System and method for tire pressure monitoring including automatic tire location recognition
First Claim
1. In a vehicle having a plurality of tires, each tire having a tire location associated therewith, a system for monitoring tire pressure comprising:
- a plurality of tire monitors, each monitor for mounting in one of the plurality of tires, each monitor comprising means for determining tire pressure and a transmitter for transmitting a signal representative of the tire pressure determined;
a receiver for mounting on board the vehicle for receiving the tire pressure signals, the receiver comprising an antenna to be located on the vehicle at a site, wherein each tire pressure signal has an amplitude and, for each tire location, the amplitude has a unique pattern over time for the antenna site without regard to a data encoding scheme for the tire pressure signal; and
a controller for mounting on board the vehicle, the controller to be provided in communication with the receiver for collecting and processing the tire pressure signals to automatically identify the tire locations associated therewith based on the unique amplitude patterns, the controller further for generating control signals for use in conveying tire pressure and location information to a vehicle occupant.
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Accused Products
Abstract
A system and method for monitoring vehicle tire pressure. A tire pressure monitor for each tire includes a pressure sensor for sensing tire pressure and a transmitter for transmitting a tire pressure signal representative of the sensed tire pressure. A receiver for mounting on the vehicle receives the tire pressure signals, and includes an antenna to be located at a vehicle site. Each tire pressure signal has an amplitude and, for each tire location, the amplitude has a unique pattern over time for the antenna site. A controller for mounting on the vehicle communicates with the receiver and collects and processes the tire pressure signals to automatically identify the tire location associated with each tire pressure signal based on the unique amplitude patterns. The controller further generates control signals for use in conveying tire pressure and location information to a vehicle occupant.
144 Citations
20 Claims
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1. In a vehicle having a plurality of tires, each tire having a tire location associated therewith, a system for monitoring tire pressure comprising:
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a plurality of tire monitors, each monitor for mounting in one of the plurality of tires, each monitor comprising means for determining tire pressure and a transmitter for transmitting a signal representative of the tire pressure determined;
a receiver for mounting on board the vehicle for receiving the tire pressure signals, the receiver comprising an antenna to be located on the vehicle at a site, wherein each tire pressure signal has an amplitude and, for each tire location, the amplitude has a unique pattern over time for the antenna site without regard to a data encoding scheme for the tire pressure signal; and
a controller for mounting on board the vehicle, the controller to be provided in communication with the receiver for collecting and processing the tire pressure signals to automatically identify the tire locations associated therewith based on the unique amplitude patterns, the controller further for generating control signals for use in conveying tire pressure and location information to a vehicle occupant. - View Dependent Claims (2, 3, 4, 6, 7, 8, 9, 10)
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5. In a vehicle having a plurality of tires, each tire having a tire location associated therewith, a system for monitoring tire pressure comprising:
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a plurality of tire monitors, each monitor for mounting in one of the plurality of tires, each monitor comprising means for determining tire pressure and a transmitter for transmitting a signal representative of the tire pressure determined;
a receiver for mounting on board the vehicle for receiving the tire pressure signals, the receiver comprising an antenna to be located on the vehicle at a site, wherein each tire pressure signal has an amplitude and, for each tire location, the amplitude has a unique pattern over time for the antenna site; and
a controller for mounting on board the vehicle, the controller to be provided in communication with the receiver for collecting and processing the tire pressure signals to automatically identify the tire locations associated therewith based on the unique amplitude patterns, the controller further for generating control signals for use in conveying tire pressure and location information to a vehicle occupant, wherein the amplitude patterns of the tire pressure signals vary depending on vehicle speed, and the controller is further to be provided with vehicle speed information so that, for each tire location, a stored amplitude pattern of the tire pressure signal at a vehicle speed can be used in identifying the tire location.
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11. In a vehicle having a plurality of tires, each tire having a tire location associated therewith, a method for monitoring tire pressure comprising:
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providing a plurality of tire monitors, each monitor for mounting in one of the plurality of tires, each monitor comprising means for determining tire pressure and a transmitter for transmitting a signal representative of the tire pressure determined;
providing a receiver for mounting on board the vehicle for receiving the tire pressure signals, the receiver comprising an antenna to be located on the vehicle at a site, wherein each tire pressure signal has an amplitude and, for each tire location, the amplitude has a unique pattern over time for the antenna site without regard to a data encoding scheme for the tire pressure signal; and
providing a controller for mounting on board the vehicle, the controller to be provided in communication with the receiver for collecting and processing the tire pressure signals to automatically identify the tire locations associated therewith based on the unique amplitude patterns, the controller further for generating control signals for use in conveying tire pressure and location information to a vehicle occupant. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification