混合动力变速器试验台搭建

对试验台架测功机的选择、电子负载、数据采集和通信、辅助系统等的设计和实施过程进行了较为详细的阐述。文章阐述的试验台架可以用于不同类型的混合动力变速器试验,并兼容手动、自动、AMT和DCT变速器,其思路及方案可以为混合动力车辆变速器试验台架搭建提供参考。     

混合动力变速器的结构特性与维修注意事项

正一、总体结构特点下述介绍的混合动力车辆上配置的变速器包括两个电动机、三个行星齿轮组和四个片式离合器。变速器结构剖面图如图1所示,变速器组如图2所示。混合动力变速器与传统自动变速器一样,变速器输入端和变速器输出端之间传动比不同。以7挡变速器为例(例如,宝马E72七挡变速器),在变速器内部,七个前进挡位通过四个固定的基本     

雷克萨斯LS600h车混合动力变速器结构原理分析

正雷克萨斯LS600h车采用了混合动力驱动系统,实现"混合动力协同驱动"理念。该系统通过动力传输性能良好的混合动力变速器L110F实现了对2UR-FSE发动机和MG2电动机的最佳协同控制。本文重点分析该车混合动力变速器L110F的结构与工作原理。1混合动力变速器L110F的结构雷克萨斯车混合动力变速器的组成如图1所示,MG1和MG2是2个交流永磁同步电动机,MG1又称为发电机,主     

并联混合动力系统构型筛选及参数优化设计

针对采用拉维娜行星齿轮机构和传统多挡变速器的并联混合动力构型选择,采用基于杠杆法以挡位设计规则、动力特性规则、工作模式规则、可制造性规则相结合的一种综合评价方法,对混合动力系统构型进行分析和筛选,并确定了构型方案和该方法的筛选流程。其次针对整车的设计目标,对发动机、电机的参数进行了选择,并运用GT-SUITE软件搭建整车纵向动力学模型。在此基础上,采用Pareto前沿对变速器参数进行了优选,最终在确定混合动力构型的基础上,优选确定了混合动力系统的设计参数,并通过仿真验证了方案的可行性,为采用拉维娜行星齿轮机构和传统多挡变速器的并联混合动力系统研究提供了理论依据。     

汽车动力传动装置的新技术与发展动向

对于目前的汽车传动装置而言，急需开展提高燃油经济性、减少废气排放、改善传动效率等方面的研究。阐述了动力传动装置中变速器的多样化发展趋势。着重介绍了手动变速器、自动变速器、无级变速器和混合动力车专业变速器采用的新技术、新结构、新设计理念及其发展动向。     

三菱扶桑卡客车公司的新型混合动力系统

三菱扶桑卡客车公司于2010年将Canter货车推向市场,该车型配装双离合变速器DUONIC~,并与单电动机相结合,构成混合动力系统。如今,新一代的Canter混合动力车型已作为环保型混合动力车进入市场。介绍了新型混合动力系统的结构、工作原理及其他新装备。     

轻客拉索式变速器操控性能提升研究

以某轻型客车为例,分析拉索式变速器操控系统的组成及各部件性能的影响因素,通过改进变速器、换档杆及拉索的结构,达到提升变速器操控性能,解决换档卡涩、档位不清等问题,并以主观评价的方式对方案的改进效果进行验证。     

行星齿轮机械式自动变速器换挡控制策略的研究

针对混合电动汽车高效传动和自动换挡的需要,提出了运用电机辅助调速实现带行星齿轮机构的机械式自动变速器换挡的控制策略.采用MATLAB/Simulink建立了换挡过程控制的模型,并进行了仿真.结果表明该控制策略能有效减小变速器换挡过程中输出转矩的波动,验证了所提出的变速方案及其控制策略的可行性.     

UFI滤清器集团开发专用混合动力传动系统过滤器

正随着汽车电气化的快速发展,电动车的市场份额逐步提高。由此也对自动变速器行业产生了显著影响。在混合动力市场有限的情况下,汽车厂商以及变速器企业通常选择减少改动已有的自动变速器批量产品,并加入电动机实现附加式(AddOn)混合动力系统。而随着混合动力及电动汽车的规模加大,开发全新的专用混合动力变速器(DHT-Dedicated Hybrid Transmission)以及纯电驱动系统逐渐成为行业新趋势。     

福伊特推出新一代混合驱动系统

福伊特(Voith)作为城市公交客车自动变速器专家,目前在全球已售出了超过20万台迪瓦(DIWA)自动变速器.福伊特凭借独有的动力分流原理,保证了自动变速器的最大舒适性和经济性,从而建立了自动变速器在城市公交客车应用中的标准.最近,福伊特基于它在城市公交客车制造上的独有技术,推出了新一代混合驱动系统应用方案.     

并联式混合动力电动汽车动力总成控制器硬件在环仿真

通过对EQ6110并联式混合动力城市客车的动力总成系统结构和控制系统的分析,研制开发了用于并联式混合动力电动汽车(PHEV)的动力总成控制器设计开发的硬件在环仿真系统;详细介绍了动力总成各个部件仿真模型的建立,包括发动机模型、电机模型、动力电池模型以及传动系统模型等;通过Matlab/Simulink的建模,运用dSPACE实时计算系统成功地构建了PHEV多能源动力总成控制器的硬件在环仿真系统;最后进行了PHEV动力总成控制器硬件在环仿真的测试试验研究。     

CLY6110PHEV油电混合城市客车车身设计

主要介绍CLY6110PHEV混合动力城市客车的车身设计和部分结构特点.     

Control strategy for clutch engagement during mode change of plug-in hybrid electric vehicle

The plug-in hybrid electric vehicle (PHEV) has various driving modes used in both internal combustion engine and electric motors. The EV mode uses only an electric motor and the HEV mode uses both an engine and an electric motor. Specifically, when the PHEV of a pre-transmission parallel hybrid structure performs mode changing, its engine clutch is either engaged or disengaged, which is important in terms of ride comfort. In this paper, to enhance the mode changing process for the clutch engagement, a PHEV performance simulator is developed using MATLAB/Simulink based on system dynamics and experiment data. Vehicle driving analysis is carried out of the control logic and properties of the mode changing. A compensated torque is applied during the mode change. This results in the rapid speed synchronization with the clutch although the trade-off relationship of the mode change. In addition, the mode changing is conducted through the transmission shifting process to rapidly synchronize with speed. The control strategy implemented in this study is shown to improve the drivability and energy efficiency of a PHEV.     

新型混合动力汽车（PHEV）技术简介

本文浅谈了一种新型的混合动力汽车—PHEV,从它的特点、动力系统结构、关键技术三方面进行了系统的阐述,指出PHEV将是传统汽车向纯电动汽车过渡的最佳方案之一。     

Design of an energy management strategy for parallel hybrid electric vehicles using a logic threshold and instantaneous optimization method

A novel parallel hybrid electric vehicle (PHEV) configuration consisting of an extra one-way clutch and an automatic mechanical transmission (AMT) is taken as the study subject of this paper. An energy management strategy (EMS) combining a logic threshold approach and an instantaneous optimization algorithm is developed for the investigated PHEV. The objective of this EMS is to achieve acceptable vehicle performance and drivability requirements while simultaneously maximizing engine fuel economy and maintaining the battery state of charge (SOC) in its rational operation range at all times. Under the MATLAB/Simulink environment, a computer simulation model of the studied PHEV is established using the bench test results. Simulation results for the behavior of the engine, motor, and battery illustrate the potential of the proposed control strategy in terms of fuel economy and in keeping the deviations of SOC at a low level.     

Design methodology of component design environment for PHEV

In this study, the design methodology for PHEV component design environment is proposed, which consists of power evaluation, component evaluation, component analysis and vehicle performance evaluation environments. First, PHEV simulators were developed based on the dynamic model of the target PHEV powertrain, and a PHEV control algorithm was designed based on the general power-split type PHEV using MATLAB/Simulink. Experimental results were used to validate the constructed PHEV simulators. The power evaluation environment provides the magnitude and direction of the power between components at the vehicle level at any selected time that the user wants to evaluate. The component evaluation environment is designed to evaluate the parameter behaviors of a component using the effort-flow causality relationship. The component analysis environment is designed to investigate component performance according to the variations of component parameters. The vehicle evaluation environment is designed to evaluate equivalent fuel economy at any selected time. It is expected that the design methodology of the PHEV component design environment proposed in this study can be extended to other x-EVs for evaluating and designing vehicle components.     

可外接充电式混合动力电动汽车特点和设计浅析

可外接充电式混合动力电动汽车（PHEV）在节能和环保方面有着显著优势。文章介绍PHEV特点,在续驶里程的设定、控制策略、电机设计、动力电池设计等方面对PHEV设计进行分析。     

Hydraulic control system design for a PHEV considering motor thermal management

In this paper, a design method for a PHEV hydraulic control system was proposed considering motor thermal management. Dynamic models of the target PHEV were developed including the hydraulic system, which consists of one mechanical and one electric oil pump. The required motor cooling flow was designed based on the motor temperature, which was obtained from a one-dimensional thermal equivalent circuit model including the heat source and oil spray cooling. Combining the PHEV powertrain model, hydraulic control system model, and the motor thermal model including the cooling system, an integrated simulator was developed for the target PHEV. Using the integrated simulator, the temperatures of MG1 and MG2 were investigated for various motor cooling flow rates when the PHEV underwent a highway driving cycle. The energy consumption of the hydraulic control system was also evaluated. It was found from the simulation results that a hydraulic control system of the target PHEV could be designed that satisfied the required flow for the motor cooling, lubrication and brake control using the design procedure proposed in this study.     

插电强混式车载电池储能系统碰撞安全性设计

针对插电强混式车载电池储能系统进行相关的碰撞安全研究,提出对车载电池储能系统在碰撞工况下的安全保护设计要求,并基于上汽所进行的插电式混合动力车型开发项目,实施具体的安全设计方案,通过试验验证设计方案的可行性,可以推广到其它相关项目应用。     

危机下的美国汽车业

随着金融危机对实体经济影响的深化,美国汽车业陷入破产危机并等待救助。文章从美国汽车业的发展历程、特征和影响等方面进行讨论,分析美国汽车业陷入困境的原因,指出美国政府对汽车业的救助只是暂时的,只有调整运作模式、顺应汽车市场趋势才能真正摆脱困境。