Method for protecting an electronic switch incorporated in an automotive vehicle, for controlling the power supply of an electric load
US8625245B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Jul 2, 2010 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | Jan 13, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/082
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method for protecting an electronic switch incorporated in an automotive vehicle in order to control the power supply of an electric load, the method including implementing a protection strategy, based on the use of a table of overload intensity values IS, intended to make it possible to detect and count the overshoots of the overload values IS, and to interrupt the operation of the electronic switch beyond a given number of overloads undergone. A table of overload intensities IS is established giving, for values of the power supply voltage that are greater than a predetermined voltage value VNbat, values IS=IT+ΔIc, with ΔIc being identical for all the values, and for values of the power supply voltage that are less than or equal to VNbat, a constant value IS such that IS=IT(VNbat)+ΔIc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.