Vehicle door lock with a centrally-operated locking unit

Details Vehicle door lock with a centrally-operated locking unit Vehicle door lock with a centrally-operated locking unit

1996-10-25

1998-06-09

Lindsey, Rodney M.

Closure fasteners

Bolts

Swinging

292201, 292DIG27, 318685, E05C 316

Patent

active

057623848

ABSTRACT:
A vehicle door lock having a closing element component, a locking element component and an actuating element component, the latter having a component actuating element and a securing actuating element, is connected to a central locking unit for remote controlled actuation of the securing actuation element. The actuation is effected with an electric motor and, in addition, a position monitoring is provided. The electric motor, for drive by the central locking unit is a reversible polyphase stepping motor with a phase confirming stator winding and which acts via a transmission on the lock component. The locking component is designed for a drive power which is greater than the nominal power of the polyphase stepping motor when it is permanently energized. The stepping motor is driven with a working voltage which is greater than the design voltage corresponding to the drive power for the centrally operable unit. For the position monitoring, a step monitor system is used. The polyphase stepping motor is controlled with the aid of a computer.

REFERENCES:
patent: 4735447 (1988-04-01), Kleefeldt
patent: 4974886 (1990-12-01), Kleefeldt et al.
patent: 5656899 (1997-08-01), Kuroda
patent: 5667260 (1997-09-01), Weyerstall
patent: 5680783 (1997-10-01), Kuroda
Boinodiris, Light-Emitting Diode/Stepper Motor Shutoff Control Circuitry, IBM Tech. Discl. Bulletin, vol. 18 No. 9, pp. 2759-2760, Feb. 1976.
Veillette, Smart Circuit Boosts Stepper Precision, Machine Design vol. 50, No. 17, pp. 84-85, Jul. 1978.
"Saia Schrittmotoren" Ausgabe 17/21 D1; pp. 1-57.

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