Cycle Analyst V3.1 User Manual
Rev 1.0
In all 3 PAS modes you can control the timing when PAS kicks in as you start
pedaling, and how long it lingers after you stop pedaling. This is done by editing
the PAS Start and Stop Thresholds.
The Cycle Analyst does not sense your actual pedal speed in a continuous
manner, rather it sees a signal pulse every time a new PAS magnet passes the
sensor. The faster you pedal, shorter the time between these pulses.
When pedaling from a standstill the cranks start off spinning quite slowly and the
time between pulses can be pretty long, resulting in a delay before the motor
power engages. The longer the PAS Start Threshold time, the more likely that
even the first few pulses will start power assist. However, if the value is too long
then incidental twitches or bumps on the pedals can cause short bursts of
unintended motor power even when the cranks aren't being turned. A Start
Threshold value of 0.25-0.4 seconds works well for most setups.
When the system is under power with the rider spinning the cranks, the CA3
needs to know for how long it should continue powering the motor while waiting
for the next PAS pulse to occur. This is controlled with the Stop Threshold
setting. A short time value will result in a nice immediate cutout in motor power,
but too low will cause unintended cutouts when pedaling at low RPMs. Stop
Threshold values of 0.15-0.3 seconds work well for most setups.
In all cases, higher pole count PAS sensors have the advantage for allowing the
shortest delays in response to pedaling.
23
To Next Page
Loading...
Need help?
General