UAV Motor Voltage Control to Prevent Thrust Saturation
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Solution Overview
Problem
Unmanned devices, particularly electric unmanned aerial vehicles, face issues of power saturation due to motor rotation speeds approaching upper or lower limits, leading to decreased control performance and potential loss of control during flight.
Innovation Solution
Adjusting the voltage input to the motor based on state and environmental information to maintain optimal rotation speed within a target range, preventing power saturation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the motor rotation speed is increased to provide sufficient thrust force for the unmanned device, then the thrust force is improved, but the motor rotation speed approaches the upper limit threshold causing power saturation and loss of control
Solution Approach 1:
The patent dynamically adjusts the voltage input to the motor based on real-time monitoring of rotation speed relative to threshold values. When the rotation speed approaches the upper limit threshold, the system reduces voltage to prevent power saturation, thereby maintaining control authority while still providing sufficient thrust force for flight operations
Solution Approach 2:
The system implements a feedback control mechanism where the rotation speed is continuously monitored and compared against predefined threshold values. Based on this feedback, the control system adjusts the voltage input to the motor, creating a closed-loop control system that prevents power saturation while maintaining optimal thrust force generation
2Reliability
If the motor rotation speed is decreased to avoid approaching the upper limit threshold, then power saturation is avoided, but the thrust force becomes insufficient for maintaining flight
Solution Approach 1:
The system dynamically modulates the voltage input to the motor based on the real-time rotation speed relative to threshold values. This dynamic adjustment ensures that the motor operates below the upper limit threshold to avoid power saturation while maintaining sufficient rotation speed to generate the thrust force required for flight
Solution Approach 2:
The patent changes the electrical parameter (voltage) input to the motor based on the rotation speed threshold comparison. By adjusting this parameter, the system maintains rotation speed within a safe operating range that prevents power saturation while still providing adequate thrust force for unmanned device operation
3Ease of operation
If a fixed voltage is applied to the motor, then the system is simple to operate, but the rotation speed cannot be dynamically adjusted to avoid power saturation under varying flight conditions
Solution Approach 1:
The system performs self-adjustment by automatically monitoring its own rotation speed and comparing it against predefined thresholds. Based on this self-monitoring, the system autonomously adjusts the voltage input to the motor without requiring external intervention, thereby maintaining adaptability to varying flight conditions while keeping the operation simple
Solution Approach 2:
The patent implements a feedback control loop where the system continuously monitors rotation speed and automatically adjusts voltage input based on threshold comparisons. This feedback mechanism provides adaptability to varying flight conditions while maintaining ease of operation, as the adjustment occurs automatically without complex user intervention
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
Ensures stable operation of unmanned devices by avoiding power saturation, maintaining control performance and adherence to flight targets.
Implementation Method 1
through a voltage inputted by the power battery to the unmanned aerial vehicle, each motor in the electric unmanned aerial vehicle can obtain power to cause the unmanned aerial vehicle to rotate
Data Source
AI summary
Provided is an unmanned device control method and apparatus, a storage medium, and an electronic device. In the method, thrust force required for an unmanned device and a target rotation speed required for providing the thrust force to the unmanned device are determined according to state information and/or environment information of the unmanned device, a voltage inputted into a motor of the unmanned device is adjusted according to the target rotation speed, and the unmanned device is controlled by using an adjusted voltage.