CAJ | 학술논문

为避免回流式无级变速器在无级与回流工况转换过程中动力中断,以减小对整车冲击度的影响,提出了回流式无级变速器动力连续转换的控制策略。针对转换过程中变速器效率和金属带功率流方向变化对输出转矩的影响,建立了转换过程中离合器接合、分离的动力学模型,确定了离合器扭矩变化率的限定范围。利用MATLAB/Simulink仿真平台,对回流-无级和无级-回流转换过程进行了仿真研究,结果表明：采用回流式无级变速器动力连续转换的控制策略,冲击度控制在5m/s^3以内。
위피면회류식무급변속기재무급여회류공황전환과정중동력중단,이감소대정차충격도적영향,제출료회류식무급변속기동력련속전환적공제책략。침대전환과정중변속기효솔화금속대공솔류방향변화대수출전구적영향,건립료전환과정중리합기접합、분리적동역학모형,학정료리합기뉴구변화솔적한정범위。이용MATLAB/Simulink방진평태,대회류-무급화무급-회류전환과정진행료방진연구,결과표명：채용회류식무급변속기동력련속전환적공제책략,충격도공제재5m/s^3이내。
In order to avoid power loss of continuously variable transmission system with reflux power and reduce vehicle jerk,a continuous power shift control strategy of continuously variable transmission system with reflux power was put forward.Aimed at shifting process,transmission efficiency and the opposite direction of continuously variable unit had impact on transmission output torque,a dynamics model of clutch engagement and disengagement course was established, and the range of clutch torque change ratio was calculated. Taking MATLAB/Simulink as the platform,simulation study of shifting process was carried out, the results indicate that jerk is less than 5m/s^3 by adopting continuous power shift control strategy of continuously variable transmission system with reflux power.