Electricity: motive power systems – Automatic and/or with time-delay means – With nonautomatic control means
Patent
1995-11-27
1998-03-17
Martin, David S.
Electricity: motive power systems
Automatic and/or with time-delay means
With nonautomatic control means
318473, 318474, 318469, 318282, 318286, 49 28, G05B 500
Patent
active
057291047
ABSTRACT:
Attention is given to that, when a catch-in state occurs while a vehicle window glass is moved upward, a current flowing in a motor serving as a drive means for moving the vehicle window glass increases. In an apparatus for comparing a predetermined current threshold value with a current detected by a motor current monitor unit to recognize a catch-in state, the predetermined current value is made variable, and the catch-in state can be correctly recognized without an erroneous operation even when the external environment changes, or when the window glass is moved upward for the first time. In particular, a current value obtained at the start of the motor and changed by a circumference temperature of the motor is set as a current threshold value, and the current threshold value is set each time the motor is started. A current value in an upward moving operation is estimated each time the window glass is moved downward to set the current value as a current threshold value.
REFERENCES:
patent: 4641067 (1987-02-01), Iizawa et al.
patent: 4686598 (1987-08-01), Herr
patent: 4701684 (1987-10-01), Seidel et al.
patent: 5229695 (1993-07-01), Tsuda et al.
patent: 5351439 (1994-10-01), Takeda et al.
patent: 5488276 (1996-01-01), Nishibe
patent: 5559375 (1996-09-01), Jo et al.
Kamishima Hiroyuki
Miwa Toshimasa
Martin David S.
Nissan Motor Co,. Ltd.
LandOfFree
Power window apparatus for vehicle does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Power window apparatus for vehicle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power window apparatus for vehicle will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-961005