1 Challenge the future Philip Jansen Driver Influence on the Fuel Consumption of a Hybrid Electric Vehicle Research on the Fuel Economy Benefits of the Burn and Coast Driving Technique

2 Challenge the future Motivation Burn and Coast Longitudinal Vehicle Dynamics Optimization State of Charge Correction Results Q&A Table of Contents

3 Challenge the future Table of Contents Motivation Burn & Coast Longitudinal Vehicle Dynamics Optimization State of Charge Correction Results Reduce Fuel Consumption Rising cost of fuel Concerns over climate change Exhaustion of fossil fuels Legislation Hybrid Electric Vehicle Lower fuel consumption Lower emissions Price premium

4 Challenge the future Table of Contents Motivation Burn & Coast Longitudinal Vehicle Dynamics Optimization State of Charge Correction Results Fuel Consumption Reduction Potential

5 Challenge the future Table of Contents Motivation Burn & Coast Longitudinal Vehicle Dynamics Optimization State of Charge Correction Results Operating Points of the Engine

6 Challenge the future Table of Contents Motivation Burn & Coast Longitudinal Vehicle Dynamics Optimization State of Charge Correction Results Burn and Coast Driving Technique

7 Challenge the future Table of Contents Motivation Burn & Coast Longitudinal Vehicle Dynamics Optimization State of Charge Correction Results Problem Statement What fuel consumption improvement can be achieved when driving the burn and coast driving technique compared to steady speed driving with a parallel hybrid electric vehicle?

8 Challenge the future Table of Contents Motivation Burn & Coast Longitudinal Vehicle Dynamics Optimization State of Charge Correction Results Longitudinal Vehicle Dynamics Model

9 Challenge the future Table of Contents Motivation Burn & Coast Longitudinal Vehicle Dynamics Optimization State of Charge Correction Results Longitudinal Vehicle Dynamics Model Velocity Difference: 15 km/h 4,05% 2,87% 4,84%

10 Challenge the future Table of Contents Motivation Burn & Coast Longitudinal Vehicle Dynamics Optimization State of Charge Correction Results Longitudinal Vehicle Dynamics Model Velocity Difference: 20 km/h

11 Challenge the future Table of Contents Motivation Burn & Coast Longitudinal Vehicle Dynamics Optimization State of Charge Correction Results Optimization of the Acceleration Phase

12 Challenge the future Table of Contents Motivation Burn & Coast Longitudinal Vehicle Dynamics Optimization State of Charge Correction Results Optimization of the Acceleration Phase

13 Challenge the future Table of Contents Motivation Burn & Coast Longitudinal Vehicle Dynamics Optimization State of Charge Correction Results State of Charge (SoC) Correction Two energy carriers SoC Correction Methods SoC Balancing Linear Regression Average Efficiency Correction

14 Challenge the future Table of Contents Motivation Burn & Coast Longitudinal Vehicle Dynamics Optimization State of Charge Correction Results Average Efficiency Correction 1.SoC -> Electrical Energy 2.Electrical Energy -> Mechanical Energy 3.Mechanical Energy -> Fuel

15 Challenge the future Motivation Burn & Coast Longitudinal Vehicle Dynamics Optimization State of Charge Correction Results Table of Contents Comparison SoC Correction Methods

16 Challenge the future Table of Contents Motivation Burn & Coast Longitudinal Vehicle Dynamics Optimization State of Charge Correction Results 10,1% 31%

17 Challenge the future Conclusion Burn and Coast saves fuel Up to speed where aerodynamic drag becomes dominant In free sailing mode Future Research Adapting Control Strategy with bigger electric motor/flywheel (Automation)

18 Challenge the future Philip Jansen Question & Answers

19 Challenge the future Backup Slides

20 Challenge the future Backup Slides