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:
May. 10, 1983

Filed:

Oct. 15, 1980
Applicant:
Inventor:

Masamichi Ono, Yokohama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01L / ; G01M / ;
U.S. Cl.
CPC ...
7386118 ; 73117 ;
Abstract

A method for operating a test machine under a reproduced road load by using a dynamometer having its rotary portion coupled to the test machine comprises using a device for providing the same moment of inertia for the dynamometer rotary portion as that of a test machine. Speed values are stored in relation to corresponding times at which the test machine runs at the respective speed values while the test machine is coasting. The speed of rotation of the dynamometer rotary portion is controlled to meet the stored speed values at the corresponding times. During the speed control operation, load values are stored in relation to corresponding speeds at which the respective load values appear on the dynamometer rotary portion. The load produced by the dynamometer is controlled to meet the stored load values according to the speed of running of the test machine.


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