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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.

2015 Japanese Grand Prix is a little Mercedes, a lot of zen

Just one week on from the issues in Singapore Mercedes-AMG Petronas appeared to have solved its clamp problems and everything else. Daniil Kvyat at Infiniti Red Bull Racing took the two Free Practice scalps on Friday, but when it came time for qualifying the front of the grid looked really familiar: Mercedes' Nico Rosberg took his second pole position of the season, Lewis Hamilton next to him in second. Kvyat had a hand in that, too, the Russian getting into a big accident in Q3 when he put two wheels on the grass heading into the hairpin and veered into the tire wall so hard that he flipped. That ended qualifying before a number of drivers had a chance to improve their times, Hamilton among them. That's how Valtteri Bottas got in third for Willliams ahead of Sebastian Vettel fourth for Ferrari. Felipe Massa had the second Williams in fifth, ahead of Kimi Raikkonen in the second Ferrari. Daniel Ricciardo lined up sixth for Infiniti Red Bull Racing, a team we're going to have to enjoy watching for the rest of the season since it might not exist come 2016. Romain Grosjean gave Lotus some good news by getting into eighth, the team so strapped for cash that it couldn't get into its hospitality area, so it held press conferences outside and ate at Bernie Ecclestone's Paddock Club. Sergio Perez took ninth for Sahara Force India, and Kvyat slotted into tenth after not setting a time. The Russsian's race would begin from the pit lane once his mechanics rebuilt his car. It wouldn't be a Formula One start lately without someone at the front having clutch problems. This time it was pole man Rosberg, whose power unit got too hot and put him a few horsepower down on Hamilton through Turns 1 and 2. That's half of how Hamilton took the lead from the lights going out, and the Brit kept it throughout the race. Rosberg, however, said his race was lost when Hamilton pushed him wide through Turn 2, a move Hamilton defended. Rosberg finished almost 19 seconds behind his teammate, a gap that probably isn't fully explained by that opening incident. Hamilton's race was so uneventful that we almost never saw him on camera – that is, we saw him so much less than we usually see him when he's out in front and unpressured that Nikki Lauda said he'd ask Ecclestone why the cameras avoided him. The conspiracy theory holds that FOM was punishing Mercedes for not supplying Red Bull with engines next year.

Recharge Wrap-up: 2015 Honda CR-Z now on sale, Daimler and Linde building hydrogen stations in Germany

The 2015 Honda CR-Z hybrid is now available at dealerships, for slightly more money. The CR-Z starts at an MSRP of $20,145 (plus $790 in destination charges), up from the $19,995 price of the 2014 model. For those who don't want to row their own gears with the six-speed manual transmission, the available CVT adds an extra $650 to the price, but also offers better fuel economy, especially in the city. The manual-equipped CR-Z gets 31 mpg city/38 highway/34 combined, while the CVT version is rated at 36/39/37 mpg. The 1.5-liter engine and electric motor provide a combined peak 130 horsepower. The manual CR-Z offers 140 pound-feet of torque, with the CVT version providing 127 pound-feet. Customers can also soup up their new CR-Z with upgrades (including a supercharger) from Honda Performance Development. Learn more in the press release below. Daimler and Linde are teaming up to build hydrogen fueling stations in Germany. The automaker and gases and engineering company, with the help of a few oil and gas companies, plan to install 13 new stations by the end of 2015. The installations precede a push by Daimler to get more fuel cell vehicles on the road. "From 2017, we are planning to bring competitively priced fuel-cell vehicles to market," says Daimler's Herbert Kohler. "So now is the time to build a nationwide fuelling infrastructure." Linde will supply the stations with fully renewable hydrogen. Read more in the press release below. In 1899, an EV set a world landspeed record, and Wired has revisited the story with a nice look back at the "La Jamais Contente" and its driver, Belgian engineer Camille Jenatzy. Jenatzy built an electric car to race in a hillclimb, which he won while clocking a top speed of 17 miles per hour (measured the old-timey way - without radar guns). Just a few weeks later, another man set a landspeed record of 32 miles per hour, beginning a back-and-forth series of setting new records. Then, on April 29, 1899, "The Red Devil," as Jenatzy became known as, surpassed 100 kph (62 mph) when his torpedo-shaped electric car set a record of 65.8 mph. It was powered by two 25-kilowatt electric motors. Read the whole story over at Wired.