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:
Mar. 04, 2003
Filed:
Oct. 19, 2001
Bruno Hoess, Ottersweier, DE;
Helmut Schäfer, Ketsch, DE;
Nicolai Tarasinski, Frankenthal, DE;
Peter Falck, Waterloo, IA (US);
Timothy Kilworth, Waverly, IA (US);
Uwe Kugler, Cedar Falls, IA (US);
Deere & Company, Moline, IL (US);
Abstract
A control device for the parking lock of a motor vehicle has at least one actuating drive ( ) that can be operated by triggering devices and with which a locking device ( ) can be moved between engaged and disengaged positions. For reliable operation, at least two independent triggering devices are provided and a change in position takes place only if both triggering devices ( ) are actuated. Preferably a hydraulic piston ( ) brings the parking lock into its disengaged position when subjected to pressure. The triggering devices are constructed as solenoids ( ) under the control of two electrical controllers ( ) that undertake an evaluation of relevant control and measurement parameters.