US 7,512,520 B2
Method for logging the performance of a vehicle suspension system
Roger Philip Sack, Mt. Tamborine (Australia); and Peter James Doust, Eastwood (Australia)
Assigned to Tramanco Pty Ltd., Rocklea, Queensland (Australia)
Appl. No. 10/563,032
PCT Filed Aug. 19, 2004, PCT No. PCT/AU2004/001107
§ 371(c)(1), (2), (4) Date May 11, 2006,
PCT Pub. No. WO2005/016723, PCT Pub. Date Feb. 24, 2005.
Claims priority of application No. 2003904423 (AU), filed on Aug. 19, 2003.
Prior Publication US 2006/0259220 A1, Nov. 16, 2006
Int. Cl. B62D 55/104 (2006.01); G06F 17/40 (2006.01)
U.S. Cl. 702—182  [702/173; 702/187; 701/37] 24 Claims
OG exemplary drawing
 
1. A method for logging the performance of a vehicle suspension system by testing dynamic performance of at least one vehicle suspension system component, the method including the steps of:
a. measuring the dynamic excursion of mass of an impulsive load with an electronic weighing system in response to a unit impulsive load, wherein the electronic weighing system is mounted onboard the vehicle and monitors the at least one suspension system component, and
b. measuring an oscillation frequency of said at least one vehicle suspension system component in response to said unit impulsive load, and
c. determining the dampening ratio of the at least one vehicle suspension system component using the dynamic excursions of mass, and the maximum oscillation frequency of the at least one vehicle suspension system component.