Research Article
Adaptive Super-Twisting Observer for Estimation of Random Road Excitation Profile in Automotive Suspension Systems
Table 1
Road roughness values classified by ISO [
4,
5].
| | Degree of roughness | | Road class | Range | Geometric mean |
| | A (very good) | <8 | 4 | | B (good) | 8–32 | 16 | | C (average) | 32–128 | 64 | | D (poor) | 128–512 | 256 | | E (very poor) | 512–2048 | 1024 | | F | 2048–8192 | 4096 |
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