1984 Mercedes Benz 500 Sec on 2040-cars

Auto blog

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.

Daimler wants to cut EV research spending as it preps EQ

Daimler AG is hoping that the legwork it's done preparing its EQ electric-vehicle sub-brand will allow it to slightly reduce annual spending on plug-in vehicle technology. The Mercedes-Benz parent is looking to cut electric-vehicle research-and-development spending to $13.2 billion in 2017 from about $15.4 billion this year, Bloomberg News says, citing comments Daimler CEO Dieter Zetsche made to journalists in Hamburg, Germany, this week. Daimler's annual R&D spending is up from about $11.5 billion in both 2013 and 2014. Like its competitors – for example Audi and BMW and its i sub-brand – Daimler is aiming to have as much as 25 percent of its annual vehicle sales be battery-electric within the next 10 years as part of an effort to meet stricter greenhouse-gas emissions mandates in both Europe and North America. In fact, Mercedes-Benz and Daimler's Smart division collectively have at least 10 electric-vehicle models on their slates during the next few years, though Zetsche said the German automaker will continue to find ways to make its gas- and diesel-powered vehicles more fuel-efficient as well. Daimler introduced a concept version of the Generation EQ electric SUV at the Paris Motor Show late last month. It comes powered by two electric motors and is made up of a combination of steel, aluminum, and carbon fiber, and boasts a 311-mile single-charge range (on the relatively lenient European testing standards). The SUV also has 402 horsepower, and the ability to go from 0 to 60 miles per hour in less than five seconds. Zetsche said at the time that Daimler was prepping powertrains and platforms for electric sedans, wagons, coupes, and roadsters, in addition to SUVs. Additionally, Daimler's Deutsche Accumotive unit is producing the lithium-ion battery packs for the EQs. Featured Gallery Mercedes-Benz Generation EQ Concept: Paris 2016 View 19 Photos News Source: Bloomberg News via Automotive News-sub.req. Green Mercedes-Benz smart Electric eq mercedes eq

Mercedes-Benz GLA45 AMG spied in Sweden

We've spotted the all-new Mercedes-Benz GLA testing a couple times in recent months in getting closer to production form and shedding camouflage, but now it looks like we're see our first look at the AMG version of this compact crossover. The low ride height might trick some into thinking that we're just seeing the already-confirmed A45 AMG out testing, but the unique beltline, rear doors and side windows confirm this is some version of the GLA-Class.
What makes us so confident that this is the AMG model? Well, for starters, this prototype has beefier brakes with cross-drilled front and rear rotors and bigger front calipers, but it also sports dual exhaust outlets poking through the rear fascia and a suspension that has been lowered considerably. Our spy shooters said that this car's exhaust note made it almost certainly an AMG model.
Just to be clear, the GLA AMG will not be powered by a 4.5-liter engine. The closely related A45 AMG will carry the "45" in its name to celebrate the first 45 years of AMG, and our sources seem to indicate the AMG version of the GLA will do the same. We're expecting this sporty crossover to produce as much as 350 horsepower from its AMG-tuned four-cylinder engine, and like the all-new E63 AMG, it could very well come standard with 4Matic all-wheel drive.