某VAN客车空调各出风口出风量分析及优化

以某VAN客车顶置空调风道实体模型为分析对象,模拟了空调风道内部气流分布,分析了空调风道各出风口的风量分配。通过对客调出风口结构的优化,使空调风道各出风口的体积流量趋于均匀,各出风口体积流量标准差、空调风道压力损失有所降低,各项指标得到明显改善,优化效果显著。     

辊压成型设备在客车蒙皮制造中的应用

介绍几种不同结构的辊压成型设备及其在客车蒙皮制造中的应用，以满足客车不同部位蒙皮成型的要求。     

客车底盘纵梁数控冲孔生产线

简要介绍客车底盘纵梁数控冲孔生产线的发展历史与现状；着重介绍SPU12—32-4型汽车U型纵梁三面数控冲孔生产线和SPTB120—10型纵梁数控平板冲孔生产线的特点。     

CAN总线在ATP车载系统中的应用

本文介绍了CAN总线在ATP车载系统中的应用,在系统的仿真和调试过程中,事实证明,本系统采用的CAN通信网络实时性强,可靠性高,满足了系统对于通信网络的要求。     

客车悬架吊杆衬套失效的原因分析及改进

针对某客车悬架吊杆衬套批量失效的问题进行分析,结合衬套样品的耐水解、硬度和微观形貌测试结果,提出改进方案,问题得到解决。     

A technical note on evaluating the effectiveness of bus rapid transit with transit signal priority

Transit Signal Priority (TSP) and Bus Rapid Transit (BRT) are innovative Intelligent Transportation System (ITS) tools that can reduce travel times for buses. Combining TSP and BRT can significantly improve bus travel, but can negatively impact network traffic operations. Although TSP has been implemented worldwide, few previous studies holistically examined the effects of using various conditional and unconditional TSP strategies with or without a BRT system. This research simulates multiple TSP and BRT combination scenarios to understand their impact on traffic operations, including crossing street traffic. A test bed along International Drive (I-Drive) in Orlando, Florida, was chosen as the simulation area. Field data collected for this test bed, which included traffic volumes, bus travel times, and traffic signal control data, were used to develop, calibrate, and validate the simulation model. Results showed that BRT with Conditional TSP 3 minutes behind significantly improved travel times, average speed, and average total delay per vehicle for the main through movements compared with no BRT or TSP, with only minor effects on crossing street delays. BRT with Unconditional TSP resulted in significant crossing street delays, especially at major intersections with high traffic demand, indicating that this scenario is impractical for implementation. The simulation suggests that BRT and TSP will be most effective when used in areas where crossing street volumes are low. However, it is unknown how these ITS tools affect pedestrian traffic. Using optimization methods can determine the best strategy to balance transit and pedestrian traffic.     

列车通信网结构及其协议的研究

介绍了列车通信网的主要功能和特点。在此基础上，对列车通信网规范进行了研究，将几种通用局域见及流行的现场总线的特点进行了对比，提出目前我国列车通信网可采用的体系结构和网络协议。     

一种基于CAN总线技术的远程数据采集系统

在海洋环境中，可能需要对多种物理参数进行采集与传输。在分析比较多种远程数据传输方式的基础上，提出一种基于CAN总线技术的远程数据采集系统的硬件和软件设计方案。使用该系统对水下物理场进行了数据采集实验，结果表明该系统通信速率高、传输距离远、可靠性好且性价比高。     

几种典型数字随动控制器特点分析

介绍了以PC机为核心的控制器、具有独立运动控制功能的随动控制器、网络化的嵌入式控制器等3种典型形式数字随动系统控制器，它们所实现的功能相近，但控制模式、结构形式差异很大，本文对这3种常用随动控制器构成系统时的软硬件形式、特点进行了分析。     

力集中式200km/h电动车组的微机控制系统

介绍了动力集中式２００ ｋｍ ／ｈ 电动车组微机控制系统、列车总线及控制、诊断功能，重点介绍电动车组微机系统的新功能和新特点。