21st-Mar-24, 02:44 AM
Some more experimenting today with the stock ESC (Tower Pro Clone) with factory firmware.
One issue has been when traversing a lane-change the ESC stops and resets which takes a second or two, very annoying :) It's possible to drive fast and blip the throttle at the LC and the car continues but that's less than ideal imho.
So I tried putting a capacitor across the voltage sense pin as I thought the ESC is sensing low battery voltage and shutting down. Nope.
Next I put a diode (white arrow) in series with the voltage regulator that powers the microcontroller. It was placed in between track power-in (red arrow) and the input pin (yellow Arrow) of the regulator. I had to desolder the regulator input pin from the pcb and insulate it from the pcb with some kapton tape. The red and yellow wires that lead below go to a capacitor. 2200uf worked great on the bench, giving about 1 sec of power and the ESC not resetting with the 10v supply briefly interrupted. The idea here is to stop the motor from draining all the available power whilst the car traverses the unpowered part of the lane-changer.
One issue has been when traversing a lane-change the ESC stops and resets which takes a second or two, very annoying :) It's possible to drive fast and blip the throttle at the LC and the car continues but that's less than ideal imho.
So I tried putting a capacitor across the voltage sense pin as I thought the ESC is sensing low battery voltage and shutting down. Nope.
Next I put a diode (white arrow) in series with the voltage regulator that powers the microcontroller. It was placed in between track power-in (red arrow) and the input pin (yellow Arrow) of the regulator. I had to desolder the regulator input pin from the pcb and insulate it from the pcb with some kapton tape. The red and yellow wires that lead below go to a capacitor. 2200uf worked great on the bench, giving about 1 sec of power and the ESC not resetting with the 10v supply briefly interrupted. The idea here is to stop the motor from draining all the available power whilst the car traverses the unpowered part of the lane-changer.
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