Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Vehicle subsystem or accessory control
Reexamination Certificate
1999-08-20
2001-04-17
Cuchlinski, Jr., William A. (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Vehicle subsystem or accessory control
C701S049000, C318S139000, C318S286000
Reexamination Certificate
active
06219599
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to an apparatus and a method for electronic monitoring of a positioning drive arranged in a vehicle.
BACKGROUND INFORMATION
German Patent No. 40 20 351 describes a method for electronically monitoring and controlling the opening and closing operation of electrically driven units, where acceleration forces, in particular those acting in the vertical direction, are sensed by a sensor to be installed additionally.
German Patent No. 34 13 380 also describes an apparatus for opening and closing a convertible top of a vehicle. At a vehicle speed >3 km/h, an inhibition signal is generated which immobilizes the drive system of the convertible top. A vehicle-speed-dependent limit value for a closing force limiting system is not, however, known.
SUMMARY OF THE INVENTION
The apparatus and method according to the present invention for electronic monitoring of a positioning drive arranged in a vehicle has the advantage that the limit value of a closing force limiting system is adapted, via a speedometer signal, to the speed-dependent force and pressure conditions. It is thereby possible to counteract the closing force limiting system from being activated by forces that occur at high speeds, without jamming and without having to eliminate closing force monitoring. A further advantage is that of not needing to fall back upon a signal of a sensor to be installed additionally.
Simple to implement advantageously is the consideration of a binary state, i.e., whether the vehicle is moving or stationary.
Another exemplary embodiment provides for a quantized speedometer signal which supplies detailed information concerning the movement state of the motor vehicle.
The apparatus and method for electronic monitoring of a positioning drive arranged in a vehicle are preferably used in power windows, and prevent incorrect activations due to vibratory motions. In sun roofs, the speed-dependent closing force limiting system takes into account the changing pressure conditions in the lifting range, and thus also reduces the risk of improper activation.
REFERENCES:
patent: 4608637 (1986-08-01), Okuyama et al.
patent: 4736144 (1988-04-01), Hsu
patent: 4749193 (1988-06-01), Häcker
patent: 4870333 (1989-09-01), Itoh et al.
patent: 5084658 (1992-01-01), Nielsen et al.
patent: 5521474 (1996-05-01), Hahn
patent: 5747956 (1998-05-01), Lamm
patent: 34 13 380 (1985-10-01), None
patent: 40 20 351 (1992-01-01), None
patent: 43 39 365 (1995-05-01), None
patent: 2198860 (1988-06-01), None
Haderer Guenter
Lamm Hubert
Cuchlinski Jr. William A.
Kenyon & Kenyon
Robert & Bosch GmbH
To Tuan C
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