低速新能源电动轿车充电插座盖的研究与应用

文章主要介绍一种新的低速新能源电动轿车充电插座盖结构,摒弃现有充电插座盖的一些缺点打开时占用空间大,在停车狭窄的空间内无法打开;车辆在行驶过程中,因道路颠簸晃动而造成的充电盖间隙增大,密封性能差,雨水及其它液体容易进入充电插座,从而导致充电机损坏或出现漏电安全事故,通过本研究,在技术层面和部件结构上克服并解决了上述问题。     

西安地铁2号线信号系统投入CBTC运营的过程分析

西安地铁2号线信号系统采用完整的、基于无线通信技术的、移动闭塞制式的CBTC列车自动控制系统。结合西安地铁2号线具体情况,重点描述了CBTC系统运营过程中需要解决的灯泡线自动换端、筛选、精确停车等问题。     

沙漠公路后评价体系研究

文章通过对公路行车状况、道路线形、公路景观、驾驶特性及经济影响等方面的分析,构建了沙漠公路后评价体系,并结合塔里木沙漠公路进行了验证,为沙漠公路的后评价工作提供理论依据。     

快递运输车油耗研究与动力配置优化

以快递运输车为研究对象,针对用户使用情况进行了调研和实车道路采集,解析出快递运输车典型用户行驶循环工况。基于所提取的循环工况进行了综合油耗仿真分析,并进行了客户试验验证。结果表明,仿真计算油耗与客户实际使用油耗一致,得出适合快递运输车的最佳动力配置。     

Role of steering wheel feedback on driver performance: driving simulator and modeling analysis

When driving in curves, how do drivers use the force appearing on the steering wheel? As it carries information related to lateral acceleration, this force could be necessary for drivers to tune their internal model of vehicle dynamics; alternatively, being opposed to the drivers' efforts, it could just help them stabilize the steering wheel position. To assess these two hypotheses, we designed an experiment on a motion-based driving simulator. The steering characteristics of the vehicle were modified in the course of driving, unknown to drivers. Results obtained with standard drivers showed a surprisingly wide range of adaptation, except for exaggerated modifications of the steering force feedback. A two-level driver model, combining a preview of vehicle dynamics and a neuromuscular steering control, reproduces these experimental results qualitatively and indicates that adaptation occurs at the haptic level rather than in the internal model of vehicle dynamics. This effect is related to other theories on the manual control of dynamics systems, wherein force feedback characteristics are abstracted at the position control level. This research also illustrates the use of driving simulation for the study of driver behavior and future intelligent steering assistance systems.     

Comparing the self-assessed and examiner-assessed driving skills of Japanese driving school students

Previous research about subjective driving skills has revealed that drivers, especially younger males, tend to rate their driving skills more highly than those of the average driver. This study examines the accuracy of Japanese novice drivers' self-evaluation of their driving skills by comparing their self-assessments with assessments made by a driving examiner. We also examined the effects of gender and age on the accuracy of driver self-evaluation of their skills.     

车辆AMT中道路条件及驾驶意图的模糊识别

本文论述了车辆AMT中道路条件及驾驶意图模糊识别的必要性，提出了道路条件及驾驶意图的模糊识别方法，最后给出了在AMT挡位决策中的应用实例。     

六自由度汽车运动模拟器机构的位置姿态误差分析

六自由度汽车运动模拟器是可进行汽车驾驶逼真模拟的训练和研究用设备。本文利用微分平移和微分放置变换方法，通过误差传递矩阵的求解来探讨模拟器运动台主要误差源与运动台位置姿态误差之间的关系，建立了六自由度模拟器运动台的位置姿态误差模型。     

中国典型城市车辆行驶状况的测试统计

介绍了在北京市（大型），长春市（中型）和四平市（小型）三个具有典型特征的代表城市所做的车辆行驶状况的试验及交通状况的调查结果，通过对行驶速度，油耗，档位和加速度等参数的测量与统计，对我国城市车辆行驶状况了最新了解。     

胎面单元对轮胎薄膜湿牵引性能的影响

在潮湿的天气或雨后，轮胎胎面或路面上存在一层很薄的水膜，该水膜使车辆行驶的牵引力降低。建立了轮胎胎面单元挤压膜问题的数学模型，并进行了数值求解，分析了胎面单元的几何参数，液膜厚度和柔性对轮胎薄膜湿牵引性能的影响，为轮胎胎面花纹的合理设计提供了理论依据。