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首页> 外文会议>DSC-vol.75-2; American Society of Mechanical Engineers(ASME) International Mechanical Engineering Congress and Exposition; 20061105-10; Chicago,IL(US) >AUTOMATIC GEARSHIFT ALGORITHM AND ITS DYNAMIC PERFORMANCE SIMULATION OF TRACKED VEHICLE WITH INTEGRATED POWER TRAIN SYSTEM
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AUTOMATIC GEARSHIFT ALGORITHM AND ITS DYNAMIC PERFORMANCE SIMULATION OF TRACKED VEHICLE WITH INTEGRATED POWER TRAIN SYSTEM

机译：集成动力传动系统的履带车辆自动排挡算法及其动态性能仿真

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摘要

The automatic gearshift algorithm and its dynamic control is an important research area in tracked vehicle design. In the paper the models of power train system such as engine, transfer gearbox, hydraulic torque converter, planetary gearbox, running gear propulsion system and virtual terrain are built. The program for gearshift algorithm design is developed. The model of designed gearshift algorithm is developed with MATLAB/simulink and finite state machine theory. The hydraulic control system is modeled with MATLAB/simulink and the oil pressures can be applied on the clutches and brakes of power train system. The planetary gearbox and other transmission parts are modeled through EASY5 power train library models and the gear contact stiffness, torsional stiffness of links between planetary gear sets and shafts are taken into consideration. The running gear system model are built with ADAMS, and the terrain loads from the interaction between terrain and tracks are applied on the sprocket extended to the power train, which considers the dynamic contacts among road wheel, track and terrain. Many terrain models including the slope, obstacle and road model with A, B, C, D etc. levels at different vehicle speeds can be built and integrated with the virtual prototyping modelsThese different disciplinary models are integrated with MATLAB, ADAMS and EASY5 development environment and the virtual test can be done in various operation conditions. The integrated method is through the interfaces provided by these simulation software.It realizes the time synchronization between two different models of EASY5 and MATLAB/simulink with the digital electric circuit theory. The virtual test is been made in the integrated MATLAB/simulink development environment. The tracked vehicle's acceleration performance is simulated. The acceleration time from second gear to 32 km/h is about 14.5 seconds. Many other performances such as the virtual dynamic torque loads of rotating parts, the clutch torque capacity and thejerks of any parts in the power train can be obtained from simulation and can be verified with the physical tests later.There are some innovations in modeling method in this paper. Firstly, it builds many subsystem models with the virtual prototyping technology. Secondly, it builds the integration environment and interfaces. Many models of different areas are integrated to simulate transmission gearshift process. Thirdly, it provides a modeling method and environment for power train modeling and simulation. Fourthly, the acceleration performance of a tracked vehicle is simulated and the two results of virtual and physical tests are close.
机译：自动换档算法及其动态控制是履带车辆设计中的重要研究领域。本文建立了动力总成系统的模型，例如发动机，变速箱，液力变矩器，行星齿轮箱，行走机构推进系统和虚拟地形。开发了换档算法设计程序。利用MATLAB / simulink和有限状态机理论建立了设计换挡算法模型。液压控制系统是使用MATLAB / simulink建模的，并且油压可以应用于动力传动系统的离合器和制动器。行星齿轮箱和其他变速箱零件通过EASY5动力总成库模型进行建模，并考虑了齿轮接触刚度，行星齿轮组与轴之间的连杆的扭转刚度。使用ADAMS建立起落架系统模型，并将地形和履带之间的相互作用所产生的地形载荷施加到扩展到动力传动系统的链轮上，该链轮考虑了车轮，履带和地形之间的动态接触。可以建立多种地形模型，包括在不同车速下具有A，B，C，D等级别的坡度，障碍物和道路模型，并与虚拟原型模型集成。这些不同的学科模型与MATLAB，ADAMS和EASY5开发环境集成在一起，虚拟测试可以在各种操作条件下进行。集成方法是通过这些仿真软件提供的接口实现的，它利用数字电路原理实现了EASY5和MATLAB / simulink两种不同模型之间的时间同步。虚拟测试是在集成的MATLAB / simulink开发环境中进行的。模拟了被跟踪车辆的加速性能。从第二档加速到32 km / h的加速时间约为14.5秒。可以从仿真中获得许多其他性能，例如旋转部件的虚拟动态扭矩负载，离合器扭矩容量和传动系中任何部件的冲击，这些性能随后可以通过物理测试进行验证。这篇报告。首先，它利用虚拟原型技术构建了许多子系统模型。其次，它构建了集成环境和接口。集成了许多不同区域的模型来模拟变速箱的变速过程。第三，它为动力总成建模和仿真提供了一种建模方法和环境。第四，模拟了履带车辆的加速性能，虚拟和物理测试的两个结果接近。

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