Method and apparatus for the thermal control of an electric motor in a vehicle, and their application to a power assisted steering system
US5525881A · kind A · utility
19Cited by
9References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 10, 1995 |
| Grant date | Jun 11, 1996 |
| Priority date | — |
| Expiry date | Apr 10, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S388/934
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The electric motor is part of an electro-mechanical actuating system that is especially applicable to power assisted automotive steering systems. A phase for monitoring the cooling of the electric motor is carried out when the motor is inoperative in order to produce a value for a restarting temperature. This value is used during an electrical motor thermal control phase when the motor is operative. This prevents the motor from exceeding a maximum permissible temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.