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Rivian working on 800-volt architecture, bidirectional charging, in-house drive units and battery cells

EV startup Rivian’s Q4 2021 Shareholder Letter is reminiscent of the ones we used to see from a certain other Californian EV startup in its idealistic younger days—full of forward-looking technical innovations. Rivian appears to embracing several current trends on the EV scene—going bidirectional and moving towards 800 volts, LFP cells and more in-house production… Read more »

Orange EV claims to have the most electric trucks operating in the US

Electric trucks are much in the news these days, but most of the coverage seems to focus on well-known OEMs such as Daimler and Volvo, which are just beginning to deliver e-trucks to US customers, or Tesla, which has delivered none. Meanwhile, Orange EV, founded in 2012, says it has deployed over 370 trucks to… Read more »

Chevrolet’s electric Silverado pickup to debut at CES 2022

Electric pickups are expected to be the next big thing, and newcomer Rivian stole a march on everyone—Ford’s F-150 Lightning is in pre-production, but deliveries aren’t to start until spring of 2022. Tesla’s Cybertruck is delayed until who-knows-when. GM may be struggling to catch up, but it’s moving forward. The latest news is that Chevrolet’s… Read more »

Can the global battery supply chain keep up with anticipated EV demand?

As global demand for EVs increases, many are questioning the adequacy of the existing battery supply chain. A recent article in Transport Dive discusses the challenges involved in building a global supply chain that can keep up with the anticipated growth in EV production. Elon Musk said in October that a shortage of battery cells… Read more »

The technical challenges of bidirectional chargers

For years, we’ve been hearing about an EV technology that promises to be a game-changer: Vehicle-to-Grid (V2G) bidirectional charging. My recent work with one V2G charger developer, Fermata Energy, has convinced me that V2G has found its proverbial killer app: load peak shaving for commercial/industrial energy customers. This article is going to concentrate on the… 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 »

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 »

Read past issues of Charged – Electric Vehicles Magazine

< Newer Issues Issue 40 – November/December 2018 Featuring: Churning out EVs: TDK has built a fully automated manufacturing line for its DC link capacitors Top circuit protection considerations for DC fast chargers, a new class of high-voltage consumer electronics Audi joins the class of 2019 with the e-tron PlugStar aims to break the EV… Read more »

Read past issues of Charged – Electric Vehicles Magazine

Issue 67: January-March 2024 Featuring: Issue 66: October-December 2023 Featuring: Issue 65: July-Sep 2023 Featuring: Issue 64: April-June 2023 Featuring: Issue 63: January-March 2023 Featuring: Issue 62: October-December 2022 Featuring: Issue 61: July-September 2022 Featuring: Issue 60: April-June 2022 Featuring: Issue 59: January-March 2022 Featuring: Issue 58 – November/December 2021 Featuring: Issue 57 – September/October… Read more »