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:
Mar. 16, 2021
Filed:
Nov. 22, 2018
Meidensha Corporation, Tokyo, JP;
Takao Akiyama, Tokyo, JP;
Meidensha Corporation, Tokyo, JP;
Abstract
This method for controlling an engine bench system is provided with: a speed control step in which speed control of a dynamometer is executed while an engine is maintained in a non-ignition state, and in which the speed control is ended when the rotational speed of the dynamometer has increased to a prescribed speed; a measuring step in which a shaft torque detection signal is acquired during a period from when, as a result of inertia, the rotational speed of the dynamometer is a prescribed measuring start speed until said rotational speed reaches a prescribed measuring end speed; a frequency analyzing step in which the frequency of the signal having the strongest intensity, from among the shaft torque detection signals acquired in the measuring step, is acquired as a resonant frequency; a design step in which a control gain of a dynamometer control device is determined using the acquired resonant frequency.