Opening and closing member control system

Details Opening and closing member control system Opening and closing member control system

2007-07-31

2007-07-31

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

Plural diverse motor controls

Motor-reversing

C318S286000, C318S434000, C318S456000

Reexamination Certificate

active

11390103

ABSTRACT:
A motor drives a window glass of a door of a vehicle in an opening direction and a closing direction. A rotation sensing device outputs a pulse signal in response to rotation of the motor. A controller senses pinching of an object by the window glass based on the rotational speed signal. Specifically, the controller computes a rate of change in the rotational speed, i.e., a rotational speed difference based on the rotational speed signal. The controller senses start of the pinching based on the rotational speed difference. When an amount of change in the rotational speed since the time of sensing the start of the pinching exceeds a pinching determining threshold value, the controller confirm the pinching of the object.

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