A previous article examined loss mechanisms in traction motors, which tend to be the single biggest source of losses in a modern EV drivetrain. This time, the focus is on the various power semiconductors, as they are the next biggest source of losses. Also covered in brief are ways to mitigate these losses and design… Read more »
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A look at Volkswagen’s MEB architecture
The all-electric underpinnings that the VW Group will use to build dozens of EVs A few weeks before the end of 2019, if all goes according to plan, the first Volkswagen I.D. Neo electric car will roll off the assembly line at the company’s plant in Zwickau, Germany. Different versions will offer ranges from 160… Read more »
New automated vacuum pressure soldering system for IGBT power modules
SST Vacuum Reflow Systems, a subsidiary of photonics and microelectronic company Palomar Technologies, has launched the SST 8300 Series Automated Vacuum Pressure Soldering System for IGBT power modules in high-reliability automotive and commercial applications. Offered in either single- or triple-chamber systems, the series enables above average void rates, heating up to 500° C, and fast… Read more »
Scaling EV charging infrastructure: Standards and interoperability
Sponsored by ABB. Download a PDF version of this article. A steeper growth curve for electric vehicles will depend on continuous technological development, further commercialization and practical regulatory policies. Standards and interoperability underscore all of these trends, across vehicles, charging systems and communication networks – and are a key driving force for electric vehicle adoption…. Read more »
24M unveils Dual Electrolyte System for next-generation cells
Battery company 24M unveiled its Dual Electrolyte System at the International Battery Seminar & Exhibit last month in Florida. According to 24M, the system permits cells with compositionally distinct electrolytes to be manufactured at scale, enabling next-generation cell chemistries. These cells can provide energy densities exceeding 350 Wh/kg as well as improved cycle life and… Read more »
Freudenberg develops lightweight plastic housing to seal against electromagnetic radiation
Researchers at Freudenberg are developing a plastic housing material for EV electronics as an alternative to heavier and more costly aluminum. To protect against electromagnetic waves that can disrupt signal flow in microprocessors and transmitter-receiver systems, EV makers typically encase electrical components in conductive metal housings, usually aluminum. Freudenberg says the additional weight of the… Read more »
America’s biggest cities could save up to 60% on fuel by electrifying buses
America’s largest metropolitan areas could save an average of 37 percent on fuel costs by electrifying buses and light-duty fleet vehicles, according to a report by EV charging company AMPLY Power. The report also found that charging regimes focused on off-peak hours can save up to 60 percent compared to internal combustion engine (ICE) vehicles… Read more »
University of Georgia orders twenty electric buses
The University of Georgia has ordered 20 Proterra Catalyst E2 buses. A $10-million grant awarded to the university by Georgia’s State Road and Tollway Authority made the purchase possible. The Catalyst E2 features two electric motors, 510 horsepower and 24.6 MPGe. Catalyst buses have previously been ordered by Florida State University, University of Montana, Duke University… Read more »
AI algorithm accurately predicts the life cycle of Li-ion batteries
Scientists at MIT, Stanford and the Toyota Research Institute (TRI) have developed an AI algorithm that they say can accurately predict the useful life of Li-ion batteries. The algorithm analyzed factors such as voltage decline to make predictions as to how many more cycles a battery would last. The predictions turned out to be within… Read more »
Linear Labs raises $4.5 million to market its electric motor
Electric motor manufacturer Linear Labs has closed a $4.5-million funding round to market its flagship motor, the Hunstable Electric Turbine. The Hunstable Electric Turbine uses multiple rotors. Compared to available permanent magnet motors, Linear Labs’s motor produces twice the torque, three times the power density, two times the output and 10 percent further range, according… Read more »
