scholarly journals Influence of Powertrain Topology and Electric Machine Design on Efficiency of Battery Electric Trucks–A Simulative Case-Study

Energies ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 328
Author(s):  
Sebastian Wolff ◽  
Svenja Kalt ◽  
Manuel Bstieler ◽  
Markus Lienkamp
Keyword(s):  
Electric Machine ◽  
Machine Design ◽  
Commercial Vehicles ◽  
Driving Cycles ◽  
Climate Targets ◽  
Technological Potential ◽  
Electric Machine Design ◽  
Joint Consideration ◽  
Associated Design ◽  
Application Specific

The advancement of electric mobility as a measure to comply with international climate targets and sustain renewable resources in the future has led to an electrification of the mobility sector in recent years. This trend has not been spared in the logistics and commercial vehicle sector. Emerging electric powertrain concepts for long-haul vehicles have since been developed and adapted to different use cases and axle concepts. In this paper, the authors show the influence of the powertrain topology and the associated design of the electric machine on the efficiency and energy consumption of commercial vehicles. For this, existing series or prototype long-haul axle topologies are analyzed regarding their efficiency and operating points within four driving cycles. Additionally, a sensitivity analysis on the influence of the total gearbox ratio tests the assumed designs. We find that single-machine topologies offer efficiency advantages over multiple-machine topologies. However, this study highlights a joint consideration of application-specific machine design and topology to realize the full technological potential.

scholarly journals Electric Machine Design Tool for Permanent Magnet Synchronous Machines and Induction Machines

Machines ◽  
2020 ◽  
Vol 8 (1) ◽  
pp. 15 ◽  
Author(s):  
Svenja Kalt ◽  
Jonathan Erhard ◽  
Markus Lienkamp
Keyword(s):  
Fossil Fuels ◽  
Induction Machines ◽  
Electric Machines ◽  
Electric Machine ◽  
Design Tool ◽  
Pollutant Emissions ◽  
Machine Design ◽  
Permanent Magnet Synchronous Machines ◽  
Promising Solution ◽  
Electric Machine Design

The rising mobility demand of today’s society leads to an increasing strain of noise and pollutant emissions on people and the environment. An increasing environmental awareness and the scarcity of fossil fuels are increasingly placing alternative-powered vehicles in the focus of politics, research and development. Electric vehicles represent a promising solution to this problem. The electric machine represents a design control lever for the optimization of the electric powertrain with regard to efficiency, power, weight and size. Therefore, accurate and realistic machine design tools for the design of electric machines are becoming increasingly important. In this paper, the authors present an electric machine design tool for electric machines using MATLAB® in order to enable an automated machine design. The electric machine design tool is published under an LGPL open source license.

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