Hi guys,
all of a sudden, my bike showed some problems today, maybe you can help.
Relevant information:
I have this controller (converted to IRFB4110):
http://www.groetech.de/index.php?main_page=product_info&products_id=849
Motor: Heinzmann Direct drive front wheel
Battery: 16s LiFePo (50V)
Display: https://de.aliexpress.com/item/1005004708198042.htm
Images: https://imgur.com/a/tTuFe
Age: 4 years/ 13,000km
Problem: Today I noticed that the motor does not spin the way it usually does. When lifted off the ground, the wheel does not spin up on it's own with hand throttle or pedal sensor. When accelerated by hand a bit, and then throttle is applied, it spins up, but it makes a loud howling noise and there is strong vibration noticable. There is also vibration when the motor is switched on while driving. Regen braking also causes vibration and noise. When no throttle is applied, the wheel spins silently and smooth. A mechanical problem is the least I assume.
I already checked the hall sensors: Supply voltage is 4.2V, and all 3 sensors switch back and forth between 0.2V and 4.2V when the wheel is slowly rotated by hand. Die Display does not show any error codes.
Does anyone have any idea what I could check next?
Thanks,
Julian
all of a sudden, my bike showed some problems today, maybe you can help.
Relevant information:
I have this controller (converted to IRFB4110):
http://www.groetech.de/index.php?main_page=product_info&products_id=849
Motor: Heinzmann Direct drive front wheel
Battery: 16s LiFePo (50V)
Display: https://de.aliexpress.com/item/1005004708198042.htm
Images: https://imgur.com/a/tTuFe
Age: 4 years/ 13,000km
Problem: Today I noticed that the motor does not spin the way it usually does. When lifted off the ground, the wheel does not spin up on it's own with hand throttle or pedal sensor. When accelerated by hand a bit, and then throttle is applied, it spins up, but it makes a loud howling noise and there is strong vibration noticable. There is also vibration when the motor is switched on while driving. Regen braking also causes vibration and noise. When no throttle is applied, the wheel spins silently and smooth. A mechanical problem is the least I assume.
I already checked the hall sensors: Supply voltage is 4.2V, and all 3 sensors switch back and forth between 0.2V and 4.2V when the wheel is slowly rotated by hand. Die Display does not show any error codes.
Does anyone have any idea what I could check next?
Thanks,
Julian