Freedom EV

Freedom EV

Freedom EV is an open source hardware electric vehicle designed by the EVProduction club. It is a 3-wheeler "tadpole" EV with 2 steerable front wheels, 1 driven rear wheel, and 2 side-by-side seats.

Latest Progress

* Oct 2007 - Body and chassis are mated together. Door and window openings are cut out. Suspension is being designed and fitted.
* Aug 2006 - Chassis mold finished, and prototype chassis produced from this mold.
* July 2005 - Jerry has finished the male mold and sent it to the glass shop to build the production tooling.
* Sept 2005 - The production molds, tooling have been finished and the first body is being started. New pics under latest progress.

Business strategy

Start with 20 beta units to get processes correct and production runningsmoothly, then go fullproduction with small factoriesaround the US and Canada as needed

pecifications

Dimensions

*height 55"
*width 60"
*length 133"
*wheelbase 95"
*tread (front) 56"
*turning radius (?)
*ground clearance 7"

Weight

*empty 550 lbs
*payload 500 lbs max
*batteries 750 lbs max
*GVWR 1800 lbs

Estimated Performance

*top speed 80 mph
*acceleration 0-30 mph ?
*acceleration 0-60 mph ?
*time, 1/4-mile ?
*range at constant 30 mph 125 miles
*range at constant 60 mph 90 miles

ubsystems

These are not all decided yet; choices here are the current favorites. Links on each item go to pages with more options and information involved in the decision process.

Tires

*front 155/80R14 radial, 22.8" diameter
*rear 155/80R14 radial, 22.8" diameter

Brakes

*front Drum
*rear Drum

Motor

*type, series DC; quantity 2 [http://www.cloudelectric.com/item.jhtml?PRID=793411 D+D ES-22 6.7"] motors

Controller

*DC 450 amp PWM controller

uspension

*front double unequal length A arms, air adjustable shock absorbers)
*rear trailing arm, Gates Polychain belt drive to motor

teering

*type rack and pinion

Batteries

*type (twelve 6v flooded golf cart batteries, [http://www.trojan-battery.com/Products/ProductSpec.aspx?Name=T-105 Trojan T-105] or equivalent?)
*battery box 36" wide x 45" long x 12" high

Body

*composite one-piece body/chassis
*3 doors

Interior & accessories

*seats 2, side-by-side buckets 48" wide cabin
*heater
*air conditioner, Electric

External links

* [http://evproduction.org/wiki/index.php?title=Main_Page EVProduction wiki] .


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