Study on Testing Method and Testing System of Vehicle Suspensions Performance

Based on automobile suspension vibration mechanical model and kinematic equation,evaluation indexes for the suspension performance are analyzed and ideutified and improved suspension testing method is proposed develop the automobile suspension performance test system with virtual instrument technology combined with PC-DAQ scheme.On the traditional automobile suspension prompting test table,some necessary sensors are added as well as personal computer and the virtual software to make the vibration test system capable of measuring the vibration absorption efficiency,the vibration efficiency,the swing and the vibration wave shape and so on.It also provides the gist integrated evaluation and diagnosis of the suspensions system.Practical car test proved that the theoretical model is credible and feasible and the testing system is accurate and reliable.