公开(公告)号：US20180093648A1

公开(公告)日：2018-04-05

申请号：US15282145

申请日：2016-09-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Brandon C. Pennala ,  Alan J. Houtman ,  Paul A. Kilmurray ,  Christopher C. Chappell ,  Grant A. Browning ,  Robert J. Payton, JR. ,  Jordan M. Krell

IPC: B60T7/06 ,  B60T7/04

CPC classification number: B60T7/06 ,  B60T7/042 ,  B60T2270/82

Abstract: A brake pedal emulator extends and is connected between a support structure and a brake pedal along a centerline. The emulator includes a hydraulic cylinder, a piston head, and a variable flow communicator. An outer casing of the cylinder engages one of the structure and the pedal. The piston head engages the other of the structure and the pedal, and the communicator is carried between the casing and the piston head. A first chamber is defined at least in-part by the casing and a first side of the piston head, and a second chamber is defined at least in-part by the casing and an opposite second side of the piston head. The piston head is in sealed and slides with respect to the casing, and the communicator is adapted to provide fluid communication between the first and second chambers that varies with axial displacement of the piston head.