The full-car active suspension model was established to meet the changing needs of the road for vehicle running

road excitation change and car body posture were used as inputs of self adaptive fuzzy control system at rear wheel

self adaptive fuzzy control system of active suspension was designed.To verify the effectiveness of the control system

the simulation and road test of random road input and sine wave input were carried out.The results show that compared to the traditional suspension system

the peak and standard deviation of vehicle mass vertical acceleration decreased significantly

body vibration energy has declined within sensitive frequency bands in the human body

the rear body acceleration also decreased while the vehicle passing through the speed limit zone and the ride comfortly was distinctly improved.