Construct · 1 fields · 1 citations

sliding mode: a standalone construct

One name. One construct. A landmark on the map.

● anchor · standalone: control theory Nearest construct by meaning·not indexed
slidingmode1 CONSTRUCTSliding-mode controlUTKIN · 1977

A single standalone construct; nearby constructs are located against it in the Collider. Tap a field for its definition, unit, and measures.

Control engineering

Switch the control fast to pin the state onto a surface

Sliding-mode control is a variable-structure method in which the control law switches rapidly to drive the system's state onto a chosen surface in state space and then hold it there, so that once on the surface the motion is governed by the surface's own reduced dynamics and becomes insensitive to a wide class of disturbances and model errors. Utkin's 1977 Variable Structure Systems with Sliding Modes gave the foundational theory, including the reaching condition and the equivalent-control description of motion on the surface. Its signature strength is robustness to matched uncertainty; its signature cost is chattering, the high-frequency switching that excites unmodelled dynamics.[1]

Unit
The sliding surface in state space and the switching law that enforces it
Recovery means
Not applicable
Measured by
Characterised by the reaching time to the sliding surface, robustness to matched disturbance, and the degree of switching chatter

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Nearby constructs

class3 fields · 3 citationsjingle · one word, three constructscondition2 fields · 2 citationsjingle · one word, two constructscontrol4 fields · 5 citationsjingle · one word, four constructs

References

  1. Utkin, V. (1977). Variable structure systems with sliding modes. IEEE Transactions on Automatic Control, 22(2), 212–222. https://doi.org/10.1109/TAC.1977.1101446

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