Passive safety system and determination device
First Claim
1. A determination device for a passive safety device that operates according to severity of a collision in a vehicle accident comprising:
- a single acceleration sensor that measures an acceleration of a vehicle; and
a determination circuit that includes a plastic deformation pulse detection section and a severity determination section, wherein the determination circuit is electrically connected with the acceleration sensor, the plastic deformation pulse detection section detects a plastic deformation pulse by separating the plastic deformation pulse from an acceleration waveform produced by the acceleration sensor, and the severity determination section determines the severity of a collision based on the plastic deformation pulse.
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Accused Products
Abstract
A determination device includes a single acceleration sensor that measures an acceleration of a vehicle and a determination circuit that is electrically connected with the acceleration sensor. The determination circuit has a plastic deformation pulse detection section and a severity determination section. The plastic deformation pulse detection section detects a plastic deformation pulse by separating the plastic deformation pulse from an acceleration waveform produced by the acceleration sensor. The severity determination section determines severity of a collision in a vehicle accident based on the detected plastic deformation pulse. A passive safety device is operated according to the determined severity.
23 Citations
9 Claims
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1. A determination device for a passive safety device that operates according to severity of a collision in a vehicle accident comprising:
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a single acceleration sensor that measures an acceleration of a vehicle; and
a determination circuit that includes a plastic deformation pulse detection section and a severity determination section, wherein the determination circuit is electrically connected with the acceleration sensor, the plastic deformation pulse detection section detects a plastic deformation pulse by separating the plastic deformation pulse from an acceleration waveform produced by the acceleration sensor, and the severity determination section determines the severity of a collision based on the plastic deformation pulse. - View Dependent Claims (2, 3, 4, 5)
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6. A passive safety system comprising:
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a single acceleration sensor that measures an acceleration of a vehicle;
a determination device that includes a determination circuit having a plastic deformation pulse detection section and a severity determination section; and
a passive safety device that protects an occupant from injury in a vehicle accident, wherein the determination device and the passive safety device are electrically connected with the acceleration sensor and the determination device, respectively, the plastic deformation pulse detection section detects a plastic deformation pulse by separating the plastic deformation pulse from an acceleration waveform produced by the acceleration sensor, the severity determination section determines the severity of a collision based on the plastic deformation pulse, and the passive safety device operates according to the severity. - View Dependent Claims (7, 8, 9)
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Specification