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:
Jun. 21, 2022

Filed:

Dec. 04, 2017
Applicant:

Honda Motor Co., Ltd., Tokyo, JP;

Inventors:

Masaru Komatsubara, Wako, JP;

Masatoshi Noguchi, Wako, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K 23/08 (2006.01); B60K 17/346 (2006.01); B60K 17/344 (2006.01);
U.S. Cl.
CPC ...
B60K 23/0808 (2013.01); B60K 17/344 (2013.01); B60K 17/3462 (2013.01); B60K 2023/0816 (2013.01);
Abstract

Provided is a torque control device for a four-wheel-drive vehicle that can stably output a minimum torque required to start or drive the vehicle to the auxiliary wheel side under a road surface condition that main driving wheels are stuck in the idling state or under a road surface condition equivalent thereto. When front wheels Wf, Wfare judged to be stuck in the idling state, a current rear torque TrCMD is raised step by step. And, when a brake operates in the state in which the four wheels are at stop after raising the command torque TrCMD step by step, the command rear torque TrCMD is released. And, the command rear torque TrCMD is raised step by step when the command rear torque TrCMD continues to be released for a second threshold time.


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