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1. (WO2017038685) OPERATION SWITCH AND PARKING BRAKE CONTROL DEVICE

Pub. No.:    WO/2017/038685    International Application No.:    PCT/JP2016/074985
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Sat Aug 27 01:59:59 CEST 2016
IPC: B60T 17/22
B60T 7/02
Applicants: HITACHI AUTOMOTIVE SYSTEMS, LTD.
日立オートモティブシステムズ株式会社
Inventors: KAWAI, Hiroaki
河合 洋明
MATSUBARA, Kenichiro
松原 謙一郎
Title: OPERATION SWITCH AND PARKING BRAKE CONTROL DEVICE
Abstract:
Provided is an operation switch and parking brake control device with a simple configuration capable of indicating a required operation mode, and hence, detecting the operation mode and failure. The operation switch for indicating actuation of an electric parking brake mechanism is provided with: two input terminals and two output terminals; a pair of two wires provided between the input terminal and the output terminal for each pair of input terminals and output terminals among the two input terminals and the two output terminals; a first switch provided to the input terminal or output terminal and that switches connection between two wires in accordance with an actuation instruction; and a second switch connected to one wire, among the two wires, which connects the input terminal and the output terminal when the operation instruction in the first switch is set in a disabled mode, and that switches connection between the two output terminals or two input terminals in accordance with the operation instruction. Resistances of mutually different values are provided to at least one wire, or the other wire other than the one wire among the pair of two wires.