我国汽车物流现状与发展研究

文章介绍了我国汽车物流的现状,对发展中存在的问题进行了分析,就如何推动汽车物流业的发展提出了对策。     

虚拟制造技术在汽车装配工艺中的应用

随着我国的经济水平的快速提升与科学技术的创新发展,大量的新兴科技被应用于现代化生产加工过程当中,其中虚拟制造技术作为一项由多门学科先进知识成果所形成的综合系统全新技术,在制造行业具有广泛应用。将虚拟制造技术应用于汽车装配工艺中,不但能模拟产品制造和装配工艺过程,还能有效处理汽车装配过程中产生的技术性问题,对于有效提高汽车生产质量和生产效率而言具有重要意义。     

汽车颜色标准色板制作的研究

在汽车新颜色开发时,设计色板是由研究院确认的色板,用于指导工程颜色的开发。标准色板是指涂装工艺制作的某一油漆颜色色板,作为油漆材料及油漆件颜色控制及评价的参照。标准色板包含A板和B板,A板由油漆供应商实验室提供,用于指导车身及外饰件油漆材料的开发;B板是在车型生产线随线制作的色板,用于指导车身颜色和外饰件颜色的喷涂及检验。文章主要是围绕着B板的制作,提高B板制作合格率展开的研究,并对B板规范管理、减少制作B板的成本也做了详细的解说,避免因B板颜色偏差,造成车身与外饰件颜色匹配后存在色差现象。     

Exhaust emissions and fuel consumption of a triple-fuel spark-ignition engine powered passenger car

This paper examines the influence of compressed natural gas, liquefied petroleum gas and gasoline fuel on the exhaust emissions and the fuel consumption of a spark-ignition engine powered passenger car. The vehicle was driven according to the urban driving cycle and extra urban driving cycle speed profiles with the warmed-up engine. Cause and effect based analysis reveals potential for using different fuels to reduce vehicle emission and deficiencies associated with particular fuels. The highest tank to wheel efficiency and the lowest CO₂ emission are observed with the natural gas fuelled vehicle, that also featured the highest total hydrocarbon emissions and high NO_x emissions because of fast three way catalytic converter aging due the use of the compressed natural gas. Retrofitted liquefied petroleum gas fuel supply systems feature the greatest air-fuel ratio variations that result in the lowest TtW efficiency and in the highest NO_x emissions of the liquefied gas fuelled vehicle.