Electronic control unit, in particular for a device provided in a motor vehicle
US6308121A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 23, 1997 |
| Grant date | Oct 23, 2001 |
| Priority date | — |
| Expiry date | Sep 23, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/81
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A control unit, in particular for a device provided in a motor vehicle, has a computer, a first volatile data memory and a second nonvolatile data memory connected to a temperature sensor. During operation, variable data are transmitted from the first to the second data memory. Information regarding the temperature of the nonvolatile data memory is supplied by the temperature sensor to the computer. Data from the volatile data memory are copied to the nonvolatile data memory only when the temperature that has been signaled falls below a predetermined value. Data are read from the nonvolatile data memory up to an upper temperature limit which lies above the predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.