摘要
发动机负荷特性实验数据是计算汽车负荷特性的重要参数。利用负荷特性实验数据,建立了等参变换插值法的数学模型,得到了汽车在任意工况下的负荷特性(包括负荷燃油特性和负荷排放特性);利用发动机在怠速工况时单位时间内的燃油消耗率数据,通过外插法得到了发动机在怠速和输出扭矩为0时单位时间内的燃油消耗率;通过实例验证了计算模型推导和建立的有效性。
The experimental data of engine load characteristics were important parameters for motor load characteristics. By u- sing the experimental data of load characteristics, the mathematical modal of isoperimetric transformation interpolation meth- od was established, and the vehicle load characteristics in the arbitrarily condition were calculated （ including the fuel prop- erties and emission characteristics of the load）. Using the fuel consumption rate of the engine in the unit time in the idling condition, the values of fuel consumption rate in the idling condition and in the condition that the output torque was zero were obtained by extrapolation method. The validity of the calculation model＇ s deduce and establishment was verified by the case study.
出处
《重庆交通大学学报（自然科学版）》
CAS
北大核心
2014年第2期138-141,共4页
Journal of Chongqing Jiaotong University(Natural Science)
关键词
车辆工程
负荷特性
外插法
等参变换插值法
vehicle engineering
load characteristic
extrapolation method
isopararnetric transformation interpolation method
