The driver model should imitate the behavior of a real driver as well as possible . for this purpose , the staring behavior was defined by taking into account the coalesce process about the drive side and take - off side of the friction clutch , the driving behavior was defined by taking into account the change of acceleration pedal position , arrester pedal position and clutch pedal position in the shifting process 定义车辆起动特性时考虑了起步阶段离合器主从动部分的接合过程,定义行驶特性时考虑了行驶阶段加速踏板和制动踏板的开度变化以及换档过程中离合器踏板和加速踏板的开度变化情况,真实地描述了一个驾驶员的特性,使得模拟结果更接近于实际。
2 . parameters which are sensitive to engine speed and load are selected according to static state calculation results , then making a map in which the parameters change with engine speed and load . adding a vehicle part to simulate external load to engine , adding control part to simulate driver action such as gear number change , acceleration pedal and clutch position , so we can update the static state simulation model to a transient one 首先应用热力学仿真软件gt - power建立发动机的稳态模拟计算模型,通过发动机稳态试验测量的数据对模型校准,进而建立发动机瞬变模拟计算模型,将模型与整车模型联合,计算发动机在整车瞬变加速状态下各种参数的变化情况,结合整车试验测量数据,对影响整车加速性的关键参数加以分析,同时校正整车模型,最终通过模型对改进方案进行预测,找出最佳的整车加速性解决方案,并进行试验验证。