Integrated sub master cylinder wire control hydraulic brake system
A hydraulic braking, wire-controlled technology, applied in the direction of brakes, wire-controlled brakes, brake transmission devices, etc., can solve the problems of brake pressure fluctuation, large pressure build-up accuracy, slow brake pressure, etc., to achieve weight reduction and stability. The effect of good sex and convenient layout
Active Publication Date: 2018-04-13
JILIN UNIV
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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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[0050] The present invention is described in detail below in conjunction with accompanying drawing:
[0051] refer to figure 1 , the present invention includes a brake start unit, a brake master cylinder 3, a brake sub-master cylinder unit, a solenoid valve unit, an electronic control unit and a brake.
[0052] refer to figure 2 , the brake activation unit includes a brake pedal 1 , a pedal displacement sensor 2 , and an input push rod 22 .
[0053] The pedal displacement sensor 2 can be selected as a potentiometer type displacement sensor or a Hall type displacement sensor.
[0054] The right end of the brake pedal 1 and the input push rod 22 is connected by a pin shaft, so that the input push rod 22 can move with the rotation of the brake pedal 1 . The input push rod 22 is fixedly connected with the first piston 21 of the master cylinder in the brake master cylinder unit through threads.
[0055] The pedal displacement sensor 2 is fixedly installed on the input push rod...
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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...
Claims
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IPC IPC(8): B60T13/74B60T7/04
CPCB60T7/042B60T13/745B60T2270/82
Inventor 李静王晨孙禄刘鹏夏承贺韩紫云
Owner JILIN UNIV
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