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:
Feb. 12, 1991

Filed:

Jun. 19, 1986
Applicant:
Inventors:

Etsuo Fujii, Saitama, JP;

Makoto Sato, Saitama, JP;

Seiichi Hirai, Saitama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K / ; B60T / ;
U.S. Cl.
CPC ...
180233 ; 180244 ; 180247 ; 180249 ; 192 / ; 303110 ;
Abstract

A four-wheel-drive vehicle in which the brakes are individually controlled to prevent locking. According to the invention, during anti-locking brake, the torque transmitted between the front and rear wheels is reduced, either by disconnecting the inter-axle transmission or switching to a loosely coupled viscous coupling.


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