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:
May. 24, 1988
Filed:
Sep. 16, 1986
Shigeyuki Kawarabayashi, Minami, JP;
Hiromi Kaneko, Minami, JP;
Horiba, Ltd., Kyoto, JP;
Abstract
A control device for a chassis dynamometer system which outputs a control signal for controlling a dynamometer on the basis of a control equation having parameters including a sensed torque and a sensed rotational speed of the dynamometer and an inertia of a vehicle to be tested and a mechanical inertia of the dynamometer system and including control coefficients, the control signal controlling said dynamometer so as to control the mechanical force to be absorbed therein when the dynamometer is connected to a rotating roller on which a driving wheel of the vehicle to be tested is placed via a shaft which is provided with a flywheel. The control device includes a circuit for automatically adjusting the control coefficients of the control equation utilized in the control device in accordance with changes in the mechanical inertia of said dynamometer system. The circuit for adjusting the control coefficients includes either a circuit for calculating the control coefficients on the basis of a function obtained from a model matching technique or a circuit for automatically adjusting the control coefficients which calculates the control coefficients on the basis of a regression function obtained experimentally.