TIRE SENSOR MODULE
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Accused Products
Abstract
A tire sensor module for use in a vehicle tire including at least one sensor device for measuring at least one measured variable and for outputting at least one measuring signal, a control device, e.g., an analyzer ASIC for receiving the measuring signal and for outputting at least one transmitted signal to a wireless interface for emitting the transmitted signal to a receiver in or on the vehicle, and an energy accumulator, in particular a battery, for supplying power to at least the control device. A switching device is provided between the energy accumulator and the control device which interrupts or closes the power supply of the control device by the energy accumulator as a function of a control signal, and an electromechanical energy transducer which, under the effect of a deformation, a motion and/or a pressure change, outputs the control signal, in particular a piezoelectric voltage, to the switching device for closing the power supply.
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Citations
28 Claims
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1-14. -14. (canceled)
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15. A tire sensor module for use in a vehicle tire, comprising:
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at least one sensor device to measure at least one measured variable and output at least one measuring signal; a control device to receive the at least one measuring signal and output at least one transmitted signal to a wireless interface to emit the transmitted signal to a receiver of the vehicle; an energy accumulator for the power supply of at least the control device; a switching device between the energy accumulator and the control device, wherein the switching device interrupts or closes the power supply of the control device by the energy accumulator as a function of a control signal; and an electromechanical energy transducer, under the effect of at least one of a deformation, a motion and a pressure change, to output the control signal to the switching device for closing the power supply. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A method for ascertaining state variables of a vehicle tire, the method comprising:
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supplying, during a drive, a control device of a tire sensor module with power; receiving at least a measuring signal which reflects a state variable of the vehicle tire; forming a wireless transmitted signal from the measuring signal; outputting the wireless transmitted signal via a wireless interface; switching a power supply of the control device by a switching device; closing the power supply during the drive under the effect of at least one of an external deformation, a motion and an external pressure on the tire sensor module; and interrupting the power supply at a standstill of the tire.
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Specification