Hydraulic adjustment unit, braking system, vehicle and control method

Abstract

The application provides a hydraulic adjustment unit, a braking system, a vehicle and a control method, so as to improve the boosting efficiency of the braking system. This application is applicable to smart vehicles, self-driving vehicles, new energy vehicles or traditional vehicles, etc. Among them, the first hydraulic chamber (25) communicates with the third brake pipeline (130) and the fourth brake pipeline (140) respectively through the first brake pipeline (110), and the second hydraulic chamber (27) communicates with the third brake pipeline (130) through the The second brake pipeline (120) communicates with the third brake pipeline (130) and the fourth brake pipeline (140) respectively, and the third brake pipeline (130) and the fourth brake pipeline The first control valve (42) and the second control valve (32) are respectively set on (140) to control the on-off of the third brake pipeline (130) and the fourth brake pipeline (140), so that the first A hydraulic adjustment device (107) can provide braking force for the first group of wheels or the second group of wheels in a two-way pressurized manner.

Description

technical field [0001] The present application relates to the field of vehicles, and more particularly, to a hydraulic adjustment unit, a braking system, a vehicle and a control method. Background technique [0002] The braking system of a vehicle is a system that applies a certain braking force to the wheels of the vehicle to perform a certain degree of forced braking. The function of the braking system is to make the driving vehicle decelerate or even stop forcibly according to the requirements of the driver or the controller, or to make the stopped vehicle stably park under various road conditions (for example, on a slope), or to make the The speed of a vehicle traveling downhill remains constant. [0003] As a popular braking system, an electro-hydraulic brake (EHB) usually includes a dual-circuit braking system and a distributed braking system. Among them, for the dual-circuit braking system, the hydraulic adjustment device is used to provide braking force for the fir...

AI Technical Summary

Problems solved by technology

[0006] However, in the above-mentioned dual-circuit braking system, when the brake circuit where the first group of wheels is located or the brake circuit where the second group of wheels is located, after the brake fluid leaks, the hydraulic adjustment device with two-way pressurization function can no longer pass through the positive direction. The two supercharging processes of supercharging and reverse supercharging provide braking force for the normal working brake circuit, which limits the efficiency of the hydraulic adjustment device with bidirectional supercharging function for supercharging the normal working brake circuit

Images