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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.

A weird end to a weird F1 season | 2016 Abu Dhabi Grand Prix recap

The 2016 Formula 1 season ended with a bang that came from a direction no one expected. Lewis Hamilton put his Mercedes-AMG Petronas on pole position and then got away clean to start the race. Teammate Nico Rosberg did the next best thing, lining up in second and following right behind Hamilton for most of the race. Other than Rosberg's wicked pass on Red Bull's Max Verstappen to retake second place on Lap 20, things stayed all quiet at the front. Come Lap 32 of the 55-lap race, however, observers began to wonder why Hamilton was driving so slow. The Brit, working every trick he could think of to win the Driver's World Championship instead of just the race, dogged it out front trying to push Rosberg back into the chasing mix of Red Bulls and Ferraris. Over the next 15 laps Hamilton's race engineer repeatedly radioed ideal lap times. Hamilton only occasionally hit the times until finally saying, "I suggest you let us race." When the one-stopping Sebastian Vettel blasted his Ferrari from sixth to third, nosing up to Rosberg's gearbox, Mercedes team honcho Paddy Lowe got on the radio to instruct Hamilton to go faster. Hamilton replied that if he wasn't going to win the championship he didn't care about winning the race. Hamilton repeatedly zoomed through the first sector to keep everyone behind, then clogged up the works through Sectors 2 and 3. The problem with his plan was that the Red Bulls in fourth and fifth couldn't get close enough to threaten the trio at the front; even if Vettel had got by Rosberg, Rosberg would still win the Championship with a third-place finish. As it happened, Rosberg finished second behind the disconsolate Hamilton. Vettel took third, followed by Red Bull drivers Verstappen and Daniel Ricciardo, then the second Ferrari piloted by Kimi Raikkonen in sixth. Nico Hulkenberg took seventh, beating Force India teammate Sergio Perez for the last time as an intra-team rivalry. Felipe Massa closed his F1 career with ninth place in a Williams chassis that he got to take home as a gift from the team. Fernando Alonso scored the final point for McLaren, a touch of sweet for the team after the bitterness of Jenson Button retiring on Lap 12 with suspension damage. Rosberg's second place earned him 385 points for the season, enough to take the World Driver's Championship from Hamilton by just five points. Some have put the title down to Rosberg's consistency, others to his car's reliability.

2016 Japanese Grand Prix | Hamilton faces the beginning of the end

We're told the Japanese mamushi viper haunts the undergrowth around Suzuka. If the pit viper attended the weekend's Japanese Grand Prix, it avoided human visitors but it put a nasty bite on Lewis Hamilton's championship hopes. The Briton, lined up second on the grid next to Mercedes-AMG Petronas teammate Nico Rosberg, flubbed his start. By the end of Turn 1 Hamilton was in eighth. Hamilton didn't suffer alone. The beginning of the race was a melee; many of the leaders got caught out either by the damp track or by having to swerve around slow starters. Only Mercedes' Nico Rosberg and Red Bull's Max Verstappen took off clean. The German rolled up another lights-to-flag victory despite the pass-happy race happening behind him. Rosberg was as unbothered by the Dutchman in second place as he was by the official Formula 1 camera feed. Verstappen didn't have much work to do until the final ten laps of the race. Thanks to the Mercedes team's strategy – or Ferrari waiting too long to pit – Hamilton got up to third on Lap 36 of 53. Unable to make a DRS-enabled pass on Verstappen down the front straight toward the end of the race, the Mercedes driver took a creative line through Spoon corner. Closing in down the back straight, Hamilton jinked inside to try a pass through the final chicane. Verstappen moved over in the braking zone while Hamilton was still behind him, closing the door on the move. Hamilton protested over his team radio, but seemed resigned to a third place finish after the incident – he didn't try any more passes in the final laps. The Ferrari duo of Sebastian Vettel and Kimi Raikkonen crossed the line fourth and fifth, respectively, in recovery drives after penalties. The scuderia tried an aggressive final stint after Hamilton successfully undercut Vettel in the pits. Ferrari put Vettel on the soft-compound Pirellis so he could hunt the Mercedes, but after a few laps of close pursuit the tires gave up and Vettel fell back. Daniel Ricciardo couldn't get comfortable in his Red Bull the entire weekend. The Aussie finished where he started, in sixth place. Sergio Perez and Nico Hulkenberg followed the Red Bull home in two-up formation for Force India, Williams doing the same in the final two points-paying positions with Felipe Massa and Valtteri Bottas. Rosberg's 23rd career victory – his ninth of the season and first ever in Japan – puts him 33 points ahead of Hamilton in the Driver's Championship with four races left.