Influence of Driving Behavior on Thermal and Lifetime Characteristics of Electric Machines for Automotive Applications
- Lucas Vincent Hanisch - Technische Universität Braunschweig, Institute for Electrical Machines, Traction and Drives, Germany ,
- Sridhar Balasubramanian - Technische Universität Braunschweig, Institute for Electrical Machines, Traction and Drives, Germany ,
- Marcel Sander - Technische Universität Braunschweig, Institute of Automotive Engineering, Germany ,
- Markus Henke - Technische Universität Braunschweig, Institute for Electrical Machines, Traction and Drives, Germany ,
- Roman Henze - Technische Universität Braunschweig, Institute of Automotive Engineering, Germany ,
- Ferit Küçükay - Center for Automotive Engineering in the Innovationsgesellschaft Technische Universität Braunschweig mbH, Germany
Journal Article
14-12-02-0013
ISSN: 2691-3747, e-ISSN: 2691-3755
Sector:
Topic:
Citation:
Hanisch, L., Balasubramanian, S., Sander, M., Henke, M. et al., "Influence of Driving Behavior on Thermal and Lifetime Characteristics of Electric Machines for Automotive Applications," SAE Int. J. Elec. Veh. 12(2):247-261, 2023, https://doi.org/10.4271/14-12-02-0013.
Language:
English
Abstract:
Increasing stress on power-dense electric traction machines is prompting
scientists to intensify investigations into the reliability and lifetime of
automotive drives in particular. Special focus is placed on the electrical
insulation system, whose probability of failure increases sharply at higher
stresses. The influence of physical parameters on the lifetime is investigated
in many publications. There is consensus among scientists that high temperature
significantly damages the insulation system of electric machines and leads to
failures. In this article, the human influence is additionally investigated by
considering three different driving behaviors. A mild, an average, and a sporty
driver behavior is examined on a highway, a rural, and an urban driving cycle.
The driving cycles are used as input to calculate the thermal effects in an
initial model. As a further step, a lifetime model is developed on the basis of
measured data, which indicates the lifetime as a function of the previously
calculated temperature.