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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 10378644 B1

PDFFull Text
Date of Patent:
Aug. 13, 2019

Filed:

Mar. 07, 2016

Control device for automatic transmission for vehicle

Applicant:

Jatco Ltd, Fuji-shi, Shizuoka, JP;

Inventors:

Hiroki Iwasa, Atsugi, JP;

Tetsuya Izumi, Ayase, JP;

Assignee:

JATCO LTD, Fuji-Shi, Shizuoka, JP;

Attorney:

Foley & Lardner LLP

Primary Examiner:

Justin Holmes

Int. Cl.
CPC ...
F16H 59/06 (2006.01); F16H 59/18 (2006.01); F16H 59/40 (2006.01); F16H 59/42 (2006.01); F16H 63/50 (2006.01); B60W 40/105 (2012.01); F16H 61/662 (2006.01); F16H 61/02 (2006.01); F16H 61/08 (2006.01); F16H 61/664 (2006.01); F16H 59/44 (2006.01); F16H 59/46 (2006.01); F16H 59/70 (2006.01); F16H 57/00 (2012.01);
U.S. Cl.
CPC ...
F16H 59/06 (2013.01); B60W 40/105 (2013.01); F16H 59/18 (2013.01); F16H 59/40 (2013.01); F16H 59/42 (2013.01); F16H 61/66227 (2013.01); F16H 63/50 (2013.01); B60W 2520/28 (2013.01); F16H 59/44 (2013.01); F16H 59/46 (2013.01); F16H 61/0265 (2013.01); F16H 61/08 (2013.01); F16H 61/6645 (2013.01); F16H 2057/0012 (2013.01); F16H 2059/704 (2013.01);
Abstract

Disclosed is a control apparatus for a vehicular transmission comprising: a vehicle speed sensor; an accelerator opening angle sensor; and a gear-shift control section (D) of a CVTECU. The vehicle speed sensor includes: an output shaft rotation speed sensor () configured to detect a rotation speed (rotation numbers) of an output shaft () of the automatic transmission; road wheel rotation speed sensors configured to detect rotation speeds (rotation numbers) of four road wheels (B throughE); and a vehicle speed calculating section (B) of CVTECUconfigured to calculate the vehicle speed from the information of the road wheel rotation speeds when a preset predetermined condition as a condition under which vertical variations of the rotation speed of the output shaft are generated is established and calculate the vehicle speed from the output shaft rotation speed information if the predetermined condition is not established.

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