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:
Jul. 11, 1989
Filed:
Apr. 28, 1987
Renault Vehicules Industriels, Lyons, FR;
Abstract
A device for the electronic control of an actuator, particularly for transmission dog clutches. The actuator is controlled by two double-acting cylinders, a translation cylinder and a rotation cylinder. Each of the cylinders is associated therewith a system for noting the position of each cylinder, a control system that provides a digital signal representative of the desired position of each cylinder, a digital comparator for producing an error signal as a difference between the desired position and then the actual position, and a digital regulator of the proportional and derivative type which produces an instruction signal to change corresponding solenoid valve. A microprocessor acts with the digital regulator to produce internal storage and programs.