Invention Grant
- Patent Title: Electromagnetic load drive device and in-vehicle control system
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Application No.: US16073636Application Date: 2017-01-10
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Publication No.: US10770886B2Publication Date: 2020-09-08
- Inventor: Kentarou Jyumonji
- Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
- Applicant Address: JP Ibaraki
- Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
- Current Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
- Current Assignee Address: JP Ibaraki
- Agency: Volpe and Koenig, P.C.
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@687859ad
- International Application: PCT/JP2017/000364 WO 20170110
- International Announcement: WO2017/130669 WO 20170803
- Main IPC: H02H3/22
- IPC: H02H3/22 ; H03K17/00 ; H03K17/082 ; G05F1/56 ; G01R19/165 ; H02H1/00 ; H01H47/00 ; H01F7/18
Abstract:
To provide an electromagnetic bad driving device capable of performing failure diagnosis of a relay more frequently. The electromagnetic bad driving device according to the present invention, interrupts the relay while an electromagnetic induction bad is under control, and diagnoses the relay on the basis of a surge voltage occurring at the interruption.
Public/Granted literature
- US20190036325A1 ELECTROMAGNETIC LOAD DRIVE DEVICE AND IN-VEHICLE CONTROL SYSTEM Public/Granted day:2019-01-31
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