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:
Mar. 10, 2015
Filed:
Oct. 18, 2011
Applicants:
Mitsuhiro Kishino, Hadano, JP;
Tsubura Aihara, Isehara, JP;
Hiroshi Sugiyama, Fujisawa, JP;
Inventors:
Assignees:
JATCO Ltd, Fuji-shi, JP;
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M 13/02 (2006.01); G01M 17/007 (2006.01);
U.S. Cl.
CPC ...
G01M 13/021 (2013.01); G01M 13/022 (2013.01); G01M 17/007 (2013.01);
Abstract
An evaluation unit includes a front-rear acceleration sensor and an up-down acceleration sensor. The evaluation unit calculates a length of a track obtained by plotting detected front-rear and up-down accelerations on a three-dimensional space along a time axis within a period from gear shift start of an automatic transmission to gear shift end, calculate a track length per unit time by dividing the length of the track by a time interval from the gear shift start to the gear shift end, and evaluates that a gear shift shock is larger as the track length per unit time is longer.