Modeling and tracking control of a hydrostatic dynamometer

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations


Traditionally automotive powertrain research and development have been conducted with electromagnetic dynamometers. The ever increasing demand for reducing fuel consumption and emissions has driven the innovation of new technologies in engines, transmissions, and hybrid systems, which in turn requires significant flexibilities and transient capabilities of the dynamometer. Given its superior power density, hydrostatic dynamometer is an ideal candidate for the next generation transient dynamometers. This paper presents the design, modeling, and control of a hydrostatic dynamometer as a precise torque device that could control the amount of torque supplied in real-time under both steady state and transient operations. The mathematical models are constructed for the system. Based on the analysis and simulation of the dynamic model, the dynamometer is decoupled into two subsystems. For the power output control subsystem, a nonlinear tracking controller based on feedback linearization and internal model principle is designed; for the operating pressure control subsystem, a PID regulator is designed. Simulation results in AMESim environment demonstrate the fast dynamic response and precise tracking capability of the proposed control system.

Original languageEnglish (US)
Title of host publication2009 American Control Conference, ACC 2009
Number of pages6
StatePublished - Nov 23 2009
Event2009 American Control Conference, ACC 2009 - St. Louis, MO, United States
Duration: Jun 10 2009Jun 12 2009

Publication series

NameProceedings of the American Control Conference
ISSN (Print)0743-1619


Other2009 American Control Conference, ACC 2009
CountryUnited States
CitySt. Louis, MO

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