Caliper Brake Dual Pressing Modes for Noise and Braking Force
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Solution Overview
Problem
Existing caliper brake systems typically implement only one braking mode, either using a first pressing member and a finger portion or a second pressing member, which limits their operational flexibility and effectiveness in various braking scenarios.
Innovation Solution
A caliper brake design that incorporates a first pressing member, a second pressing member, and a third pressing member, along with a housing and a controller, allowing for selective or simultaneous operation of two distinct braking modes to adapt to different braking conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If only one braking mode is implemented (either first pressing member with finger portion or second pressing member), then the device complexity is reduced, but the adaptability to different braking conditions deteriorates
Solution Approach 1:
The braking system is segmented into two independent braking modes: a first braking mode using the first pressing member and finger portion, and a second braking mode using the second pressing member. This segmentation allows the system to select the most appropriate braking mode based on specific driving conditions, thereby improving adaptability while managing complexity through functional division
Solution Approach 2:
The caliper brake is designed with multi-functionality by incorporating both the first pressing member with finger portion and the second pressing member, enabling the same device to perform multiple braking functions. The controller selectively activates either braking mode or both simultaneously, making the system universally applicable to various braking scenarios from low-speed noise-sensitive conditions to high-speed performance-critical conditions
2Object-affected harmful factors
If the first pressing member and finger portion are used for braking, then the noise during low-speed braking is reduced, but the braking force during high-speed braking is insufficient
Solution Approach 1:
Different pressing members are optimized for different local conditions: the first pressing member with finger portion is optimized for low-speed braking with reduced noise characteristics, while the second pressing member is optimized for high-speed braking with enhanced force generation. The controller selects the appropriate pressing member based on the specific braking conditions, applying local quality optimization to each component
Solution Approach 2:
The braking system dynamically switches between different pressing members based on real-time braking conditions. The controller monitors braking requirements and dynamically activates either the first pressing member for noise-sensitive low-speed conditions or the second pressing member for force-critical high-speed conditions, or both simultaneously for maximum braking performance
3Force
If the second pressing member is used for braking, then the braking force during high-speed braking is enhanced, but the noise during low-speed braking increases
Solution Approach 1:
The second pressing member is specifically designed with local quality characteristics optimized for high-speed braking force generation, while the first pressing member maintains noise-reduced characteristics for low-speed operation. By assigning different quality optimizations to different pressing members, the system achieves superior performance in respective operating ranges
Solution Approach 2:
The controller dynamically selects which pressing member to activate based on the operating speed and braking requirements. During low-speed braking, only the first pressing member is activated to minimize noise. During high-speed braking, the second pressing member is activated to maximize braking force. This dynamic selection prevents the noise issue from occurring in the first place rather than trying to mitigate it
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 dual braking mode capability enhances the caliper brake's performance by allowing it to adopt the most advantageous mode for specific braking situations, such as reducing noise during low-speed braking and securing a great braking force during high-speed braking.
Implementation Method 1
a first pressing member configured to press the inner brake pad toward the brake disc
Implementation Method 2
a housing including a finger portion configured to press the outer brake pad toward the brake disc with a reaction force caused by a pressing force from the first pressing member
Implementation Method 3
a second pressing member neighboring the first pressing member and configured to operate independently from the first pressing member to press the inner brake pad toward the brake disc
Implementation Method 4
a third pressing member being opposite to the second pressing member with the brake disc interposed therebetween and configured to operate independently from the first pressing member to press the outer brake pad toward the brake disc
Data Source
AI summary
A caliper brake includes: a brake disc; an inner brake pad positioned to an inner side of the brake disc; an outer brake pad positioned to an outer side of the brake disc; a first pressing member configured to press the inner brake pad toward the brake disc; a housing including a finger portion configured to press the outer brake pad toward the brake disc with a reaction force caused by a pressing force from the first pressing member; a second pressing member neighboring the first pressing member and configured to operate independently from the first pressing member to press the inner brake pad toward the brake disc; and a third pressing member being opposite to the second pressing member with the brake disc interposed therebetween and configured to operate independently from the first pressing member to press the outer brake pad toward the brake disc.