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52251.电动汽车无刷直流电机的仿真研究
[汽车制造业] [2014-03-21]
Aiming at working out how to apply the brushless DC motor to the electric car,a control systemwas designed after a series of related researches.With the basic principles and methods of operating the brushless DC motor being studied,the sirmlation model of controlling the brushless DC rrotor was designed by MATLAB software,and the related parameters were analyzed and studied.The results showed that the brushless DC motor had good controllability,which made it suitable for the application to the electric car.
关键词：汽车；电动汽车；无刷直流电机；控制
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52252.燃油喷油泵柱塞弹簧的模糊多目标优化设计
[汽车制造业] [2014-03-21]
Fuzzy theory and multi-objective optimization technology were applied to design fuel injector pump plunger spring based on consideration on its force condition.The mathematical model for the multi-objective optimization design was built under the objective of the maximal fatigue safety coefficient,the minimal weight and height,with the design variable of wire diameter d,mean diameter D and working circle n.Then,the fuzzy solution of multi-objective optimization were use to solve the model.
关键词：汽车；燃油喷射泵；柱塞弹簧；多目标最优化；优化设计
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52253.新兴产业周刊——2014年第7期
[专用设备制造业,医药制造业,水利、环境和公共设施管理业,信息传输、软件和信息技术服务业,汽车制造业,通用设备制造业,综合] [2014-03-21]
本刊以七大战略性新兴产业——节能环保、新一代信息技术、生物、高端装备制造、新能源、新材料、新能源汽车为研究重点，关注国家高层和各部委的动态，剖析国家和地方的新兴产业政策。本刊设有政策导读、领导讲话、七大战略性新兴产业本周国内外行业动态和重点企业新闻、投资专题四大板块，能够实时监测新兴产业和重点企业动态，把握新兴产业发展方向，研究发展重点，寻求发展机遇。
关键词：节能环保；新一代信息技术；生物；高端装备制造；新能源；新材料；新能源汽车
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52254.项目总结报告：汽车废热回收热电技术的发展（2005.5.23——2011.10.31）
[汽车制造业] [2014-03-21]
We conducted a vehicle analysis to assess the feasibility of thermoelectric technology for waste heat recovery and conversion to useful electrical power and found that eliminating the 500 W of electrical power generated by the alternator corresponded to about a 7increase in fuel economy (FE) for a small car and about 6for a full size truck.We obtained critical vehicle level information for these driving cycles that enabled a highlevel design and performance analysis of radiator and exhaust gas thermoelectric subsystems for several potential vehicle platforms, and we identified the location and geometric envelopes of the radiator and exhaust gas thermoelectric subsystems.
关键词：汽车；热电转换；废热回收；尾气；燃料经济
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52255.基于ANSYS的汽车后视镜振动模态分析和结构优化设计
[汽车制造业] [2014-03-21]
In this paper,we use the finite element software ANSYS to simulate the vibration frequency and vibration modals of the car rear-view mirror under the condition of excitation sources.Based on this and the strength analysis results of the rear-view mirror,we make a optimal design of the rear-view mirror structure.We get five-order vibration modals in working condition and analysis the size of displacement and deformation,and dynamic characteristics.The results show that because of the low modal frequency,the car rear-view mirror is easily inspired by the engine,powertrain system and road to vibrate.
关键词：汽车；后视镜；振动模态；优化设计；ANSYS
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52256.谁最可能购买PHEV：详细的市场细分分析
[汽车制造业] [2014-03-21]
The ORNL MA3T model developed for the U.S. Department of Energy is described and used to project PHEV purchase probabilities by different consumers.It is observed that consumers who have home charging, drive more frequently and live in urban area are more likely to buy a PHEV. Early adopters are projected to be more likely PHEV buyers in the early market, but the PHEV purchase probability by the late majority consumer can increase over time when PHEV gradually becomes a familiar product.
关键词：汽车；混合动力电动汽车；燃料电池；市场分析；PHEV
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52257.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；
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52258.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；
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52259.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
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52260.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
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