Magnetic Clamp Propulsor Lock for Electric Aircraft Security
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Solution Overview
Problem
Electric aircraft systems lack a reliable mechanism to prevent unauthorized use and operation beyond physical limits, particularly when software limitations are bypassed, leading to potential safety hazards.
Innovation Solution
A system that includes a propulsor with a rotor and motor mechanically coupled to a magnetic clamp, controlled by a sensor and flight controller, which selectively locks the propulsor based on its position, preventing unauthorized flight initiation and ensuring operation within set limits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If software limitations are used to control propulsor operation, then operational control is achieved, but security and reliability are insufficient when software is bypassed
Solution Approach 1:
A mechanical clamp is introduced as an intermediary device between the propulsor and the control system. The clamp physically prevents propulsor rotation when unauthorized access is detected, serving as a hardware mediator that reinforces software control measures and provides fail-safe protection against software bypass attempts.
Solution Approach 2:
The patent replaces pure software control with a hybrid system that incorporates mechanical constraints. The clamp mechanism provides physical prevention of unauthorized operation, substituting the need for purely software-based security measures and enhancing overall system reliability through mechanical fail-safes.
2Loss of energy
If propulsor is stowed to reduce air resistance, then aerodynamic efficiency is improved, but unauthorized operation may still occur
Solution Approach 1:
The clamp acts as a mediator between the stowed propulsor position and unauthorized operation. Even when the propulsor is retracted to minimize drag, the clamp maintains physical control and can prevent unauthorized rotation or operation, ensuring security is not compromised by the stowed configuration.
3Reliability
If hardware mechanism is added to prevent unauthorized use, then security is improved, but device complexity increases
Solution Approach 1:
The security function is extracted from the complex control system and implemented through a simple, dedicated mechanical clamp mechanism. This isolated hardware component provides unauthorized use prevention without requiring complex integration with the broader flight control system, thereby limiting the increase in overall device complexity.
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
The system effectively prevents unauthorized flight and ensures the electric aircraft operates within safe parameters by locking the propulsor when unauthorized access is detected or when it is stowed, thereby enhancing safety and preventing operational errors.
Implementation Method 1
A system that includes a propulsor with a rotor and motor mechanically coupled to a magnetic clamp, controlled by a sensor and flight controller, which selectively locks the propulsor based on its position
Data Source
AI summary
A system for stowable propulsion in an electric aircraft that includes at least a propulsor mounted on at least a structural feature that includes at least a rotor and at least a motor mechanically coupled to the at least a rotor, where the motor is configured to cause the rotor to rotate as a function of an activation datum, at least a sensor communicatively coupled to the at least a propulsor configured to detect a position datum as a function of the configuration, generate a clearance datum as a function of the position datum, transmit the clearance datum to a flight controller, and a flight controller communicatively coupled to the at least a propulsor and the at least a sensor configured to receive the clearance datum from the at least a sensor and generate the activation datum as a function of the clearance datum.