VARIABLE WEDGE STRUCTURE OF ELECTRONIC WEDGE BRAKE AND DEVICE AND METHOD FOR VARYING WEDGE ANGLE

摘要

The present invention relates to a device for varying the wedge angle of an electronic wedge brake (EWB) including: a movable wedge having an inclined surface; and a counter wedge having an inclined surface disposed to face the inclined surface of the movable wedge and disposed to face the movable wedge. The device for varying the wedge angle of an EWB according to an embodiment of the present invention comprises: a friction coefficient estimation unit for estimating a friction coefficient between a pad and a disk of an EWB; a wedge angle command unit for calculating a wedge angle command value based on the estimated friction coefficient; and a wedge control unit for adjusting a wedge angle according to the calculated wedge angle command value. The device for varying the wedge angle of an EWB according to the present invention can maintain high braking efficiency of the EWB regardless of a change in the friction coefficient between the pad and the disk of the EWB.;COPYRIGHT KIPO 2016