Electric Vehicle

I was thinking about this for few past months. It would be great to drive car almost for free. Gas prices are running high and i would like to search for alternative. The alternative is Electric or Hydrogen.

For basic concept of EV (electric vehicle) i would choose light weight aluminium frame that i would build from scratch. I think i would use three-wheeler design with aluminium body.

Electrical side of project is going to be fairly simply, a 2-3kW AC motor working on 110V few car batteries hooked up in series with similar voltage (100-110V). After the batteries I need to make an DC to AC inverter but high power one so that it can handle powerful motor. Ah yes, a motor controller an AC one there is a lot of schematic diagrams on internet I'm sure i can find one that i need. A motor controller is one of most important things in Electric Car. With it I can control motors torque, accleration, switch between front and reverse. For charging i would use power supply with little higher voltage than batteries output (6 electrodes Lead car battery is listed as 12V every electrode out of 6 is not strictly 2V each actually it is 2.2V so a 12V car battery fully charged is 13.2V) also due to high capacity of batteries I'm going to use higher current charger just to speed up the process. Here in Bosnia like everywhere in Europe the main voltage is 220V so if use the transformer to drop down the voltage by half (110V) or higher due to transformating laws the current would go up so I'm OK with that.

For charging on the run i would use couple of small 40-50V DC generators hooked up to wheels them too connected in series. And i am going to use braking-charging method. Small generator hooked up to flywheel.

Capacitor bank made out of two or three ultra capacitors with about 800F each would be nice.

The line diagram would look like this:

Charger

On-Run charging system                           

Battery Pack

Voltage controller

Capacitor bank

Inverter

Motor controller

Couple of other controls

Motor

If u have any questions please let me know. And please give me some sugestions or correct me if I'm somewhere wrong.

Thank You