Electronic Pedal Feedback Structure With Dual Magnetic Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In autonomous driving vehicles, the existing foldable pedal apparatuses require complex operation mechanisms and lack clear feedback for the driver, making it difficult to recognize pedal operation and increasing the risk of erroneous operation, which affects driver comfort and safety.
Innovation Solution
An electronic pedal apparatus with a dual detecting structure using two permanent magnets and a PCB, combined with a spring module and friction member, that provides a large change in pedal effort and clear operation feedback, allowing drivers to operate pedals with minimal effort and reducing fatigue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a foldable pedal apparatus is used to hide the pedal in autonomous driving mode, then driver comfort and safety are improved, but the operation mechanism becomes complicated and space is required for hiding
Solution Approach 1:
The patent extracts the foldable function from the pedal apparatus by using a separate actuator system that independently controls the pedal's protrusion and retraction. This separates the detection function from the actuation mechanism, simplifying the overall operation mechanism while maintaining safety through the dual detection structure.
Solution Approach 2:
The pedal apparatus is designed to perform multiple functions: it can protrude for manual driving operation and retract for autonomous driving mode. The dual detection structure (magnetic sensor and force sensor) universally detects both the position and operational force, enabling the system to adapt to different driving modes without requiring separate mechanisms.
2Device complexity
If the pedal operating displacement is made very small to simplify the mechanism, then the operation mechanism becomes simpler, but it becomes difficult for the driver to recognize the degree of pedal operation
Solution Approach 1:
The patent implements feedback by providing force feedback through the friction member that resists pedal movement. This haptic feedback allows the driver to sense the degree of pedal operation through tactile sensation, compensating for the small visual displacement. The magnetic sensor also provides positional feedback to the control system for accurate detection.
Solution Approach 2:
The patent uses the friction member to create variable resistance that changes with pedal position and force applied. This creates a tactile 'color change' in the form of varying friction levels that the driver can perceive, indicating the degree of operation without requiring large visual movement.
3Measurement precision
If a dual detecting structure with two permanent magnets and PCB is used, then detection accuracy and safety are improved, but device complexity increases
Solution Approach 1:
The patent merges two detection methods (magnetic position sensing and force sensing) into a single integrated pedal apparatus. The magnetic sensor detects pedal position while the force sensor detects operational force, and both are combined in the control system to provide comprehensive detection with high accuracy without requiring separate independent systems.
Solution Approach 2:
The dual detection structure serves multiple functions: the magnetic sensor provides positional information for control, the force sensor provides operational intensity information, and together they enable safety verification. This multi-functional detection system achieves high measurement precision while the control system integrates both inputs efficiently.
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 electronic pedal apparatus enables easy recognition of pedal operation and enhances safety by providing clear feedback and reducing driver fatigue through a simple operation mechanism and dual detection system.
Implementation Method 1
a spring module provided to be supported on the pedal housing and engaged to the pedal pad and configured to provide a restoring force to the pedal pad
Implementation Method 2
a friction member fixed to the pedal housing; and a rotation lever rotatably coupled to the pedal pad by a first connection pin and including a first end portion rotatably coupled to the spring module by a second connection pin, and a second end portion provided to be in contact with the friction member
Implementation Method 3
An electronic pedal apparatus configured to detect an operation of a pedal by use of a dual detecting structure using two permanent magnets and a PCB
Data Source
AI summary
An electronic pedal apparatus, in which a driver may operate the electronic pedal apparatus with a small effort, may operate by fine displacement when the driver operates a pedal pad, but a spring module is displaced by being pressed by the pedal pad and displaced by being pressed by a rotation lever so that a large change in pedal effort may be implemented, and safety during an operation of a pedal may be further improved by use of a dual detecting structure using first and second permanent magnets and first and second PCBs.