Combination pressure and acceleration sensor
First Claim
1. A sensor assembly for impact detection for use in a motor vehicle, the sensor assembly comprising:
- a housing, a pressure transducer sensitive to pressure, and an accelerometer sensitive to acceleration;
whereinthe pressure transducer and the accelerometer are each attached to the housing, the housing being disposed in a location in the vehicle conducive to measuring pressure and acceleration acting on the vehicle including those corresponding to an impact event.
1 Assignment
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Accused Products
Abstract
A sensor assembly for impact detection for use in a motor vehicle including a housing, a pressure transducer sensitive to pressure, and an accelerometer sensitive to acceleration. The pressure transducer and the accelerometer are each attached to the housing and the housing is attached to a location in the vehicle conducive to measuring pressure and acceleration signals corresponding to an impact event. The sensor assembly is configured to provide two independent signals (one for pressure and one for acceleration) to a control unit. The control unit compares both signals to confirm occurrence of the impact event in order to deploy automatic safety devices to protect vehicle occupants while avoiding inadvertent deployment of the safety devices.
26 Citations
20 Claims
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1. A sensor assembly for impact detection for use in a motor vehicle, the sensor assembly comprising:
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a housing, a pressure transducer sensitive to pressure, and an accelerometer sensitive to acceleration;
whereinthe pressure transducer and the accelerometer are each attached to the housing, the housing being disposed in a location in the vehicle conducive to measuring pressure and acceleration acting on the vehicle including those corresponding to an impact event. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification