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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.

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.

2015 Italian Grand Prix is smoke, mirrors, stalls, and stewards

For the first day-and-a-half of the Italian Formula One Grand Prix weekend, everything went to blueprint: Mercedes in front, Ferrari lurking, everyone else scrambling in their usual orders behind. Then qualifying came, and someone stirred the pot. About the only thing we expected was for Lewis Hamilton to put his Mercedes-AMG Petronas on pole position, the 11th time he's done it this year. He did it with a brand-new specification engine, one that represents not only an evolution in components, but also in power unit philosophy. Kimi Raikkonen lines up in second. It's been a long time since we read those words; the Iceman hasn't been on the first row since the 2013 Chinese Grand Prix, when he put his Lotus second on the grid behind... Lewis Hamilton. Raikkonen lined up just ahead of a Ferrari at that China race, then driven by Fernando Alonso. In Italy this weekend, he lined up in front of the Ferrari driven by his teammate, Sebastian Vettel, who qualified third. Both Ferraris benefitted from an upgraded power unit, ending a front-row drought for the scuderia that goes all the way back to Monaco in 2009 Germany in 2012. Nico Rosberg has a lot of work to do from fourth in the second Mercedes-AMG Petronas. Mercedes discovered a problem with Rosberg's engine but couldn't figure out the cause, so he reverted to the previous-spec engine he used in Belgium, one that's six races old. The lack of power hurt. Williams teammates Felipe Massa and Valtteri Bottas took fifth and sixth, with Massa seemingly given a team-ordered helping hand. Williams told Bottas to tow Massa down the front straight, giving Massa a blistering time in the first sector. Then Bottas did it again, ensuring he would line up behind Massa. The first Sahara Force India of Sergio Perez nabbed seventh, three places ahead of teammate Nico Hulkenberg in tenth, with Romain Grosjean in the Lotus behind Perez in eighth. Marcus Ericsson in the Sauber qualified ninth, but some clumsy driving saw him impede Hulkenberg twice. The stewards penalized Ericsson with a three-place grid penalty and two points on his superlicense, so Hulkenberg inherited ninth and Pastor Maldonado in the second Lotus inherited tenth. We hardly saw Hamilton during the race, because he led from the start, worked up a larger gap to second place on every lap, and didn't give up the lead for the whole event.