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:
Aug. 22, 1989
Filed:
Apr. 29, 1988
Manfred Bantle, Vaihingen/Enz, DE;
Dr. Ing. h.c.F. Porsche Aktiengesellschaft, Stuttgart, DE;
Abstract
For improving the load-change behavior of a four-wheel drive motor vehicle when driving through curves, the vehicle is provided with a longitudinal clutch continuously controllable and with a lockable differential continuously controllable in its locking action. The activation of the longitudinal clutch takes place in the first instance in dependence on velocity whereas the activation of the lockable differential is undertaken in the first instance in two stages dependent on power output whereby a velocity-dependent characteristic can additionally be super-imposed on this power output dependent control.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile