Invention Grant
- Patent Title: Control unit for vehicle
- Patent Title (中): 车辆控制单元
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Application No.: US13658271Application Date: 2012-10-23
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Publication No.: US09328711B2Publication Date: 2016-05-03
- Inventor: Tetsuya Uchida
- Applicant: DENSO CORPORATION
- Applicant Address: JP Kariya, Aichi-pref.
- Assignee: DENSO CORPORATION
- Current Assignee: DENSO CORPORATION
- Current Assignee Address: JP Kariya, Aichi-pref.
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: JP2011-238901 20111031
- Main IPC: B60L1/00
- IPC: B60L1/00 ; B60L3/00 ; H02G3/00 ; F02N11/08 ; H01M10/46 ; H01M10/44 ; F02N11/10 ; G01R31/00
Abstract:
In a control unit for a vehicle, a redundancy circuit includes a main power source line, a back-up power source line, and a diode. The back-up power source line performs a voltage compensation operation when a voltage of the main power source line is lower than a predetermined voltage. The back-up power source line is turned on when a predetermined period of time has elapsed after the main power source line is turned on. The back-up power source line is turned off when a predetermined period of time has elapsed after the main power source line is turned off. The diode is disposed on the back-up power source line. The fault detector detects an open fault of the diode when a voltage of a cathode of the diode is lower than a predetermined threshold within the predetermined period of time after the main power source line is turned off.
Public/Granted literature
- US20130106174A1 CONTROL UNIT FOR VEHICLE Public/Granted day:2013-05-02
Information query
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