A Novel Electronic Wedge Brake Based on Active Disturbance Rejection Control

The electronic wedge brake system (EWB) used in the automotive industry is a new structure designed for brake-by-wire systems. This paper proposes novel EWB which mainly composed of screw-driven wedged inner pad, fixed outer caliper-flexible rotor and hybrid stepper motor. proposed does not have planetary gear set or ball screw mechanism, it simplified existing to take advantage self-interlocking ability mechanism hold brakes with zero-overhauling self-energizing pad reduce braking effort. In phase, driven forces flexible against flat pad. elastically deformed make contact Except applied force, friction force between exerts additional as pulled along direction rotation, thus requiring lower actuation force. this paper, active disturbance rejection control (ADRC) algorithm introduced improve response stability EWB. Simulations are performed demonstrate effectiveness ADRC controller system.