Method for controlling adjustment devices of a motor vehicle sea

Details Method for controlling adjustment devices of a motor vehicle sea Method for controlling adjustment devices of a motor vehicle sea

1990-04-04

1991-08-06

Shoop, Jr., William M.

Electricity: motive power systems

Motor-reversing

Periodic- or intermittent-reversing

318286, 318648, H02P 300

Patent

active

050380850

ABSTRACT:
A method controls adjustment devices of a motor vehicle seat. The devices are assigned to the longitudinal movement of the seat and the tilting movement of the seat back and are activated by positioning switching elements to move the motor vehicle seat into predetermined set positions. A switching device corresponding with the seat back blocks the associated adjustment device before the seat back runs into an obstacle lying in its range of adjustment. In order to optimize the motion sequences when a rearward tilting movement of the seat back is initiated by one positioning switching element, shortly before the seat back runs into the obstacle, the adjustment device is blocked from further tilting movement of the seat back and a longitudinal movement of the seat forward is automatically initiated by the switching device. The seat back thereby moves out of the switching range of the switching device again, and, in addition to the longitudinal movement of the seat, the rearward tilting movement of the seat back is also continued again, either until the next time blocking occurs or until the set lowered position of the seat back is reached, in which position the longitudinal movement of the seat is then also stopped.

REFERENCES:
patent: 4404632 (1983-09-01), Harada et al.
patent: 4456861 (1984-06-01), Ratzel et al.
patent: 4523136 (1985-06-01), Dudeck et al.
patent: 4547718 (1985-10-01), Ratzel et al.
patent: 4659145 (1987-04-01), Obersteiner
patent: 4813721 (1989-03-01), Mora

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