US4871954A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Actuating means for a flap in motor vehicles
Assignee: Bayerische Motoren Werke AG
•
Filing: 1984-02-09
•
Granted: 1989-10-03
•
Expires: 2004-02-09
Abstract
Abstract An actuating mechanism for a flap in motor vehicles which, by means of an electric step motor, adjusts the flap between two end positions determined by limit stops to selectable intermediate positions corresponding to a regulating command. In order to compensate step losses, the regulating command, when the flap is adjusted in one end position, corresponds to an adjustment that exceeds the magnitude of the command this end position.
Inventors
- 👤 Gerhard Rathgeber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:51
CPC Classifications
B; B60; B60K; B60K26/00; B60K26/04; B60H; B60H1/00; B60H1/00642; B60H1/00814; B60H1/00821; B60H1/00835; B60H1/00857; G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/19; G05B19/40; G05D; G05D3/00; G05D3/12; G05D3/14; G05D3/18
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
134 words
An actuating mechanism for a flap in motor vehicles, having an electric step motor for adjusting the flap between two end positions fixed by limit stops, the flap being adjustable to a desired position corresponding to a regulating command, further comprising: means for transmitting a command signal to the step motor, the magnitude of the signal exceeding the magnitude which would be necessary to adjust the flap to a first one of said end positions; and wherein at the time of the initial switching-on of the mechanism, the means for transmitting transmits a said command signal to the step motor to adjust the flap to said first one of said end positions which is closest to the desired position and subsequently to adjust the flap to the desired position intermediate the two end positions.
Claim 2
Dependent Claim
134 words
An actuating mechanism for a flap in motor vehicles, having an electric step motor for adjusting the flap between two end positions fixed by limit stops, the flap being adjustable to a desired position corresponding to a regulating command, further comprising: means for transmitting a command signal to the step motor, the magnitude of the signal exceeding the magnitude which would be necessary to adjust the flap to a first one of said end positions; and wherein at the time of the initial switching-on of the mechanism, the means for transmitting transmits a said command signal to the step motor to adjust the flap to said first one of said end positions which is closest to the desired position and subsequently to adjust the flap to the desired position intermediate the two end positions.
Claim 3
Dependent Claim
52 words
An actuating mechanism according to claim 1 wherein the means for transmitting serves to adjust the flap to a second one of said end positions by transmitting a signal, the magnitude of which exceeds the magnitude which would be necessary to adjust the flap to the second one of said end positions.
References Cited (Backward Citations)
GB606899A
Cited
DE1763924A1
Cited
SU456257A1
Cited
US3755727A
Cited
US4401928A
Cited
GB2072379A
Cited
JPS58203521A
Cited
GB2130758A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-10-02 | 1993-04-03 | 1993-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-02 | 1997-04-03 | 1997-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-02 | 2001-04-03 | 2001-10-03 | $7700.00 | Window Closed / Lapsed |