Brake Particle Filter Absence Detection by Pressure Feedback
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Solution Overview
Problem
Existing brake particle capture systems fail to ensure continuous filtration due to the absence of filters, leading to the release of harmful particles into the atmosphere.
Innovation Solution
A system with a control unit and detection device that informs users of the absence of a filter by comparing pressure measurements or detecting physical contact, ensuring immediate filter replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a filter is installed in the pneumatic circuit to capture brake particles, then particle filtration is improved, but the system cannot detect when the filter is absent
Solution Approach 1:
The patent implements a feedback mechanism by installing a detection device that continuously monitors filter presence and sends signals to a control unit. When the filter is absent or removed, the detection device generates a signal that triggers an alarm or warning to the operator, ensuring immediate awareness and corrective action. This closed-loop feedback system resolves the contradiction by maintaining both filtration functionality and detection capability.
Solution Approach 2:
The patent introduces an intermediary detection device between the filter and the pneumatic circuit that acts as a mediator to sense filter presence. This intermediary component includes sensors (such as pressure sensors, flow sensors, or position sensors) that detect whether the filter is properly installed and transmit this information to the control system, enabling indirect monitoring of filter status without interfering with the primary filtration function.
2Measurement precision
If pressure sensors are installed to detect filter absence, then detection accuracy is improved, but device complexity increases
Solution Approach 1:
The patent applies multi-functionality by designing pressure sensors that serve dual purposes: monitoring system pressure for braking operation and detecting filter presence. The same pressure measurements used for normal system control are also analyzed to determine filter status, eliminating the need for separate dedicated detection sensors and reducing overall system complexity while maintaining detection precision.
Solution Approach 2:
The system utilizes existing pressure measurement infrastructure to perform self-detection of filter absence. The control unit analyzes pressure data already being collected for braking system operation and automatically determines filter status from these measurements, allowing the system to monitor its own state without requiring additional external detection devices.
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
Prevents the release of brake particles into the atmosphere by alerting users to filter absence, reducing environmental contamination and ensuring continuous filtration.
Implementation Method 1
a pressure sensor which is located on the pneumatic circuit upstream of the filter, the pressure sensor being able to send to the control unit in a signal a measurement of the pressure P1 in the pneumatic circuit
Data Source
Figure 1~3
Figure 4~7
AI summary
The invention relates to a system(1) for capturing braking particles of a friction brake system (10), which has a vacuum source (20), a pneumatic circuit (30) that connects the friction brake system (10) to the vacuum source (20), a filter (40) located on the pneumatic circuit (30) and mounted on a support (41). The capturing system (1) comprises a control unit (60) and a detection device (50) of the filter (40), which is capable of sending at least one signal to the control unit (60), the control unit (60) being capable of determining on the basis of this signal the absence of the filter (40) and to inform a user of this absence of the filter (40).