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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.

2021 Mercedes-Maybach GLS 600 is business class without the jet lag

Mercedes-AMG demonstrated how sporty a mammoth SUV can be by unveiling the 2021 GLS 63 S at the 2019 Los Angeles Auto Show. Across the Pacific, at the Guangzhou auto show in China, Mercedes-Maybach revealed another GLS variant that puts an unabashed focus on comfort. The 2021 GLS 600 ends years of rumors by finally taking Maybach into the SUV segment. (If you don't count the limited-edition G 650 Landaulet). It's not a standalone model developed from the ground up, and it's in no way related to the electric Vision Mercedes-Maybach Ultimate Luxury concept introduced in 2018. It's a second-generation GLS dressed up in a Hugo Boss suit. Stylists spruced up the front end with Maybach's chromed waterfall grille and mesh inserts in the lower part of the bumper. An abundance of chrome trim (including big slabs of it in on the B-pillars) and Maybach emblems on the D-pillars further set the SUV apart from its non-Maybach-badged sibling. Buyers can order a two-tone paint job at an extra cost. 6.8-foot-long running boards automatically extend from under the body about a second after one of the passengers opens a door. Designers took advantage of the cavernous interior to replace the second- and third-row seats with a pair of business class-like chairs that offer heated, ventilated, massaging and reclining functions. Maybach developed the GLS with chauffeur-driven buyers in mind, so the passengers traveling in the back benefit from their own infotainment system with wireless headphones, folding tablets, wireless device chargers, plus heated and cooled cupholders. Alternatively, buyers can order the GLS as a five-seater with a three-person rear bench. The GLS 600 receives the twin-turbocharged, 4.0-liter V8 engine that's omnipresent in the Mercedes range. It delivers 550 horsepower from 6,000 to 6,500 rpm and 538 pound-feet of torque between 2,500 and 5,000 rpm in this application, and it spins the four wheels via a nine-speed automatic transmission and 4Matic all-wheel drive. Mercedes pegs its zero-to-60-mph time at 4.8 seconds. The standard 48-volt mild hybrid system briefly gives the GLS 600 an additional 21 horsepower and 184 pound-feet of torque. It also sends the kinetic energy it recuperates to the battery pack while braking or coasting, and powers a technology named E-Active Body Control which scans the road ahead and adjusts the suspension as needed if it detects a pothole, a bump or another obstacle.

Infiniti shows Q30 interior ahead of Frankfurt debut

Infiniti is supposed to debut the all-new Q30 hatchback at the 2015 Frankfurt Motor Show, but as the show is still a couple of weeks away and the company has elected to release yet another image, we aren't sure there'll be all that much to see come Sept. 15. With that in mind, then, we give you the first images of the entry-level hatch's cabin, and they're, um, wow. We knew the Q30 had a lot in common with the Mercedes-Benz A-Class but as these images show, this is far more than a common platform. The steering wheel, instrument cluster, switchgear, and shifter are direct from the Mercedes parts bin. From the looks of the images, the Q30 will even have a Mercedes-style key. This might not garner much attention in the budget ranks – take the Scion iA and Mazda2, for example – but this degree of parts sharing in the premium market is sure to raise some eyebrows. It's also a rather bewildering move for Infiniti. The company is, in effect, selling a Mercedes-Benz to any new customers it attracts. That'll certainly make a Q50 a hard sell when it comes time for an upgrade. Now, in Infiniti's defense, there are some differences in the layout here. The triple nozzle-style HVAC vents have been replaced with a more conventional pair of outlets, and the instrument cluster hood extends over the built-in navigation screen. That design decision, in particular, will certainly appeal to critics of the tacked-on-tablet look offered by Mercedes. The analog buttons for the multimedia system have also been tweaked, with the result looking far cleaner than the mess of buttons offered on Mercedes' products (we wouldn't be shocked to see this layout arrive on a facelifted A-, CLA-, or GLA-Class in the near future, though). Beyond those changes, though, there are multiple Mercedes design hallmarks here, including the location of the controls for the seat adjustments. You can check out the Q30's cabin in both right- and left-hand drive varieties courtesy of the images above. And for comparison's sake, we also included our most recent gallery of the Mercedes-Benz GLA-Class at the bottom of the page. Have a look and be sure to scroll down for the official press release. September 1, 2015 Countdown Frankfurt: First ever Infiniti Q30 active compact opens its doors before world premiere ? Q30 – The first global Infiniti compact ? Q30 interior design echoes daring expression of exterior ?