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To infinity and beyond!

011003 HNi. To infinity and beyond!. Eco-Marathon. T-Rex. 011003 HNi. Eco-Marathon in a nutshell:

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To infinity and beyond!

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  1. 011003 HNi To infinity and beyond!

  2. Eco-Marathon T-Rex 011003 HNi 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 Records: 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), 2003

  3. 011003 HNi BS Mileage Marathon Mission BS Mileage Marathon was founded in 1996. 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 - 37560 Lempäälä FINLAND Tel. +358 3 316 0551 http://www.saunalahti.fi/~fmmc/BSMM

  4. Eco-Marathon competition 011003 HNi 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. 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 Acceleration 3. 9s, 20-36km/h Acceleration 2. 9s, 18-33km/h Acceleration 1. 8s, 20-33km/h Acceleration 4. 2s, 21-25km/h Starting acceleration 15s, 0-25km/h = Uphill

  5. Fuel saving - Technical factors 011003 HNi Contol- systems Bearings Efficiency of the transmission system Weight Wheel angles Technical factors Rolling resistance Tyres Efficiency coefficient Efficiency of the engine Aerodynamics Shape Thermal efficiency Mechanical efficiency Reference area Surface quality 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

  6. Fuel saving - Human factors 011003 HNi Human factors Partners Driver Team Product quality Mistakes Driving skills 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

  7. Fuel saving - Environmental factors 011003 HNi Environmental factors Barometric pressure Type of surface Air humidity Climate Track Temperature Surface quality Wind Direction Profile Air Track Bumps Coarseness Speed X Y Record track: • Quite old, smooth tarmac surface • Small height differences - as constant speed as possible • No tight corners, acceleration points on the straights Optimal weather conditions: • Dry surface • Partly clouded • High barometric pressure • High air humidity • Calm • Air temperature 20-25°C

  8. Factors affecting to fuel consumption 011003 HNi Automatization Technical factors Environmental factors Human factors Engine Rolling resistance Accelerating power Braking resistance Fuel consumption Transmission Air resistance Ascent resistance • 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

  9. Air resistance vs.rollig resistance 011003 HNi

  10. BS02 ’T-Rex’ (-99) 011003 HNi

  11. BS03 ’Velociraptor’ (-03) 011003 HNi

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