for university open day

1. Prof Kang Li & Dr Jing Deng EEECS, Queen’s University Belfast
Intelligent Grid Interfaced Vehicle Eco-charging (iGive)
- Implemented through modified G-Wiz
k.li@qub.ac.uk
Original G-Wiz
• 4.8kW DC motor
• 48v, 200Ah Lead-acid battery pack
• 400A maximum discharge current
• 8 Hours to full charge
• 50 mph of top speed
• 50 miles of driving range
Modifications
Replaced with
Li-ion battery
New Battery
Management System
Charging
through PV
Embedded with
DC charging
New features
• 100 miles driving range.
• 2.5 hours to full charge through DC interface.
• Potentially 15 minutes to full charge through rapid charge point.
• Use G-Wiz as an electricity storage to power home or support grid.
• Charge battery through solar panel.
Benefits of using
electric vehicle
 Environment friendly
 tax incentives
 VAT rebate
 free parking
 free recharging facilities
 exemption from congestion charges
Research challenges
 Accurate estimation of state of charge
 Prolong battery life
 New battery technology
 Managing charging of large number of
EVs (smart charging)
 Charging while driving (on-road
wireless charging)