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面向大规模定制的汽车企业协同商务系统 总被引:3,自引:1,他引:3
在目前的汽车企业把大规模定制作为重要战略竞争手段的背景下,协同商务系统成为支撑居于汽车产业链中心地位的整车厂实现大规模定制的核心IT平台。文章拟从产品开发、供应/制造/销售、售后服务三个方面阐述在面临大规模定制竞争模式下的汽车企业协同商务模型,并结合上海汇众汽车制造有限公司进行案例分析。 相似文献
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大规模定制是汽车生产方式升级换代的历史选择,是汽车制造业全球国际分工的必然结果。中国汽车企业必须走大规模定制之路。 相似文献
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标杆管理是在企业中形成的一种面向实践、面向过程的以方法为主的管理方式。通过实施标杆管理,汽车制造企业能够清楚地认识自我,同时博采他人之长为自己所用,促进企业发展。本文首先介绍了标杆管理的原理和优势,并在此基础上给出了汽车制造企业标杆管理的具体操作程序,为汽车制造企业制定计划并实施提供参考。 相似文献
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大规模定制-专用汽车企业发展的新模式 总被引:1,自引:0,他引:1
随着信息技术、制造技术的迅速发展和世界市场由相对封闭到日益开放的转变,现代专用汽车企业的竞争环境发生了巨大的变化,主要表现在产品生命周期缩短、客户需求多样化和个性化、大市场和大竞争、交货期缩短、多品种小批量生产比例增大和市场的动态多变等方面。国外汽车制造业正在从大规模生产向大规模定制生产转变,汽车制造业的新时代一一大规模定制生产时代正在到来。 相似文献
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大规模定制是汽车市场竞争的方向,而平台化开发是实现大规模定制策略的有效手段。综合考虑产品设计开发阶段和制造阶段的关联性,结合CODP客户订单分离点制定合适的延迟策略,能够最大限度地发掘平台化造车的优势。 相似文献
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汽车制造企业广泛采用大规模定制的模块化策略,提出了一种全新的多层可配置的扁平化BOM技术,在设计层面,能大大减少工程发布的数据量并简化工程变更难度;在工艺层面,能简化零部件的工艺路线编制;在制造层面,能自动翻译成传统的BOM结构树,支持传统的MRP及ERP运算。实施该策略后,能明显提升企业在大批量制造和订单驱动的柔性制造能力,降低生产管理成本并缩短交货周期。 相似文献
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大规模定制:汽车业供应链管理的新模式 总被引:2,自引:0,他引:2
随着世界汽车市场由传统的相对稳定的市场演变成动态多变的市场,汽车业所面临的社会、经济、制造环境与客户需求都发生了显著的变化。为了适应这种变化,越来越多的汽车企业采取了从大规模生产方式向大规模定制生产方式转化的策略。为了适应汽车业这种新的制造模式的变化,汽车业的供应链 相似文献
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随着世界市场由传统的相对稳定的市场演变成动态多变的市场,汽车企业所面临的社会、经济、制造环境与客户需求都发生了显著的变化。为了适应这种变化,越来越多的汽车企业采取了大规模定制生产方式。为了适应汽车业这种新的制造模式的变化,汽车业的供应链管理也必须有相应的变化。 相似文献
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Hydraulic hybrid powertrains are a critical technology used in buses to improve fuel economy and emission performance. New exploration in configuring a parallel hydraulic hybrid bus (PHHB) is developed in this paper with no changes made to the conventional base bus driveline. An integrated model and simulation of the parallel hydraulic hybrid bus is built based on AMESim, which is used to model the hydraulic powertrain and conventional bus driveline, and interlinked with a Matlab/Simulink/Stateflow model of the control unit. Compared to conventional buses, the fuel economy of the PHHB improved by 28% in real road tests at the SMVIC (National Center of Supervision and Inspection on Motor Products Quality (Shanghai)); the approximate improvement of fuel economy was 30% in simulated runs, which validates our model. Then a Non-linear Programming by Quadratic Lagrangian algorithm (NLPQL), is applied to optimize control strategies for improving fuel economy and emissions. Simulations also demonstrate that fuel economy and emission performance can be significantly improved. However, optimum parameters for maximum fuel economy and minimum emissions are not consistent. Simulation results show tradeoffs between fuel economy and emissions in PHHB, and optimal parameters can be selected by balancing design objectives. 相似文献
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G. -Q. Liu Y. -C. Yan J. Chen F. -F. Xu 《International Journal of Automotive Technology》2010,11(4):573-580
A hydraulic power-assist system is a hydraulic regeneration system that can significantly improve fuel economy when installed
on a conventional bus operating in urban traffic. This paper presents a methodology for matching a new hydraulic power-assist
system (HPA) to a conventional bus. The HPA and the conventional bus were modeled using the AMESim environment. The HPA was
optimized using a simulation-based orthogonal design method with two indexes, the fuel economy and the acceleration performance.
According to the simulation results, the volume of the accumulator was the primary factor affecting fuel economy, and the
gear ratio of the transfer case was the primary factor influencing the acceleration performance. As a result, tradeoffs between
the two indexes are required for a practical operational scenario. Experimental results demonstrated that the optimal HPA
installed on a conventional bus was able to satisfy the acceleration performance requirement of the vehicle and also reduced
fuel consumption by 25 percent. 相似文献
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This paper establishes the simulation model of a city bus on the basis of the EQ6110 bus prototype and its experimental data.
According to the actual urban driving cycle, the fuel economy and the traction performance of the EQ6110 city bus have been
simulated, and factors such as the driving cycle, the loss of power to engine accessories, the gear-shifting strategy, the
fuel shut-off strategy of the engine, etc., which influence on the bus’s fuel economy, are also quantitatively analyzed. Some
conclusions are drawn as follows: (1) driving cycles have a great influence on the fuel economy of a city bus; (2) under the
typical urban driving cycle of the public bus in China, the engine fuel shut-off strategy can save about 1 to 1.5 percent
of the fuel consumption; and (3) the optimized gear-shifting rules can save 6.7 percent of the fuel consumption. Experimental
results verify that the fuel economy for the EQ6110 public bus is improved by 7.2 pecent over the actual Wuhan urban driving
cycle of the current public bus in China. 相似文献
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客车燃油经济性计算软件的开发与运用 总被引:1,自引:0,他引:1
在客车开发设计阶段需要对其燃油经济性进行预测和估算,通过常规计算所得的估算值与试验值相比较存在数值偏小的问题。中分析了客车计算燃油消耗值偏小的主要原因,通过对发动机万有特性曲线的拟合,以及对发动机功率的修正,利用最小二乘法、高斯-赛得尔迭代法等计算方法,编制了燃油经济性计算软件,利用该软件计算得到的燃油值能较好地接近试验值。 相似文献