As far as we know, all EVs in production by major automakers use a conventional lead-acid battery for the 12 V system (surprising, but true – more on why in a bit) and this battery needs charging, just as it does in an ICE vehicle. While you could hang an alternator off the traction motor… Read more »
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Infineon introduces new CoolSic Schottky diodes for on-board charger applications
Infineon Technologies’ new CoolSiC diodes are designed for ruggedness and efficiency, to meet the high standards required of hybrid and electric vehicles. Infineon says these diodes are the most durable on the market, due to their high corrosion and humidity resistance. The company will release CoolSiC Diodes in the 650 V class in September. An… Read more »
Tecnomatic helps automakers design specialty assembly processes for advanced stator technologies
There seems to be an endless array of electric motor topologies, architectures, and configurations. Among the many design choices that engineers face is the shape of copper wire that is wound in the stator. In a new paper published in the IEEE Transactions on Industry Applications, researchers compared using flat wire hairpin winding and stranded… Read more »
Cummins debuts new battery pack line-up for commercial vehicles at Battery Show Europe
Indiana-based heavy-duty engine specialist Cummins unveiled its lithium-ion battery portfolio at the recent Battery Show Europe in Hannover, Germany, including battery packs and modules that can be integrated with the company’s new electric and hybrid powertrain portfolio. Cummins’s product range includes the BM44E (44 kWh) and BM20E (20 kWh) low-voltage modules, designed to power material… Read more »
A look at Lucid Motors: Q&A with CTO Peter Rawlinson
The legacy automakers are slowly and methodically developing new EVs, with various levels of enthusiasm, but the most ambitious plans for new vehicles are coming from a handful of EV startups. Most of these pioneers of the new auto industry share a formula: deep-pocketed investors (many from China), former Tesla employees on staff, and plans… Read more »
What’s the current state of wireless EV charging?
By Lisa Jerram, principal research analyst overseeing Navigant Research’s Transportation Efficiencies program Wireless charging is becoming more mainstream among consumer electronics – witness the proliferation of wireless chargers at CES 2018 – but it is not just for smartphones and fitness bands. Automakers are working in earnest to offer wireless charging options for their… Read more »
Subaru uses National Instruments’ hardware-in-the-loop tech to simulate road conditions
Subaru is using hardware-in-the-loop (HIL) technology from National Instruments (Nasdaq: NATI) to simulate actual road conditions for EV testing. Traditionally, engineers have conducted vehicle tests using finished cars on test courses or public roads. However weather and fluctuating road surface conditions can make it difficult to conduct reproducible tests. Moreover, according to NI, EVs are… Read more »
The Charging market in Europe and the US: EVBox explains the difference
Since EV charging company EVBox was founded in the Netherlands in 2010, it has grown to see its charging stations in over 30 countries around the world, powering nearly 1,000 cities. “On a global level, we have more than 50,000 connected smart charging stations. We have the largest installed base worldwide,” EVBox CEO Kristof Vereenooghe… Read more »
2018 smart fortwo loses its top – and its gas engine
The smart isn’t for everyone, and it has never pretended to be. The media buzz these days centers around the trendy trio – Model 3, the Bolt and the new LEAF, each of which aspires to be “your affordable, every-day, one-and-only car,” as Motor Trend recently put it. The smart does not aspire to any… Read more »
A closer look at energy consumption in EVs
When it comes to factors that affect energy consumption in EVs, the big kahunas are weight and wind resistance (aka CdA), but there are other factors that can have a surprisingly outsized effect and that tend to be overlooked, such as the use of climate control (AC, of course, but especially heat). Conversely, one factor… Read more »