The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 1998
Filed:
Nov. 27, 1995
Hiroyuki Kamishima, Yokohama, JP;
Toshimasa Miwa, Zama, JP;
Nissan Motor Co., Ltd., Kanagawa-ken, JP;
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.