Title:
POWER WINDOW SYSTEM AND DRIVE CONTROLLER THEREOF
Document Type and Number:
Japanese Patent JP2000245183
Kind Code:
A
Abstract:
To reduce the cost of the drive controller of a power window system and make it operable, when its feeding voltage is lowered.
A drive controller of a power window system has such a pinch- sensing circuit 5 that, by monitoring the current value of a motor 2 for driving the opening/closing of a window, the circuit 5 detects pinching when the necessary rising time of the current value of the motor 2 for the rising thereof exceeds a preset time when the window is driven in its closing direction. By an inverse switching circuit 4, the driving direction of the motor 2 is inverted, if the pinch sensing circuit 5 senses pinching.
Inventors:
KATSUMATA TAKAAKI
SAKIYAMA KOJI
AKASHI KAZUYA
SAKIYAMA KOJI
AKASHI KAZUYA
Application Number:
JP4198799A
Publication Date:
September 08, 2000
Filing Date:
February 19, 1999
Export Citation:
Assignee:
FUJIKURA LTD
International Classes:
B60J1/17; E05F15/16; E05F15/20; H02P1/22; H02P3/08; (IPC1-7): H02P3/08; B60J1/17; E05F15/16; E05F15/20; H02P1/22
Attorney, Agent or Firm:
Itami Masaru