Quote:
Originally Posted by keep_hope_alive
The work used to turn the alternator (or generator) will always be more than the output energy provided by the alternator. Input = Output + Losses. Output < Input, always.
EV motors can become generators and recharge during coasting/braking. That's what regenerative braking is. It's how the new Toyota RAV4 Prime gets such good fuel economy - it balances motor contribution and regen.
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And just for the record, we are not changing the output of the alternator, we are multiplying it and converting it from AC to DC.
That is outside of that closed system, so I believe it still follows the laws of physics so to speak.
The alternator doesn't need to power the motor, the battery does, the motor powers the alternator and drive shaft for lack of a better phrase. The alternator's low AC output is then converted to DC and with multiplied voltage and amperage, which is then fed back into the battery to offset the draw of the motor to the point the charge rate is the same or higher than the load rate.
That is also why I asked if people knew how much HP these motors produce, and how much relative draw is an alternator really going to have on a 400+ hp motor output? Do you know if it would be more or less draw compared to a regular 400+ hp Combustion engine? Or is the mechanical conversion easier in that it is more efficient than an electric motor would be?
In theory that is.