Recent content by fantasy2

Has there been another firmware release that works better?

Has anyone heard if the manufacturer is going to improve their firmware once again?

I'm seeing a 57Hz sine wave(are you in the US?). Are you sure you grounded the signal? The signal shouldn't be so sensitive to external influences. Trying to see a torque sensor signal on the bench like this will be very difficult as you can't apply much torque.

Nice! Can that fluke meter measure 2 channels? I expect a VCC 5V, GND, and 2 pulse trains.

If I remember correctly, the 5 pin is for the HAL sensors of the motor(VCC, GND, 3x output) and the 4 pin is for the torque/PAS sensor. So you want the 4-pin connector wires to the outside for measurements.

Thanks for the firmware eyebyesickle! However, after reading the report I'm not too sure about updating my V1 motor. :cry: What's your opinion on it eyebye? Is it better for V1 motors than the original flash? Did you find the locations in the hex where they stored the settings?

Did they tell you if the firmware can be used for the first released models with 6 MOSFET's?

I wonder if the original motors can be upgraded as well or if the hardware is significantly different that we have to buy a new controller.. some of us were beta testers in the end..

Any update on this topic? Is the new firmware ready?

Damn, I think that the Yamaha PW motor I also have isn't torque sensor based when it has to follow your description! It doesn't start to spin when I apply torque on the pedals but don't rotate them, so it has to be pure PAS, right? No of course not. These controllers use BOTH PAS and torque...

It is a pretty basic but advanced way to measure torque. It's used in high tech industry for turbines as well, although they have more ways to do it nowadays. Using strain gauses is the primitive way to measure.. But yeah, the technique has been around since the '50's. Measuring torque with...

Some clarification pictures below. If what I'm thinking is actually true(hard to see some details on the pictures), they use two rings of magnets and measure a phase shift between the two HALL sensors that respond to magnets in the rings. When they are in sync(hence the alignment) it means...

It would be interesting to remove the circuit board, remove it's silicone coating and make clear pictures. This should give us the answer. Measuring it on an oscilloscope would be nice as well. There are many methods to measure torque for eBikes. Tongsheng uses only one of them. Interesting...

Can you share it? I have run the cables to the outside so I can program it easily. I asked the seller and she told me that it wasn't perfect and she didn't want to give it for that reason as they are waiting for a hardware upgrade combined with improved torque sensing. That makes me think that...

There are 63V rated caps inside so I would say no. However, they are working on a new controller, so there is a possibility it will be with the new electronics!