logo

For the Inventor, By the Inventor

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.:

US 11204096 B1

PDFFull Text
Date of Patent:
Dec. 21, 2021

Filed:

Feb. 28, 2019

Control device for automatic transmission and control method for automatic transmission

Applicants:

Jatco Ltd, Fuij, JP;

Nissan Motor Co., Ltd., Yokohama, JP;

Inventor:

Kazuki Hirasako, Tokyo, JP;

Assignees:

Jatco Ltd., Fuji, JP;

NISSAN MOTOR CO., LTD., Yokohama, JP;

Attorney:

Global IP Counselors, LLP

Primary Examiner:

Roger L Pang

Int. Cl.
CPC ...
F16H 61/16 (2006.01); F16H 59/18 (2006.01); F16H 59/44 (2006.01); F16H 59/48 (2006.01); F16H 59/56 (2006.01); F16H 59/36 (2006.01);
U.S. Cl.
CPC ...
F16H 61/16 (2013.01); F16H 59/18 (2013.01); F16H 59/44 (2013.01); F16H 59/48 (2013.01); F16H 59/56 (2013.01); F16H 2059/366 (2013.01);
Abstract

A control device for an automatic transmission arranged between an engine and a drive wheel, the automatic transmission including a torque converter having a lock-up clutch, and a transmission mechanism. The control device includes a shift control unit configured to perform shift control of the transmission mechanism. The shift control unit includes a forced downshift control processing unit configured to implement forced downshift when an accelerator foot release operation is performed during auto-upshift in a power-on state with the lock-up clutch engaged. The forced downshift control processing unit is configured to start the forced downshift before an engine rotation speed that has decreased due to the auto-upshift reaches a lock-up release rotation speed.

Find Patent Forward Citations

Hirasako, Kazuki. (2021). Control device for automatic transmission and control method for automatic transmission (U.S. Patent No. 11204096). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11204096

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…