| 摘要 |
PURPOSE:To eliminate the influence of vibration from other than an engine so as to perform accurate vibration reduction control by detecting vehicle vibration from other than the engine, and correcting a convergence factor to a smaller value when the vehicle vibration is greater than a predetermined value. CONSTITUTION:A control means 22 receives a reference signal based on vibration of engine 2 and a signal of a vehicle vibration detection means 11 and, according to the reference signal, produces a signal for causing vibration of a specific vibrating element of a vehicle in the opposite phase to and at the same amplitude as vehicle vibration. A convergence factor setting means 32 sets a factor so that the signal from the detection means 11 is made small and a drive signal is subjected to feedback correction so as to control an actuator 3. In this case, the vehicle vibration other than that of the engine 2 is detected by a detection means 12 as disturbance and a correction means 36 causes the convergence factor setting means 32 to correct the factor to a smaller value when the vehicle vibration is greater than a predetermined value. Renewal of numerical control values is therefore achieved in a small width, and even if the disturbance is great, turbulence of control can be prevented and vibration reduction control can be performed accurately. |
