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1. US20100251811 - Engine bench system control system

Office États-Unis d'Amérique
Numéro de la demande 12742383
Date de la demande 18.11.2008
Numéro de publication 20100251811
Date de publication 07.10.2010
Numéro de délivrance 08006548
Date de délivrance 30.08.2011
Type de publication B2
CIB
G01M 15/00
GPHYSIQUE
01MÉTROLOGIE; TESTS
MTEST D'ÉQUILIBRAGE STATIQUE OU DYNAMIQUE DES MACHINES OU DES STRUCTURES OU DES OUVRAGES; TEST DES STRUCTURES, DES OUVRAGES OU DES APPAREILS, NON PRÉVU AILLEURS
15Test des moteurs
Déposants Meidensha Corporation
Inventeurs Akiyama Takao
Sawada Yoshimasa
Kanke Masayasu
Mandataires Foley & Lardner LLP
Données relatives à la priorité 2007309981 30.11.2007 JP
Titre
(EN) Engine bench system control system
Abrégé
(EN)

It is a challenge to make it possible to produce a resonance suppression effect, and perform a stable control even in a case where a spring rigidity of a shaft significantly varies. The challenge is achieved as follows. In an engine bench system in which an engine 1 to be tested and a dynamometer 2 are coupled together by a coupling shaft 3, and a shaft torque control of the dynamometer is performed, a controller 5 includes: an integral element having an integral coefficient KI for a deviation (T12r−T12) between a shaft torque command T12r and a measured shaft torque T12; a differential element having a differential coefficient KD for the measured shaft torque T12; and a proportional element KP for the measured shaft torque T12. The controller 5 obtains a torque control signal T2 by subtracting the differential element and the proportional element from the integral element. Control parameters (KI, KP, KD, f1) are determined according to control characteristic parameters (a4, a3, a2, a1) set in a function calculation section 6, inertia moments J1, J2 of the engine and the dynamometer, and spring rigidity K12 of the coupling shaft.

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