在汽车驾驶模拟器的开发中,与视景系统相匹配的正确、合理的汽车动力学模型的建立,以及在此基础上进行的汽车运动分析,是整个系统开发的关键,直接影响到系统的沉浸感、交互性和实时性。根据汽车理论知识分析汽车运动过程中的受力状态,找出影响汽车运动的主要因素,提出了一个合理的动力学模型。同时,对汽车运动的分析方法作了一些改进,在系统开发中采用了改进的欧拉方法,取得了较好的仿真效果。
In the developing process of a visual driving simulation system, it's vital to found a rational dynamics model suitable for the system and analyze the automobile motion based on it, which directly affects the main performance parameters of system such as immersion, interaction and real time. This paper analyzes the state of automobiles in the motion process according to the automobile theory and with the main factors related with the motion it puts forward a reasonable dynamics model. Meanwhile, some improvements on the analysis method for the automobile motion are made. In the system development, improved Euler's Method is adopted and effective simulation results are obtained.