I'm so glad I found this forum!
Please tell me if my project doesn't qualify for this section and need to be an another forum.
Technically, I'm building an EV. But a small one. After wife wanted to buy one of those plastic electric cars for kids for $250 - I saw an opportunity to have a fun project, and decided to build an EV for kids, myself. My kids are currently 3.5 and 1.5.
It's a two seater, side by side, open wheel, rear engine. 4.5 ft long, 3ft wide (at the rear wheels), body is 20" wide. Body built out of plywood, with oak for structural reinforcment, glued+screwed together. No separate frame. It's very strong and rigid back to front (can easily carry my 150lbs mother-in-law, but not too rigid on twisting which is fine. Rear wheels are 15"x6x6 wheels, and fronts are slim 12" bicycle wheels.
Anyway, I currently have a rolling chassis and working on finishing steering. Can take pictures if somebody interested.
I need some advice (a lot of it) on electrical setup. My target speed for two kids in a car - about 10mph. If I'll need more, I can always change sprokets later, but say 10mph is target speed, considering kids age. The chassis weight is about 50lbs now (wild guess), two kids are around ~65lbs together.
I'm not too strong in electrical area. After reading a lot, I guess I need 24V system, with may be 350W motor. That is my wild guess. I'm afraid it can be too much for 10mph. I don't really need a racing speeds. But then I'm really afraid to spend all the money and have some slow thing neighbourhs will laugh at, and not able to climb a driveway (about 10deg incline).
Can guys who have experience in such things, tell me what setup I likely need to get 150 lbs at 10 mph top, be able to climb 10deg, and accelerate reasonably well?
For the controllers and accelerator pedal I found this site:
and I really hope this pedal will work with one of their inexpensive controllers:
Can somebody advice if those controllers are any good/will work for my project? And which one exactly? Reverse ability would be good, but minimally I just need it to work with gas pedal, and charge.
What about motors? May be I just need 100W instead of 350W? How do I know what I need to get 150lbs to 10mph without killing it?
What about batteries? All I need is half an hour from this thing. Hour would be nice. What would be the cheapest and lightest setup for, say $100?
I have one good PC 545 laying around. If I buy another one like that, will it do? Or will it kill them because they are wrong type?
Thanks a lot,