Vehicle diagnostic system, vehicle diagnostic method, and external diagnostic device
US9245393B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2012 |
| Grant date | Jan 26, 2016 |
| Priority date | — |
| Expiry date | Nov 30, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
In a vehicle diagnostic system and a vehicle diagnostic method, malfunction codes recorded in each ECU in a vehicle include idle stop malfunction codes that disallow idle stop, and a non-idle stop malfunction code that does not disallow idle stop. The idle stop malfunction codes include: a first idle stop malfunction code that operates a warning light provided corresponding to a specific ECU; and a second idle stop malfunction code that does not operate the relevant warning light. An external diagnostic device extracts, from the plurality of ECUs, only the second idle stop malfunction codes, among the first idle stop malfunction codes and the second idle stop malfunction codes, when performing malfunction diagnosis for non-execution of idle stop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.