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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

2019 Dodge Challenger SRT Hellcat Redeye Widebody First Drive Review | Son of a beast

PORTLAND, Maine — They told us the Hellcat Redeye Widebody is a "Hellcat that's been possessed by a Demon." But what I'm telling myself is, Save it for the track. I hadn't even put the pedal all the way to the floor, and the world around me had warped in my peripheral vision. I peeled my skull from the headrest and contemplated the supercharger under the double-snorkel hood in front of me force-feeding air to the's 6.2-liter Hemi V8, producing a hair under 800 horsepower. With my stomach returning to its usual place, I tried to summon the patience not to roast the tires again. Relax, enjoy the drive, explore the car, and save the rest for the track. I tried to restrain myself from adding to the many strips of rubber already smeared across the hilly, meandering roads between Portland, Maine and Club Motorsports across the state line in New Hampshire. But then there's always another stop sign, and something possesses me to misbehave again as I pull away. The 2019 Dodge Challenger SRT Hellcat Redeye includes a number of borrowed features that helped the Dodge Challenger SRT Demon slap me in the back of the helmet back at Lucas Oil Raceway. It has the same displacement Hemi with a 2.7-liter supercharger providing 14.5 PSI of boost. That pressure is thanks in part to the "Power Chiller," which diverts the A/C refrigerant to cool the air intake. It offers the torque reserve system for explosive launches, as well as the strengthened driveshaft to handle it all. It won't do a wheelie, but it'll scream in your face as it hurls you straight to jail. Compared to the standard Hellcat, it gets a higher top speed of 203 miles per hour, and quarter mile times reduced by a precious tenth of a second (11.1 seconds at 131 mph for the standard Redeye, and 10.8 seconds at 131 mph for the Redeye Widebody). That said, Dodge has ensured that Demon reigns supreme in the Challenger hierarchy. For one thing, the Demon has 840 horsepower and 770 pound-feet of torque, compared to the Redeye's 797 horsepower and 707 pound-feet. The Demon's suspension is specifically tuned for the weight transfer characteristics of drag racing, and can lift its front wheels off the ground if you nail the launch with the narrow tires on it. Also, while the Redeye does have line lock to let the rear wheels spin while braking the front calipers, it doesn't get the Demon's transbrake to keep the car locked into position as throttle is applied for launch.

FCA UConnect fiasco could set over-the-air updates back years

Since cars have become more software dependent, most major automakers have been inching toward enabling over-the-air updates to keep vehicle electronics, ranging from infotainment systems to safety features, current. But there are only two car companies — Fiat Chrysler and Ford —± currently doing OTA updates, and on a limited basis. GM CEO Mary Barra announced last summer that the automaker will launch a new EV architecture and infotainment system capable of over-the-air updates "before 2020." The one exception, per usual, is Tesla. Since the release of the Model S almost six years ago, the maverick EV automaker has made routine OTA software updates a core part of its vehicle platforms and value proposition, and has sent out updates for everything from adjusting ride height to enabling Autopilot, largely without incident. When I've asked automakers why they can't do the same thing, I've heard reasons ranging from running afoul of their dealers (and archiac regulation) to security concerns. Automakers like Ford and General Motors say they want to act like tech companies, which routinely send out OTA updates for a wide range of devices, but overall the car industry still moves at a very cautious snail's pace. And when automakers do try to move faster and take more risks — unlike with a smartphone update, which people bitch about but live with — the consequences can be significant when things go wrong. That's the case with Fiat Chrysler America and its recent public-relations nightmare when an OTA update went awry. The update went out at the end of last week for the Uconnect system in late-model vehicles, and it made head units go into a near continuous reboot, which caused owners to not only lose access to entertainment features, but also critical functions like emergency assistance. Almost immediately, owners took to Twitter to express outrage, and FCA was caught flatfooted. A tweet went out on Monday on the UconnectCares Twitter account that read, "Certain 2017 & 2018 Uconnect systems may experience a reboot every 45-60 seconds. Our Engineering teams are investigating the cause and working towards a resolution.