Acceleration detector for a tire of a motor vehicle
First Claim
1. An acceleration detector for a tire of a motor vehicle comprising an elastically deformable membrane and, fixedly attached to the membrane, a test mass to deform it under the effect of acceleration, and an acceleration strain gauge sensitive to the deformations of the membrane under the effect of an acceleration force exerted by the test mass, characterized in that it comprises a pressure strain gauge sensitive to the pressure of the tire so that the acceleration detector also constitutes a pressure sensor, and a pressure measuring system and an acceleration detection system which are integrated, at least in part, into an integrated circuit, the acceleration detection system being arranged to command activation of the pressure measuring system.
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Accused Products
Abstract
The acceleration detector for a tire of a motor vehicle comprises an elastically deformable membrane and, fixedly attached to the membrane, a test mass to deform it under the effect of acceleration, and an acceleration strain gauge sensitive to the deformations of the membrane under the effect of an acceleration force exerted by the test mass.
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Citations
7 Claims
- 1. An acceleration detector for a tire of a motor vehicle comprising an elastically deformable membrane and, fixedly attached to the membrane, a test mass to deform it under the effect of acceleration, and an acceleration strain gauge sensitive to the deformations of the membrane under the effect of an acceleration force exerted by the test mass, characterized in that it comprises a pressure strain gauge sensitive to the pressure of the tire so that the acceleration detector also constitutes a pressure sensor, and a pressure measuring system and an acceleration detection system which are integrated, at least in part, into an integrated circuit, the acceleration detection system being arranged to command activation of the pressure measuring system.
Specification