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:
Jun. 11, 2019
Filed:
Feb. 03, 2016
Jatco Ltd, Fuji-shi, Shizuoka, JP;
Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa, JP;
Kosuke Abe, Isehara, JP;
Shin Tsukamoto, Isehara, JP;
Seiichiro Takahashi, Isehara, JP;
Hiroyasu Tanaka, Atsugi, JP;
JATCO Ltd, Fuji-shi, JP;
NISSAN MOTOR CO., LTD., Yokohama-shi, JP;
Abstract
CVT controller has rotation speed sensors detecting driving and driven wheel rotation speed; driving and driven wheel speed difference detection unit detecting wheel speed difference Δvfr; and bad road judgment unit judging that road is bad road when Δvfr is first value Δvfr_br or greater. CVT controller further has first belt clamping force increase unit increasing belt clamping force in case where road is judged to be bad road, as compared with case where road is not judged to be bad road; vibration detection unit detecting vehicle speed vibration fvsp; and second belt clamping force increase unit increasing belt clamping force when Δvfr is second value Δvfr_psec or greater or when fvsp is third value fvsp_psec or greater in case where road is not judged to be bad road, as compared with case where Δvfr is less than Δvfr_psec and case where fvsp is less than fvsp_psec.