A vehicle braking control method and device
A vehicle braking and control method technology, which is applied in the direction of transmission, transmission control, fluid transmission, etc., can solve the problems of reducing the driver's driving experience, shaking, etc., and achieve the effect of improving driving experience and improving accuracy
Active Publication Date: 2022-07-26
ZHEJIANG GEELY HLDG GRP CO LTD +1
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Problems solved by technology
[0005] When the vehicle is under braking and the torque converter is not turned on, the engine speed is always consistent with the speed of the turbine of the torque converter. When the vehicle is under braking and the torque converter is turned on, the speed of the turbine of the torque converter is high Depending on the engine speed, the vehicle is in the above-mentioned second driving state. As the vehicle speed decreases, the turbine speed of the torque converter, which is proportional to the change in vehicle speed, will gradually decrease, while the engine speed remains basically unchanged. Therefore, the torque converter Turbine speed forms a crossover to engine speed, that is, the engine speed exceeds the turbine speed. After crossing, the vehicle is in the first state, the driving state of the vehicle changes, and the vehicle generates driving force, and the absolute value of the vehicle deceleration decreases, thus bringing a feeling of towering That is, the vehicle shakes, reducing the driver's driving experience
Method used
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[0027] In order to make the technical problems, technical solutions and advantages solved by the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
[0028] like figure 1 As shown, the steps of the vehicle braking control method are as follows: the acquisition module 1 collects the braking force and vehicle speed information in real time and outputs it to the control unit 2, and the control unit 2 judges whether the vehicle is in the braking condition, and judging the braking condition includes judging the braking condition. Whether the pedal opening is greater than 0, if the brake pedal opening is greater than 0, it is judged that it is in the braking condition.
[0029] If it is in the braking condition, it is judged whe...
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The present invention provides a vehicle braking control method and device, which relate to the field of vehicle braking. The method steps of the present invention include collecting information, judging whether it is in a braking condition, judging whether to activate the function of eliminating the rollover and adjusting the working radius of the bevel wheel. The device structure of the present invention includes a control unit, a collection module and a gearbox. Adjust the working radius of the gearbox cone wheel so that the turbine speed of the torque converter is always not higher than the engine speed, so that the vehicle does not pass through when braking, which avoids the change of the driving state of the vehicle, which reduces the absolute value of the vehicle deceleration and prevents the vehicle from passing through. Generates driving force and eliminates rollover when the vehicle brakes.
Description
technical field [0001] The present invention relates to the field of vehicle braking, in particular to a vehicle braking control method and device. Background technique [0002] At present, many vehicles are equipped with a continuously variable transmission (CVT). The connection between the CVT and the engine mainly includes a torque converter and a multi-plate clutch. The multi-plate clutch does not have the natural and smooth flexible transmission effect of the torque converter. The starting requirements are high, so a torque converter is usually used. [0003] The power transmission path of the vehicle includes the engine, the torque converter, the gearbox, the drive shaft and the tires. The gearbox is connected to the tires through the drive shaft, and the torque converter is rigidly connected to the input shaft of the gearbox. The speed of the bevel wheel is the speed of the torque converter. During the driving process, the speed ratio of the gearbox changes continuou...
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IPC IPC(8): F16H41/24F16H61/00
CPCF16H41/24F16H61/00
Inventor 余晓汤国杰邵力清胡文瑜
Owner ZHEJIANG GEELY HLDG GRP CO LTD