Magnetic Throttle Sensing for Precise Vehicle Motor Power Control
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Solution Overview
Problem
Existing methods for controlling vehicle motor power, such as throttle pedals or grips, are not cost-effective and reliable, lacking precision and safety features.
Innovation Solution
A device comprising a magnet and a magnetic field sensor that moves relative to each other based on the throttle controller's movement, allowing precise control of motor power through sensed magnetic field positions, with safety features like driver fatigue detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional throttle pedals or grips are used for motor power control, then the control mechanism is simple and easy to manufacture, but the precision and reliability of power control deteriorates
Solution Approach 1:
The patent replaces traditional mechanical throttle position sensing mechanisms with a magnetic field-based sensing system. A magnet is attached to the throttle controller and a magnetic field sensor detects its position, converting mechanical movement into magnetic field changes for precise digital measurement of throttle position and motor power control.
Solution Approach 2:
The magnetic field sensor system serves multiple functions: it detects throttle position, determines motor power output, and enables safety features like driver fatigue detection. This multi-functional approach improves precision without proportionally increasing complexity.
2Reliability
If traditional throttle control mechanisms are used, then the device structure is simple, but the reliability and safety features deteriorate
Solution Approach 1:
The magnetic field sensor continuously monitors the magnet's position and provides real-time feedback to the control system. This feedback mechanism enables precise control and reliability by constantly tracking throttle position and adjusting motor power accordingly, while also supporting safety features like fatigue detection through movement pattern analysis.
Solution Approach 2:
The magnetic field acts as an intermediary between the mechanical throttle controller and the electronic control system. The magnet converts mechanical movement into a detectable magnetic field signal, providing a reliable interface that enhances control reliability without requiring direct mechanical or electrical connections.
3Measurement precision
If magnetic field sensing is implemented for precise power control, then power control precision improves, but manufacturing cost increases
Solution Approach 1:
The patent uses inexpensive magnet and magnetic field sensor components that are mass-producible and cost-effective. These components are simple to manufacture and integrate into existing throttle control systems, providing precise measurement capabilities without significantly increasing manufacturing costs compared to traditional mechanical sensing mechanisms.
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
Provides cost-effective and reliable motor power control with enhanced safety features, including driver fatigue monitoring and alert systems.
Implementation Method 1
a magnetic field sensor configured to sense a magnetic field of the magnet
Data Source
AI summary
A device includes a magnet and a magnetic field sensor configured to sense a magnetic field of the magnet. The magnet and the magnetic field sensor are arranged to be movable relative to each other. A relative movement between the magnet and the magnetic field sensor is based on a movement of a throttle controller of a vehicle. A power provided by a motor of the vehicle correlates to a position of the magnet relative to the magnetic field sensor as sensed by the magnetic field sensor.