Method for detecting a motor vehicle battery failure
US6472875B1 · kind B1 · utility
34Cited by
10References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 26, 2000 |
| Grant date | Oct 29, 2002 |
| Priority date | — |
| Expiry date | May 26, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/3647
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A process for the detection of a defect of an automotive vehicle battery includes analyzing the time dependence of the discharge voltage across the terminals of the battery. This process has the steps of measuring at least two successive values of the discharge voltage of the battery, during the phase of cranking the engine of the automotive vehicle, for at least two consecutive top dead center points, taking a difference of the measured voltage values, and deducing therefrom whether the battery is charged or defective. The process is built into an electronic computer carried on board the automotive vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.