Recent content by stancecoke

Are you variing the time with the duty cycle? Most people only measure at the middle of the cycle, that only works up to 70-80% duty cycle. Above that, the signal gets noisy. Then you have trigger the ADC conversion at a different time. Always make sure, that you read from the two phases with...

Yes of course. The position of the motor has nothing to do with the assistance behaviour. It's just proportional to the riders effort. Each manufacturer may have his own strategy to calculate the motor power from the sensor data in detail, but the main principle of motor power = factor * human...

I did a test ride on the German Spezi fair trade this weekend. The bike was from EBS, they shared the booth with Grintech. The system is great! :cool: I've tested three different geared motors with the KCLamber cassette integrated torquesensor so far, but as I'm a fan of direct drives, the Grin...

You have to be aware, that this is no classical FOC with Park, Clarke etc. It's just adjusting the advance angle following the theory. But it's the best, you can get of the poor controller hardware :) ?! @casainho has implemented the advance angle adjustment following the paper of Shane Colton...

?! Why do you think this is noisy? You just have to do it the right way. The timing is extremely important, to get proper reading. See this ST paper. Chapter 5 shows, how to do it right...

OK, you will have to update the windows makefile I guess. We had a discussion at GitHub, if someone will maintain this project in future, but nobody was found. :( https://github.com/stancecoke/BMSBattery_S_controllers_firmware/pull/31

You don't need to use the Java tool. You can just edit the config.h file with any text editor and start the compiling and flashing by double click on the Start_Compiling.bat file. https://github.com/stancecoke/BMSBattery_S_controllers_firmware/blob/Master/Start_Compiling.bat

Can you ask JYTCon for a firmware, that controls the current with the levels, not the speed. Or make this option settable in the display, like Kunteng does with the parameter P3

Yes, I know, but they seem to be only available in the UK shop?! And they seem to have simple speed levels, not power levels. https://www.yosepower.co.uk/products/rear-e-bike-conversion-kit-36v250w-27-5-28-cassette-motor-with-36v13ah-hl1-battery?variant=43388458959068 The JYT controllers are...

there is no wrong or right, both ways are working. There is a detailed german tutorial how to compile at github and flash via the display connector. It should work even with a very old controller. open_source_firmware_fuer_lishui_-controller:compilieren_bei_github [Wiki Pedelec-Forum] If not...

Bird scooters are using Lishui controllers, so it should be quite easy to make them run with the EBiCS firmware. Is there any information about the communication protocol between the battery and the controller? I've listened to the datastream, it uses a KM5S-like protocol @9600BAUD. The...

It won't work with Kunteng displays. ASI has native support of some UART (SWLCD and 5S) protocols, but not Kunteng. Kunteng uses the same pinout on the Higo connector, but a different protocol. The 5S protocol is the most used in chinese sytems I think., you can get displays with 5S protocol...

?! What is the aim of your project?! Any navigation app can track your tour, no DIY bike needs a fleet management..... The only interesting thing would be the torquesensor for controllig the motor power proportional to the rider's effort, but implementing it via an unreliable Bluetooth...

We have a Wiki in the German forum. I've written many articles there, but I think no one reads the Wiki. All typical newbie questions are asked and answered again and again in the forum, no one gives the hint to just read the Wiki.... 🤷‍♂️ regards stancecoke

There are many ways to attach a torque sensor to a controller. You can get Bafang controllers as spare parts from your local dealer. Kunteng, Lishui, ASI have controllers, that work with bottom bracket torque sensors out of the box. So, there is no need to use additional hardware like the CA...