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July 2015
Press kit
www.greengt.com
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The Company p. 3The Founders p. 4GreenGT H2 p. 5GreenGT H2 (image) p. 6GreenGT H2 – Technical Data Sheet p. 7-8The Fuel Cell p. 9GreenGT H2 - Innovations p.10GreenGT H2 – Strong Points p.11-12Achievements – GreenGT 200kW p.13Achievements – Citroen Survolt p.14Achievements – GreenGT 300kW p.15Achievements – Swatch / Belenos p.16Achievements – Windreich E p.17Available images p.18Press contact p.19
Contents
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Innovative high performance vehiclesGreenGT is an independent company that designs, develops and markets clean and sustainable vehicle propulsion systems, with a focus on competition and innovation. At the Service of tomorrow’s VehiclesGreenGT’s ambition is to offer its know-how to all active players of powered mobility by: • providing advice and support for the integration of innovative solutions; • supplying high-power electric drivetrains; • constructing environmentally clean concept cars and competition vehicles.
Bringing Skills TogetherOur team was formed in April 2008, under the leadership of Jean-François Weber, who had formerly been involved for many years in car racing and the Le Mans 24 Hours event. In particular, in 2005, he developed an electric propulsion system designed for competition cars.With the same enthusiasm, he now leads this great adventure working together with his team mates: Christopher Schwartz, a specialist in fuel cells, and two authentically visionary automobile enthusiasts, Stanislas de Sadeleer and Christophe Ricard.
InfrastructuresGreenGT has its own infrastructures in Switzerland, in the Lausanne region, as well as in the French Department of Var, adjoining Le Castellet Circuit. These resources enable it to put to the test, very quickly, in a practical context the innovative solutions developed by its engineering research staff.
The Company
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The FoundersJean-François WeberGeneral Manager, Head of R & D - One of GreenGT’s three founders. EPFL Mechanical Engineer,HEC Graduate. After 15 years in strategy consulting and communications at PWC, he has taken over the management of Mader Racing on behalf of Mecachrome.
Christophe SchwartzFounding Partner - One of GreenGT’s three founders. EPFL Microtechnology Engineer. A specialist in engineering, production and project management for the automotive industry since 1992. He has been active in the renewable energy field since 2001.
Stanislas de SadeleerFounding Partner - One of GreenGT’s three founders. A company director and investor in high-tech business ventures, particularly in the field of motor racing. After active involvement in skiing at world level, he later participated in the most important motorsport classics (Spa 24 Hours, Daytona,Le Mans Classic 24 Hours, Tour Auto ...)
Jean-Michel BourescheCommercial & Racing Manager - Founder of JMB Racing in 1995. Fourteen international titles won, including three World Cups in endurance, a world title in FIA GT and another in the Le Mans Series.
Christophe RicardMajor Shareholder - Joined GreenGT in 2010. From 1995 to 2009, he was Chairman & CEO of OMPharma, Geneva (biotech). MBA and Marketing & Advertising graduate (USC/Columbia).A former competition driver in Formula Ford (France Championship, Eurocup, Festival) and endurance (FIASportscar, LMES), he is now an investor in innovative high-tech business ventures.
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The GreenGT H2 is the first prototype electric/hydrogen competition car.
The story began in 2009, when GreenGT first built a prototype electric competition car, the GreenGT 300kW, 100% powered by lithium/ion batteries.
As autonomy soon proved to be the feature of the 300kW with most scope for improvement, GreenGT decided to use a 100kW hydrogen fuel cell to provide the additional energy needed for the electric motors.
This 100kW fuel cell was then tested and the expected results were confirmed. Based on this work, development of a new chassis and a new more powerful, but far more compact fuel cell (with a linear power of 340kW or 460Hp) was started by GreenGT in 2012.
In June 2012, the GreenGT H2 project was selected as an innovative project by the French Automobile Club de l’Ouest (ACO) and invited to participate in the 2013 Le Mans 24 Hours event.
In parallel, a new lightweight twin-engine powertrain, with a power of 400kW or 540Hp, was developed for the H2 prototype. Control electronics and telemetry of the latest generation designed and constructed specifically for the GreenGT H2 ensure the very best on-track performance.
The electrical/hydrogen technology used on the GreenGT H2, conceived as a demonstration model, will be applicable to other vehicles needing high power, trucks and other industrial vehicles.
GreenGT H2
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GreenGT H2 – Technical Data Sheet
Engine Type 2 experimental three-phases permanent magnet synchronous Brusa motors. Power 2 x 200 kW, or 544 Hp DIN. RPM: 13.500 rev/min max. Couple 4.000 Nm to the wheels.
Transmission Mode Direct drive without clutch to the rear wheels. Type Patented electronic torque vectoring differential gearbox.
Fuel Cell Type 18 stacks with a linear power of 340kW. Experimental “high temperature” membrane. Optimized assembly with specific aviation-type lightweight elements. Elements optimized for a minimum target of 500 hours. Operation of the fuel cell without a buffer battery. Electronic control system specially designed for battery-free operation.
Air Supply Two electric chargers. Fuel Cell weight 320 kg
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Hydrogen tanks 2 x 160 litre tanks made of carbon fibre and aluminium. Quantity of hydrogen stored: about 4kg per tank (equivalent to 25 litres of petrol/gasoline), with an autonomy of about 40 minutes. 350 bar high-pressure tanks with a built-in pressure reducer FIA approved. Chassis Body Double-body and crash box, made of carbon fiber composite, FIA approved Bodywork Made of carbon fiber composite Suspensions Double steel wishbone and push rods front and rear Brakes Brembo calipers with carbon discs and pads Wheels BBS, front 11x18, rear 13x18 Dimensions Lengh/Width/Height: 4950 x 2000 x 1200 mm
Electronics “Torque vectoring” managed by a fully integrated module, based on racing type on-board CPU Maximum Speed 300 km/hWeight 1240 kg
GreenGT H2 – Technical Data Sheet
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Fuel CellThe fuel cell contains neither batteries nor fuel ... It is in fact an electrical generator fed with hydrogen and air that discharges only water.
The principle of the fuel cell is a chemical reaction that is the reverse of electrolysis of water. It produces electricity, water and heat through oxidation by bringing together different gases (hydrogen and oxygen).
The operating temperature ranges from 60 to 120°C depending on the model.The water is discharged as steam.
Possible scope for improvement of fuel cells concerns their weight, complexity and cost.
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GreenGT, whose specificity lies in its role as an integrator, offers an innovative solution through the power density and endurance of its powertrains. Our approach, dictated by the constraints of competition, requires us to deliver efficient and reliable products against short delivery lead times.
Innovations developed for the GreenGT H2 prototype:
1. Powertrain with a differential torque function. 2. Powertrain incorporating a twin engine and electric converters. 3. Specific lubrication for an electric gearbox designed for low operating temperatures. 4. Centralized control of electronics and high power currents. 5. Fuel cell: air loop without humidifier. 6. Piloting of the fuel cell air supply by electric turbochargers. 7. Integration of the hydrogen supply system, including pressure reduction, filling, thermal and mechanical safety functions; retractable with its removable hydrogen tank. 8. Thermal control of the fuel cell. 9. Operating mode and control algorithms for power of engine and fuel cell without a buffer battery. 10. Specific instrumentation and dashboard for electric vehicles. 11. Analysis of failure modes and development of safety countermeasures for electric vehicles. 12. Separate control of electricity supply for power and command functions. 13. Safe integration of electric power components. 14. Wiring, switches and connectors specific to high power electric vehicles (> 400A and 400V). 15. Safe Kevlar-Nomex housing for electric power components: protection of occupants and service personnel.
GreenGT H2 - Innovations
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« A clean and efficient energy solution »
FeasibilityThe first car to break the 100km/h record in 1899 − the «Jamais Contente» − was electric! The fuel cell itself was invented in 1839, but it was actually constructed for the first time 120 years later! After playing its part in the conquest of space, the fuel cell will now be incorporated in cars. Today, advances in technology have made these solutions workable.
DevelopmentThe development of the GreenGT H2 prototype and its approval have cost about 5 million Euros. With this investment, GreenGT is pursuing a twofold objective: to point the way to the future of the electric/hydrogen motor and to benefit from experience for the series production of high power powertrains. Car makers and petrochemical, gas and electricity distributors are all currently building new technical and more economic models. So this is an area with high growth potential thanks to the rapid improvements in manufacturing processes and materials, particularly polymers and metals.
Energy IndependenceEcological consequences, diminishing reserves and energy dependence are all problems associated with fossil fuels. Hydrogen, instead, can be produced simply from water using solar panels, an electrolyzer and a compressor. Hydrogen is therefore a truly independent, economic and ecological energy solution for most countries.
GreenGT H2 - Strong Points
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« A clean and efficient energy solution »
No pollutant: There are no emissions of gas or CO2 or NOx or any other pollutants during the operation of an electric/hydrogen motor.
Renewable energy: The hydrogen comes from the electrolysis of water. The water is recomposed when electricity is generated in the fuel cell. This water can then be used again to re-create hydrogen.
Clean production of hydrogen: Hydrogen can be produced perfectly using wind or solar energy.
« A clean and efficient energy solution »
Reliability: Electric motors have 5 times fewer parts than thermal energy engines and are therefore much more reliable.
Safety: Hydrogen is less flammable than petrol/gasoline. The tanks on GreenGT’s H2 are 3 times stronger than the petrol/gasoline tanks on FIA approved prototypes.
GreenGT H2 - Strong Points
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GreenGT 200kW (2009)
Specifications• Chassis: CN FIA 2008 approved carbon composite• Bodywork: fibreglass composite• Suspensions: specific 4.42 wishbones and combined spring-dampers • Brakes: Aluminium calipers, Brembo ventilated steel discs• Wheels: Magnesium rims, slick tyres• Engines: 2 synchronous three-phase motors providing 2x100kW linear power• Transmission: GreenGT patented differential box • Electronics: Specific control module for GreenGT racing electric propulsion • Power supply: Flexcell slim solar panels for 12-volt network • 2 x 25kWh Lithium-Ion-Polymer packs• DC/AC converters made in Switzerland• Performance: 0-100km/h in under 4.9 sec. • Equivalent to a 350 to 400 Hp thermal energy car• Weight: 920 kg.
Achievements
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Citroën Survolt (2010)
The Citroën Survolt is a superb style exercise created by Citroën’s design team and incorporating a GreenGT electric powertrain.
Constructed in less than three months, it did its first run at the Le Mans Classic in July 2010.
The battery packs have been equipped with GreenGT’s latest innovations: new type of cell, safe operation and optimized cooling.
Achievements
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GreenGT 300kW (2011)
Chassis : CN FIA homologated carbon/kevlar fiberBody : Glass fiberSuspensions : Specific wishbones and combined spring-dampersBrakes : Brembo aluminium calipers, ventilated discsWheels : Magnesium rims, slick tiresEngines : 2 three-phases synchonous motors providing 2 x 150 kW Transmission : GreenGT Patented differential boxElectronics : Specific control for electric propulsionPower Supply : Flexecell slim solar panels for 12V 2 Lithium-Ion-Polimer packs providing 31kWh, Cooling system: Non conductive liquidInverters: DC/AC made in SwitzerlandPerformances : 0-100 km/h in 4.7 seconds, V-MAX 285 km/h Equivalent to 410 to 450 Hp thermical engine car. +3600 Nm of torque at the wheel.Weight : 980 kgAutonomy: 300kW – from 12 to 17 min, 250kW from 15 to 20min, 200kW from 18 to 22mn on a track
Cette voiture a des performances proches de celles d’un prototype CN, Radical ou Norma.
Achievements
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Swatch / Belenos (2011)
Belenos is a company belonging to the Swiss watchmaker Swatch Group.It has been assigned the task of developing future energy supply concepts.
Belenos asked GreenGT to assist it in the choice and design of a small electric city car incorporating the hydrogen/oxygen fuel cell developed by the Paul Scherrer Institute.
This car, the EVL2, was built in the first half of 2011 and was presented by Belenos in August 2011.
Achievements
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Windreich E (2011)
Windreich, a German wind turbine parks operator, asked GreenGT to convert a Jaguar E-Type, for use in promoting its image in Germany.
The car uses a single-engine powertrain based on a 150kW electric motor, coupled to a gearbox with 2 specific ratios.
The GreenGT battery packs fit perfectly in the complex shapes of the Jaguar and are completely safe. This car has been approved for use on roads in Europe.
Achievements
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Some of the royalty free high and low definition images available in our Pressroom
Available images
greengt.com
GreenGT H2
Stack
GreenGT H2
Rear view
GreenGT H2
Wind tunnel
GreenGT H2
Carbon double body
