Wheel Brake Pad Interface for Residual Drag Release
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Solution Overview
Problem
Existing wheel brake systems experience residual drag losses after a braking event due to inadequate separation of the brake pads from the brake disc, leading to increased fuel consumption and wear on brake components.
Innovation Solution
A wheel brake arrangement featuring a brake pad arrangement with an engagement interface section that, in conjunction with a spreader plate, ensures the brake pad arrangement is efficiently moved away from the brake disc during brake release, preventing residual drag.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the brake pad arrangement is not sufficiently removed from the brake disc after braking, then the braking capability is maintained, but residual drag losses increase fuel consumption and cause increased wear of the brake pads
Solution Approach 1:
The engagement interface section is designed to dynamically change its state between brake mode and brake release mode. During brake mode, the interface surfaces are separated to allow brake pad engagement with the brake disc. During brake release mode, the interface surfaces come into abutment to securely hold the brake pad arrangement away from the brake disc, preventing residual drag. This dynamic transition resolves the contradiction by adapting the connection state to the operational requirements.
Solution Approach 2:
The engagement interface section is designed to automatically engage the brake pad arrangement with the spreader plate before the brake release is completed. This preliminary action ensures that the brake pads are securely held away from the brake disc as soon as braking force is released, preventing any residual contact and drag losses while maintaining braking capability during the braking event.
2Ease of operation
If the brake pad arrangement remains in contact with the brake disc after braking, then the brake pads are kept in position, but drag losses increase fuel consumption
Solution Approach 1:
The spreader plate acts as an intermediary element between the brake pad arrangement and the brake disc. The engagement interface section connects the brake pad arrangement to the spreader plate, which then holds the brake pads at a controlled distance from the brake disc during release mode. This intermediary mechanism ensures proper brake pad positioning without requiring direct contact with the brake disc, thereby eliminating drag losses and reducing fuel consumption.
3Loss of energy
If the brake pads are frequently adjusted to ensure proper removal, then residual drag is reduced, but maintenance complexity increases
Solution Approach 1:
The engagement interface section is designed to automatically ensure proper separation between the brake pad arrangement and the brake disc during brake release mode. The first and second interface surfaces come into abutment to self-adjust and hold the brake pads in the correct position without requiring manual intervention or frequent adjustments. This self-service mechanism reduces residual drag losses while minimizing maintenance complexity.
Data Source
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AI summary
The present disclosure relates to a wheel brake arrangement. The wheel brake arrangement comprises a brake pad arrangement, a spreader plate and an engagement interface section. The engagement interface section comprises a first interface surface forming part of the brake pad arrangement, and a second interface surface forming part of the spreader plate, the first and second interface surfaces being arranged in abutment with each other in at least an axial direction of the wheel brake arrangement during a brake release mode of the wheel brake arrangement to prevent axial displacement between the brake pad arrangement and the spreader plate.