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.

Date of Patent:
Apr. 02, 1985

Filed:

Aug. 06, 1982
Applicant:
Inventors:

Gerald T Fattic, Anderson, IN (US);

William J Vukovich, Pittsfield Township, Washtenaw County, MI (US);

Assignee:

General Motors Corporation, Detroit, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; B60K / ; B60K / ;
U.S. Cl.
CPC ...
3644241 ; 74866 ; 474 11 ; 474 18 ;
Abstract

In a transmission mechanism having an actuator member which is movable to adjust the speed ratio of the transmission, the rate of movement of the actuator member is controlled to provide a desired overall response function. When the ratio error is less than a reference value, the actuator rate of movement is controlled as a function of speed ratio such that the overall rate of change of ratio produces stable response. When the ratio error is at or greater than the reference value, the actuator rate of movement is controlled as a function of ratio error such that the overall rate of change of ratio produces fast response consistant with driveability.


Find Patent Forward Citations

Fattic, Gerald. (1985). Continuously variable transmission ratio control system (U.S. Patent No. 4509125). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4509125

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…