Steering Grunt Noise Robustness Improvement Ford Motor Company

Format:

Conference/Event

Author/Creator:

McWilliams, John, author.

Conference Name:

SAE 2009 Noise and Vibration Conference and Exhibition (2009-05-19 : St. Charles, Illinois, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2009

Summary:

Grunt is a structure-born noise caused by resonance of the steering gear torsion bar (T-bar) in an HPAS (Hydraulic Power Assist Steering) system. The goal of this work was to develop techniques to quantify and predict grunt in a RV (rotary valve) steering gear system. First, vehicle testing was used to identify an objective metric for grunt: y = dynamic pressure in the return line. Then, a computer simulation was developed to predict y as a function of two known control factors. The simulation results were correlated to measurements on a test vehicle. Finally, the simulation was expanded to include two additional control factors, and grunt predictions were demonstrated on a different test vehicle

Notes:

Vendor supplied data

Publisher Number:

2009-01-2095

Access Restriction:

Restricted for use by site license