Bac855 delayed start and shuddering upon start

[vwrado]

Hello, I am learning how to use the ASI bac855 on my Zooz bike. Using it with the 750w rear hub motor, 48v battery, pas, throttle and eggrider display. I have access to bacdoor. Currently I was able to successfully ran the auto time for the motor in both the sensor and sensor less tab. Also tuned my throttle. I can get it to run but upon acceleration from a stop, it shudders for a few seconds and once it gets going, it runs great. If I life the wheel off the ground and hit the throttle, it would take a second or two delay then slowly start spinning then ramps up hard. What settings can I look at to fix this?

 

[slaphappygamer]

That’s going to differ for each motor. I started Current Regulator Bandwidth at 6000 rads then went down by 1000 until finally settling with 110. Once I got 1000, I went down by 100. Then by 10.

My PLL adjustments were similar. I had my PLL Bandwidth at 600 then moved down by 100, and then fine tuning by 10s. Settling on 110 rads. Then I did similar on the PLL damping. Settling on 2.80 rads. It’s a very tedious process, but I don’t think there is an easier way.