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Research on Handling Stability Prediction Considering Coupling of Driver-vehicle-road System in Path Tracking Process

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    To predict the vehicle handling stability risk earlier, and to solve the problem of unknown prior information of“road”in the traditional“driver-vehicle-road”coupling system and the resulting difficulty in predicting“driver”input, a handling stability prediction method combined with the driver steering model and the vehicle nonlinear dynamics model was put forward using the forward preview path provided by advanced driver assistance systems. In this paper,firstly,a driver-vehicle-road closed-loop feedback driver model is constructed to compute the potential steering input, then the current vehicle speed and predicted steering are input into the three degrees of freedoms nonlinear dynamics model, and the prediction of handling stability state is subsequently accomplished. Finally, Simulink-Carsim co-simulation and the driver simulator in the loop are performed and compared, and the results of double-lane change, variable curvature path, and snake-shaped path show that the predicted values of thehandling stability states of the proposed method are in good agreement with the actual values.

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  • Online: July 05,2023
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