SEAT BELT PRETENSIONER FOR VEHICLE AND METHOD FOR PROTECTING PASSENGER USING THE SAME
First Claim
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1. A seat belt pretensioner apparatus for a vehicle, comprising:
- a motor operated in response to a control signal of a seat-belt controller;
a reduction gear transmitting a rotating force of the motor; and
a rotary roll rotated by a rotating force transmitted from the reduction gear, an end of a seat belt being coupled to the rotary roll.
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Abstract
A seat belt pretensioner apparatus for a vehicle may include a motor operated in response to a control signal of a seat-belt controller, a reduction gear transmitting a rotating force of the motor, and a rotary roll rotated by a rotating force transmitted from the reduction gear, an end of a seat belt being coupled to the rotary roll.
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Citations
9 Claims
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1. A seat belt pretensioner apparatus for a vehicle, comprising:
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a motor operated in response to a control signal of a seat-belt controller; a reduction gear transmitting a rotating force of the motor; and a rotary roll rotated by a rotating force transmitted from the reduction gear, an end of a seat belt being coupled to the rotary roll. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for protecting a passenger using a seat belt pretensioner apparatus for a vehicle, comprising:
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generating torque by a motor operated in response to a control signal of a seat-belt controller when a collision signal is detected; generating a maximum torque of the motor to prevent a seat belt from becoming loose when a maximum load acts on the seat belt; and reducing the torque of the motor to enable an operation of a load limiter after the passenger has been restrained by the seat belt. - View Dependent Claims (8, 9)
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Specification