Passenger car air suspension teaching test bed
By designing a teaching test bench for air suspension in passenger vehicles, the problem of poor flexibility of existing equipment was solved, enabling flexible fault setting and testing, and improving teaching effectiveness and practicality of assessment.
Patent Information
- Application Number
- CN202423115449.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-16
AI Technical Summary
Existing bus driver training equipment lacks flexibility and makes it difficult to set up air suspension malfunctions independently and conduct effective assessments.
A teaching test bench for air suspension in a passenger vehicle was designed, comprising a bench, airbag, drive axle, electronic control system, control panel, and compressed air source. It simulates an air suspension system and has fault setting and detection functions. The electronic control system is the same as that of the actual vehicle, and the control panel provides fault setting and detection interfaces.
It enables flexible fault setting and detection, improves teaching effectiveness, and facilitates student assessment and demonstration of air suspension principles.
Smart Images
Figure CN223582577U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to vehicle teaching bench technical field, concretely relates to a passenger car air suspension teaching test bench. BACKGROUND
[0002] Passenger car drivers need to know the vehicle state clearly, and need to learn and train before on duty, but the passenger car is large in size and is compact in internal structure, is inconvenient to show and teach, and the existing whole vehicle test bench is poor in flexibility, cannot set faults to the air suspension alone, and is poor in teaching effect and inconvenient to examine students. UTILITY MODEL CONTENTS
[0003] The utility model solves the technical problem that the existing passenger car driver training is difficult, and is inconvenient to set faults and examine.
[0004] In order to solve the above technical problem, the utility model provides a passenger car air suspension teaching test bench, including test bench, air bag, drive axle, electric control system, operation panel and compressed air source, the air bag is equipped with multiple, is arranged at the bottom in the test bench respectively, the air bag upper side is connected with support rod, the support rod upper end is equipped with support frame, the drive axle is arranged on the support frame, the electric control system includes ECU, power supply, air pressure switch, drive axle combination valve and front axle combination valve, the power supply, air pressure switch, drive axle combination valve, front axle combination valve all are connected to ECU, the air pressure switch is connected with power supply, the compressed air source and air bag all are connected with drive axle combination valve and front axle combination valve, the operation panel is connected with electric control system.
[0005] Optionally, the test bench between the air bag and the support frame is provided with a cross bar, the support rod passes through the cross bar, and a lubricating sleeve is sleeved on the support rod at the lower end of the cross bar, and the lubricating sleeve is connected with the cross bar.
[0006] Optionally, a height sensor is arranged on the test bench on one side of the air bag, the height sensor is connected with the upper end of the air bag through a swing rod, and the height sensor is connected with the ECU.
[0007] Optionally, a fault setting area and a detection area are arranged on the operation panel, a plurality of jacks are arranged on the fault setting area, the jacks are respectively connected in series on the connecting circuit between the power supply, the air pressure switch, the height sensor, the drive axle combination valve, the front axle combination valve and the ECU, and a plug is arranged on the jack, and a plurality of detection holes are arranged on the detection area in parallel with the jacks.
[0008] Optionally, a working condition indicating lamp is arranged on the operation panel.
[0009] Optionally, a universal wheel is arranged below the test bench.
[0010] In conclusion, the utility model discloses air suspension part is established on the bench, and the circuit connection part is same with the original vehicle, and setting operation panel can set the fault conveniently, and the operation is convenient, and the flexibility is high, and the teaching effect is good, and the practicality of examination is strong. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is bench structure schematic diagram of the utility model;
[0012] Figure 2 It is bench structure cross section structure schematic diagram of the utility model;
[0013] Figure 3 It is electric control system connection schematic diagram of the utility model;
[0014] Figure 4 It is operation panel schematic diagram of the utility model;
[0015] In the drawing: 1, bench;2, air bag;3, drive axle;4, support rod;5, support frame;6, cross bar;7, lubrication sleeve;8, universal wheel;9, power supply;10, air pressure switch;11, drive axle combination valve;12, height sensor;13, front axle combination valve;14, operation panel;15, set fault area;16, detection area;17, jack;18, working condition indicating lamp;19, compressed air source. DETAILED DESCRIPTION
[0016] The following in combination Figures 1-4 The utility model is further explained in detail.
[0017] The utility model discloses a kind of passenger car air suspension teaching test bench, refer to Figure 1 And Figure 3 , including bench 1, air bag 2, drive axle 3, electric control system, operation panel 14 and compressed air source 19, air bag 2 is equipped with multiple, respectively set in the bottom of bench 1, support rod 4 is connected on air bag 2 upper side, support rod 4 upper end is equipped with support frame 5, drive axle 3 is arranged on support frame 5, electric control system includes ECU, power supply 9, air pressure switch 10, drive axle combination valve 11 and front axle combination valve 13, power supply 9, air pressure switch 10, drive axle combination valve 11, front axle combination valve 13 are all connected to ECU, air pressure switch 10 is connected with power supply 9, compressed air source 19 and air bag 2 are connected with drive axle combination valve 11 and front axle combination valve 13, operation panel 14 is connected with electric control system, height sensor 12 is equipped on the bench 1 of air bag 2 side, height sensor is connected with air bag 2 upper end through swing lever, height sensor 12 is connected with ECU, universal wheel 8 is equipped below bench 1.
[0018] Specifically, the electric control system further comprises other required components on the real vehicle, the circuit connection of the electric control system is same as that of the real vehicle, only the more important part is displayed, the drive axle 3 structure is irrelevant to the technical scheme of the electric control system, and no display details are shown.
[0019] In further embodiments, with reference to Figure 2 , the crossbar 6 is arranged on the rack 1 between the air bag 2 and the support frame 5, the support rod 4 passes through the crossbar 6, the support rod 4 at the lower end of the crossbar 6 is sleeved with the lubricating sleeve 7, the lubricating sleeve 7 is connected with the crossbar 6, the lubricating oil is applied on the lubricating sleeve 7, the support rod 4 can be lubricated, and the friction loss of the power of the air bag 2 is avoided.
[0020] In further embodiments, with reference to Figure 4 , the operation panel 14 is provided with a fault setting area 15 and a detection area 16, a plurality of jacks 17 are arranged on the fault setting area 15, the jacks 17 are respectively connected in series on the connecting circuit between the power supply 9, the air pressure switch 10, the height sensor 12, the drive shaft combination valve 11, the front shaft combination valve 13 and the ECU, and the jacks 17 are provided with pull-out plugs, a plurality of detection holes parallel to the jacks 17 are arranged on the detection area 16, and the operation panel 14 is provided with a working condition indicator 18, and the working condition indicator 18 is connected with the ECU.
[0021] The utility model can be used in cooperation with the whole vehicle test system, be used for whole vehicle teaching, after setting fault, examine and test the fault position of the whole vehicle, and also can be used alone, be used for teaching and examine and test where the fault of air suspension occurs.
[0022] The utility model also can show the working principle of air suspension: the height sensor 12 is connected with the upper end cover of the air bag 2 through the swing rod, when the height of the rack 1 bottom frame and the upper end cover of the air bag 2 changes, the inductive current is generated in the height sensor 12, the electric signal is transmitted to the ECU, the ECU compares the height change with the set height stored in it, gives the signal control drive shaft combination valve 11 or front axle combination valve 13 to inflate or exhaust the air bag 2, thereby realizing the constant control of vehicle height.
[0023] The use method of the utility model is:
[0024] When cooperating with the whole vehicle test system,
[0025] 1. the whole vehicle test system starts, the vehicle instrument EAS (air suspension system) bright red light, air suspension cannot normally rise or fall;
[0026] 2. check the situation on the rack, the vehicle storage battery is electrified, the instrument can normally light up and enter the main interface;
[0027] 3. the instrument interface has no low pressure alarm display, two air pressure gauges show normally, but bright EAS red light.
[0028] 4. Check the current fault code of the ECAS control unit, if the ECU has no response, it is judged that the air suspension ECU is faulty.
[0029] When used alone:
[0030] 1. Turn on the bench 1, confirm that the bench 1 system is normal, and the working condition indicator light 18 has no fault;
[0031] 2. Use a multimeter to confirm that the detection area 16 and the fault setting area 15 of the lower operation panel 14 are connected, and there is 24V voltage;
[0032] 3. Turn off the bench 1;
[0033] 4. Remove the plug in one of the plug holes 17 in the fault setting area 15, and insert a non-conductive insulating plug;
[0034] 5. Use a multimeter to confirm that the detection area 16 is not connected to the removed plug hole in the fault setting area 15.
[0035] 6. After confirmation, turn on the bench 1 and start teaching or examination;
[0036] 7. After the bench 1 is turned on, different fault effects are obtained according to the different removal of the plug in the fault setting area 15, for example, the air bag 2 cannot be inflated or exhausted, and the fault may be that the drive shaft combination valve 11, the front shaft combination valve 13 or the ECU is powered off, the air bag 2 can be inflated or exhausted, but it is unstable, and it may be that the height sensor 12 is powered off;
[0037] 8. According to the preliminary judgment of the fault result, use a multimeter to measure on the detection hole of the corresponding detection area 16, and finally confirm the position of the fault plug hole 17.
[0038] The utility model can clearly show the working process of the air suspension, and is convenient for fault setting, has high flexibility, can realize transfer of different rooms, and is favorable for teaching and examination.
[0039] It should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model and are not limited. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the utility model can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the utility model, and all should be covered in the scope of the claims of the utility model.
Claims
1. A teaching test bench for air suspension in passenger vehicles, characterized in that, The device includes a test bench (1), an airbag (2), a drive axle (3), an electronic control system, an operation panel (14), and a compressed air source (19). Multiple airbags (2) are provided and are respectively located at the bottom of the test bench (1). A support rod (4) is connected above the airbag (2). A support frame (5) is provided at the upper end of the support rod (4). The drive axle (3) is located on the support frame (5). The electronic control system includes an ECU, a power supply (9), a pressure switch (10), a drive shaft combination valve (11), and a front axle combination valve (13). The power supply (9), the pressure switch (10), the drive shaft combination valve (11), and the front axle combination valve (13) are all connected to the ECU. The pressure switch (10) is connected to the power supply (9). The compressed air source (19) and the airbag (2) are both connected to the drive shaft combination valve (11) and the front axle combination valve (13). The operation panel (14) is connected to the electronic control system.
2. The bus air suspension teaching test bench according to claim 1, characterized in that, A crossbar (6) is provided on the platform (1) between the airbag (2) and the support frame (5). The support rod (4) passes through the crossbar (6), and a lubricating sleeve (7) is sleeved on the support rod (4) at the lower end of the crossbar (6). The lubricating sleeve (7) is connected to the crossbar (6).
3. The bus air suspension teaching test bench according to claim 1, characterized in that, A height sensor (12) is provided on a stand (1) on one side of the airbag (2). The height sensor is connected to the upper end of the airbag (2) via a swing arm. The height sensor (12) is connected to the ECU.
4. The bus air suspension teaching test bench according to claim 3, characterized in that, The operation panel (14) is provided with a fault detection area (15) and a detection area (16). The fault detection area (15) is provided with multiple sockets (17). The sockets (17) are connected in series to the connection circuit between the power supply (9), the air pressure switch (10), the height sensor (12), the drive shaft combination valve (11), the front axle combination valve (13) and the ECU. The sockets (17) are provided with removable inserts. The detection area (16) is provided with multiple detection holes connected in parallel with the sockets (17).
5. The bus air suspension teaching test bench according to claim 4, characterized in that, The operation panel (14) is equipped with a status indicator light (18).
6. The bus air suspension teaching test bench according to claim 1, characterized in that, The platform (1) is equipped with casters (8) underneath.