Test system and test method for endurance test of air suspension airbag

Abstract

The invention provides a test system and a test method for an endurance test of an air suspension airbag. In the test system, an air compressor provided with a pressure release valve is electrically connected with a direct-current power supply through a relay; the air compressor is connected with an air storage tank and an air bag through air channels, the air compressor valve, the air bag valve and the air storage tank valve are correspondingly installed on the air channels of the air compressor, the air bag and the air storage tank, the pressure sensor is installed on the air channel connected with the air compressor, the air bag and the air storage tank, and the suspension assembly provided with the air bag is provided with the vehicle body height sensor. An actuating cylinder is connected with an air channel of the air bag. A test controller is in signal connection with the electric control element and the sensor. The test method comprises the following steps: firstly, carrying out a fault test on an accompanying sample piece to ensure normal work, and then carrying out an endurance test on the air suspension airbag. The test is carried out after the accompanying sample piece is confirmed to have no fault, stable pressure load is applied to the air bag in the inflating and deflating process of the air bag, and the test process is closer to the actual working condition.

Description

technical field

[0001] The invention belongs to the technical field of durability tests of air suspension airbags, and in particular relates to a test system and a test method for durability tests of air suspension airbags. Background technique

[0002] The so-called air suspension is to form compressed air through the air compressor, control the corresponding air compressor and exhaust valve according to the change of the body height, inflate or deflate the airbag, and then raise or lower the ground clearance of the vehicle chassis , to increase the stability of the high-speed body or the passability of complex road conditions. With the improvement of users' requirements for driving comfort, more and more vehicles are equipped with air suspension.

[0003] Compared with the traditional suspension, due to the complex structure of the air suspension, the probability and frequency of failure will be higher than that of the traditional coil spring suspension system. As one of ...

Examples

specific Embodiment approach

[0089] In order to clearly and completely describe the technical solution of the present invention and its specific working process, in conjunction with the accompanying drawings, the specific implementation of the present invention is as follows:

[0090] In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise specified limit. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

[0091] In the present i...

Embodiment 1

[0094] The present embodiment one discloses a kind of test system used for air suspension airbag durability test, such as figure 1 As shown, the test system includes: an air compressor 2, an electromagnetic master valve 3, an air bag 5, an air storage tank 6, an actuator 7 and a test controller 10; wherein:

[0095] The air compressor 2 is electrically connected with the DC power supply 1 to form a power supply circuit, and a relay 4 is installed on the power supply circuit, and the power supply or disconnection of the DC power supply 1 to the air compressor 2 is realized by controlling the relay 4 to be closed or disconnected. Electricity;

[0096] A pressure relief valve 11 is integrally installed in the air compressor 2, and the air in the air compressor 2 is discharged by opening the pressure relief valve 11, so that the air pressure in the air compressor 2 is unloaded;

[0097] A temperature sensor 12 is also integrated in the air compressor 2, and the temperature sensor...

Embodiment 2

[0115] This embodiment 2 discloses a test method for air suspension airbag durability test, the test method described in this embodiment 2 is based on the test system for air suspension airbag durability test described in the foregoing embodiment 1, The test method includes: firstly carry out a round of failure test on the accompanying sample, after confirming that the accompanying sample is working normally, then carry out the endurance test on the air suspension airbag, and carry out the endurance test on the air suspension airbag During the test, control methods for emergencies were also set up.

[0116] The specific steps of the test method are as follows:

[0117] (1) Accompanying sample failure test:

[0118] Described accompanying sample comprises: air compressor 2, electromagnetic master valve 3, quarter suspension assembly 8 and air storage tank 6, such as figure 2 As shown, the fault test process of the accompanying sample is as follows:

[0119] A1, the test con...

technical field

[0001] The invention belongs to the technical field of durability tests of air suspension airbags, and in particular relates to a test system and a test method for durability tests of air suspension airbags. Background technique

[0002] The so-called air suspension is to form compressed air through the air compressor, control the corresponding air compressor and exhaust valve according to the change of the body height, inflate or deflate the airbag, and then raise or lower the ground clearance of the vehicle chassis , to increase the stability of the high-speed body or the passability of complex road conditions. With the improvement of users' requirements for driving comfort, more and more vehicles are equipped with air suspension.

[0003] Compared with the traditional suspension, due to the complex structure of the air suspension, the probability and frequency of failure will be higher than that of the traditional coil spring suspension system. As one of ...

Examples

specific Embodiment approach

[0089] In order to clearly and completely describe the technical solution of the present invention and its specific working process, in conjunction with the accompanying drawings, the specific implementation of the present invention is as follows:

[0090] In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise specified limit. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

[0091] In the present i...

Embodiment 1

[0094] The present embodiment one discloses a kind of test system used for air suspension airbag durability test, such as figure 1 As shown, the test system includes: an air compressor 2, an electromagnetic master valve 3, an air bag 5, an air storage tank 6, an actuator 7 and a test controller 10; wherein:

[0095] The air compressor 2 is electrically connected with the DC power supply 1 to form a power supply circuit, and a relay 4 is installed on the power supply circuit, and the power supply or disconnection of the DC power supply 1 to the air compressor 2 is realized by controlling the relay 4 to be closed or disconnected. Electricity;

[0096] A pressure relief valve 11 is integrally installed in the air compressor 2, and the air in the air compressor 2 is discharged by opening the pressure relief valve 11, so that the air pressure in the air compressor 2 is unloaded;

[0097] A temperature sensor 12 is also integrated in the air compressor 2, and the temperature sensor...

Embodiment 2

[0115] This embodiment 2 discloses a test method for air suspension airbag durability test, the test method described in this embodiment 2 is based on the test system for air suspension airbag durability test described in the foregoing embodiment 1, The test method includes: firstly carry out a round of failure test on the accompanying sample, after confirming that the accompanying sample is working normally, then carry out the endurance test on the air suspension airbag, and carry out the endurance test on the air suspension airbag During the test, control methods for emergencies were also set up.

[0116] The specific steps of the test method are as follows:

[0117] (1) Accompanying sample failure test:

[0118] Described accompanying sample comprises: air compressor 2, electromagnetic master valve 3, quarter suspension assembly 8 and air storage tank 6, such as figure 2 As shown, the fault test process of the accompanying sample is as follows:

[0119] A1, the test con...

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