Instruction generator for controlling the position of an element, in particular a sliding opening element of an automobile vehicle
US4940926A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 12, 1988 |
| Grant date | Jul 10, 1990 |
| Priority date | — |
| Expiry date | Dec 12, 2008 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/55
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The generator comprises means (2) for adjusting and an associated calculator, the adjusting means (2) comprising an endless rotative knob (4) capable of rotating through a given angle of which the position of the element to be controlled is a direct function, and pulse generating means (15, 17) generating a number of pulses which is proportional to the angle of rotation of the knob (4) and means for counting said number, and a selector of the direction of rotation. The calculator is programmed to determine, from the number of pulses counted, a proportion of the path the movable element must travel through realtive to end-of-travel means. The instruction determined by the calculator is then transmitted to a motor driving the movable element and to a position copying device. The invention permits obtaining a fine continuous, or substantially continuous, adjustment by a simple rotation of the knob. Application in particular to the control of opening elements of automobile vehicles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.