Invention Grant
- Patent Title: Tire rotation detection system and method
- Patent Title (中): 轮胎旋转检测系统及方法
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Application No.: US12364761Application Date: 2009-02-03
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Publication No.: US07930132B2Publication Date: 2011-04-19
- Inventor: Toshiaki Watasue
- Applicant: Toshiaki Watasue
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent John J. Patti; Wade J. Brady, III; Frederick J. Telecky, Jr.
- Priority: JP2008-023719 20080204
- Main IPC: G01P15/00
- IPC: G01P15/00 ; B60C23/00

Abstract:
A method for determining whether a tire is in rotation is provided. A measured acceleration is compared to a first threshold after a first timer indicates that a first period has lapsed, and indication that the tire is in rotation is provided if at least one of the measured accelerations is greater than the first threshold. If an absolute difference between consecutive measured accelerations is greater than a second threshold, an indication that the tire is in rotation is also provided. Additionally, the second timer is started if the absolute difference is greater than the second threshold and if a second timer is not running, and indication that the tire is rotating is provided if the absolute difference is less than a predetermined threshold and if the second timer is running.
Public/Granted literature
- US20090204361A1 TIRE ROTATION DETECTION SYSTEM AND METHOD Public/Granted day:2009-08-13
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