发明授权
- 专利标题: Tire rotation detection system and method
- 专利标题(中): 轮胎旋转检测系统及方法
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申请号: US12364761申请日: 2009-02-03
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公开(公告)号: US07930132B2公开(公告)日: 2011-04-19
- 发明人: Toshiaki Watasue
- 申请人: Toshiaki Watasue
- 申请人地址: US TX Dallas
- 专利权人: Texas Instruments Incorporated
- 当前专利权人: Texas Instruments Incorporated
- 当前专利权人地址: US TX Dallas
- 代理商 John J. Patti; Wade J. Brady, III; Frederick J. Telecky, Jr.
- 优先权: JP2008-023719 20080204
- 主分类号: G01P15/00
- IPC分类号: G01P15/00 ; B60C23/00
摘要:
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.
公开/授权文献
- US20090204361A1 TIRE ROTATION DETECTION SYSTEM AND METHOD 公开/授权日:2009-08-13
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