Brake Pedal Hall Sensor Integration for Compact Reliable Sensing
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Solution Overview
Problem
Existing electronic brake pedal apparatuses face issues with increased size, weight, and cost due to the inclusion of mechanical connections and multiple sensor components, which complicate the configuration and reduce durability.
Innovation Solution
The apparatus employs an electronic Hall sensor and Hall switch to perform stop lamp and stroke sensor functions, utilizing a contactless configuration with a pedal arm, magnets, and Hall sensors to simplify the design, reduce weight and cost, and enhance durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mechanical connection structures and multiple sensor components are included, then the braking system functionality is ensured, but the size, weight, and cost of the electronic brake pedal apparatus increase
Solution Approach 1:
The patent combines the stop lamp switch function and stroke sensor function into a single integrated sensor unit. The Hall sensor simultaneously detects both the on/off state of the brake pedal (for stop lamp control) and the operation amount (for braking control), eliminating the need for separate mechanical connection structures and multiple independent sensor components, thereby reducing weight while maintaining full braking system functionality
Solution Approach 2:
The Hall sensor is designed to perform multiple functions: it acts as both a stop lamp switch (detecting pedal on/off state) and a stroke sensor (detecting pedal operation amount). This multi-functional approach allows a single component to replace what would traditionally require multiple separate components, reducing overall apparatus weight without compromising braking system reliability
2Reliability
If mechanical connection structures and multiple sensor components are included, then the braking system functionality is ensured, but the configuration becomes complicated
Solution Approach 1:
The patent merges the stop lamp switch and stroke sensor into a single integrated sensor unit with unified signal processing. The Hall sensor outputs are processed by a single control unit that generates both the stop lamp signal and braking control signal, significantly simplifying the configuration compared to traditional separate mechanical connections and independent sensor systems
Solution Approach 2:
The patent replaces mechanical connection structures (cables, linkages) with a contactless Hall sensor-based detection system. The Hall sensor detects pedal position and operation amount through magnetic field changes without mechanical contact, eliminating complex mechanical transmission paths and simplifying the overall configuration while ensuring reliable braking system functionality
3Reliability
If mechanical connection structures are included, then the braking system functionality is ensured, but durability is reduced
Solution Approach 1:
The patent replaces mechanical connection structures with a contactless Hall sensor-based detection system. The Hall sensor detects pedal position and operation amount through magnetic field changes without physical contact, eliminating wear and tear associated with mechanical connections and significantly improving apparatus durability while maintaining reliable braking system functionality
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
This configuration simplifies the apparatus, reduces weight and cost, and improves durability while maintaining reliable operation through the use of contactless sensors and redundant braking signals.
Implementation Method 1
an electronic Hall sensor and a Hall switch... configured to detect a change in the magnetic flux of the magnet portions
Data Source
AI summary
An electronic brake pedal apparatus may perform a function of a stop lamp switch and a function of a stroke sensor in the related art by use of electronic Hall sensors and a Hall switch and diagnose failure by use of the two Hall sensors and the Hall switch, which makes it possible to simplify a configuration, reduce an external size and costs, and improve durability, reliability, and marketability by use of a contactless sensor.