Brendan Sears   Toyota
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Brendan Sears Toyota

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SEI Electric Vehicles Conference, April 2009

SEI Electric Vehicles Conference, April 2009

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Brendan Sears   Toyota Brendan Sears Toyota Presentation Transcript

  • Three Major Issues Accelerated Global development of 1. Energy consumption of industry & technology fossil fuels in the 21st century 2. CO2 (global warming measures) Population growth (in USA, Asia, etc.) Growing number 3. Air quality of motor vehicles
  • Prius (THS) 1997~2003 Features of System 1 Two electric motors 2 Ni-MH battery 3 Power split device Power Control Unit Generator Inverter Battery Power split device Motor Engine Reduction Gear Mechanical power path Electrical Transmission for HV power path
  • Evolution of Hybrid Units •Continuous improvements (KAIZEN) •The challenge to achieve higher performance • Smaller, lighter units with improved output Inverter Main hybrid system units Generator Traction motor Battery
  • Prius (THSII) 2003~ Features of System 1 Two electric motors 2 Ni-MH battery 3 Power split device Power Control Unit Generator Inverter Battery Power split device Motor High-voltage boost Engine circuit Reduction Gear Mechanical power path Electrical Transmission for HV power path
  • Basic components Toyota Hybrid Synergy Drive® HV battery Pack improvements:  - 26% Modules (38  28 modules)  - 30% weight (56 kg  39 kg)  - 15 % volume (- 6 l)  - 23% static current drop  more efficient Added connection portion between each cell Module (6 Cells) Cell (1,2 V) 38  28 modules 273,6 V  201,6 V
  • Battery 1600 1400 Lighter ‘03 Prius (Prismatic resin case) Output density (W/kg) 1200 35%up 1000 800 ‘00 Prius Prismatic resin case 600 ‘97 Prius 400 (Cylindrical) 200 Smaller 0 0 500 1000 1500 2000 2500 3000 3500 Output density (W/L)
  • Toyota Hybrid Synergy Drive® Improvements Toyota Hybrid Synergy Drive® vs. THS: + 8% petrol power: 53 kW  57 kW + 50% electric power: 33 kW  50 kW + 14 % electric torque: 350 Nm  400 Nm over a 3 x wider range Substantial increase in contribution of electric motor Higher voltage to electric motor/generator: 273,6 V  500 V – superior power – minimised electrical losses Enhanced charging capacity of generator: more power and speed – 33,8 kW  37,8 kW – 6,500  10,000 rpm Newly developed battery pack – more compact and lighter (-30%) – superior output density – improved charge and discharge capacity Aluminium High voltage wire harness (weight reduction)
  • HV Market: Cumulative sales (worldwide) 1500 1 million Cumulative number of hybrid sales All HVs including other company’s HVs (Total) 1000 TOYOTA / LEXUS (Thousand) HVs (Total) PRIUS(Total) 500 PRIUS (US, Europe, …) PRIUS (Japan) 0 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 (Year
  • Irish Market Experience • Hybrid sales exceed 2,500 at end of 2008 • Mainly private buyers • Toyota Ireland role in promoting Hybrid • No.1 in customer satisfaction J.D. Power • Resale value is very strong • Appeal of Hybrid reaching a wider customer base
  • 300 Source: VCA data Low CO2 emission European C segment vehicles Gasoline Petrol 250 TtW CO2(g/km) 200 Diesel LPG 150 CNG 100 Prius hybrid 50 EV Plug-in hybrid 0 0.05 0.10 0.15 0.20 0.25 0.30 Clean TtW NOx(g/km) Plug-in technology can further enhance the environmental performance of hybrids both in CO2 & pollutant emissions
  • FT-EV Concept
  • Plug-in Hybrid
  • Plug-in Hybrid Vehicle Motor Engine Motor Mainly EV in city Mainly HV in long distance and driving high speed driving Recharging circuit Engine Battery Motor Household 120 / 240 VAC single phase electrical Recharged mainly at night energy Plug-in hybrids : A new style of electricity utilization