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Patent Searching and Data


Title:
CONTROL APPARATUS
Document Type and Number:
WIPO Patent Application WO/2020/217740
Kind Code:
A1
Abstract:
A rear electric brake ECU is provided with a delaying element. More specifically, the delaying element is disposed between an arithmetic element of the rear electric brake ECU and a first switching element (FET) that drives a solenoid of a parking mechanism. The delaying element delays a signal for driving the first switching element. The rear electric brake ECU is further provided with a diagnostic device for providing a diagnostic of the operational condition of the arithmetic element. The diagnostic device is configured to, in the case when the operational condition of the arithmetic element is diagnosed to be abnormal, cut off supply of electricity to the solenoid irrespective of the state of the signal (driving signal) of the solenoid.

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Inventors:
GOTO DAISUKE (JP)
FUJITA HARUHIKO (JP)
Application Number:
PCT/JP2020/009961
Publication Date:
October 29, 2020
Filing Date:
March 09, 2020
Export Citation:
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Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
B60T17/22; B60T13/74; H01F7/18
Foreign References:
JP2006232259A2006-09-07
JP2015211168A2015-11-24
JP2008296849A2008-12-11
JPH03255252A1991-11-14
JP2014061829A2014-04-10
Attorney, Agent or Firm:
ONO, Shinjiro et al. (JP)
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