Drive device and method for moving a vehicle part
US6597139B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 2, 2001 |
| Grant date | Jul 22, 2003 |
| Priority date | — |
| Expiry date | Jul 2, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H7/093
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a process for adjusting a motor vehicle part between at least two positions and a drive device for executing this process. The motor vehicle part is driven by an electric motor, and a pulse signal is generated according to the rotary motion of the electric motor which is supplied to a control unit for controlling the electric motor, in which at certain instants the value for the current force acting on the motor vehicle part is determined from the pulse signal. This value of the force is used as the criteria in the decision whether the electric motor is to be turned off or reversed [or not]. Before connection of the electric motor to the motor vehicle part measurements are taken on the electric motor for determining the individual motor characteristics, the measured values determined in this way are used in the determination of the value of the action of force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.