The ride comfort mainly depends on whether the vehicle-seat system and the human-machine interface can provide a comfortable sitting posture for the occupant, and can effectively isolate or attenuate the vibration generated by the excitation of the road surface unevenness, so that the occupant can bear the whole body. The vibration load is below the specified limit. Depending on the activity and comfort of the occupants in the car, the comfort can be divided into static comfort, vibration comfort and activity comfort.
