Electronic control unit
US9740254B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 2, 2015 |
| Grant date | Aug 22, 2017 |
| Priority date | — |
| Expiry date | Oct 2, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/3209
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An electronic control unit includes a microcomputer and a power circuit that supplies an electric power to the microcomputer. The microcomputer and the power circuit respectively operate in a normal operation mode and in a low power operation mode that consumes less power than the normal operation mode. The electronic control unit further includes a mode switcher for switching the operation modes of the microcomputer and the power circuit according to an input signal from an external device. When a mode switch signal for switching the operation mode of both devices to the normal operation mode, the mode switcher first switches the power circuit to the normal operation mode and subsequently switches the microcomputer to the normal operation mode, which prevents a reset operation of the microcomputer without using a large capacity capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.