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New motor architecture could be a game-changer

At a time when EV manufacturers are eager for efficiency gains of 2-3% in their powertrains, any new technology capable of providing 10% or more would transform the state of competition among vehicle OEMs (writes Rory Jackson). With an eye towards enabling that, US company ePropelled has developed and patented a new type of electric […]

Focus on...


Seals and sealants perform a host of unsung but vital functions. Peter Donaldson explains the different types, their uses and the materials they are made from

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DSD software optimises e-aircraft powertrain designs

In early August, electrified propulsion engineering consultancy Drive System Design (DSD) revealed that it is working on optimising the propulsion systems for electric aircraft as part of the Driving the Electric Revolution (DER) challenge at UK Research and Innovation. The initial study is intended to evaluate powertrain technology that could be used on a range […]


Candela C-7 speedboat

Hydrofoiling gives this serial production boat high speed and long endurance. Rory Jackson examines the engineering decisions behind its design

New Products

Dana launches e-axles for Class 7 and 8 vehicles

Dana Incorporated has expanded its Spicer Electrified e-powertrain offerings to include a family of single and tandem e-axles designed for a range of Class 7 and 8 applications. The Zero-8 e-axles include systems for direct drive and now 4 x 2, 6 x 2, and 6 x 4 multi-speed e-axle systems.  The new e-axles are designed to […]

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Freedom from rare earth magnets?

A good alternative to magnets made from rare earth elements such as neodymium, dysprosium and samarium – which are expensive, volatile in price and supply and polluting in their extraction – is something of a holy grail for the electrical industry in general and EVs in particular. Enter Niron Magnetics with its Clean Earth iron […]

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OxDrive joint venture unveils self-contained e-hub for farm vehicles

OEMs developing small EVs for agricultural applications, including those intended to have autonomous capabilities, want to focus their efforts on the core agricultural functions and the autonomy (writes Peter Donaldson). Typically, however, they are faced with specifying the driveline, sourcing components and integrating them, says Chris Horton of OxDrive, a joint venture between Performance Projects […]

New Products

Eviation unveils its production all-electric Alice aircraft as it prepares for inaugural flight

Eviation Aircraft, a global manufacturer of all-electric aircraft, has unveiled the design for its Alice all-electric aircraft, which is on track for first flight later this year. The production configuration defines Alice’s path to certification, and entry into service is expected in 2024. The Alice can carry nine passengers and two crew members. It is […]


Dyno development

For ICE powertrain companies looking to transition into e-powertrain engineering, the construction of the new test cells poses on of the biggest cost-barrier to entry, writes Rory Jackson. High-speed dynamometers and test benches capable of measuring the performances of e-motors are inevitably pricey, and many such companies already possess significant testing equipment for cycling combustion […]

Deep Insight

Skateboard platforms

Against the backdrop of a boom in skateboard platforms for EV designs, Nick Flaherty looks at the approaches taken by some of their suppliers. Changing the wheelbase of a traditional car or truck design by 6 or 7 in creates a ripple effect whereby half the transmission shaft has to be redesigned, changing the centre of gravity and the requirements for the suspension. That means a whole new vehicle design is needed...