Browse Publications Technical Papers 2006-01-0798
2006-04-03

A Theoretical Analysis Concerning the Influence of the Angle of Axes of Inertia on Vehicle Dynamics 2006-01-0798

The angle of vehicle principal axes of inertia is one of the basic properties of the vehicle. This paper presents the theoretical analysis concerning the influence of this property on vehicle dynamics.
First, we describe some preliminaries for analysis. Next, we calculate transfer functions from steer angle input to roll angle and yaw rate, so we understand that these transfer functions are influenced by the angle of principal axes of inertia. For example, when roll axis of inertia is forward and down, the gain of transfer functions from steering angle to roll angle and yaw rate and roll are respectively down in high frequency range (2-5Hz). Next, we make theoretical analysis of this phenomenon to this transfer function by two methods. One is the direct analysis of details of transfer function, and other is the analysis by separating transfer functions into two transfer functions making use of roll and yaw moment around center of gravity.
We investigate how the angle of the principal axes of inertia influences in each analysis. As a result, it is clarified that the numerator polynomial of the transfer function has a large influence in the first analysis. In second analysis, we clarify that the influence of transfer function from yaw and roll moment to yaw rate and roll angle is large.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Preview Document Add to Cart
Members save up to 16% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

A Comparison of the Controlled Rollover Impact System (CRIS) with the J2114 Rollover Dolly

2002-01-0694

View Details

TECHNICAL PAPER

Dynamics of the Automobile Related to Driver Control

680194

View Details

TECHNICAL PAPER

Archetypal Vehicle Dynamics Model for Resistance Rollover Prediction

2010-01-0715

View Details

X