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Mercedes-Benz engines with 48-volt systems coming in 2017

As part of a big green push announced yesterday, Mercedes-Benz is jumping into the world of 48-volt power. The company will launch a new family of efficient gasoline engines next year and will begin rolling out 48-volt systems with it, likely in its more expensive cars first. Mercedes will use the 48-volt systems to power mild-hybrid functions like energy recuperation (commonly called brake regeneration), engine stop-start, electric boost, and even moving a car from a stop on electric power alone. These features will be enabled through either an integrated starter-generator (Mercedes abbreviates it ISG) or a belt-driven generator (RSG). (RSG is from the German word for belt-driven generator, Riemenstartergeneratoren. That's your language lesson for the day.) Mercedes didn't offer many other details on the new family of engines. There are 48-volt systems already in production; Audi's three-compressor SQ7 engine uses an electric supercharger run by a 48-volt system, and there's a new SQ5 diesel on the horizon that will use a similar setup with the medium-voltage system. Electric superchargers require a lot of juice, which can be fed by either a supercapacitor or batteries in a 48-volt system. Why 48-volt Matters: Current hybrid and battery-electric vehicles make use of very high voltages in their batteries, motors, and the wiring that connects them, usually around 200 to 600 volts. The high voltage gives them enough power to move a big vehicle, but it also creates safety issues. The way to mitigate those safety issues is with added equipment, and that increases both cost and weight. You can see where this is going. By switching to a 48-volt system, the high-voltage issues go away and the electrical architecture benefits from four times the voltage of a normal vehicle system and uses the same current, providing four times the power. The electrical architecture will cost more than a 12-volt system but less than the complex and more dangerous systems in current electrified vehicles. The added cost makes sense now because automakers are running out of ways to wisely spend money for efficiency gains. Cars can retain a cheaper 12-volt battery for lower-power accessories and run the high-draw systems on the 48-volt circuit. The industry is moving toward 48-volt power, with the SAE working on a standard for the systems and Delphi claiming a 10-percent increase in fuel economy for cars that make the switch.

Hollywood stars drink hydrogen B-Class F-Cell emission water in Death Valley [UPDATE]

A plug-in electric vehicle can be used to power a house during a winter storm, but if you're more worried about the heat of, say, Death Valley, then maybe you'll want a Mercedes-Benz B-Class F-Cell along. That's the message of a new video from Daimler and starring Diane Kruger (Inglourious Basterds) and Joshua Jackson (Fringe) that promotes the company's hydrogen-powered car. The gist? You can drink the tailpipe emissions. The two Hollywood stars drove in Death Vally without any water in their F-Cell but had a special tank hooked up to the tailpipe to collect the H2O drips as they drove in 100+ degree temperatures. There's a reason these two actors were chosen, since they've been driving an F-Cell in their daily lives for two years, according to the Diamler press release. The text is, shall we say, a bit hyperbolic - "Their lives rely on the emissions of the B-Class F-CELL" it says, totally ignoring the film crew that is obviously along for the ride and more than likely had a few bottles with them. Also, when the California Fuel Cell Partnership promoted the same idea a few years ago, it clarified that, "A fuel cell doesn't produce enough water to fill your glass. ... If fact, fuel cells produce about the same amount of water as gasoline vehicle – about 1/3 cup for a full day of driving." Thus, this whole thing is a Hollywood stunt, but it's a visually effective one. See for yourself in the mini-movie below. UPDATE: Daimler has told AutoblogGreen that there was no "extra Hollywood magic" needed for the water collected in the video. Instead, Madeleine Herdlitschka, who works at global communications for Mercedes-Benz Cars, said, "Considering the technical characteristics, the Mercedes-Benz B-Class F-CELL emits about 9 kg of water vapor per kg of hydrogen while driving. The vehicle has a hydrogen capacity of about 3.7 kg, what is sufficient for a max. of about 400 km of range. A tailor-made construction, designed by the production company Markenfilm Crossing in cooperation with our fuel cell experts, made it possible to collect the water in a tank - previously cooling the vapor with a specially designed pipe system." This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

Average new-vehicle transaction price hits a whopping new peak in December

Elevated prices for products and higher borrowing rates led to record high transaction prices for new vehicles in December, with the average cost in the U.S. rising to a record $49,507, according to data from Kelley Blue Book released today. The report notes that ATPs — average transaction prices — have climbed above suggested retail prices — MSRPs — for more than a year. Sales volumes were up in December on a year-over-year basis by more than 5%, a situation Kelley attributed to improved supply. Overall sales for 2022, however, were off 8% year over year. “The transaction data from December clearly indicates overall prices showed no signs of coming down as we headed into year-end,” said Rebecca Rydzewski, research manager of economic and industry insights for Cox Automotive. “Luxury prices fell slightly in December, but non-luxury transaction prices were up. Truck sales were particularly strong last month, and with many trucks selling for more than $60,000, a new record was all but inevitable.” Industry analysts claim the most obvious headwinds in the new car market are generated by higher interest rates, forced by the Federal Reserve's rate hikes intended to tame inflation, and by generally limited inventory. A recent report from J.D. Power showed that the average monthly payment for a new vehicle loan in December was $718, up $47 from a year ago. But 16% of consumers in December took out loans with monthly payments of over $1,000. Consumers think vehicles, and electric vehicles especially, are way too expensive. Fortunately, manufacturersÂ’ incentives, all but extinct in the past two years, are returning, especially in the electric-vehicle and luxury market, the Kelley data suggest. Plus, "With the new tax credits on the way, electric vehicle ATPs will drop lower for qualifying vehicles,” Rydzewski said. Non-luxury brands, such as Honda and Kia, showed particularly strong performance in December, with the average price paid at $45,578 — a record high and an increase of $994 month over month. Meanwhile, the average luxury buyer paid $66,660 for a new vehicle last month. Mercedes-Benz and Land Rover showed the most price strength in the luxury market, transacting between 2.6% to 6.5% over sticker price. But luxury brands Audi, BMW, Infiniti, Lexus, Lincoln, and Volvo showed the least price strength with some discounting in effect, selling 1% or more below MSRP in December, according to the survey.