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Today’s Transportation Needs

Today’s Transportation Needs. 115 VAC Battery Charging for Electric Drive Vehicles. Presented to ZEV Technologies Conference 25-27 September 2006. Stuart Evans, AScT Director of Sales sevans@delta-q.com www.delta-q.com. Power in Motion.

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Today’s Transportation Needs

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  1. Today’s Transportation Needs 115 VAC Battery Charging for Electric Drive Vehicles Presented to ZEV Technologies Conference 25-27 September 2006 Stuart Evans, AScT Director of Sales sevans@delta-q.com www.delta-q.com Power in Motion

  2. Introduction Electric Drive Charge Requirements Early Chargers Present-day Chargers Future chargers Presentation Overview • Electric Drive Charge Requirements • Early/Traditional Chargers • Present-day Chargers • Chargers for the Near Future

  3. Introduction Electric Drive Charge Requirements Early Chargers Present-day Chargers Future chargers Typical Electric Drive Charger • Majority of applications (>300,000/year) are battery operated industrial equipment and electric utility vehicles not on-road battery electric vehicles (BEV) • ~1kW power level plugged into 115VAC (Typical domestic power outlet) Intelligence to work within Time of Use requirements • Typically 24-72V, ~10kWh lead-acid battery pack to be charged overnight • Trend from off-board to on-board charging enabled by high frequency (HF) Technology

  4. Introduction Electric Drive Charge Requirements Early Chargers Present-day Chargers Future chargers Electric Drive Applications

  5. Introduction Electric Drive Charge Requirements Early Chargers Present-day Chargers Future chargers Battery Charging Solutions Off-board chargers in fleet application

  6. Introduction Electric Drive Charge Requirements Early Chargers Present-day Chargers Future chargers Battery Charging Solutions Early onboard application

  7. Introduction Electric Drive Charge Requirements Early Chargers Present-day Chargers Future chargers Design Factors for Onboard Charging • Space • Weight • Reliability • Cost • Thermal Efficiency • Cabling • Maintenance • Ease of Use • Charge time

  8. Introduction Electric Drive Charge Requirements Early Chargers Present-day Chargers Future chargers HF Switchmode Technology Space – typically ¼ volume of low or line frequency (LF) Weight – typically <¼ weight of LF Reliability – HF technology is maturing, >50,000 hours MTBF Cost – Silicon/microprocessor dominant design vs. line frequency transformer copper and iron Thermal Efficiency – HF allows for sealed convection cooling or active cooling

  9. Introduction Electric Drive Charge Requirements Early Chargers Present-day Chargers Future chargers HF Switchmode Technology Cabling – HF capability can include interlock, battery temp monitoring, communications, drivers for SOC and SOH display Maintenance – sophisticated charge algorithms optimized for battery type and minimum charge times Ease of Use – plug and play, active PFC, universal AC input

  10. Introduction Electric Drive Charge Requirements Early Chargers Present-day Chargers Future chargers Battery EV Charger Onboard application using HF charger

  11. Introduction Electric Drive Charge Requirements Early Chargers Present-day Chargers Future chargers Plug-in HEV Charger Battery Charging Solutions Prius Conversion • ~1000W, 250V • Universal I/P, .99 PF • Sealed construction, high efficiency • Li (Valence) batteries

  12. Introduction Electric Drive Charge Requirements Early Chargers Present-day Chargers Future chargers HF Charger Solutions – Near Future • Integrated packaging solutions for mutual cooling/heating of charger and battery pack • Integrated electrical solutions: 12V DC-DC for either auxiliary supply (BEV) or to power 12V systems when charging/key-off (PHEV) • Intelligence to work within Time of Use requirements • Integrated control or PLC communications to accommodate load shedding by utility • Communications and ID systems to enable single subscriber billing for charging away from home

  13. Power in Motion Stuart Evans 604-327-8244x108 sevans@delta-q.com www.delta-q.com

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