88 Mercedes Benz 420 Sel on 2040-cars

Auto blog

2015 Austrian F1 Grand Prix switches to alternating current

It's called the Red Bull Ring, guests are welcomed by a statue of a leaping bull, and dominating its layout demands powerful cars that can run it hard. Perhaps all that aggression is what led both Mercedes-AMG Petronas cars to run off the track in the final qualifying session on their final hot laps, a little too aggressive on the charge. Lewis Hamilton was first into the gravel at Turn 1 when he lost his car under braking, but he was still fast enough to get pole ahead of teammate Nico Rosberg, who spun at Turn 8. Rosberg started second. Or perhaps it wasn't the red bull but the scarlet horse that caused The Silver Arrows to muck it up: Ferrari driver Sebastian Vettel had Mercedes' attention all weekend, and he'd line up in third just 0.355 off Hamilton's time. Williams truly rediscovered its power, Felipe Massa going fourth fastest, teammate Valtteri Bottas in sixth. Between them was newly-minted Le Mans winner Nico Hulkenberg, yet again – can we say that enough? – pulling the still-not-updated Force India to fifth place on the grid. Max Verstappen led the Renault-powered top-ten duo in his Toro Rosso in seventh, Infiniti Red Bull Racing driver Daniil Kvyat behind him in eighth. Kvyat, however, would start down the order because of a ten-place grid penalty for needing a fifth Renault engine. After that it's back to Mercedes Ferrari power, Felipe Nasr in the Sauber in ninth, Romain Grosjean in with Mercedes power in the Lotus in tenth – but fellow Lotus driver Pastor Maldonado actually started in tenth because of Kvyat's demotion. Before we get to the race, can we take a moment to talk about the shenanigans and gaudy penalties? Kimi Raikkonen waved the Ferrari flag in Canada after a season that's been full of "We didn't get it right this time," and we thought he was back. But no. In Austria the refrain returned, the Finn kicked out of Q1 after another miscommunication with the team – he qualified 18th. If the scenario plays to form, we'll now wait for team boss Mauricio Arrivabene to issue a clarification that suggests Raikkonen missed a step. Daniel Ricciardo parachutes ten spots back for the same reason as his teammate Kvyat, needing a fifth Renault power unit, dropping him to 18th on the grid and forcing him into a five-second time penalty when he comes in to pit.

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.

Mercedes FWD platform to last until 2018, convertible and two-seater future uncertain

Mercedes-Benz seems to be expecting a lot of success from its front-wheel-drive CLA-Class. Automotive News is reporting that the sub-C-Class sedan could grow when its second generation arrives in 2018.
The current FWD platform for MB underpins the CLA, the B-Class, the GLA-Class, and the A-Class. The B-Class will arrive in North America as an EV for spring of 2014, while the production GLA crossover will arrive three to four months after that. The five-door A-Class won't be crossing The Pond. Sad faces all around.
According to AN, another model will be based on the front-drive architecture, but it won't be coming to the US market. Set to arrive next year, rumors are that it'll be a wagon version of the CLA, sort of like the ill-named five-door CLS Shooting Brake that is also a Europe-only item.