摘要
对于三个电机分别驱动三个车桥的电传动车辆,将驱动力的分配问题抽象为数学模型,综合考虑驱动电机系统的效率．使用约束优化方法中的复合形法计算得到系数矩阵,作为最优驱动力分配控制策略的核心．经仿真分析,采用优化算法得到的分配系数矩阵在运行过程中可以提高车辆电机驱动系统的效率,进而提高整车驱动经济性．
Electric vehicle is driven by electric motors and the motor＇ s efficiency has a direct impact on the vehicle economics. Based on the theory of vehicle dynamics, driving force distribution （DFD） is abstracted to a mathematic model taking the motor＇ s efficiency into account. The core of optimized DFD strategy is coefficient matrix which is calculated by complex -shape method in optimization theory. The DFD strategy increases efficiency of driving motor system and improves economics of vehicle.
出处
《车辆与动力技术》
2007年第1期49-51,55,共4页
Vehicle & Power Technology
关键词
电动车
驱动力分配
复合形法
electric drwing vehicle
driving force distribution （DFD）
complex -shape method
