Internal combustion engine control system for vehicle and control method thereof
US6975046B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 31, 2002 |
| Grant date | Dec 13, 2005 |
| Priority date | — |
| Expiry date | May 1, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P9/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An internal combustion engine control system for vehicle prevents an electronic device from being damaged due to over-voltage failure of a generator, and enables the vehicle to continue to travel. Over-voltage failure of a vehicle generator (3) is detected from a voltage generated by the vehicle generator (3) and a voltage of a battery (4). When detecting any over-voltage failure, a maximum engine speed limiting apparatus (13) for preventing over speed of an internal combustion engine (1) is controlled to suppress the engine speed. Any electric load that consumes a relatively large current and does not make the traveling dangerous such as headlight (5) or heater heating wire (6) is applied to suppress the over-voltage. The electric load to be applied is increased or decreased depending on magnitude of the over-voltage. Thus the vehicle can continues traveling even if any over-voltage failure occurs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.