|Location||San Antonio, Texas US map|
|Vehicle||2001 Adult Trike |
Adult tricycle made by Atlas. Got it at a garage sale along with two "defunct" electric scooters, and thought I would make a conversion.
|Motor||unknown Chinese 12-24-36v 1000 watt Permanent Magnet DC|
Bought used at a garage sale. First motor was in a We-B-Scootin scooter. Changed to a 1000 watt 36 volt motor, using in 24volt mode.
|Drivetrain||#35 and #40 chains in dual jackshaft configuration (see below) 18.5:1 ratio.|
|Controller||Yi Yun YK-43|
The Yi-Yun 1000 watt controller allows me to power the 600 watt motor enough with only 24 volts.
|Batteries||6 Universal Batteries UB1280, 12.00 Volt, Lead-Acid, Gel|
UPS style battery. 8 amp hours each.
With 6 batteries in a 3 X 2 configruation, I can go over 7 miles with EV power only. If I do some pedalling, and use the motor as an assist up hills, I would get more miles to the charge.
|System Voltage||24 Volts|
6-4-2 amp charger with microcontroller to control charge rate. I can charge 3 12 volt batteries at a time.
|Heater||South Texas Sun.|
|Instrumentation||Schwinn LCD speedometer.|
|Top Speed||14 MPH (22 KPH)|
with 24v, I get top speed of about 14mph. With 36v, It gets scary. I added a second jackshaft to keep top speed down, and make hill climbing better.
|Acceleration||Good acceleration, and travels well on an incline.|
|Range||7 Miles (11 Kilometers)|
In pure EV mode - no pedalling I have a range of about 7 miles.
Could go further if I pedalled a bit more.
|Watt Hours/Mile||Will be determined later|
|Seating Capacity||1 adults|
|Curb Weight||70 Pounds (31 Kilograms)|
Trike frame, 6 small batteries small motor.
|Tires||24 inch bicycle.|
|Conversion Time||I started in 2010, and let it sit for months at a time, but now I will be working on it more often.|
|Conversion Cost||Bike $100. Scooters (controllers and electronics) $20. Motor $70 (with shipping). Motor mount $60. 6 batteries $120. Charger $30. Sprockets and chains $150. |
About $460 total.
EV Grin - priceless.
|Additional Features||I tried several combinations. The jackshaft got the ratio up to where it would go from a stop without pedal assist.|
The motor mount keeps the chains tight.
Replaced the #25 chain with a #35 chain.
The 1000 watt motor has a 19 mm shaft, and I created a one way bearing to fit a #35 chain sprocket.
3 sets of chains.
12 tooth to 30 tooth #35 (2.5:1 ratio)
12 tooth to 22 tooth #40 (1.83:1 ratio)
12 tooth to 48 tooth #40 (4.00:1 ratio)
Total ratio is 18.33:1
|Next project: Quadricycle.|
Maybe using an Etek motor and 4 motorcycle tires.