The7 wrote: b)If so, at 50kmh top speed on flat (about 41% of no-load speed), the 3 wheeler is limited by the battery current limit of 35A.
The motor current could be about 2.4 times of the battery current (about 85 A).
And it will cause an high current ripple in these 100V capacitors (order of 85A)
c) If so, at 79kmh top speed on slightly downhill ( about 65% of no-load speed), the 3 wheeler is also limited by the battery current limit of 35A.
The motor current could be about 1.5 times the battery current (about 53A).
And it will cause an high current ripple in these 100V capacitors (order of 53A).
I'm curious to know what formulas or info you used to conclude 2.4 x or 1.5 x battery current. I have an electronics engineering degree from 1984, but little recent experience, especially with 3 phase motors.
Inductor is sort of like a backwards capacitor. But I don't see how to get more than battery voltage with a batt and a capacitor, unless it's somehow switched between multiple capacitors like in an AC voltage multiplying circuit.
I'm looking to try and build an electric brake for my 404 on a XLyte 72v, 20a, PF. In theory I think it's as simple as one 100w light bulb and a switch on 2 phase wires. Ideally, 3 bulbs and a DPST push button for 3 phase smoothness. Add more lights and a dimmer for variable braking. (Could it REALLY be that simple?) Add a 3phase bridge rectifier and some other stuff for batt regen.
I'm presuming that using this e-brake will waste power if brake is on and throttle is on at same time, but nothing will probably blow. Of course, best to use with throttle off, with a brake switch.