发明授权
US07868749B2 Method and apparatus for detecting decrease in tire air pressure and program for determining decrease in tire air pressure
有权
用于检测轮胎气压降低的方法和装置以及用于确定轮胎气压降低的程序
- 专利标题： Method and apparatus for detecting decrease in tire air pressure and program for determining decrease in tire air pressure
- 专利标题（中）： 用于检测轮胎气压降低的方法和装置以及用于确定轮胎气压降低的程序
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申请号： US12408089申请日： 2009-03-20
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公开(公告)号： US07868749B2公开(公告)日： 2011-01-11
- 发明人: Kazuyoshi Miyamoto , Minao Yanase
- 申请人： Kazuyoshi Miyamoto , Minao Yanase
- 申请人地址： JP Kobe-shi
- 专利权人： Sumitomo Rubber Industries, Ltd.
- 当前专利权人： Sumitomo Rubber Industries, Ltd.
- 当前专利权人地址： JP Kobe-shi
- 代理机构： Birch, Stewart, Kolasch & Birch, LLP
- 优先权： JP2008-073418 20080321
- 主分类号： B60C23/00
- IPC分类号： B60C23/00
摘要：
The method includes: a step of calculating wheel rotation information; a judgment step of judging a decrease in a tire air pressure by comparing a predetermined reference value with a decreased pressure judgment value showing a wheel speed ratio of the front and rear axes; an initialization step of storing the wheel speed ratio between the front and rear axes at the regular internal pressure; and a step of determining whether the distribution of the front and rear driving torque is equidistribution or not.
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