Powertrain modularity
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Welcome to the Powertrain Modularity and Integration page, your central resource for exploring the latest advancements in electric vehicle powertrain systems. This page houses a curated collection of reports, scientific papers, and other key materials that delve into modular powertrain architectures, their benefits for EV performance, and streamlined integration processes. Whether you're researching flexible design approaches or seeking insights into how modularity can improve efficiency and reduce costs, these resources provide valuable information to support your work in advancing electric mobility.
E‐gear functionality based on mechanical relays in permanent magnet synchronous machines
Permanent magnet synchronous machines (PMSMs) are still the first choice for use in electric vehicles, due to their unparalleledefficiency and power density. However, they suffer from an inherently limited speed range. As field weakening or the addition of amechanical gearbox deteriorates the efficiency of the drive, it is suggested in this paper to equip the drive with reconfigurationswitches, giving rise to a so-called e-gear. The switches—which are implemented by means of mechanical relays—allow to change the winding connection of the electric machine from a series to a parallel connection and hence to double its efficient speed range.Simulations and experimental results on a 4-kW axial-flux PMSM confirm the feasibility of the concept and prove that the reconfiguration can be conducted in less than 35 ms.
Automotive Engineers, Electric Motor Manufacturers, Electric Powertrain Researchers, Electrical Engineers, Mechanical Engineering Researchers
Driving Range, E-Volve Cluster, Electric Gears, Electric Motor, HIGHSCAPE, Permanent Magnets, Torque Density
Link:
Zenodo