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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.

2016 Mercedes-AMG GLE63 S Coupe 4Matic brings big power to go with massive name

Mercedes-Benz hopped into the luxury crossover coupe market with both feet with the recently debuted GLE-Class Coupe. While the existence of beauty in this segment is still up for debate, the Merc really gives the BMW X6 a direct competitor. With the newly unveiled 2016 Mercedes-AMG GLE63 S Coupe 4Matic, the engineers from Affalterbach are now also turning their sights on their rivals from BMW's M division. Don't let the name fool you. The GLE63 AMG Coupe eschews the twin-turbo 4.0-liter V8 from the C63 AMG in favor of an even bigger power source. This crossover uses the company's thundering 5.5-liter twin-turbocharged V8 with stop/start that pumps out 577 horsepower and 561 pound-feet of torque – 10 hp and 8 lb-ft more than the X6 M. The deep well of muscle means the sprint to 62 miles per hour takes just 4.2 seconds; faster than you can say the coupe's mile-long official name. The AMG Speedshift Plus 7G-Tronic seven-speed automatic gearbox routes all of that grunt to all four wheels with a 40:60 front/rear split. The styling of this beast gets a special nod from AMG by being the first CUV from the company to get its A-wing grille. Even if the rest of the design can be polarizing, this portion looks fantastic. The airfoil in the bumper is supposed to look like a stylized A, and from some angles, the wing almost appears like its just floating there. Each side of the GLE63 features black wheel arch flares, and around back there's a small lip spoiler on the tailgate. It's complimented by a new rear apron that has air outlets at each corner, integrated tailpipes and a diffuser in the center. Being a Mercedes-AMG, buyers sit in the lap of luxury inside. The seats are covered in Nappa leather with AMG crests on the headrests. The performance brand's moniker can also be found on the three-spoke steering wheel, and the instrument panel even gets covered in black Nappa. Obviously, if this isn't enough for potential buyers, Mercedes has a ton of options on hand. They include performance-oriented items like a sport exhaust system, 22-inch wheels and carbon fiber engine cover, but there're also more opulent choices like the fragrance mister and a high-end Bang & Olufson sound system. Scroll down for all the details on the much more powerful GLE Coupe. The new Mercedes-AMG GLE63 S Coupe 4MATIC Driving performance reinterpreted Affalterbach/Detroit.

F1 cancels season-opening Australian Grand Prix over coronavirus

Workers pack up in pit lane after the cancellation of the Australian Formula One Grand Prix in Melbourne, Friday. / AP   MELBOURNE, Australia — As thousands of fans queued to get into the Australian Grand Prix, seemingly unperturbed by the coronavirus pandemic, the Formula One teams and drivers were packing up to leave. The rapid spread of the virus left organizers with little choice Friday but to cancel the season-opening race, particularly after McLaren withdrew because a team member tested positive for the COVID-19 illness and following heavy criticism from six-time world champion Lewis Hamilton. The two practice sessions that usually showcase what the teams have been improving in the off-season were less than two hours from starting when the decision was publicly announced. Principals of nine F1 teams and organizers met overnight and “concluded with a majority view of the teams that the race should not go ahead," a joint statement by FIA, motorsport's governing body, local organizers and F1 said. “It's been a very fluid situation," F1 chairman Chase Carey said. “We're all disappointed not to have it, but I think we've made the decision we had to make." “It's not like it came out of the blue," Carey told a news conference beside the F1 paddock that ended in light rain. “A week ago, when teams started traveling here, we felt it was the right decision (to stage the race). Clearly the situation changed in the interim." Practice, qualifying and Sunday's race were all scrapped, casting doubt over the Bahrain Grand Prix which is scheduled to be held next week and the Vietnamese GP, scheduled for April 5. Authorities in Bahrain have already said no fans will be allowed into the circuit. Carey said a decision on whether or not to go ahead with the the race would be made in coming days. The Chinese GP has already been postponed from April. Hamilton used the first official news conference with F1 drivers in Melbourne to say he was shocked that organizers planned to proceed with the Australian Grand Prix, which regularly attracts more than 300,000 people over four days. McLaren's decision to withdraw was ultimately the catalyst for the cancellation. That person and 14 other McLaren team members have been placed in quarantine in a Melbourne hotel for 14 days. Hamilton's Mercedes-AMG Petronas team said it sent a letter to the FIA and F1 requesting the cancellation and had commenced preparations to leave before the decision was publicly announced.