Electronic control device
US12319210B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2020 |
| Grant date | Jun 3, 2025 |
| Priority date | — |
| Expiry date | Dec 24, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J1/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Even when a power supply relay cannot be turned off and when power supply to a microcomputer is normally cut off, fixing of the power supply relay is detected. An electronic control device 100 according to an aspect of the present invention includes a relay drive circuit 13 that controls on and off of a power supply relay 12 according to information about the on and off of power supply, an electronic circuit (first power supply system block 110, microcomputer 102) that operates at a first power supply voltage (V1) supplied from a battery 10 through the power supply relay 12, and a monitoring unit (second power supply system block 120) that monitors the first power supply voltage when the power supply is turned off, and holds a monitoring result, the first power supply voltage reflecting presence or absence of fixing of the power supply relay.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.