Need some help on motor config and app config for Flypsky 65161 motor with FSESC75200 75V

EFOIL.builders Builds
1

Hi Everyone,

We are building a Tow Boogie and have run into issues with the speed of the boogie. The motor doesn’t seem to be generating enough speed. For starters we followed the boogie on a surfboard and got up to 7mph speed.

So we are testing the setup in the swimming pool with the board out of the water and the motor and prop in the water. We are getting only
max ERPM:5000
Max motor current : 48A
Battery Current: 25A

When we push the motor past 48A, the motor stutters and lose thrust and the motor current falls to 30A but will still keep running. If we back off the throttle and then the motor will start picking up the speed again but will hit the stutter at 48A.

The Battery pack is capable of delivering upto 225A. There are 3 battery packs connected in parallel . Each Battery packs is 14S 5P of 21700 which gives 50V , 75A.

We suspect the FSESC settings. We’ve been tweaking the FSESC config through VESC Tool and are not able to figure out why the FSESC is not driving the Current above 48Amps. Hoping to get help from the experts here in this forum. If anyone has a working motor config and appconfig for Flipsky Fsesc75200-75v and 65161-120KV-motor setup that’ll be super helpful.

Specs for FSESC and 65161 motor:https://flipsky.net/collections/groups/products/group-f7-water-sports-kit-includes-high-current-fsesc75200-75v-and-65161-motor

Here is the wiring diagram

2021_02_27 11_14 PM Office Lens
2021_02_27 11_14 PM Office Lens2383×2818 670 KB

My Appconfig: https://drive.google.com/file/d/1RpfGdOI42ga4fny7EF2PO7UXChiADpEr/view?usp=sharing
My MotorConfig:https://drive.google.com/file/d/1qAZzRmyk8V83cow99QxzeYZmvcPesmbL/view?usp=sharing

2

Here’s the log from one of the test run.

Batt_current (red)
Motor_current (green)
Duty_cycle (black)
eRPM/1000 (Blue)

fsesc-logs
fsesc-logs1380×694 108 KB

Raw data:
Time(sec) voltage Batt_Current Motor_current Duty_cycle RPM/1000
4.63 50.00 0.00 0.29 0.00 -0.00
5.63 50.10 0.00 0.29 0.00 -0.00
6.63 50.20 0.00 0.29 0.00 -0.00
7.63 50.10 0.00 0.29 0.00 -0.00
8.63 50.20 0.00 0.29 0.00 -0.00
9.63 50.20 0.00 0.29 0.00 -0.00
10.63 50.10 0.00 0.29 0.00 -0.00
11.63 50.10 0.00 0.29 0.00 0.00
12.63 50.10 0.00 0.29 0.00 0.00
13.63 50.10 0.00 0.28 0.00 0.00
14.63 50.10 0.00 0.29 0.00 0.00
15.63 50.10 0.00 0.28 0.00 0.00
16.63 50.10 0.00 0.29 0.00 0.00
17.63 50.10 0.00 0.29 0.00 0.00
18.63 50.20 0.00 0.29 0.00 0.00
19.63 50.10 0.00 0.29 0.00 0.00
20.63 50.10 0.00 0.28 0.00 0.00
21.63 50.20 0.00 0.29 0.00 0.00
22.63 50.00 0.00 0.29 0.00 0.00
23.63 50.10 0.00 0.29 0.00 0.00
24.63 50.10 0.00 0.28 0.00 0.00
25.63 50.10 0.00 0.28 0.00 0.00
26.63 50.10 0.00 0.28 0.00 0.00
27.63 50.10 0.00 0.28 0.00 0.00
28.63 50.10 0.00 0.28 0.00 0.00
29.63 50.10 0.00 0.29 0.00 0.00
30.63 50.10 0.00 0.28 0.00 0.00
31.63 50.20 0.00 0.28 0.00 0.00
32.63 50.10 0.00 0.28 0.00 0.00
33.63 50.10 0.00 0.29 0.00 0.00
34.63 50.00 0.00 0.29 0.00 0.00
35.63 50.00 0.00 0.28 -0.00 0.00
36.63 50.10 0.00 0.29 0.00 0.00
37.63 50.10 0.00 0.29 0.00 0.00
38.63 50.10 0.00 0.28 0.00 0.00
39.63 50.10 0.00 0.28 0.00 0.00
40.63 50.00 0.00 0.28 0.00 0.00
41.63 50.10 0.00 0.29 0.00 0.00
42.63 50.20 0.00 0.28 0.00 0.00
43.63 50.10 0.00 0.28 0.00 0.00
44.63 50.00 0.00 0.28 0.00 0.00
45.63 50.10 0.00 0.28 0.00 0.00
46.63 49.50 1.41 3.21 0.55 4.68
47.63 50.00 6.88 13.55 0.00 0.03
48.63 50.10 0.00 0.27 0.00 0.01
49.63 50.10 0.05 1.09 0.09 1.25
50.63 50.10 0.73 7.51 0.11 1.70
51.63 50.10 0.97 8.39 0.12 1.67
52.63 50.00 1.18 9.55 0.13 2.01
53.63 50.10 1.49 10.99 0.13 2.06
54.63 50.00 1.92 12.46 0.16 2.23
55.63 50.00 2.41 14.21 0.20 2.69
56.63 50.00 3.65 18.54 0.20 2.79
57.63 50.20 4.04 19.42 0.26 3.05
58.63 49.80 5.35 22.29 0.24 2.95
59.63 49.80 5.34 22.30 0.23 2.98
60.63 49.70 6.19 23.96 0.27 3.22
61.63 49.80 6.89 25.43 0.25 3.18
62.63 49.70 6.91 25.48 0.21 3.23
63.63 49.70 6.95 25.54 0.23 3.24
64.63 49.60 8.97 29.48 0.35 3.49
65.63 49.50 9.68 30.83 0.24 3.51
66.63 49.70 9.57 30.72 0.34 3.48
67.63 49.30 12.41 34.69 0.36 3.87
68.63 49.60 14.34 37.38 0.42 4.00
69.63 49.40 14.29 37.42 0.29 3.86
70.63 49.20 15.12 38.11 0.44 3.98
71.63 49.70 18.62 41.44 0.45 3.92
72.63 49.30 18.63 41.13 0.44 4.19
73.63 49.20 18.57 41.29 0.46 3.98
74.63 48.90 20.86 43.37 0.42 4.65
75.63 48.70 24.88 47.91 0.54 4.60
76.63 48.20 24.85 48.34 0.43 3.83
77.63 49.00 24.89 48.33 0.54 4.69
78.63 49.10 24.90 48.08 0.64 4.43
79.63 49.00 24.87 48.59 0.47 4.55
80.63 49.30 24.73 48.30 0.47 4.50
81.63 48.90 24.97 48.54 0.55 4.59
82.63 48.70 24.90 48.40 0.56 4.41
83.63 49.70 23.11 45.98 0.14 2.61
84.63 50.00 0.00 0.34 0.00 0.01
85.63 49.90 0.00 0.34 0.00 0.00
86.63 49.90 0.00 0.33 0.00 0.00
87.63 49.90 0.00 0.33 0.00 0.00
88.63 50.00 0.00 0.33 0.00 0.00
89.63 49.90 0.00 0.33 0.00 0.00
90.63 49.90 0.00 0.33 0.00 0.00
91.63 49.90 0.00 0.33 0.00 0.00
92.63 50.00 0.00 0.33 0.00 0.00
93.63 49.90 0.00 0.33 0.00 0.00
94.63 50.00 0.00 0.33 0.00 0.00
95.63 49.90 0.00 0.32 0.00 0.00
96.63 50.00 0.00 0.32 0.00 0.00
97.63 50.00 0.00 0.32 0.00 0.00
98.63 50.00 0.00 0.32 0.00 0.00
99.63 49.90 0.00 0.32 0.00 0.00
100.63 49.90 0.00 0.32 0.00 0.00
101.63 50.00 0.00 0.32 0.00 0.00
102.63 50.00 0.00 0.32 0.00 0.00
103.63 50.10 0.00 0.32 0.00 0.00
104.63 50.00 0.00 0.32 0.00 0.00
105.63 50.20 0.00 0.33 0.00 0.00
106.63 50.00 0.00 0.40 0.00 0.02
107.63 50.00 0.01 0.60 0.01 0.51
108.63 50.00 0.29 2.24 0.00 0.13
109.63 49.70 16.26 35.73 0.21 2.09
110.63 49.20 16.14 36.82 0.47 4.27
111.63 49.30 24.65 47.35 0.27 3.96
112.63 49.20 10.41 22.19 0.63 4.51
113.63 49.00 24.55 47.93 0.42 4.62
114.63 50.00 3.22 7.25 0.00 0.02
115.63 50.00 0.00 0.32 0.01 0.01
116.63 49.10 21.93 44.31 0.57 4.34
117.63 49.60 21.75 44.49 0.20 3.38
118.63 49.80 7.93 19.08 0.14 0.66
119.63 49.60 1.14 4.72 0.30 2.58
120.63 48.90 23.24 46.33 0.46 4.53
121.63 48.90 24.52 47.67 0.43 4.56
122.63 49.90 6.94 14.40 0.00 0.03
123.63 49.90 0.01 0.49 0.00 0.02
124.63 49.90 0.04 0.77 0.00 0.14
125.63 50.00 0.00 0.20 0.00 0.01
126.63 49.90 0.42 3.04 0.01 0.42
127.63 49.80 0.00 0.28 0.00 0.01
128.63 49.30 0.89 3.25 0.40 3.91
129.63 49.10 22.79 45.71 0.56 4.64
130.63 49.10 19.39 40.95 0.53 4.46
131.63 49.10 15.95 34.06 0.64 4.35
132.63 49.90 16.52 33.20 0.02 0.49
133.63 49.00 2.37 6.12 0.49 4.33
134.63 48.90 24.46 47.51 0.44 4.60
135.63 49.00 24.32 47.71 0.50 4.55
136.63 49.10 24.05 47.62 0.51 4.51
137.63 49.00 24.19 47.67 0.41 4.14
138.63 49.30 16.32 35.80 0.45 4.01
139.63 49.00 23.90 47.38 0.53 4.29
140.63 48.90 23.39 46.69 0.42 4.43
141.63 48.90 23.10 46.62 0.53 4.43
142.63 48.80 23.05 45.60 0.42 4.47
143.63 49.00 23.22 46.08 0.45 4.39
144.63 49.80 1.73 4.27 0.00 0.01
145.63 49.80 0.00 0.32 0.00 0.00
146.63 49.80 0.00 0.31 0.00 0.00
147.63 49.90 0.00 0.32 0.00 0.00
148.63 49.80 0.00 0.31 0.00 0.00
149.63 49.90 0.00 0.31 0.00 0.00
150.63 49.80 0.00 0.31 0.00 0.00
151.63 49.80 0.00 0.31 0.00 0.00
152.63 49.90 0.00 0.32 0.00 0.00
153.63 49.90 0.00 0.31 0.00 0.00
154.63 49.90 0.00 0.31 0.00 0.00
155.63 49.90 0.00 0.31 0.00 0.00
156.63 49.90 0.00 0.31 0.00 0.00
157.63 49.90 0.00 0.31 0.00 0.00
158.63 50.00 0.00 0.31 0.00 0.00
159.63 49.90 0.00 0.31 0.00 0.00
160.63 49.90 0.00 0.31 0.00 0.00
161.63 50.00 0.00 0.31 0.00 0.00
162.63 49.90 0.00 0.31 0.00 0.00
163.63 49.90 0.00 0.31 0.00 0.00
164.63 49.90 0.00 0.31 0.00 0.00
165.63 49.90 0.00 0.31 0.00 0.00
166.63 50.00 0.00 0.31 0.00 0.00
167.63 49.90 0.00 0.32 0.00 0.00
168.63 49.90 0.00 0.31 0.00 0.00
169.63 50.00 0.00 0.31 0.00 0.00
170.63 49.90 0.00 0.31 0.00 0.00
171.63 49.90 0.00 0.32 0.00 0.00
172.63 50.00 0.00 0.31 0.00 0.00
173.63 49.90 0.00 0.31 0.00 0.00
174.63 49.80 0.00 0.31 0.00 0.00
175.63 50.00 0.00 0.31 0.00 0.00
176.63 50.00 0.00 0.31 0.00 0.00
177.63 49.90 0.00 0.31 0.00 0.00
178.63 49.90 0.00 0.31 0.00 0.00
179.63 49.90 0.00 0.31 0.00 0.00
180.63 50.00 0.00 0.31 0.00 0.00
181.63 50.00 0.00 0.31 0.00 0.00
182.63 49.90 0.00 0.31 0.00 0.00
183.63 49.90 0.00 0.31 0.00 0.00
184.63 50.00 0.00 0.31 0.00 0.00
185.63 50.00 0.00 0.31 0.00 0.00
186.63 50.00 0.00 0.31 0.00 0.00
187.63 50.00 0.00 0.31 0.00 0.00
188.63 50.00 0.00 0.31 0.00 0.00
189.63 49.90 0.00 0.31 0.00 0.00
190.63 49.90 0.00 0.31 0.00 0.00
191.63 49.90 0.00 0.31 0.00 0.00
192.63 50.00 0.00 0.31 0.00 0.00
193.63 50.00 0.00 0.31 0.00 0.00
194.63 50.00 0.00 0.31 0.00 0.00
195.63 49.90 0.00 0.31 0.00 0.00
196.63 50.00 0.00 0.31 0.00 0.00
197.63 49.90 0.00 0.31 0.00 0.00
198.63 50.00 0.00 0.31 0.00 0.00
199.63 50.00 0.00 0.31 0.00 0.00
200.63 50.00 0.00 0.31 0.00 0.00
201.63 49.90 0.00 0.31 0.00 0.00
202.63 50.00 0.00 0.31 0.00 0.00
203.63 49.90 0.00 0.31 0.00 0.00
204.63 49.90 0.00 0.31 0.00 0.00
205.63 49.90 0.00 0.31 0.00 0.00
206.63 49.90 0.00 0.31 0.00 0.00
207.63 50.00 0.00 0.31 0.00 0.00
208.63 49.90 0.00 0.31 0.00 0.00
209.63 49.90 0.00 0.30 0.00 0.00
210.63 50.00 0.00 0.31 0.00 0.00
211.63 50.00 0.00 0.31 0.00 0.00
212.63 50.00 0.00 0.31 0.00 0.00
213.63 50.00 0.00 0.31 0.00 0.00
214.63 50.00 0.00 0.31 0.00 0.00
215.63 50.00 0.00 0.31 0.00 0.00
216.63 49.90 0.00 0.31 0.00 0.00
217.63 49.90 0.00 0.31 0.00 0.00
218.63 49.90 0.00 0.31 0.00 0.00
219.63 50.00 0.00 0.31 0.00 0.00
220.63 50.00 0.00 0.31 0.00 0.00
221.63 50.00 0.00 0.31 0.00 0.00
222.63 49.90 0.00 0.31 0.00 0.00
223.63 50.00 0.00 0.30 0.00 0.00
224.63 50.00 0.00 0.31 0.00 0.00
225.63 50.00 0.00 0.31 0.00 0.00
226.63 49.90 0.00 0.31 0.00 0.00
227.63 50.00 0.00 0.31 0.00 0.00
228.63 50.00 0.00 0.31 0.00 0.00
229.63 50.00 0.00 0.31 0.00 0.00
230.63 50.00 0.00 0.31 0.00 0.00
231.63 50.00 0.00 0.31 0.00 0.00
232.63 49.80 0.00 0.30 0.00 0.00
233.63 50.00 0.00 0.31 0.00 0.00
234.63 50.10 0.00 0.31 0.00 0.00
235.63 50.00 0.00 0.31 0.00 0.00
236.63 49.90 0.00 0.31 0.00 0.00
237.63 49.90 0.00 0.30 0.00 0.00
238.63 50.00 0.00 0.31 0.00 0.00
239.63 50.00 0.00 0.31 0.00 0.00
240.63 50.00 0.00 0.31 0.00 0.00
241.63 50.00 0.00 0.31 0.00 0.00
242.63 50.00 0.00 0.31 0.00 0.00

3

From another builder:

Yeah, unfortunately I don’t have configs to give you either, since I haven’t tested it with full power yet. It is possible to tune the saturation compensation, try 10% or 15%. You can also try to increase FOC observer gain. Some people had luck with 30->60.

Benjamin also noted in the VESC forum about their 75/300:

“One known issue with the 75/300 is that is measures the flux linkage too high on some motors. Try decreasing the flux linkage with 5 - 50% and see if it helps.”
https://foil.zone/t/has-anyone-successfully-used-the-flipsky-fsesc-75200-with-the-fs65161-motor/12052/8

4

Check the following:

5

I had a hard time finding that thread from the links. Found it here…

“VESC6 + 80100 troubleshooting”

6

Hard to tell what you config what the setting for the max battery amp
Motor/ batt/ duty : numbers work

You are battery amp stop right at 25A , flat line , nothing above , look like to me there a regulation there ( might be the initial problem ) so something regulates this , probably settings , voltage or max amp batt

Try to post a better batt settings or a screening shot of this

I hope you find a solution

7

We cranked up all the voltage, current, and RPM settings we could find. We also ran the “no_hw_limits” firmware. Here’s a screenshot showing our current limits (although we’ve change them 100 times).

sc02
sc021598×849 167 KB

8

And you actually wrote them to the VESC? Just checking. The VESC app is not the most logical to use. And what are your battery cutoff settings? Please check battery voltage during load and no load to evaluate battery sag and to verify that it can actually provide the amps you want.

9

Yup. We were careful to always upload the config before making changes, and then send the changes back to the VESC. Too many times to count. We tried a bunch of different battery cutoff values. But we typically just set them very low so they won’t be part of the equation. Also checked battery during load. No sag to speak of. We were drawing WAY less than the pack can deliver. We’re using 21700 cells in a 14S15P config.

1 Like
10

Maybe the only parameter we didn’t play with is the DRV8301 OC mode and adjustment. Now I’m thinking maybe we should disable that.

11

Did you try the saturation compensation, flux linkage and observer gain adjustment already?

12

We have not tried that. Just this morning I took notes on that. We’re gonna poke at it tomorrow, so perhaps we’ll do that. But I got the impression those parameters only impact FOC mode operation - yes? We’ve tested both BLDC and FOC, but we’re doing most of this in BLDC mode.

Both of my skateboards are sensored, and it frankly pains me a bit to be messing with non-sensored motors. I’m at the point that I just want to add brushes!

13

You can try to lower the switching frequency to 10mhz

Anyway in water on load , full throttle from start the batt current should be way over 25A

Settings look fine to me
Check if you get a good setting for the remote throttle 100%

Or the prop is way to big and yes the motor can loose synchro under load and will struggle to get a higher rpm

14

We have played with switching freq. No luck there. The remote is well calibrated. And I’m pretty sure the prop is a good match for the motor. If it were too big I would expect to see it pulling too much current - at least until is starts stuttering, but we never see more than about 50A motor current and 25A battery current.

15

Try to help , so sorry to ask

  • pic on the voltage screen ( settings for battery ) , vesc will limit duty ( so everything) if the voltage doesn’t match , happened to me
  • so remote well calibrated , run duty mode ( not current mode ) , simple to check things
  • does the motor off load in the air takes all its rpm or erpm ?

Trying to see if it settings problems or hardware problems or motor

At this level of power , for me no need to play with much settings for results , top speed , high amp yes …

And the last I can seen is that you run 3 battery and the 3 plugs , I should work on paper , but if voltage drop is not the same across each input … I am not a expert on vesc but most setup : 3 pugs in one , 3 battery in // , all on one input …

May be someone can you send via email , motor and app conf , upload , save with your setting of your remote calibration and worth to try (?)

16

Not at all. I appreciate everyone that’s been willing to look at it, ask about our setup, and offer tips.

vesc will limit duty ( so everything) if the voltage doesn’t match , happened to me

I’m not sure what you mean. Can you give me more details?

so remote well calibrated , run duty mode ( not current mode ) , simple to check things

We could certainly try that. Unfortunately we just wrapped up our pool experiments for the day. I have looked at both the receiver and the FSESC output on the scope. The receiver is running through the proper range of PWM, and the FSESC output and switching frequency also look correct with the motor unloaded. But when we approach a 50% duty cycle with the motor loaded, it just begins to sputter badly.

does the motor off load in the air takes all its rpm or erpm ?

Yes, when unloaded we’re getting the eRPM that would be expected for our motor and KV.

most setup : 3 pugs in one , 3 battery in // , all on one input …

Yes, when we originally went to set this thing up, we had no documentation. Folks on the forum told us those three inputs were in parallel - simply as a way to get more current into the FSESC. But just the other day, Flipsky responded and said all batteries should be in parallel and plug into one connector that breaks out into the three inputs. So that’s how we operated today - with no more luck.

May be someone can you send via email , motor and app conf

We’ve been begging for that from both the manufacturer and from others with similar setups. Flipsky won’t provide configs. One user did, but no luck there either. :frowning:

Today we finally gave up and decided to return it.

17

Freedom Boogie, That is bad news. What a bummer. I have that motor vesc combination as well but have not tried to power it up yet. Will try soon. Your experience is discouraging. Hopefully someone in the forum will figure out the answer. I have very limited experience with the VESC tool.

18

I was about to solder the wires together but now I will wait until someone has gotten it to work properly. I will try the Trampa 75.300. Others seem to have had success with that one. The Flipsky FSECS 75200 looks good and I like how the cooling tubes are built in and the entire thing is potted. For others… It is pretty high with the cooling block. You need a box at least 2.75" tall to fit it. I ordered too small.

19

This is the box I have. Sorry! Something went wrong! .
Good luck with Trampa.