CAJ | 학술논문

基于车辆在起伏路面和砂石路面行驶运行，采用高速采集设备采集了发动机输出端的转速和扭矩值，构成了不同路面的道路载荷数据，利用经典的数学分析方法-雨流计数法进行了转速和扭矩分布特性的研究。结果表明：相比于驾驶习惯，路面特征对发动机运行工况的影响更大；不同路面行驶条件，发动机主要的工作转速范围不同；起伏路行驶条件下，存在很大比例的负扭矩运行工况；实际使用过程的发动机运行工况低于设计外特性和考核工况，不适于用于稳态的耐久试验方法研究。
기우차량재기복로면화사석로면행사운행，채용고속채집설비채집료발동궤수출단적전속화뉴구치，구성료불동로면적도로재하수거，이용경전적수학분석방법-우류계수법진행료전속화뉴구분포특성적연구。결과표명：상비우가사습관，로면특정대발동궤운행공황적영향경대；불동로면행사조건，발동궤주요적공작전속범위불동；기복로행사조건하，존재흔대비례적부뉴구운행공황；실제사용과정적발동궤운행공황저우설계외특성화고핵공황，불괄우용우은태적내구시험방법연구。
Based on the running conditions of vehicles on the undulating and sandstone road, the output speed and torque of engines was recorded with the high-speed data acquisition equipment, which formed the road load data of different roads. The distribution characteristics of speed and torque were researched with the typical mathematical method, which called the rain flow counting method. The results show that, compared with the driving habits, the influence of road characteristics on engine operating conditions is larger. Accord-ing to the conditions of different road, the main range of operating speed is different. On the undulating road, the engine runs in most time with the negative torque. During the actual application, almost all the operating conditions are lower than the designed full load conditions and durability test conditions, and so it is not ap-propriate to research the steady durability test method with the measured road load data.