Organ-Type Electronic Brake Pedal Segmentation
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Solution Overview
Problem
The organ-type brake pedal apparatus is prone to incorrect operation when drivers accustomed to pendant-type pedals manipulate it by pushing the lower portion, as they inadvertently try to manipulate the pedal pad near the hinge, similar to pendant-type operation, leading to unreliable operation.
Innovation Solution
The organ-type electronic brake pedal apparatus is designed with a pedal pad that can be rotated or pushed forward like an organ-type pedal, while inhibiting manipulation near the hinge, utilizing a high-load spring module and pedal sensors to generate braking signals, ensuring correct operation by only allowing manipulation of the pad surface and preventing contact with the pedal arm part.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the pedal pad is designed with a larger area and lower center of rotation to improve operating sensation, then ease of operation is improved, but reliability deteriorates because drivers may incorrectly manipulate the lower portion near the hinge
Solution Approach 1:
The pedal pad is divided into two distinct parts: the pad surface (upper portion) and the pedal arm part (lower portion near hinge). Only the pad surface is designed to be manipulated by the driver's foot, while the pedal arm part is protected from direct contact. This segmentation allows the pedal pad to have a larger area for better operating sensation while preventing incorrect manipulation near the hinge, thus resolving the contradiction between ease of operation and reliability.
2Adaptability or versatility
If the pedal pad is designed to allow both rotation and forward pushing to accommodate different driving habits, then adaptability is improved, but device complexity increases due to additional constraints and protection mechanisms
Solution Approach 1:
By dividing the pedal pad into the manipulable pad surface and the protected pedal arm part, the design allows drivers to push forward (like pendant-type pedals) or rotate (like organ-type pedals) without increasing overall structural complexity. The segmentation inherently protects against incorrect manipulation while maintaining both manipulation modes.
Solution Approach 2:
The pad surface acts as an intermediary between the driver's foot and the pedal arm part. It transmits the driving force for both rotation and forward pushing while preventing direct contact with the pedal arm part near the hinge. This intermediary structure enables manipulation flexibility without requiring complex protection 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
This design enhances the reliability of brake pedal operation by allowing manipulation as either an organ-type or pendant-type pedal, preventing incorrect operation and ensuring the pedal arm part is not inadvertently manipulated, thus reducing the risk of unintentional pedal activation.
Implementation Method 1
a high-load spring module which includes a first end rotatably coupled to the pedal housing and a second end rotatably coupled to the pedal pad so as to realize resisting force corresponding to force applied to the pedal pad
Data Source
AI summary
An organ-type electronic brake pedal apparatus enables a pedal pad to be manipulated when a driver tries to manipulate the pedal pad by rotating his/her foot in the manner of manipulating an organ-type pedal or when the drivers tries to manipulate the pedal pad by stretching his/her foot forwards in the manner of manipulating a pendant-type pedal. The organ-type electronic brake pedal apparatus inhibits the pedal pad from being manipulated when the driver tries to manipulate a pedal arm part, which is positioned close to a hinge pin of the pedal pad.