Engine power trouble detecting method and apparatus by checking actual engine power condition
US5365445A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 7, 1991 |
| Grant date | Nov 15, 1994 |
| Priority date | — |
| Expiry date | Aug 7, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M15/044
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In an engine power trouble detecting apparatus, an abnormal condition occurring in power or torque of an engine of a vehicle is detectable, The detecting apparatus comprises: a first unit for predicting a power value derived from the engine of the vehicle driven under normal state based upon at least a revolution value of the engine and also an air intake amount thereof; a second unit for calculating an actual power value of the engine based upon at least a power value produced from a power shaft of a manual power transmission system; and also a third unit for comparing the predicted power value with the calculated actual power value so as to detect the abnormal condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.