Electronic control unit for use in a vehicle
US8185253B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2009 |
| Grant date | May 22, 2012 |
| Priority date | — |
| Expiry date | Jan 30, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F8/65
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A first microcomputer in an ECU outputs a CID of the ECU in response to a request from a scan tool when the ECU has multiple microcomputers implemented therein. Each of the multiple microcomputers has an additive value stored therein for counting an update of the software. The additive values from the multiple microcomputers are added as a sum total of the ECU that is further added to a CID base value. The sum total of the ECU added to the CID base value is then output as the CID of the ECU from the first microcomputer to the scan tool. Therefore, information stored in the first microcomputer is not necessarily changed for outputting an updated CID (e.g., software product number information) from the ECU.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.