Nissan begins global proving tests for NV200 based electric vehicles

Japan Post - Nissan e-NV200 Test Car

YOKOHAMA, Japan : July 5, 2011 - Nissan Motor Co., Ltd. will begin global proving tests starting July 2011 of an electric vehicle (EV) based on the compact commercial vehicle NV200.


For the first phase, the Japan Post Service Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo, President and CEO: Shinichi Nabekura) will carry out a test in Japan starting July. One test vehicle will be provided to carry out postal collection and delivery tasks for approximately two months in the city of Yokohama, Kanagawa prefecture, to evaluate the vehicle's capabilities under a customer's normal usage conditions. Later, similar proving tests will be carried out both in Japan and Europe, where similar evaluations will be carried out with other companies.

Japan Post Service Co., Ltd's Test Car

"The role that can be played by zero emissions vehicles in promoting a balance between economic growth and environmental protection in the realm of logistics is large" said Nissan Corporate Vice President Hideto Murakami, responsible for the Global LCV Business Unit. "We will certainly reflect the customer feedback gained from these proving tests in our future product development, and I expect that our commercial electric vehicles based on the NV200 will contribute to our customers' business and to the development of a sustainable society."

The NV200 was recently chosen as the next generation New York taxi. It is a model aimed for customers around the world, the next-generation compact commercial vehicle suited for a wide variety of situations including business, daily use, or leisure. The NV200 is available in Japan and Europe since FY2009 and China and Singapore from FY2010, and future launches are planned for the U.S. and India. In total, the NV200 is sold in approximately 40 countries throughout the world, and has received positive feedback from customers for its spacious interior, fuel economy, excellent driving performance, and attractive design. At the end of 2009 it was awarded "International Van of the Year 2010" that was based on the selection of journalists from 20 European countries. In March 2011, it was awarded the "Universal Design Award," one of the most authoritative awards in universal design, and the "Universal Design Consumer's Favorite Award," marking the first time in automotive industry to be awarded both awards.

Nissan is aiming to become the leader in zero emissions, and in addition to carrying out the development of electric vehicles, Nissan is also engaged in comprehensive efforts to spread the use of electric vehicles and promote sustainable mobility. The Renault-Nissan Alliance has already concluded more than 90 partnerships related to zero emission mobility with national and local governments and corporations throughout the world (as of June 2011). Nissan is also engaged in related efforts such as the production of lithium ion batteries, developing charging infrastructure, the development of internal speed charging equipment, and the recycling and reuse of batteries.

[Source : NISSAN]

Bluebird Electric Team gear up for a new Land Speed Record

Bluebird Electric Team gear up for a new Land Speed Record

The weekend of 2/3 July 2011 will be a momentous occasion. Records are set to be broken and history made as Don Wales and the Bluebird Electric team endeavour to break the UK Land Speed Record on the 4-mile stretch of beach at Pendine Sands, South Wales.


The speed trial, part of the preparations for an attempt in 2013 to break 500mph, has been made possible thanks to an overwhelming response from volunteers who are generously giving up their time to help marshal and assist the 30-strong Bluebird Electric team.

This is not the first time a Bluebird has set Land Speed records at Pendine. Don Wales is following in a family tradition started by his grandfather, Sir Malcolm Campbell MBE and continued by his Uncle, Donald Campbell CBE.

If the public want to witness the feat first hand, the team welcomes spectators to cheer them along and show their support at Pendine Sands. The runs will commence from 1.00pm on Saturday 2nd July and 2.00pm on Sunday 3rd July 2011.

In addition to the record attempt, Bluebird Electric will be raising awareness for their chosen charities; Help for Heroes, Wessex Heartbeat and The Royal Brompton and Harefield Hospitals

Don Wales at Pendine Sands in June 2000

Don Wales and Bluebird Electric also extend their thanks to their sponsors Castrol, Aggreko, Ford, Goodyear, Dura, Bluestone and the Prince of Wales Hotel Pembrokeshire whose support and services have been invaluable throughout.

Sir Malcolm Campbell broke the speed record nine times in various Bluebird cars powered by both Napier and Rolls Royce engines. His records set at Pendine Sands were:

• 25 September 1924 -- 146.16 mph
• 21 July 1925 -- 150.766mph
• 4 February 1927 -- 174.88mph
• He achieved 301.12mph in 1935 on the Bonneville Salt Flats, Utah.
• His son, Donald, continued the record breaking tradition and broke the 400mph barrier in a turbine powered Bluebird.
• Don Wales, nephew of Donald, holds a World Land Speed Record, two American National Records and eight UK records.

[Source : NEWSPRESS]

Porsche 911 GT3 R Hybrid 2.0 : Test run under race conditions on the Nürburgring

2011 Porsche 911 GT3 R Hybrid

STUTTGART : April 28, 2011 - The development of the Porsche 911 GT3 R Hybrid 2.0 is running at full revs. This coming Saturday, the further-developed version of the innovative Hybrid race car contests round two of the Nürburgring Long Distance Championship (VLN). Another test under race conditions is planned at the fourth VLN round on 28 May.

At the race debut of the modified version of the 911 GT3 R Hybrid on 30th April, Porsche works drivers Joerg Bergmeister (Germany), Marco Holzer (Germany) and Patrick Long (USA) share driving duties in the orange and white ‘race lab’. At the second race meeting in late May, Holzer and Long join forces with Richard Lietz (Austria) to pilot the Hybrid-911.

Priority in the further development over winter was placed on increasing efficiency. For this, the weight of the vehicle, including the hybrid components, was reduced from 1,350 to 1,300 kilograms. The weight of these components was reduced by 20 percent through targeted optimisation. The general hybrid layout was adopted from the 2010 model.

The output of both electric motors in the portal axle increased from 60 to 75 kilowatts each. For seconds at a time, pilots now have about 200 hp more at their disposal with the 911 GT3 R Hybrid 2.0, which equals ca. 23 kW (32 hp) of additional conventional power per Nordschleife lap. Depending on the programming, this electrical power is automatically activated through use of the throttle pedal. Moreover, the hybrid pilots can manually call up this extra power, for instance when overtaking.

The electric flywheel accumulator, with its rotor spinning up to 40,000 rpm and storing energy mechanically as rotational energy, is now housed with the other hybrid components in a carbon-fibre safety cell on the passenger’s side.

With the portal axle driving the front wheels, the four-litre, now 465 hp six-cylinder boxer engine, which drives the rear axle, was reduced in power and optimised with respect to fuel consumption.

“We’ve made huge strides forward with the further-developed 911 GT3 R Hybrid. But testing under race conditions gives us additional information that is not easy to collect during a simulation,” says Hartmut Kristen, Head of Porsche Motorsport. “We’ll use the information gained from the VLN races to make our racing lab even more reliable and economical.”

Images : 2011 Porsche 911 GT3 R Hybrid

[Source : PORSCHE]

Audi A1 e-tron – electric driving in the city

Audi A1 e-tron

INGOLSTADT : March 2, 2010 - The new e-tron model series from Audi will gain another new member at the Geneva Motor Show: The Audi A1 e-tron is a Mega City Vehicle (MCV) with an innovative drive technology. It comes equipped with a powerful electric motor for zero-emission driving in the city. There is also an internal combustion engine on board that recharges the battery in exceptional circumstances. The A1 e-tron is very agile thanks to the 75 kW (102 hp) peak power of its electric motor.

The technology of the Audi A1 e-tron

The e-tron model family from Audi is just a few months old, but it already has a number of members, for each of which Audi has chosen a different drive technology. The first e-tron, which debuted at the 2009 IAA in Frankfurt/Main, is a near-series high-performance sports car with electric motors for all four wheels. The study shown at the Detroit Motor Show in 2010 is a lightweight, compact two-seater with two electric motors on the rear axle.

The A1 e-tron now presents another approach – a compact electric car in the premium class. The four-passenger, two-door MCV city car was designed specifically for use in the metropolitan areas of Europe and North America and in the rapidly growing megacities of Asia and South America. The Audi A1 e-tron always drives on electric power; its internal combustion engine is only used to recharge the battery in isolated cases.

The integration of the new technologies shows the holistic approach that Audi is pursuing with electric mobility. The objective is to use the energy with the lowest possible losses. The precise interaction of the components, their intelligent packaging, and the efficient management of the current flows are the product of the expertise that the company has developed in this area.

Audi has developed a proprietary thermal management system to keep the battery, the electric motor, and the power electronics within their respective ideal temperature windows.

Behind the three e-tron models is a broadly diverse and modular technology platform that continues to grow very rapidly as Audi drives development forward.

The electric motor: 75 kW (102 hp) peak power

The synchronous electric motor of the Audi A1 e-tron is mounted transversely at the front of the car. Its low mounting position has a positive effect on the vehicle’s center of gravity. Continuous output is rated at 45 kW (61 hp), with peak power of 75 kW (102 hp) available in short bursts. 150 Nm (110.63 lb-ft) of torque is continuously available, and peak torque is 240 Nm (177.01 lb-ft).

The electric motor sends its power to the front wheels via a single-speed transmission. The elegant, retractable selector lever on the console of the center tunnel used to choose between “Drive,” “Reverse,” and “Neutral” was taken from the first Audi e-tron.

The power electronics are mounted in the engine compartment above the electric motor. The most important components are the pulse-controlled inverter, which serves as the controller between the electric motor and the battery; the DC converter, which connects the high-voltage network with the 14 volt electrical system; a breaker unit to protect the high-voltage components; and the charging module. The socket for the standard charging plug is located behind the rings in the single-frame grille of the Audi A1 e-tron. A fully depleted battery can be recharged in approximately three hours from the 380 volt grid. A display immediately adjacent to the plug-in connection shows the current charge status and the charging time remaining.

The concept of the innovative Mega City Vehicle requires the electrification of key auxiliaries. The refrigerant compressor of the climate control system, for example, is electrically powered by a high-voltage electric motor that supplies only the amount of power needed at the time.

This increases system efficiency substantially compared to conventional concepts. Thanks to a special circuit, the climate control loop also functions as a heat pump that regulates the temperature of the cabin and the battery.

The power steering of the Audi A1 e-tron is electro-mechanical and thus particularly energy-efficient. An electronic brake system makes it possible to tap into the recuperation potential of the electric motors. A hydraulic fixed-caliper brake is mounted on the front axle, with two novel electrically-actuated floating-caliper brakes mounted on the rear axle. These floating calipers are actuated not by any mechanical or hydraulic transfer elements, but rather by wire (“brake by wire”). In addition, this eliminates frictional losses due to residual slip when the brakes are not being applied. In addition, the servo unit received a new, demand-controlled electric vacuum pump.

The large electric motor powering the A1 e-tron can convert braking energy into electric current and feed it back into the electrical system. The high degree of recuperation benefits overall efficiency. The electric control actions are imperceptible to the driver, who notices only the familiar, precise, and perfectly controllable pedal feel.

The battery pack: a compact T arranged below the floor

The energy storage unit is arranged below the floor, where it is ideal for the center of gravity and weight distribution. The battery pack is shaped like a T, with the short “transverse beam” filling the rear section of the center tunnel and the “cross-beam” filling that area in front of the rear axle where the fuel tank is otherwise located. The 380 volt lithium-ion rechargeable battery has a nominal energy content of 12 kilowatt hours. It comprises 96 prismatic cells and weighs less than 150 kilograms (330.69 lb).

The Audi A1 e-tron can drive 50 kilometers (31.07 miles) emission-free in city traffic on the powerful battery. On longer trips, the battery is recharged by a particularly compact internal combustion engine mounted below the luggage compartment.

Range Extender Generator Module

The range extender

The A1 e-tron concept car has a Wankel engine as a range extender, but other compact concepts are also possible. The small single-rotor Wankel has a chamber volume of 254 cc and runs at a constant 5,000 rpm in its peak efficiency window. The electronics also consider navigation data such as the destination and route profile to automatically activate the range extender as needed. The driver can also turn the range extender on and off as necessary with the push of a button The fuel tank holds 12 liters (3.17 US gallons).

The great strengths of the Wankel engine are the nearly vibration-free and quiet operation, the small dimensions, and the extremely low weight. Together with the generator, which is powered by the Wankel engine and produces 15 kW of electric power, the complete assembly weighs only around 70 kilograms (154.32 lb). This weight also includes the special power electronics, the intake, exhaust, and cooling unit, plus the insulation and the subframe.

Driving experience

The first defining impression that the driver of the Audi A1 e-tron gets is that of nearly total silence. Even the Wankel engine in the back can barely be heard when it is running.

The second characteristic perception is the power of the electric motor, nearly all of which is available instantly and thrusts the Audi A1 e-tron forward with authority. The innovative Mega City Vehicle, which despite its complex drive technology weighs only 1,190 kilograms (2,623.50 lb) delivers zero-emission driving fun in a modern and sophisticated manner. The vehicle accelerates from 0 to 100 km/h (62.14 mph) in 10.2 seconds and has a top speed of more than 130 km/h (80.78 mph).

The Audi A1 e-tron can also cover longer distances if the range extender charges the battery. The extra range, which is intended primarily for interurban driving, is 200 kilometers (124.27 miles).

According to the draft standard, the two different operating modes yield a fuel consumption of only 1.9 l/100 km (123.80 US mpg), which corresponds to CO₂ emissions of 45 g/km (72.42 g/mile). In electric mode, there are zero local CO₂ emissions - the compact A1 e-tron is thus ecological and economical.

The third impression that the A1 e-tron makes is that of a larger car. The compact two-door boasts all of the strengths of the new A1 model series – the carefully tuned, sporty chassis with specially designed 18 inch alloy wheels and 215/35 R18 tires; the generous, “grown-up” interior; the excellent fit and finish; and a multitude of high-end equipment.

The dark shade “ebony” dominates the interior. The seats – with stone gray seams – and the headliner are in “Alabaster White".

Design

The concept car in Geneva has a special “Aqua Mint, pearl effect” paint finish; the contrasting roof arch is offset in “High Gloss Steel dark.” As with the other two e-tron models, the 18-inch wheels with a 20-spoke turbine design convey the high-tech aspiration of the concept.

The rear diffuser with aluminum trim lacks tailpipes. This emphasizes the width of the vehicle and suggests the low emissions. The two front fenders are emblazoned with the “e-tron” logo.

The “Aqua Mint, pearl effect” exterior color carries over into the interior, where it adorns the door panels and the center console. The shift lever is a special leather-wrapped design; as is typical for the e-tron models, the start-stop button was placed in the front of the center console. A specially designed battery cover at the front of the car and the range extender engine with its cooling fins displayed under a sheet of glass in the luggage compartment also serve to visually underscore the clean technology of the A1 e-tron. And because an innovative drive concept also calls for innovative information management, the concept car features a freely programmable instrument cluster with a virtual display surface and innovative display and operating concept.

Images : Audi A1 e-Tron

[Source : AUDI]

The efficiency standard – the Audi A8 hybrid

Audi A8 Hybrid

INGOLSTADT : March 2, 2010 - Power like a big V6, fuel economy like a modest four-cylinder unit – Audi presents the A8 hybrid as a technology concept at the Geneva Motor Show. Its two propulsion units – a 2.0 TFSI and an electric motor – develop a total output of 180 kW (245 hp) of system power and 480 Nm (354.03 lb-ft) of torque. This enables the Audi A8 hybrid to accelerate in 7.6 seconds from zero to 100 km/h (62.14 mph) and to achieve a top speed of 235 km/h (146.02 mph). Yet its average fuel consumption amounts to only 6.2 liters (37.94 US mpg) per 100 km – the CO₂ equivalent is 144 grams per km (231.75 g/mile).

The technology of the Audi A8 hybrid

The combustion engine of the Audi A8 hybrid is the 2.0 TFSI – a high-tech powerplant. This four-cylinder unit, which has been named “Engine of the Year” five times in a row since 2005, is an example of Audi’s downsizing philosophy. It combines direct fuel injection with turbocharging and the AVS Audi valvelift system, which regulates the valve lift in two stages. In combination with the adjustable intake camshaft, the Audi valvelift system improves cylinder charging and ensures spontaneous and powerful torque build-up. The 2.0 TFSI delivers 155 kW (211 hp) and 350 Nm (258.15 lb-ft); the torque value remains constant from 1,500 to 4,200 rpm.

In the crankcase of the four-cylinder unit, which has a displacement of 1,984 cc, two balancer shafts offset second-order inertial forces to ensure virtually vibration-free and pleasantly quiet operation that goes well with the luxurious character of the A8. All components are optimized to minimize friction. The flow-rate-regulated, pressure-controlled oil pump further reduces fuel consumption.

Audi 2.0 TFSI Engine with the electric motor

Electric motor with ample propulsive power

A hydraulically operated wet clutch links the 2.0 TFSI with the electric motor. Its control requires the utmost precision, and a great deal of know-how has been expended to achieve its smooth, precise and swift operation. The synchronous motor, which is continually excited, also serves as a generator that develops 33 kW (45 hp) of power and 211 Nm (155.63 lb-ft) of torque. Its full power is available practically right from standstill and contributes to a sportily powerful start-up. Since an electric motor also develops heat, its housing is furnished with cooling ducts. Interposed between the electric motor and the wheelset of the eight-speed tiptronic, which is controlled entirely by electronics, is an additional cut-out clutch. In conjunction with the electric unit, this functions as a torque converter. The propulsive power of both drive systems is applied to the road through the front wheels.

Hi-Voltage Lithium-ion Battery Pack

Lithium-ion technology – the battery

The energy storage system of the Audi A8 hybrid is mounted in the rear section. This state-of-the-art lithium-ion battery is more compact and weighs less than other types but is substantially more powerful. It is protected by a high-strength housing, and a ventilation module ensures that it always operated within the ideal temperature range. Yet the A8 hybrid also provides ample luggage space of 400 liters (14.13 cubic feet)

Several subsystems that operate on engine power in a conventional car have been modified right from the start for use in the Audi A8 hybrid. The compressor in the climate control system runs entirely on electric power. The steering system is electromechanical as well. The brake booster too is supplied by a demand-controlled electric vacuum pump. During electrical – i.e. recuperative – braking actions, a sophisticated control system ensures that the ABS and ESP functions operate properly.

The power electronics unit manages the interaction of the systems. Its pulse control inverter regulates the interplay of the battery and the electric motor. The DC-DC converter supplies power to users on the onboard network. The power electronics unit, which is connected to the battery and the electric motor by high-voltage cables, is located in the engine compartment.

The smooth interaction of these components and their high level of integration attest to the specialized know-how Audi has accumulated. The technology architecture already provides a glimpse of a future production model – the Audi Q5 hybrid, which will be introduced later this year.

Driving experience

The Audi A8 hybrid, which weighs 1,885 kilograms (4,155.71 lb), drives as if it had a big six-cylinder gasoline engine or a TDI under its hood. From zero to 100 km/h (62.14 mph) the vehicle accelerates in 7.6 seconds, and it can continue to accelerate up to 235 km/h (146.02 mph). Yet its fuel consumption according to the EU cycle is only 6.2 liters per 100 km (37.94 mpg), corresponding to 144 grams CO₂/km (231.75 g/mile). In city traffic, the hybrid drive uses about 20 percent less fuel than a conventional drive. Both the car’s performance and its fuel economy benefit substantially from a major advantage of the A8 model series – its lightweight aluminum body based on the Audi Space Frame principle (ASF).

The hybrid drive is designed for fully electric-powered driving up to 65 km/h (40.39 mph) and for a distance exceeding two kilometers – especially well-suited for driving in the city or residential suburbs. When conditions permit, the driver can also select the electric mode by actuating a separate e-key in the cockpit. Both the display screen of the instrument cluster and the large monitor of the MMI operating system on the dashboard present all momentary power flows in brilliant graphics.

When the Audi A8 hybrid starts moving, both of its engines interoperate closely to suit varying power demands. Above 65 km/h (40.39 mph) the combustion engine alone does all the propulsive work, while the electric motor supplies onboard users and recharges the battery.

When the driver lets up on the gas, the combustion engine is disconnected from the drivetrain, so the Audi A8 hybrid ”sails”. In braking and slow-down phases, the e-motor functions as a generator – recuperating energy efficiently and feeding it into the battery.

When the driver floors the pedal, the engine management temporarily controls the entire system power, and now the electric motor is boosting power. 180 kW (245 hp) and 480 Nm (354.03 lb-ft) endow the big sedan with enormous thrust. The intermediate sprint from 60 to 120 km/h (37.28 to 74.56 mph) in fifth gear for instance is accomplished in 7.5 seconds. The Audi A8 hybrid is an extremely dynamic car – with a fuel efficiency that is setting new standards. This is especially true in everyday user activities. Even its looks betray the power of this near-production concept car with its big 21-inch wheels and their 265/35 tires. Efficiency and sportiness are no paradox at Audi – they go hand in hand.

The design of the Audi A8 hybrid

This near-production concept car has 21-inch, two-colour wheel rims styled with highly three-dimensional surface areas. The exterior paint job of the A8 hybrid is in “Prism Silver” with “Spectra Flair” as an accent color – a rainbow effect that’s accentuated in reflected light along creases and seams on the body. The prominently located “hybrid” lettering on both front fenders leaves no doubt about what kind of car this is. The accentuation of its width by a prominent low horizontal spoiler edge and a chrome strip conveys the vehicle’s solid stance on the road.

The engine compartment cover with its high-gloss finish and the glass cover of the battery in the trunk also provide visual links to hybrid technology. And the illuminated doorsteps bear the “hybrid” insignia as an elegant touch to underscore the electric aspect whenever the doors are opened – using LED technology to minimize energy consumption.

The passengers also see the prominent hybrid logo displayed on the dashboard. The "Powermeter" in addition shows the energy flow in the instrument cluster.

Images : Audi A8 Hybrid

[Source : AUDI]