Panasonic sensor control

warmrain

Pedelecer
Oct 26, 2016
25
4
Lincolnshire
Hello, I have a Panasonic 24v crank drive system on a Kalkhoff Tasman bike. I cannot see any magnets on the rear wheel. Does anyone know how the motor control detects the speed of the bike and where is the road speed sensor located?

Does it just measure the crank speed instead and estimate the road speed based on what it thinks what hub gear ratio is engaged? -- but then, how will it know what gear ratio is engaged?

I am trying to understand how its software manages to control the power delivery curve.
Thanks.
 
D

Deleted member 4366

Guest
It measures the output shaft speed, so if you change the size of the drive sprocket, it changes the cut-off speed.
 
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