Study on driver model for hybrid truck based on driving simulator experimental results

In this paper, a proposed car-following driver model taking into account some features of both the compensatory and anticipatory model representing the human pedal operation has been verified by driving simulator experiments with several real drivers. The comparison between computer simulations performed by determined model parameters with the experimental results confirm the correctness of this mathematical driver model and identified model parameters. Then the driver model is joined to a hybrid vehicle dynamics model and the moderate car following maneuver simulations with various driver parameters are conducted to investigate influences of driver parameters on vehicle dynamics response and fuel economy. Finally, major driver parameters involved in the longitudinal control of drivers are clarified.     

分布式地铁列车驾驶仿真器的体系结构

从列车驾驶仿真器的体系结构出发,提出一种分布式列车驾驶仿真器的实现方案。该方案中,地铁列车驾驶仿真器由数据采集及输出、主控、ATC仿真、视景仿真、声音仿真、数字广播及通信仿真、运动平台控制等仿真子系统组成。子系统间采用IP组播的方式进行通信。方案支持基于DIS协议的仿真器间的通信,可实现多仿真器协同训练。为降低通信强度,提高仿真的实时性,采用一种DR算法。     

基于ARM单片机的汽车模拟驾驶器设计

在汽车驾驶模拟器中,传感控制系统的性能直接影响到整个汽车驾驶模拟系统的交互性和实时性,是衡量汽车驾驶模拟器实用性能的重要指标,而数据采集和处理系统又是整个传感控制系统的核心。文章介绍了汽车模拟驾驶系统的工作原理和单片机系统的设计思路。结果表明,由于单片机的数据采集系统成本相对较低,接口的可扩展性好,模拟量和开关量的预处理工作也可以由单片机来完成,因此系统完全可以满足汽车驾驶模拟器的交互性和实时性要求,在实际应用中取得了较好的效果。     

航海模拟器中船舶进港训练评估系统的研究

为了提高航海训练评估的效率,减少主观因素对评估结果的影响,实现自动评估成为当前热点。在调查大量的学员实际训练和考试评估数据基础上,利用概率论中的非参数假设检验方法,对学员的操纵误差予以分析,得到学员的误差分布函数,并结合教师在考试评估中评定成绩的概率,计算出评估的等级区间。最后利用加权平均法计算出学生的综合成绩,采用VC＋＋6．0实现的系统在航海模拟器上测试,得到了比较理想结果。     

一种雷达目标模拟器的DSP软件设计

为了配合某型C波段宽带雷达系统进行设备调试和功能检查,模拟器采用软硬件结合的方法。当雷达发射窄带信号时,目标回波通过对雷达发射信号进行延迟、频移等实现;当雷达发射宽带信号时,采用波形预先存储的方式进行回波的产生。模拟器通过操控计算机输入不同的雷达参数、目标特性数据,能模拟雷达所需的射频目标回波信号,以达到不同的测试要求,具有使用灵活、低成本、扩展性强的特点。     

Quest3D虚拟现实技术在轮机模拟器开发中的应用

介绍虚拟现实技术在轮机模拟器开发中的开发流程和总体设计思路,分析虚拟现实轮机模拟器操作系统开发中关键问题的解决方法,借助Quest3D软件实现该训练系统开发的技术路线。     

目标坡度计算及模拟雷达显示回波改进

为改善模拟雷达回波性能,提高模拟逼真度,论文论述了海区目标的坡度计算,目标坡度与雷达回波的关系,利用坡度改善模拟雷达回波性能的方法,并通过示例验证了方法的可行性.     

航海模拟器在海上搜救培训中的应用

海上搜救是一项需多单位协同配合的极其复杂的行动。作为专业的海上搜救单位和海上搜救的社会骨干力量,为了保证其人员应有的技术水平和熟练程度,需要经常地进行演习和培训;船长在考取适任证书以前也必须进行海上搜救的培训和评估。海上搜救实船演习、培训不仅组织困难,而且耗资巨大。本文通过多年成功的海上搜救培训经验,阐述了航海模拟器在海上搜救培训中应用的方式、方法,分析了其优缺点,并提出了相关建议。     

5446TEU电力系统建模仿真研究

以＂COSCO ROTTERDAM＂轮等5446TEU系列船型作为母型船,建立了物理—数学混合的电力仿真系统。应用计算机仿真技术模拟船舶电力系统的操作功能,并与虚拟配电盘相结合,实现了具有视景和人机自然交互界面的电力仿真系统,该仿真系统已在山东交通学院海运学院大型轮机模拟器上成功运行并取得了满意的效果。     

Vehicle sensor data-based analysis on the driving style differences between operating indoor simulator and on-road instrumented vehicle

Abstract

Indoor simulator and on-road instrumented vehicle are the most popular ways to analyze driving behaviors by using collected Vehicle Sensor Data (VSD). However, for a same driver, the driving performance could be different in the real world and in the simulated world. Even though many studies have been conducted to discover the differences of driving behaviors in these two circumstances, little research has focused on analyzing the differences in driving style, which can provide more integrated knowledge of a driver from the natural structure, stimulus–response mechanism, of driving behaviors. Therefore, in this paper, the driving styles in both the real world and the simulated world are extracted by implementing the nonnegative matrix factorization method on the collected VSD data. Through this analysis, the driving style differences can be quantitatively described and discussed in detail. It is found that the drivers tend to be more unstable and sometimes aggressive when driving the simulator and the deviation in the perception of temporal gap in two circumstances is also discovered. The research findings are particularly valuable to calibrate the driving simulator and construct more reliable driving behavior models.