24V ride-on buggy (CSG4 RX V4.10): violent electronic braking after pedal release – has anyone modified this controller?
Hi everyone,
I’m trying to improve the driving behavior of my daughter’s 24V ride-on buggy (white-label model BJFL5588) and I’m hoping someone here has reverse-engineered this controller before.
The problem
The car has a nice soft-start, but the stopping behavior is extremely aggressive.
When the accelerator pedal is released:
the controller performs a PWM ramp-down for about 0.5–1 second;
then it suddenly applies electronic braking by shorting the motor terminals;
the final stop is so abrupt that my daughter has already hit the steering wheel with her teeth.
I’d like the car to coast naturally for a short distance instead of instantly locking the motors.
What I’ve already measured
Controller:
CSR-24TW-11B
PCB: CSG4 RX V4.10 (2024/08/06B)
24V
Max current: 25A
The buggy has:
24V battery (7Ah)
4 × 35W brushed