Air Spring Brake Chamber Fault Detection Using Pressure and Lining Heat
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing air spring brake chamber systems for vehicles lack a configuration to detect faults or small changes in the pushrod stroke, which can lead to inadequate maintenance and potential braking issues.
Innovation Solution
A fault diagnostic system that includes pressure measurement units to monitor pressures in the parking and service chambers, a brake lining temperature sensing unit to detect temperature anomalies, and a notification system to alert users of abnormal conditions, with a warning lamp to provide real-time data to the driver or control center.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If no diagnostic configuration is added to the brake chamber, then the device complexity remains low, but the reliability of braking system deteriorates due to inability to detect faults or small changes in pushrod stroke
Solution Approach 1:
The patent applies preliminary action by installing diagnostic sensors (pressure sensors in parking and service chambers, temperature sensor on brake lining) before faults occur. These sensors continuously monitor parameters and enable early detection of abnormal conditions, allowing preventive maintenance before actual braking failure happens. The control unit processes sensor data and triggers warnings in advance, resolving the contradiction by improving reliability through proactive monitoring without significantly increasing complexity.
Solution Approach 2:
The patent implements feedback mechanisms where sensors continuously measure pressure and temperature parameters, the control unit processes this information, and the system provides feedback through warning lamps or notifications to the driver. This closed-loop feedback enables real-time monitoring of brake chamber conditions, allowing the system to detect and alert about abnormalities, thereby improving reliability while maintaining acceptable device complexity through efficient sensor-controller-actuator loops.
2Measurement precision
If multiple sensors are installed to monitor pressure and temperature, then the measurement precision improves, but the device complexity increases due to additional components and wiring
Solution Approach 1:
The patent applies universality by designing a control unit that handles multiple sensor inputs (pressure sensors in both chambers, temperature sensor) and performs various functions including data acquisition, processing, comparison with threshold values, and triggering different warning outputs. This multi-functional control unit reduces the need for separate dedicated circuits for each sensor, thereby improving measurement precision through comprehensive monitoring while limiting the increase in device complexity through functional integration.
Solution Approach 2:
The patent merges multiple sensing functions into a unified diagnostic system where the control unit consolidates data from all sensors (parking chamber pressure, service chamber pressure, brake lining temperature) into a single processing platform. This merging approach enables comprehensive monitoring with high measurement precision while avoiding the complexity of entirely separate monitoring systems for each parameter, as the control unit handles all sensing, processing, and warning generation in an integrated manner.
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
Enables real-time monitoring and alerting of pressure and temperature anomalies, facilitating timely maintenance and preventing accidents by identifying faults in the air spring brake chamber.
Implementation Method 1
a pressure measurement unit configured to measure a pressure in each of a parking chamber between the piston and the adaptor housing and a service chamber between the adaptor housing and the diaphragm
Implementation Method 2
a brake lining temperature sensing unit connected to a brake lining to detect a temperature of the brake lining
Data Source
AI summary
A fault diagnostic system of an air spring brake chamber for vehicles according to an embodiment includes a pressure measurement unit configured to measure a pressure in each of a parking chamber between a piston and an adaptor housing and a service chamber between the adaptor housing and a diaphragm; a brake lining temperature sensing unit connected to a brake lining to detect a temperature of the brake lining; and a notification unit configured to generate an alarm about an abnormal situation in the brake based on a pressure measurement value of the pressure measurement unit and a temperature measurement value of the lining temperature sensing unit.