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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

Fiat Chrysler dumped 40,000 unordered vehicles on dealers

In a move that echoes recent history, Fiat Chrysler has been making more cars and trucks than dealers in the U.S. are willing to accept, with Bloomberg reporting that at one point the automaker had built up a glut of around 40,000 unordered vehicles. That’s led some dealers to accuse FCA of reviving the dreaded “sales bank” accounting practice of obscuring inventory to improve the balance sheet. The company reportedly began building up its inventory of unordered cars this summer despite an industrywide slowdown in sales and an eagerness by some dealers to thin their inventories because rising interest rates are making it more expensive to hold unsold cars. The inventory build-up also coincided with Fiat ChryslerÂ’s efforts to find a merger partner, first with Renault, which fell through, then last monthÂ’s announcement that it will merge with FranceÂ’s PSA Group. FCA denies any such scheme and tells Bloomberg the rising inventory is down to a new predictive analytics system designed to better square supply with demand from dealers that is helping the company save money and narrow the numbers of unsold vehicles. The company recently agreed to pay a $40 million civil penalty to the U.S. Securities and Exchange Commission to settle a complaint that it paid dealers to report fake sales figures over a span of five years. While no one is suggesting that FCA is in dire financial straits — the company saw higher than expected earnings in the third quarter and record profits in North America — the practice has strong historical precedent by Chrysler, which built up bloated inventories in the run-up to its two federal bailouts, in 1980 and 2009. It was also common at GM and Ford during the 2000s, when all three Detroit automakers struggled with excess manufacturing capacity and plummeting sales in the lead-up to the Great Recession. Back in 2012, CFO Magazine wrote about a report that explained automakersÂ’ rationale for the practice and how it works: Say fixed costs for a given factory are $100, and that the factory can make 50 cars. Consumers, however, demand only 10. Under absorption costing, if the company makes all 50 cars, its cost-per-car is $2. If it makes only up to demand, or 10 cars, the cost-per-car is $10. Although each car adds variable costs for steel and other parts, if those costs are low, the company still has an incentive to make more cars to keep the cost-per-car down.

Top torque-to-weight ratios under $100k, $50k and $25k

Horsepower may steal a lot of headlines, but the always-more-complex torque figure is often a critical one for both the workingman and the motoring playboy. The measure of rotational force represents the twist that can liquefy one's tires or haul one's horse trailer. Good stuff.
It follows then, that as with the horsepower-to-weight list that we assembled for you a few months ago, a list of cars that offer the most pound-feet with the fewest pounds to carry, is an interesting one to break down. Sure, there's a big difference in how the torque is applied from a turbocharged six-cylinder in a Swedish luxury sedan and a massive heavy-duty truck's turbo-diesel. But being the car/stat geeks that we are, we think it's kinda neat that those two vehicles rank near each other where torque and weight intersect.
As with the horsepower list, we've given you figures as pounds per every one pound-foot. Again broken down into broad price categories, we've got a mixed bag of 2014 and 2015 models here, too. Every effort has been made to select the most up-to-date prices and specs, and we've also to omitted some '14 cars that won't be re-upped after the ongoing yearly changeover.