Tag Archives: electric motor

Gleagle IG Hybrid

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Gleagle IG Hybrid
IG Geely or with the product name Gleagle IG criticized by China Car Times. “Small cars are only suitable for use in the city. However, the door that opens upward makes it difficult, even to nudge the car parked next to it. Doors can also hit the roof of the parking lot, “writes the media.

Surprisingly again, the media does not know exactly where the car was made. They estimate that only cars made in Lin Hai, Zhejian Province, not far from the headquarters of Geely, Hangzhou.

Interestingly enough, the hood of this small hybrid car is also fitted with solar panels. According to Geely, the panel used to charge the battery. As a source of prime mover, this car uses the engine capacity of 1.0 liters.

To couple power hybrids, electric motors, and batteries supplied in accordance with the desire and ability of consumers. “Costs flexible,” wrote Geely. This was done because Geely electrical and battery system that offers the lowest price of 10,000 yuan or USD 13.2 million.

“Consumers can choose different standards according to their needs, like buying a digital camera that uses a variety of memory cards,” added Geely in the site about this concept car sales.

He also explains, in particular for electrical components, there was a contradiction between the price of batteries and the distance. The further the distance that can be generated from battery-powered, large increases in size. The price is also so expensive.

IG is on display today has undergone a change from the prototype on display before. If previously only used three seats with the concept of a triangle, now, the car has two seats in front (including the driver) and two behind.

Explained all, the car is equipped with a large alternator and start & stop system. We stopped at the intersection waiting for the green light, the engine will die. Engine will live longer automatically once trodden on the accelerator. System used is the mild hybrid or a combination of series and parallel (the same used Prius).

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Toyota Lexus LS600h

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Toyota Lexus LS600h
PT Toyota Astra Motor, Indonesia Lexus has brought two units of the latest Lexus LS600 product hybrid. One unit will be used to sign test vehicle registration number (TPT), while the other is a special order.

“The launch will be done next year, but already there are two units in the present. There is a special order, I have to say enggak for whom, the other for tests,” said Principal Indonesia Lexus, Johnny Darmawan.

Lexus LS600h sedan apply a hybrid system on the engine. This car is categorized environmentally friendly vehicles carrying capacity 5.0 V8 engine and an electric motor with a maximum power of 430 hp.

Zero Emissions, All Green: Introducing the Nissan Leaf EV

As we profiled on Friday, Nissan Motor Company chose August 2, 2009 to debut its groundbreaking, game changing zero emission electric vehicle at its new corporate headquarters in Yokohama, Japan, and we were here to check it out. Nissan calls it the Leaf (Leading, Environmentally Friendly, Affordable, Family Car), and says it will launch in the U.S. in late 2010 in limited quantities. The Japanese automaker is boasting that the Leaf will be the first affordable (target price is reportedly $25,000-30,000), real-world, mass-market (by 2012) electric vehicle and that it will have a range of some 100 miles. But before we jump into what it all means and what’s going with those funky headlights, here is a brief synopsis on the program.As we have covered in many recent updates, this is Nissan’s most significant endeavor in environmentally friendly motoring. This new electric vehicle (EV) program goes well beyond the company’s recent attempts at improving fuel economy via such measures as the widespread rollout of CVT transmissions and the licensing Toyota’s hybrid technology. In fact, the Leaf does away with our traditional notions of fuel and jumps right into the long promised future of mass marketed electric vehicles.How does it work? The Leaf runs on a large battery pack composed of 192 flat lithium ion (LiOn) battery cells that lay under the floor and between the wheels. This pack delivers enough power to support the 80kW electric motor for up to 100 miles of driving on a full charge. Recharging will be possible on 110V and 220V house current (8 hours/4 hours respectively for a full charge) and via special higher voltage quick charges. Fine, but what’s with the name?According to Nissan, the “LEAF” name (Nissan PR would of course like us to USE ALL CAPS FOR THE NAME) is what you’d expect a name associated with a tree to be — making a green statement. Here’s some good spin about the Leaf name from the press release: “Just as leaves purify the air in nature, so Nissan LEAF purifies mobility by taking emissions out of the driving experience.” Of course, there’s that little matter of where the Leaf will draw its electricity from — we’re guessing from a power plant that produces lots of emissions. But that’s another discussion…You might have noticed nowhere on the vehicle are the words electric vehicle or letters EV. Instead, what’s prominently displayed on the Leaf is a big ‘ol zero emissions badge. Shiro Nakamura, Nissan’s Chief Creative Office and design head explains why:”EV is a means to get zero emissions, so we intentionally avoided EV branding. Zero emissions is about the overall concept, not the hardware.”But let’s talk about the hardware — particularly the styling — since we already are familiar with how it works and drives.At first glance, the Leaf looks new, yet familiar — and distinctly Japanese. It should, as its exterior and interior styling are the result of Nissan’s Japanese design studios. Nakamura cites as influences the Japanese market March Micra and our very own Nissan Murano (the Leaf’s designer also penned the Murano).From our American eyes, we see a bit of Honda Fit in the shape of the front end, but concur that from most other angles, Nissan’s design DNA is readily apparent. The shape of the greenhouse, from the fast angle of the windshield to the kink of the C-pillar does bring to mind the Murano. The belt line and some surfacing appear lifted from the March Micra, while the profile, proportions and overall size recall Versa, except when you get to the notchback bustle in the back, which is reminiscent of Nissan’s corporate cousin, the Renault Megane.Nakamura agrees with this assessment but states that any similarity with the Megane is purely coincidental.”It has no connection with Renault. We are always careful to not look like Renault. Sometimes it is ok, because we are partners…if you point to one detail, ok, maybe. But as long as the total car looks like a Nissan, that is ok.” As you get closer, a number of interesting details emerge, most notably the strange bulge to the headlights at their inside edge. These and other features exist for aerodynamic reasons — a chief concern of Nakamura’s styling team.”Aerodynamics is very, very important for two reasons — air drag and wind noise control. When driving 120 kph (roughly 75 mph), you can only hear the tires and wind, there is no engine noise.  If you have lots of wind noise, it sounds even greater because .”So his team developed the bulging headlamps, conceivably to break up and channel the flow of air before it meets the seam of windshield and creates noise. They also paid particular attention to the shape and orientation of the side mirrors, to reduce wind nose from the side.So were they successful in reducing drag and noise?  Nakamura thinks so. “I can not say Cd (coefficient of drag) but it is very good — without making it the typical one motion aeroform,” he says during an interview prior to the Leaf’s reveal, alluding to the prosaic shape of both the Toyota Prius and Honda Insight that has become synonymous with low drag. “This is our own expression. But at the same time it doesn’t compromise.”Indeed, Nissan did not skimp on the features for the Leaf; there is a lot of high technology built in, from the optional roof mounted solar panel (said to help power accessory fans) and rear back up camera. Look down and you’ll notice the complete absence of a tailpipe. Between those awkward headlights is another signature EV feature. Where the hood meets the front bumper, is a panel surrounding the circular Nissan logo which flips up to reveal the charging ports. Though we don’t know what direction Nissan plans to take with future EVs, you can expect to find this bit of hardware in the Leaf’s siblings (until wireless non contact charging comes to fruition).Inside, it really becomes obvious that this is not your average hatchback.  The center stack is dominated by a large, bright multi information touchscreen, necessary to interact with Nissan’s EV-IT system (which provides EV range and recharging information as well as navigation, climate, and audio control). A futuristic looking semi-spherical transmission controller rests on the center console, and twists to offer (R)everse, (N)eutral, and (D)rive slots, as well as a button for (P)ark.  Honda styling cues resurface in the split instrument panel — a lower housing features another large, bright display, while a secondary hood above shows speed and other information. As far as comfort and roo
miness goes, Nakamura says his team benchmarked the entire C-segment for both interior and exterior dimensions, so the Leaf should be competitive. We did not get a chance to sit in the vehicle, but noted what looked like ample headroom, decent legroom both front and rear, and a huge trunk not often associated with vehicles that run on batteries.Of course, at this point, some of you might be wondering what the fuss is about. And it’s true. For all of the buildup and anticipation, the Leaf is unlikely to turn many heads when it hits the streets in select markets in late 2010.  Even when dressed up in brilliant blue green paint, there is no disguising the rather pedestrian proportions of this compact, traditionally shaped C-segment hatchback. There is some method to this plainness as, Nakamura explains.”We don’t want to go too far out of the segment. We are expecting a big volume . We want to maintain some mainstream feeling.”  Some but not all. “On the interior, we want to give more of a high tech feeling — unique, but not strange.  One that people can appreciate as real car.”This point is of particular importance to Nakamura’s team, as he specifically wanted to avoid the negative connotations associated with electric vehicles.”There is a perception in some markets that EVs are toys or cheap. Like a golf cart or city car. Maybe they can’t drive at high speed…they are not a real car. We did not want to create a car that is toy like or cheap looking. Ours is a real car. It can go 140 kph (87 mph) and can seat 4-5 people.”If you like the way the Leaf looks, take comfort in the fact that this is very close to a production ready vehicle — as much as 95% according to Nakamura. The specific paint scheme you see here will not be offered, though a shade similar and more durable will be along with a standard palette of customer friendly colors. A few of the surfaces and materials may change on the inside, but the Leaf as you see it now should be very close to what zips quietly past you starting in late next year.While other manufacturers have tied their fortunes to hybrid vehicles and clean diesels, Nissan has been relatively quiet on the low emissions front. With their new EV offering, Nissan is prepared to make a very large noise, as it clearly intends to be the leader in zero emissions vehicle leader. Whether the noise Nissan’s zero emissions program makes is a boom or a whimper bust depends entirely on the success of a car it calls the Leaf.INITIAL SPECS FOR THE NISSAN LEAF:Dimensions    Length:            4445 mm / 175.0 in.Width:                1770 mm / 69.7 in.Height    :            1550 mm / 61.0 in.Wheelbase:            2700 mm / 106.3 in.Performance    Driving range    over:        160km/100miles (US LA4 mode)Max speed (km/h):        over 140km/h (over 87 mph)Motor    Type:                AC motorMax power (kW):        80kWMax torque (Nm):        280NmBattery    Type:                laminated lithium-ion batteryTotal capacity (kWh):    24Power output (kW):        over 90Energy density (Wh/kg):    140Power density (kW/kg):    2.5Number of modules:    48Charging times:    quick charger DC 50kW (0 to 80%): less than 30 min; home-use AC200V charger: less than 8 hrsBattery layout:        Under seat & floorOFFICIAL NISSAN PRESS RELEASE:NISSAN UNVEILS “LEAF” – THE WORLD’S FIRST ELECTRIC CAR DESIGNED FOR AFFORDABILITY AND REAL-WORLD REQUIREMENTS Event ushers in a new era for Nissan and a new era for mobility YOKOHAMA, (Aug. 2, 2009) – Nissan Motor Co. Ltd. today unveiled Nissan LEAF, the world’s first affordable, zero-emission car.  Designed specifically for a lithium-ion battery-powered chassis, Nissan LEAF is a medium-size hatchback that comfortably seats five adults and has a range of more than 160km (100 miles) to satisfy real-world consumer requirements. NISSAN LEAFSlated for launch in late 2010 in Japan, the United States, and Europe, Nissan LEAF ushers in a new era of mobility – the zero-emission era.  The car is the embodiment of Nissan’s radical, transformative vision for the future and the culmination of decades of investment and research.  “Nissan LEAF is a tremendous accomplishment – one in which all Nissan employees can take great pride,” said Nissan President and CEO Carlos Ghosn.  “We have been working tirelessly to make this day a reality – the unveiling of a real-world car that has zero – not simply reduced – emissions.  It’s the first step in what is sure to be an exciting journey – for people all over the world, for Nissan and for the industry.”Key characteristics of the LEAF include:1) Zero-emission power train and platform2) Affordable pricing3) Distinctive design4) Real-world range autonomy – 160km (100 miles)5) Connected Mobility: Advanced intelligent transportation (IT) systemThe “LEAF” name is a significant statement about the car itself.  Just as leaves purify the air in nature, so Nissan LEAF purifies mobility by taking emissions out of the driving experience.  Pricing details will be announced closer to start of sales in late 2010; however, the company expects the car to be competitively priced in the range of a well-equipped C-segment vehicle.  Additionally, Nissan LEAF is expected to qualify for an array of significant local, regional and national tax breaks and incentives in markets around the world.  As an added benefit, because the vehicle has less mechanical complexity than a traditional gasoline-powered car, Nissan LEAF is designed to be friendly to the wallet as well as to the environment.ZERO-EMISSION MOBILITYNissan LEAF is powered by laminated compact lithium-ion batteries, which generate power output of over 90kW, while its electric motor delivers 80kW/280Nm.  This ensures a highly responsive, fun-to-drive experience that is in keeping with what consumers have come to expect from traditional, gasoline-powered automobiles.Unlike internal-combustion engine (ICE) equipped vehicles, Nissan LEAF’s power train has no tail pipe, and thus no emission of CO2 or other greenhouse gases.  A combination of Nissan LEAF’s regenerative braking system and innovative lithium-ion battery packs enables the car to deliver a driving range of more than 160km (100 miles) on one full charge*.  (*US LA4 mode)Extensive consumer research demonstrates that this range satisfies the daily driving requirements of more than 70% of the world’s consumers who drive cars.And, Nissan’s approach makes charging easy and convenient.  Nissan LEAF can be charged up to 80% of its full capacity in just under 30 minutes with a quick charger.  Charging at home through a 200V outlet is estimated to take approximately eight hours – ample time to enable an overnight refresh for consumer and car alike.REAL-WORLD CAR The engineers and designers behind Nissan LEAF worked to create a competitively priced real-world car that would enable Nissan to lead mobility into the zero-emission era.  To ensure comfort, spaciousness and cargo capacity, Nissan LEAF employs a completely new chassis and body layout.”Our car had to be the world’s first, medium-size, practical EV that
motorists could afford and would want to use every day. And that’s what we’ve created. The styling will identify not only Nissan LEAF but also the owner as a participant in the new era of zero-emission mobility,” said Masato INOUE, Product Chief Designer.DISTINCTIVE DESIGNEven the smallest details can yield tremendous effect.Nissan LEAF’s frontal styling is characterized by a sharp, upright V-shaped design featuring long, up-slanting light-emitting diode (LED) headlights that employ a blue internal reflective design that announces, “This car is special.”  But the headlights do more than make a statement.  They are also designed to cleverly split and redirect airflow away from the door mirrors, thus reducing wind noise and drag.  And, the headlights provide yet one more benefit in that they consume just 10 percent of the electricity of conventional lamps, which helps Nissan LEAF to achieve its world-class range autonomy.Through bright trim colors inside, Nissan LEAF creates a pleasing and stylish cabin environment.  An environmentally friendly “blue earth” color theme originates from the Aqua Globe body color of Nissan LEAF’s introductory model.  This theme is carried into the interior through blue dashboard highlights and instrument illumination.CONNECTED MOBILITY IT SYSTEMNissan LEAF employs an exclusive advanced IT system.  Connected to a global data center, the system can provide support, information, and entertainment for drivers 24 hours a day.  The dash-mounted monitor displays Nissan LEAF’s remaining power – or “reachable area” – in addition to showing a selection of nearby charging stations.Another state-of-the-art feature is the ability to use mobile phones to turn on air-conditioning and set charging functions – even when Nissan LEAF is powered down.  An on-board remote-controlled timer can also be pre-programmed to recharge batteries. “The IT system is a critical advantage,” says Tooru ABE, Chief Product Specialist. “We wanted this vehicle to be a partner for the driver and an enhancement for the passengers.  We also wanted this vehicle to help create a zero-emission community, and these IT features will help make that possible.”HOLISTIC APPROACH TO ZERO-EMISSION MOBILITY AND ECO-FRIENDLY INNOVATIONNissan LEAF is a critical first step in establishing the era of zero-emission mobility; however, Nissan recognizes that internal-combustion engine (ICE) technologies will play a vital role in global transportation for decades to come.  Because of this, Nissan is implementing its zero-emission vision through a holistic approach, which provides consumers a comprehensive range of eco-friendly technologies from which to choose.For some consumers, Nissan LEAF will be the perfect match, and the only car they will ever need.  For others, Nissan LEAF will be a logical addition to the family fleet – the optimal choice for the daily commute, for example.While zero-emission is the ultimate goal, the company is committed to ongoing innovation in eco-friendly technologies that increase efficiency and reduce emissions.  As a result, Nissan offers a comprehensive suite of automotive technologies, including CVT, Idle Stop, HEV, Clean Diesel, and ongoing research and investment in FCV technology.WORLDWIDE PARTNERSZero-emission mobility programs under the banner of the Renault-Nissan Alliance include partnerships with countries such as the UK and Portugal, local governments in the Japan and the USA, and other sectors, for a total of nearly 30 partnerships worldwide.In these partnerships major efforts focus on three areas:      1) Development of a comprehensive charging infrastructure through public and private investment,     2) Incentives and subsidies from local, regional, and national governments, and     3) Public education on the individual and societal benefits of zero-emissions mobility.ZERO-EMISSION VEHICLE PRODUCTIONNissan LEAF is the first in the company’s forthcoming line of EVs and is a major milestone in the realization of the Renault-Nissan Alliance’s vision for zero-emission mobility.  The first of Nissan’s EVs will be manufactured at Oppama, Japan, with additional capacity planned for Smyrna, Tennessee, USA.  Meanwhile, lithium-ion batteries are being produced in Zama, Japan, with additional capacity planned for the USA, the UK and Portugal, and other sites for investment are under study around the world.
Source : blogs.motortrend.com/6537775/green/zero-emissions-all-green-introducing-the-nissan-leaf-ev/index.html

Driving the Future: Nissan’s All New Electric Vehicle

Since April, we’ve been continually updating you on the progress of Nissan’s electric vehicle (EV) program with up to the minute news bulletins like this one.And this one.This one over here.And, yup, this one. Well today, Nissan essentially stuffed all of this information into one giant EV gyoza and reheated it for us at the automaker’s Advanced Technology Briefing at the Oppama Grandrive test track in Yokosuka, Japan.Was it fresh? Admittedly, no. None of what we saw today was groundbreaking stuff, but it certainly was nutritious — especially once we chewed on it for a while and digested all the details.The real purpose of this heaping helping of electrifying info is to build a buzz about Nissan’s latest EV — which happens to be making its debut this Sunday at the company’s new headquarters in Yokohama. Unlike previous concept vehicles and test mules, Nissan’s newest EV will not be a Frankenstein’d mashup of an existing platform and all electric power train. This as yet unnamed EV will be based on an all new, purpose built front wheel drive platform with a plug-in rechargeable electric motor up front and batteries slung low under the belly of the car.Nissan is not using cylindrical cell type batteries like many other electric and hybrid vehicle manufacturers opting instead for flat lithium ion (LiOn) laminate cells that look a bit like giant Pop Tarts. These batteries, developed in partnership with Japanese electronics manufacturer NEC, uses manganese as the positive electrode, instead of metals like nickel or cobalt. Manganese is relatively inexpensive and abundant in comparison to those other metals, and when oriented in Nissan/NEC’s special spinel structure (think Lego blocks) versus the standard sandwich orientation, the result is a battery that Nissan claims is more stable, reliable, and cost efficient than the competition’s. The flat shape and large surface area of the batteries  also makes for easier packaging (in stacks) and cooling. It also means the batteries use fewer components than cylindrical type cells, which also keeps cost down. In Nissan’s EV program, these laminate cells, about the size and thickness of a magazine are stacked four to a module. Forty-eight modules and a management system, packaged as a single lumpy unit and enclosed in a metal frame, comprise the EV’s battery pack. The idea here is that this battery pack could then be bolted up into an EV on an assembly line – as car makers do with various subassemblies. Supplying these battery packs is Automotive Energy Supply Corporation (AESC), a company co-developed by Nissan and Renault. The battery pack slots in underneath the car, between the wheels, where you would traditionally find a driveshaft or exhaust pipes running the length of the vehicle. Some of the modules in the pack are stacked horizontally and vertically to create the base for the front and rear seats in this 5 passenger car. Others lie flat in the battery pack and compose rear seat foot well. Nissan calls the arrangement high-low-high. Though heavy (each of the 48 modules weighs roughly 7.7 lbs), the battery pack’s ground hugging orientation should provide for a low center of gravity and good handling.So will the 80KW electric motor that sits up front in the chassis. While the inverter sits relatively high in the engine bay – about the normal height of an internal combustion engine’s cylinder head – to facilitate access to the charging ports, the electric motor sits very low, between the front wheels and far beneath the strut towers – about where you’d expect to find the oil pan of a traditional engine.Overall, Nissan’s layout is impressive because of its elegance and simplicity. EV powertrain aside, the cutaway model reveals what is essentially a blank canvas.  With the front engine/front wheel drive configuration and all of the batteries low and out of the way, the cargo and passenger area looked like they could be configured in number of ways, without sacrifices to either. Almost any type of body style could be designed on top this platform as well.  And theoretically, you could even make this a rear or all wheel drive vehicle by beefing up the rear suspension and stuffing another electric motor in the back, low and behind the battery pack. Such speculation is all fine and good, but how does it drive?Quite well actually. We had but the briefest taste of the EV’s performance – one lap around the Grandrive test track in a Versa-based test mule – but it made a compelling case.Acceleration is surprisingly brisk; the 80 kW electric motor doles out all of its 207 lb ft of torque in less than 100 milleseconds once you hit the throttle, providing the sensation of instant response. Nissan engineers claim it accelerates better than an Infiniti G35 by leaving the line quicker and getting up to speed more smoothly. Its top speed of only 87 mph is quite a bit off the pace of the G. On the other hand, it’s much quieter than that car or any for that matter. The electric motor and single speed gearbox mean it’s nothing but quiet thrust when you put your foot down. The only sounds come from the tires as they hum over the pavement and the greenhouse as the wind rushes over and across it. As for the rest of the ride, well, Nissan’s EV mule drives pretty much like a standard issue Versa.  Shrunken joystick shifter and tab style parking brake lever aside, the rest of this test mule’s controls feel the same as a standard Versa. Same goes for the ride and handling; the cars pushes back if you ask it to corner too fast, but it does feel more planted and less tippy as it turns. Perhaps the battery placement providing the extra stability.With a range of 100 miles on a full charge, Nissan claims its EV will suit the average commuting needs of approximately 80% of Americans. What happens when the battery runs down?  Well Nissan has clearly thought a lot about that as well; they not only have a plan for how you can charge the car at your house at night, but how you’ll manage during a
busy workweek or weekend.Nissan’s EV battery pack can be charged in a number of ways.  A home recharging kit allows you to power up the EV from standard 110V or 220V outlets. Simply connect an SAE standardized pistol-like charger to the port at the nose of the car and wait. Charge times at 110V are claimed to be approximately 8 hours; half that for 220V.  Nissan has also developed special three phase, 200V quick charging stations can deliver 80% battery charge in 30 minutes – though it requires a larger, specially shaped charger and receiver port.To reduce any anxiety associated with the limited 100 mile range and long recharging times, Nissan has also given its EV a special monitoring system they call EV-IT. This system monitors the battery level and provides range information on a navigation screen, so users will never have to wonder how far they can go or where they can juice up.  Nissan claims EV-IT will also provide a whole host of smart features to the EV driving experience and set up an animated clip to showcase what living with its EV might be like:You wake up to find an email on your smartphone from your Nissan EV providing a update on the battery charge – a benefit of the networked EV-IT system. Assuming you’ve had it plugged in for 8hours at 110V or 4 hours at 220V, your car should be fully charged. At this point, you can remotely turn the A/C on (and in the future, and engine oil warmer) to get the car up to suitable operating temperature while it is still plugged in.  This conserves energy for your morning commute.While you recoup some of the power on the way to work via regenerative braking, the bulk of recharging takes place at work – via the 110V/220V system, or a quick charger. After a long day of work, you pull into your garage, click her off and plug her in. But you don’t start charging right away. Via your smartphone, you program a start time for the charging cycle; late in the night when demand and electricity rates are lowest. For longer weekend trips, EV-IT will help you plan your route, by keeping up to date on your remaining battery power and driving range and locating charging stations nearby. In Nissan’s future, shopping centers and restaurants along your route will have quick charging stations, so you can continually keep your EV’s batteries charged with minimal disruption to your journey. Further off are plans for non contact charging via electromagnetic induction. Imagine being able to top off your car’s batteries by simply pulling your EV over a special recharging pad built into the ground. Whether you’re parked for hours at the local mega mall or for just a minute at a red light, the battery charge goes up.Sound too good to be true? Perhaps. This Sunday, (Saturday for America), Nissan will unveil the first step towards this future, when it reveals its as yet unnamed, zero emissions electric vehicle at its new headquarters in Yokohama.  We’ll be there for a complete update, so stay tuned. 
Source : blogs.motortrend.com/6564081/green/driving-the-future-nissans-all-new-electric-vehicle/index.html

Coolest, Classiest Electric? Mercedes SLS AMG eDrive

While at the Nurburgring for a first-ever drive of the coming 2010 Mercedes-Benz SLS AMG Gullwing, I also had the opportunity to sit down with Volker Mornhinweg as the AMG CEO showed-off some highlights of his next new vehicular baby: an all-electric version of the Gullwing.

The eDrive version, says Mornhinweg, “will use exactly the same white body as the gasoline-powered car. There’s plenty of room in the existing structure to put electric motors at each wheel and batteries on the floor, ahead of the firewall, and just aft of the seats. The only change is up front, where we’ll have to change the front axle to a pushrod suspension to accommodate the motors.”

Mornhinweg is clearly excited about the eDrive project. “This is not a concept car. The SLS eDrive will be on the road perhaps as early as 2013—certainly by 2015 at the latest.” As such, it’ll be a continuation of AMG’s goal to reduce fleet-average C02 emissions by 30 percent by 2012. “The challenge for the future is to deliver superb performance, but also social acceptance,” says Mornhinweg. “The internal-combustion engine is going to be around for a long, long time, but to improve its efficiency we’ll be using more and more direct injection, downsizing displacement while adding turbocharging, incorporating stop/start systems, and more. You’ll see more four-cylinder engines in the future, too.”

The AMG boss sees myriad benefits to the SLS eDrive. “The SLS’s lightweight aluminum body and structure will help to offset the heavy batteries we’ll need for maximum performance.” Zero to 60 mph, Mornhinweg adds, will take around 4 seconds flat, with a top speed of about 125 mph. Because each wheel will be driven by its own motor, electric four-wheel drive is inherently part of the design. “By tailoring the software that guides the motors, we can also do exciting things like torque vectoring and dynamic stability control,” Mornhinweg says.

The three modular high-voltage batteries in the SLS eDrive will be lithium ion—powering the four electric motors through two transmissions (one per axle). Peak output is equivalent to 526 horsepower (392 kW) and nearly 650 pound-feet of torque—the eDrive should be a formidable player in stoplight Grands Prix. Range won’t be outstanding—only about 95 to 110 miles—but the batteries will recharge to 80 percent of capacity in around five to six hours (plug in when you reach work if you have a long commute home). Plugging-in overnight will deliver a full charge. (Regen brakes, of course, will help to freshen the batteries when driving.)

Mornhinweg is confident that no major hurdles exist in bringing the eDrive to market. And he emphasizes that the eDrive will not replace the SLS’s 6.2-liter gasoline V-8; the two versions will coexist. “Our biggest challenge,” he notes, ”will be adding the emotion that’s so crucial to the enjoyment of a sports car. For instance, with electric drive there’s no vroom vroom during downshifts, which is a sound every enthusiast driver enjoys. So we’re experimenting with various ways simulate the experience using the two transmissions and the electric motors. I’m confident, though, that when we’re finished we’ll have what many enthusiasts will find a very desirable car.”

Which is to say, with its speed, those show-stopping gullwing doors, and that zero-emissions powertrain underneath, the SLS AMG eDrive promises to offer driving sex without the guilt.

Source : blogs.motortrend.com/6563064/editorial/coolest-classiest-electric-mercedes-sls-amg-edrive/index.html