Table 5 The error data analysis of fuzzy PID control and LADRC control of tillage depth.
No. | Control method | Working speed/km·h–1 | Target tillage depth/mm | Max absolute error/mm | Mean absolute error/mm | Standard deviation of the absolute error/mm |
|---|---|---|---|---|---|---|
1 | Fuzzy PID | 0.5 | 80 | 20.1 | 9.7 | 13.3 |
2 | LADRC | 0.5 | 80 | 10.1 | 4.1 | 4.9 |
3 | Fuzzy PID | 0.5 | 100 | 18.2 | 8.0 | 9.3 |
4 | LADRC | 0.5 | 100 | 7.9 | 2.7 | 3.4 |
5 | Fuzzy PID | 0.8 | 80 | 12.7 | 5.7 | 7.2 |
6 | LADRC | 0.8 | 80 | 6.9 | 2.5 | 3.0 |
7 | Fuzzy PID | 0.8 | 100 | 9.8 | 3.8 | 4.5 |
8 | LADRC | 0.8 | 100 | 6.5 | 2.2 | 2.8 |
