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Electric motor optimization

Why electric vehicles need model-based design?
Because of the rising complexity in new vehicles, model-based design & systems engineering is needed to cascade the requirements and trace back any modification along the engineering lifecycle. Find out more in this presentation of a customer case about electric motor optimization.

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Electric motor optimization

  1. 1. 1www.esi-group.com Copyright © ESI Group, 2019. All rights reserved.Copyright © ESI Group, 2019. All rights reserved. www.esi-group.com Electric Motor Optimization - Scilab & SimulationX Yann Debray – Scilab Director Preliminary Design 27 November 2019
  2. 2. 2www.esi-group.com Copyright © ESI Group, 2019. All rights reserved. Agenda • Introduction • Electric Motor Modeling • Finite Element Modeling • System Modeling • System Integration • Product lifecycle • Functional Mock-Up Interface • Open Services for Lifecycle Collaboration • Design Space Exploration & Optimization
  3. 3. 3www.esi-group.com Copyright © ESI Group, 2019. All rights reserved. Every single car goes through Model Based Design
  4. 4. 4www.esi-group.com Copyright © ESI Group, 2019. All rights reserved. CHASSIS & SUSPENSION CAR BODY POWERTRAIN Rising product complexity brings changes in the organizations INTERIOR Pictures from several websites, no authorization to be published
  5. 5. 5www.esi-group.com Copyright © ESI Group, 2019. All rights reserved. From Model Based Design to Model Based Systems Engineering Product Performance Lifecycle Engineering Preliminary Design Detailed Design Prototype Component Verification System Validation Manufacturing In-Service
  6. 6. 6www.esi-group.com Copyright © ESI Group, 2019. All rights reserved. Cascade requirements Preliminary Design Detailed Design Engineering Prototype V Vehicle Specs • Range • Top Speed • Time 0-100 km/h • Torque • Speed • Power Motor Specs
  7. 7. 8www.esi-group.com Copyright © ESI Group, 2019. All rights reserved. 8 Electric Motor Modeling
  8. 8. 9www.esi-group.com Copyright © ESI Group, 2019. All rights reserved. Electric motor modeling Static Finite Element Model Dynamic System Model Optimization Application
  9. 9. 10www.esi-group.com Copyright © ESI Group, 2019. All rights reserved. Static Finite Element Model Electromagnetic FEA Simulation FEM Outputs – System model InputsElectromagnetic FEM Simulation
  10. 10. 11www.esi-group.com Copyright © ESI Group, 2019. All rights reserved. Dynamic System Model SimulationX Model Inputs & Outputs MapSimulationX Model
  11. 11. 12www.esi-group.com Copyright © ESI Group, 2019. All rights reserved. 12 System integration
  12. 12. 13www.esi-group.com Copyright © ESI Group, 2019. All rights reserved. User personas • Electric Motor Optimization • System engineer • Simulation engineer • Test engineer Virtual Real System Test Simu Time
  13. 13. 14www.esi-group.com Copyright © ESI Group, 2019. All rights reserved. User stories • Electric Motor Optimization: 1. System Model 2. Finite Element Model 3. Test & Measurements Virtual Real System Test Simu Time
  14. 14. 15www.esi-group.com Copyright © ESI Group, 2019. All rights reserved. Going back to system modeling and validation ② ① ③ System Test Simu Time
  15. 15. 16www.esi-group.com Copyright © ESI Group, 2019. All rights reserved. Functional Mock-up Interface
  16. 16. 17www.esi-group.com Copyright © ESI Group, 2019. All rights reserved. FMI + Open Source New innovative ways for open collaborative Model Based Design: --> Separate the model authoring tool from the model execution tool --> Deploy from few simulation specialists upwards and downwards the cycle --> Free the model unit (FMU) from license restrictions
  17. 17. 18www.esi-group.com Copyright © ESI Group, 2019. All rights reserved. Model-Exchange & Co-simulation Scilab/Xcos Control team Software X Mechatronic team
  18. 18. 19www.esi-group.com Copyright © ESI Group, 2019. All rights reserved. Different execution modes Model Exchange Co-Simulation The solver is provided by the execution tool The solver comes from the authoring tool
  19. 19. 20www.esi-group.com Copyright © ESI Group, 2019. All rights reserved. FMU implementation
  20. 20. 21www.esi-group.com Copyright © ESI Group, 2019. All rights reserved. Scilab Application based on FMI SCILAB APPLICATION
  21. 21. 22www.esi-group.com Copyright © ESI Group, 2019. All rights reserved. Open Services for Lifecycle Collaboration Beyond simulation
  22. 22. 23www.esi-group.com Copyright © ESI Group, 2019. All rights reserved. Model Based Systems Engineering Based on VisualDSS & Partner tools In-Service Predictive maintenance, monitoring, … Virtual Test MIL, SIL, HIL, … Virtual Prototype Pre-certification Manufacturing effects Detailed Design Pre-experience Preliminary Design From requirement to Model-Based Design System integration is key Tools have to work together Product Performance Lifecycle OSLC OSLC OSLC OSLC OSLC OSLC: Open Services for Lifecycle Collaboration
  23. 23. 25www.esi-group.com Copyright © ESI Group, 2019. All rights reserved. 25 Design Space Exploration & Optimization
  24. 24. 26www.esi-group.com Copyright © ESI Group, 2019. All rights reserved. Design Space Exploration SCILAB GUI for DESIGN SPACE EXPLORATION
  25. 25. 27www.esi-group.com Copyright © ESI Group, 2019. All rights reserved. Design Optimization SCILAB GUI for DESIGN OPTIMIZATION through PARETO FRONT Multi-objective optimization: Maximize torque and efficiency, minimize ripple
  26. 26. 28www.esi-group.com Copyright © ESI Group, 2019. All rights reserved. Electrical Motor Design Optimization Design parameters: • 2D Geometry • Electro-Magnetical (flux linkage) Multi-objectives: • Torque • Power • Efficiency (in steady-stade) Torque Power Trade-off Line Theoretical optimum Design space Objective space P Pareto Front Dominant PointsDominant Points Pareto Set Efficiency
  27. 27. 29www.esi-group.com Copyright © ESI Group, 2019. All rights reserved. ご清聴ありがとうございました。 Thank you very much!
  28. 28. 30www.esi-group.com Copyright © ESI Group, 2019. All rights reserved. Potential next step: Co-Simulation SimulationX Model Finite Element ModelSystem Model

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