Torque sensor mounted on throttle connection

[KylerLaird]

This bike came back in for maintenance today. It has both a torque sensor and a cadence sensor. They work together. When you pedal faster by down shifting while also increasing pedal pressure, it gives you more. I did the connections thru-frame.

I read "[...] increasing pedal pressure [...] gives you more." That sounds like pure torque sensing. What am I missing?

My project bike was running strictly current control; the harder you pedal, the more power you get. It seemed very natural.

(BTW, I just now determined that I have a problem with the torque sensor. I tried a few spares, but I suspect it's a cable problem.)

 

[Jeffery M]

I would like to enhance the experience and performance. Now I play a lot with the assistance level in order to find the proper speed and level thru out heavy trafic .
Also I would like to have a better ratio in pedaling over assistance without playing so much with assistance level. It's hard to assist the motor at the right speed when the trafic speed constantly changes .
Definitely I'm looking for reabilty and ease of use.

I am doing exactly the same thing, I've used cadence on 4 bikes and want to try torque sensing, I now have a bike in need of service that has a TMM4 torque sensor and am thinking I could parallel it with the throttle input. Otherwise the controller options are few that have a designated torque sensor input, I must be having the same cravings as you, I'd like to try the automated power assist that feels how hard I am pushing on the pedals, it just makes sense, I think ideally both is best, with having the throttle only when an extreme assist is helpful, like momentarily on a short incline, or a quick burst situation, but not as a main assist use, too much attention is needed, Cruise control has always been a great feature for me in cars. I see the Kelly controllers on their website is a possibility.

 

[scrambler]

I did something similar on my bike, I had to design my own torque sensor as I could not fit any existing one, but as far as the connection, it is connected in parallel to the throttle.
You do need to make sure the Voltage range is the same as the throttle (usually 0 to 5V), and you may want to put some Schottky diodes on the sensor and throttle wires to prevent the voltage to flow between the throtle and the sensor.