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:
Jan. 18, 1983
Filed:
Aug. 22, 1980
Michael Meyerle, Meckenbeuren, DE;
Friedrich Ehrlinger, Friedrichshafen, DE;
Zahnradfabrik Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A hydrostatic transmission coupled with a gear transmission for operating a motor vehicle driven by an internal combustion engine has its accelerator pedal connected to the throttle valve of the engine and to the servovalve of the stepless hydrostatic transmission via an engine characteristic storage which modulates the accelerator travel signal applied to the servovalve to optimize the fuel consumption. The servovalve also receives input from an electric signal comparator which compares the engine speed with an output signal from the output unit of the hydrostatic transmission or the output shaft of the gear transmission.