Vehicle crash detection device
First Claim
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1. A vehicle crash detection device, comprising:
- a case for accommodating an electric device,wherein the case hasgaskets provided on a circumference of the case,a conductor provided in the gasket so as to be electrically insulated from the case, anddetection means for determining an electric conductive state of the conductor to thereby detect a crash,the vehicle crash detection device further comprising a reference voltage source for applying a reference voltage to the conductor, whereinthe case is grounded, andthe detection means detects a crash when a voltage of the conductor is identical to a ground voltage or the reference voltage.
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Abstract
A metal plate (14) is buried in a gasket (12) of a case (10) for accommodating an electric device such as an inverter. The metal plate (14) is connected to a control board (400) in the case (10), and the voltage of the metal plate (14) is determined. A reference voltage is applied to the metal plate (14), and the case (10) is grounded. When the metal plate (14) is brought into contact with the case (10) or disconnected due to a crash, the voltage of the metal plate (14) is thereby changed, and the control board (400) detects a crash, based on the change in the voltage.
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Citations
5 Claims
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1. A vehicle crash detection device, comprising:
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a case for accommodating an electric device, wherein the case has gaskets provided on a circumference of the case, a conductor provided in the gasket so as to be electrically insulated from the case, and detection means for determining an electric conductive state of the conductor to thereby detect a crash, the vehicle crash detection device further comprising a reference voltage source for applying a reference voltage to the conductor, wherein the case is grounded, and the detection means detects a crash when a voltage of the conductor is identical to a ground voltage or the reference voltage. - View Dependent Claims (2, 3, 4, 5)
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Specification