Method and unit for controlling electrical devices of an automotive vehicle
US11579638B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 22, 2017 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Mar 3, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R16/03
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method for controlling an item of electrical equipment of a motor vehicle including a device for controlling the item of equipment including a microcontroller, which is configured to generate an AC electrical signal for controlling the item of equipment characterized by its duty cycle, and a driver interface that is characterized by a maximum operating temperature threshold beyond which the driver interface is inoperative. The method includes determining the internal temperature of the driver interface, comparing the determined internal temperature with a first predetermined warning threshold and decreasing the duty cycle of the electrical signal when the first warning threshold has been exceeded so as to limit the power of the electrical signal and thus to keep the internal temperature of the driver interface below its maximum operating temperature threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.