Electric Scooter Power Control via Hall Sensor Feedback
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Solution Overview
Problem
Electric scooters require accelerators for power control, increasing cost and installation difficulty, and pose safety hazards due to sensitive control requirements.
Innovation Solution
A power control method and apparatus that detects a vehicle's traveling state, determines if it receives assisting power from outside, and generates compensation power using wheel hub motors with Hall sensors to control speed without an accelerator, allowing users to control the scooter through foot-stamping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an accelerator is provided to control power output and traveling velocity, then the vehicle can be controlled to maintain normal traveling velocity, but the overall cost and installation difficulty increase
Solution Approach 1:
The patent removes the accelerator component from the electric scooter system entirely. Instead of using an accelerator to control power output, the system uses the wheel hub motor's own control capabilities to detect traveling state and automatically adjust power output, thereby eliminating the need for the accelerator and reducing device complexity
Solution Approach 2:
The wheel hub motor performs self-detection of the vehicle's traveling state and self-adjustment of power output based on detected parameters. The motor controller automatically regulates power without requiring external accelerator input, enabling the system to control its own traveling velocity
2Ease of operation
If an accelerator is used to control power output, then the traveling velocity can be adjusted, but the operation skill of the user is highly demanded and safety hazards arise due to sensitive control
Solution Approach 1:
The system continuously detects the vehicle's traveling state through the wheel hub motor and uses this feedback to automatically adjust power output. The controller monitors parameters such as wheel speed and traveling state, and dynamically regulates motor power to maintain safe and stable velocity without requiring user skill
Solution Approach 2:
The patent replaces the mechanical accelerator control system with an electronic control system based on the wheel hub motor's detection and control capabilities. This substitution eliminates the need for mechanical accelerator operation and replaces it with automated electronic regulation, improving both ease of operation and safety
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
Reduces vehicle cost and complexity, enhances user safety and control simplicity by eliminating the need for an accelerator and using built-in sensors for motion monitoring, reducing weight and production costs.
Implementation Method 1
the wheel hub motor is provided with multiple Hall sensors; and the method may include the following operations. A rotational velocity of a rotor of the wheel hub motor is sensed using the Hall sensors
Data Source
AI summary
A power control method includes at least: detecting a first driving state of a vehicle; determining that the vehicle obtains an assisting power from outside of said vehicle according to the first driving state of the vehicle; determining a second driving state of the vehicle which is provided thereto due to the assisting power from outside; controlling the vehicle to generate a first compensating power for use in compensating power for the driving of the vehicle according to the second driving state; and controlling the vehicle to operate on the basis of the first compensation power. Also provided are a vehicle and a non-transitory computer storage medium.