Selecting suitable control coefficient of the non-duplicated system can synchronize the chaotic systems.

Due to the large torque coefficient, small torque ripple and ease of control, permanent magnet synchronous motor (PMSM) system has been widely used in many accurate servo control systems.

The results show that at any Angle between axes of inclined swirl control valve and crank shift, flow coefficient and inclined swirl ratio increase gradually with increase of valve opening.