Electric Vehicles (EV) & Resources

by Srini Vason

April 2009/August 2010

During the next five years more EVs will be on the US roads using Li Iron Phosphate (LiFePO4) batteries, Li-Ion batteries, Li-Polymer batteries, NiMH batteries, and Lead-acid batteries. The high end and mid-size EVs will be using LiFePO4 batteries. Most of the ICE based cars that have been converted to EVs by owners and retrofit companies will be initially using the Lead-acid batteries with ranges based on the number of batteries used and later upgrade to LiFePO4 batteries. With proper financial incentives from the US Govt. the percentage of passenger EVs on the roads could reach 30% by 2020.

Countries like India and China could benefit tremendously from electric cars. Since average distance traveled per day is under 50 miles light weight and economical cars can be made rapidly using the Lead-acid batteries and LiFePO4 batteries.



GM Volt – E-REV

Tesla Model S – EV

Nissan – Leaf

Toyota Prius – PHEV

Mitsubishi – MiEV

Ford F-150 EV

Ford Escape -PHEV

Honda Civic – PHEV


Tata Indica Vista EV


EV Associations



EV parts suppliers



DC – brushless : – video

EV conversion manuals

Large AC Motors

Raser Technology – Symetron 200


Siemens ecorner

The power inverter

- Convert (invert) the DC battery voltage to the 3 phase AC voltage;
- Adjust AC voltage amplitude and frequency based on the drive current demand and instant conditions like RPM and torque
- Provide regenerative braking turning the traction motor into a generator for recuperating kinetic energy back to the battery pack; so it has to convert generated 3 phase AC voltage back to DC before feeding the batteries,

Future EV:


Model S

Mitsubishi – MiEV






The Volt is radically different than any on the road today. Although agreement about definitions vary, GM does not consider it a hybrid. Current hybrids cars, such as the Prius, are defined as parallel hybrids, meaning they have a small electric motor that moves the car when it is going slowly, but when speed or acceleration increases, a gasoline motor kicks in. The Volt, however, is considered an extended-range electric vehicle (E-REV). It has a very powerful all-electric 161-horsepower 45KW (100 KW peak) motor that is the only engine to power the car at all times. This engine should be capable of moving the car from 0 to 60 in 8.5 seconds, and have a top speed of at least 100 mph.

The electric motor gets its power from a very powerful high-voltage battery pack that can store enough energy to drive the car up to 40 miles in standard driving conditions. That battery pack is recharged by plugging the car into your home 110 (or 220) volt wall outlet, The battery pack will use lithium-ion (li-ion) technology. The anticipated launch date is November 2010.






Hummer – He ReEV





EV in Texas

EV in CA

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