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:
Nov. 27, 2012
Filed:
Dec. 06, 2005
James W. Post, Ii, Dublin, OH (US);
Theodore Klaus, Marysville, OH (US);
Xiaodi Kang, Raymond, OH (US);
James W. Post, II, Dublin, OH (US);
Theodore Klaus, Marysville, OH (US);
Xiaodi Kang, Raymond, OH (US);
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A feed forward method for controlling the distribution of torque between the front and rear axle in a four wheel drive vehicle where the slope of a hill upon which the vehicle is traveling is calculated based on measured vehicle longitudinal acceleration and estimated longitudinal acceleration. The hill slope estimation is made and implemented before the wheels of the vehicle begin to slip due to the slope and low friction coefficient of the road surface. Under conditions of high vehicle speeds or severe vehicle turning, the change of torque distribution is not implemented because there is a lesser tendency for the vehicle to slip on the hill surface.