VEHICULAR SEATBELT APPARATUS
First Claim
Patent Images
1. A seatbelt apparatus for a vehicle, comprising;
- a belt reel for winding a belt;
a motor for rotationally driving the belt reel;
control means for controlling an amount of electric current applied to the motor; and
rotational position detection means for detecting a rotational position of the belt reel,wherein the control means comprises;
means for applying a predetermined amount of electric current to the motor when the vehicle is in a predetermined travel state, andmeans for, when determination is made, during application of the predetermined amount of electric current, based on the rotational position detected by the rotational position detection means, that the belt reel has reached a predetermined rotational position, applying to the motor an amount of electric current for holding the predetermined rotational position.
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Accused Products
Abstract
A seatbelt apparatus for a vehicle includes a control device for controlling an amount of electric current fed to a motor for winding a seatbelt. The control device controls the motor such that a predetermined amount of electric current is applied to the motor in a behavioral state of the vehicle requiring emergency measures, and such that when the seatbelt is wound a predetermined amount, the predetermined amount of winding is maintained.
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Citations
3 Claims
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1. A seatbelt apparatus for a vehicle, comprising;
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a belt reel for winding a belt; a motor for rotationally driving the belt reel; control means for controlling an amount of electric current applied to the motor; and rotational position detection means for detecting a rotational position of the belt reel, wherein the control means comprises; means for applying a predetermined amount of electric current to the motor when the vehicle is in a predetermined travel state, and means for, when determination is made, during application of the predetermined amount of electric current, based on the rotational position detected by the rotational position detection means, that the belt reel has reached a predetermined rotational position, applying to the motor an amount of electric current for holding the predetermined rotational position. - View Dependent Claims (2)
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3. A seatbelt apparatus for a vehicle, comprising:
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a belt reel for winding a belt; a motor for rotationally driving the belt reel; control means for controlling an amount of electric current applied to the motor; and rotational position detection means for detecting a rotational position of the belt reel; wherein the control means comprises; means for controlling the amount of electric current applied to the motor so that the belt reel is kept in a first rotational position when a travel state quantity of the vehicle reaches a first state, means for applying a predetermined amount of electric current to the motor when the travel state quantity of the vehicle reaches a second state, and means for, when determination is made during application of the predetermined amount of electric current to the motor, based on the rotational position detected by the rotational position detection means, that the belt reel has reached a second rotational position which is closer to a winding position than the first rotational position, applying to the motor an amount of electric current for holding the second rotational position
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Specification