Modular Organ-Type Pedal Assembly for Tunable Effort and Stroke
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Solution Overview
Problem
Current organ-type pedal apparatuses for vehicles are costly to manufacture and require new production for varying pedal efforts, strokes, and hysteretic forces, leading to high investment and production costs.
Innovation Solution
An organ-type electronic pedal apparatus incorporating a high-load spring module and a hysteresis lever, allowing for adjustable pedal effort, stroke, and hysteretic force by modifying the hysteresis lever components, along with stroke sensors to generate signals for pedal function, reducing costs and simplifying configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the entire pedal apparatus is newly manufactured to meet varying pedal effort, stroke, and hysteretic force requirements for different vehicle types, then the pedal characteristics can be adjusted, but the investment cost and production cost increase significantly
Solution Approach 1:
The pedal apparatus is divided into modular components: a base pedal unit and interchangeable hysteresis levers. The hysteresis lever includes a lever body, spring, and damper assembly that can be replaced as a module. This segmentation allows different vehicle types to use the same base unit with customized hysteresis lever modules, reducing overall manufacturing cost while maintaining adaptability.
Solution Approach 2:
The base pedal apparatus is designed with universal mounting interfaces and standardized connection points that can accommodate multiple types of hysteresis levers. The pedal arm, hinge pin, and housing are configured to work with various spring rates, lever ratios, and damping characteristics, allowing a single base design to serve multiple vehicle applications.
2Adaptability or versatility
If the entire pedal apparatus is newly manufactured for different vehicle types, then the required pedal effort, stroke, and hysteretic force can be achieved, but the device complexity and configuration increase
Solution Approach 1:
The hysteresis lever incorporates adjustable elements including variable spring pre-loads, interchangeable dampers with different damping coefficients, and adjustable lever arm lengths. These dynamic adjustment capabilities allow the same physical structure to provide different pedal characteristics without requiring complete redesign or complex multi-component assemblies.
3Adaptability or versatility
If the entire pedal apparatus is newly manufactured for different vehicle types, then the specific pedal characteristics can be obtained, but the production time and cost increase
Solution Approach 1:
Hysteresis lever modules are pre-assembled and pre-tested with specific spring rates, damper settings, and lever ratios during manufacturing. These pre-configured modules can be directly installed into the base pedal unit without requiring final assembly or calibration, significantly reducing production time while maintaining vehicle-specific performance characteristics.
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
Enables cost reduction, simplified configuration, miniaturization, and reduced production costs while minimizing driver fatigue by tuning pedal characteristics for different vehicle types.
Implementation Method 1
the hysteresis lever to generate hysteresis by a frictional force between the pedal pad and the hysteresis lever when the pedal pad rotates
Implementation Method 2
a spring module installed to be supported on the pedal pad and the hysteresis lever
Data Source
AI summary
The present disclosure relates to an organ-type electronic pedal apparatus including a high-load spring module 500 and a hysteresis lever 400 and capable of tuning a pedal effort, a stroke, and a hysteretic force, which are required to vary depending on the types of vehicles, by changing components of the hysteresis lever 400, as necessary.