Control unit for vehicle
US9328711B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 23, 2012 |
| Grant date | May 3, 2016 |
| Priority date | — |
| Expiry date | Oct 16, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.