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:
Apr. 24, 2001
Filed:
Apr. 08, 1999
Michael G. Cronin, Peoria, IL (US);
Brian D. Kuras, East Peoria, IL (US);
Kevin J. Lueschow, Elmwood, IL (US);
Jerry D. Marr, Metamora, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A control apparatus for a continuously variable transmission is disclosed. The control apparatus includes a transmission speed sensor which generates an actual velocity signal in response measuring speed of an output shaft of the continuously variable transmission. The control apparatus further includes a first input device, or speed pedal, which is positionable in one of an infinite number of positions and generates a desired velocity signal corresponding to the position of the speed pedal. The control apparatus yet further includes a controller operable to receive the desired velocity signal, receive the actual velocity signal, calculate a commanded acceleration a,, and generate a commanded velocity V,based on the desired velocity signal, a jerk value j, and the commanded acceleration a,. A method of controlling a continuously variable transmission is also disclosed.