Integrated brake master cylinder

Abstract

The invention discloses an integrated brake master cylinder, comprising an integrated master cylinder coupling part and an integrated master cylinder execution part, wherein the integrated master cylinder coupling part comprises a brake master cylinder; the integrated master cylinder execution part comprises a high pressure accumulator; the brake master cylinder outputs two paths of oil ways; one path of oil way is connected with a pedal simulator by a normally closed solenoid valve, and is provided with a pedal simulator sensor at the end where the pedal simulator is located; the other path of oil way is connected with an execution oil way at an input end of the high pressure accumulator by a normally open solenoid valve, and an output end of the high pressure accumulator is provided with a high pressure accumulator pressure sensor; the execution oil way at the input end of the high pressure accumulator is connected with an output oil way of the brake master cylinder by a switch normally closed solenoid valve, is divided into branched oil ways after passing through the switch normally closed solenoid valve, and is connected with a wheel brake cylinder by a linear liquid inlet solenoid valve; the execution oil way is provided with liquid outlet branched oil ways while being connected with the wheel brake cylinder. The integrated brake master cylinder can achieve the effect of rapid pressurization within the specified time, and can realize rapid and accurate wheel cylinder pressure control.

Description

technical field [0001] The invention belongs to automobile intelligent driving braking control technology, in particular to a brake master cylinder in an automobile braking system. Background technique [0002] In the context of the vigorous development of new energy vehicles, vehicles are developing from traditional internal combustion engine power to hybrid and pure electric drive. Cars that lose the power of the traditional internal combustion engine do not have a vacuum source to provide vacuum boost for the brake master cylinder during braking. In order to solve this problem, existing electric vehicles or hybrid vehicles will add a vacuum pump to the traditional booster as a vacuum. source. This method increases the cost on the one hand, and increases the inevitable working noise of the vacuum pump workers on the one hand. In addition, the traditional brake master cylinder only has the function of providing braking force and cannot meet the energy recovery function of...

AI Technical Summary

Problems solved by technology

This method increases the cost on the one hand, and increases the inevitable working noise of vacuum pump workers on the other hand.

In addition, the traditional brake master cylinder only has the function of providing braking force and cannot meet the energy recovery function of energy vehicles. In order to realize energy recovery, an energy recovery device must be installed, which increases the cost

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