Integrated Flight Control and AHR for Low-SWaP UAM Vehicles

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Solution Overview

Problem

Urban air mobility (UAM) vehicles face challenges in implementing flight control and attitude/heading reference systems due to the size, weight, power, and cost (SWaP-C) constraints, as the discrete systems used in larger aircraft are too large and power-hungry for UAM vehicles.

Innovation Solution

An integrated travel control and attitude/heading reference system is developed, utilizing separate processing circuitry for travel control and attitude/heading determination, with a common interface and optional shared power supply, to reduce SWaP-C and improve power efficiency, incorporating inertial and position data from IMUs and GNSS receivers for accurate attitude and heading calculations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If discrete flight control and attitude/heading reference systems are used in UAM vehicles, then flight control functionality is provided, but the system size and weight become too large for UAM vehicles

Engineering Contradiction:
Improveflight control functionalityVSAvoidsystem weight
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The patent combines discrete flight control systems and attitude/heading reference systems into a single integrated system. The processor executes both flight control algorithms and attitude determination algorithms, merging previously separate functional blocks into one unified system that reduces overall weight while maintaining all necessary flight control capabilities.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated system performs multiple functions simultaneously - it processes inertial data for attitude determination, generates flight control commands, and manages vehicle propulsion and navigation. This multi-functional approach eliminates the need for separate dedicated systems, thereby reducing weight without compromising flight control reliability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If discrete flight control and attitude/heading reference systems are used in UAM vehicles, then flight control functionality is provided, but the system power consumption exceeds available power supply

Engineering Contradiction:
Improveflight control functionalityVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent merges discrete flight control and attitude reference systems into one integrated processor that shares computational resources. By consolidating power-consuming components into a single system, the overall power consumption is reduced while maintaining full flight control functionality.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated processor performs multiple functions including attitude determination, flight control, and navigation using shared computational resources. This multi-functionality reduces redundant power consumption that would occur in separate discrete systems.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If discrete flight control and attitude/heading reference systems are used in UAM vehicles, then flight control functionality is provided, but the system cost increases

Engineering Contradiction:
Improveflight control functionalityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple discrete systems into a single integrated flight control system, reducing the total number of components, interfaces, and integration requirements. This merging simplifies the overall system architecture and reduces development, testing, and certification costs.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated system performs multiple functions through shared processors and sensors, reducing the need for redundant components across separate systems. This consolidation lowers overall system complexity and associated costs while maintaining comprehensive flight control capabilities.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS11874673B2Integrated travel control and attitude heading reference system
Publication Date: 2024.01.16 HONEYWELL INTERNATIONAL INC
  • US11874673B2 patent drawing
  • US11874673B2 patent drawing

AI summary

Techniques for integrating a travel control system and attitude and heading (AHR) system in a vehicle are disclosed. The integrated system includes interface circuitry that enables data communication between constituent travel control system and AHR system of the integrated system, and can further communicate data between the travel control system and/or the AHR system and other system(s) or device(s) in or on the vehicle. In some embodiments, the travel control system includes processing circuitry that is fault tolerant. Alternatively, or additionally, the AHR system may include processing circuitry that has a processing power greater than the travel control system processing circuitry.