Automobile decoupling distributed braking system pure electric brake actuator

Abstract

The present invention relates to the technical field of vehicle braking, a pure electric braking actuator of a decoupled distributed braking system for automobiles, comprising a brake disc, an electromagnetic clutch, an electromagnetic brake, a battery pack and an electronic control unit, the electromagnetic clutch Both the input shaft and the input shaft of the electromagnetic brake are connected to the brake disc, and the driven part of the electromagnetic clutch is connected to a regenerative motor; the battery pack is electrically connected to the electromagnetic clutch and the electromagnetic brake, and the electronic control unit is used to control the electromagnetic clutch The connection between the battery pack and the circuit between the electromagnetic brake and the battery pack; the regenerative motor is electrically connected to the battery pack, and the electronic control unit is used to control the regenerative motor to charge the battery pack or control the A battery pack supplies power to the regenerative motor. The traditional friction brake device is canceled, the dynamic response performance is good, and the layout is convenient. The regenerative motor can convert the braking energy into electric energy to directly drive the electromagnetic brake to work, and can share the braking load.

Description

technical field [0001] The invention relates to the technical field of vehicle braking, in particular to a pure electric braking actuator of an automobile decoupling distributed braking system. Background technique [0002] The braking system is one of the important components of the automobile chassis, which is directly related to the comprehensive performance of the automobile and the safety of life and property. Although the traditional hydraulic and pneumatic braking systems can meet the requirements of the existing braking regulations, there are complex pipeline arrangements, relying on vacuum booster devices, slow braking response speed, non-active adjustment of braking torque, and difficulty in matching Other deficiencies such as system integration control are not suitable for the development requirements of automobiles, especially electric vehicle chassis integration control. [0003] The electronically controlled braking system realizes the decoupling of the brakin...

AI Technical Summary

Problems solved by technology

However, most of the current EMB systems are single-motor actuators, which fail to make full use of the vehicle's braking energy to drive the friction brake, and cannot share the vehicle's braking load to reduce the wear of the friction brake pair.

Moreover, whether it is the EHB system or the EMB system, both belong to the friction braking method, and problems such as brake wear, friction dust, and brake thermal degradation will inevitably occur.

So far, pure electric brake actuators in automotive decoupled distributed braking systems have rarely been mentioned.

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