What is the amount of electrical energy need to propel an electric car?
What is the amount of electrical energy needed to move one pound of weight, X number of feet, in a typical all-electrical car?
For example - you have an electric car that weighs 1,000 pounds. How much electricity will you need to pull from your batteries to propel the car to various speeds?
I am guessing that this output will also determine the amount of stored energy (in batteries) that will be needed to propel the car X number of miles.
Is there a formula to determine the electrical output needed?
Thanks
a horsepower is 750 watts.
assuming the car makers don't put larger than needed engines in regular cars, those engines are 150 or so hp.
so you need a 112 kW electric motor.
Power needed depends on, as you mentioned, weight, but also wind resistance and more importantly uphill/downhill and stopping and starting......
Electric Car in the Making
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