Patent ID: 11919352
Assignee: FORD GLOBAL TECHNOLOGIES, LLC
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 10:
11. A method of optimizing a suspension system to avoid pitch resonance, the method comprising:
determining, by a processor/controller, pitch characteristics of a vehicle for a terrain profile and speed range via a model associated with the vehicle;
decoupling front and rear axles by removing pitch inertia from the model;
determining, by a processor/controller, optimized damping for a main damper of a position sensitive damper over a linear range of wheel travel in a bounce control zone based on the pitch characteristics;
recoupling the front and rear axles by adding the pitch inertia back into the model;
selecting a secondary damper associated with a compression zone or a secondary damper associated with a rebound zone as a selected damper for adjustment based on which of the front and rear axles is limiting;
performing a damping adjustment to the selected damper; and
cyclically repeating selecting the secondary damper and performing the damping adjustment until pitch resonance is suppressed.