Longitudinal nonlinear control study of vehicular platoon
The vehicle queue spacing control strategy,a key to reducing the energy consumption of a vehicle queue,can affect the speed stability and the following distance.As the single following distance strategy fails to meet the spacing control problem,this paper proposes a dual working condition following distance control strategy.First,according to the aerodynamic characteristics of each vehicle in a queue,a non-linear vehicle queue model with variable air resistance coefficient is built.Second,the whole queue is divided into uniform speed and variable speed conditions,and the following spacing control strategies are introduced for variable spacing and regular spacing respectively.On this basis,a nonlinear controller compatible with the two-working condition and shop distance control strategy is designed.Our simulation results show the average speed error of the nonlinear controller is reduced by 25％,and the fuel consumption of queuing vehicles is down by an average of 5.88％,demonstrating the validity and feasibility of strategy.
国家科技期刊平台
NSTL
万方数据
