CN102092384A - Reverse protection controlling method for automatic gearbox for vehicle - Google Patents
Reverse protection controlling method for automatic gearbox for vehicle Download PDFInfo
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- CN102092384A CN102092384A CN2010106223857A CN201010622385A CN102092384A CN 102092384 A CN102092384 A CN 102092384A CN 2010106223857 A CN2010106223857 A CN 2010106223857A CN 201010622385 A CN201010622385 A CN 201010622385A CN 102092384 A CN102092384 A CN 102092384A
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- 230000006854 communication Effects 0.000 description 2
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Abstract
The invention discloses a reverse protection controlling method for an automatic gearbox for a vehicle, belonging to the field of automatic gearbox controlling of vehicles. The method comprises the following steps: acquiring a reverse driving signal; judging whether a reverse driving protection condition is tenable or not; sending out a reverse protection request to an engine management system if the reverse driving protection condition is tenable, and sending out a vehicle speed alarm request to an instrument panel module. By providing the reverse protection controlling method for the automatic gearbox for a vehicle, the functions of protection control and vehicle speed alarm to highest vehicle speed limit in the reverse driving process are realized, in terms of active safety and passive safety, a driver is protected from unexpected accident in the reverse driving process.
Description
Technical field
The present invention relates to automatic gearbox of vehicles control field, particularly the self-protection control policy of Automatic Transmission when reverse gear.
Background technology
Enter the nineties in 20th century, global scientific and technological fast development makes new Eltec and automatic control technology constantly be used in the automatic gearbox of vehicles, and performance-oriented Automatic Transmission constantly is pushed to the market.The automatic transmission vehicle that is equipped with Automatic Transmission removes hand shift without the driver, and vehicle can select suitable gear to travel according to speed of travelling and traffic conditions automatically.
The automatic transmission vehicle reaches low oil consumption because of it brings the omnibearing enjoyment of travelling such as people are light, comfortable in driving procedure, low emission performance is approved that gradually Automatic Transmission entrucking rate is more and more higher on the market, and range of use is also more and more wider.
In realizing process of the present invention, the contriver finds that there is following problem at least in prior art: the automatic transmission vehicle is in the reverse gear driving process, and chaufeur is used to observe back mirror and control bearing circle with main energy, is difficult for monitoring in real time, the control speed of a motor vehicle.Especially run into the road conditions of longer backing distance, the speed of a motor vehicle may be increased to a dangerous speed gradually, and chaufeur is difficult for realizing, this moment, chaufeur was difficult in time hide dangerous situation, has very big personal safety hidden danger if run into emergency case.
Summary of the invention
The purpose of the embodiment of the invention is the defective at above-mentioned prior art; provide a kind of automatic gearbox of vehicles to protect control method with reverse gear; the protection control and the speed of a motor vehicle warning function of maximum speed restriction in the reverse gear driving process have been realized; from active safety and two aspects of passive security, avoid the chaufeur accident that in reverse gear driving process, meets accident.
The technical scheme taked of the present invention is to achieve these goals:
A kind of automatic gearbox of vehicles is protected control method with reverse gear, mainly comprises:
Obtain the reverse gear train signal;
Judge whether reverse gear driving protective condition is set up;
If the establishment of reverse gear driving protective condition then sends reverse gear protection request to engine management system, send speed of a motor vehicle warning request to the gauge panel module.
If the described driving protective condition that reverses gear is false, then cancel reverse gear protection request and speed of a motor vehicle warning request.
Describedly send the speed of a motor vehicle to the gauge panel module and report to the police and also comprise after the request: judge that reverse gear is driven a vehicle and protect exit criteria whether to set up.
The request if the described reverse gear protection request of establishment then cancellation of described reverse gear driving protection exit criteria and the described speed of a motor vehicle are reported to the police.
Described reverse gear train signal comprises engine rotational speed signal, vehicle speed signal and gear signal.
Described reverse gear driving protective condition is specially that the speed of a motor vehicle is higher than on the speed of a motor vehicle threshold values or engine speed is higher than threshold values on the rotating speed.
Described reverse gear driving protection exit criteria is specially the speed of a motor vehicle and is lower than threshold values under the speed of a motor vehicle.
The beneficial effect that the technical scheme that the embodiment of the invention provides is brought is: report to the police by the restriction and the speed of a motor vehicle to maximum speed in the reverse gear process; the contingency that prevents that reverse gear when driving speed of a motor vehicle is too high and cause; for the safety traffic of automatic gearbox of vehicles reverse gear provides reliably, the actv. protection, guarantee that Automatic Transmission can normal operation.
Description of drawings
Fig. 1 is that the Automatic Transmission power system that provides in the embodiment of the invention is formed scheme drawing;
Fig. 2 is that the Automatic Transmission that provides in the embodiment of the invention is protected the control method diagram of circuit with reverse gear.
Among the figure:
1, driving engine, 2, axle, 3, change speed gear box, 4, wheel, 5, the gauge panel module, 6, the change speed gear box control unit, 7, the CAN bus, 8, engine management system.
The specific embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
Present embodiment provides a kind of automatic gearbox of vehicles to protect control method with reverse gear, and with reference to Fig. 1, described method is that communication and collaborative work between change speed gear box control unit, engine management system and the gauge panel module finished by three controllers mainly.Wherein the change speed gear box control unit is a master controller, mainly is responsible for the realization of reverse gear protection control, CAN (Controller Area Network, controller local area network) communication process iso-variable velocity case self function; Engine management system then carries out moment of torsion output control according to its reverse gear of sending protection request; The gauge panel module is then reported to the police according to its speed of a motor vehicle of sending and is asked to carry out speed of a motor vehicle alarm control, but alarm sound is also sent in not only display alarm prompting.
With reference to Fig. 2, a kind of automatic gearbox of vehicles that present embodiment provides mainly comprises with reverse gear protection control method:
Obtain the reverse gear train signal;
The change speed gear box control unit is engine rotational speed signal, vehicle speed signal and gear signal by the signal that bottom layer driving software obtains the reverse gear driving.
Judge whether reverse gear driving protective condition is set up;
The change speed gear box control unit judges by engine rotational speed signal, vehicle speed signal and the gear signal obtained whether reverse gear driving protective condition is set up, and reverse gear driving protective condition is specially the speed of a motor vehicle and is higher than threshold values V on the speed of a motor vehicle
HighOr engine speed is higher than threshold values N on the rotating speed
HighThreshold values V on the speed of a motor vehicle
HighAnd threshold values N on the rotating speed
HighBe the value of demarcating according to different vehicles.
If reverse gear driving protective condition is set up, then the change speed gear box control unit passes through the CAN bus to engine management system transmission reverse gear protection request, sends speed of a motor vehicle warning to the gauge panel module then and asks.
Engine management system is accepted reverse gear protection request back this request of response that the change speed gear box control unit sends, and driving engine is realized oil-break control, and engine output torque is a negative value, and the control speed of a motor vehicle no longer raises.Then, the change speed gear box control unit sends speed of a motor vehicle warning request to the gauge panel module, and by the CAN bus, the gauge panel module is accepted speed of a motor vehicle warning request back and responded this request, carry out gauge panel and show control and chimes of doom control, take care under the prompting chaufeur current working.
The automatic gearbox of vehicles that present embodiment provides is reported to the police by the restriction and the speed of a motor vehicle to maximum speed in the reverse gear process with reverse gear protection control method, too high and the contingency that causes of the speed of a motor vehicle when having prevented the reverse gear driving, for the safety traffic of automatic gearbox of vehicles reverse gear provides reliably, actv. protection, guarantee that Automatic Transmission can normal operation; The Automatic Transmission that present embodiment provides can be applied in the production quantitatively of various Automatic Transmission products with reverse gear protection control method.
In order not influence normal reversing, in the present embodiment,, then cancel reverse gear protection request and speed of a motor vehicle warning request if the described driving protective condition that reverses gear is false, engine management system is in normal working, and the gauge panel module is not sent warning.
In the present embodiment after the gauge panel module sends speed of a motor vehicle warning request; judge whether reverse gear driving protection exit criteria is set up; if described reverse gear driving protection exit criteria is set up; then cancel described reverse gear protection request and described speed of a motor vehicle warning request, described reverse gear driving protection exit criteria is specially the speed of a motor vehicle and is lower than threshold values V under the speed of a motor vehicle
LowV
LowBe the value of demarcating according to different automobile types.At this moment, engine management system recovers normal working, and the gauge panel module withdraws from the reverse gear speed of a motor vehicle and reports to the police.
All or part of content in the technical scheme that above embodiment provides can realize that its software program is stored in the storage medium that can read by software programming, storage medium for example: the hard disk in the computing machine, CD or floppy disk.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. an automatic gearbox of vehicles is protected control method with reverse gear, it is characterized in that, mainly comprises:
Obtain the reverse gear train signal;
Judge whether reverse gear driving protective condition is set up;
If the establishment of reverse gear driving protective condition then sends reverse gear protection request to engine management system, send speed of a motor vehicle warning request to the gauge panel module.
2. automatic gearbox of vehicles according to claim 1 is protected control method with reverse gear, it is characterized in that, if the described driving protective condition that reverses gear is false, then cancels reverse gear protection request and speed of a motor vehicle warning request.
3. whether automatic gearbox of vehicles according to claim 1 is protected control method with reverse gear, it is characterized in that, describedly sends the speed of a motor vehicle to the gauge panel module and reports to the police and also comprise after the request: judge that reverse gear is driven a vehicle and protect exit criteria to set up.
4. automatic gearbox of vehicles according to claim 3 is protected control method with reverse gear, it is characterized in that the request if the described reverse gear protection request of establishment then cancellation of described reverse gear driving protection exit criteria and the described speed of a motor vehicle are reported to the police.
5. automatic gearbox of vehicles according to claim 1 is protected control method with reverse gear, it is characterized in that, described reverse gear train signal comprises engine rotational speed signal, vehicle speed signal and gear signal.
6. automatic gearbox of vehicles according to claim 1 is protected control method with reverse gear, it is characterized in that, described reverse gear driving protective condition is specially that the speed of a motor vehicle is higher than on the speed of a motor vehicle threshold values or engine speed is higher than threshold values on the rotating speed.
7. automatic gearbox of vehicles according to claim 3 is protected control method with reverse gear, it is characterized in that, described reverse gear driving protection exit criteria is specially the speed of a motor vehicle and is lower than threshold values under the speed of a motor vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010622385.7A CN102092384B (en) | 2010-12-28 | 2010-12-28 | Reverse protection controlling method for automatic gearbox for vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010622385.7A CN102092384B (en) | 2010-12-28 | 2010-12-28 | Reverse protection controlling method for automatic gearbox for vehicle |
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| CN102092384A true CN102092384A (en) | 2011-06-15 |
| CN102092384B CN102092384B (en) | 2014-04-02 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102320295A (en) * | 2011-06-20 | 2012-01-18 | 奇瑞汽车股份有限公司 | Self-protection system of car speed control system and control method thereof |
| CN105715783A (en) * | 2015-12-11 | 2016-06-29 | 湖南吉利汽车部件有限公司 | Mechanism and method for reverse gear mistake prevention for manual transmission |
| CN106515707A (en) * | 2016-12-09 | 2017-03-22 | 中国矿业大学(北京) | Intelligent optional constant speed safety reversing device |
| CN115355313A (en) * | 2022-08-31 | 2022-11-18 | 东风商用车有限公司 | Reverse gear vehicle speed adjusting method, device and equipment and readable storage medium |
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| KR19990040430A (en) * | 1997-11-18 | 1999-06-05 | 정몽규 | Engine Control System and Method of Automatic Transmission Vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102320295A (en) * | 2011-06-20 | 2012-01-18 | 奇瑞汽车股份有限公司 | Self-protection system of car speed control system and control method thereof |
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| CN105715783A (en) * | 2015-12-11 | 2016-06-29 | 湖南吉利汽车部件有限公司 | Mechanism and method for reverse gear mistake prevention for manual transmission |
| CN105715783B (en) * | 2015-12-11 | 2018-02-02 | 湖南吉利汽车部件有限公司 | A kind of manual transmission reverses gear error prevention means and method |
| CN106515707A (en) * | 2016-12-09 | 2017-03-22 | 中国矿业大学(北京) | Intelligent optional constant speed safety reversing device |
| CN106515707B (en) * | 2016-12-09 | 2018-12-18 | 中国矿业大学(北京) | A kind of optional safe backing device of constant speed of intelligence |
| CN115355313A (en) * | 2022-08-31 | 2022-11-18 | 东风商用车有限公司 | Reverse gear vehicle speed adjusting method, device and equipment and readable storage medium |
| CN115355313B (en) * | 2022-08-31 | 2023-07-07 | 东风商用车有限公司 | Reverse gear vehicle speed adjusting method, device and equipment and readable storage medium |
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| CN102092384B (en) | 2014-04-02 |
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Effective date of registration: 20160511 Address after: 241006 Wuhu economic and Technological Development Zone, Changchun Road, No. 8, No. Patentee after: CHERY AUTOMOBILE CO., LTD. Address before: 241009 Wuhu economic and Technological Development Zone, Changchun Road, No. 8, No. Patentee before: Saic Chery Automobile Co., Ltd. |
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Address after: 241000 Anhui Province, Wuhu, Hunan Road economic and Technological Development Zone No. 11 Patentee after: Wuhu WanLiYang transmission Co., Ltd. Address before: 241006 Wuhu economic and Technological Development Zone, Changchun Road, No. 8, No. Patentee before: CHERY AUTOMOBILE CO., LTD. |