Motor vehicle tire pressure and temperature sensing system
First Claim
1. A tire pressure monitor for coupling to tire valves of a motor vehicle comprising:
- a sensor unit mounted to a tire valve, said unit comprising a pressure sensor and a pair of temperature sensors, a microcontroller connected to said sensors to receive signals therefrom, and a transmitter/receiver coupled to the microcontroller and receiving signals therefrom; and
,a display unit mounted in the motor vehicle including a transmitter/receiver to send and receive signals from the transmitter/receiver in the sensor unit, a microcontroller connected thereto to receive and process signals to and from the display unit indicating tire pressure and internal tire temperature and ambient temperature.
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Accused Products
Abstract
A system for displaying dynamic readings of a motor vehicle'"'"'s tire pressure, temperature and tire ride efficiency comprises individual integrated units that are removably attached to each valve stem. Each unit comprises a pressure sensor and a temperature sensor coupled to a microcontroller which activates a transmitter/receiver set with a measured signal. The signal is received by a transmitter/receiver set in a passenger compartment mounted display which feeds a signal through a microcontroller to the display unit. In operation, theft prevention serial numbers of the remote sensors are entered in the display unit. Each individual sensor may then be queried sequentially with the appropriate serial number to provide a pressure and temperature reading for a particular tire as well as battery condition. The readings and warning signals are activated in the display unit.
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Citations
10 Claims
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1. A tire pressure monitor for coupling to tire valves of a motor vehicle comprising:
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a sensor unit mounted to a tire valve, said unit comprising a pressure sensor and a pair of temperature sensors, a microcontroller connected to said sensors to receive signals therefrom, and a transmitter/receiver coupled to the microcontroller and receiving signals therefrom; and
,a display unit mounted in the motor vehicle including a transmitter/receiver to send and receive signals from the transmitter/receiver in the sensor unit, a microcontroller connected thereto to receive and process signals to and from the display unit indicating tire pressure and internal tire temperature and ambient temperature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for monitoring tires on a motor vehicle comprising the steps of:
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providing a display unit and a sensor unit mounted to each tire valve; providing power to the display unit; performing a self diagnostic check involving communicating with each sensor unit with a theft deterrent code, the display unit and the system electronics to determine if a malfunction exists; transmitting a wake up call to each sensor unit in sequence; measuring tire pressure and temperature with each sensor unit as a wake up call is received; transmitting the measured information to the display unit; and
,displaying the measured information on said display unit. - View Dependent Claims (10)
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Specification