System and method for automatic location assignment of wheels equipped with pressure sensors

A pressure sensor, equipped with technology, applied in the field of wheel position of the wheel, can solve the problem of adding hardware and so on

Inactive Publication Date: 2014-12-24
DELPHI TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Various approaches have been proposed for the system to automatically recognize or self-train wheel positions, some of which require an undesired addition of expensive hardware

Method used

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  • System and method for automatic location assignment of wheels equipped with pressure sensors
  • System and method for automatic location assignment of wheels equipped with pressure sensors
  • System and method for automatic location assignment of wheels equipped with pressure sensors

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Embodiment Construction

[0016] A tire pressure monitoring system and method is described herein that uses changes or fluctuations in tire pressure to determine the vehicle's wheel position (e.g., front right (RF), rear right (RR), front left (LF), and rear left (LR) ). Generally speaking, a proper change in tire pressure is short-lived in a natural state, usually caused by the vehicle turning or the vehicle driving through some uneven roads. The changes are analyzed and a comparison of these pressure changes from one wheel to another can be used to determine the wheel position. In this way, the wheel positions can be determined by the system without manual programming or other intervention by a service technician or vehicle owner, ie, the system has an automatic wheel position assignment feature. The system and method overcomes the long-standing problem of automating wheel position identification without adding undesired vehicle expense and avoids possible human error by eliminating manual assignmen...

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Abstract

A method of operating a tire pressure monitor system (12) on a vehicle (10) to determine a wheel location of wheels (14) equipped with pressure sensors (16). The method includes equipping a plurality of wheels (14) with a pressure sensor (16), determining a plurality of pressure values from each pressure sensor (16), detecting a variation of the pressure values from a plurality of pressure sensors (16), and determining a wheel location based on a comparison of the variations of the pressure values. Variations useful for determining wheel location may include running over an object such as a rumble strip or pot-hole on the roadway, or the vehicle (10) executing a turn.

Description

technical field [0001] The present invention relates generally to tire pressure monitoring systems, and more particularly to determining the wheel position of pressure sensor-equipped wheels based on a comparison of changes in pressure values ​​that occur while the vehicle is being operated. Background technique [0002] Some vehicles are equipped with tire pressure monitoring systems. These systems generally indicate the tire pressure of the wheels at a particular wheel alignment or wheel position. For example, the system individually indicates tire pressure at front right (RF), rear right (RR), front left (LF) and rear left (LR) wheel positions. Some systems require reprogramming of the wheel position by a service technician or the vehicle owner if the position of the wheel changes. Various approaches have been proposed for the system to automatically recognize or self-train wheel positions, some of which require an undesired addition of expensive hardware. For various ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C23/04
CPCB60C23/0416B60C23/0477
Inventor K·J·霍斯C·D·瑞普T·P·奥曼
Owner DELPHI TECH INC
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