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Published byWillow Reding Modified over 9 years ago
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Range Anxiety, RekkEVidde or Plug-in Hybrid Vehicles Facts about EV range EV or Plug-in Hybrid? TEMPO - 13. mai 2013 - Rolf Hagman rha@toi.norha@toi.no
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Side EV - Range Anxiety 2
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Side Assessing Range Anxiety 3
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Side RekkEVidde (EV range) Consortium 4
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Side RekkEVidde objectives 5
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Side What about range for the new EVs? 6 Citroën C-Zero Nissan Leaf Scientific aproach Range is influenced by - driving pattern (cycle), low temperature, rolling and air resistence (coast down)
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Side Real winter and laboratory tests 7 Test cell - VTT Real winter Artic Falls - TSS
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Side Real winter results - Rolling resistance: Coast down 25 – 5 km/h (TSS) 8
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Side Laboratory tests conditions - VTT 9 Normal temperature (+23 °C) Air resistance for normal temperature Road load for normal asphalt Intermediate ambient temperature (-0°C) Air resistance for intermediate temperature Road load for normal asphalt Low ambient temperature (-20 °C) Air resistance for low temperature Road load for normal asphalt Road load for old snow Road load for new snow
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Side Results for one of the EVs Energy Consumption (kWh/km) Driving – external cabin heating 10
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Side Results for one of the EVs Estimated driving range (km) Driving – external cabin heating 11 Note that this EV perform better with the Helsinki City driving cycle on asphalt than with the NED Cycle on asphalt
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Side Results for one of the EVs Estimated driving range at -20 ºC (km) Driving – with battery heating 3 kW Range Anxiety at remote areas -20 ºC!!! 12 Measures to reduce range anxiety at -20 ºC: Vehicle electric pre-heating and liquid fuel cabin heater. Or a plug-in Hybrid vehicle might be the right choice?
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Side Avaliable plug-in hybrid vehicles in Norway 13 In relation to today’s combustion engine vehicles - realistic tailpipe CO 2 savings: ”Power split hybridisation” (Toyota style) - 30 % Plug-in hybridisation - 60 %
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Side Plug-in hybrid vehicles Two technologies in one vehicle EV for short trips Hybrid vehicle for long trips No range anxiety 14 Discharging Hybrid Toyota picture
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Side Plug-in Prius pre commercial tests with leased vehicles Average driving trip lengths 15
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Side16 Plug-in Prius pre commercial tests with leased vehicles Average petrol consumption/CO 2 emissions
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Side17 EVs Size Driving range need Petrol, diesel, biofuels Electric energy Plug-in Hybrid vehicles Avoiding Range Anxiety in cold climate
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