Patent ID: 6056076
Filing Date: 2000-05-02
Classification: E05B,H02J

Abstract:
An electrical control system for an automotive vehicle, comprising:a starter battery;a control unit connected to said starter battery and provided actuator with means for actuating said control unit;a plurality of electrically operated door locks connected to said control unit and responsive to said actuator means whereby said starter battery energizes said door locks; andan emergency unit in each of said door locks and including:a respective motor driver operatively connected to the respective door lock, an emergency controller connected to said control unit and to said motor driver, energy source continuously connected between said starter battery and said motor driver and chargeable to supply energy to said motor driver, andvoltage limiting circuitry formed by a transistor circuit responsive to a voltage of said starter battery for limiting the voltage applied to said source and said motor driver to a voltage substantially lower than that of said starter battery.