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报告分类:外文技术报告 检索词:汽车

  • 241.用于输送低温液体罐车的超韧钢的评价和应用

    [汽车制造业] [2014-03-21]

    The goal of the proposed project is to further develop and market advanced 70-ksi-yield strength super-tough steel (designated as NUCu60ST in the text) for use in tank cars transporting cryogenic liquids.
    关键词:汽车;油罐车;危险品运输;超韧钢
  • 242.为提高路边停车安全性的警车车灯、反光标识及油漆处理性能分析

    [汽车制造业] [2014-03-21]

    The project is designed to modify an existing sensor-based traffic monitoring system so that it serves as a test bed to evaluate the retro-reflector, lighting, and paint treatments of an emergency vehicle to determine whether particular combinations produce improved 'move over' behavior of oncoming traffic.
    关键词:汽车;逆反射;水基涂料;反射率;交通事故;回归分析;
  • 243.专用汽车发电机系统的功率匹配研究

    [汽车制造业] [2014-03-20]

    Aimed at the problem of power supply protection on vehicles as the special project platform,making use of the surplus reserve power of vehicles and installing moving shaft generator system is introduced.Dynamics model of vehicle with shaft generator system is established,the impact of shaft generator system to the vehicle is analyzed,and compared with the dynamics of prototype vehicle,the dynamics matching method of vehicle with moving shaft generator system is obtained.
    关键词:汽车;轴带发电机系统;备用电源;动力因素
  • 244.基于卡尔曼滤波算法的目标车辆运动状态雷达估计方法

    [汽车制造业] [2014-03-20]

    In this paper,based on Kalman filtering algorithm,a method of target vehicle motion state radar estimation with radar(or lidar) is presented.The state equations is established based on rigid plane dynamics theory,and then with a Kalman filter to do radar data processing,the position,velocity and acceleration of the target vehicle can be estimated at the same time,so that to cover the shortage that acceleration information can not be gained with radar system.Through simulation and field tests it is verified that the detection accuracy of position and velocity of target vehicle is increasing,and the acceleration of target vehicle can be estimated effectively and accurately.
    关键词:汽车;雷达;卡尔曼过滤;加速度估计;智能汽车
  • 245.混合动力电动汽车功率分流模式分析

    [汽车制造业] [2014-03-20]

    EVT transmission in Planetary Gear Hybrid Electric Vehicles makes it available that the engine works on the optimal curves; yet because of the speed limitation of motor MG1,the maximum output power of the engine is a function of vehicle speed.The maximum traction and regenerative braking power is also a function of vehicle speed.Based on this,the vehicle drive modes consist of EV mode,economy mode and power mode,and braking modes include the regenerative braking mode and electromechanical braking mode.
    关键词:汽车;电子式电压互感器;单株;驱动模式;制动模式
  • 246.汽车氧传感器的新型电解质制备与离子导电机制

    [汽车制造业] [2014-03-20]

    The ionic conductive behavior of the electrolyte was analyzed on the basis of electrochemical impedance spectroscopy (EIS) test,and the interaction of working temperature,defect microstructure and ionic conductivity was investigated.Accordingly,the SDC displayed an ionic conductivity of 0.029 S cm-1 at 750 ℃.It was suggested that the nano-crystalline could shorten the transfer distance of the charge carriers.Furthermore,the structural change of the polycrystal boundaries with the temperature was a key factor which promoted the oxygen ionic conductivity.
    关键词:汽车;氧传感器;离子导电;电化学阻抗谱;钐掺杂氧化铈;
  • 247.蓄电池在线维护设备设计

    [汽车制造业,电气机械和器材制造业] [2014-03-20]

    In this paper,the sulfation failure mechanism on negative plates of lead-acid batteries and the pulse-repairing technology are analyzed,and an online automatic maintenance device based-on the Boost converter is designed.The test results show that by adjusting the hardware devices and programs the frequency and amplitude of charge-and-discharge pulses can be changed.And when the battery voltage is too low the device can generate sound and light alarm.The device meets the design requirements.
    关键词:汽车;铅酸电池;蓄电池;电池维护
  • 248.利用甲烷生产微波氢实验研究

    [汽车制造业] [2014-03-20]

    The results of this testing program have been very promising, demonstrating the ability to achieve higher methane conversion than onventional methane steam reforming processes. In addition to the higher conversion efficiencies, the microwave reactor system used for the process is more easily scaled to lower gas production volumes than conventional reforming technologies. This makes the technology well suited to generate hydrogen from natural gas for hydrogen fuel cells in the 1 to 20-kW range.
    关键词:汽车;氢;甲烷;汽车尾气;碳氢化合物;微波
  • 249.汽车铝合金车身面板的反弹补偿研究

    [汽车制造业] [2014-03-20]

    We put forward a new springback compensation method based on displacement compensation principle and the principle of curved surface fairing design methods.Though full cycle simulation and calculate springback value for each working procedure,then generate the springback compensation surface.The method's practical application effect is good.
    关键词:汽车;金属板材成型;反弹补偿;铝合金;车身面板
  • 250.自动控制汽车制动淋水降温系统研究

    [汽车制造业] [2014-03-20]

    With the analysis of vehicle braking drum overheated which has caused brake invalid,this paper put forward a kind of research way to improve the problem of braking drum overheated.Through auto-control it spurts water to lower the temperature to the overheated hub to solve the problem of brake invalid which is caused by braking hub overheated,improve the constancy of braking efficiency,guarantee the security of vehicle drive.
    关键词:汽车;鼓式制动器;制动效率;淋水降温;自动控制
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