Integrated Wheel Speed Sensor with Local Processing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The distribution of avionic systems in aircraft, particularly the wheel braking and landing gear monitoring systems, is not optimized as processing operations are often performed far from the wheels, leading to inefficient use of distributed architectures and increased cable usage.
Innovation Solution
A device for measuring wheel rotation speed is integrated with a rotor, stator, and electronic card that processes the measurement voltage locally, eliminating the need for a power supply cable and allowing for single-data cable connection, thereby improving the distribution of processing operations closer to the wheels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If processing operations are performed remotely from the wheels using centralized architectures, then system complexity is reduced at the wheel level, but cable quantity increases and distribution efficiency deteriorates
Solution Approach 1:
The patent combines the measurement sensor, processing electronics, and power generation components into an integrated wheel assembly. The electronic card is mounted directly on the wheel hub, merging functions that were previously separated between the wheel and remote computing systems, thereby eliminating the need for additional power and data cables.
Solution Approach 2:
The wheel assembly generates its own power through the electromagnetic induction system (rotor with permanent magnets and stator with windings) and processes its own measurement data locally using the electronic card. This self-sufficient design eliminates dependence on external power cables and centralized processing, allowing the wheel to operate independently while improving system distribution efficiency.
2Productivity
If processing operations are performed locally at the wheels using distributed architectures, then distribution efficiency is improved, but device complexity at the wheel level increases
Solution Approach 1:
The electronic card performs multiple functions including signal processing, data acquisition, and potentially communication, consolidating what would otherwise require multiple separate components. The rotor-stator assembly serves both as a sensor for measuring wheel parameters and as a power generation system, reducing the need for additional dedicated components.
Solution Approach 2:
The system transforms mechanical parameters (wheel rotation, speed, temperature, pressure) into electrical signals through electromagnetic induction and sensor elements. This parameter transformation enables local processing of physical measurements into actionable data without requiring complex mechanical processing mechanisms at the wheel level.
3Extent of automation
If power supply cables are added to support local processing at the wheels, then processing capability is improved, but cable load on the aircraft increases
Solution Approach 1:
The wheel assembly generates its own electrical power through electromagnetic induction between the rotor (with permanent magnets) and stator (with windings). This self-generated power supplies the electronic card and other wheel-mounted components, completely eliminating the need for external power supply cables to the wheels.
Solution Approach 2:
The power generation system is integrated directly into the wheel assembly, merging the functions of power supply and measurement sensing into a single unified system. This integration allows the wheel to become electrically self-sufficient, processing its own data and powering its own electronics without external cable connections for power.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enhances the distribution of wheel braking and landing gear monitoring systems by reducing cable count and enabling local processing, improving system availability and reconfiguration capabilities without increasing cable load on the aircraft.
Implementation Method 1
a stator comprising a winding generating a measurement voltage when the wheel and therefore the permanent magnet rotate, the measurement voltage being representative of the speed of rotation of the wheel
Data Source
Figure 1
Figure 2~4
Figure 3
AI summary
The invention relates to a device for measuring the rotational speed of a vehicle wheel. The measuring device comprises a body (22) in which the following are integrated: - a rotor (30) that can be driven in rotation by the wheel and on which at least one permanent magnet (33) is mounted; - a stator (31) comprising a winding (36) that generates a measurement voltage when the wheel (2), and therefore the permanent magnet, rotates, the measurement voltage being representative of the wheel's rotational speed; - an electronic board (32) comprising means for processing the measurement voltage; - power supply means adapted to generate, from the measurement voltage, a supply voltage for powering the electronic board. Adaptation means are provided to lower or raise the supply voltage if it is above or below a predetermined threshold. These means may include a buck-boost converter.