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
Best Answer - Chosen by Voters
a horsepower is 750 watts.assuming the car makers don%26#039;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...... 67% 2 Votes
Other Answers (2)
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Weight/horsepower ratio%26#039;s are fine and dandy for a %26#039;fair-weather %26#039;car%26#039;.%26#039; The forgotten aspect here,of a 3 season car is the addition of how to address wet and freezing and sub-0 external weather conditions. Most northern hemisphere cars are designed to create a comfort zone internally while at the same time produce real-time solutions to external weather situations. You must address the entire driving scenario-not just the minimal mechanical aspects.
Your basic everday car is so much more than you see. They are so refined that it is easy to take so much for granted.
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The real problem is that the electric car has a very short range. Well U could double the batteries . Well batteries are very heave and that will not double the range. There is another problem that as batteries age the power will be lowered.
33% 1 Vote