Vibration Isolation Control for Hydraulic Hybrid Vehicles

In recent decades, many types of hybrid vehicles have been developed to compensate for the limited sources of oil and gas production. Gasoline-electric hybrid technology shows a significant improvement in fuel efficiency for small and medium-sized passenger vehicles. However, that hybrid type is not economically beneficial for larger vehicles due to large, harmful and expensive battery packs. Hydraulic hybrid technology has been found effective for heavy duty vehicle because of its high power density. Other advantages of hydraulic hybrid are the lower cost and environmental friendliness over the electric batteries. The potential achievement in fuel efficiency has been proved in several studies and experiments by different schools, institutes and laboratories. The only problems preventing this hydraulic hybrid technology going to the market are noise and vibration involving with the hydraulic system. This study focuses on using magnetorheological (MR) technology to reduce the noise and vibration transmissibility from the hydraulic system to the vehicle body. MR technology has been well-known with automotive applications such as engine mounts, vehicle's main suspension system. In order to study the nature of the problem, structure of a hydraulic hybrid vehicle in series design is analyzed. The operational characteristics of the powertrain are carefully studied, and the vibration data is formulated. This research shows that not only MR elements play an important role in vibration suppression, but also the geometrical configurations of the mounting systems affect the efficiency in noise and vibration isolation. To this end, simulation results are also used to determine the most effective control method for the MR mounts.Copyright © 2006 by ASME

[1]  Kosuke Nagaya,et al.  Vibration suppression of plate using linear MR fluid passive damper , 2004 .

[2]  Robyn A. Jackey,et al.  Physical System Model of a Hydraulic Energy Storage Device for Hybrid Powertrain Applications , 2005 .

[3]  C. L. Gray,et al.  An HCCI Engine: Power Plant for a Hybrid Vehicle , 2004 .

[4]  Shirley J. Dyke,et al.  PHENOMENOLOGICAL MODEL FOR MAGNETORHEOLOGICAL DAMPERS , 1997 .

[5]  F. A. Wyczalek.  Hybrid electric vehicles: year 2000 status , 2001 .

[6]  Young Kong Ahn,et al.  A Small-sized Variable-damping Mount using Magnetorheological Fluid , 2005 .

[7]  Mehdi Ahmadian.  On the development of fuzzy skyhook control for semiactive magneto-rheological systems , 2005, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[8]  R. P. Kepner.  Hydraulic Power Assist − A Demonstration of Hydraulic Hybrid Vehicle Regenerative Braking in a Road Vehicle Application , 2002 .

[9]  Young Kong Ahn,et al.  On the design and development of a magneto-rheological mount , 1999 .

[10]  Young-Pil Park,et al.  H8 Control Performance of a Full-Vehicle Suspension Featuring Magnetorheological Dampers , 2002 .

[11]  Menahem Anderman,et al.  The challenge to fulfill electrical power requirements of advanced vehicles , 2004 .

[12]  K A Edge.  Designing quieter hydraulic systems - some recent developments and contributions (Invited keynote paper) , 1999 .

[13]  K A Edge,et al.  DESIGNING QUIETER HYDRAULIC SYSTEMSSOME RECENT DEVELOPMENTS AND CONTRIBUTIONS , 1999 .

[14]  S. Ikeo,et al.  Study on Hybrid Vehicle Using Constant Pressure Hydraulic System with Flywheel for Energy Storage , 2004 .

[15]  Keith A. Williams,et al.  Torsional vibration control with an MR fluid brake , 2005, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[16]  Mark J. Schulz,et al.  A Magnetorheological Semi-Active Isolator to Reduce Noise and Vibration Transmissibility in Automobiles , 2003 .

[17]  Jacek S. Stecki,et al.  Development and Simulation of a Hydraulic-Hybrid Powertrain for use in Commercial Heavy Vehicles , 2003 .

[18]  Young Kong Ahn,et al.  Performance Analysis of Magneto-Rheological Mounts , 1999 .

[19]  Osamu Yoshida,et al.  Seismic Control of a Nonlinear Benchmark Building using Smart Dampers , 2004 .