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. 16, 1993
Filed:
Apr. 18, 1991
Applicant:
Inventor:
Yasunari Nakayama, Hiroshima, JP;
Assignee:
Mazda Motor Corporation, Hiroshima, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K / ;
U.S. Cl.
CPC ...
36442405 ; 180197 ; 280 91 ;
Abstract
The torque distribution for four wheels is controlled corresponding to the operating conditions of a car. There are provided a plurality of control systems such as a system for controlling the torque distribution for front and rear wheels, a system for controlling the torque distribution for right and left wheels, and the like. When the torque required for predetermined torque distribution exceeds the excess torque of an engine, the priority of the control systems to execute the control is changed depending on a friction coefficient caused between the road and tires.