Process for monitoring movement of closure devices which may be

Details Process for monitoring movement of closure devices which may be Process for monitoring movement of closure devices which may be

1995-05-03

1996-12-17

Ro, Bentsu

Electricity: motive power systems

Automatic and/or with time-delay means

Movement, position, or limit-of-travel

318266, 318286, 318468, 3889075, G05B 902, H02P 122, E05F 1510

Patent

active

055857051

ABSTRACT:
A process for the monitoring of, in particular, the closing of a motor-operated aggregate, preferably for use in motor vehicles, for example a vehicle window or sliding roof. A motor which is connected to the vehicle electrical supply system is switched off by means of switching elements and/or a sensor which detects characteristic values of the aggregate and a data processing system including storage and comparing means. Switch off occurs during the closing process within a predetermined (central) portion of the closing travel, when a value dependent on the motor rpm or the speed of the aggregate exceeds a threshold value based on a stored reference value. A monitoring system is effective in the start-up phase of the motor. In the start-up phase of the motor, therefore, an initial threshold value based on a reference value detected towards the end of the previous adjustment process and then stored, is compared with the current motor period value.

REFERENCES:
patent: 4514670 (1985-04-01), Fassel et al.
patent: 4641067 (1987-02-01), Iizawa et al.
patent: 5170106 (1992-12-01), Ogasawara
patent: 5298840 (1994-03-01), Yoshino et al.

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