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Model Based Design Accelerates the Development of Mechanical Locomotive Controls
Technical Paper
2010-01-1999
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Smaller locomotives often use mechanical transmissions instead of diesel-electric drive systems typically used in larger locomotives. This paper discusses how Model Based Design was used to develop the complete drive train control system for a 24 ton sugar cane locomotive. A complete MATLAB Simulink machine model was built to fully test and verify the shift control logic, traction control, vehicle speed limiting, and braking control for this locomotive application before it was commissioned. The model included the engine, torque converter, planetary transmission, drive line, and steel on steel driving surface. Simulation was used to debug all control code and test and refine control strategies so that the initial field commissioning in remote Australia was executed very quickly with minimal engineering support required. The Caterpillar approach to plant modeling with proprietary library of Simulink component models will also be discussed in this paper since it enabled the rapid construction of an accurate locomotive plant model.
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Authors
Topic
Citation
Reedy, J. and Lunzman, S., "Model Based Design Accelerates the Development of Mechanical Locomotive Controls," SAE Technical Paper 2010-01-1999, 2010, https://doi.org/10.4271/2010-01-1999.Also In
References
- www.cat.com/oemsolutions
- www.mathworks.com/products/simulink
- Thate, J.M. Kendrick, L.E. Nadarajah, S. “Caterpillar Automatic Code Generation,” SAE Technical Paper 2004-01-0894 2004 10.4271/2004-01-0894
- Dillaber, E. Kendrick, L. Jin, W. Reddy, V. “Pragmatic Strategies for Adopting Model-Based Design for Embedded Applications,” SAE Technical Paper, 2010-01-0935 2010 10.4271/2010-01-0935