Controlling method of seat belt retractor
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United States of America Patent
Stats
-
Dec 7, 2004
Issued Date -
N/A
app pub date -
Jun 24, 2002
filing date -
Jan 19, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In controlling a seat belt retractor, at least one of signals selected from a state signal showing a movement of an occupant wearing a seat belt and an external signal obtained from detecting means installed in a vehicle during running thereof is received. Then, a rotation of a spool for a webbing is controlled by switching a rotational torque of a motor to a predetermined reduction ratio corresponding to at least one of the state signal and the external signal, or a driving state of the motor is controlled to a predetermined torque, to thereby wind the webbing on the spool. After fastening the seat belt, the seat belt is automatically wound, and after a predetermined time from completion of winding of the webbing, it is determined whether the winding of the webbing is further needed, and if necessary, the webbing is wound again.
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Family
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Cited Art Landscape
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