CONTROL METHOD OF ENGINE BENCH SYSTEM

摘要

PROBLEM TO BE SOLVED: To enable stable control when spring rigidity of a shaft largely changes while having resonant suppression effect. SOLUTION: An engine bench system couples a test engine 1 and a dynamo meter 2 with a coupling shaft 3 and controls the dynamo meter by shaft torque. A controller 5 includes an integration element having an integration coefficient KIin a deviation (T12r-T12) between a shaft torque command T12r of the dynamo meter and a shaft torque detection value T12, a differentiating element having a differentiating coefficient KDin the shaft torque detection value T12, and a proportional element having a proportional coefficient KPin the shaft torque detection value T12, and subtracts the differentiating element and the proportional element from the integration element to obtain a torque control signal T2. Control parameters (KI, KP, KD, f1) are determined in control characteristics parameters (a4, a3, a2, a1) set in a function calculation part 6 and inertia moments J1, J2 of the engine and the dynamo meter and the spring rigidity K12 of the shaft. COPYRIGHT: (C)2009,JPO&INPIT