Integrated control system of braking anti-lock braking system and electronic parking braking system

Abstract

The invention discloses an integrated control system of a braking anti-lock braking system and an electronic parking braking system, and relates to the technical field of automobile intelligent driving. The system comprises an electronic control unit and a hydraulic unit, wherein the electronic control unit is in bidirectional signal connection with the hydraulic unit; the electronic control unitcomprises an MCU controller, a wheel speed processing module, a hydraulic processing module and an acceleration processing module; the MCU controller is connected with a power supply, a parking control switch, a caliper motor, a wheel speed sensor and a hydraulic sensor through electric signals; the MCU controller comprises an acceleration sensor and a current and voltage sensor; the accelerationsensor is used for measuring the acceleration of wheels; and the current and voltage sensor is used for measuring the current and voltage of the caliper motor. According to the invention, the parkingbraking response time is effectively shortened, two original control systems are integrated into one control system, and the cost is reduced while the intelligent performance of the system is improved.

Description

technical field [0001] The invention relates to the technical field of automobile intelligent driving, more specifically, it relates to an integrated control system of an anti-lock brake system and an electronic parking brake system. Background technique [0002] Anti-lock brake system (antilock brake system) referred to as ABS. The system distributes the brake fluid of a certain pressure input by the master cylinder to realize the pressure maintaining and pressure releasing actions of the four wheel cylinders. Its working principle is to control through the logic threshold value, set the threshold value according to the vehicle slip rate and wheel acceleration, and adjust the wheel cylinder pressure to prevent the vehicle from locking during braking and ensure the maximum adhesion between the wheel and the ground. value. Electronic parking brake system (Electrical Park Brake) referred to as EPB. The parking brake module judges the state of the vehicle based on wheel spee...

AI Technical Summary

Problems solved by technology

[0003] However, in the field of automotive intelligent driving, the controllers of most ABS and EPB are independent of each other, which is difficult to meet the requirements of intelligent driving and safety redundancy, and urgently needs to be improved.

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