Hybrid tire pressure monitoring system
First Claim
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1. A tire pressure monitoring system for a vehicle that rides on N tires during use, comprising:
- N rotation sensors that generate N rotation signals based on rotation of respective ones of said N tires;
M pressure sensors that are associated with M of said N tires and that generate pressure signals based on pressure within respective ones of said M of said N tires; and
a control module that receives said N rotation signals from said N tires and said M pressure signals from said M of said N tires and that monitors a pressure condition in at least one tire other than said M of said N tires based thereon.
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Abstract
A tire pressure monitoring system for a vehicle having a plurality of inflatable tires includes a plurality of rotation sensors that generate rotation signals based on a rotation of each of the tires and a pressure sensor that is responsive to a pressure within one of the tires and that generates a pressure signal based on the pressure. A control module receives the pulse signals and the pressure signal and that detects a low pressure condition of at least one of the tires based on the pressure signal and the pulse signals.
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Citations
67 Claims
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1. A tire pressure monitoring system for a vehicle that rides on N tires during use, comprising:
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N rotation sensors that generate N rotation signals based on rotation of respective ones of said N tires;
M pressure sensors that are associated with M of said N tires and that generate pressure signals based on pressure within respective ones of said M of said N tires; and
a control module that receives said N rotation signals from said N tires and said M pressure signals from said M of said N tires and that monitors a pressure condition in at least one tire other than said M of said N tires based thereon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A tire pressure monitoring system for a vehicle having a plurality of inflatable tires, comprising:
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a plurality of rotation sensors that generate rotation signals based on a rotation of each of said tires;
a pressure sensor that is responsive to a pressure within one of said tires and generates a pressure signal based on said pressure; and
a control module that receives said rotation signals and said pressure signal, and that detects a low pressure condition of at least one of said tires based on said rotation signals and said pressure signal. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A tire pressure monitoring system for a vehicle having a plurality of inflatable tires, comprising:
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a plurality of rotation sensors that generate rotation signals based on a rotation of each of said tires;
a pressure sensor that is responsive to a pressure within one of said tires and generates a pressure signal based on said pressure; and
a control module that receives said rotation signals and said pressure signal, that characterizes a tire pressure monitoring baseline based on said rotation signals and said pressure signal and that detects a low pressure condition of at least one of said tires based on said baseline and said rotation signals. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A method of detecting a low pressure condition in one of a plurality of tires of a vehicle, comprising:
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generating rotation signals based on a rotation of each of said tires;
generating a pressure signal from a pressure sensor based on a pressure within one of said tires;
detecting said low pressure condition based on said rotation signals and said pressure signal. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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47. A method of detecting a low pressure condition in one of a plurality of tires of a vehicle, comprising:
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generating rotation signals based on a rotation of each of said tires;
generating a pressure signal based on a pressure within one of said tires;
initiating a primary characterization routine based on said pressure signal to define a tire pressure monitoring baseline;
initiating a secondary characterization routine upon completion of said primary characterization routine to further define said baseline; and
detecting said low pressure condition of at least one of said tires based on said baseline and said pulse signals. - View Dependent Claims (48, 49, 50, 51, 52, 53, 54, 55, 56)
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57. A tire pressure monitoring system for a vehicle having a plurality of inflatable tires, comprising:
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a plurality of pulse generating sensors that generate pulse signals based on a rotation of each of said tires;
a pressure sensor that is responsive to a pressure within one of said tires and generates a pressure signal based on said pressure; and
a control module that receives said pulse signals and said pressure signal, that executes a primary characterization routine to define a first baseline based on said pulse signals and said pressure signal, that executes a secondary characterization routine upon completion of said primary characterization routine to define a second baseline based on said pulse signals and that detects a low pressure condition of at least one of said tires based on one of said first and second baselines and said pulse signals. - View Dependent Claims (58, 59, 60, 61, 62, 63, 64, 65, 66, 67)
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Specification