What should I adjust the PID when the traversing machine trembles? Analysis of hot topics on the Internet in the past 10 days
Recently, the problem of PID parameter adjustment of FPV Drone has become a hot topic in major forums and social platforms, especially for the fault phenomenon of "body shaking during flight". This article will combine the hot discussions on the entire network in the past 10 days, structurally analyze the core logic of PID parameter adjustment, and provide data-based solutions.
1. Background of hot topics
According to monitoring data from social media and technology forums, the number of discussions on topics related to "travel machine shaking" has increased significantly in the past 10 days. The following is the popularity distribution:
| platform | Amount of discussions (articles) | core keywords |
|---|---|---|
| Station B | 1,200+ | PID dithering and filtering settings |
| Zhihu | 850+ | Parameter optimization, motor heating |
| Facebook group | 600+ | Betaflight parameter adjustment |
2. The relationship between PID parameters and shaking
Traversing machine shaking is usually related to the imbalance of three parameters in the PID controller:
| parameters | function | Hypersymptoms | Hyposymptoms |
|---|---|---|---|
| P (proportion) | Response speed | high frequency oscillation | Unresponsive |
| I (points) | Eliminate static difference | Continuous jitter | Unstable drift |
| D(differential) | suppress overshoot | Motor is hot | Overshoot is obvious |
3. Participate in the actual combat plan
Based on the cases shared by Feishou in hot discussions, the following debugging steps are recommended:
1.Basic testing: First eliminate hardware problems (such as blade deformation, motor shaft eccentricity).
2.P value takes precedence: Reduce the P value in steps of 5% until the high-frequency oscillation disappears.
3.D value follow up: Increase the D value to suppress residual jitter, but the motor temperature needs to be monitored.
4.I value fine-tuning:Finally adjust the I value to solve the long-term drift problem.
4. Popular configuration reference
Typical PID configuration of 5-inch traversing machine extracted from 200+ popular posts:
| parts | Roll axis | Pitch axis | Yaw axis |
|---|---|---|---|
| P value | 45-55 | 50-60 | 60-70 |
| I value | 40-50 | 45-55 | 50-60 |
| D value | 20-30 | 25-35 | 15-25 |
5. Advanced skills
The recently discussed new features of Betaflight 4.4:
-dynamic filtering: Automatically adapt to different flight scenarios
-RPM filter: Effectively reduce motor resonance
-FF (feed forward): New solution to reduce PID dependence
Summary: 80% of the trembling problem of the traversing aircraft can be solved through PID parameter adjustment, but it needs to be comprehensively judged based on the hardware status and flight environment. It is recommended that pilots collect the reference data in this article and record the parameter change curves during actual debugging.
check the details
check the details
en
