Control system for opening or closing an opening-closing member

Details Control system for opening or closing an opening-closing member Control system for opening or closing an opening-closing member

1994-03-25

1996-01-09

Shoop, Jr., William M.

Electricity: motive power systems

Automatic and/or with time-delay means

Movement, position, or limit-of-travel

G05B 500

Patent

active

054831334

ABSTRACT:
A control system for opening or closing an opening-closing member when a foreign material is caught by the opening-closing member. The event that the opening-closing member catches the foreign material is decided on the basis of a driving state of a motor for driving the opening-closing member such as a power window. For example, the event that the event of catching the foreign material is decided when a driving acceleration or a driving velocity is less than a predetermined threshold X or Y, respectively. Each of the thresholds X and Y is set basically on the basis of the previous driving acceleration and velocity of the opening-closing member. The thresholds X and Y are corrected on the basis of a condition exerting an influence upon the driving state of the motor, for example, on the basis of a driving voltage or a resistance to a sliding movement of the opening-closing member.

REFERENCES:
patent: 4855653 (1989-08-01), Lemirande
patent: 4980618 (1990-12-01), Milnes et al.
patent: 5166586 (1992-11-01), Yaguchi
patent: 5334876 (1994-08-01), Washeleski et al.

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