| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent occurrence of overshoot of engine rotation due to command response delay even if an integration term is included when applying feedback control to an engine so that the number of rotations thereof matches a target. <P>SOLUTION: A calculation unit 38 obtains a target throttle opening fbTVO by totalling a proportional control quantity (ΔNe×Kp), a differential control quantity äΔNe(d/dt)×Kd}, and an integration control quantity äΔNe(1/s)×Ki}, corresponding to a deviation ΔNe of an actual number of rotations Ne of the engine 4 against the target number of rotations tNe of the engine 4. A calculation unit 39 obtains engine torque (power generation load torque) necessary for achieving a power generation output command value tTg on the basis of the current number of the rotations Ne of the engine 4, obtains a throttle opening for achieving the command value tTg from a planned three-dimensional map showing relationships among the engine torque, the number of the rotations Ne of the engine 4 and a throttle opening achieving the command value tTg, and then, defines this throttle opening as the target throttle opening ΔfbTVO. An adder 40 corrects the target throttle opening fbTVO by adding the opening ΔfbTVO thereto, and commands a corrected target throttle opening tTVO (=fbTVO+ΔfbTVO) to a throttle valve 4a of the engine 4. <P>COPYRIGHT: (C)2009,JPO&INPIT |
