针对双电机驱动的纯电动客车转矩分配问题,采用模拟退火和粒子群的混合优化算法以寻求转矩分配后整车能耗最小的方案。通过对双电机客车整车结构和性能参数的分析,确定了计算整车能耗的数学模型,在满足整车需求转矩的前提下,根据电机转...针对双电机驱动的纯电动客车转矩分配问题,采用模拟退火和粒子群的混合优化算法以寻求转矩分配后整车能耗最小的方案。通过对双电机客车整车结构和性能参数的分析,确定了计算整车能耗的数学模型,在满足整车需求转矩的前提下,根据电机转速和效率特性并引入模拟退火和带压缩因子的粒子群算法相结合的优化算法对双电机需求转矩进行分配。对该方法进行了中国典型城市公交循环(China city bus cycle,CCBC)工况的仿真和台架试验,结果表明:该算法实现了对电动客车双电机系统转矩的优化分配,整车在1个循环工况下的能耗降低了3.2%。展开更多
Based on analyzing the structure and working principle on electric vehicles （EVs） with dual motors coupled by planetarY gears, the control strategy of mode switching was proposed. The power interruption problem on E...Based on analyzing the structure and working principle on electric vehicles （EVs） with dual motors coupled by planetarY gears, the control strategy of mode switching was proposed. The power interruption problem on EVs with automatic mechanical transmission （AMT） shifting was resolved. Based on the speed-torque characteristics of the planetary gears and the principle of the auxiliary motor＇ s zero speed braking, control features of mode switching were introduced. The mode shifting between the main motor mode and dual motors coupled driving were studied. Matlab/Simulink was adopted as a platform to develop the simulation model of EVs with dual motors drive system and 3 gears AMT. Simulation results demonstrated that the power interruption of dual motors drive system was solved during mode switching. The power requirements of EVs were satisfied, too.展开更多
文摘针对双电机驱动的纯电动客车转矩分配问题,采用模拟退火和粒子群的混合优化算法以寻求转矩分配后整车能耗最小的方案。通过对双电机客车整车结构和性能参数的分析,确定了计算整车能耗的数学模型,在满足整车需求转矩的前提下,根据电机转速和效率特性并引入模拟退火和带压缩因子的粒子群算法相结合的优化算法对双电机需求转矩进行分配。对该方法进行了中国典型城市公交循环(China city bus cycle,CCBC)工况的仿真和台架试验,结果表明:该算法实现了对电动客车双电机系统转矩的优化分配,整车在1个循环工况下的能耗降低了3.2%。
基金Supported by Doctoral Fund of Ministry of Education of China(20101101110012)the National Natural Science Foundationof China(51175040)
文摘Based on analyzing the structure and working principle on electric vehicles （EVs） with dual motors coupled by planetarY gears, the control strategy of mode switching was proposed. The power interruption problem on EVs with automatic mechanical transmission （AMT） shifting was resolved. Based on the speed-torque characteristics of the planetary gears and the principle of the auxiliary motor＇ s zero speed braking, control features of mode switching were introduced. The mode shifting between the main motor mode and dual motors coupled driving were studied. Matlab/Simulink was adopted as a platform to develop the simulation model of EVs with dual motors drive system and 3 gears AMT. Simulation results demonstrated that the power interruption of dual motors drive system was solved during mode switching. The power requirements of EVs were satisfied, too.
