Brake assembly testing device

Abstract

The utility model provides a brake assembly testing device. The brake assembly testing device comprises a rack; the brake executing mechanism is arranged on the rack and connected with the brake assembly, and the brake assembly is provided with a pushing end used for controlling the brake executing mechanism; the driving mechanism is arranged on the rack, the driving mechanism is provided with a profiling part suitable for being connected with the pushing end, and the profiling part can move in the first direction to push the pushing end; and the pressure detector is connected with the driving mechanism and is used for detecting the pressure applied to the pushing end by the profiling part. According to the brake assembly testing device, the profiling piece is reliably connected with the pushing end of the brake assembly, the pressure on the pushing end is detected through the pressure detector in the driving process, and the contact point of the profiling piece and the brake assembly is determined according to the pressure, so that high-precision controllable driving is performed on the pushing end on the basis of the contact point; various parameters of the brake system can be quickly and accurately measured, and the testing accuracy and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of testing, and more specifically, to a brake assembly testing device. Background Art

[0002] In the related technology, the brake assembly is crucial to automobile safety, and its testing device is indispensable in automobile manufacturing. In the prior art, the test device of the brake assembly usually uses hydraulic pressure as the power source, with low working accuracy and single function. Different test items need to be performed on different devices, and the test efficiency is low. In addition, the pedal is usually used to rotate and connect with the brake assembly during the test, and the point of force is easily offset during repeated tests, affecting the accuracy of the test. Utility Model Content

[0003] The utility model provides a new technical solution for a brake assembly test device, which can at least solve one of the problems of low accuracy and low efficiency of the brake assembly test device in the prior art.

[0004] The utility model provides a brake assembly testing device, comprising: a frame; a brake actuator, the brake actuator is arranged on the frame and connected to the brake assembly, the brake assembly has a pushing end for controlling the brake actuator; a driving mechanism, the driving mechanism is arranged on the frame, the driving mechanism has a profiling piece suitable for connecting the pushing end, the profiling piece is movable along a first direction to push the pushing end; a pressure detector, the pressure detector is connected to the driving mechanism and is used to detect the pressure applied by the profiling piece to the pushing end.

[0005] Optionally, the profiled piece is used to be sleeved with the pushing end.

[0006] Optionally, the driving mechanism comprises: an electric slide bar assembly, the electric slide bar assembly is arranged on the frame, the electric slide bar assembly has a telescopic end movable along the first direction, and the imitation piece is arranged on the telescopic end.

[0007] Optionally, the brake assembly testing device also includes: an oil supply mechanism and an oil return mechanism, the oil supply mechanism and the oil return mechanism are arranged on the frame, the oil supply mechanism, the brake assembly, the brake actuator and the oil return mechanism are connected to form a hydraulic circuit, the oil supply mechanism is used to deliver hydraulic oil to the brake assembly, and the oil return mechanism is used to deliver hydraulic oil to the oil supply mechanism.

[0008] Optionally, the oil return mechanism includes: an oil return tank, which is arranged on the frame and connected to the brake actuator; an oil return valve, which is arranged between the oil return tank and the brake actuator; and an oil return drive assembly, which is connected between the oil return tank and the oil supply mechanism and is used to transport the hydraulic oil in the oil return tank to the oil supply mechanism.

[0009] Optionally, the oil supply mechanism includes: an oil supply tank, which is connected to the oil return drive assembly; and a hydraulic valve assembly, which is connected between the oil supply tank and the brake assembly.

[0010] Optionally, the oil supply tank is located on the top side of the brake assembly, and the oil return tank is located on the bottom side of the brake assembly.

[0011] Optionally, the brake assembly testing device also includes: an industrial control system module, which is arranged on the frame and connected to the brake assembly for controlling the working condition of the brake assembly; and a control module, which is connected to the industrial control system module, the driving mechanism and the pressure detector.

[0012] Optionally, the brake assembly testing device further includes: a calibrator, which is connected to the control module and is used to calibrate the driving mechanism.

[0013] Optionally, the brake assembly testing device further comprises: a displacement detector, which is connected to the control module and is used to detect the position of the profiling member.

[0014] According to the brake assembly testing device of the utility model, the performance test of the brake assembly that controls the brake actuator can be carried out, the imitation piece in the driving mechanism can be reliably connected with the pushing end of the brake assembly, and the pressure on the pushing end is detected by a pressure detector arranged on the driving mechanism during the driving process, and the contact point between the imitation piece and the brake assembly is determined based on the pressure, so that the pushing end can be driven in a controllable manner with high precision based on the contact point, and various parameters of the brake system can be measured quickly and accurately, thereby improving the accuracy and efficiency of the test.

[0015] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0017] Figure 1It is a stereoscopic diagram of a brake assembly testing device according to an embodiment of the utility model;

[0018] Figure 2 It is a front view of a brake assembly testing device according to an embodiment of the utility model;

[0019] Figure 3 It is a side view of a brake assembly testing device according to an embodiment of the utility model;

[0020] Figure 4 It is an enlarged view of a part of the structure of a brake assembly testing device according to an embodiment of the utility model;

[0021] Figure 5 It is a schematic diagram of the architecture of a control system of a brake assembly testing device according to an embodiment of the present utility model;

[0022] Figure 6 It is a schematic diagram of a working condition test flow of a brake assembly test device according to an embodiment of the utility model;

[0023] Figure 7 It is a schematic diagram of a calibration process of a brake assembly test device according to an embodiment of the utility model;

[0024] Figure 8 The present invention is a schematic diagram of a durability test process of a brake assembly test device according to an embodiment of the present invention.

[0025] Reference numerals

[0026] Frame 101; oil supply tank 102; upper reversing valve group 103; second pressure sensor 104; lower reversing valve group 105; outlet valve group 107; brake actuator 108; oil return tank 109; oil return drive assembly 110;

[0027] Control module 201; protocol conversion communication module 202; industrial control system module 203;

[0028] A first connecting pipe group 301; a second connecting pipe group 302; a third connecting pipe group 303;

[0029] Brake assembly 401; profiled part 402; pressure detector 403; displacement detector 404; calibrator 405; electric slide rod assembly 406. DETAILED DESCRIPTION

[0030] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0031] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0032] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0033] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0034] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0035] The brake assembly 401 testing device according to the embodiment of the utility model is described in detail below with reference to the accompanying drawings.

[0036] like Figures 1 to 8 As shown, the brake assembly 401 testing device according to the embodiment of the utility model includes: a frame 101, a brake actuator 108, a driving mechanism and a pressure detector 403.

[0037] Specifically, the brake actuator 108 is disposed on the frame 101 and connected to the brake assembly 401, and the brake assembly 401 has a push end for controlling the brake actuator 108. The driving mechanism is disposed on the frame 101, and the driving mechanism has a profiling member 402 suitable for connecting to the push end, and the profiling member 402 is movable along a first direction to push the push end. The pressure detector 403 is connected to the driving mechanism and is used to detect the pressure applied by the profiling member 402 to the push end.

[0038] In other words, the brake assembly 401 testing device according to the embodiment of the utility model is mainly composed of a frame 101, a brake actuator 108, a drive mechanism and a pressure detector 403. The brake assembly 401 testing device can be used to test the brake assembly 401, and the brake assembly 401 can include but is not limited to a BSC assembly (FinDreams Powertrain Braking Safety Control System).

[0039] The brake actuator 108 and the driving mechanism may be arranged on the frame 101, and the brake actuator 108 may be connected to the brake assembly 401 and perform a braking operation under the control of the brake assembly 401. The brake actuator 108 may include a caliper wheel cylinder mechanism.

[0040] The brake assembly 401 may have a pushing end, which may be a piston structure. The brake assembly 401 may build up pressure according to the pressure applied to the pushing end, thereby controlling the action of the brake actuator 108 .

[0041] The output end of the driving mechanism may be provided with a profiling member 402, and the profiling member 402 may be adapted to the pushing end, so that the profiling member 402 can be reliably connected to the pushing end during the process of the driving mechanism driving the profiling member 402 to move. It should be noted that the connection between the profiling member 402 and the pushing end may include abutment, sleeve connection, etc., which are not limited here. For example, the pushing end may be a ball head structure, and the profiling member 402 may be a groove structure suitable for accommodating the ball head, or the pushing end may be a groove structure, and the shape of the profiling member 402 may be the same as the shape of the groove structure.

[0042] In addition, the driving mechanism may be provided with a pressure detector 403, which may be connected to the profiling member 402 to detect the pressure exerted on the profiling member 402. According to the principle of force interaction, the pressure exerted by the driving mechanism on the pushing end may be obtained. Optionally, the pressure detector 403 may be a first pressure sensor.

[0043] During the test, the brake assembly 401 can be fixed on the frame 101, and the pushing end of the brake assembly 401 can be arranged relative to the imitation member 402 in the first direction. At this time, the pushing end can move along the first direction, and the imitation member 402 can move along the first direction under the drive of the driving mechanism.

[0044] Before the test starts, the profiling member 402 and the pushing end can be spaced apart along the first direction. After the test starts, the profiling member 402 first approaches the pushing end along the first direction, and pushes the pushing end to move along the first direction after being in contact and connected with the pushing end. During this process, since the gap between the profiling member 402 and the pushing end is difficult to control and confirm, the pressure detector 403 can detect the pressure exerted on the pushing end, thereby converting the position of the profiling member 402 according to the detected pressure value, and determining the contact point between the profiling member 402 and the pushing end of the brake assembly 401.

[0045] For example, when the pressure on the pushing end is 2N, the position of the profiled member 402 is defined as the contact point between the profiled member 402 and the pushing end. In subsequent testing processes, the distance that the profiled member 402 moves can be controlled based on the contact point to drive the pushing end, thereby controlling the brake assembly 401 to control the brake actuator 108.

[0046] Therefore, according to the brake assembly 401 testing device of the embodiment of the utility model, the performance test of the brake assembly 401 that controls the brake actuator 108 can be performed, and the imitation piece 402 in the driving mechanism can be reliably connected to the pushing end of the brake assembly 401, and during the driving process, the pressure on the pushing end is detected by the pressure detector 403 arranged on the driving mechanism, and the contact point between the imitation piece 402 and the brake assembly 401 is determined according to the pressure, so that the pushing end can be driven in a controllable manner with high precision based on the contact point, and various parameters of the brake system can be measured quickly and accurately, thereby improving the accuracy and efficiency of the test.

[0047] According to an embodiment of the present invention, the profiling member 402 is used to be sleeved with the pushing end, which is beneficial to improving the reliability of the connection between the profiling member 402 and the pushing end, while accurately controlling the pressure of the profiling member 402 on the pushing end, thereby helping to improve the accuracy of the test.

[0048] Optionally, a receiving groove may be provided at one end of the profiling member 402 facing the pushing end, and the pushing end may be a ball head structure, and the shape of the receiving groove may be the same as the shape of the ball head structure. During the sleeve connection process, the pushing end may extend into the receiving groove of the profiling member 402. Since the sleeve connection process is invisible, it is difficult to confirm the gap between the profiling member 402 and the pushing end. The pressure value applied by the profiling member 402 to the pushing end may be detected by the pressure detector 403 to determine the contact point between the profiling member 402 and the pushing end.

[0049] According to some other embodiments of the present invention, the driving mechanism includes an electric slide bar assembly 406, which is disposed on the frame 101. The electric slide bar assembly 406 has a telescopic end movable along a first direction, and the imitation member 402 is disposed at the telescopic end.

[0050] Specifically, the electric slide rod assembly 406 can be composed of a slide rod and a motor, that is, the brake assembly 401 test device can use a motor as a power source. Compared with traditional hydraulic or pneumatic pressure as a power source, the driving mechanism of this embodiment has the advantages of high control accuracy and fast response speed, which is conducive to quickly and accurately measuring various parameters of the brake system and improving test efficiency.

[0051] Optionally, the motor in the electric slide assembly 406 may be a servo motor.

[0052] In some specific embodiments of the present invention, the brake assembly 401 testing device also includes an oil supply mechanism and an oil return mechanism, which are arranged on the frame 101. The oil supply mechanism, the brake assembly 401, the brake actuator 108 and the oil return mechanism are connected to form a hydraulic circuit. The oil supply mechanism is used to deliver hydraulic oil to the brake assembly 401, and the oil return mechanism is used to deliver hydraulic oil to the oil supply mechanism.

[0053] Specifically, the brake assembly 401 can control the braking action of the brake actuator 108 through hydraulic oil. The oil supply mechanism, the brake assembly 401, the brake actuator 108 and the oil return mechanism can be connected through pipelines to form a hydraulic circuit.

[0054] The oil supply mechanism stores hydraulic oil, and provides hydraulic oil for building pressure to the brake assembly 401. Then, under the control of the brake assembly 401, the hydraulic oil flows into the brake actuator 108 to control the movement of the caliper wheel cylinder mechanism. Finally, the oil return mechanism recovers the hydraulic oil flowing out of the brake actuator 108 and transports it back to the oil supply mechanism, thereby realizing automatic recycling of the hydraulic oil. Compared with the manual recovery method used in traditional technology, the brake assembly 401 testing device of this embodiment saves labor costs and time costs, which is conducive to improving testing efficiency.

[0055] According to some other embodiments of the utility model, the oil return mechanism includes an oil return tank 109, an oil return valve and an oil return drive assembly 110. The oil return tank 109 is disposed on the frame 101 and connected to the brake actuator 108. The oil return valve is disposed between the oil return tank 109 and the brake actuator 108. The oil return drive assembly 110 is connected between the oil return tank 109 and the oil supply mechanism, and is used to deliver the hydraulic oil in the oil return tank 109 to the oil supply mechanism.

[0056] In other words, the oil return mechanism can be mainly composed of an oil return tank 109, an oil return valve and an oil return drive assembly 110. The oil return valve, the oil return tank 109 and the oil return drive assembly 110 are sequentially connected between the brake actuator 108 and the oil supply tank 102, wherein the on and off of the oil return valve is used to control whether the hydraulic oil in the brake actuator 108 flows into the oil return tank 109, the oil return tank 109 is used to recover the hydraulic oil, and the oil return drive assembly 110 can provide power for the hydraulic oil to enter the oil supply tank 102 from the oil return tank 109.

[0057] Optionally, the oil return drive assembly 110 may include an oil pump.

[0058] In some specific embodiments, the oil supply tank 102 is connected to the hydraulic valve assembly via a first connecting pipe set 301, the hydraulic valve assembly is connected to the brake assembly 401 via a second connecting pipe set 302, and the return oil drive assembly 110 is connected to the oil supply tank 102 via a third connecting pipe set 303. The connecting pipe set between the brake assembly 401 and the brake actuator 108, and the connecting pipe set between the brake actuator 108 and the return oil tank 109 are not shown in the figure.

[0059] In some specific embodiments of the present invention, the oil supply mechanism includes an oil supply tank 102 and a hydraulic valve assembly. The oil supply tank 102 is connected to the oil return drive assembly 110. The hydraulic valve assembly is connected between the oil supply tank 102 and the brake assembly 401.

[0060] In this embodiment, the hydraulic valve assembly can control the hydraulic oil flowing into the brake assembly 401. For example, the hydraulic valve assembly may include an upper reversing valve group 103, a lower reversing valve group 105 and an outlet valve group 107. The upper reversing valve group 103 and the lower reversing valve group 105 can control the flow direction of the hydraulic oil, and the opening and closing of the outlet valve group 107 can control whether the hydraulic oil flows into the brake assembly 401.

[0061] According to some optional embodiments, a second pressure sensor 104 may be provided in the hydraulic valve assembly for detecting the pressure of the hydraulic oil.

[0062] In some specific embodiments, the frame 101 may include three layers: upper, middle, and lower. The lower layer of the frame 101 may be provided with a brake actuator 108, an oil return tank 109, and an oil return drive assembly 110. The middle layer of the frame 101 may be provided with a hydraulic valve assembly and a drive mechanism. The upper layer of the frame 101 may be provided with an oil supply tank 102. The brake assembly 401 may be installed in the middle layer of the frame 101.

[0063] According to some optional embodiments of the present invention, the brake assembly 401 test device further includes an industrial control system module 203 and a control module 201. The industrial control system module 203 is disposed on the frame 101, and the industrial control system module 203 is connected to the brake assembly 401 to control the working condition of the brake assembly 401. The control module 201 is connected to the industrial control system module 203, the drive mechanism and the pressure detector 403.

[0064] Specifically, the control module 201 can be connected to the industrial control system module 203 to issue instructions to the industrial control system module 203 or receive feedback data and feedback status from the industrial control system module 203. The control module 201 can also receive pressure data fed back by the pressure detector 403 and control the drive mechanism.

[0065] Optionally, the control module 201 may be a host computer.

[0066] The industrial control system module 203 can be connected to the brake assembly 401, such as the BSC brake assembly, through a signal trigger output module.

[0067] like Figure 5As shown, the user can send instructions to the industrial control system module 203 through the host computer. The industrial control system checks the configuration parameter feedback data status, checks the required functional mode according to the system parameter configuration, including the three modes of working condition test mode, calibration mode, and endurance mode. After the mode is selected, the content of the generated configuration output file is sent to the signal trigger output module to enter the working mode. The signal trigger output module sends it to the BSC brake assembly system through the CAN signal output port, and sends it to the digital acquisition system analog channel acquisition through the analog signal output port. At the same time, the driving mechanism executes the corresponding mode action, interacts with the BSC brake assembly information, and outputs the message. In addition, according to the information signal at the input end, the actuator action is adjusted in real time. The displacement and pressure electrical signals at the input end can come from the displacement detector 404 and the pressure detector 403.

[0068] In the operating condition test mode, the operating conditions of the brake assembly 401 may include but are not limited to: BSC exhaust, mechanical exhaust, simulator exhaust, vacuum sealing, initial signal, master cylinder pressure building sealing, idle stroke, pressure relief valve pressure relief efficiency, input and output characteristics, simulator sealing, dynamic sealing of pressure increasing and reducing valves, consistency of pressure maintaining valves, sinusoidality, and FDV valve body sealing.

[0069] After passing various working condition tests in the working condition test mode, the life of the brake assembly 401 can be tested using the durability test mode. For example, the durability test parameters are configured in the control module 201, the electric slide rod assembly 406 is started, and the pressure value feedback from the protocol communication module 202 and the pressure detector 403 is used to push the pushing end of the brake assembly 401 to reciprocate. The durability test process is fully automatic and does not require human intervention. A durability test report is generated for easy tracking.

[0070] In this embodiment, the control module 201 is configured to cooperate with the industrial control system module 203 to control the test conditions of the brake system and integrate the durability test and the calibration test. The work that traditional technologies require manual labor or multiple devices to complete can be completed on a brake assembly 401 test device in this embodiment, achieving multi-purpose use of a single machine, simplifying the test process, and saving labor and time costs.

[0071] In addition, by editing and modifying the parameter configuration of the control module 201 instructions, new test control can be added to add new test items for the upgrade and function expansion of the brake assembly 401.

[0072] Optionally, the industrial control system module 203 may be arranged at the lower layer of the rack 101, and the control module 201 may be arranged at the middle layer of the rack 101. The control module 201 may include a host computer.

[0073] According to some other embodiments of the present invention, the brake assembly 401 testing device further includes a calibrator 405 , which is connected to the control module 201 and is used to calibrate the driving mechanism.

[0074] Specifically, the control module 201 can be connected to the calibrator 405 through the industrial control system module 203. The control module 201 sends a command for calibration test to the industrial control system module 203, and the industrial control system module 203 configures system parameters according to the command, selects the calibration mode to configure the output file content, and controls the calibrator 405 to calibrate the drive mechanism. The calibrator 405 can be a precision calibrator 405 to improve the accuracy of calibration.

[0075] Optionally, the calibrator 405 may be disposed in the middle layer of the frame 101 and located at the lower side of the profiling block.

[0076] In some specific implementations of the present invention, the brake assembly 401 testing device further includes a displacement detector 404 . The displacement detector 404 is connected to the control module 201 and is used to detect the position of the profiling member 402 .

[0077] Optionally, the displacement detector 404 may be disposed in the middle layer of the frame 101 and located at the lower side of the profiling block. The displacement detector 404 may be a displacement sensor.

[0078] A sensor for detecting pressure may be provided inside the brake assembly 401, which can detect the pressure value output by the brake assembly 401. The calibrator 405 and the pressure sensor can cooperate to calibrate the position of the square block corresponding to the pressure value output by the brake assembly 401, so that the brake assembly 401 reaches the corresponding output pressure through the position of the square block during testing.

[0079] In this embodiment, the calibration process is integrated into the brake assembly 401 test device using the calibrator 405 and the displacement detector 404. Compared with the manual calibration performed before testing in traditional technology, the brake assembly 401 test device of this embodiment can automatically complete the calibration, has the advantages of high efficiency and low error rate, and can automatically generate a calibration report for easy tracking.

[0080] like Figure 6 As shown, the working condition test process of the brake assembly 401 test device is described in detail.

[0081] S1.1, install the BSC brake assembly on the rack 101, start the brake assembly 401 test device, and load the configuration parameters of the test system;

[0082] S1.2, select the working condition test mode in the function mode on the host computer, enter the working condition test interface to perform 14 working condition tests: BSC exhaust, mechanical exhaust, simulator exhaust, vacuum tightness, initial signal, main cylinder pressure build-up tightness, empty stroke, pressure relief valve pressure relief efficiency, input-output characteristics, simulator tightness, dynamic tightness of pressure increasing and reducing valves, consistency of pressure maintaining valves, sinusoidality, and FDV valve body tightness;

[0083] S1.3, after selecting the working condition, select start on the upper computer, the electric slide rod assembly 406 drives the pressure detector 403 and the imitation piece 402 to move along the first direction, and complete the sleeve connection with the BSC brake assembly to determine the contact point;

[0084] S1.4, according to the working condition, the upper computer sends a working condition instruction to the BSC brake assembly through the protocol conversion communication module 202, and waits for the BSC brake assembly to execute the corresponding working condition;

[0085] S1.5, the electric slide rod assembly 406 drives the pressure detector 403 and the imitation piece 402 to move according to different working conditions, and at the same time, the lower reversing valve group 105, the outlet valve group 107 and the brake actuator 108 cooperate to perform the action;

[0086] S1.6, the working condition is executed, the host computer generates a working condition test report, and the working condition test is completed.

[0087] like Figure 7 As shown, the calibration mode process of the brake assembly 401 test device is described in detail.

[0088] S2.1, start the brake assembly 401 test device, select the calibration mode, wait for calibration, initialize the BSC brake assembly data, and switch the BSC brake assembly to D mode;

[0089] S2.2, the calibrator 405 is powered on, and the electric slide rod assembly 406 drives the pressure detector 403 and the imitation piece 402 to move and connect with the BSC brake assembly to determine the contact point;

[0090] S2.3, the host computer writes PWM template parameters to the calibrator 405, reads the first data of the BSC brake assembly channel, and the host computer writes SENT template parameters to the calibrator 405, reads the second data of the BSC brake assembly channel;

[0091] S2.4, wait for the electric slide assembly 406 to drive the pressure detector 403 and the imitation piece 402 to move to the end point. The calibrator 405 reads the end data of the BSC brake assembly channel 1, and the calibrator 405 reads the end data of the BSC brake assembly channel 2;

[0092] S2.5, the calibrator 405 performs offset calculation and sends it to the BSC brake assembly for offset calibration. The electric slide rod assembly 406 drives the pressure detector 403 and the imitation piece 402 back to the contact point;

[0093] S2.6, the calibrator 405 reads the one-point data of the BSC brake assembly channel, reads the two-point data of the BSC brake assembly channel, the calibrator 405 makes a point judgment, the electric slide bar assembly 406 drives the pressure detector 403 and the imitation part 402 to move forward point by point, the point calculation is completed, and the correction data of the one-point data of the BSC brake assembly channel is written, and the correction data of the two-point data of the BSC brake assembly channel is written;

[0094] S2.7, the electric slide assembly 406 drives the pressure detector 403 and the imitation part 402 to return, verifies the movement of the electric slide assembly 406, waits for the calibration of the calibrator 405 to be completed, and the upper computer waits for the calibration return to be completed. After receiving the calibration return, the calibration is completed.

[0095] like Figure 8 As shown, the calibration durability test process of the brake assembly 401 test device is described in detail.

[0096] S3.1, start the brake assembly 401 test device, select the endurance test mode, and return the electric slide rod assembly 406 to zero;

[0097] S3.2, the electric slide rod assembly 406 drives the pressure detector 403 and the imitation piece 402 to move and connect with the BSC brake assembly to determine the contact point;

[0098] S3.3, the host computer loads the durability test parameters, and the electric slide bar assembly 406 starts to perform reciprocating point motion until the set number of times is reached, and a durability test report is generated, and the durability test is completed.

[0099] In summary, the brake assembly 401 testing device of the embodiment of the utility model can perform performance tests on the brake assembly 401 that controls the brake actuator 108. The profiled piece 402 in the driving mechanism can be reliably connected to the pushing end of the brake assembly 401, and the pressure detector 403 arranged on the driving mechanism can detect the pressure on the pushing end during the driving process. The contact point between the profiled piece 402 and the brake assembly 401 is determined based on the pressure, so that the pushing end can be driven in a controllable manner with high precision based on the contact point, and various parameters of the brake system can be measured quickly and accurately, thereby improving the accuracy and efficiency of the test.

[0100] In actual use, the data processor and control module 201 are not limited to a certain brand and model. The utility model does not need to explain this. It should be noted that the computer program loaded by the data processor and control module 201 is not within the protection scope of the utility model. The utility model does not protect computer programs. When using the utility model, all computer programs need to be loaded additionally by technicians in this field. According to the utility model, some steps can be performed sequentially or simultaneously.

[0101] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A brake assembly testing device, characterized in that: include: frame; A brake actuator, the brake actuator is arranged on the frame and connected to the brake assembly, and the brake assembly has a push end for controlling the brake actuator; A driving mechanism, the driving mechanism is arranged on the frame, the driving mechanism has a profiling member suitable for connecting the pushing end, and the profiling member is movable along a first direction to push the pushing end; A pressure detector is connected to the driving mechanism and is used to detect the pressure applied by the profiling member to the pushing end.

2. The brake assembly testing device according to claim 1, characterized in that: The profiling piece is used for sleeve connection with the pushing end.

3. The brake assembly testing device according to claim 1, characterized in that: The driving mechanism comprises: An electric slide bar assembly is arranged on the frame, the electric slide bar assembly has a telescopic end movable along the first direction, and the imitation piece is arranged on the telescopic end.

4. The brake assembly testing device according to claim 1, characterized in that: Also includes: An oil supply mechanism and an oil return mechanism, wherein the oil supply mechanism and the oil return mechanism are arranged on the frame, the oil supply mechanism, the brake assembly, the brake actuator and the oil return mechanism are connected to form a hydraulic circuit, the oil supply mechanism is used to deliver hydraulic oil to the brake assembly, and the oil return mechanism is used to deliver hydraulic oil to the oil supply mechanism.

5. The brake assembly testing device according to claim 4, characterized in that: The oil return mechanism comprises: An oil return tank, the oil return tank being arranged on the frame and connected to the brake actuator; An oil return valve, the oil return valve being arranged between the oil return tank and the brake actuator; An oil return drive assembly is connected between the oil return tank and the oil supply mechanism, and is used for delivering the hydraulic oil in the oil return tank to the oil supply mechanism.

6. The brake assembly testing device according to claim 5, characterized in that: The oil supply mechanism comprises: An oil supply tank, the oil supply tank being connected to the oil return drive assembly; A hydraulic valve assembly is connected between the oil supply tank and the brake assembly.

7. The brake assembly testing device according to claim 6, characterized in that: The oil supply tank is located on the top side of the brake assembly, and the oil return tank is located on the bottom side of the brake assembly.

8. The brake assembly testing device according to any one of claims 1 to 7, characterized in that: Also includes: An industrial control system module, the industrial control system module is arranged on the rack, the industrial control system module is connected to the brake assembly, and is used to control the working condition of the brake assembly; A control module is connected to the industrial control system module, the driving mechanism and the pressure detector.

9. The brake assembly testing device according to claim 8, characterized in that: Also includes: A calibrator is connected to the control module and is used to calibrate the driving mechanism.

10. The brake assembly testing device according to claim 9, characterized in that: Also includes: A displacement detector is connected to the control module and is used to detect the position of the profiling member.

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