Deep Insight

Vehicle-to-grid charging

Although bidirectional charging for EVs remains a niche technology, writes Nick Flaherty, progress on its uptake is being made. Vehicle-to-grid (V2G) charging is an appealing technology, as it enables EV batteries to be used as part of the electricity grid to even out demand. For example, electric car owners could charge their...

Deep Insight

Battery Testing

Battery test systems are proving key to speeding up the development times for new batteries, as Nick Flaherty explains. At the heart of testing battery cells, modules and packs are the levels of voltage and current. Temperature and pressure are increasingly important conditions ...

Deep Insight

EMI

Nick Flaherty explains the different ways of protecting against EMI in EV platforms, and why it needs to be considered from the earliest stages of system design. Essentially there are only three ways to handle electromagnetic interference (EMI) – don’t produce it, filter it out or shield from it. These options lead to a wide range of design trade-offs in e-mobility designs, from the power systems through the...

Deep Insight

Power and torque density

How do you choose the most suitable type of motor for a given application? Peter Donaldson gets some expert input. One of the many challenges facing the developers of the BB Green ferry project was finding an electric propulsion motor of sufficient power, power-to-weight ratio, compactness and...

Deep Insight

Welding

Nick Flaherty explains the pros and cons of the various welding techniques for connecting cells to form battery packs. A battery pack in an EV consists of a large number of individual battery cells that are held together mechanically and connected electrically. Making those mechanical and electrical connections poses several challenges, including the joining of multiple thin...

Deep Insight

Fast Chargers

Planned roll-outs of fast chargers have highlighted the main issues and challenges for their design and development. Nick Flaherty reports. Over the past five years, the number of fast chargers available worldwide has increased tenfold, and over the next five the aim is to have one fast charging station available for every 100 electric...

Deep Insight

Hydrogen

Nick Flaherty highlights some of the inroads developers are making into rolling out a range of hydrogen-powered vehicles. Many of the engineering challenges with converting hydrogen to electricity to drive a motor in a vehicle have been addressed over the past decade through the development...

Deep Insight

Supercapacitors

Nick Flaherty looks at the latest developments in supercapacitor technology for e-mobility systems. Batteries are the go-to technology for powering electric vehicles of all kinds, but supercapacitors (also known as ultracapacitors) are increasing in capacity and performance to become a viable alternative in some applications. Supercapacitor technology is already well-established in...

Deep Insight

Artificial Intelligence

Nick Flaherty looks at the latest advances in – and uses for – AI in the electric vehicle market. There are many uses for machine learning and predictive algorithms, often combined as Artificial Intelligence (AI), in the development and operation of electric vehicles. AI techniques can be used as part of...

Deep Insight

Uniti One

Lawrence Butcher reports on how a Swedish start-up plans to design and manufacture a market-ready EV from the ground up. If one looks across the automotive EV market, it seems barely a week goes by without one company or another announcing that it will revolutionise the electrification of...