torque sensors

Does anyone use these? With or without gears. My bike will not have a rear cassette and I was thinking this might be sort of fun to use so its more like a traditional bike. The Bottom brackets cost a bit more but seem to emulate throttle to peddle simulation better. The PATTERSON165 seems like a ringer because you get the two super low end gears for high speeds and the sensor built it.


http://www.ebikes.ca/shop/electric-bicycle-parts/torque-sensors.html

Here's an article on the tech and theories if you weren't aware

https://www.electricbike.com/torque-sensors/

Any thoughts?

I am sure alot of people do. I have Bionx kit which has pre-fitted fitted some sort of torque sensor
But yeah, I find this technology amazing, love how you then use the pedals as throttle

I use gears, 2 sprockets front and 9 in back. Most times on road (when not on pedestrian zones etc) I use the big sprocket upfront and and the smallest at back. And shift smallest few gears at back when stoping for red light, climb hills, etc

Jonathanr said:

Does anyone use these?

Click to expand...

Yes. There is a lot of info about them here, but it takes some reading.

Just threads with "torque sensor" in the title:
https://endless-sphere.com/forums/search.php?keywords=torque+sensor*&terms=all&author=&sc=1&sf=titleonly&sk=t&sd=d&sr=topics&st=0&ch=300&t=0&submit=Search

Threads with it in the first post:
https://endless-sphere.com/forums/search.php?keywords=torque+sensor*&terms=all&author=&sc=1&sf=firstpost&sk=t&sd=d&sr=topics&st=0&ch=300&t=0&submit=Search

Threads with it in any post:
https://endless-sphere.com/forums/search.php?keywords=torque+sensor*&terms=all&author=&sc=1&sf=all&sk=t&sd=d&sr=topics&st=0&ch=300&t=0&submit=Search

I like the idea of torque sensors, but I find the idea of getting power in proportion to how hard you pedal diabolical. I'd much rather have independent control of power so that I can get whatever power I want with whatever pedal effort I want. For me, torque multiplication is one of those things that sounds sensible, but has no real practical use. I've ridden many bikes with torque sensors, including Bosch, Yamaha, Shimano, Bionx, Brose, plus some Chinese attempts. I'm sure some people love them, but I don't get it. I guess it's like iPhones and Apple TVs.

Yeah its interesting, even with torque sensor I need some button or throttle to add extra power when needed. I my case its a +- button to change from 70% extra effort from motor to 150% added power from motor.

But I really like it when more or less crusing, so you dont need to hold the throttle, but instead can have nice ergonomic grips

marvak said:

Yeah its interesting, even with torque sensor I need some button or throttle to add extra power when needed. I my case its a +- button to change from 70% extra effort from motor to 150% added power from motor.

But I really like it when more or less crusing, so you dont need to hold the throttle, but instead can have nice ergonomic grips

Click to expand...

You get that with a normal pedal sensor. When you use a nice current control controller, like KT, you can select 5 levels of power from 10% to 100% of maximum, which comes within 1/4 turn of the pedal all the time you pedal, and stops the moment you stop pedalling. You can have a normal throttle with it, so the throttle instantly over-rides the PAS function for instant speed/power control.

I've tested some torque sensor commercial ebikes. They are fun. A torque sensor allows me to pedal lightly and the motor stays off. Press harder and the motor comes on. I can mimic that by switching PAS levels. The sensor also helps when starting, as the pedals don't have to spin to start the motor as they do with a cadence sensor. In that case, I can feather the throttle on my bikes. So not worth the extra cost/complexity, which is pretty high on a kit bike.

In my opinion, both my KT-controllers and my BBS02 in 9 level PAS have a nice pedal feel. A torque sensor probably is more important with bikes that don't have throttles, or throttles that shut off above 20 mph.

I use the Thun.
http://www.triketech.com/Drivetrain/PowerAssist/HPV-MAC-V2.html