Air spring test monitoring device and application method

Abstract

The application discloses an air spring test monitoring device and an application method, and belongs to the technical field of air spring monitoring devices, which comprises an air compressor, a three-way pipeline, an air spring, an air pressure sensor, an ammeter, multiple indicator lights, a vibration sensor, a relay and a power supply, wherein the power supply supplies power to all electrical devices; the air compressor, the air spring and the air pressure sensor are connected with each other through the three-way pipeline, the air compressor is used for charging and discharging the air spring, the air pressure sensor is connected with the relay, the air pressure sensor is used for identifying the air pressure value in the air spring, and the air pressure value is converted into an electric signal and then transmitted to the ammeter through the relay, so that the identified air pressure current signal can be displayed on the ammeter; the vibration sensor is arranged on the air spring and connected with the relay; and the air spring test can be monitored in real time, so that the pressure change of the air spring caused by untimely inspection does not cause inaccurate test data.

Description

Technical Field

[0001] This invention belongs to the technical field of air spring monitoring devices, specifically an air spring testing and monitoring device and its application method. Background Technology

[0002] Automotive air spring suspension technology is one of the most cutting-edge automotive technologies, and it is increasingly being applied to various levels of passenger cars and electric vehicles as technology advances. However, there are many types of air spring suspensions, with complex structures, requiring short development cycles. This necessitates completing relevant air spring tests as quickly as possible to meet the demands of rapid development. Furthermore, the durability testing of air springs requires multiple adjustments to the air spring pressure, necessitating a convenient device for inflating and deflating the air springs and for real-time monitoring to handle these adjustments during testing. This invention, based on the working mode of air springs, innovatively designs an air spring testing and monitoring device and its application method. Summary of the Invention

[0003] To address the above problems, this invention provides an air spring testing and monitoring device and application method, including an air compressor, a three-way pipe, an air spring, a pressure sensor, an ammeter, multiple indicator lights, a vibration sensor, a relay, and a power supply. The power supply provides power to all electrical components. The air compressor, air spring, and pressure sensor are interconnected via the three-way pipe. The air compressor is used to charge and discharge air into the air spring. The pressure sensor is connected to the relay and identifies the gas pressure value inside the air spring. After converting the gas pressure value into an electrical signal, it is transmitted to the ammeter via the relay. The identified gas pressure current signal is displayed on the ammeter, and the operation of the circuit is monitored via a second indicator light. A vibration sensor is installed on the air spring and is connected to the relay. The operation of the air spring is detected via a first indicator light. This invention enables real-time monitoring of air spring tests, avoiding inaccurate test data caused by pressure changes due to untimely inspections. Electrical monitoring replaces manual inspection, greatly improving operational efficiency. It has the advantages of simple use, strong practicality, reasonable structure, and low cost, expanding the field of chassis air spring testing.

[0004] The technical solution of this invention is as follows: an air spring test monitoring device, comprising: an air compressor, a three-way pipe, an air spring, a pressure sensor, an ammeter, multiple indicator lights, a vibration sensor, a relay, and a power supply, wherein the power supply supplies power to all electrical components; the air compressor, air spring, and pressure sensor are interconnected via the three-way pipe, the air compressor is used to charge and discharge air into the air spring, the pressure sensor is connected to the relay, the pressure sensor is used to identify the gas pressure value inside the air spring, converts the gas pressure value into an electrical signal, and transmits it to the ammeter via the relay, which can display the identified air pressure current signal on the ammeter, and monitors the circuit operation through a second indicator light; a vibration sensor is provided on the air spring, the vibration sensor is connected to the relay, and the operation of the air spring is detected through a first indicator light.

[0005] Furthermore, the power source is a 12V battery.

[0006] Furthermore, the tee pipe is made of PVC.

[0007] Furthermore, the air pressure sensor is a tire pressure sensor.

[0008] Furthermore, the indicator lights are neon lights.

[0009] Furthermore, the vibration sensor is a KS76C10 type vibration sensor.

[0010] Furthermore, the gas pressure inside the air spring is 7-8 bar.

[0011] A method for applying an air spring test monitoring device includes the following steps:

[0012] S1 is used to build an air spring test and monitoring device;

[0013] S2 performs testing on the assembled air spring test and monitoring device;

[0014] The test begins at S3. During the test, the vibration sensor identifies the test status and determines whether the air spring is in a non-test period. When the air spring is in a non-test period, the air pressure sensor monitors the air pressure value of the air spring. If the air pressure value is within the specified range, the test continues. If the air pressure value is not within the specified range, the second indicator light will turn red, prompting manual intervention to adjust the air spring by inflating or deflating it.

[0015] Furthermore, in step S2, the detection specifically involves detecting the upper and lower limit current values ​​when the gas pressure value inside the air spring reaches a specified range.

[0016] The beneficial effects of this invention are as follows:

[0017] This invention enables real-time monitoring of air spring tests, avoiding inaccurate test data caused by pressure changes due to untimely inspections. Electrically controlled monitoring replaces manual inspection, significantly improving operational efficiency. It boasts advantages such as simplicity, practicality, rational structure, and low cost, expanding the field of chassis air spring testing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the device of the present invention.

[0019] Figure 2 This is a flowchart of the method of the present invention.

[0020] In the picture:

[0021] 1. Air compressor, 2. T-connector, 3. Air spring, 4. Pressure sensor, 5. Ammeter, 6. Vibration sensor, 7. Relay, 8. Power supply, 9. First indicator light, 10. Second indicator light. Detailed Implementation

[0022] It should be noted that in the description of this invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation.

[0023] In this invention, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; a connection can be a mechanical connection or an electrical connection; a link can be a direct connection or an indirect connection through an intermediate medium, and can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0024] An air spring test monitoring device includes an air compressor 1, a three-way pipe 2, an air spring 3, a pressure sensor 4, an ammeter 5, multiple indicator lights, a vibration sensor 6, a relay 7, and a power supply 8. (See attached image) Figure 1 .

[0025] Power supply 8 is a 12V battery that supplies power to all electrical components.

[0026] The air compressor 1, air spring 3, and air pressure sensor 4 are interconnected via a three-way pipe 2. The air compressor 1 is used to charge and release air into the air spring 3. The air pressure sensor 4 is connected to a relay 7 and is used to identify the gas pressure value inside the air spring 3. After converting the gas pressure value into an electrical signal, it is transmitted to the ammeter 5 via the relay 7. The identified air pressure current signal can be displayed on the ammeter 5. The operation of the circuit is monitored through the second indicator light 10.

[0027] The air spring 3 is equipped with a vibration sensor 6, which is connected to a relay 7. The operation of the air spring 3 is detected by the first indicator light 9.

[0028] T-shaped pipe 2 is made of PVC.

[0029] Pressure sensor 4 is a tire pressure sensor.

[0030] The indicator light is a neon light.

[0031] Vibration sensor 6 is a KS76C10 type vibration sensor.

[0032] The gas pressure inside the air spring 3 is 7-8 bar.

[0033] The first indicator light 9 only displays a green light when working, indicating that the circuit is working normally; the second indicator light 10 has two states when working: one is a red light, indicating that the air spring pressure is outside the specified range, and the other is a green light, indicating that the air spring pressure is within the specified range.

[0034] The display color of the second indicator light 10 is achieved by adjusting its built-in dimmer device, and the specific color conversion current is determined according to the current value range detected before the test.

[0035] A method for applying an air spring test monitoring device includes the following steps:

[0036] S1: Preparatory work before the test. Prepare the power supply (8), three-way pipe (2), air compressor (1), air pressure sensor (4), ammeter (5), multiple indicator lights, vibration sensor (6), relay (7), and set up the test bench.

[0037] S2: Complete the monitoring circuit layout and testing, and detect the upper and lower limit current values ​​when the gas pressure value inside the air spring 3 reaches the specified range. Inflate the air spring 3 with air compressor 1. Connect a three-way pipe 2 between the air spring 3 and air compressor 1. Connect a pressure sensor 4 to the three-way pipe 2. Connect the pressure sensor 4 to the ammeter 5 via relay 7. Connect the ammeter 5 to the second indicator light 10. The ammeter 5 receives and displays the current signal from the pressure sensor 4 in real time. Inflate the air spring 3 with air compressor 1. During this process, observe and record the ammeter readings when the gas pressure value inside the air spring 3 reaches the specified pressure range.

[0038] S3: Complete the vibration circuit layout. Attach the vibration sensor 6 to the surface of the air spring 3, and connect the vibration sensor 6 to the relay 7.

[0039] S4: Complete the gas path layout for charging and discharging.

[0040] S5: Start the test. When the test is underway, the vibration sensor 6 transmits a current signal, which, through the relay 7, causes the relay 7 to engage, activating the monitoring circuit. The vibration sensor 6 identifies the test status and determines whether the air spring 3 is in a non-test period. When the air spring 3 is in a non-test period, the air pressure sensor 4 monitors the air pressure value of the air spring 3. If the air pressure value does not meet the specified range, the second indicator light 10 displays a red light, prompting manual intervention to adjust the inflation and deflation of the air spring 3.

[0041] This invention determines the current range by detecting and observing the ammeter readings of the gas pressure inside the air spring within a specified pressure range before testing. A corresponding color display state is then set for the dimmer device built into the neon light within this current range. During the test, a vibration sensor transmits a current signal through a relay, activating the relay and activating the monitoring circuit. The status indicator light on the monitoring circuit then uses color to indicate in real-time whether the air pressure inside the air spring meets the specified value. If it does not meet the value, the status indicator light turns red, prompting manual intervention to adjust the air spring by inflation or deflation.

[0042] Before the test, the air spring needs to be inflated using an air compressor. A T-junction is connected between the air spring and the air compressor, and a pressure sensor (powered by a 12V battery) is connected to the T-junction. The pressure sensor is then connected to an ammeter (also powered by a 12V battery) using a wiring harness. A relay connects the pressure sensor and the ammeter (the relay circuit is controlled by the current from the vibration sensor). The ammeter is connected to a status indicator light and receives and displays the current signal from the pressure sensor in real time. The air spring is then inflated using the air compressor. During this process, the ammeter readings are observed and recorded within the specified pressure range. A vibration sensor (powered by a 12V battery) is attached to the surface of the air spring. The vibration sensor is connected to a relay (when the test is in progress, the vibration sensor transmits a current signal, which, through the relay, causes the relay to engage and activate the monitoring circuit). The vibration sensor identifies the test status and determines whether the air spring is in a non-test period. When the air spring is in a non-test period, the air pressure sensor monitors the air pressure value of the air spring. If the air pressure value does not meet the specified range, the status indicator light will turn red, prompting manual intervention to adjust the air spring by inflating or deflating it.

[0043] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications, equivalent substitutions, and improvements made by those skilled in the art within the scope of the technology disclosed in the present invention, and within the spirit and principles of the present invention, should be included within the scope of protection of the present invention. Furthermore, all content not described in detail in this specification is prior art known to those skilled in the art.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. An air spring test monitoring device, characterized in that, include: The system includes an air compressor, a three-way pipe, an air spring, a pressure sensor, an ammeter, multiple indicator lights, a vibration sensor, a relay, and a power supply. The power supply provides power to all electrical components. The air compressor, air spring, and pressure sensor are interconnected via the three-way pipe. The air compressor is used to charge and discharge air into the air spring. The pressure sensor is connected to the relay and identifies the gas pressure value inside the air spring. After converting the gas pressure value into an electrical signal, it is transmitted to the ammeter via the relay. The identified gas pressure current signal is displayed on the ammeter. The second indicator light monitors the circuit operation. The air spring is equipped with a vibration sensor, which is connected to the relay. The first indicator light detects the operation of the air spring.

2. The air spring test monitoring device as described in claim 1, characterized in that, The power supply is multiple 12V batteries.

3. The air spring test monitoring device as described in claim 2, characterized in that, The tee pipe is made of PVC.

4. The air spring test monitoring device as described in claim 3, characterized in that, The air pressure sensor is a tire pressure sensor.

5. The air spring test monitoring device as described in claim 4, characterized in that, The indicator light is a neon light.

6. An air spring test monitoring device as described in any one of claims 1 to 5, characterized in that, The vibration sensor is a KS76C10 type vibration sensor.

7. The air spring test monitoring device as described in claim 6, characterized in that, The gas pressure inside the air spring is 7-8 bar.

8. An application method for an air spring test monitoring device, characterized in that, Includes the following steps: S1 constructs the apparatus as described in any one of claims 1 to 7; S2 tests the assembled device; The test begins at S3. During the test, the vibration sensor identifies the test status and determines whether the air spring is in a non-test period. When the air spring is in a non-test period, the air pressure sensor monitors the air pressure value of the air spring. If the air pressure value is within the specified range, the test continues. If the air pressure value is not within the specified range, the second indicator light will turn red, prompting manual intervention to adjust the air spring by inflating or deflating it.

9. The application method of the air spring test monitoring device as described in claim 8, characterized in that, In step S2, the detection specifically involves detecting the upper and lower limit current values ​​when the gas pressure value inside the air spring reaches the specified range.

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