A Method Determining the Dynamic Rollover Threshold of Commercial Vehicles Scania, Södertälje, Sweden Royal Institute of Technology, Stockholm

Format:

Book

Conference/Event

Author/Creator:

Dahlberg, Erik, author.

Conference Name:

International Truck and Bus Meeting & Exposition (2000-12-04 : Portland, Oregon, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2000

Summary:

Today, active dynamic control systems for commercial vehicles, offering improved safety, are frequently discussed. Yaw stabilising systems are based on theories from passenger car implementation, yet roll stabilisation - probably introduced in the near future - requires increased knowledge of rollover mechanics.Static analysis, providing steady state rollover threshold (SSRT), is the most common approach. Nevertheless in a rolling vehicle, kinetic energy is always present, deteriorating roll stability, invalidating the analysis. A simple method determining the dynamic rollover threshold (DRT) is therefore introduces in this paper.DRT is the worst case measure of roll instability: the conditions are necessary but not sufficient for rollover. Simulations using a validated model however, confirm theories: rollover occurs for the un-damped vehicle when a lateral acceleration step-input, equal to DRT, is introduced and at a little higher acceleration, still distinctly lower than SSRT, when dampers are included

Notes:

Vendor supplied data

Publisher Number:

2000-01-3492

Access Restriction:

Restricted for use by site license