On-car motor driving apparatus and self-diagnosing and selective

Details On-car motor driving apparatus and self-diagnosing and selective On-car motor driving apparatus and self-diagnosing and selective

1995-02-03

1996-11-26

Ro, Bentsu

Electricity: motive power systems

Limitation of motor load, current, torque or force

318266, 318286, 318469, 3889075, B60J 112

Patent

active

055789129

ABSTRACT:
An on-car motor driving apparatus is equipped with a motor for moving a moving unit such as a window of a motor car, a motor driving controller which controls the revolution, stop, and rotational direction of the motor, and a current measuring and comparing device which measures the variation in current per unit time of the motor and compares the measured variation in current with a preset value. The on-car motor driving apparatus stops the revolution of the motor and/or reverses the rotational direction of the motor through the motor driving controller. The apparatus is further equipped with a voltage measuring device for measuring motor driving voltage and a voltage-based time setting device which changes the length of the unit time in accordance with the driving voltage value measured by the voltage measuring device. Line voltage is supplied to a differential amplifier only when the line voltage is supplied to the motor.

REFERENCES:
patent: 4288726 (1981-09-01), Vazquez-Cuerro et al.
patent: 4347465 (1982-08-01), Goertler et al.
patent: 4463296 (1984-07-01), Tada et al.
patent: 4746845 (1988-05-01), Mizuta
patent: 5126640 (1992-06-01), Leroy
patent: 5483135 (1996-01-01), Parks

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