CAJ | 학술논문

无级变速器CVT消除了挡位概念，其速比在一定范围内连续可调。配备CVT的混合动力汽车能够实现动力源转矩和传动系统的优化匹配。针对此问题，提出了基于系统效率最优的CVT中度混合动力轿车动力源转矩优化分配方法。该方法综合考虑了各个关键部件的效率，以混合动力系统的总体效率为优化目标，以车速、车辆加速度、电池SOC为状态变量，优化分配了驱动工况下各动力源输出转矩，为整车能量管理策略的制定奠定了基础。
무급변속기CVT소제료당위개념，기속비재일정범위내련속가조。배비CVT적혼합동력기차능구실현동력원전구화전동계통적우화필배。침대차문제，제출료기우계통효솔최우적CVT중도혼합동력교차동력원전구우화분배방법。해방법종합고필료각개관건부건적효솔，이혼합동력계통적총체효솔위우화목표，이차속、차량가속도、전지SOC위상태변량，우화분배료구동공황하각동력원수출전구，위정차능량관리책략적제정전정료기출。
Hybrid electric vehicles with CVT （Continuously variable transmission） whose ratio can be changed continuously can optimize and match their power systems and transmission systems. According to this problem, a torque optimal distribution method for mild hybrid electric vehicles with CVT based on maximum system efficiency is proposed. This method considerate the efficiencies of key components and takes the maximum system efficiency as optimization objective while vehicle speed, acceleration and battery SOC as state variables. After getting the optimal output torque of motor and engine under different driving conditions, a foundation is laid for developing the energy management strategy for mild hybrid electric vehicles with CVT.