Vehicle diagnosis system having transponder for OBD III
US6225898A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 1999 |
| Grant date | May 1, 2001 |
| Priority date | — |
| Expiry date | May 3, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C5/008
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A vehicle diagnosis system can handle with OBD III as well as OBD II by only adding a transponder to an OBD II system. The vehicle diagnosis system includes an engine ECU for controlling an engine device such as injector and storing a diagnosis data, a K-line connected to the engine ECU, a transponder connected to the K-line, and a connector connected to the K-line for detachably connecting an external scan tool that reads the diagnosis data stored in the engine ECU. The transponder receives a request from a receiver system by radio, reads the diagnosis based on the request, and sends the read diagnosis data to the receiver system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.