Electromechanical actuator for setting a collective offset for a helicopter on a blade-specific basis

US11745864B2 · kind B2 · utility

Assignee

• AIRBUS HELICOPTERS TECHNIK GMBH · DE

Inventors

• Steffen Hahn · Hann. Münden, DE
• Andre Hausberg · Kassel, DE
• Werner Pflüger · Kammerberg, DE
• Daniel Furst · Kassel, DE

Key dates

• Filing date: May 3, 2019
• Grant date: Sep 5, 2023
• Expiry date: Aug 28, 2040

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T50/30
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A system for controlling an electromechanical actuator for setting a collective offset for a helicopter on a blade-specific basis, wherein the system comprises at least one actuator, the length and position of which can be adjusted electromechanically within a mechanically limited range, a power electronics that is configured to adjust the actuator by means of a servomotor in two directions, specifically toward a positive collective offset or toward a negative collective offset, and a first microelectronics system that is configured to control the power electronics such that positive and negative collective offsets can be set. The system also includes a second microelectronics system, which is configured to override the actuation of the first microelectronics system in order to act on the adjustment of the actuator, and by a first control line, which is configured to activate or deactivate the second microelectronics system through an external electrical signal.