Apparatus and method for protecting starter for engine against overheating
US6960897B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2001 |
| Grant date | Nov 1, 2005 |
| Priority date | — |
| Expiry date | Feb 10, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02N2200/063
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method and an apparatus for protecting an engine starter of a motor vehicle against overheating with enhanced reliability by controlling turn-on/off of the starter in dependence on a conducting current of the starter, a starter temperature and an ambient temperature. The apparatus includes a voltage detecting system (1) for measuring a supply voltage (Vs) of the engine starter, a voltage waveform information detecting system (11) for detecting at least one of frequency information and amplitude information of a waveform representing variation of the supply voltage (Vs) as voltage waveform information (T), an a conduction time control system (12, 12A) for controlling a conduction time period of the engine starter in accordance with the voltage waveform information (T).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.