Integrated sub master cylinder wire control hydraulic brake system

Abstract

The invention discloses a wire-control hydraulic braking system with an integrated vice master cylinder. The problems that the integration level is low, the braking pressure is relatively slowly set up by a motor, brake pressure variation is large, and pressure setting up accuracy is low are solved. The wire-control hydraulic braking system comprises a braking starting unit, a braking master cylinder, a braking vice master cylinder unit and an electromagnetic valve unit; the braking vice master cylinder unit comprises a motor and the braking vice master cylinder; the electromagnetic valve unit comprises a first two-position three-way electromagnetic valve, a second two-position three-way electromagnetic valve, a fifth constantly-open electromagnetic valve, a second constantly-close electromagnetic valve and a third constantly-close electromagnetic valve; the braking starting unit is connected with a first piston of a master cylinder body of the braking master cylinder through an input push rod of the braking starting unit; the braking master cylinder is in pipeline connection with the electromagnetic valve unit through the fifth constantly-open electromagnetic valve; the braking vice master cylinder is in pipeline connection with the electromagnetic valve unit through the first two-position three-way electromagnetic valve, the second two-position three-way electromagnetic valve, the second constantly-close electromagnetic valve and the third constantly-close electromagnetic valve; and the motor and the braking vice master cylinder are connected with a first vice master cylinder piston through an output shaft in the motor.

Description

technical field [0001] The present invention relates to a hydraulic braking system, more precisely, the present invention relates to a line-controlled hydraulic braking system with an integrated auxiliary master cylinder and a control method thereof. Background technique [0002] With the development of technology, cars have become an indispensable means of transportation for people to travel. The vigorous development of the automobile industry has made people pay more and more attention to the safety of automobiles. The braking system of the automobile is an important part of the chassis of the automobile, and the good braking performance of the automobile is a necessary condition for realizing the safety of the automobile, so people have carried out in-depth research and exploration on the braking system of the automobile. With the rapid development of automotive electronic technology and the maturity of control technology, people have higher expectations for braking perf...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the problems existing in the prior art that the integration degree is relatively low, the braking pressure established by the motor is relatively slow, the braking pressure fluctuates greatly and the pressure building accuracy is poor, and provides a Integrated sub master cylinder wire control hydraulic brake system

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