Research Article
Modelling and Analysis of Automobile Vibration System Based on Fuzzy Theory under Different Road Excitation Information
Table 3
The root mean square value of acceleration.
| Input | Speed | Control mode | Body vertical acceleration | Pitching angular acceleration | Rolling angular acceleration |
| White noise excitation | 20 m/s | Passive | 0.3800 | 0.2075 | 0.4937 | PID | 0.2862 | 0.1720 | 0.4462 | Fuzzy | 0.3031 | 0.1700 | 0.4237 | Fuzzy-PID | 0.2374 | 0.1475 | 0.3640 | 30 m/s | Passive | 0.5383 | 0.2232 | 0.4247 | PID | 0.4205 | 0.1936 | 0.3828 | Fuzzy | 0.3987 | 0.1819 | 0.3217 | Fuzzy-PID | 0.3344 | 0.1673 | 0.2938 |
| The sinusoidal excitation | 20 m/s | Passive | 1.1386 | 0.5525 | 0.1858 | PID | 0.7232 | 0.3722 | 0.0938 | Fuzzy | 0.7950 | 0.3734 | 0.1159 | Fuzzy-PID | 0.4983 | 0.2891 | 0.0892 | 30 m/s | Passive | 1.2356 | 0.2857 | 0.2111 | PID | 0.7881 | 0.2055 | 0.1111 | Fuzzy | 0.8587 | 0.2113 | 0.1225 | Fuzzy-PID | 0.6001 | 0.1653 | 0.1189 |
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