Modeling and Model Analysis of a Full-Car Fitted with an Anti-Pitch Anti-Roll Hydraulically Interconnected Suspension

Paper #:
  • 2014-01-0849

Published:
  • 2014-04-01
Citation:
Shao, X., "Modeling and Model Analysis of a Full-Car Fitted with an Anti-Pitch Anti-Roll Hydraulically Interconnected Suspension," SAE Technical Paper 2014-01-0849, 2014, https://doi.org/10.4271/2014-01-0849.
Author(s):
Affiliated:
Pages:
8
Abstract:
In this paper, a passive anti-pitch anti-roll hydraulically interconnected suspension is proposed for compromising the control between the pitch and roll mode of the sprung mass. It has the advantage in improving the directional stability and handling quality of vehicles during steering and braking manoeuvres. Frequency domain analysis of a 7-DOF full-car model with the proposed system is presented. The modeling of mechanical subsystem is established based on the Newton's second law. Then the mechanical-hydraulic system boundary conditions are developed by incorporating the hydraulic strut forces into the mechanical subsystem as externally applied forces. The hydraulic subsystem is modelled by using the impedance method, and each circuit are determined by the transfer matrix method. And then the modal analysis method is employed to perform the vibration analysis between the vehicle with the conventional suspension and the proposed HIS. Comparison analysis focuses on natural frequencies and modal shapes with identified eigenvalues and eigenvectors. Experiment setup has been introduced in this paper, The present result offer confirmation that the effectiveness of the anti-pitch anti-roll HIS system in increasing the pitch stiffness and roll stiffness and simultaneously maintaining the bounce stiffness.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$27.00
Mail
$27.00
Members save up to 40% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Technical Paper / Journal Article
2010-10-19
Technical Paper / Journal Article
2010-09-28
Technical Paper / Journal Article
2010-09-28
Technical Paper / Journal Article
2010-10-25