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.
Patent No.:
Date of Patent:
Jun. 02, 2015
Filed:
Aug. 19, 2013
Airbus Helicopters, Marignane, Cedex, FR;
Matthieu Connaulte, Eguilles, FR;
Christian Mercier, La Fare les Oliviers, FR;
Damien Mariotto, Lambesc, FR;
Airbus Helicopters, Marignane Cedex, FR;
Abstract
A method of assisting a pilot of a single-engined rotary wing aircraft () during a stage of flight in autorotation, said aircraft () including a hybrid power plant having an engine (), an electric machine (), and a main gearbox (). Said aircraft () also includes electrical energy storage means () and a main rotor () mechanically connected to said hybrid power plant (). According to said method, while in flight, the operation of said engine () is monitored in order to detect a failure thereof, in particular by monitoring for a drop of power on said main rotor (), and then in the event of a failure of said engine () being detected, said electric machine () is controlled to deliver auxiliary power Wto said main rotor (), thereby enabling the pilot of said aircraft () to be assisted in maneuvering said aircraft () during said stage of flight in autorotation following said failure.