Abstract
In light of all kinds of different force feedback models adopted in the automotive driving simulator steering wheel system,the feasibility of unification and simplification of force feedback models was discussed.The second-order system model mainly consisting of torque motor and damper was built.The torque motor was linear controlled.Related parameters were given to simulate the model.And then,the work process of drivers' steering wheel operation was considered a loss of physical energy.From the view of ergonomics,physical energy loss feedback regulation was applied in the torque motor linear control law.The energy loss formula of the operation process was given.Steering wheel force feedback model based on energy feedback control was found.The model was simulated with MATLAB.Results showed that the model can effectively regulate motor output torque,the more energy loss,the more effortless of steering wheel operation.The research results of this paper show that the steering wheel system model based on physical energy loss feedback regulation fits the physiological characteristics of human body gradual fatigue with good results.
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