The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 25, 2020

Filed:

Aug. 17, 2018
Applicant:

The Boeing Company, Chicago, IL (US);

Inventors:

Terrence S. Birchette, Chandler, AZ (US);

Akif O. Bolukbasi, Mesa, AZ (US);

Assignee:

THE BOEING COMPANY, Chicago, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64C 25/60 (2006.01); B64C 25/58 (2006.01); B64D 45/00 (2006.01);
U.S. Cl.
CPC ...
B64C 25/60 (2013.01); B64C 25/58 (2013.01); B64D 45/00 (2013.01);
Abstract

An active landing gear damping system and method for decelerating a vehicle during a terrain impact event, such as an aircraft landing or crash. The system monitors aircraft state data and terrain information to predict an impact of the vehicle with the terrain. The system can then determine a target damper force for each landing gear of the vehicle and a predicted damper velocity at the time of impact. Each landing gear can include an adjustable damper valve, wherein adjustment of the damper valves varies the damping coefficient of the respective dampers. The system can adjust valves of the respective dampers to provide the target force based on the predicted damper velocity. After an impact begins, the system can continuously monitor and adjust the valve to maintain the target force.


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