Occupant Protection Device
First Claim
1. A vehicle occupant protection device comprising a headrest configured to be movable forward with respect to a vehicle, and an actuator configured to implement the forward movement of the headrest, said device being configured to protect a vehicle occupant by operating the actuator to move the headrest forward in a pre-crash stage in the course of an object crashing into a backside of the vehicle, wherein the headrest is provided with an electrical capacitance sensor, and said device is configured to control an amount of the forward movement of the headrest according to a variation manner of electrical capacitance, said electrical capacitance being detected by the electrical capacitance sensor when the headrest moves forward.
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Accused Products
Abstract
A vehicle occupant protection device comprising a headrest configured to be movable forward with respect to a vehicle, and an actuator configured to implement the forward movement is disclosed. The device is configured to protect a vehicle occupant by operating the actuator to move the headrest forward in a pre-crash stage in the course of an object crashing into the vehicle from backside of the vehicle. The headrest is provided with an electrical capacitance sensor. The device is configured to control an amount of the forward movement of the headrest according to a variation manner of electrical capacitance, which electrical capacitance is detected by the electrical capacitance sensor when the headrest moves forward.
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Citations
10 Claims
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1. A vehicle occupant protection device comprising
a headrest configured to be movable forward with respect to a vehicle, and an actuator configured to implement the forward movement of the headrest, said device being configured to protect a vehicle occupant by operating the actuator to move the headrest forward in a pre-crash stage in the course of an object crashing into a backside of the vehicle, wherein the headrest is provided with an electrical capacitance sensor, and said device is configured to control an amount of the forward movement of the headrest according to a variation manner of electrical capacitance, said electrical capacitance being detected by the electrical capacitance sensor when the headrest moves forward.
Specification