View Single Post
Old 06-30-19 | 09:23 AM
  #108  
350htrr
Senior Member
10 Anniversary
 
Joined: Jul 2012
Posts: 3,839
Likes: 57
From: Canada, PG BC

Bikes: 27 speed ORYX with over 39,000Kms on it and another 14,000KMs with a BionX E-Assist on it

Originally Posted by tcs
Experienced ebikers:

On a pedelec with cadence sensing assist actuation, can you kick in the electric motor assist by turning the cranks backward?

Hmm. (googling, googling) The answer seems to be 'no', so the bike doesn't surge forward when the rider spins the cranks around backward to position them for starting out. Correct?

But the assist level is controlled by crank rpm? So if one is riding along and wants to go faster via more assist, they would shift to a lower gear to speed up crank rotation?
As far as I know, all you needs do is rotate the crank, the RPM or the amount of pressure onto the pedals doesn't make any difference as to how much assist the motor puts out... The assist level depends on the level you pick, like level 1=25%, level 2= 50 %, level 3=75% and so on... You can pretend pedal or you can actually pedal normally...

For a pressure sensor, if level 1=25% and you put 1.0 Lbs of pressure onto the pedals you get 0.25Lbs added to your 1.0 Lbs, if you put 10.0 Lbs you get 2.5 Lbs added to your input to the pedal effort... On level 2 you would get 50%... and so on... RPM not changing anything. There is also NO OPTION of pretend pedaling...

Last edited by 350htrr; 06-30-19 at 11:39 AM. Reason: add stuff
350htrr is offline  
Reply