Over the last decades, automated clutches have become an inherent part in many modern powertrain concepts. Different kinds and variations of automated clutches exist. They all have the same objective, namely, to transfer (all or part of) the power of the drive unit to the power train. Hence, the clutch has a key function in the power flow in the powertrain and influences significantly important criteria like the driving comfort, the shift duration and the load on the components. Due to this, a high performance of the clutch control is demanded. Different concepts for launch and shift control exist. Examples are decoupling Pl-control, observer-based sliding-mode control and model predictive control. The present paper provides an overview of the control concepts of automated clutches that have been proposed in the literature. First, the concepts are categorized corresponding to some essential differentiation criteria (e.g. decoupling instead of multivariable control). Second, the control strategies are classified according their present application status (simulation or practical experiments). Finally, the considered control concepts are investigated in view of their practical applicability and further special characteristics (e.g. robustness relating to unknown system states and parameters). In summary, the present paper gives a comprehensive overview of previous developments and research results in the field of the control of automated clutches and a discussion of their resulting potential.
Concepts for control of automated clutches in theory and practice
2013
14 Seiten, 3 Bilder, 34 Quellen
Aufsatz (Konferenz)
Englisch
Concepts for control of automated clutches in theory and practice
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