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JP-2026074695-A - Health determination device, air brake system, and health determination method

JP2026074695AJP 2026074695 AJP2026074695 AJP 2026074695AJP-2026074695-A

Abstract

[Problem] To provide a health determination device, an air brake system, and a health determination method that are easy for users to use when performing maintenance on air compressors. [Solution] In the health determination device 200, the detection data acquisition unit 231 acquires detection data DA, which represents the detected value of a physical quantity that depends on the health of the air compressor. The health determination unit 232 uses the detection data DA or processed data and the determination criterion data 241 to determine whether the air compressor is in a normal state, a state requiring inspection, or a state of abnormality. Furthermore, if the health determination unit 232 determines that the air compressor is in a state requiring inspection, it outputs inspection notification information indicating that the components of the air compressor are in a state requiring inspection, and if it determines that the air compressor is in a state of abnormality, it outputs abnormality notification information indicating that the components of the air compressor are in a state of abnormality. [Selection Diagram] Figure 3

Inventors

  • 西 貴志
  • 新井 修
  • 船渡 憲太郎
  • 大西 壮馬

Assignees

  • 三菱電機株式会社
  • 東京地下鉄株式会社

Dates

Publication Date
20260507
Application Date
20241021

Claims (8)

  1. A detection data acquisition unit acquires detection data representing the detected value of a physical quantity that depends on the soundness of the air compressor, which is detected at a predetermined detection point of the air compressor that generates compressed air. A data storage unit that stores judgment criterion data relating to the physical quantity, which represents the criteria for determining whether the air compressor is in a normal state or not, and the criteria for determining whether the air compressor is in a state requiring inspection or in a state of abnormality. The health determination unit uses the detection data acquired by the detection data acquisition unit or the processed data obtained by performing calculations on the detection data and the determination criterion data stored in the data storage unit to determine whether the air compressor is in the normal state, the state requiring inspection, or the state of abnormality, and if it is determined that the air compressor is in the state requiring inspection, it outputs an inspection notification information indicating that the component of the air compressor is in the state requiring inspection, and if it is determined that the air compressor is in the state of abnormality, it outputs an abnormality notification information indicating that the component of the air compressor is in the state of abnormality, and A health determination device equipped with [a specific feature].
  2. The air compressor has a fluid flow channel through which fluid flows, The detection data represents the detected pressure of the fluid flowing through the fluid pipeline. The health determination device according to claim 1.
  3. The health determination device is A pressure difference calculation unit calculates the processed data representing the magnitude of the pressure fluctuation by performing a calculation process including the difference on the detection data acquired by the detection data acquisition unit. Furthermore, The health determination unit performs the health determination using the processed data calculated by the pressure difference calculation unit and the determination criteria data, which includes the determination criteria regarding the magnitude of the pressure fluctuation and is stored in the data storage unit. The health determination device according to claim 2.
  4. The detection data includes the detected value of the fluid pressure at each of a predetermined number of detection points in the fluid flow pipeline. The health determination device is A pressure loss calculation unit calculates the calculated data representing the pressure loss of the fluid by performing the calculation process on the detection data acquired by the detection data acquisition unit to determine the pressure difference between one detection point and another detection point. Furthermore, The health determination unit performs the health determination using the processed data calculated by the pressure loss calculation unit and the determination criteria data, which includes the determination criteria related to the pressure loss and is stored in the data storage unit. The health determination device according to claim 2.
  5. The air compressor has a fluid flow channel through which fluid flows, The detection data represents the detected temperature of the fluid flowing through the fluid pipeline. The health determination device according to claim 1.
  6. The health determination device is A temperature deviation calculation unit calculates the calculated data representing the degree of deviation of the temperature from the reference value by performing a calculation process on the detection data acquired by the detection data acquisition unit to calculate the deviation from a predetermined reference value. Furthermore, The health determination unit performs the health determination using the processed data calculated by the temperature deviation calculation unit and the determination criteria data stored in the data storage unit, which includes the determination criteria relating to the degree of deviation of the temperature from the reference value. The health determination device according to claim 5.
  7. A health determination device according to any one of claims 1 to 6, The air compressor that generates the compressed air, A braking device that uses the compressed air generated by the air compressor to apply a braking force to a railway vehicle to reduce the speed of the railway vehicle, An air brake system equipped with this system.
  8. A normal determination step in which a computer determines whether or not the air compressor is in the normal state, using detection data representing detected values of physical quantities dependent on the health of the air compressor, which are detected at predetermined locations in the air compressor that generate compressed air, or processed data obtained by performing calculations on the detection data, and a first threshold value for the physical quantity that represents the criteria for determining whether or not the air compressor is in the normal state. If the computer determines in the normal determination step that the air compressor is not in the normal state, it performs an abnormality determination step to determine whether the air compressor is in the state requiring inspection or the state of abnormality, using the detected data or the processed data and a second threshold value relating to a physical quantity that represents a criterion for determining whether the air compressor is in a state requiring inspection or a state of abnormality. If the computer determines in the abnormality determination step that the air compressor is in the state requiring inspection, it performs a state requiring inspection notification step that outputs the component of the air compressor that is in the state requiring inspection and state that the component is in the state requiring inspection. If the computer determines in the abnormality determination step that the air compressor is in the abnormal condition, it performs an abnormality notification step that outputs abnormality notification information indicating the component of the air compressor that is in the abnormal condition and that the component is in the abnormal condition. A method for determining soundness, including [specific details omitted].

Description

This disclosure relates to a health determination device, an air brake system, and a health determination method. As disclosed in Patent Document 1, an abnormality detection device is known that determines whether or not there is an abnormality in an air compressor that generates compressed air used in the air brakes of railway vehicles. Japanese Patent Publication No. 2018-1997 Conceptual diagram showing the configuration of the air brake system according to Embodiment 1Conceptual diagram showing the configuration of the air compressor and health determination device according to Embodiment 1.Conceptual diagram showing the function of the health determination device according to Embodiment 1Flowchart of the first integrity determination process for the oil mist filter according to Embodiment 1Flowchart of the first integrity determination process for the oil filter according to Embodiment 1This graph shows the relationship between the amount of residual lubricating oil in the oil separator according to Embodiment 1 and the pressure of the lubricating oil returning to the air compressor.Flowchart of the first health determination process for the lubrication oil circulation system according to Embodiment 1A graph showing the relationship between the amount of residual lubricating oil and the temperature of the lubricating oil in the oil separator according to Embodiment 1.Flowchart of the second health determination process for the lubrication oil circulation system according to Embodiment 1Conceptual diagram showing the function of the health determination device according to Embodiment 2Flowchart of the third health determination process for the lubrication oil circulation system according to Embodiment 2Flowchart of the fourth health determination process for the lubrication oil circulation system according to Embodiment 2Flowchart of the second integrity determination process for the oil mist filter according to Embodiment 2Flowchart of the second integrity determination process for the oil filter according to Embodiment 2 The following description of the air brake system according to the embodiment will be given with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals. [Embodiment 1] Figure 1 shows the configuration of the air brake system 400 according to this embodiment. This air brake system 400 is mounted on a railway vehicle and brakes the railway vehicle in response to brake operations performed by the occupants or commands from an automatic braking device. The air brake system 400 comprises an air compressor 100 that generates compressed air, a brake device 300 that uses the compressed air generated by the air compressor 100 to apply a braking force to the railway vehicle to reduce its speed, and a health determination device 200 that determines the health of the air compressor 100. The braking system 300 utilizes the pressure of compressed air generated by the air compressor 100 to press brake shoes against the wheels of the railway vehicle. This creates friction between the brake shoes and the wheels, thereby applying a braking force to the railway vehicle. As shown in Figure 2, the air compressor 100 comprises an air filter 101 that captures dust particles in the air, and an air compressor 102 that draws in air through the air filter 101, compresses the drawn-in air, and discharges it. The air compressor 102 is an oil-lubricated type that uses lubricating oil, and when air is compressed by the air compressor 102, some of the lubricating oil is mixed into the compressed air. Therefore, the air compressor 100 includes an oil separator 103 that separates the lubricating oil components from the mixture of compressed air discharged by the air compressor 102 and lubricating oil, and an oil mist filter 104 that captures the mist-like lubricating oil that could not be separated by the oil separator 103. Furthermore, the air compressor 100 includes an aftercooler 105 that cools the compressed air that has passed through the oil mist filter 104, a drain filter 106 that captures the drain generated in the aftercooler 105 from the compressed air that has passed through the aftercooler 105, a dehumidifier 107 that dehumidifies the compressed air that has passed through the drain filter 106, and a main air reservoir 108 that stores the compressed air that has been dehumidified by the dehumidifier 107. The compressed air stored in the main air reservoir 108 is supplied to the brake device 300 shown in Figure 1. Furthermore, the air compressor 100 includes a fluid flow channel 109 connecting the air filter 101 and the air compressor 102, a fluid flow channel 110 connecting the air compressor 102 and the oil separator 103, a fluid flow channel 111 connecting the oil separator 103 and the oil mist filter 104, and a fluid flow channel 112 connecting the oil mist filter 104, the aftercooler 105, the drain filter 106, the dehumidifier 107, and the