Failure diagnostic system and electronic control unit for use in diagnosing failure of vehicle
US6728611B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 12, 2002 |
| Grant date | Apr 27, 2004 |
| Priority date | — |
| Expiry date | Sep 12, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C5/008
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A center stores functional modification information and failure information, which are associated with each other. The modification information is used to store specified vehicle data at specified time. A terminal device transmits failure information to the center and receives analytic information, which includes the corresponding modification information, from the center. Then, the terminal device inquires a software product number of a control program, which includes a diagnostic program, to an ECU and receives a corresponding data assignment table, which corresponds to the software product number, from the center. The terminal device converts the modification information to a form, which is interpretable by the control program, through use of the assignment table and transmits it to the ECU. In the ECU, the modification information is stored in a form of tables, and the diagnostic program is executed to store the vehicle data based on the modification information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.