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An Automated Model-Order Reduction Method for Automatic Transmissions (CROSBI ID 238899)

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Ranogajec, Vanja ; Deur, Joško An Automated Model-Order Reduction Method for Automatic Transmissions // Journal of dynamic systems, measurement, and control, 139 (2017), 7; 071004-1-071004-7. doi: 10.1115/1.4035607

Podaci o odgovornosti

Ranogajec, Vanja ; Deur, Joško

engleski

An Automated Model-Order Reduction Method for Automatic Transmissions

New generation of torque converter automatic transmissions (AT) includes a large number of gears for improved fuel economy and vehicle performance, which leads to exponentially increasing number of shift types and shift events. In order to facilitate various numerical/simulation analyses of AT dynamics, shift control optimization, and control strategy design, a full-order AT model is usually reduced by eliminating state variables related to locked clutches in particular gears or shifts. The paper proposes an automated model-order reduction method for an arbitrary, user-specified clutch state, and demonstrates its application on an example of ten-speed AT. The method is based on determining the locked- clutch torque variables and their substitution into the full-order state-space model input vector, as well as finding a linear relation between the reduced-order and full-order model state-space variables.

Automatic transmissions, Mathematical model, Automated modeling, Model order reduction

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Podaci o izdanju

139 (7)

2017.

071004-1-071004-7

objavljeno

0022-0434

10.1115/1.4035607

Povezanost rada

Strojarstvo

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