Vitesco Technologies develops motors with coils without permanent magnets

Gasgoo News According to foreign media reports, at the 35th InternationalElectric VehicleSymposium (EVS) held in Oslo, Norway from June 11 to 15, Vitesco Technologies will showcase a number of vehicle electrification innovations, including Includes an Externally Excited Synchronous Motor (EESM).The motor, which does not use rare earth metals, will be optimized for high-speed, long-distance travel, making it suitable for future long-distance electric vehicles.

(Image source: Vitesco Technology)

Efficiency and Sustainability as Principles

Currently, Permanently Excited Synchronous Motors (PSMs) arethe standard equipment for vehicleelectrification .These motors are highly efficient and can be used for urban traffic or medium-range driving.However, with the increasing range of electric vehicles, on long-distance high-speed routes, externally excited synchronous motors (EESMs) show advantages, especially at high speeds, being more efficient than PSMs.

The rotor of an externally excited synchronous motor uses coils instead of magnets.Using an externally excited synchronous motor, in addition to providing efficiency at high speeds, is not affected by changes in the price of permanent magnets.In addition, it helps to reduce carbon emissions.Vitesco Technologies is poised to expand its product portfolio to use EESM technology for already successful shaft drives, including power electronics.

In the second presentation of this EVS Symposium, Vitesco Technologies will present systems and solutions that can further improve the efficiency of electric driving, in addition to integrating electric axle drives, including:

Battery managementto monitor batteries and their state of charge, improving safety and battery life.

Power electronics, a key component of live drive equipment, supply power not only to the electric motor, but also to the high-voltage battery.

Thermal managementprovides greater cruising range, comfort and faster charging.

The high-voltage boxserves as the central electronic device for electric vehicle charging technology and vehicle energy supply.

The main controller, like a small server, provides everything needed to drive an electric car.

Thomas Stierle, member of the company's executive board and head of the electrification technology and electronic controls business, said: "With these product portfolios, Vitesco Technologies is focusing on a globally scalable platform for electric vehicles. There is potential for the future as the company grows its business. Achieving sustainable and CO2-neutral mobility.”

Glass inverters with high-resolution measurement technology

Another highlight is the vehicle used as a rolling test bed.Benefit from the highly sophisticated measurement technology, the function of the inverter can be monitored in real time.From the "glass inverter", selected values ​​such as current, efficiency and losses are transferred to the Vitesco Technologies Cloud.