Method for controlling a safety-critical system which has a microcontroller
US7171582B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 20, 2002 |
| Grant date | Jan 30, 2007 |
| Priority date | — |
| Expiry date | Sep 13, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/206
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method for controlling a safety-critical system, in particular of a motor vehicle, which includes a microcontroller. The microcontroller controls and/or regulates the operating sequences of the safety-critical system, and the microcontroller is composed of a microprocessor and at least one peripheral microprocessor device. In a method for controlling a safety-critical system in which disruption to the operational reliability is to be prevented by changes in the molecular movement of the carrier of the microprocessor, the chip temperature of a chip which is provided with the microprocessor and peripheral device together is measured during an operating sequence and/or program sequence and compared with a maximum permitted chip temperature of the microcontroller. The operating sequence and/or the program sequence is controlled as a function of the temperature comparison.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.