Brake Holder Elastic Bending Element Displacement Measurement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for measuring braking forces in disk brakes often suffer from hysteresis effects, leading to inaccurate measurements due to components not returning to their original state after application and release, which is critical for closed-loop control systems requiring precise and reliable data.
Innovation Solution
The brake holder is elastically and laterally connected to a carrier via bending elements that deform elastically under braking forces, allowing precise measurement of displacement travel, which avoids hysteresis by returning to its initial position, and a sensor device measures this displacement to determine the braking force accurately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the brake holder is rigidly connected to the carrier, then the fastening is robust and stable, but hysteresis effects occur causing measurement inaccuracy
Solution Approach 1:
The rigid connection between brake holder and carrier is segmented into multiple elastic bending elements. This segmentation allows the connection to maintain structural integrity while enabling elastic deformation that avoids hysteresis effects, thereby improving measurement accuracy without significantly increasing overall device complexity.
Solution Approach 2:
The connection structure transitions from a rigid state to an elastic state by changing the mechanical parameters of the bending elements. This parameter change enables the connection to deform elastically under load and return to its original position, eliminating hysteresis while maintaining robust fastening.
2Measurement precision
If the brake holder is elastically displaceable, then hysteresis effects are avoided and measurement precision improves, but the stability of the connection decreases
Solution Approach 1:
The connection transitions from a static rigid structure to a dynamic elastic structure that can adapt its stiffness based on operational conditions. The bending elements provide controlled elasticity that enables precise displacement measurement while maintaining connection stability through elastic recovery.
Solution Approach 2:
The elastic bending elements create a simplified mechanical model that copies the essential deformation behavior needed for measurement without the complexity of rigid body mechanics. This allows precise measurement of displacement while the elastic nature ensures stable, repeatable behavior.
3Measurement precision
If strain gauges are used to measure brake caliper deformation, then braking force can be measured, but hysteresis effects cause the components not to return to original state
Solution Approach 1:
Elastic bending elements are introduced as intermediary components between the brake holder and carrier. These intermediaries deform elastically to transmit force information while maintaining a reversible connection, thereby improving both measurement precision and repeatability by eliminating the hysteresis problems associated with direct rigid connections.
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 enables precise and reliable determination of braking forces, essential for closed-loop control systems, by measuring the bending of the bending elements rather than the brake holder's deformation, ensuring accurate input for control systems and robust fastening of the brake holder.
Implementation Method 1
the brake holder is fixed by means of at least one elastic bending element to the carrier, wherein a sensor device is provided for determining the displacement travel of the brake holder relative to the carrier
Data Source
AI summary
An assembly for determining a measurement quantity for a braking force acting on a brake, including a carrier and a brake holder. The aim of the invention is for the assembly to enable precise and reproducible measurements of a measurement quantity characteristic of the braking force. This aim is achieved in that the brake holder is arranged in such a way that the brake holder can be elastically and laterally displaced with respect to the carrier, wherein the brake holder is fastened to the carrier by at least one elastic bending element, wherein a sensor device is provided for determining the displacement distance of the brake holder with respect to the carrier.