On Driftless Systems with m controls and 2m or 2m-1 states that are Flat by Pure Prolongation
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arXiv
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866908639195824128 |
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| author | Lévine, Jean Franch, Jaume |
| author_facet | Lévine, Jean Franch, Jaume |
| contents | It is widely recognized that no tractable necessary and sufficient conditions exist for determining whether a system is, in general, differentially flat. However, specific cases do provide such conditions. For instance, driftless systems with two inputs have known necessary and sufficient conditions. For driftless systems with three or more inputs, the available conditions are only sufficient. This paper presents new findings on determining whether a system with m inputs and $2m$ or $2m-1$ states is flat by pure prolongation, a specific subclass of differential flatness. While this condition is more restrictive than general differential flatness, the algorithm for computing flat outputs remains remarkably simple, and the verification requirements are relatively lenient. Moreover, the conditions proposed in this work broaden the class of systems recognized as differentially flat, as our sufficient condition differs from existing criteria. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_06511 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | On Driftless Systems with m controls and 2m or 2m-1 states that are Flat by Pure Prolongation Lévine, Jean Franch, Jaume Optimization and Control Systems and Control Differential Geometry It is widely recognized that no tractable necessary and sufficient conditions exist for determining whether a system is, in general, differentially flat. However, specific cases do provide such conditions. For instance, driftless systems with two inputs have known necessary and sufficient conditions. For driftless systems with three or more inputs, the available conditions are only sufficient. This paper presents new findings on determining whether a system with m inputs and $2m$ or $2m-1$ states is flat by pure prolongation, a specific subclass of differential flatness. While this condition is more restrictive than general differential flatness, the algorithm for computing flat outputs remains remarkably simple, and the verification requirements are relatively lenient. Moreover, the conditions proposed in this work broaden the class of systems recognized as differentially flat, as our sufficient condition differs from existing criteria. |
| title | On Driftless Systems with m controls and 2m or 2m-1 states that are Flat by Pure Prolongation |
| topic | Optimization and Control Systems and Control Differential Geometry |
| url | https://arxiv.org/abs/2511.06511 |