Power window apparatus with function of pinching detection

Details Power window apparatus with function of pinching detection Power window apparatus with function of pinching detection

2007-08-21

2007-08-21

Masih, Karen (Department: 2837)

Electricity: motive power systems

Motor-reversing

Periodic- or intermittent-reversing

C318S285000, C318S466000, C318S469000, C318S443000, C318S444000, C318S445000

Reexamination Certificate

active

11292780

ABSTRACT:
An MCU monitors changes in motor rotating speed from the motor start so as to detect a peak of the motor rotating speed, and when the peak of the motor rotating speed is detected, it measures a period of time Ta from the motor start to the time, at which the decreasing rate of the motor rotating speed becomes maximal, so as to establish the activation/cancellation time period by adding a time Tb that is a predetermined numerical-fold door vibration period to the time Ta. When a second peak with more than a predetermined amount of the motor rotating speed is detected after the first peak detection, the activation/cancellation time period is established by adding a time Tb1that is a predetermined numerical-fold door vibration period to the activation/cancellation time period obtained before.

REFERENCES:
patent: 2004/0138843 (2004-07-01), Bouamra et al.
patent: H7-113375 (1995-05-01), None

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