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目前,汽车工业进入了一个高速发展的阶段,汽车从设计到上市,周期越来越短,而汽车的设计和研发是一项非常复杂且耗资巨大的工程,尤其是一些实车实验,不仅复杂而且带有一定危险性。为了方便汽车研发工作,缩短研发周期,运用xPC Target和veDYNA等软件开发工具,结合方向盘转角传感器、油门踏板传感器和制动踏板传感器等硬件工具,设计了一套汽车动力学硬件在环仿真系统。详细介绍了该系统的工作原理,以及各硬件模块和软件模块的结构和原理。最后,设计了一个汽车在半径为50米的圆形平坦路面上行驶的仿真实验,并对该H iL仿真系统的性能指标进行测试和分析。实验的结果表明,该仿真系统的精度和实时性非常好,完全能够满足一般汽车动力学仿真实验要求。
At present, the automobile industry has entered a phase of rapid development. The period from design to listing of vehicles has become shorter and shorter, and the design and development of automobiles is a very complicated and costly project. In particular, some real-vehicle experiments are not only complicated And with some danger. In order to facilitate the R & D work and shorten the R & D cycle, a set of hardware-in-the-loop simulation system of vehicle dynamics was designed by using hardware development tools such as xPC Target and veDYNA, and combined with hardware tools such as steering wheel angle sensor, accelerator pedal sensor and brake pedal sensor. Details the working principle of the system, as well as the structure and principle of each hardware module and software module. Finally, a simulation experiment is carried out to test the car running on a circular flat road with a radius of 50 meters. The performance of the H iL simulation system is tested and analyzed. Experimental results show that the accuracy and real-time of the simulation system is very good, fully able to meet the general automotive dynamics simulation requirements.