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A Multi-Layered and Modular Design Approach for Developing AMT Control System in Battery Electric Vehicles
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 16, 2012 by SAE International in United States
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The battery electric vehicle (BEV) equipped with automatic mechanical transmission (AMT) can realize gear-shifting automatically based on the optimal shift schedule and thereby gains higher economy and dynamics performances as well as easy drivability. As one of electronic control systems in BEV, the AMT control system takes charge of drivetrain control and plays an important role. However, nowadays the development of electronic control systems in automobile industry is facing a variety of challenges which mainly arise from complex functional requirements and market pressure, and it's the same to the development of AMT control system.
This paper presents a multi-layered and modular design approach for the development of AMT control system in a battery electric bus. The multi-layered design approach divides system into two high-level layers, each of which is then divided into a number of low-level layers. One high-level layer is the basic driver layer which is responsible for TCU (Transmission Control Unit) onboard devices driving and task scheduling; the other one is the advanced control layer which is responsible for advanced control strategy such as shift-decision making, shift timing control, fault handler and so on. The standardized application program interface (API) is applied to accomplish the interlayer interaction. Meanwhile, the modular design methodology is used in each layer to break down system function into modules, each of which accomplishes one sub-function and then is integrated to drive the complex function through sharing and combination and swapping. This modular design method allows system to be manageable for the purpose of implementation and maintenance. The modules in basic driver layer are developed in C language, while the modules in advanced control layer by MATLAB/Simulink/Stateflow tools. Finally, the experiment results are analyzed to show how the approach benefits the AMT control system development.
CitationLiu, H., Lei, Y., Li, Z., Zhang, J. et al., "A Multi-Layered and Modular Design Approach for Developing AMT Control System in Battery Electric Vehicles," SAE Technical Paper 2012-01-0963, 2012, https://doi.org/10.4271/2012-01-0963.
- Chong, ZHANG Yong-zhi, MAO Pure Electric Bus is the Direction of Development of Urban Public Transport [J] Advanced Materials Industry 2007 8 54 55
- Jun-qiang, Xi Guang-ming, Xiong Yan, Zhang Application of automatic manual transmission technology in pure electric bus IEEE Vehicle Power and Propulsion Conference, VPPC 2008
- Guang-ming, Xiong Jun-qiang, Xi Yong, Zhai et al. Development of Pneumatically Automatic Mechanical Transmission for a Pure Electric Garbage Truck IEEE International Conference on Industrial Technology 1108 1112 2010
- ISO - International Standards Organization “Information Technology - Open Systems Interconnection - Basic Reference Model: The Basic Model,” ISO/IEC 7498-1 1994
- AUTOSAR Automotive Open Systems Architecture www.autosar.org 2009
- Ginther, B. Fleischer, D. Mills, J. “Developing Production Software Applications Utilizing a Common Architecture and Complete Model-Based Design,” SAE Technical Paper 2011-01-0054 2011 10.4271/2011-01-0054
- Ulrich, K. Tung, K. “Fundamentals of Product Modularity” 39 Issues in Design Manufacture/Integration ASME 1991
- Meehan, J.S. Supporting ‘design for re-use’ with modular design Concurrent Engineering Research and Applications 15 2 141 155 June 2007
- Wenzel, T. Zalman, R. Nugraha, D. Venkataraman, J. “Implementing Automotive Microcontroller Abstraction Layer (MCAL) on 32 bit Architectures,” SAE Technical Paper 2006-01-1554 2006 10.4271/2006-01-1554