Recent content by biggerpizza

I still have two issues with the em100sp and LY60V10 3kw hub motor. 1. The motor is definitely 15 pairs and 60 degree hall angle(confirmed by manufacture). But it doesn't run if I set pole pairs to 15 and with any combination of hall degree(-30,-60,-120,30,60,120). It only runs smooth if i set...

Thanks a lot for your help. Thanks a lot. Finally got it working. It turns out there is wiring issue(between motor and em100sp). One phase wire has 5ohm resistance. Now it works OK with my second set of wiring. And I only applied 5V on the high brake which needs 12V. cheers

Just started to play with my new votol em100sp from last week. Have some issue with the controller, couldn't figure it out . 1. Motor can run properly but won't stop when the throttle is wind back(I checked throttle voltage, it's correct - between 0.7 and 3.7V). Motor stops when throttle...

thanks guy. Got confirm from QS sails on Aliexpress this afternoon. The 3.5kw 10inch hub motor rapid version will do.

thanks. I will read it.

Thanks. That's why I seek for help here. It's a joke the crap motor(Lunyee 60V 10inch rated 3kw) we have now was bought by our boss last year. It's rpm torque table from ebay clearly shows it's output power is only up to 1.5xkw and has only 8N.m torque when rpm is around 16xx. But the QS motor...

Thanks I am looking at QS motors at the moment. I have sent message to QS aliexpress shops. But haven't got any reply. And I couldn't find any rpm/torque graph for any QS hub motor like the high speed 10 inch 205 motor online.

There is no budget limit at the moment. But it's better to be a 3-4kw hub motor. Because we just bought votol em100sp. thanks

thanks. The one I am using is 10inch scooter hub motor. it's tire diameter is 26cm. So 85km/h is roughly 1740 rpm.

I am doing a high speed robot project. Using a 60v 12ah battery pack, unbranded 3kw bldc motor controller and 3kw 10inch hub motor at the moment. The current setting can do 66km/h . Our target is 85km/h. I thought the controller is a bit dodgy so just ordered a Votol em100sp last week. Then...

It could be the battery, hub motor or motor controller. It's buckets effect. Most likely, the motor or controller is/are over-rated. I have the same issue with my robot project at the moment.

Hi guys, plan to buy a EM100 for my bike project. I have some 60V and 48 battery packs at the moment. Just wondering what's the lowest voltage(undervoltage cut off) the EM100 can do? I couldn't find anywhere in the forum. cheers

thanks a lot. I got my arduino DAC(pwm+ rc filter) working as an alternative at the moment. So I can use my board to control throttle without serial. But eventually I need the serial working.

thanks. That's a good solution but need some time to do pcb assembly.

Hey Guys, I have a robot project need a BLDC 2-3kw 48 or 60v Motor controller fully controlled by serial port( either Uart, RS485 or CAN). At the moment I have a dodgy BLDC driver using PWM plus RC filter to control the analog throttle. And I have to build extra circuit to control the reverse...