| Owner | Phil Chipman - Chipman Engineering | ||
|---|---|---|---|
| Location | Costa Mesa, California United States map | ||
| | |||
| Vehicle | 2010 prototype three wheeled motorcycle - tadpole - two wheels in front, two seater, side-by-side | ||
| Motor | Mars ME 0709 72 volt hi torque motor Originally had E-Tek 48 volt motor - but burnt out under heavy load - so moved up to this motor. | ||
| Drivetrain | electric motor, direct drive, chain | ||
| Controller | Alltrax 7234 | ||
| Batteries | 24 CALB/Skyenergy 70 amp hour, 3.20 Volt, Lithium Iron Phosphate | ||
| System Voltage | 72 Volts | ||
| Charger | Elcon 8 charge curves 74 to 88 volts, handy when I had to remove a bad cell and reduce the voltage of the pack | ||
| Heater | none - with fully enclosed body - and a jacket + living in southern California - comfortable. | ||
| DC/DC Converter | Green Galaxy is the brand 72 volt input - 10 amp, 12 volt output | ||
| Instrumentation | Cycle Analyst | ||
| Top Speed | 62 MPH (99 KPH) One gear - 14 tooth on motor to 54 tooth sprocket on rear wheel. | ||
| Acceleration | fast to 40 | ||
| Range | 50 Miles (80 Kilometers) Range primarily dependent on how I accelerate. Take it real easy, the range increases and the motor stays cool. | ||
| Watt Hours/Mile | 50 Wh/Mile Works out to average of 500 MPGe, readouts from the Cycle Analyst gauge - wonderful instrument - volts, kwatt, watthr/mi, amps, odometer, speedometer, etc. Had to watch amps closely, keep under 70 amps during acceleration. At a steady 25 mph, it draws 22 amps. | ||
| EV Miles |
| ||
| Seating Capacity | 2 adults | ||
| Curb Weight | 400 Pounds (181 Kilograms) Designed to be as light as possible - chrome moly tubing. Without the batteries weight is 280 lbs. As a prototype, trying to keep all weight and cost as low as possible. | ||
| Tires | ATV on-road front tires, motorcycle front tire mounted on 125cc motocross rear rim | ||
| Conversion Time | Started from scratch June of 2007, completed April 2010 - Took 600 hours to build. | ||
| Conversion Cost | Material cost approx. $6000 | ||
| Additional Features | Roll bar, low cg, wide front end. All controls - brakes, twist grip, lights, turn signals on handlebars to save weight. Accommodates over six foot driver/passenger. Hydraulic disk brakes front and rear. When shopping alone, passenger area serves as cargo space of 12+ cubic feet. The body is fiberglass composite using the same principles as in surfboards, lays on top of the frame since it is non-structural, and with removal of two pins can be lifted off for access to all internal components. | ||
| How to make a two passenger vehicle that was fast, fun,safe and practical to drive. Having raced go-karts and owned motorcycles for years I wanted to experience the same thrill at the minimum weight possible, yet have a two seat vehicle, practical for the street. I could not find plans for such a vehicle - so decided to design and build my own. Key is to not think "car" since the weight easily triples. Used bicycle, motorcycle, ATV parts. The WIND has won Longest Projected Distance Award in 2010 and 2011 of UCI's Energy Invitational race and won overall in 2012, against hybrids and fuel cell cars, getting 50 miles per 1$ worth of energy. Racecourses included uphill runs, slaloms, chicanes and stop and go's at Willow Springs and a short course at Adams Motorsport Track. | |||
Chipman WIND EV
Last Updated 09-25-2012
Copyright © 1997-2024 by Mike Chancey