The mode transition process (MTP) from electric mode to hybrid electric mode (EM-to-HM) will cause the deterioration in occupant comfort of PHEV, to tickle this issue, a torsional oscillation-considered mode transition coordinated control strategy and a novel general evaluation index for MTP are developed in this research, the quality of mode transition and transient torsional oscillation of gears (TTOGs) during MTP are taken into consideration comprehensively. An action dependent heuristic dynamic programming algorithm which takes the vehicle jerk, friction loss and TTOGs as evaluation index is used to optimize the pressure curve of clutch oil and the compensation torque of motor in the entire EM-to-HM process. Finally, the simulation results and hardware-in-the-loop tests show that vehicle jerk and TTOGs are suppressed, and the driving comfort can be improved accordingly.

从电动模式到混合电动模式 (EM-to-HM) 的模式转换过程 (MTP) 将导致 PHEV 乘员舒适度的恶化，为了解决这个问题，一种考虑扭转振荡的模式转换协调控制策略和一种新颖的通用本研究制定了MTP的评价指标，综合考虑了MTP过程中的模式转换质量和齿轮瞬态扭转振荡（TTOGs）。采用基于动作的启发式动态规划算法，以车辆抖动、摩擦损失和TTOGs为评价指标，对整个EM-to-HM过程中离合器油压曲线和电机补偿转矩进行优化。最后，仿真结果和硬件在环测试表明，车辆抖动和 TTOG 得到抑制，