Apparatus and method for automatically recognizing position of wheel of vehicle
An automatic identification and wheel technology, applied in the field of automatic identification of vehicle wheel position, can solve the problems of deterioration of reliability, high installation cost, high system installation cost, etc.
Inactive Publication Date: 2012-07-11
SAMSUNG ELECTRO MECHANICS CO LTD
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Problems solved by technology
However, regarding the automatic position recognition function, the methods according to the prior art have the following problems: high installation cost is required for good performance, and low installation cost reduces the accuracy of recognizing the wheel position
However, this method has the problem that the wheel position cannot be judged when the pressure of the front wheel, rear wheel, left wheel or right wheel changes while moving
[0013] Therefore, the method of automatically identifying the wheel position according to the prior art requires higher system installation costs due to the limitation of the installation position of the ECM, or may cause reliability problems
Moreover, the above method has problems of technical difficulty, deterioration of reliability, or deterioration of judgment reliability by installing LF transmitters near each wheel
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[0025] Various objects, advantages and features of the present invention will become apparent from the following description of specific embodiments with reference to the accompanying drawings.
[0026] The terms and words used in this specification and claims should not be construed as limited to the typical meanings or dictionary definitions, but should be based on the concept that the inventor can properly define the terms to best describe the implementation of the present invention known to him / her. The rule of the best method of invention is interpreted as having meanings and concepts related to the technical field of the present invention.
[0027] The above and other objects, advantages and features of the present invention will be more clearly understood through the following detailed description in conjunction with the accompanying drawings. In the specification, when adding reference numerals to components throughout the drawings, it should be noted that the same ref...
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Disclosed herein are an apparatus and a method for automatically recognizing a position of a wheel of a vehicle. The apparatus includes a rotation sensor unit sensing a variation in rotation of the wheel of the vehicle; a pressure sensor unit sensing a rate of variation in pressure of the wheel of the vehicle; and a sensor control unit judging the position of the wheel of the vehicle by the variation in rotation and the rate of variation in pressure obtained from the rotation sensor unit and the pressure sensor unit. The sensor control unit judges the position of the wheel of the vehicle by (dw / dt) * (dp / dt), in which dw / dt is the variation in rotation and dp / dt is the rate of variation in pressure. The wheel is judged as a front wheel when a value of (dw / dt) * (dp / dt) has a negative (-) sign and the wheel is judged as a rear wheel when the value of (dw / dt) * (dp / dt) has a positive (+) sign.
Description
[0001] Cross References to Related Applications [0002] This application claims the benefit of Korean Patent Application No. 10-2010-0139972, filed on December 31, 2010, entitled "Apparatus and Method for Automatically Recognizing Position of Wheel of Vehicle", which is incorporated by reference in its entirety into this application. technical field [0003] The invention relates to a device and a method for automatic recognition of the wheel position of a vehicle. Background technique [0004] Currently, various technologies related to safety design and control of vehicles are being developed. As one technical configuration regarding this, a tire pressure monitoring system (TPMS) is widely used and applied in an automatic position recognition function that automatically recognizes the position of a wheel of a vehicle. The use and technology of TPMS applications is expanding. When the tire's pressure deviates from the normal level, the TPMS can check which wheel's pressu...
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IPC IPC(8): B60C23/00B60C23/02
CPCB60C23/0416B60C23/0488B60C23/0477
Inventor 宋钟亨李京窂韩钟雨
Owner SAMSUNG ELECTRO MECHANICS CO LTD