Method of detecting and documenting exhaust-gas relevant malfunctions of a vehicle
US5797375A · kind A · utility
2Cited by
6References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 26, 1997 |
| Grant date | Aug 25, 1998 |
| Priority date | — |
| Expiry date | Feb 26, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M15/102
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention is directed to a method for detecting and documenting exhaust-gas relevant malfunctions of a vehicle having an internal combustion engine. The method includes the steps of evaluating the operating state of at least one component of the internal combustion engine in a circuit arrangement to delimit faults, which are caused by improper operation of the vehicle, relative to faults based on defects of the vehicle system; and, outputting a fault announcement and storing the fault announcement in a fault memory in dependence upon the operating state of the component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.