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:
Jul. 12, 2016

Filed:

Jun. 12, 2012
Applicants:

Ryuichi Murakami, Wako, JP;

Jiro Hara, Wako, JP;

Nor Hairuddin, Wako, JP;

Yusuke Sakaguchi, Wako, JP;

Naoharu Takatani, Wako, JP;

Inventors:

Ryuichi Murakami, Wako, JP;

Jiro Hara, Wako, JP;

Nor Hairuddin, Wako, JP;

Yusuke Sakaguchi, Wako, JP;

Naoharu Takatani, Wako, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D 17/02 (2006.01); B60K 23/08 (2006.01); B60K 28/16 (2006.01); B60K 17/35 (2006.01);
U.S. Cl.
CPC ...
G05D 17/02 (2013.01); B60K 23/0808 (2013.01); B60K 28/165 (2013.01); B60K 17/351 (2013.01); B60W 2510/20 (2013.01); B60W 2510/207 (2013.01);
Abstract

Provided is a driving force control device for a four-wheel-drive vehicle that can evade an occurrence of excessive understeer and oversteer in situations unintended by the driver, by appropriately controlling driving forces to be distributed to sub-drive wheels. The driving force distribution device of the four-wheeled vehicle controls driving force to be distributed to the rear wheels (Wr, Wr) by the clutch () for front-and-rear torque distribution so that the wheels (Wf, Wf) are main drive wheels and the rear wheels (Wr, Wr) are sub-drive wheels. The driving force distribution device is adapted to perform control to restrict the upper limit of the four-wheel drive torque based upon an estimated driving force and steering angle of the vehicle, when calculating four-wheel drive torque to be distributed to the rear wheels (Wr, Wr) by the driving force distribution device ().


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