Modeling of a hydraulic engine mount for active pneumatic engine vibration control using the extended Kalman filter

The attenuation of engine vibration transmitted to a chassis has been a major focus in the automotive community for the increase of comfort for the driver and passengers. A hydro-mount system is designed to reduce the transmission of engine vibration to the chassis. It is also used for supporting the static load by an engine weight. In this paper, we present a modeling and parameter estimation of hydro-mount systems. Nonlinear model aspects are developed and used with experimental data to validate the model response characteristics. These parameters will be modeled as a variable vector and its value is estimated via linearized and extended Kalman filter. This approach can help engineers reduce design time by providing insight into the effects of various parameters within the hydro-mount. Based on the estimated parameters, the simulation result confirmed that the derived passive model describes the dynamic behavior of the hydro-mount system accurately. This paper was recommended for publication in revised form by Associate Editor Shuzhi Sam Ge Arjon Turnip received his B.S. and M.S. degrees in Engineering Physics from the Institute of Technology Bandung, Indonesia, in 1998 and 2003, respectively. He is currently a Ph.D. program student in the School of Mechanical Engineering, Pusan National University, Korea. His research areas are integrated vehicle control, adaptive control, and estimation theory. Keum-Shik Hong received the B.S. degree in mechanical design and production engineering from Seoul National University in 1979, the M.S. degree in ME from Columbia University in 1987, and both the M.S. degree in applied mathematics and the Ph.D. degree in ME from the University of Illinois at Urbana-Champaign in 1991. He served as an Associate Editor for Automatica (2000–2006) and as an Editor for the International Journal of Control, Automation, and Systems (2003–2005). Dr. Hong received Fumio Harashima Mechatronics Award in 2003 and the Korean Government Presidential Award in 2007. Dr. Hong’s research interests include nonlinear systems theory, adaptive control, distributed parameter system control, robotics, and vehicle controls. Seonghun Park received his B.S. and M.S. degrees in mechanical engineering from KAIST in 1994 and 1996, respectively, and his Ph.D. degree from Columbia University in 2005. Dr. Park is currently a professor of mechanical engineering at Pusan National University, Korea. His research interests are in the areas of control, tribology, and biomechanics.