Brake Particle Filter Presence Detection in Vacuum Capture Circuits
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Solution Overview
Problem
Friction brake systems may lack a filter, allowing braking particles to escape into the atmosphere due to the absence of a capturing system, which is detrimental and not easily detected.
Innovation Solution
A system with a control unit and filter detection device that sends signals to identify the absence of a filter on the pneumatic circuit, using pressure sensors, contact detectors, and contactless detectors to inform the user.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a filter is installed on the pneumatic circuit to capture braking particles, then particle filtration is improved, but the system complexity increases due to the need for filter detection and monitoring
Solution Approach 1:
The patent implements a filter detection device that continuously monitors filter presence and sends signals to a control unit. This feedback mechanism allows the system to detect filter absence and alert users, resolving the contradiction by adding monitoring capability without requiring complete system redesign.
Solution Approach 2:
The detection device automatically monitors filter status and triggers alerts without requiring manual inspection. The system serves itself by detecting filter absence through pressure differential measurements or direct sensor contact, reducing the need for user intervention while maintaining particle filtration.
2Reliability
If a filter detection device is added to monitor filter presence, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent replaces complex mechanical detection mechanisms with simpler sensor-based systems. Pressure sensors measure pressure differentials across the filter, or contact sensors detect filter presence electrically, substituting mechanical inspection with automated sensing that improves reliability without proportionally increasing complexity.
Solution Approach 2:
The detection device is designed to perform multiple functions: detecting filter presence, monitoring filter status, and triggering alerts. This multi-functionality consolidates what could be multiple separate devices into one integrated system, improving reliability while controlling overall complexity.
3Measurement precision
If pressure sensors are installed upstream and downstream of the filter to detect filter absence, then measurement precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent places pressure sensors at specific locations (upstream and downstream of the filter) where they can most effectively detect filter status. This localized placement optimizes measurement precision by positioning sensors where pressure differentials are most indicative of filter presence, rather than distributing sensors throughout the entire system.
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
Ensures immediate detection and prevention of harmful particle release into the atmosphere by informing users of filter absence, reducing emissions and ensuring proper filter installation.
Implementation Method 1
a pressure sensor which is located on the pneumatic circuit upstream of the filter, the pressure sensor being capable of sending in a signal to the control unit a measurement of the pressure P1 in the pneumatic circuit upstream of the filter
Implementation Method 2
a vacuum source (for example a suction turbine driven by a motor) which is connected by a pneumatic circuit to the friction brake system
Data Source
AI summary
The invention relates to a system for capturing braking particles from a friction brake system, which has a vacuum source, a pneumatic circuit which connects the friction brake system to the vacuum source, and a filter located on the pneumatic circuit and mounted on a support. The capturing system comprises a control unit and a detection device for the filter which is capable of sending at least one signal to the control unit, the control unit being capable, on the basis of this signal, of identifying the absence of the filter and of informing a user of this absence of the filter.