2014 Ram 1500 Tradesman/express on 2040-cars

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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

Ram 1500 TRX fuel economy figures are out — and economy isn't the right word

Ram published many statistics when it introduced the 1500 TRX, but one part of the puzzle was missing: fuel economy. It finally released those figures, and they confirm that supercar-like power brings supercar-like thirst. Driven with a light right foot, the TRX returns 10 mpg in the city, 14 mpg on the highway, and 12 mpg combined. It's the least efficient Hellcat-powered model; Jeep's Grand Cherokee Trackhawk scores 13 mpg combined, while Dodge's Charger and Challenger post 15. Figures for the Durango haven't been published yet, but there's no reason to think it will use more gas than the TRX. At 12 combined, the truck is about on par with the Lamborghini Aventador S. On the surface, that's not great. Keep in mind the mighty TRX was developed for off-road performance, however, and we doubt fuel economy entered the equation at all. It's a body-on-frame truck powered by a 6.2-liter V8 supercharged to 702 horsepower, it has mammoth 35-inch all-terrain tires to push around, and it weighs 6,350 pounds. Viewed in this light, 12 mpg is actually shockingly decent. Conversely, the folks who designed the Toyota Prius weren't concerned about its water fording ability, its approach angle, or its zero-to-60-mph time. Motorists who place fuel efficiency at the very top of their priorities list have a growing list of excellent options to choose from, even if they're in the market for a pickup. At the other end of the Ram spectrum, the rear-wheel drive 1500 posts figures of 23, 33, and 26, respectively, when it's equipped with the 3.0-liter turbodiesel V6. The TRX starts at $71,690 including destination, and it will arrive in showrooms later in 2020. Related Video:

NHTSA closes investigation on 4.7M FCA power modules, no recall

FCA US hasn't had the best time with recalls as of late. Not only did the company recently agree to greater safety oversight and paid $105 million to the government, that came just days after hacking fears prompted a 1.4-million model recall campaign. However, a recent decision to close an investigation by the National Highway Traffic Safety Administration means that the automaker doesn't have to worry about another major recall possibly affecting 4.7 million vehicles, according to the agency's report (as a PDF). Last September, the Center for Auto Safety petitioned NHTSA to investigate an alleged problem with the totally integrated power module (TIPM) on these FCA US models. The group claimed that a fault with the component could cause a variety of maladies, including stalls, not starting, catching fire, unintended acceleration, and airbag non-deployment. At the time, it also submitted 70 cases where this had reportedly happened. According to NHTSA, "no valid evidence was presented in support of claims related to airbag non-deployment, unintended acceleration, or fire resulting from TIPM faults and these claims were found to be wholly without merit based on review of the field data and design of the relevant systems and components." The agency did find signs of an issue with the fuel pump relay in some Jeep Grand Cherokees and Dodge Durangos, but FCA US issued recalls for the problem in September 2014 and February 2015. Without anything else to go on, the Feds don't think it's worth investigating this topic any more.