Cut-off of a motor vehicle starter
US5970936A · kind A · utility
12Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 1997 |
| Grant date | Oct 26, 1999 |
| Priority date | — |
| Expiry date | Sep 25, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02N2200/063
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The power supply to a starter of a motor vehicle engine is cut off when the power supply voltage to the starter reaches a threshold value. On closing of the starter power contacter, a time window is commenced, and during this time window the maximum value assumed by the supply voltage is measured. The threshold value is determined as a function of the maximum value measured during this time window, and may also be a function of the value of the supply voltage prior to initiation of the starting process, and/or a function of operating temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.