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. 31, 1993
Filed:
May. 21, 1992
Applicant:
Inventors:
Wolfgang Zaiser, Steinheim, DE;
Gerhard Wagner, Remseck, DE;
Assignee:
Mercedes-Benz AG, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60K / ; B60K / ;
U.S. Cl.
CPC ...
74869 ; 74867 ; 74868 ; 74335 ;
Abstract
An automatic selector device for a multi-gear change-speed gearbox permits selection of the gears by a respective gear apparatus, e.g., clutch or brake, which is actuated by a selector actuator. The operating pressure of the selector actuator is switched on and off in each case by a selector valve. The selector valves are connected to a multi-path control valve for actuation by way of a control pressure force, and the control valve is actuated by an electromotive valve actuator whose operation depends on an electronic control unit.