CAJ | 학술논문

针对CVT式新型耦合系统混合动力汽车在模式切换过程中出现动力源输出扭矩波动过大的问题进行模式分析。划分工作模式区域，确定模式切换条件及相应动力源的目标扭矩。研究发动机和电机目标扭矩动力协调控制算法，制定模式切换过程中CVT速比控制策略。用Simulink搭建仿真模型进行仿真分析，并采用台架试验进行验证。结果表明，采用该扭矩协调控制策略能有效降低模式切换过程中的扭矩波动，提高了模式切换的品质。
침대CVT식신형우합계통혼합동력기차재모식절환과정중출현동력원수출뉴구파동과대적문제진행모식분석。화분공작모식구역，학정모식절환조건급상응동력원적목표뉴구。연구발동궤화전궤목표뉴구동력협조공제산법，제정모식절환과정중CVT속비공제책략。용Simulink탑건방진모형진행방진분석，병채용태가시험진행험증。결과표명，채용해뉴구협조공제책략능유효강저모식절환과정중적뉴구파동，제고료모식절환적품질。
To troubleshoot the oversized output torque ripple of power source during mode switching of CVT hybrid vehicle with new type coupling system, we make mode analysis by dividing operating mode area and define mode switching conditions and target torque of corresponding power source. By studying power coordinated control algorithm of engine and motor target torque, we develop CVT speed ratio control strategy during mode switching. We use Simulink to establish simulation model for analysis and verify with bench test. The results show that this coordinated torque control strategy can effectively reduce torque ripple during mode switching, and improve mode switching quality.