Great to see someone understand what's the problem with our hobby grade brushless tech. 10 years of brushless stuff, WHY not every brushless combo has a timing map programmed by the manufacture?
I can take a stab at some things that you might be seeing from one esc to the next. commutation is an output. its the relationship of when the coil is fired. the more precisely it is triggered in the real world the better it will be. there is a frequency at which it triggers. the processor has a fixed frequency and the transistor has a fixed frequency. if both are at a very high frequency there is more resolution to the physical relationship of the rotor and coil. the same concepts apply to the sensors that are being read. you have hall effect sensors and sensor less measurements based on back emf. In general, the error or accuracy of the last coil firing hinders or helps the next pulse a 5% change in output is probably common.
Very good Video and Info. Interesting to see that there is in fact a difference in ESCs Blinky Mode Power Outputs. I noticed this when running a knock off Chinese ESC and was struggling, then swapping to a LRP ESC and noticed that i was going quicker. Too bad that it still seems to be in the developing companys mind what "Zero Boost" really means and its not the same at all.
I know guys set their motor timing that way but I don't so can't really comment. I use the dyno so I can see the performance over the entire RPM range and not just one point.
@@RCCrewChief Was looking at file 2 and 3, where peak power seemed to be and amp draw was 4.9 and 6.1 respectively. Therefore wondered if this was the sweet spot and good to set the timing to these amp draws in blinky.
From what I know motor + boost + turbo should be no more than 60 deg. I haven't run a class with boost for a long time so could be wrong. I'll be doing more testing and will post the results.
A perfect system would have a map for, lets say, for every 1000RPM increase, throttle input and given temperature. So you will get max performance and efficiency.
Absolutely great insight. Looks like I will be purchasing rccrewchief, if it is still available.
Great to see someone understand what's the problem with our hobby grade brushless tech. 10 years of brushless stuff, WHY not every brushless combo has a timing map programmed by the manufacture?
This video is so interesting, as always. Thank you so much. I Like your videos a lot. I added you to my public RC playlist. Great work.
Brilliant analysis! I am waiting for my Dyno to be delivered but this information will really help me. Thanks!
I can take a stab at some things that you might be seeing from one esc to the next. commutation is an output. its the relationship of when the coil is fired. the more precisely it is triggered in the real world the better it will be. there is a frequency at which it triggers. the processor has a fixed frequency and the transistor has a fixed frequency. if both are at a very high frequency there is more resolution to the physical relationship of the rotor and coil. the same concepts apply to the sensors that are being read. you have hall effect sensors and sensor less measurements based on back emf. In general, the error or accuracy of the last coil firing hinders or helps the next pulse a 5% change in output is probably common.
Very good Video and Info. Interesting to see that there is in fact a difference in ESCs Blinky Mode Power Outputs. I noticed this when running a knock off Chinese ESC and was struggling, then swapping to a LRP ESC and noticed that i was going quicker. Too bad that it still seems to be in the developing companys mind what "Zero Boost" really means and its not the same at all.
For 17.5 blinky, setting timing to a no-load 5 to 6 amp draw is a good ballpark? Thanks.
I know guys set their motor timing that way but I don't so can't really comment. I use the dyno so I can see the performance over the entire RPM range and not just one point.
@@RCCrewChief Was looking at file 2 and 3, where peak power seemed to be and amp draw was 4.9 and 6.1 respectively. Therefore wondered if this was the sweet spot and good to set the timing to these amp draws in blinky.
I would start with this motor set to around 50-52 deg which would be File 3.
Possible to do some 1s testing, In relation to can Timming.
Thanks
Charl Esterhuizen need a 1s ESC and a battery.
Shouldn't the physical timing of the motor be always more then the turbo timing?
From what I know motor + boost + turbo should be no more than 60 deg. I haven't run a class with boost for a long time so could be wrong. I'll be doing more testing and will post the results.
A perfect system would have a map for, lets say, for every 1000RPM increase, throttle input and given temperature. So you will get max performance and efficiency.