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Stellantis aims to eliminate separate inverter, charger to improve EV efficiency

Stellantis has announced that, in collaboration with French battery company Saft and French National Center for Scientific Research, has made significant progress in eliminating two major components of an electric vehicle powertrain: the on-board charger and the power inverter for the motor. The company claims that doing this will allow for better space use in vehicles, as well as improvements in efficiency, cost and reliability of components. As a quick primer, also explained in the below video, the on-board charger and power inverter are sort of translators to get the right current to different parts of the electric powertrain. The on-board charger takes AC power from the grid and converts it to DC to charge the batteries. Then when power goes from the batteries to the electric motor, the power inverter converts that DC power back to AC. These components aren't exactly small. Frequently you'll find them packaged somewhere under the hood. What Stellantis and its cohorts have developed, and have been using on a test vehicle since last summer, are small power inverter boards that can be mounted very closely to the battery packs. They can handle both conversion needs, for charging and discharging, instead of needing two separate devices. The most obvious perk to this is that you can do away with those traditional components and free up more space, either for making smaller vehicles without losing interior volume, or adding space to a vehicle that wouldn't have had it otherwise. There's the additional benefit of reduced weight, something that EVs struggle with. Stellantis also claims improvements in efficiency, reliability, and cost, however, it didn't go into detail as to how this setup would do that exactly. We'll try to get in touch with representatives from Stellantis in order to get more information. We're still a ways out from seeing this technology in production Stellantis vehicles. The company said it aims to apply it to vehicles by the end of the decade. Saft is also looking at using it on stationary battery systems as well. So maybe we'll see it on a 2029 Ram 1500 REV, but for now, we'll be living with traditional chargers and inverters. Related Video: Green Alfa Romeo Chrysler Dodge Fiat RAM Technology Electric

Submit your questions for Autoblog Podcast #317 LIVE!

We record Autoblog Podcast #317 tonight, and you can drop us your questions and comments regarding the rest of the week's news via our Q&A module below. Subscribe to the Autoblog Podcast in iTunes if you haven't already done so, and if you want to take it all in live, tune in to our UStream (audio only) channel at 10:00 PM Eastern tonight.
Discussion Topics for Autoblog Podcast Episode #317
Mitsubishi Mirage

Historic race cars highlight the RM Sotheby's 2023 Le Mans sale

Auction house RM Sotheby's is celebrating 100 years of the 24 Hours of Le Mans by organizing a big sale on the day before the race. The cars scheduled to cross the auction block have all spent time on the track, and the catalog shows how racers have evolved since the 1930s. Browsing through RM's auction catalog is like taking a five-minute course in the history of racing. The oldest car is a 1932 Aston Martin Le Mans 'LM8' that's had a remarkable life. It was developed and built for competition and entered in the 1932 24 Hours of Le Mans by the Aston Martin factory team, where it finished seventh. It was ultimately sold to a private owner but it survived, which shouldn't be taken for granted: teams often destroyed obsolete race cars, and the list of special vehicles that didn't survive World War II is longer than you'd think. Paul Sykes bought the car in 1955 and used it as his daily driver. Imagine walking out of a shop in a British village in the 1960s and finding a 1932 race car parked next to your Mini. Sykes ultimately bought another daily driver, but he kept the Aston Martin for a total of 55 years. The second-oldest car is a 1936 Delahaye 135 S with a body by coach builder Pourtout. RM notes that this is one of the most significant pre-war competition Delahaye models and adds that it finished second in the 1938 edition of the 24 Hours of Le Mans. It continued racing until 1956 and then spent several decades hidden in storage. It was fully restored in 2005, and it's now eligible to compete in historic races such as the Mille Miglia and the Le Mans Classic. Restoring it was easier said than done: the car was rebodied twice before being tucked away. None of the cars crossing the block were built in the 1940s, so we skip ahead to the 1950s with a 1954 OSCA MT4 by Morelli. It's one of 72 built, according to RM, and only 19 of those were fitted with the twin-cam, 1.5-liter 2AD engine. It raced at Le Mans in 1954 but ended up disqualified following an accident. Another highlight from the 1950s is a 1958 Lister-Jaguar 'Knobbly' finished in yellow and green. We said that all of the cars crossing the block have spent time on the track, but that doesn't mean they were built to race. The 1963 Ferrari 250 GTE 2+2 Series III is a street-legal model, yet it's included in the auction because it was used as a safety car during the 1963 edition of the race.