Laerke

No, the trike is not ready. But I tested the motor on a test bench and saw that even a significant load did not trigger the assistance. The settings are "ULTRA" and climb assistance at maximum. There is a red LED inside which is blinking after power on (not at once, but after a second). I do not know what does that mean. It might indicate for example that calibration of the torque sensor fails, but this is just guessing. All the rest seems to work as it should - RPM measurement, speed measurement, battery measurement and the motor driver.

It expects some slope. The sinusoidal and triangle waves are accepted and the square is not. It starts reacting on > 2V, but that's because I have diodes. Will try later with pure sin wave and an offset without rectifier.

I have a function generator. Once I understand the logic behind this, can bring it to microcontroller or FPGA.

Sure, but to interpret the messages is another thing. They just send a hex code, no human readable text.

I generate a sine wave 3V and pass through a full wave rectifier.

Unfortunately, that does not work. The processor seems to monitor torque pulses and does not react on DC. The torque pulses must be somewhere between 0.3 - 1 Hz, otherwise the motor does not start. There is also a red LED blinking inside the motor box, right after power on. I suspect that it somehow detects the sensor's health state and switches to a special mode - that can explain why the motor always runs at constant speed, 90 or 120 rpm... Just trying to investigate it a bit more while waiting for answer from Ebike motor center.

But how fast would it cut off the power when you brake? Do you remember any delays after you stop pedaling completely?

In Imuplse Evo, the torque sensor has three wires and there is a separate PAS sensor which is looking at the big gear's teeth. The motor does stop when it's missing the PAS signal, but after a second. Which is better than 8 seconds delay when PAS signal present and torque signal switched off, but still not how it should be. Thank you for the suggestions. I think I am now getting closer to implementing my plan B.

Thanks, will contact them

I am building a recumbent trike and wanted to install it on that. I've also got an original display and a battery, so my goal is to utilize everything as much as possible. Chinese controller was actually my plan B from the beginning, in case I don't succeed. But for now I will still try to override the broken torque sensor somehow. Just need to understand the algorithm it works on. Seems it expects the pedaling force to be in sync with the RPM readings. Now it's not in sync, so the motor starts at 90 rpm and goes to 120 rpm when detects the movement of the wheel. Thanks for the information about 24V - will check that.

Ok, thanks for the answer. That is what I was afraid of. In fact, the torque sensor on this motor is broken and I now tried to run it by simulating the torque sensor's signal. The motor starts at 90 rpm, but does not stop immediately when the simulated signal is off. That is weird - not safe to rely only on software when the motor must be stopped.

Hello All. I have an Impulse Evo drive (bought it for a project) and would like to figure out where the brake sensors are supposed to be connected. There are 6 connectors sticking out from the unit. I thought the upper two would be for the two brakes, but it turned out they deliver 6V for the lights. The red plug, I don't know what for (maybe configuration?), there was a jumper inserted already. The big one is for the power and CAN bus, the next for display and the lower one is connected to the speed sensor and the shift wire sensor. But where are the brakes??? Will highly appreciate if someone could help me to resolve this puzzle. I

Hi All, Recently got this display together with a mid motor and a battery. Everything was installed on Focus Thron 2016. Bought it for cheap and needed for a project. The seller claimed that the display worked. And my plan was to connect it to a power supply and see it's lighting up. The display has a connector with 4 pins - GND, power and two to CAN bus. It was easy to find out what is what, but after connecting power and pressing on the throttle, nothing happens. The screen is totally black. I disassembled the box and see two LEDs are blinking. I have also verified the presence of starting pulse on corresponding processor's pin when I push the Start button. But no activity from the processor other than the heart beat. My question is: can it be that the display is missing CAN bus communication with the other equipment and that's the reason, or it is defected? I will highly appreciate if someone shed some light on that.