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.:
Date of Patent:
Jun. 07, 2005
Filed:
Aug. 07, 2003
Applicants:
Kouichi Shimizu, Sagamihara, JP;
Hiroyuki Ohya, Zama, JP;
Inventors:
Kouichi Shimizu, Sagamihara, JP;
Hiroyuki Ohya, Zama, JP;
Assignee:
Nissan Motor, Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60K041/02 ;
U.S. Cl.
CPC ...
Abstract
A vehicle driving force control apparatus is provided for a vehicle to prevent a shock from being generated when a clutch disposed between a subordinate drive source and subordinate drive wheels is transferred to a disengaged state during vehicle travel. When a transition is made from a four-wheel drive state to a two-wheel drive state, and a clutch is released during vehicle travel, the motor torque is maintained constant at a level of a clutch-release torque required by the electric motor as the output for bringing the torque on the clutch substantially to zero.