Seat belt retractor system
First Claim
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1. A seat belt retractor system for a vehicle having a vehicle safety system for providing a signal, the seat belt retractor system comprising:
- a seat belt;
a retractor mechanism associated with the seat belt and having a motor; and
a control circuit for controlling operation of the motor, the control circuit being connected to first and second voltage sources, the second voltage source being configured to provide a higher voltage level than the first voltage source;
wherein the motor is driven by the second voltage source to retract the seat belt when the signal is provided.
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Abstract
A seat belt retractor system for a vehicle having a vehicle safety system. The seat belt is retracted at a faster rate when a threat is detected using a high-voltage generated by a local power source.
31 Citations
20 Claims
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1. A seat belt retractor system for a vehicle having a vehicle safety system for providing a signal, the seat belt retractor system comprising:
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a seat belt; a retractor mechanism associated with the seat belt and having a motor; and a control circuit for controlling operation of the motor, the control circuit being connected to first and second voltage sources, the second voltage source being configured to provide a higher voltage level than the first voltage source; wherein the motor is driven by the second voltage source to retract the seat belt when the signal is provided. - View Dependent Claims (2, 3, 4, 5)
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6. A seat belt retractor system for a vehicle having a vehicle safety system, comprising:
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a seat belt; a motor for retracting the seat belt; first and second voltage sources configured to power the motor; a first signal indicative of a state of charge of the second voltage source; a second signal indicative of a status of the vehicle safety system; and a controller that determines whether to provide power to the motor with the first voltage source or the second voltage source to retract the seat belt based on the first and second signals. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A seat belt retractor system comprising:
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a seat belt; a motor configured to actuate the seat belt; a control circuit for controlling the motor; and first and second safety systems for generating first and second signals indicative of a status of the first and second safety systems, respectively; wherein the motor is driven at a first elevated voltage level to retract the seat belt at a first elevated rate when the first signal is indicative a threat; and wherein the motor is driven at a second elevated voltage level to retract the seat belt at a second elevated rate when the second signal is indicative of a threat. - View Dependent Claims (17, 18, 19, 20)
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Specification