The Mini QED is a demonstration vehicle that showcases the Quad Electric Drive, a four wheel motor in wheel drive, plug-in electric vehicle, developed by PML Flightlink and its partner Synergy Innovations and unveiled at the British Motor Show. The QED has an all-electric range of 200-250 miles (333-417 km) and has a total range of about 932 miles (1,500 km). The car accelerates from 0-60 mph in less than 5 seconds. Two vehicles have been produced to demonstrate what can be achieved using the companies in wheel motor technology.
Some key features are:
The PML eWheel permanent magnet wheel motor is designed to be rugged and flexible. Based on 5 years of evolution, the eWheel offers exceptional efficiency, coupled with a high power to weight ratio that makes it the ideal solution for battery powered equipment. Extensive attention to detail has been placed in the bearing, sealing and weather proofing arrangements to provide the eWheel with enough build quality to withstand arduous environments. The design features include rugged oversized taper roller bearings, fully waterproof to IP 65, high torque overload rating for fast acceleration, over-temperature thermistors fitted and smooth 12 step commutation for smooth high power performance
Performance Specifications
Emissions - Zero, for 4 hours combined urban and extra urban driving
Driving range - 1000km (predicted from bench fuel consumption trials)
Top speed - Approaching 240kph
Acceleration - 0-100kph in under 5 seconds
Braking - Regenerative only (other than handbrake for parking)
Fuel Gasoline BHP - > 640bhp
Fuel consumption - 65 – 80mpg
Mechanical Specifications
Motors 4 x 750Nm 1800rpm high efficiency Brushless permanent magnet sine wave Hi-Pa drive™ 24 phase water-cooled
Engine 250cc 2 cylinder 4 stroke gasoline 15kW at 7000rpm
Generator 20kW continuous at 250V 80Amp
Battery 300V nominal 70Amp Hour Lithium Polymer 700Amp peak
Ultra Capacitor 350V 11 Farad 700Amp limited
Anti-skid - Dynamically monitors wheel to detect skid onset. Manages state to obtain maximum non-skid torque from wheel in either acceleration or braking modes.
Traction control - Dynamically distributes torque when any wheel is in skid management mode to obtain optimum tractive effort and stability.
Thanks to Green Car Congress for the tip.
PML Flightlink, Alton, Hampshire UK
Hope they have the torque matched between the two front wheels to avoid torque steer.
IIRC, GM had problems using two motors to drive the EV-1, and so went to a single motor and a standard mechanical differential.
Of course, with 4 motors, the torque steer problem would be reduced by half.
Posted by: Don B | August 29, 2006 at 03:44 PM
That's a cool looking car.
I can feel the winds of change blowing, not to sound too hippie.
I feel like we're turning the corner from anti-electric to tolerance and soon to grudging acceptance of a superior technology.
Posted by: Greg Woulf | August 30, 2006 at 10:22 AM
Nice put, Greg Woulf :-)
This car would probably be horrendously expensive though.
With this much battery performance, just rip out the ICE! :->
Posted by: Thomas | August 30, 2006 at 05:37 PM
With range and performance like that it is a definite contender to replace current gas powered vehicles. Put a reasonable price tag on the production version and I'd buy one in a second.
Posted by: Dave | August 30, 2006 at 09:22 PM
With a quick charge, low cost, EEStor 52 KWh storage unit on board, this could be an ideal EV.
The new quick charge Altairnano battery back may be another alternative.
With more high performance (lower cost) batteries coming, this approach has great merits.
Posted by: Harvey D. | September 04, 2006 at 12:34 PM
Well, I sent PML a boatload of questions a week ago, and they haven't gotten back to me. I guess a volume of 40 units' year is too low for them.
Posted by: Quantum | September 15, 2006 at 01:24 PM
I do not buy it. Their demonstration material is somewhat rithoric, and lacks "how" details.
There is some lack of independent evaluetion or assessment stuffs there...
15 kw electric motor which matches the average energy consumption they say. But 15 kw generator in real life is small trailer.
Do they have technology to reduce size and weight of this at least 10 times, to accomodate it on board??
How about snow, wind that require far more than average energy?
Posted by: bdodyb | June 08, 2007 at 03:59 AM
i think what they are doing with the MINI QED is wonderful! just to put a little fun in it though, i would strap on some limited wheels from www.hubcap-tire-wheel.com. that would make it more appealing!
Posted by: limited wheels | April 29, 2008 at 07:16 PM
Excellent car.
Gift me one
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