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51341.汽车竞争情报-第552期
[汽车制造业] [2015-06-16]
报告从宏观政策环境、地方政策动态、竞争对手情报、产品与技术创新等几个方面进行了分析及评论。
关键词：宏观政策环境；地方政策动态；竞争对手情报；产品与技术创新
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51342.全球汽车汽油直喷系统市场报告（2015-2019年）
[仪器仪表制造业,专用设备制造业,汽车制造业] [2015-06-15]
GDI systems, also known as fuel stratified injection systems, atomize fuel and spray fuel vapors into the combustion chamber. The main components of an automotive GDI system are the fuel pump, fuel injectors, fuel pressure regulators, and sensors. GDI systems are fuel-efficient, offer highperformance output, and emit low levels of pollutants compared to carburetor engines.
关键词：GDI系统；燃料分层；喷射系统；雾化燃油和喷射燃料；蒸气；燃烧室
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51343.全球高阻隔袋市场报告（2015-2019年）
[化学原料和化学制品制造业,汽车制造业,橡胶和塑料制品业] [2015-06-14]
High-barrier pouches are made of high-performance films and barrier resins, and have unique features such as high or low heat conductivity, resistance to external or internal conditions, special surface properties, high purity, and mechanical properties. High-performance films are thin films made from polymers such as polypropylene, polyamide, polyethylene, polyvinyl chloride, polycarbonate, ethylene vinyl alcohol, and polyester. High-barrier pouches ensure the safety of their contents and are primarily used for non-retort food products.
关键词：高阻隔小袋；高性能膜；阻隔树脂；导热性；高纯度；机械性能
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51344.全球汽车市场冷却液报告（2015-2019年）
[化学原料和化学制品制造业,汽车制造业] [2015-06-13]
An engine coolant is a heat transfer liquid used to remove the surplus heat from an ICE. It also helps in providing protection against corrosion and preventing freezing during winters. In terms of products, coolant is classified into three categories: ethylene glycol-based, propylene glycolbased, and glycerin/glycerol-based coolants. Ethylene glycol-based coolants are extensively used in the global automotive industry. Since they are toxic, automotive manufacturers are shifting to coolants made of propylene glycol. Owing to advances in technology and to meet automobile manufacturers’ need for coolants with longer lifespans, manufacturers are developing coolants with longer replacement cycles. The rising demand for automobiles (passenger cars and commercial vehicles, especially LCVs) in emerging countries positively affects market growth, as does an increase in the average lifespan of automobiles due to the advanced technologies used in their manufacture.
关键词：发动机冷却剂；ICE；除多余热量；热传递液体；提供防腐蚀；防止；冬季结冰
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51345.全球车载娱乐信息系统市场报告（2015-2019年）
[信息传输、软件和信息技术服务业,汽车制造业] [2015-06-13]
Conventional in-vehicle entertainment systems used to consist of radio, cassettes, and CDs. The advances in technology and growing demand for personalized entertainment, navigation, and connectivity have redefined these systems. In-vehicle entertainment and information systems area combination of software and hardware devices installed in automobiles that provide audio and video content. These systems are embedded with in-vehicle navigation devices; Internet and WiFi-connectivity; audio and video systems; display screens; and telematics systems.
关键词：车载娱乐信息系统；提供；音频和软件；车载导航设备
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51346.全球乘用车安全系统市场报告（2015-2019年）
[信息传输、软件和信息技术服务业,公共管理、社会保障和社会组织,汽车制造业] [2015-06-13]
With an increase in the production and sales of vehicles worldwide, instances of car theft or hijacking are on the rise. Passenger car security products such as immobilizers, alarms, central locking systems, and RKE protect cars from theft or hijacking. These passenger car security products immediately alert the owner and the SOCs in cases of theft. Technologies such as RFID, RTLS, and GPS are used to track down stolen cars. For instance, General Motors' subsidiary, OnStar, provides car navigation systems, subscription-based communications, roadside assistance, and stolen vehicle assistance.
关键词：增加生产；全球销售；中央锁定系统；防止；盗窃；劫持汽车；SOC；技术；RFID；RTLS；GPS
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51347.印度汽车空气过滤器市场报告（2015-2019年）
[仪器仪表制造业,汽车制造业] [2015-06-12]
Air filters improve ignition, horsepower, and mileage of an automobile. They also improve air flow to the engine and the emission control system, enabling proper ignition of fuel. The production of air filters has gained momentum mainly because of the high demand in the aftermarket, as they need to be changed at regular intervals. Based on type, the air filters are segmented into cabin and intake air filters.
关键词：空气过滤器；空气流通；发动机；排放控制系统；机舱；进气过滤器
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51348.全球车辆市场报告（2015-2019年）
[汽车制造业] [2015-06-11]
Rolling stock refers to wheeled railway vehicles that move on tracks. The vehicles primarily include locomotives, passenger rail vehicles, and freight wagons. The vehicles can be selfpropelled vehicles or propelled vehicles. These rolling stock products are capital-intensive and require huge investment and time to manufacture.
关键词：机车车辆；轮式铁路车辆；资本密集型；投资和时间
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51349.基于混沌时序最小二乘支持向量机的汽油机瞬态空燃比预测模型研究
[汽车制造业] [2015-06-09]
针对由氧传感器构成的瞬态空燃比反馈控制系统无法满足实时性要求的问题,提出了基于混沌时序最小二乘支持向量机(LS-SVM)的瞬态空燃比预测模型。对试验采集到的一维空燃比数据利用相空间重构技术构造多维空间数据,恢复空燃比时间序列的多维非线性特性,然后采用LS-SVM对重构后的数据进行训练及预测,得出预测结果。仿真结果表明:与Elman神经网络预测模型及前馈BP神经网络预测模型相比较,混沌时序LS-SVM预测模型具有更强的非线性预测能力,能够有效地提高瞬态空燃比的预测精度。
关键词：空燃比；相空间重构；瞬态工况；支持向量机；预测模型
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51350.环境温度对缸内直喷汽油车颗粒物排放特性的影响
[汽车制造业] [2015-06-09]
利用电子低压冲击仪(ELPI)对一台满足国Ⅴ排放标准的缸内直喷汽油车进行了颗粒物排放特性研究。试验按照NEDC测试循环在转鼓试验台上进行,分别测量车辆在-15℃,-7℃和25℃下的颗粒物排放。通过对试验结果的研究表明:3个温度下,颗粒物的数量浓度随温度的下降大幅上升,粒径分布范围逐渐变大,均在相同粒径下出现峰值;颗粒物体积浓度随粒径的增大而增大;数量浓度对表面积浓度的影响大于体积浓度,尤其在-15℃下,这种影响更加显著。通过对颗粒物的瞬态排放结果的分析发现:3个温度下,颗粒物的排放主要集中在NEDC循环前200s,数量浓度随车辆的加速而上升,随减速而下降;在-15℃下,在整个NEDC循环的加速工况均出现表面积浓度的排放峰值,且峰值之间较为接近。
关键词：环境温度；缸内直喷；汽油车；颗粒；NEDC
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