Automatic exhaust device and method for integrated electro-hydraulic brake system

Abstract

The invention discloses an automatic exhaust device of an integrated electro-hydraulic brake system, which comprises an integrated electro-hydraulic brake, a hydraulic cylinder, a first electromagnetic valve, a travel sensor, a hydraulic motor, a brake wheel cylinder, a flow distributing and collecting valve, a second electromagnetic valve, a bubble detector and a controller, the integrated electro-hydraulic brake comprises a hydraulic unit, a liquid storage tank, a main cylinder push rod and a motor, a brake master cylinder, a master cylinder, a plurality of integrated electro-hydraulic brake electromagnetic valves and a hydraulic pipeline are integrated in the hydraulic unit, and the brake master cylinder and the master cylinder are decoupled. The invention further discloses an automatic exhaust method of the integrated electro-hydraulic brake system. Aiming at the problem that air in a hydraulic pipeline is difficult to exhaust completely due to decoupling of a brake main cylinder and a driving cylinder of an integrated electro-hydraulic brake system, automatic and thorough exhaust of the integrated electro-hydraulic brake system is realized by controlling a hydraulic cylinder, a motor and an integrated electro-hydraulic brake electromagnetic valve; and a perfect solution is provided for automatic exhaust of a completely-decoupled integrated electro-hydraulic brake system.

Description

Technical field[0001]The invention belongs to the exhaust method of braking system, and more particularly to an automatic exhaust device and an exhaust method of an integrated electro-hydraulic brake system.Background technique[0002]At present, with the continuous development of automobile intelligence and electric technology, traditional vacuum boost brake systems are difficult to meet the requirements of smart vehicles and electric vehicles on brake systems, so they are gradually replaced by new integrated electro-hydraulic brake systems. The frequent work of the brake system will result in the entry of air. Once air occurs in the hydraulic line, the brake pressure is lowered or even causes the braking failure, and there is a huge safety hazard. The traditional exhaust method is that one person steps on the brake pedal to the lowest end, and the other person unscrew the defiberous bolts on the brake wheel, release a certain amount of brake fluid and gas, and then tighten bolts, lo...

AI Technical Summary

Problems solved by technology

[0005] For this reason, the present invention aims to provide an integrated electro-hydraulic brake system automatic exhaust device and exhaust method, which can realize automatic exhaust for a fully decoupled integrated electro-hydraulic brake system and solve the problem of traditional exhaust methods. It requires two people to cooperate at the same time, which is time-consuming and laborious, the exhaust is not complete, and the bolts need to be loosened and tightened frequently, which affects the service life of the wheel cylinder

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