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To infinity and beyond! 011003 HNi. Eco-Marathon Records: Eco-Marathon in a nutshell: The principle of the race is to use as little fuel as possible during.

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Presentation on theme: "To infinity and beyond! 011003 HNi. Eco-Marathon Records: Eco-Marathon in a nutshell: The principle of the race is to use as little fuel as possible during."— Presentation transcript:

1 To infinity and beyond! HNi

2 Eco-Marathon Records: Eco-Marathon in a nutshell: The principle of the race is to use as little fuel as possible during the race on a given distance to be covered within a given time according to the regulations. The results are given by measuring the fuel consumed during the attempt. The only fuels that may be used are commercial unleaded 98-octane fuel or - diesel. These fuels are supplied by the organizers. Fuel must be used alone with no additives; only the power produced in the engine by its combustion with air can be used for propulsion, with the exception of factors considered natural, such as wind and gradient. All intentional changes to the aerodynamic form of the vehicle during the race are prohibited Two Eco-Marathon competition classes: –Open class: General structural regulations –Basic class: General structural regulations + additional limitations: Materials of the carrying structures: steel, aluminium, plywood, wood, use of any fibre material is forbidden Bodywork (non carrying structure): glass fibre, wood, plastic, steel, aluminium, fabrics Engine: factory made origin,modification of factory made parts is allowed, electronic control systems with feedback are not allowed International competitions: (Nogaro (F), Bryssel (B), Rockingham (GB), Suzuka (J), Nokian Tyres Ltd test track (FIN)), over 600 competing teams all over the world Open class WR: 3962km/l Fancy Carol (J) Hiroshima (J), 2003 Basic class WR: 2204km/l BS Mileage Marathon (FIN) Nogaro (F), 2002 Diesel WR: 2572km/l Optima Racing (F) Nokian Tyres Ltd test track (FIN), 2001 Basic class FR: 2204 km/l BS Mileage Marathon (FIN) Nogaro (F) 2002 Diesel FR: 2455km/l BS Mileage Marathon (FIN) Nokia (FIN), HNi

3 BS Mileage Marathon Mission BS Mileage Marathon was founded in It's headquarters are located in Lempäälä Finland. The aim of the team is to built and develop eco-marathon vehicles to be as economic as possible and to thrive as well as possible in international races in basic class category. In addition to the everyday work the team promotes its co-operative partners and offers an opportunity for the members for creative inventions and problem solving, as well as for applying the learned skills in demanding technical applications. BS Mileage Marathon Iisakinkuja 3 A FIN Lempäälä FINLAND Tel HNi

4 Eco-Marathon competition Case: CIRCUIT PAUL RICARD - LE CASTELLET Six 3208m laps, total race distance 19248m Total time 48’00’’, average speed 25km/h Height difference 16m 25 accelerations Driving technique: The competitors must complete a given distance (usually 15-20km) at a minimum average speed of 25 km/h or 20 km/h (only in France). Switching off the engine and rolling on neutral are allowed during the race. Acceleration 1. 8s, 20-33km/h Acceleration 2. 9s, 18-33km/h Acceleration 3. 9s, 20-36km/h Acceleration 4. 2s, 21-25km/h Starting acceleration 15s, 0-25km/h = Uphill HNi

5 Technical factors Rolling resistance Rolling resistance Aerodynamics Efficiency of the transmission system Efficiency of the transmission system Contol- systems Contol- systems Surface quality Surface quality Shape Reference area Reference area Tyres Bearings Wheel angles Wheel angles Efficiency of the engine Efficiency of the engine Weight Thermal efficiency Thermal efficiency Mechanical efficiency Mechanical efficiency Fuel saving - Technical factors Good Eco-Marathon vehicle... … has good rolling properties … has an engine with high efficiency … has low air resistance … is light (1kg  0,5% of result) … is result reliable Efficiency coefficient Efficiency coefficient HNi

6 Human factors Mistakes Team Product quality Product quality Partners Driver Driving skills Fuel saving - Human factors Good Eco-Marathon driver... … is capable to drive constant performances … ’sees’ profiles of the track and notices changing weather conditions … is capable to make concrete adjustment suggestions based on driving … have reserves of strenght - saves ’the last drop’ in strict competition situation HNi

7 Bumps Coarseness Type of surface Environmental factors Climate Track Profile X X Y Y Temperature Air Track Air humidity Barometric pressure Barometric pressure Wind Speed Direction Surface quality Fuel saving - Environmental factors Optimal weather conditions: Dry surface Partly clouded High barometric pressure High air humidity Calm Air temperature 20-25°C Record track: Quite old, smooth tarmac surface Small height differences - as constant speed as possible No tight corners, acceleration points on the straights HNi

8 Factors affecting to fuel consumption Use of best components and materials Non-compromising design Automatization Standardization Quality of the tools Training Minimization of the environmental factors by means of design Control systems Technical factors Environmental factors Human factors Automatization Fuel consumption Engine Transmission Rolling resistance Air resistanceAscent resistance Accelerating powerBraking resistance HNi

9 Air resistance vs.rollig resistance Air resistance vs.rollig resistance HNi

10 BS02 ’T-Rex’ (-99) HNi

11 BS03 ’Velociraptor’ (-03) HNi

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