ELECTRIC BRAKE SYSTEM

摘要

An electric brake system is provided which includes an electric brake having a friction pad which is pressed against a brake disk by an electric motor, and a controller. The controller is configured to receive detection outputs from a load detector for detecting a load applied to the brake disk (7), the brake pedal, and a vehicle speed detector, and to control the electric motor based on the outputs received. In particular, when the vehicle speed detector detects that the vehicle is at a stop, the controller compares the outputs of the brake pedal and of the load detector, and if the difference therebetween, if any, is within the width of a dead band, the controller does not change, and thus maintains, the braking load even if the brake pedal is operated.

主权项

1. An electric brake system comprising:
an electric brake including a rotary shaft configured to be driven by an electric motor, a friction pad, a linear motion mechanism configured to convert a rotation of the rotary shaft to a liner motion of the friction pad, thereby pressing the friction pad against a brake disk; and a control means configured to receive a detection output of a load detecting means for detecting a load applied to the brake disk, a brake load command output from a brake pedal, and a detection output of a vehicle speed detecting means for detecting a vehicle speed, and to control the electric motor based on the outputs received,
wherein the control means is provided with a dead band within which a brake load applied by the linear motion mechanism does not change even if the load command output from the brake pedal is deviated from the detection output of the load detecting means, when it is detected that a vehicle is at a stop based on the detection signal of the vehicle speed detecting means.