Brake actuating mechanism integrating car motor braking and electromagnetic braking

Abstract

The invention relates to the technical field of car braking, in particular to a brake actuating mechanism integrating car motor braking and electromagnetic braking. The brake actuating mechanism comprises an electromagnetic clutch, a regeneration motor, an electromagnetic brake, a planetary gear mechanism, a cooling fan and the like. The electromagnetic brake and the regeneration motor are integrated into a whole. When a car is braked, an electronic control unit preferentially controls connection of the electromagnetic brake, car wheels drives a rotor of the regeneration motor to rotate through the planetary gear mechanism and the electromagnetic clutch, car braking energy is converted into electric energy, and braking torque is provided. When the braking torque provided by the regeneration motor is insufficient, the electronic control unit preferentially controls the electromagnetic brake to work. A traditional friction braking device is omitted, the brake actuating mechanism has the advantages of being compact in structure, convenient to arrange, good in dynamic characteristic, easy to control integrally and the like, the braking energy recovered by the regeneration motor can directly drives the electromagnetic brake to work, the generated braking torque can share car braking loads, and thus energy consumption caused by work of the electromagnetic brake is reduced.

Description

technical field [0001] The invention relates to the technical field of vehicle braking, in particular to an integrated braking actuator of automobile motor braking and electromagnetic braking. 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 Inadequacies such as other system integration control are not suitable for the development requirements of automobile, especially electric vehicle chassis integration control. [0003] The electronically controlled braking system realizes the decoupling of the braking ...

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, the integrated brake actuators of automobile motor brake and electromagnetic brake have rarely been mentioned.

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