并联混合动力汽车驱动模式切换扭矩协调控制

Torque coordination algorithm for driving mode-transition of PHEV

以并联混合动力汽车为研究对象,对驱动模式切换过程中发动机和电机的扭矩协调控制问题进行研究.采用Matlab/Simulink建立混合动力汽车动力系统动态模型和控制策略.在模式切换过程中采用输入冗余系统的无扰动切换控制算法协调控制发动机和电机转矩,建立了输入冗余系统动态分配控制器并匹配了控制器参数.计算机仿真结果表明:输入冗余系统的无扰动切换控制算法能够显著降低模式切换过程中整车的冲击度,提高了混合动力汽车驾驶舒适性.

A parallel hybrid vehicle was researched. The coordination control of the engine torque and motor torque in mode switching process coordination was analyzed. The dynamic mode for hybrid ve- hicle power systems and the control strategy were constructed by Matlab/Simulink. The input redun- dant control system with bumpless transfer control strategy was adopted to coordinate the torque of engine and motor. The bumpless transfer controller was built and the control parameters were matched. Simulation results show that the bumpless transfer control strategy can significantly reduce the vehicle mode switching process impact and improve the hybrid vehicle driving comfort.