Braking Torque Measurement via Lever Bending in Disc Brakes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Disc brake devices without hanging brackets require robust and rigid brake caliper designs to absorb braking torque, leading to increased material usage and unfavorable loads on joints and bearings, necessitating a solution for efficient torque absorption and measurement.
Innovation Solution
Incorporating a lever connected to a mounting device with a braking torque sensor that detects bending, allowing for precise measurement of braking torque, thereby reducing the load on the brake lever and enabling optimization of the brake caliper's material usage and weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If disc brake devices are designed without hanging brackets, then the brake caliper structure is simplified, but the brake caliper requires robust and rigid design leading to increased material usage and weight
Solution Approach 1:
The patent introduces a lever as an intermediary component between the brake pad holding device and the brake caliper. This lever absorbs the braking torque and transmits it to the frame, serving as a mediator that protects the brake caliper from high torque loads. This allows the brake caliper to be designed with less material and reduced weight while maintaining structural integrity.
2Device complexity
If disc brake devices are designed without hanging brackets, then the brake caliper design is simplified, but the joints and bearings of the brake caliper are subjected to unfavorably large loads
Solution Approach 1:
The lever acts as an intermediary that carries the braking torque away from the brake caliper joints and bearings. By introducing this intermediate load-bearing component, the forces acting on the brake caliper's joints and bearings are significantly reduced, allowing for a simpler brake caliper design with fewer reinforcement requirements.
Solution Approach 2:
The patent segments the load-bearing functions by separating the torque absorption function (performed by the lever) from the clamping function (performed by the brake caliper). This segmentation allows each component to be optimized for its specific function, with the brake caliper focusing solely on clamping without bearing the full torque load.
3Measurement precision
If a lever with braking torque sensor device is added, then direct and precise measurement of braking torque is achieved, but the device complexity increases
Solution Approach 1:
The patent replaces complex mechanical torque measurement systems with a more elegant solution: a bending sensor that measures the deflection of the lever. This substitution uses the lever's elastic deformation as a direct indicator of torque, simplifying the measurement system while maintaining high precision. The bending sensor detects physical displacement rather than requiring complex mechanical strain gauge arrangements.
Solution Approach 2:
The lever serves dual functions: it mechanically absorbs and transmits torque while simultaneously serving as the sensing element for torque measurement. The lever's own bending deformation provides the measurement signal, eliminating the need for separate measurement components and reducing overall device complexity.
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
This solution allows for direct and precise measurement of braking torque, reducing the load on the brake lever and enabling optimization of the brake caliper's design for improved material usage and weight reduction, while providing reliable input signals for brake control devices.
Implementation Method 1
a braking torque sensor device which detects bending of the lever
Data Source
Figure 1
Figure 2
Figure 3~5
AI summary
The invention relates to a braking system comprising brake lining retaining devices (9,12) arranged on either side of a braking element (3), each retaining device being suspended by means of at least one hanging support link (10,11). The aim of the invention is to design a braking system which supplies reliable signals to a brake control unit. For this purpose, the at least one hanging support link (10,11), at its end remote from the brake lining retaining devices (9,12), is connected to a free end of a lever (13) which is mounted on an application unit (2) of the braking system. The braking system further comprises a braking torque sensor (16) which senses a deformation of the lever (13). The braking system can also be equipped with a brake application force sensing device (41). The braking system is preferably used as a disk brake system.