Vehicle Platoon String Stability: Network Passivity Approach
Why this work is in the frame
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Bibliographic record
Abstract
Control of large interconnected systems with different interconnection topologies has primarily been tackled using decentralized control. An implementation of decentralized control is in string stability of interconnected systems with applications to vehicle following. In this paper, the use of passivity formalism as a means to analyse string stability in vehicle platoons is proposed. In order to employ passivity, network theory is used to model the interconnection topology of the vehicle platoon system. A bidirectional vehicle platoon, modelled by linear dynamics under constant distance spacing, employing linear controllers is used as a case study. With this in mind, we show that any arbitrary length bidirectional platoon can be modelled as a combination of a cascade of two-port networks coupled to a one-port network. Consequently, the stability of the coupled system can be analysed using passivity theory. The work is supported by theoretical and numerical analysis.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it