GOODRICH ACTUATION SYSTEMS LIMITED

Design and control of electromechanical or hydraulic actuators for moving aircraft components like wing tips, control surfaces, or landing gear, often focusing on efficiency, redundancy, or specific operational profiles.

Methods and components for converting power into mechanical motion to drive pump mechanisms, encompassing electric motors, hydraulic actuators, and specialized motion converters like ball screws or solenoids.

Mechanisms that convert rotational input (typically from an electric motor) into precise linear output motion, often employing screw-nut assemblies, ball screws, or cam-follower systems for various applications.

Novel configurations and materials for gears and drivetrain components, including specialized profiles, self-aligning features, damping elements, and complex gear train arrangements like planetary, cycloidal, or strain wave gearing.

Systems and methods for ensuring robust and reliable aircraft control, often involving multiple control computers, adaptive control laws, or sophisticated pilot input interfaces, especially in the presence of failures or environmental disturbances.

Systems and methods for controlling electric parking brakes, including their actuators, redundancy features, and diagnostic capabilities for ensuring reliable operation.

Innovations in aircraft airframe design, material usage, and aerodynamic surfaces to improve performance characteristics such as weight, rigidity, short take-off/landing capabilities, or stall resistance.

Methods and circuits for controlling the power electronic converters (inverters, bridges) that supply current and voltage to electric motors, including switching strategies, voltage command generation, and multi-phase configurations.

Methods and systems for identifying anomalies, failures, or impending issues within electric motors or their associated drive and power management circuits, often by monitoring electrical or operational parameters.

Actuators, control, and components for converting electrical energy into braking force, often involving motors, spindles, and friction elements, particularly for vehicle applications.

Systems and methods utilizing sensors and control logic to detect, measure, and report the wear status of brake components, enabling predictive maintenance or safety alerts.

Methods and devices that determine the position, angle, or distance of an object by detecting changes in magnetic fields or inductive coupling.

Strategies and circuits for optimizing the supply and consumption of electrical power for motors, including current limiting, regenerative energy handling, battery integration, and managing power quality.

Integration of electric motors, power generation, and distribution systems for propelling aircraft, including components for coupling motors to propellers and managing electrical power.

Components and designs focused on preventing ingress of contaminants (e.g., dirt, water) or egress of lubricants from bearing systems, often using elastic seals, shields, or labyrinth structures.

Focuses on novel circuit configurations for DC-DC, DC-AC, or AC-DC conversion, often involving resonant operation, multi-level structures, or switched capacitors to improve efficiency, power density, or voltage conversion ratios.

Technologies for detecting operational parameters, monitoring component health, and diagnosing malfunctions in aircraft using various sensors and data analysis, often employing AI/ML.

Design and integration of bearings within larger mechanical systems or devices, focusing on mounting structures, housing, endplay management, and overall assembly for specific applications.

Techniques for determining the rotor position, speed, or other operational parameters of an electric motor without dedicated physical sensors, often relying on back-EMF, current, or voltage measurements.

Transmissions designed to provide a continuous range of gear ratios between fixed limits, often employing ball-planetary, toroidal, or belt-pulley mechanisms, and including their control systems for stable operation in various directions.

Sophisticated software or hardware-implemented control strategies that optimize motor performance, such as precise speed/torque regulation, vibration reduction, or efficiency, often using model-based, predictive, or adaptive techniques.

Software-driven control strategies, sensor integration, and diagnostic methods for enhancing braking performance, driver assistance systems (ADAS), and autonomous vehicle braking functions.

Bearings that utilize a pressurized gas or liquid film to create a non-contact support surface, reducing friction and wear, often incorporating specific flow restriction or airfoil designs.