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:
Nov. 27, 2012
Filed:
Feb. 19, 2010
Akira Kikuchi, Hitachi, JP;
Motoo Futami, Hitachioota, JP;
Toshikazu Minoshima, Kasumigaura, JP;
Tomohiko Yasuda, Kashiwa, JP;
Takayuki Sato, Kashiwa, JP;
Kichio Nakajima, Kasumigaura, JP;
Akira Kikuchi, Hitachi, JP;
Motoo Futami, Hitachioota, JP;
Toshikazu Minoshima, Kasumigaura, JP;
Tomohiko Yasuda, Kashiwa, JP;
Takayuki Sato, Kashiwa, JP;
Kichio Nakajima, Kasumigaura, JP;
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Abstract
A vehicle which evaluates tire wear properly even in a road condition that tires easily slip or lock up. The vehicle, which has a driven wheel and a driving wheel with tires attached thereto, includes: a revolution speed detector for detecting revolution speeds of the driven and driving wheels; a wheel speed detector for detecting wheel speeds of the driven and driving wheels based on the detected revolution speed data of the driven and driving wheels; a wheel speed ratio detector for detecting a wheel speed ratio between the driven and driving wheels based on the detected wheel speed data of the driven and driving wheels; and a tire condition evaluator for outputting an evaluation result indicating that the tire(s) attached to the driven wheel and/or driving wheel is(are) worn when the wheel speed ratio is higher than a preset threshold.