• date_rangePosted On :   Feb 23' 2008
  • location_cityCity :   North Myrtle Beach
  • languageCountry :   USA
  • content_pasteEnquiry No. :   8022373

We are interested in purchasing your electric forklift motors and
control assembly to use in the production of high speed powerful
electric cars.

We are seeking the very best electric engine you can offer. We want to
reach speeds of 120MPH and have ranges of 120 mile distance between
re-charges. This car will be a sports car type car built for performance.
We are planning to use a battery set. ( Lithium Iron Phosphate )
( hi-power lifepo4 batteries )

Can your company assist us in this project? We will need 30,000
electric engines and control assemblies to control the start and stop of
the engines in 2008 and 2009.

Electric-car Motors and Batteries
Electric cars can use AC or DC motors:

If the motor is a DC motor, then it may run on anything from 96 to
192 volts. Many of the DC motors used in electric cars come from the
electric forklift industry.

If it is an AC motor, then it probably is a three-phase AC motor running
at 240 volts AC with a 300 volt battery pack.

DC installations tend to be simpler and less expensive. A typical motor
will be in the 20,000-watt to 30,000-watt range. A typical controller
will be in the 40,000-watt to 60,000-watt range (for example, a 96-volt
controller will deliver a maximum of 400 or 600 amps). DC motors have
the nice feature that you can overdrive them (up to a factor of 10-to-1)
for short periods of time. That is, a 20,000-watt motor will accept 100,000 watts
for a short period of time and deliver 5 times its rated horsepower.
This is great for short bursts of acceleration. The only limitation is heat
build-up in the motor. Too much overdriving and the motor heats up to
the point where it self-destructs.

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