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:
May. 08, 1990
Filed:
Oct. 19, 1987
Heribert Lanzer, Gossendorf, AT;
Steyr-Daimler-Puch AG, Vienna, AT;
Abstract
An all-wheel driven motor vehicle capable of operating in an understeering or an oversteering condition comprises a front axle, a rear axle, and an interaxle differential comprising a planetary gear system, a releasable coupling, and a liquid friction coupling. The planetary gear system includes an input member connected to the motor of the vehicle, a first output member connected to the front axle, and a second output member connected to the rear axle. The releasable coupling interconnects the first and second output members. The liquid friction coupling is disposed between the first output member and the front axle. The three-torque transmitting members of the planetary gear system are selected so that when the releasable coupling is disengaged, the vehicle operates in an understeering condition under normal running conditions. When the releasable coupling engages the first and second output members together, the liquid friction coupling reduces the torque supplied to the front axle so that the vehicle operates in an oversteering condition.