Hello,
Castle Creation discontinued Quadpack Multi-Rotor 35 ESC (https://www.castlecreations.com/en/multirotor-35-quadpack), but this Quadpack is still available from private sellers via the internet.
The Quadpack has four 35 Amps. ESC that can be programmed using the Castle Creation Link USB programming kit.

Rogerio Fiorotti demonstrated that two Multi-Rotor 35 ESCs work with his active timer. They react to the signal from the accelerometer, changing the RPM of two motors.
A short movie showing this is available on the Forum.

It is not clear, though, how these ESCs were programmed to include the governor function.

When Multi-Rotor 35 is hooked up to the computer using the Link USB, there is no governor function available in the choices displayed.

Please see the attached.

Castle Creation customer support did not answer my email.
Thank you,
M
 

 

In fact, here's a great article by Oscar Liang about those ESC's. He's a wealth of knowledge in the multirotor community

https://oscarliang.com/castle-creations-quadpack-25-esc/

In the world of multi rotor ESC's, flashing software is pretty much an ongoing thing. Last revision of castle link was just in October. I can't say for sure I'm correct on this, but id highly recommend at a minimum to check your revision number.

Hello,
I have programmed two Multi-Rotor 35 ESCs using the Castle Creation v 4.14 firmware for use in the control line flying.
The governor function and the hard brake are active.

However, the governors in these ESCs do not work 100% as they should. 

Please see the attached.

I will play with the parameters accessible during programming and perhaps the voltage, current, power and RPM can be stabilized closer to the horizontal line.

Regards,
M

Hi Dane,
Even 100 Amps. is not dangerous for the battery. (4000 mAh / 1000) x 25 C = 100 Amps.
I have used this battery only eleven times, it was never abused below 3.7 V./ cell and never drained below 80% of capacity.

The blue line is where the averaged voltage should be during five minutes flight if the governor is working correctly.

Of course, there are other "blue lines" for the averaged current, RPM, and power, each one representing the governed parameter.

When the governor is working correctly, each of those averaged parameters changes around its blue line, but these lines are reasonably horizontal.

I hope that, by tweaking all available Multi-Rotor 35 setup parameters, I will be able to force the governors to work better and give me reasonably stable RPM.

If I cannot achieve this, I will shelf the Multi-Rotor 35 ESCs and come back to my Spin 44 PRO.

Thanks,
M

But I think I'm retracting my idea of it being voltage related. The graph is pretty consistent with rpm, voltage and current draw. I wonder if the active timer is "signaling" the rpm changes somehow? It's a steady climb, like you stated. But I don't know anything about the timer you're using. So perhaps someone familiar with that can help. I just know about the esc's you're using

Wow that's a wild difference, my friend. So, my initial thoughts after seeing those two graphs are 1) what could cause such an enormous difference in current draw.  Well, maybe motor timing / motor pole count in the ESC program? Maybe double check that on the castle link.
2) Oh how I enjoy ESC info graphs.