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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.

My year in EVs: 8 electrics that are changing the car industry

The year 2021 will go down as an inflection point in the auto industry’s transition to electric vehicles. It's when many much-anticipated models became reality. No longer sketches or sketchy prototypes, electric vehicles appeared from all corners with everything from the Lucid Air to Ford Mustang Mach-E changing how we think about transportation. I managed to drive a lot of them, and as I went through my notes, I realized IÂ’ve got a mini memoir of the seminal EVs of 2021. HereÂ’s my take on eight of them. Hummer EV Easily the most over-the-top EV I tested this year. The 1,000-hp super truck lived up to the hype with its domineering presence, stupendous power and simply being a reincarnated Hummer. I took it for a short spin on- and off-road at the General Motors Proving Grounds in Milford, Mich., and was impressed with the airy cabin, removable sky panels and expansive touchscreens. Yes, I crab walked, which felt like steering a pontoon boat, though I can see why it would be useful. Lucid Air Dream Performance The most beautiful sedan I tested all year, EV or otherwise. Unlike the futuristic Mercedes EQS — which is quite attractive — LucidÂ’s car is a blend of mid-century modern interior aesthetics and classic European exterior styling. When I walked up for my test drive, someone who IÂ’m pretty sure was comedian Jon Lovitz was sitting inside and taking it all in. As it sat in the valet of a hotel in a wealthy suburban enclave north of Detroit, the Lucid drew more attention than any of the Mercedes, Cadillacs or Lexus models passing by. The driving experience was enveloping. Starting at $169,000 for the Performance model (reservations are closed), the Lucid I sampled packed 1,111 hp and 471 miles of range. From the precise steering to the comfortable suspension, the dynamics were spot-on. It's a formidable product, and all the more impressive given itÂ’s LucidÂ’s first. Chevy Bolt EV The Bolt was the most pleasant surprise for me. It handled well, offered low-to-the-ground hot hatch dynamics and the steering was dialed-in. Adding a crossover variant for the new generation was a smart play. On a summer morning where I went to a first drive of the Ford Bronco at an off-road course, my hour-long commute in the Bolt was an enjoyable appetizer.  The Bolt was also my biggest disappointment due to its extensive recalls for fire risk. Ironically, I had the Bolt in my driveway when the initial recall went out for the previous generation (2017-19).

Lewis Hamilton cruises to victory at the Singapore Grand Prix

SINGAPORE (Reuters) - Britain's Lewis Hamilton eased to victory from pole position at the Singapore Grand Prix on Sunday as the Mercedes driver extended his championship lead over Ferrari's Sebastian Vettel to 40 points with six rounds remaining. Hamilton held off a mid-race challenge from Red Bull's Max Verstappen to register a record-equaling fourth triumph at the floodlit Marina Bay Street Circuit track, while Vettel finished third to slip further behind in the title race. "Great job everyone, what a weekend... keep pushing, keep pushing, we've got this," Hamilton told his team over the radio soon after crossing the line at the end of the 61st lap. Hamilton's 69th overall victory was his seventh of the season and it was built on the foundations of a stunning qualifying lap on Saturday, when he stormed to pole in a car deemed inferior to the Ferraris and Red Bulls on this circuit. For Vettel and Ferrari it was another disappointing weekend after the car showed plenty of pace through all three practice sessions, the German's cause not helped by a questionable strategy and a poor pitstop. Hamilton won this race from the third row a year ago when Vettel, Verstappen and Kimi Raikkonen collided before Turn One but there was no repeat of such drama this time after the drivers got off to a clean start at the head of the field. There has, however, been a safety car period in every race in Singapore since it joined Formula One in 2008 and it was deployed on the opening lap after Sergio Perez pushed his Force India team mate Esteban Ocon into a wall after Turn Three. "Sorry guys there was no room," Perez told his team over the radio. Vettel got past Verstappen before the safety car emerged and slotted in behind Hamilton, but his race unraveled when the German pitted first on the 14th lap but got stuck in traffic and overtaken by the Dutchman when he made his stop for fresh tires. BACK MARKERS Hamilton was cruising up front but suffered a mini-crisis on the 38th lap when he got stuck in a queue of tail-enders, which allowed Verstappen to get right up behind him. The Dutchman had a look up the inside as Hamilton struggled to pass the back markers but the Briton just stayed ahead and was able to pull clear all the way to the checkered flag once he had a clear track ahead of him. "It definitely got a little bit interesting toward the end with the back markers as you could already feel the draft from the cars when you were five and six seconds behind," Hamilton added.