太阳能赛车能量流建模仿真和实验研究

为制定太阳能赛车高效能量管理策略,以太阳能赛车为研究对象,建立考虑光伏电池温度、空气密度、胎压、悬架阻尼等时变参数的整车模型,设计了基于带遗忘因子的递推最小二乘法在线道路坡度估计算法,建立了整车MATLAB/Simulink模型,仿真研究了巡航速度、整车质量和轮胎压力参数变化对于整车能耗特性的影响,并进行了实验验证。实验结果表明上述模型能够真实反应车辆和环境参数变化对于整车能耗的影响,为后续太阳能赛车能量策略的制定奠定了基础。

Simulation and Experimental Study of Energy Flow Model of a Solar Racing Car

In order to develop an efficient energy management strategy for solar racing car,a new energy flow model considering time-varying parameters and an online road gradient estimation algorithm based on recursive least squares algorithm with forgetting factor(FFRLS)are proposed in this paper.The model and algorithm were imple-mented with MATLAB/Simulink and the effects of parameters such as cruising speed,vehicle quality and tire pres-sure on the energy consumption characteristics of the vehicle were simulated.A series of road experiments were car-ried out to verify the simulation conclusions.The experimental results show that the model and algorithm can truly re-flect the impact of vehicle and environmental parameter changes on vehicle energy consumption,laying the foundation for the development of subsequent WSC competition strategies.