Invention Grant
US08577540B2 Method and apparatus for detecting tire having decreased internal pressure, and program for detecting tire having decreased internal pressure
有权
用于检测具有降低的内部压力的轮胎的方法和装置,以及用于检测具有降低的内部压力的轮胎的程序
- Patent Title: Method and apparatus for detecting tire having decreased internal pressure, and program for detecting tire having decreased internal pressure
- Patent Title (中): 用于检测具有降低的内部压力的轮胎的方法和装置,以及用于检测具有降低的内部压力的轮胎的程序
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Application No.: US12900646Application Date: 2010-10-08
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Publication No.: US08577540B2Publication Date: 2013-11-05
- Inventor: Mitsuhiro Wada
- Applicant: Mitsuhiro Wada
- Applicant Address: JP Kobe
- Assignee: Sumitomo Rubber Industries, Ltd.
- Current Assignee: Sumitomo Rubber Industries, Ltd.
- Current Assignee Address: JP Kobe
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2010-018752 20100129; JP2010-049243 20100305
- Main IPC: G01M17/02
- IPC: G01M17/02 ; G01L17/00 ; G06F17/00 ; B60C23/00

Abstract:
A method for detecting a tire having a decreased internal pressure by making a relative comparison of wheel speeds of tires. The method includes a step of detecting wheel rotation information of the respective tires of the vehicle; a step of calculating wheel speeds based on the detected wheel rotation information; a step of calculating a decreased pressure determination value; and a step of determining a tire having a decreased internal pressure. The method further comprises a step of setting a threshold value, in which the predetermined threshold value is set based on a decreased pressure sensitivity calculated from a relation between a load sensitivity and a decreased pressure sensitivity during vehicle turning with regard to tires that is calculated in advance and a load sensitivity obtained through a turning running during initialization.
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