System for measuring life expectancy of a tire condition monitoring system
First Claim
1. A system for monitoring life expectancy of a remote tire monitoring sensor comprising:
- a tire-based unit having a sensor that receives power from a power supply located within said tire-based unit, the sensor used to detect at least one tire parameter;
a transmitter located within the tire-based unit that receives power from said power supply that transmits a signal relating to the parameter measured by said sensor;
a controller that evaluates the life of said power supply by monitoring energy usage of the power supply by counting the number of occurrences in which said energy usage is above a prescribed amount and comparing the number of occurrences to a threshold.
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Accused Products
Abstract
A system (10) is provided for monitoring a remote tire monitoring sensor. The system includes a tire-based unit (16) having a sensor (42) and transmitter (44) that receives power from a power supply (18) located within the tire-based unit (16). The transmitter (44) transmits a signal (22) relating to a parameter measured by the sensor (42). The system (10) further includes a controller (36) that evaluates the life of the power supply (18) by monitoring energy usage of the power supply (18) by counting the number of occurrences in which the energy usage is above a prescribed amount (59) and comparing the number of occurrences to an energy threshold (60).
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Citations
14 Claims
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1. A system for monitoring life expectancy of a remote tire monitoring sensor comprising:
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a tire-based unit having a sensor that receives power from a power supply located within said tire-based unit, the sensor used to detect at least one tire parameter; a transmitter located within the tire-based unit that receives power from said power supply that transmits a signal relating to the parameter measured by said sensor; a controller that evaluates the life of said power supply by monitoring energy usage of the power supply by counting the number of occurrences in which said energy usage is above a prescribed amount and comparing the number of occurrences to a threshold. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system for monitoring a power supply located within a tire condition monitoring unit comprising:
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a plurality of components located within said tire condition monitoring unit, including at least one sensor used to measure at least one tire parameter, a transmitter for transmitting signals relating to the tire parameters measured by said sensor, and a controller for controlling said sensor and transmitter; the controller further including an algorithm for monitoring the power supply by tracking the energy usage for each operation performed by said plurality of components; and wherein said algorithm further comprises a prescribed energy threshold and tracking only energy usage greater than said prescribed energy threshold for each operation performed by said plurality of components. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method of monitoring a power supply located in a tire condition monitoring system comprising:
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monitoring energy usage of operations performed by a plurality of components located within said tire condition monitoring system; referencing a respective known value for said monitored energy usage for each operation performed by said plurality of components, the known energy values being in an algorithm located in a controller of the tire condition monitoring system; incrementing a counter for each known energy value referenced to an incremented count value; and comparing said incremented count value to a count limit. - View Dependent Claims (14)
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Specification