| 摘要 |
PROBLEM TO BE SOLVED: To allow an active vibration isolating support device to develop an effective vibration isolation performance according to the vibration characteristics of an engine. SOLUTION: A crank pulse is read by a crank pulse sensor, a crank angular velocity calculated from the time interval thereof is differentiated with respect to a time to calculate the crank angular velocity, and an inertia moment is multiplied by the crank angular velocity to calculate the torque of the engine. Next, the amplitude of engine vibration is calculated as the maximum and minimum deviations of the torque, and when the amplitude is less than a set value, the actuator of the active vibration isolating support device is controlled based on the calculated amplitude and a pre-set phase. When the amplitude is equal to or higher than the set value, the phase of the engine vibration is calculated from a phase where the torque becomes the maximum, and the actuator of the active vibration isolating support device is controlled based on the calculated amplitude and the calculated phase. |
