CAJ | 학술논문

针对双轴并联式液压混合动力车辆（PHHV），以蓄能器荷电状态(SOC)和发动机瞬时燃油质量流量为输入量，发动机需求功率比例φ为输出量，以油耗最小为目标函数设计了模型预测控制器（MPC）进行PHHV的能量管理。基于MATLAB/Simulink平台搭建了包括需求功率计算、发动机、蓄能器和泵/马达等主要部件的PHHV车辆模型并进行MPC能量管理。研究结果表明，在美国道路城市循环工况（UDDS）下， MPC管理下的PHHV能充分发挥混合动力的特点，合理调节分配发动机和液压单元的需求功率，降低行驶过程的总油耗。mf g
침대쌍축병련식액압혼합동력차량（PHHV），이축능기하전상태(SOC)화발동궤순시연유질량류량위수입량，발동궤수구공솔비례φ위수출량，이유모최소위목표함수설계료모형예측공제기（MPC）진행PHHV적능량관리。기우MATLAB/Simulink평태탑건료포괄수구공솔계산、발동궤、축능기화빙/마체등주요부건적PHHV차량모형병진행MPC능량관리。연구결과표명，재미국도로성시순배공황（UDDS）하， MPC관리하적PHHV능충분발휘혼합동력적특점，합리조절분배발동궤화액압단원적수구공솔，강저행사과정적총유모。mf g
Based on the model predictive control (MPC) theory, design the MPC controller for biaxial parallel hydraulic hybrid vehicles (PHHV). Its inputs are the accumulator charge state SOC and instantaneous engine fuel mass flow rate g mf , output is the engine power demand proportionφ, the objective function is the minimum fuel consumption. Based on the MATLAB/Simulink platform, establish PHHV backward simulation model including calculation model of power demand, transmission model, engine model, accumulator and hydraulic pump/motor model etc. The simulation results show that: PHHV can fully exert the characteristics of the hybrid based on MPC, distribute the demand power of ICE and hydraulic unit, reduce total fuel consumption in the UDDS driving cycle process.