Power window control device

Details Power window control device Power window control device

1995-12-11

1998-03-31

Sircus, Brian

Electricity: motive power systems

Automatic and/or with time-delay means

Plural, diverse conditions or with time-delay means

314455, 314466, 314434, G05D 320

Patent

active

057342458

ABSTRACT:
When a window glass catches an obstacle and driving current of a driving motor increases to a set maximum value, the driving current is controlled within the maximum set value to limit the obstacle catching force. Because the motor is controlled by a duty ratio of PWM signal, the motor speed can be controlled with ease and stable control of the motor is ensured.

REFERENCES:
patent: 4870333 (1989-09-01), Itoh et al.
patent: 5334876 (1994-08-01), Washeleski et al.
patent: 5399950 (1995-03-01), Lu et al.
patent: 5483135 (1996-01-01), Parks
patent: 5539290 (1996-07-01), Lu et al.

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