对抗灾救灾非战争军事行动 车辆运输保障的三点思考

2008年年初,我国南方部分地区发生了历史罕见的雨雪冰冻灾害;5月12日,四川汶川又发生了里氏8级强烈地震。这些自然灾害涉及范围广,破坏强度大。对人民群众的生命和财产造成了巨大损害。灾情发生后,全军坚持把抗灾救灾作为首要的政治任务来完成,最大限度地保护了人民的生命与财产安全。在抗灾救灾过程中,军队车辆运输保障工作指挥顺畅、组织得当,     

做好非战争军事行动车辆运输保障过程中政治工作的对策及建议

创新教育工作方法，保证教育有序开展。教育引导执行非战争军事行动车辆运输保障任务的运勤官兵充分认清执行非战争军事行动的重大政治意义，牢固树立维护国家利益、挽救人民生命财产的政治责任感，确保始终做到政治合格、立场坚定、思想过硬，就必须创新政治教育的工作方法。一是要大力倡导随机灵活、见缝插针的教育方式。针对运输部队点多、线长的特点，要灵活使用收听广播、流动宣传、典型激励等方式，充分利用途中检查、停车休整、开饭集合等时机进行教育引导，不断积累教育效果。     

网络建设铺就专用车售后服务品质

据了解,我国大部分专用车生产企业采取厂家对用户的直接售后服务模式,这种服务模式存在着成本较高、效率较低等缺陷。不过,部分专用车生产企业已经意识到这一问题并正在加强自己的售后服务网络建设,利用与服务站合作、自建服务站以及与主机厂合作等多种方式完善自己的售后服务体系,并且已取得初步成效这意味着我国的专用车售后服务体系正逐渐向规范化、网络化方向发展。     

智能车辆定位导航系统中数据实时采集的实现方法

介绍了一种智能车辆定位导航系统(IVLNS)软件的总体设计和数据处理体系中高速串口数据实时采集的解决方案。     

OD矩阵估计中的AVI设施布局优化

根据传统定点检测器和车辆自动识别(AVI)检测器检测的交通参数,分析了面向OD矩阵估计的AVI设施布局与传统定点检测器布局在数据源、问题描述、优化模型和精度评价方面的差别。提出了在已有定点检测设施基础上的AVI设施布局优化的车辆覆盖最大原则,构筑了AVI设施布局优化模型,并设计了相应的启发式求解算法,该模型能在保证OD矩阵估计精度的同时最大化AVI检测效益。然后以VISSIM微观仿真模型为基础建立了AVI布局优化仿真评价系统,可对不同AVI布局方案的有效性进行软件在环的验证和优化。最后,以上海陆家嘴区域交通网络为例,进行了AVI设施布局仿真试验,检测器覆盖率从5%~50%的敏感性分析表明,覆盖率为20%时,系统的综合投入产出效益最佳。     

城市快速路AVI检测设施布局仿真优化

针对城市快速路车辆自动识别（AVI）系统行程时间检测与动态OD矩阵获取的双重目标,在检测器数量及检测精度有限的条件下,提出了城市快速路AVI检测设施布局优化模型与提高OD估计精度的车辆转向率法;应用Visual Basic编程语言通过Vissim组件对象模型接口建立了基于微观仿真的城市快速路AVI检测设施布局仿真优化平台,可对AVI检测设施布局优化模型进行＂软件在环＂的仿真评价,进而得出优化的布局方案。以上海市南北高架快速路AVI设施布局为例验证了AVI设施布局仿真优化的科学性,在90%检测精度条件下得到OD矩阵范数平均相对误差NMRE〈25%,需要检测器布设断面密度达到85%,并总结了城市快速路AVI设施布局的3条主要原则。     

通用某新能源车型总线数据获取策略研究

随着车联网以及智能驾驶概念的提出及实施,车辆的总线数据安全变得越来越重要,因此通用汽车广泛采用设置车辆网关模块以及防火墙用以隔绝汽车内部总线数据与外界的直接联系以保证车辆安全性,但是在车辆的开发测试阶段,无法直接获取总线数据对问题的分析与解决造成了很大障碍;本文基于通用某新能源车型在开发测试阶段总线数据获取困难的问题,对各种获取总线数据的方法进行了分析与比较,提出了使用跳线人造工程接口的方法获取车辆的总线数据。     

电涡流缓速器在客车营运中的应用

简要介绍电涡流缓速器的组成结构和工作原理;详细介绍其在客车上的使用效果;表明电涡流缓速器具有使车辆利用率高、故障小、保修成本低、节能降耗、平稳舒适、安全性较高的良好效果。     

Application of Aerodynamic Actuators to Improve Vehicle Handling

This exploratory study considers applications of active aerodynamic devices for suppressing parasitic motion and for improving the response of vehicles to steering, within the scope of the linear dynamic behaviour. A three DOF linear model is chosen to describe the side slip, yaw and roll motion of a baseline front-wheel steered vehicle. The improvements in performance of the base-line vehicle that are achievable by the application of direct yaw and roll moments are determined when either an open loop control pre-filter or a state feedback control law based on LQR design is applied. Unlike the former control, the state feedback control is unable to make the body side-slip angle vanish. The feedback control performance of each of the two moment actuators has been examined separately and then jointly. The advantages of combining the open loop and feedback dual actuator configurations are demonstrated using the two-degree of freedom control scheme. It is found that the scheme yields a spectacular performance but demands unreasonably large moments from the actuators in the context of available aerodynamic forces. On the other hand, the demand on direct yaw and roll moment of actuators is modest when the actuators are controlled using the LQR feedback only and if the control design is used to track a desired yaw rate trajectory and simultaneously to reduce the parasitic rolling motion. Significant improvements in handling and dynamic stability of a base-line vehicle can be achieved by aerodynamically generated direct yaw and roll actuator moments provided the target control performance is reasonable. The configurations of aerodynamic actuators considered are feasible for improving vehicle handling in cornering on motorways but more work remains to be done to explore alternative aerodynamic configurations that give rise to less side effects and higher lift coefficients.     

Application of Aerodynamic Actuators to Improve Vehicle Handling

This exploratory study considers applications of active aerodynamic devices for suppressing parasitic motion and for improving the response of vehicles to steering, within the scope of the linear dynamic behaviour. A three DOF linear model is chosen to describe the side slip, yaw and roll motion of a baseline front-wheel steered vehicle. The improvements in performance of the base-line vehicle that are achievable by the application of direct yaw and roll moments are determined when either an open loop control pre-filter or a state feedback control law based on LQR design is applied. Unlike the former control, the state feedback control is unable to make the body side-slip angle vanish. The feedback control performance of each of the two moment actuators has been examined separately and then jointly. The advantages of combining the open loop and feedback dual actuator configurations are demonstrated using the two-degree of freedom control scheme. It is found that the scheme yields a spectacular performance but demands unreasonably large moments from the actuators in the context of available aerodynamic forces. On the other hand, the demand on direct yaw and roll moment of actuators is modest when the actuators are controlled using the LQR feedback only and if the control design is used to track a desired yaw rate trajectory and simultaneously to reduce the parasitic rolling motion. Significant improvements in handling and dynamic stability of a base-line vehicle can be achieved by aerodynamically generated direct yaw and roll actuator moments provided the target control performance is reasonable. The configurations of aerodynamic actuators considered are feasible for improving vehicle handling in cornering on motorways but more work remains to be done to explore alternative aerodynamic configurations that give rise to less side effects and higher lift coefficients.     

多类型传感器实时交通数据采集和车型自动分类系统设计

针对公路交通数据实时采集中的技术同题，提出了用多类型传感器检测交通参数和进行复杂车型分类的方法。叙述了一个实用的软件系统设计．探讨了多传感器检测数据的关联与融合、检测数据的归一化处理，实现了交通数据高精度测量和车型的精确分类。     

爱威机电携手成都客车改善客车安全通道

6月5日成都公交车内的一场火灾造成了多少家庭的悲剧，同时也引起了众多有识之士的关注。 爱威机电（南京）有限公司的总经理童海波和成都客车公司少帅王林都是美国的海归。一把火让他们共同聚焦到公交车的安全通道上。他们回忆起美国公交车的安全通道：正常通行一般采用内摆门；特殊情况有安全窗及安全锤；紧急情况有逃生窗等各种设施。