 2016-01-15 | 2018-05-08 | 上海汽车变速器有限公司 | Automatic transmission shift control method under maloperation operating mode |
| CN106515714A (en) * | 2016-12-08 | 2017-03-22 | 广州汽车集团股份有限公司 | Automatic hydraulic pressure maintenance control method, device and system combined with engine start-stop control system |
| CN111976728A (en) * | 2020-08-19 | 2020-11-24 | 南京金龙客车制造有限公司 | Method for preventing vehicle from driving by mistake through gear control |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59103062A (en) * | 1982-12-06 | 1984-06-14 | Toyota Motor Corp | Start control method of vehicle |
| JP3196512B2 (en) * | 1994-06-30 | 2001-08-06 | スズキ株式会社 | Automatic engine start / stop device |
| GB9924693D0 (en) * | 1999-10-20 | 1999-12-22 | Luk Getriebe Systeme Gmbh | Transmission systems |
| JP4395718B2 (en) * | 2003-10-16 | 2010-01-13 | いすゞ自動車株式会社 | Vehicle start control device |
| CN100335337C (en) * | 2004-06-02 | 2007-09-05 | 上海大众汽车有限公司 | Automobile driving auxiliary means and system thereof |
| CN100532171C (en) * | 2005-10-27 | 2009-08-26 | 比亚迪股份有限公司 | Control device and method for vehicle startup |
| CN102466032B (en) * | 2010-11-08 | 2016-09-14 | 申水文 | Control device for automatic transmission of vehicle |
| CN102211575A (en) * | 2011-04-27 | 2011-10-12 | 中国重汽集团济南动力有限公司 | Engine idle speed control-based AMT (Automated Mechanical Transmission) vehicle start control method |
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Effective date of registration: 20190328 Address after: 317000 east gate of Taizhou City, Zhejiang Province Co-patentee after: Zhejiang Geely Holding Group Co., Ltd. Patentee after: Zhejiang Geely Automobile Research Institute Co., Ltd. Address before: 311228 No. 206 Farmer's Second House in Linjiang Industrial Park, Xiaoshan District, Hangzhou City, Zhejiang Province Co-patentee before: Zhejiang Geely Automobile Research Institute Co., Ltd. Patentee before: Hangzhou Branch, Zhejiang Geely Automobile Research Institute Co., Ltd. Co-patentee before: Zhejiang Geely Holding Group Co., Ltd. |