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:
Oct. 22, 1985
Filed:
Jan. 26, 1983
Mayez Al Mouhamed, Talkalakh, SY;
Commissariat a l'Energie Atomique, Paris, FR;
Abstract
A control system having the structure of a loop controls the shaft angular position of a motor driving a load in the situation wherein the inertia of the load, as referred back to the rotational axis of the motor, is variable. The system includes a computer providing values of gain, damping, and inertia which are used as multiplicative factors in processing a loop error signal. The error signal is the difference between a desired motor shaft position and the actual shaft position. Parallel multiplying branches, one of which includes a derivative circuit, are utilized for forming products of error signal and the derivative thereof by the gain and damping factors provided by the computer. The products are summed and provided as a drive signal to the motor. The drive signal may also include a second derivative of the desired shaft position, and may be scaled by the computed inertia.