Vehicular electronic control system, and electronic control unit, program, and storing member for the same
US6799106B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2003 |
| Grant date | Sep 28, 2004 |
| Priority date | — |
| Expiry date | Oct 14, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R16/0232
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicular electronic control system includes multiple electronic control units (ECUs) to which a tester is connectable for diagnosis. Each ECU stores a vehicle identifying number (VIN) code that is transmitted to the tester for providing various kinds of information on a vehicle. A priority level is assign to each ECU so that the ECUs transmit the VIN code in order of precedence when the ECU having higher priority is unable to transmit the VIN code when another ECU has not transmitted the VIN code. Moreover, each ECU monitors a communication line when received a VIN code transmission request from the tester and detects an output indicative the VIN code sent from another ECU to the tester. When the ECU has detected the output, it terminates the VIN code transmission and do not transmits the VIN code to the tester.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.