Grinning_Ernst
1 mW
- Joined
- Jun 8, 2019
- Messages
- 12
After several years of use under high load, my hub motor starts making an "angry duck" noise at high rpm and under load, after about 15 miles into my rides. When the noise comes up, the motor stops providing output. Luckily I can still coast at low rpm's. The next day everything's fine until I rode it again for some time.
The motor doesn't seem overheated, I don't measure more than 140F (60C) at the stator.
The motor is rated at 3KW continuous, has ferro fluids inserted since about a year, and is hooked up to a 72v battery and an 80A controller (KLS7218S).
Here's an Donald Duck video (ignore the oversized mudguard, it's... work in progress): https://youtube.com/shorts/y1D31ifSqag?feature=share
Any ideas? Tired hall sensor, magnet, or dust?
The motor doesn't seem overheated, I don't measure more than 140F (60C) at the stator.
The motor is rated at 3KW continuous, has ferro fluids inserted since about a year, and is hooked up to a 72v battery and an 80A controller (KLS7218S).
Here's an Donald Duck video (ignore the oversized mudguard, it's... work in progress): https://youtube.com/shorts/y1D31ifSqag?feature=share
Any ideas? Tired hall sensor, magnet, or dust?