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:
Jan. 10, 2017

Filed:

Dec. 15, 2015
Applicant:

Yamaha Hatsudoki Kabushiki Kaisha, Iwata-shi, Shizuoka-ken, JP;

Inventor:

Takashi Fujita, Iwata, JP;

Assignee:

YAMAHA HATSUDOKI KABUSHIKI KAISHA, Iwata-shi, Shizuoka-ken, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60W 10/02 (2006.01); B60W 10/10 (2012.01); B60W 30/18 (2012.01); F16H 59/40 (2006.01); F16H 59/54 (2006.01); F16H 61/02 (2006.01); F16H 59/50 (2006.01);
U.S. Cl.
CPC ...
B60W 30/18 (2013.01); B60W 10/02 (2013.01); B60W 10/10 (2013.01); F16H 59/40 (2013.01); F16H 59/54 (2013.01); F16H 61/0213 (2013.01); B60W 2520/10 (2013.01); B60W 2520/28 (2013.01); B60W 2710/021 (2013.01); B60W 2710/1005 (2013.01); F16H 2059/405 (2013.01); F16H 2059/506 (2013.01); F16H 2061/0239 (2013.01);
Abstract

A transmission system for vehicle includes a clutch disposed in a power transmission path between an engine and a vehicle wheel, a transmission disposed in the power transmission path, a clutch actuator, a shift actuator, a vehicle wheel speed sensor, a sudden deceleration detecting unit that detects a sudden deceleration of the vehicle wheel based on an output signal of the vehicle wheel speed sensor, and a shift control unit. The shift control unit executes an ordinary shift control to shift to a speed adaptive shift stage associated with the rotational speed and to execute, when the sudden deceleration detecting unit detects the sudden deceleration of the vehicle wheel, a sudden deceleration adaptive shift control to shift to a shift stage lower than an actual shift stage at the point of detection of the sudden deceleration and higher than the speed adaptive shift stage associated with the rotational speed.


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