汽车技术
汽車技術
기차기술
AUTOMABILE TECHNOLOGY
2014年
12期
18-21,22
,共5页
冀树德%张兴刚%孙学东%闫瑞琦%高海涛
冀樹德%張興剛%孫學東%閆瑞琦%高海濤
기수덕%장흥강%손학동%염서기%고해도
柴油机%动态特性%道路载荷%相关系数法
柴油機%動態特性%道路載荷%相關繫數法
시유궤%동태특성%도로재하%상관계수법
Diesel engine%Dynamic performance%Road load%Correlation coefficient method
以某12缸柴油机装车后行驶的砂石路面为基础,针对不同驾驶员在车辆实际行驶中进行的7次加速过程,利用高速采集设备同步采集了柴油机输出端的转速和扭矩信号,并以动作响应快的转速信号为主要参数设计了典型的特征波形。利用相关系数法分析了7次加速信号及不同特征波形信号间的相关性,获得了砂石路行驶条件下柴油机动态特征信号。所提取的特征波形信号图形可表明,采用相关系数法分析典型动态特征信号是可行的。
以某12缸柴油機裝車後行駛的砂石路麵為基礎,針對不同駕駛員在車輛實際行駛中進行的7次加速過程,利用高速採集設備同步採集瞭柴油機輸齣耑的轉速和扭矩信號,併以動作響應快的轉速信號為主要參數設計瞭典型的特徵波形。利用相關繫數法分析瞭7次加速信號及不同特徵波形信號間的相關性,穫得瞭砂石路行駛條件下柴油機動態特徵信號。所提取的特徵波形信號圖形可錶明,採用相關繫數法分析典型動態特徵信號是可行的。
이모12항시유궤장차후행사적사석로면위기출,침대불동가사원재차량실제행사중진행적7차가속과정,이용고속채집설비동보채집료시유궤수출단적전속화뉴구신호,병이동작향응쾌적전속신호위주요삼수설계료전형적특정파형。이용상관계수법분석료7차가속신호급불동특정파형신호간적상관성,획득료사석로행사조건하시유궤동태특정신호。소제취적특정파형신호도형가표명,채용상관계수법분석전형동태특정신호시가행적。
For the regularly running sandstone road of vehicle powered vy a 12-cylinder diesel engine, and seven accelerations vy different drivers at actual driving, we collect the output speed and torque signals of diesel engine with the high-speed acquisition unit, and use the speed signal which has rapid response as main parameter to design the typical characteristic waveform. The correlation vetween acceleration signals and different characteristic wave signals is analyzed with the correlation coefficient method, and finally the dynamic characteristic signal in sandstone road driving is acquired. The extracted characteristic wave signal graph shows that the correlation coefficient method is feasivle to analyze the typical dynamic characteristic signal.