Simple test board for ASU of air suspension
By using the ASU simple test bench for air suspension and controlling the air pressure with an air tank and a pressure-stabilized air source, the problem of product function testing in the early stages of design was solved, and low-cost and efficient product verification was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DAYE PUCHANG INTELLIGENT TECHNOLOGY CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-05-19
AI Technical Summary
Existing technologies lack simple methods for quickly testing product functionality in the early stages of air suspension manufacturing, resulting in high production costs and difficulty in meeting verification requirements.
Design a simple test bench for air suspension (ASU). It uses an air tank and a pressure-stabilized air source combined with a solenoid valve to control the air pressure. The test process is simplified and the skill requirements of the operators are reduced through centralized operation via a control cabinet.
It enables rapid testing of product functionality in the early stages of design, reduces production costs, improves testing accuracy and efficiency, and meets product verification requirements.
Smart Images
Figure CN224262825U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air suspension testing technology, specifically to a simple ASU air suspension test bench. Background Technology
[0002] In automotive suspension systems, air suspension is widely used in the vehicle field due to its variable stiffness and active adjustment features. Based on different road conditions and signals from distance sensors, the vehicle's computer can determine changes in vehicle height and then control the air compressor and exhaust valves to automatically compress or extend the springs, thereby lowering or raising the chassis ground clearance to increase high-speed vehicle stability or passability in complex road conditions. However, the manufacturing process of air suspension requires ASU testing. Currently, different companies using ASU employ varying methods for verifying the mechanical functions of their products. Most rely on comprehensive performance testing benches to verify basic functions, which carries significant risk and cost due to the high cost and difficulty in verifying product functionality during the initial design phase. Therefore, a simplified ASU testing bench for air suspension is proposed. Utility Model Content
[0003] In view of this, the present invention provides a simple ASU test bench for air suspension, which can quickly test the function of the product in the early stage of design, reduce production costs, and meet the requirements for product verification.
[0004] To solve the above-mentioned technical problems, this utility model provides a simple air suspension (ASU) test bench, including a product fixing fixture, with the workpiece to be tested fixed on top of the product fixing fixture. The air inlet end of the workpiece to be tested is connected to an air storage tank 1 through a pipeline, and the air outlet end of the workpiece to be tested is connected to an air storage tank 2 or the air spring of the workpiece to be tested, for testing the air pressure and verifying whether the workpiece to be tested meets the functional requirements of production.
[0005] Both gas storage tank 1 and gas storage tank 2 are connected to a pressure-stabilized gas source via pipelines. Each pipeline of the pressure-stabilized gas source is equipped with a solenoid valve. After the product under test is connected to the test pipeline and it is confirmed to be correct, the pressure-stabilized gas source is used to pre-charge gas storage tank 1 or gas storage tank 2.
[0006] Both gas storage tank 1 and gas storage tank 2 are equipped with vent valves for releasing the gas inside the tank into the atmosphere. After the test of the workpiece is completed, the compressed gas in gas storage tank 1 and gas storage tank 2 can be released into the atmosphere.
[0007] Solenoid valve 2 is installed at the pipe connection between the workpiece being tested and gas storage tank 1 and gas storage tank 2 to control the on / off of compressed gas.
[0008] The workpiece under test is electrically connected to a control cabinet via a wire harness. The control cabinet is equipped with several push-button switches to control the opening and closing of the main power supply, motor, and various solenoid valves.
[0009] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:
[0010] 1. When using this utility model, the functionality of the product can be quickly tested in the early stages of design, reducing production costs and avoiding the need to invest heavily in customizing complex comprehensive performance test benches in the early stages of research and development, thus meeting the requirements for product verification.
[0011] 2. When this utility model is used, two air tanks are used in conjunction with a pressure-stabilizing air source and a solenoid valve control, which can effectively stabilize the air source pressure in the test pipeline, reduce the impact of air source fluctuations on the test results, and thus more accurately verify the performance of the workpiece under the set pressure, and improve the stability and accuracy of the test.
[0012] 3. When this utility model is used, the control cabinet is connected to the workpiece under test through a wiring harness, and is equipped with push-button switches to centrally control the main power supply and the opening and closing of each solenoid valve. This design simplifies the testing process, reduces the skill requirements of operators, and improves testing efficiency. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the gas path flow of Method 1 of this utility model;
[0014] Figure 2 This is a schematic diagram of the gas path flow of Method 2 of this utility model.
[0015] Explanation of reference numerals in the attached diagram: 100, workpiece under test; 200, air tank one; 300, air tank two; 400, regulated air source; 500, solenoid valve one; 600, vent valve; 700, solenoid valve two; 801, control cabinet; 802, wiring harness; 803, push-button switch. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-2 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.
[0017] According to one embodiment of the present invention, such as Figure 1As shown: This embodiment provides a simple air suspension (ASU) test bench, including a product fixing fixture. A test workpiece 100 is fixed on top of the product fixing fixture. The air inlet of the test workpiece 100 is connected to an air storage tank 200 via a pipe, and the air outlet of the test workpiece 100 is connected to an air storage tank 300 or the air spring of the test workpiece 100 via a pipe, for testing air pressure and verifying whether the test workpiece 100 meets the functional requirements for production. The test workpiece 100 can be placed on the product fixing fixture and fixed, and then connected to the control cabinet 801 via a wiring harness 802. Make an electrical connection, then connect the air inlet pipe of air tank 200 to the air inlet of the workpiece 100 under test, and connect the air outlet pipe of air tank 300 to the air outlet of the workpiece 100 under test. Air tank 300 is used to replace the air spring for simulation. The operator can open solenoid valve 500 to pre-charge air tank 200 through the pressure stabilizing air source 400, and open solenoid valve 700. The air pressure enters the workpiece 100 under test through the air inlet pipe, and then enters the air outlet pipe of air tank 300 and is discharged into air tank 300 to simulate the air suspension system and conduct testing.
[0018] Furthermore, both gas storage tank 200 and gas storage tank 300 are connected to a pressure stabilizing gas source 400 via pipelines. Each of the pipelines of the pressure stabilizing gas source 400 is equipped with a solenoid valve 500. After the product under test is connected to the test pipeline and it is confirmed to be correct, a pre-filling operation is performed.
[0019] Furthermore, both the first gas tank 200 and the second gas tank 300 are equipped with a venting valve 600 for releasing the gas inside the tank into the atmosphere. After the test workpiece 100 is completed, the venting valve 600 can be opened to release the compressed gas in the first gas tank 200 and the second gas tank 300 into the atmosphere.
[0020] Furthermore, solenoid valves 700 are installed at the pipe connections between the workpiece 100 and the gas storage tanks 200 and 300 to control the flow of compressed gas.
[0021] Furthermore, the workpiece 100 being tested is electrically connected to a control cabinet 801 via a wiring harness 802. The control cabinet 801 is equipped with several push-button switches 803, which are used to control the opening and closing of the main power supply, the motor, and each solenoid valve.
[0022] Based on Embodiment 1, there can be another embodiment of the usage method, such as... Figure 2 As shown, when performing air suspension (ASU) testing, the air inlet end of the workpiece 100 under test can be connected to an air tank, and the air outlet end of the workpiece 100 under test can be connected to an air spring for storing compressed air and simulating the operation of the ASU in the whole vehicle.
[0023] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.
Claims
1. An air suspension unit (ASU) simple test bench, comprising a product fixing tool, a workpiece (100) to be tested is fixed above the product fixing tool, characterized in that: The air inlet of the workpiece (100) is connected to an air storage tank (200) via a pipeline, and the air outlet of the workpiece (100) is connected to an air storage tank (300) or an air spring of the workpiece (100) via a pipeline, for testing the air pressure.
2. An air suspension ASU simple test bench according to claim 1, characterized in that: Both the first gas storage tank (200) and the second gas storage tank (300) are connected to a pressure-stabilizing gas source (400) via pipes, and a solenoid valve (500) is installed at the pipe of the pressure-stabilizing gas source (400).
3. An air suspension ASU bench test rig as claimed in claim 1, characterized in that: The gas storage tank 1 (200) and the gas storage tank 2 (300) are respectively equipped with a vent valve (600) 1 and a vent valve (600) 2 for venting the gas inside the tank into the atmosphere.
4. An air suspension ASU bench test rig as claimed in claim 1, characterized in that: Solenoid valve 2 (700) is installed at the pipe connection between the workpiece under test (100) and gas storage tank 1 (200) and / or gas storage tank 2 (300).
5. An air suspension ASU bench test rig as claimed in claim 1, characterized in that: The workpiece under test (100) is electrically connected to a control cabinet (801) via a wire harness (802).
6. An air suspension ASU bench test rig as claimed in claim 5, characterized in that: The control cabinet (801) is equipped with several push-button switches (803) for controlling the opening and closing of the main power supply, motor and various solenoid valves.