Disc Brake Auxiliary Pad Engagement for Emergency Braking Force
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Solution Overview
Problem
Current brake assist systems are insufficient in providing adequate braking force during emergency situations, leading to potential collisions due to insufficient reduction in braking distance.
Innovation Solution
A disc brake system comprising a main braking part and an auxiliary braking part, where the auxiliary braking part is activated based on a preset threshold value of brake pedal input, increasing the friction area by engaging an auxiliary pad on the disc's outer surface to enhance braking force during emergency situations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If brake assist systems increase braking force by increasing pressure on brake pads, then braking force is improved, but braking distance is not sufficiently reduced
Solution Approach 1:
The braking system is divided into two independent braking parts: a main braking part with main pads acting on both side surfaces of the disc, and an auxiliary braking part with an auxiliary pad acting on the outer circumferential surface of the disc. This segmentation allows the system to increase the friction area by engaging the auxiliary pad in addition to the main pads, thereby generating significantly stronger braking force and reducing braking distance to prevent collisions during emergency situations.
2Force
If an auxiliary braking part is added to increase friction area, then braking force is significantly improved, but device complexity increases
Solution Approach 1:
The auxiliary braking part is integrated with the main braking part such that both braking components work together in a unified system. The auxiliary pad is positioned to act on the outer circumferential surface of the disc while the main pads act on the side surfaces, creating a combined braking action that maximizes friction area without requiring completely separate systems. This merging approach increases braking force while minimizing the additional complexity introduced by the auxiliary component.
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 system effectively reduces braking distance and prevents collisions by generating a stronger braking force through increased friction area, ensuring safer emergency stops.
Implementation Method 1
generate a main braking force by friction between the both side surfaces of the disc and the main pads
Implementation Method 2
generate an auxiliary braking force by friction between the outer circumferential surface of the disc and the auxiliary pad
Data Source
AI summary
Disclosed herein is a disc brake system. The disc brake system according to the present embodiment includes a main braking part configured to slide and move a pair of main pads respectively disposed on both side surfaces of a disc in a direction of an axis of the disc and generate a main braking force by friction between the both side surfaces of the disc and the main pads, an auxiliary braking part configured to slide and move an auxiliary pad disposed at a side of an outer circumferential surface of the disc in a radial direction of the disc and generate an auxiliary braking force by friction between the outer circumferential surface of the disc and the auxiliary pad, and a controller configured to activate the main braking part in response to an input value generated based on a pedal force of a brake pedal measured by a sensor.