Tire tread wear sensor system
First Claim
1. A system for monitoring wear of a vehicle part, comprising:
- a user interface;
at least one radio frequency identification (RFID) tag with unique identification embedded in the part at a depth indicative of a worn part;
an RF tag reader that can periodically monitor signals from the at least one RFID tag;
a controller coupled to the RF tag reader and user interface, wherein if the RF tag reader fails to obtain any signals from the at least one RFID tag, indicating a destroyed RFID tag, the controller can direct the user interface to warn a user of the vehicle that the part containing that RFID tag is worn; and
a clock coupled to the controller, and wherein the at least one RFID tag includes a plurality of RFID tags in each tire of the vehicle embedded at different tread depths, wherein the controller can monitor the progress of tire wear for each tire by determining when individual RFID tags are destroyed, wherein if the RFID tags at corresponding tread depths of each tire are not all destroyed within a predetermined time period the controller can direct the user interface to warn a user of the vehicle that the vehicle is experiencing uneven tire wear.
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Accused Products
Abstract
A system and method for monitoring belt wear or tread wear of a tire includes at least one radio frequency identification (RFID) tag with unique identification embedded in the belt or tread of the tire at one or more wear points. An RF tag reader periodically monitoring signals from the at least one RFID tag. If the RF tag reader fails to obtain any signals from the at least one RFID tag, indicating a destroyed RFID tag, the user can be warned about a wear problem of that belt or tire. RFID tags can be distributed at different depths of the tire(s), or across the tread at the same depth, of the tire(s) to determine different wear problems. The same RFID tag can also be used for inventory tracking purposes.
132 Citations
17 Claims
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1. A system for monitoring wear of a vehicle part, comprising:
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a user interface; at least one radio frequency identification (RFID) tag with unique identification embedded in the part at a depth indicative of a worn part; an RF tag reader that can periodically monitor signals from the at least one RFID tag; a controller coupled to the RF tag reader and user interface, wherein if the RF tag reader fails to obtain any signals from the at least one RFID tag, indicating a destroyed RFID tag, the controller can direct the user interface to warn a user of the vehicle that the part containing that RFID tag is worn; and a clock coupled to the controller, and wherein the at least one RFID tag includes a plurality of RFID tags in each tire of the vehicle embedded at different tread depths, wherein the controller can monitor the progress of tire wear for each tire by determining when individual RFID tags are destroyed, wherein if the RFID tags at corresponding tread depths of each tire are not all destroyed within a predetermined time period the controller can direct the user interface to warn a user of the vehicle that the vehicle is experiencing uneven tire wear. - View Dependent Claims (2, 3, 5, 6, 8)
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4. A system for monitoring wear of a vehicle part, comprising:
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a user interface; at least one radio frequency identification (RFID) tag with unique identification embedded in the part at a depth indicative of a worn part; an RF tag reader that can periodically monitor signals from the at least one RFID tag; a controller coupled to the RF tag reader and user interface, wherein if the RF tag reader fails to obtain any signals from the at least one RFID tag, indicating a destroyed RFID tag, the controller can direct the user interface to warn a user of the vehicle that the part containing that RFID tag is worn; and a mileage indicator of the vehicle coupled to the controller, and wherein the at least one RFID tag includes a plurality of RFID tags in each tire of the vehicle embedded at different tread depths, wherein the controller can monitor the progress of tire wear for each tire by determining when individual RFID tags are destroyed, wherein if the RFID tags at corresponding tread depths of each tire are not all destroyed within a predetermined mileage range the controller can direct the user interface to warn a user of the vehicle that the vehicle is experiencing uneven tire wear.
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7. A system for monitoring wear of a vehicle part, comprising:
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a user interface; at least one radio frequency identification (RFID) tag with unique identification embedded in the part at a depth indicative of a worn part; an RF tag reader that can periodically monitor signals from the at least one RFID tag; a controller coupled to the RF tag reader and user interface, wherein if the RF tag reader fails to obtain any signals from the at least one RFID tag, indicating a destroyed RFID tag, the controller can direct the user interface to warn a user of the vehicle that the part containing that RFID tag is worn; and a radio communication device coupled to the controller, the radio communication device able to download weather and location information, and wherein the unique identification of the at least one RFID tag includes a weather rating of the tire, wherein if the controller determines that the weather rating of the tire is not suitable for the current weather conditions the controller can direct the user interface to warn a user of the vehicle that the weather rating of the tire is not suitable for the current weather conditions.
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9. A system for monitoring tread wear of a tire of a vehicle, comprising:
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a user interface in the vehicle; a clock in the vehicle; a mileage indicator in the vehicle; a plurality of radio frequency identification (RFID) tags with unique identification embedded in the tread of each tire; an RF tag reader located in a vehicle carrying the tire, the RF tag reader can periodically monitor signals from the plurality of RFID tags; and a controller coupled to the clock, mileage indicator, RF tag reader and user interface, wherein if the RF tag reader fails to obtain any signals from the at least one RFID tag, indicating a destroyed RFID tag, the controller determines if there is a problem and then directs the user interface to warn a user of the vehicle that the tire containing that RFID tag is experiencing a problem, wherein the plurality of RFID tags include RFID tags embedded at different tread depths, wherein the controller can monitor the progress of tire wear for each tire by determining when individual RFID tags are destroyed, wherein if the RFID tags at corresponding tread depths of each tire are not all destroyed within at least one of the group of a predetermined time period and predetermined mileage range the controller can direct the user interface to warn a user of the vehicle that the vehicle is experiencing uneven tire wear. - View Dependent Claims (10, 11, 12, 13)
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14. A method for monitoring tread wear of a tire of a vehicle that includes a user interface, clock, and mileage indicator, the method comprising the steps of:
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providing a plurality of radio frequency identification (RFID) tags with unique identification embedded in the tread of each tire; periodically monitoring signals from the plurality of RFID tags; detecting when an RFID tag fails to send any more signals, indicating a destroyed RFID tag; determining if the failed RFID tag indicates a problem; and warning a user of the vehicle of the problem, wherein the providing step includes providing RFID tags embedded at different tread depths in each tire, wherein the monitoring step monitors the progress of tire wear for each tire by determining when individual RFID tags are destroyed, wherein if the detecting step detects that RFID tags at corresponding tread depths of each tire are not all destroyed within at least one of the group of a predetermined time period and predetermined mileage range the warning step can warn a user of the vehicle that the vehicle is experiencing uneven tire wear. - View Dependent Claims (15, 16, 17)
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Specification