Microprocessor system for controlling or regulating at least partly safety-critical processes
US9529681B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2006 |
| Grant date | Dec 27, 2016 |
| Priority date | — |
| Expiry date | Aug 27, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1048
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A microprocessor system (50) for controlling or regulating at least partly safety-critical processes, comprising two central processing units (1, 2) integrated in a chip housing, a first and a second bus system, at least one full memory (7) on the first bus system, at least one test data store (51) on the second bus system, which has a reduced store coverage compared to the full memory on the first bus system and in which test data are stored which are connected to data of the memory (7) on the first bus system, and the bus systems comprise comparison and/or driver components which allow the data interchange and/or comparison of data between the two bus systems, and a hardware test data generator (4) is arranged at least on the second bus system, in which case at least part of the full memory on the first bus is additionally backed up using another test data store (5) and test data on the first bus. The invention further relates to the use of the above microprocessor system in motor vehicle controllers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.