Position hold override control

US10351225B2 · kind B2 · utility

Assignee

• SIKORSKY AIRCRAFT CORPORATION · US

Inventors

• Steven E. Spoldi · Shelton, US
• Alex Faynberg · Cheshire, US
• Stephen Kubik · Newtown, US
• Donald T. Ream · North Palm Beach, US
• John Rucci · North Palm Beach, US
• Stephen C. McCulley · Stuart, US
• Christiaan Corry · North Palm Beach, US

Key dates

• Filing date: Mar 4, 2016
• Grant date: Jul 16, 2019
• Expiry date: May 2, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G05D1/0858
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A method for position hold override control of an aircraft includes determining, by a processor, that a position hold mode is enabled to hold the aircraft at a substantially fixed position with respect to a target. The processor receives a control input indicative of a commanded change in acceleration of the aircraft as an override of the position hold mode. The processor determines an acceleration command based on the commanded change in acceleration. The acceleration command is adjusted as an adjusted acceleration command responsive to a non-linear scheduled translational rate command based on feedback of a commanded velocity of the aircraft. An update to the commanded velocity of the aircraft is generated based on the adjusted acceleration command.