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Old 02-20-2020, 12:42 PM   #7324 (permalink)
MPaulHolmes
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Oh, yes if the contactor was making intermittent contact, during the times it was not making contact, the pwm would ramp up to 100% trying to force the current feedback to match the throttle position (50% of throttle forces 50% of max current feedback with the PI control loop). Then, with the duty at 100%, if the contactor suddenly made good contact again, BOOM. Dead short circuit for a moment. That would definitely trip the desat or the overcurrent fault.
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