Brake Caliper Reinforcing Element for Oscillation Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The increase in brake disk diameter leads to a reduction in brake caliper bridge thickness, resulting in reduced rigidity and associated oscillation and noise issues, such as brake screeching, due to inherent oscillations.
Innovation Solution
A brake caliper design that incorporates a reinforcing element with a C-profile, connected via fastening elements to the housing, enhancing rigidity by suppressing torsional, flexural, and shearing oscillations, and reducing noise through quadruple screwing and optimized attachment to the wheel carrier.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the brake disk diameter is increased, then the braking performance is improved, but the brake caliper bridge thickness must be reduced which leads to reduced rigidity and increased oscillations
Solution Approach 1:
The brake caliper is divided into functional segments: the housing with reduced bridge thickness for weight reduction, and the separate reinforcing element (supporting frame) that provides structural rigidity. This segmentation allows the bridge thickness to be reduced for improved braking performance while the reinforcing element compensates for the lost rigidity.
Solution Approach 2:
The reinforcing element acts as an intermediary component between the brake caliper housing and the mounting structure. It mediates the structural loads, providing the necessary rigidity support without requiring the bridge thickness to be increased, thus resolving the contradiction between reduced bridge thickness and maintained rigidity.
2Weight of moving object
If the brake caliper bridge thickness is reduced, then the weight is reduced and braking performance is improved, but inherent oscillations and noise problems increase
Solution Approach 1:
The reinforcing element is designed to alter the vibration characteristics of the brake caliper system. By providing additional structural support through the supporting frame, it changes the natural frequencies and mode shapes of the caliper, suppressing the oscillations that lead to brake screeching noise while maintaining the reduced weight design.
Solution Approach 2:
The invention changes the structural parameters of the brake caliper by introducing the reinforcing element with specific geometric features (longitudinal and transverse edges forming a supporting frame). This parameter change allows the bridge thickness to be reduced for weight reduction while the reinforcing element's geometry is optimized to suppress harmful oscillations and noise.
3Stability of the object's composition
If a reinforcing element is added to maintain rigidity, then the structural stability is improved, but the device complexity increases
Solution Approach 1:
The reinforcing element is designed to perform multiple functions simultaneously: it provides structural rigidity support, suppresses vibrations and oscillations, reduces noise, and serves as a mounting structure for brake linings. By consolidating these functions into a single component, the overall device complexity is minimized while achieving the desired structural stability.
Solution Approach 2:
The reinforcing element merges several structural functions into one integrated component. Instead of having separate elements for rigidity support, vibration damping, and lining mounting, the supporting frame combines all these functions, thereby improving structural stability without proportionally increasing device complexity.
Data Source
AI summary
In order to avoid oscillations and brake screeching associated with such oscillations, a brake caliper is provided with a reinforcing element. The reinforcing element is formed with a C-shaped profile element that is connected to the brake caliper on the underside of the housing of said brake caliper. The reinforcing element can also be configured in order to hold the brake pads and linings and therefore relieve the housing of the braking torque.