Electronic control device and diagnosis method of electronic control device
US12080112B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2020 |
| Grant date | Sep 3, 2024 |
| Priority date | — |
| Expiry date | Mar 25, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R16/0232
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Provided is an electronic control device including a timer that operates during a key-off time period, the electronic control device having high reliability to diagnose whether the timer is normally operated even during the key-off time period. The electronic control device includes a first power supply unit to which a battery voltage is always supplied as a power supply voltage, the first power supply unit including a first timer that measures a key-off time period, a diagnostic timer different from the first timer, and a first timer diagnosis unit that compares a timer value of the first timer with that of the diagnostic timer during the key-off time period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.