Braking control method and a system of an automatic transmission
An automatic transmission and brake control technology, applied in the field of automobile clutch control, can solve the problems of vehicle flameout, transmission controller TCU control, clutch shifting, etc., to reduce safety hazards and improve intelligence Effect
Inactive Publication Date: 2018-12-25
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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[0004] The invention provides a braking control method and system for an automatic transmission, which solves the problem that the transmission controller TCU cannot control the clutch to shift gears according to the braking pressure when the existing vehicle performs automatic emergency braking in the AEB system, which may easily cause the transmission to drag. The problem of the vehicle stalling due to gear shifting
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[0042] In order to enable those skilled in the art to better understand the solutions of the embodiments of the present invention, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and implementation manners.
[0043] In view of the lack of coordination between the current transmission controller TCU and the AEB system, it is often impossible to correctly control the clutch according to the pedal pressure when the AEB system is working. The present invention provides a brake control method and system for an automatic gearbox. By judging the working state of the AEB system and the braking state of the vehicle, the clutch of the gearbox can be controlled to solve the problem of the existing vehicle when the AEB system performs automatic emergency braking. , The transmission controller TCU cannot control the clutch shift according to the brake pressure, which may easily lead to the problem of stalling of the...
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The invention provides a braking control method and a system of an automatic transmission. The method comprises the following steps: obtaining an AEB system working state message, and judging whetherthe working state of the AEB system is in an active state according to the working state message; If yes, the vehicle braking state is judged; If the vehicle is in the emergency brake state, control the clutch pressure to drop below the half-point until the vehicle exits the brake state. The invention can solve the problem that the transmission controller TCU cannot control the clutch to change gear according to the brake pressure when the existing vehicle is automatically and urgently stopped in the AEB system, which is easy to cause the vehicle to stall due to the transmission drag. The utility model can reduce the hidden danger of the vehicle and improve the intelligence of the vehicle.
Description
Technical field [0001] The invention relates to the technical field of automobile clutch control, in particular to a brake control method and system of an automatic gearbox. Background technique [0002] With the rapid development of automotive intelligence, various new automotive electronic systems are increasingly used in vehicles. In order to improve the selling point of vehicles, major OEMs have matched a variety of electronic technologies in vehicles to make vehicles more understandable. Smarter. Among them, the automatic emergency braking control system (Autonomous Emergency Braking, AEB) is an active safety technology for automobiles. The AEB system uses radar to measure the distance to the vehicle or obstacle in front, and then uses the data analysis module to compare the measured distance with The alarm distance and the safety distance are compared. When the distance is less than the alarm distance, an alarm will be given. When the distance is less than the safety dista...
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IPC IPC(8): B60W10/10B60W30/18
CPCB60W10/10B60W30/18109
Inventor 王烨马培义张友皇徐瑞雪
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD