多电机驱动系统扭矩能力的估算方法  

Estimated Method of Torque Capacity for the Multi-motor Driving System

作　　者：冷宏祥[1] 田武岭[1] 张鹏君[1] 

机构地区：[1]上海汽车集团股份有限公司技术中心,上海201804

出　　处：《上海汽车》2015年第8期2-6,共5页Shanghai Auto

摘　　要：文章针对新能源汽车的多电机驱动系统,介绍了一种扭矩能力的估算方法。并介绍双模式混合动力驱动系统驱动能力估算的应用。在电机限制模式下,直接将电机能力作为系统能力,简化了计算步骤,提高了运算效率;在能量源限制模式下,采用最优算法确定各电机的分配功率,再根据各电机特性能够准确估算出电驱动系统的最优扭矩能力,并将估算的各个模式下系统扭矩能力应用于运行模式的选择。For the multi - motor driving system of new energy vehicle, one method of esti- mated torque capacity is described. And the method used for the driving capacity of the dual - mode hybrid system is described. In the limiting mode of motor, the total system torque capacity can be cal- culated only by the motor capacity, so it could simplify the calculation steps and improve the operation efficiency; in the limiting mode of energy source, firstly it shall calculate the distribution of power for each motor according on the optimal algorithm, then the system torque capacity can be estimated exact- ly from the characteristic index of each motor and the power, the system torque capacity can be benefit for the driving mode selection.

关 键 词：新能源汽车 驱动系统 多电机 扭矩能力 

分 类 号：U469.7[机械工程—车辆工程]