Vehicle upfront sensor
First Claim
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1. A vehicle sensor, comprising:
- an upfront sensor having at least one cavity, each cavity having a sensing element therein, the upfront sensor detecting an impact via the sensing element as a function of a deformation of the cavity, each sensing element being a temperature sensor, the cavity being sealed so that an adiabatic pressure increases and a temperature increases in response to a deformation of the cavity,wherein the sensor is capable of modulating data onto a D.C. current on a transmission line used to transmit power to the sensing element.
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Abstract
A vehicle upfront sensor is described that has a cavity and a sensing element therein. A collision is detected as a function of the deformation of the cavity. The sensing element may be designed as a pressure or temperature sensor, the cavity then being largely closed, so that an adiabatic pressure or temperature increase is measurable.
16 Citations
11 Claims
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1. A vehicle sensor, comprising:
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an upfront sensor having at least one cavity, each cavity having a sensing element therein, the upfront sensor detecting an impact via the sensing element as a function of a deformation of the cavity, each sensing element being a temperature sensor, the cavity being sealed so that an adiabatic pressure increases and a temperature increases in response to a deformation of the cavity, wherein the sensor is capable of modulating data onto a D.C. current on a transmission line used to transmit power to the sensing element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A vehicle sensor, comprising:
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an upfront sensor having at least one cavity, each cavity having a sensing element therein, the upfront sensor detecting an impact via the sensing element as a function of a deformation of the cavity, each sensing element being a temperature sensor, the cavity being sealed so that an adiabatic pressure increases and a temperature increases in response to a deformation of the cavity, wherein the sensor is capable of bidirectional data communication to and from the sensing element, the bidirectional data communication involving the assignment of time slots for communicated data.
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Specification