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Old 08-19-2018, 04:24 PM   #142 (permalink)
Ecky
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Join Date: Dec 2011
Location: New Zealand
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ND Miata - '15 Mazda MX-5 Special Package
90 day: 39.72 mpg (US)
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Got a new multimeter today.

Car idling @ 1100rpm (higher idle set by arduino for drivability reasons)

3 phase wires coming from the motor: 45.0v RMS AC measured phase to phase -> works out to ~63.6v peak, I believe (?), 2.00a, ~155w
After diode bridge rectifier: 58.5v DC, 2.50a, ~146w, ~93% efficient rectification
After power supply: 14.25v, 8.40a, ~120w, ~82% efficient at what is approximately 15% load for this unit

Not sure how efficient the 15kw motor is at producing 155w of electricity. :P

Before efficiency losses of the IMA motor, electricity generation is ~0.2HP at idle. No accessories on, just my cameras/screens and the engine.

Last edited by Ecky; 08-19-2018 at 04:36 PM..
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