Posts Tagged: Issue 46 – November/December 2019

EV motor shaft bearings: One of the few moving parts

CoorsTek argues that ceramic bearings are the best fit for EVs The less moving parts in a machine, the better. That’s one often-heard argument for the superiority of electric powertrains over internal combustion engines (ICEs), in which the number of moving components is dramatic. Sure, EVs have a lot of electrons moving this way and… Read more »

EMC for EVs: Understanding electromagnetic compatibility

Engineers who design power electronics supplied by the mains have had to contend with meeting various electrical noise and safety standards for decades now, but their counterparts in the automotive industry were mostly free to do as they pleased. This was mainly because 12 V isn’t considered a shock hazard and cars are effectively rolling… Read more »

Q&A with Rivian’s VP of Propulsion (Full Interview)

The electromobility revolution is gathering speed, but the world’s EV-makers have fallen behind popular tastes in terms of the form factors auto buyers want, and this has emerged as a roadblock to mass adoption. Buyers love SUVs and pickups, and automakers love the high profit margins associated with these models. Electric SUVs are starting to… Read more »

2020 Taycan: The Germans respond to Tesla with an excellent new Porsche and a valiant EV effort

Probably no manufacturer felt as stunned and threatened as Porsche by the 2012 arrival of the Tesla Model S – and the acclaim that followed. The German brand enjoyed an unparalleled reputation as the maker of fast, sleek, and pricey sports cars, and had lately expanded into high-end SUVs and then sedans. In early 2013,… Read more »

EVmatch: A simple, low-cost way to monetize your charging stations

Electric vehicles are a perfect fit for the sharing economy. Teslas and other EVs are some of the most popular vehicles on peer-to-peer car rental platform Turo. Many of the new car-sharing platforms that are popping up feature EVs. In the near future, EV owners could be earning money by letting utilities use their vehicle… Read more »

Zeal puts workplace and residential MUD chargers on autopilot

Nikhil Bharadwaj was sitting in his office, pondering his personal mission in life: to solve climate change “without bothering people.” After graduating as an energy engineer from Penn State University, that mission brought him to California, where he led the Transportation Innovation Team for Schneider Electric’s Energy and Sustainability Services department. For the umpteenth time… Read more »

Why did Porsche go to the trouble of designing an 800 V Taycan EV?

How higher-voltage battery packs enable faster charging ecosystems Porsche took on a considerable engineering challenge when it decided to design an 800 V EV system for the Taycan, because nearly every other hybrid and EV in the world operates at 400 V or less. There simply was not a wide range of high-voltage off-the-shelf parts… Read more »