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.

Date of Patent:
May. 07, 2019

Filed:

Jul. 18, 2017
Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;

Inventors:

Norihiro Tsukamoto, Toyota, JP;

Tomohiro Asami, Nisshin, JP;

Keisuke Ota, Toyota, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 61/12 (2010.01); F16H 63/50 (2006.01); F02D 41/02 (2006.01); F16H 61/06 (2006.01); F16H 61/686 (2006.01);
U.S. Cl.
CPC ...
F16H 63/502 (2013.01); F02D 41/023 (2013.01); F02D 41/0225 (2013.01); F16H 61/061 (2013.01); F16H 61/686 (2013.01); F16H 2061/124 (2013.01);
Abstract

When an engagement-side clutch taking charge of rotation control in a downshift is the same as a rotation control clutch in the previous gear shift or a clutch of which the engagement has been switched in the previous gear shift, there is a likelihood that clutch hydraulic controllability will decrease and the clutch hydraulic controllability is secured by delaying start of the gear shift. It is possible to execute a gear shift which is a downshift without unnecessary waiting by setting a delay time by which the start of the gear shift is delayed depending on an accelerator depression amount such that the delay time is shorter when the accelerator depression amount is small than when the accelerator depression amount is large.


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