Electronic parking braking method

Abstract

The invention discloses an electronic parking braking method. The method comprises the following steps of: first, parking braking, namely transferring prestored air pressure in an air reservoir to brake chambers of each wheel by controlling an active air supply electromagnetic valve to realize the parking braking; and second, releasing braking, namely when a road section is a straight road surface, simultaneously releasing a drive wheel and a driven wheel of a controlled vehicle once; and when the road section is a downhill road section or an uphill road section, adopting a corresponding control strategy according to the rotating situations of each wheel of the vehicle, and releasing the air pressure in the brake chambers of each wheel of the controlled vehicle separately by utilizing a pressure maintaining effect of an antilock brake system (ABS) electromagnetic regulating valve. The electronic parking braking method has a reasonable design, low investment cost, high intelligence degree and good use effect, is convenient to operate, and solves the practical problems of high technical requirements on drivers, brake force transfer gap of mechanical system, great difficulties in starting operation on low-adhesion coefficient road surface and ramp, poor use effect and the like in a conventional mechanical parking braking system.

Description

technical field [0001] The invention belongs to the technical field of automobile braking, and in particular relates to an electronic parking braking method. Background technique [0002] With the rapid development of urban roads and the continuous improvement of vehicle driving speed, the driving speed of vehicles is getting higher and higher, coupled with the continuous increase of urban population and the continuous increase of car ownership, all make the driver's control over the operation of vehicles become particularly important. At present, the traditional parking brake system used requires the driver to continue to depress the brake pedal after releasing the parking brake to prevent the vehicle from sliding backwards, but at the same time it needs to depress the accelerator pedal to increase the engine speed To obtain the drive torque, so the driver's requirements are relatively high. In addition, the traditional mechanical parking brake (hand brake) needs to rely ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an electronic parking brake method with reasonable design, convenient wiring, low investment cost, easy operation, high intelligence and good effect , can effectively solve many practical problems in the traditional mechanical parking brake system, such as high technical requirements for the driver, mechanical system braking force transmission gap, low adhesion coefficient road surface and slope starting operation difficulty and poor use effect, etc.

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