Use of piezoelectric sensor attached to electronics package housing
First Claim
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1. A tire environment monitoring system, comprising:
- an enclosure;
a circuit board housed within said enclosure;
a signal transmitter;
a tire environment sensitive sensor housed within said enclosure, said tire environment sensitive sensor configured to provide tire environment related signals to said signal transmitter ;
an elastomeric material surrounding said enclosure; and
a piezoelectric sensor physically coupled to said enclosure and configured to provide multidimensional strain induced signals to said signal transmitter;
the multidimensional strain induced signals being indicative of one or more tire motion related parameters.
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Abstract
Disclosed ia an apparatus and methodology for detecting tire (1) rotation by associating a piezoelectric sensor (250) with an enclosure housing (210) tire environment related sensors and electronics. The enclosure (210) may be mounted in a tire (1) in a location subject to multi-dimensional strain and a signal processor is employed to separate tire rotation information for other types of strain induced signals that may be produced by the piezoelectric sensor (250).
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Citations
11 Claims
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1. A tire environment monitoring system, comprising:
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an enclosure; a circuit board housed within said enclosure; a signal transmitter; a tire environment sensitive sensor housed within said enclosure, said tire environment sensitive sensor configured to provide tire environment related signals to said signal transmitter ; an elastomeric material surrounding said enclosure; and a piezoelectric sensor physically coupled to said enclosure and configured to provide multidimensional strain induced signals to said signal transmitter;
the multidimensional strain induced signals being indicative of one or more tire motion related parameters. - View Dependent Claims (2, 3, 4, 5)
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6. A method for producing tire rotation responsive signals, comprising the steps of:
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providing a tire; providing an enclosure; associating a piezoelectric sensor with said enclosure; providing a signal processor to process signals generated by said piezoelectric sensor to provide signals indicative of one or more tire motion related parameters; and mounting said enclosure in said tire in a position subject to multidimensional strain upon tire rotation. - View Dependent Claims (7, 8, 9, 10)
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11. A method for detecting tire rotation, comprising the steps of:
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mounting a strain sensitive sensor in a tire in a position subject to multidimensional strain upon tire rotation; and processing signals produced by the sensor to isolate tire rotation indicative signals from other signals that are produced upon tire rotation by said strain sensitive sensor; wherein the step of mounting comprises mounting a piezoelectric sensor in an enclosure housing tire environment related sensors.
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Specification