In the course of developing electric propulsion systems for a range of marine vehicles, Rolls-Royce has produced a new lithium-ion energy storage system called SAVe Energy (writes Rory Jackson).
It was in development for 18 months before commencing certification by...
After a promising start in the closing decade of the 19th century, the development of electric road vehicles – and to a lesser extent, the adoption of electric power in other spheres of transport – has been a slow process (writes Lawrence Butcher). The main stumbling block has been the means of storing or generating electricity.
Range has always been a challenge, with battery technology lagging behind the...
Daimler has developed an electric bus platform that will accommodate the next generation of batteries and fuel cells (writes Nick Flaherty).
The powertrain of the eCitaro bus is based on the proven ZF AVE 130 electric axle, with 125 kW electric motors at the wheel hubs providing...
Lawrence Butcher rounds up some of the innovation highlights at this show – the largest such event in North America.
The annual EV and Hybrid Technology Expo returned to Novi, Michigan, in September 2018, with a host of companies displaying a range of...
Nick Flaherty reports on how new semiconductor technologies with wider bandgaps will improve the efficiency of electric powertrains.
Most power systems for electromobility use semiconductor devices built using a silicon process, but new technologies are maturing that provide higher efficiency and so dissipate less...
Lawrence Butcher talks to two of Volabo’s founders about their concept for a traction motor that runs off a mere 48 V.
t is generally accepted that in order to use an electric traction motor in a vehicle, where a relatively high power output is...
New testing laboratory for E-mobility drives The Von Roll institute in Breitenbach, Switzerland, recently expanded the capabilities of its already comprehensive test facilities with the addition of a new lab, dedicated to the testing of e-motors specifically for...
US motor maker Dana has developed a custom electric drivetrain for compact excavators (writes Nick Flaherty).
The drive for Mecalac’s e12 electric compact wheeled excavator uses Dana’s Spicer 112 axles and a Spicer 367 shift-on-fly transmission. The 146 kWh LiFePO4 batteries in the area previously occupied by...
Nick Flaherty explains the issues surrounding the design and manufacture of temperature control systems for electric powertrains.
Thermal management is a key part of the design and construction of an electric platform, whether it be ground-based or airborne. The thermal performance of the electronic control system, battery management system and battery packs determines...
VerdeGo Aero, a US company with the goal of producing an eight-rotor eVTOL air taxi – and headed up by Erik Lindbergh, great-grandson of aviation pioneer Charles Lindbergh – is developing a distributed power system that could be marketed to other eVTOL aircraft developers (writes Lawrence Butcher).
The company’s design, referred to as...