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:
Oct. 21, 2008
Filed:
Jun. 27, 2005
Ichiro Yamaguchi, Yokosuka, JP;
Yoshitaka Deguchi, Yokohama, JP;
Hideaki Inoue, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A drive force distribution system for a four wheel independent drive vehicle is configured to suppress changes in longitudinal and lateral accelerations and change in yaw moment about the center of gravity of the vehicle that occur when the brake/drive force of one wheel changes or is changed deliberately. The drive force distribution system is configured such that when the brake forces and the drive forces determined by the brake/drive force determining section based on the motion requirements of the vehicle are to be changed, the drive force revising section revises the brake/drive forces of the left front wheel, the right front wheel, the left rear wheel, and the right rear wheel by amounts, respectively, based on the sensitivities of the tire lateral forces of each of the wheels estimated by the tire lateral force sensitivity estimating section so as to satisfy the motion requirements of the vehicle.