In order to enhance the friendliness of driver-automation cooperative lateral control system, a novel shared lateral control algorithm considering driver group characteristics was proposed. Firstly, a driver imitated steering model was introduced, and then the linear-varying closed-loop driver-vehicle-road model was established. Secondly, for the purpose of handling disturbance factors such as time-varying model parameters, large road curvature, and the insufficient adaptation of linearization of nonlinear vehicle dynamics, a predictive controller based on linear time-varying model predictive control (LTV-MPC) framework was designed. Thirdly, a driver-automation cooperative factor model was constructed according to the aggregate lateral error as well as lateral offset sensitivity of different driver groups, aiming to achieve differentiation adjustment of the intervention or assistance degree from the intelligent system during the co-driving. Finally, the comparative experimental results demonstrate that the shared lateral control algorithm exhibits excellent group adaptability and enhances driver-automation friendliness while ensuring path-tracking accuracy.
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