Distributed braking system with failure backing-up and brake pressure vector control method for distributed braking system with failure backing-up

Abstract

The invention provides a distributed braking system with failure backing-up and a brake pressure vector control method for the distributed braking system with failure backing-up and belongs to the technical field of automobile braking systems. The distributed braking system comprises a braking pedal, a manpower cylinder, a braking controller and a power supply as well as at least three electric cylinders and at least three electromagnetic valves which are electrically connected to the braking controller, wherein each of the electric cylinders is connected to a liquid discharge hole of the manpower cylinder via a braking pipeline respectively; the electric cylinders are in one-to-one corresponding connection to wheel brakes, of the same quantity, on an automobile, and each of the electric cylinders forms a braking loop with the corresponding wheel brake; and the two wheel brakes on two ends of a same shaft communicate via a braking pipeline, one of the electronic valves is disposed on the braking pipeline, and the electromagnetic valve is electrically connected to the braking controller. The distributed braking system provided by the invention has double functions including manpowerfailure backing-up and shaft pressure balancing, so the automobile under intelligent driving can travel stably with high reliability during braking.

Description

technical field [0001] The invention relates to the technical field of automobile braking systems, in particular to a distributed braking system with failure backup and a braking pressure vector control method thereof. Background technique [0002] Automobile braking system is closely related to automobile driving safety. In the hydraulic braking system of traditional automobiles, the driver applies braking pressure to the wheel cylinders of each wheel brake by depressing the brake pedal, so as to achieve braking and decelerate the vehicle. Smart car systems such as advanced driver assistance systems (ADAS) and automated driving systems (ADS) require braking systems that can autonomously brake the vehicle, that is, apply the brakes to some or all of the wheels without depressing the brake pedal. At present, most of the brake systems that can implement autonomous braking use electric power assist, and retain brake control devices such as brake pedals. With the development o...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects of the existing technology that lacks the electronic control failure protection function and the axial pressure equalization function, and to provide a braking pressure vector control method of a distributed braking system with failure backup

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