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. 07, 2023

Filed:

Dec. 10, 2019
Applicant:

Pratt & Whitney Canada Corp., Longueuil, CA;

Inventors:

Michael Mark, Montreal, CA;

Richard Ullyott, Montreal, CA;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08G 5/00 (2006.01); B64D 27/24 (2006.01); G08G 5/04 (2006.01); B64D 27/02 (2006.01);
U.S. Cl.
CPC ...
G08G 5/0039 (2013.01); B64D 27/24 (2013.01); G08G 5/0021 (2013.01); G08G 5/0056 (2013.01); G08G 5/045 (2013.01); B64D 2027/026 (2013.01);
Abstract

An aircraft navigational system for a multiengine aircraft can include a flight planning module configured to receive two or more navigational points defining a route and determine if a first degraded operation ceiling is high enough to travel along the route based on obstacle data defining relative location of one or more obstacles and one or more obstacle clearance standards. The module can be configured to receive a status and/or performance limitation of an electric motor system of the aircraft. The module can be configured to determine if the electric motor system is or will be able to provide temporary additional power to produce a second degraded operation ceiling for at least a required time based on the status and/or performance limitation of the electric motor system if the first degraded operation ceiling is not high enough to permit travel along the route. The second degraded operation ceiling can be high enough to travel along the route based on the obstacle data and the one or more obstacle clearance standards.


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