To improve stability of mixed platoon,car-following model of intelligent connected vehicles was studied.Firstly,focusing on shortcomings of original model of connected automated vehicles,an improved car-following model of connected automated vehicles was proposed,from the perspective of desired spacing and feedback information from multiple vehicles.Then the mixed platoon was defined,based on which stability criterions related with scale and speed were derived under the original and improved models.Finally,the stability criterions were used to compare impacts of the original and improved models on stability of the mixed platoon.Research results show that compared with the original model,the improved model can obviously reduce instability regions of the mixed platoon.Moreover,the improved model can increase the platoon scale by 54.55%at least,in which the mixed platoon will be still stable for all possible speed.Results obtained in this paper can provide a reference for simulations and management of connected automated vehicles in the future.
维普
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