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:
Aug. 07, 2018
Filed:
Jan. 08, 2016
Meidensha Corporation, Tokyo, JP;
Takao Akiyama, Tokyo, JP;
Nobuhiko Asakura, Tokyo, JP;
Meidensha Corporation, Tokyo, JP;
Abstract
To provide a dynamometer control device whereby excitation control can be performed so that a resonance phenomenon does not occur even when the moment of inertia of an engine is unknown. A dynamometer control deviceis provided with an excitation signal generating unitfor generating a randomly or periodically fluctuating excitation signal, a speed controllerfor generating an input signal to a dynamometer whereby a dynamo rotation speed matches a predetermined dynamo command rotation speed, a shaft torque compensatorfor generating an input signal to the dynamometer whereby vibration of a shaft for connecting an engine and the dynamometer is suppressed using the detection value of a shaft torque sensor, and an adderfor generating a torque electric current command signal by adding the input signals generated by the speed controllerand the shaft torque compensatorto the excitation signal.