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:
Jul. 14, 1992
Filed:
Oct. 12, 1989
Erwin Petersen, Wunstorf, DE;
WABCO Westinghouse Fahrzeugbremsen GmbH, Hanover, DE;
Abstract
This invention provides an anti-lock and/or an anti-slip apparatus for commercial-type vehicles, in which there is a front axle and two live rear axles. The apparatus includes an electronic system as part of the anti-lock and/or anti-slip system. Such electronic system is preferably a four-channel system. To improve the quality of regulation during acceleration and braking, there is an additional speed sensor for the direct or indirect monitoring of the angular velocity of the cardan shaft. The electronic system determines whether the rotational speed of the cardan shaft varies from the average speed of the monitored wheels (vehicle reference speed). If a variance is determined, the electronic system activates measures for an alarm indicator, the regulation of the retarder acting on the drive train and/or for the synchronization and subsequent locking of the longitudinal differential.