The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 31, 2007
Filed:
Jun. 06, 2005
Yuji Oshiro, Kobe, JP;
Kazuyoshi Miyamoto, Kobe, JP;
Yuji Oshiro, Kobe, JP;
Kazuyoshi Miyamoto, Kobe, JP;
Sumitomo Rubber Industries, Ltd, Kobe-shi, JP;
Abstract
A tire deflation warning system, including a device for detecting a rotational velocity of a wheel attached to a vehicle and a device for judging a tire pneumatic pressure drop by determining a reduced pressure judging value that judges the tire pneumatic pressure drop made of difference of rotational velocity sum of two pairs of the wheels which are diagonally disposed in the vehicle, correcting the reduced pressure judging value by multiplying a weight coefficient that continuously varies according to the velocity of the vehicle, and comparing the corrected reduced pressure judging value with a threshold value, wherein it is tentatively judged whether or not there is a reduced pressure wheel; and in the case when it is tentatively judged that a driving wheel is being reduced pressure, the reduced pressure judging value is multiplied by the weight coefficient which is larger than in the case when it is tentatively judged that a driven wheel is being reduced pressure.