Systems Engineering Methodology Applied for Hybrid Propulsion System Development

Authors

Dr. H. Sandquist, P. Frejinger MSc, Dr. S. Klacar, China Euro Vehicle Technology, Gothenburg;
I. Scholten, S. Li MSc, GEELY Powertrain Research Institute, Hangzhou, China

Year

2020

Print Info

Fortschritt-Berichte VDI, Reihe 12, Nr. 813

Summary

These days, customers are expecting more from their vehicles than just point-to-point transportation. Functions such as comfort, safety, information, autonomous driving but also energy efficiency and fun-to-drive attributes, among others, are growing in demand as cars are extending into our daily lives of constant connectivity and increasing environmental concern. For many of these functions, implementation and further development is supported by the electrification of vehicle propulsion systems which is happening in parallel. The task to break down functions and allocate these to the suitable hardware and software components, while not compromising safety and overall transportation experience, becomes
far from trivial.
A structured methodology like Systems Engineering is very beneficial when interpreting the customer expectations and translating these into design requirements. Further, structured methods will help deliver functional performance, safety and security. A platform approach with clear interfaces ensure high working efficiency when addressing multiple vehicle architectures simultaneously.
To master the complexity of vehicle development for complete Hybrid Propulsion Systems, GEELY is applying a Systems Engineering Methodology. This top-down vehicle functionbased development approach addresses all items mentioned above while complementing traditional bottom-up sub-system development.