Vehicle brake element testing device

Abstract

The invention discloses a vehicle brake element testing device. The device comprises a driving assembly and a testing assembly. The driving assembly and the testing assembly are separately arranged; the driving assembly comprises a noise reduction box, a power element and a transmission element; a silencing part is arranged on the inner surface of the noise reduction box; the power element is arranged in the noise reduction box, and the power element is detachably connected with the noise reduction box; the transmission element is arranged between the power element and the test assembly; the side, close to the power element, of the transmission element is detachably connected with the power element. The side, close to the testing assembly, of the transmission element penetrates through the side face of the noise reduction box and is detachably connected with the testing assembly. The side, away from the transmission element, of the power element is electrically connected with the controller. The controller is arranged on the side, away from the testing assembly, of the driving assembly. The stability of the vehicle brake element testing device and the reliability of the testing result are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle brake noise testing, and particularly to a testing device for vehicle brake components. Background Art

[0002] With the development of the automotive industry, especially the new energy electric vehicle industry, the electrification and intelligent level of chassis components are getting higher and higher. The application of intelligent braking systems is also becoming more and more widespread, and the working noise problem of intelligent braking systems has increasingly attracted the attention of consumers and automobile manufacturers. Therefore, a variety of testing methods for the noise of intelligent braking systems have emerged in the industry. These testing methods are divided into two categories. One is to test the noise of the brake at different pressure building speeds, and the other is to test the noise when the brake push rod moves at different forward speeds.

[0003] Currently, the test benches for intelligent brake noise testing in the industry are mainly driven by manpower, that is, a brake and a brake pedal are assembled on the test bench, and the brake is driven to build pressure by stepping on it during the test. This kind of test bench relies on the foot strength of the tester to control the push rod speed / pressure building speed. First, it cannot ensure that the push rod speed / pressure building speed reaches the requirements of the test conditions each time, and secondly, it cannot ensure the consistency of multiple measurement conditions.

[0004] For the remaining performance test benches of intelligent braking systems, although they are equipped with servo motors to drive the brakes, these test benches are used in cooperation with a temperature chamber, that is, the whole bench is installed in the temperature chamber to form a whole. This kind of bench first has no stable mechanism and sound insulation structure, and its own working noise is relatively large, which cannot meet the conditions for product noise testing. In addition, due to the existence of the temperature chamber, this kind of performance test bench cannot be used in an anechoic chamber. Summary of the Invention

[0005] In order to solve the technical problems in the background art, the present invention provides a testing device for vehicle brake components, which reduces the noise introduced during the driving of power components and improves the stability of the testing device for vehicle brake components and the reliability of test results.

[0006] On the one hand, the present invention provides a testing device for vehicle brake components, characterized in that the device includes a driving component and a testing component; the driving component and the testing component are separately arranged;

[0007] The driving component includes a noise reduction box, a power element and a transmission element; a sound absorption part is arranged on the inner surface of the noise reduction box; the power element is arranged inside the noise reduction box, and the power element is detachably connected to the noise reduction box; the transmission element is arranged between the power element and the test component; one side of the transmission element close to the power element is detachably connected to the power element; one side of the transmission element close to the test component penetrates through the side surface of the noise reduction box and is detachably connected to the test component; the side of the power element away from the transmission element is electrically connected to a controller; the controller is arranged on the side of the driving component away from the test component; the controller is used for sending a driving signal to the power element to enable the power element to simulate the test working condition of the brake pedal; the power element receives the driving signal to drive the transmission element and drives the test component to perform the braking operation corresponding to the brake pedal.

[0008] Further, a fixing component is arranged inside the noise reduction box; the fixing component is detachably connected to the noise reduction box; the power element is arranged on the side of the fixing component away from the noise reduction box; the power element is detachably connected to the fixing component.

[0009] Further, the test component includes a braking element; the braking element is arranged on the side of the transmission element away from the power element; the braking element is pushed by the transmission element and performs the braking operation corresponding to the brake pedal;

[0010] The test component further includes a test base plate and a test support; the test support is detachably connected to the test base plate; the braking element is arranged on the side of the test support away from the test base plate; the braking element is detachably connected to the test support.

[0011] Further, the driving component further includes a plurality of vibration damping members; the vibration damping members are symmetrically distributed along the central axis of the transmission element; a first through hole is arranged on the fixing component; a second through hole is arranged on the side surface of the noise reduction box; the vibration damping members are detachably connected to the noise reduction box through the second through holes; one side of the vibration damping members close to the fixing component penetrates through the first through hole; one side of the vibration damping members away from the fixing component is detachably connected to the test support.

[0012] Further, the device further includes a control component; the control component is separately arranged from the driving component; the control component includes an industrial personal computer and the controller; the industrial personal computer is electrically connected to the controller; the industrial personal computer is used for sending a control instruction to the controller to enable the controller to execute the control instruction.

[0013] Further, the device further includes a load component; the load component includes a load box body; a sound-absorbing part is arranged on the inner surface of the load box body; a plurality of load devices are arranged inside the load box body.

[0014] Further, the load device includes a load part and a hydraulic sensor; the hydraulic sensor is detachably connected to the load part; the load part is used to simulate the amount of brake fluid required during vehicle braking; the hydraulic sensor is used to detect the pressure value inside the load part and feedback it to the industrial control computer.

[0015] Further, the test component further includes a state parameter sensor; the state parameter sensor is arranged between the transmission element and the braking element; the state parameter sensor is detachably connected to the transmission element; the state parameter sensor is detachably connected to the braking element; the state parameter sensor is used to collect the state parameters of the braking element and feedback them to the industrial control computer.

[0016] Further, a flange is arranged at one end of the braking element close to the state parameter sensor; the flange is sleeved on the surface of the braking element.

[0017] Further, the device further includes a power supply component; the power supply component includes a first power supply device and a second power supply device; the first power supply device and the second power supply device are arranged separately; the first power supply device is electrically connected to the braking element; the first power supply device is used to supply power to the braking element; the second power supply device is electrically connected to the power element; the second power supply device is used to supply power to the power element.

[0018] The beneficial effects of the present invention are:

[0019] The vehicle braking element testing device of the present invention includes a driving component and a testing component; the driving component and the testing component are separately arranged; the driving component includes a noise reduction box, a power element and a transmission element; a sound-absorbing part is arranged on the inner surface of the noise reduction box; the power element is arranged inside the noise reduction box, and the power element is detachably connected to the noise reduction box; the transmission element is arranged between the power element and the testing component; one side of the transmission element close to the power element is detachably connected to the power element; one side of the transmission element close to the testing component penetrates through the side surface of the noise reduction box and is detachably connected to the testing component; the side of the power element far from the transmission element is electrically connected to a controller; the controller is arranged on the side of the driving component far from the testing component; the controller is used to send a driving signal to the power element to make the power element simulate the testing working condition of the brake pedal; the power element receives the driving signal to drive the transmission element and drives the testing component to perform the braking operation corresponding to the brake pedal. In the present invention, the power element is used as the driving device of the vehicle braking element testing device, so that the testing working condition is controllable, improving the testing efficiency and the accuracy of the testing result; at the same time, by arranging the noise reduction box and arranging the sound-absorbing part on the inner surface of the noise reduction box, the error or noise caused by the vibration of the power element is reduced, effectively isolating the influence of the vibration and noise generated during the operation of the power element on the testing of the testing component, ensuring the accuracy of the testing; through the controller to control the driving of the power element, the power element drives the transmission element, and the transmission element drives the testing component, finally realizing the braking test, and the controller, the driving component and the testing component are all separately arranged, reducing the vibration introduced during the driving of the power element, improving the stability of the vehicle braking element testing device and the reliability of the testing result. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the present invention, the drawings required for use in the embodiments of the present invention or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 is a schematic structural diagram of a vehicle braking element testing device provided by the present invention;

[0022] Figure 2 is a schematic connection diagram of a driving component and a testing component provided by the present invention;

[0023] Figure 3 is a schematic diagram of a driving component of a vehicle braking element testing device provided by the present invention;

[0024] Figure 4 It is a schematic diagram of a test component of a vehicle braking element test device provided by the present invention;

[0025] Figure 5 It is a schematic diagram of a load component of a vehicle braking element test device provided by the present invention;

[0026] Figure 6 It is a schematic diagram of a control component of a vehicle braking element test device provided by the present invention;

[0027] Among them, the reference numerals in the figure correspond to: 1 - driving component, 2 - test component, 3 - noise reduction box, 4 - power element, 5 - transmission element, 6 - controller, 7 - fixing component, 8 - braking element, 9 - test base plate, 10 - test bracket, 11 - vibration damping member, 12 - control component, 13 - industrial control computer, 14 - load component, 15 - load box body, 16 - load device, 17 - load component, 18 - hydraulic sensor, 19 - state parameter sensor, 20 - flange, 21 - power supply component. Specific embodiments

[0028] Next, the technical solutions in the embodiments of this specification will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this specification. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or server including a series of steps or units does not necessarily have to be limited to those clearly listed steps or units, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0030] As Figure 1-6 shown, the present invention provides a vehicle braking element test device, and the above device includes a driving component 1 and a test component 2; the above driving component 1 and the above test component 2 are separately arranged;

[0031] The above-mentioned driving component 1 includes a noise reduction box 3, a power element 4 and a transmission element 5; a sound absorption part is arranged on the inner surface of the above-mentioned noise reduction box 3; the above-mentioned power element 4 is arranged inside the above-mentioned noise reduction box 3, and the above-mentioned power element 4 is detachably connected to the above-mentioned noise reduction box 3; the above-mentioned transmission element 5 is arranged between the above-mentioned power element 4 and the above-mentioned test component 2; one side of the above-mentioned transmission element 5 close to the above-mentioned power element 4 is detachably connected to the above-mentioned power element 4; one side of the above-mentioned transmission element 5 close to the above-mentioned test component 2 penetrates through the side surface of the above-mentioned noise reduction box 3 and is detachably connected to the above-mentioned test component 2; the side of the above-mentioned power element 4 away from the above-mentioned transmission element 5 is electrically connected to a controller 6; the above-mentioned controller 6 is arranged on the side of the above-mentioned driving component 1 away from the above-mentioned test component 2; the above-mentioned controller 6 is used to send a driving signal to the above-mentioned power element 4 to enable the above-mentioned power element 4 to simulate the test working condition of the brake pedal; the above-mentioned power element 4 receives the above-mentioned driving signal to drive the above-mentioned transmission element 5 and drives the above-mentioned test component 2 to perform the braking operation corresponding to the above-mentioned brake pedal.

[0032] In some embodiments, as Figure 1 shown, the driving component 1 can be a driving system, the test component 2 can be a fixture system, the noise reduction box 3 can be a servo motor housing, the sound absorption part can be damping material and sound absorption cotton, the power element 4 can be a servo motor, the transmission element 5 can be a driving push rod, and the controller 6 can be a servo motor controller. In the vehicle brake component test device, the driving system and the fixture system are separated. The servo motor controller controls the servo motor to provide driving force according to a preset program to simulate different braking working conditions, such as different pressure reduction speeds or push rod forward speeds. After being driven, the servo motor drives the movement of the driving push rod through its output shaft. The movement of the driving push rod simulates the action of the brake pedal, pushes the push rod of the intelligent brake, and enables it to perform the braking operation. Through the power element and its controller, precise control of the brake push rod speed / building pressure speed is achieved, ensuring that the conditions of each test are consistent, thereby improving the controllability and repeatability of the test; at the same time, by designing a noise reduction box and arranging the power element inside the noise reduction box, the error or noise caused by the vibration of the power element is reduced, ensuring the stability of the power element during high-speed operation. At the same time, sound absorption parts are arranged inside the noise reduction box to absorb the noise generated during the operation of the power element, reduce the influence of external noise on the test results, ensure the quietness of the test environment, improve the test accuracy, effectively isolate the vibration and noise generated during the operation of the power element from affecting the brake component test, and ensure the accuracy of the test; and the separated design of the driving component and the test component also effectively reduces the interference introduced by vibration and noise during the test process, makes the test environment purer, and reduces external interference.

[0033] In some other embodiments, the driving component 1, the testing component 2, the noise reduction box 3, the sound absorption parts, the power element 4, the transmission element 5, and the controller 6 can be set according to the actual situation.

[0034] Wherein, a fixing component 7 is arranged inside the noise reduction box 3; the fixing component 7 is detachably connected to the noise reduction box 3; the power element 4 is arranged on one side of the fixing component 7 away from the noise reduction box 3; the power element 4 is detachably connected to the fixing component 7.

[0035] In some embodiments, as Figures 2-3 shown, the fixing component 7 can be a servo motor support. The servo motor and the servo motor support are separately encapsulated in the servo motor box, and there are two servo motor supports, which are respectively arranged on both sides inside the servo motor box for fixing the servo motor, providing necessary support for the servo motor, ensuring the stability of the power element during operation, reducing the influence of vibration on the test results, and helping to improve the accuracy and repeatability of the test.

[0036] In some other embodiments, the fixing component 7 can be set according to the actual situation.

[0037] Wherein, the testing component 2 includes a braking element 8; the braking element 8 is arranged on the side of the transmission element 5 away from the power element 4; the braking element 8 is pushed by the transmission element 5 and performs the braking operation corresponding to the brake pedal;

[0038] The testing component 2 further includes a test base plate 9 and a test bracket 10; the test bracket 10 is detachably connected to the test base plate 9; the braking element 8 is arranged on one side of the test bracket 10 away from the test base plate 9; the braking element 8 is detachably connected to the test bracket 10.

[0039] In some embodiments, as Figure 2 、 Figure 4 shown, the braking element 8 can be an intelligent brake, and the intelligent brake itself has a push rod for connecting the brake pedal; during braking, the transmission element 5 drives the braking element 8 to perform the braking operation corresponding to the pedal; the test base plate 9 can be a base plate, the test bracket 10 can be a mounting bracket, and the intelligent brake is mounted on the mounting bracket and then fixed to the base plate as a whole. The detachable design among the test base plate, the test bracket and the braking element enables the testing of different models or types of braking elements without remanufacturing or adjusting the entire test bench, improving the versatility and adaptability of the test platform, saving time and labor costs, and reducing the maintenance difficulty and cost.

[0040] In some other embodiments, the braking element 8, the test base plate 9 and the test bracket 10 can be set according to the actual situation.

[0041] Among them, the above-mentioned driving component 1 also includes a plurality of vibration damping members 11; the above-mentioned vibration damping members 11 are symmetrically distributed along the central axis of the above-mentioned transmission element 5; a first through hole is arranged on the above-mentioned fixing component 7; a second through hole is arranged on the side of the above-mentioned noise reduction box 3; the above-mentioned vibration damping member 11 is detachably connected to the above-mentioned noise reduction box 3 through the above-mentioned second through hole; the side of the above-mentioned vibration damping member 11 close to the above-mentioned fixing component 7 passes through the above-mentioned first through hole; the side of the above-mentioned vibration damping member 11 away from the above-mentioned fixing component 7 is detachably connected to the above-mentioned test bracket 10.

[0042] In some embodiments, Figures 2-3 As shown, the vibration damping member 11 can be a balancing push rod. For example, there can be two balancing push rods, and the fixing component 7 can be a servo motor support. The two balancing push rods are symmetrically distributed along the central axis of the driving push rod. The central axes of the first through hole and the second through hole can be on the same straight line, so that the balancing push rod is parallel to the driving push rod, and one end is fixed to the servo motor support through the first through hole, and the other end is fixed to the mounting bracket, thereby connecting the servo motor support and the mounting bracket. The design of the vibration damping part helps to improve the stability of the entire device. The vibration damping part is arranged in parallel with the transmission element and connects the fixed component and the test bracket to form a stable support structure. When the power element drives the transmission element to move, the force may cause the transmission element to deviate slightly or shake. The presence of the vibration damping part can effectively limit this deviation and ensure that the transmission element moves in a straight line along the predetermined trajectory. At the same time, the drive component and the test component are connected through the vibration damping part, which effectively disperses and absorbs part of the vibration energy, reduces the vibration and noise introduced when the power element drives the transmission element, and enables the power element to more accurately control the push rod speed or pressure building speed according to the preset program, which helps to ensure that the movement of the transmission element during the test is smoother, thereby improving the accuracy and reliability of the test results, reducing the friction and wear between the transmission element and related components, and helping to extend the service life of the test device and the brake element itself.

[0043] In other embodiments, the vibration damping member 11 may be configured according to actual conditions.

[0044] Among them, the above-mentioned device also includes a control component 12; the above-mentioned control component 12 is separately arranged from the above-mentioned drive component 1; the above-mentioned control component 12 includes an industrial computer 13 and the above-mentioned controller 6; the above-mentioned industrial computer 13 is electrically connected to the above-mentioned controller 6; the above-mentioned industrial computer 13 is used to send control instructions to the above-mentioned controller 6 so that the above-mentioned controller 6 executes the above-mentioned control instructions.

[0045] In some embodiments, Figure 1 , Figure 6As shown, the control component 12 can be a data acquisition and control system, the controller 6 can be a servo motor controller. The data acquisition and control system consists of an industrial computer 13, a servo motor controller, and a control program. The industrial computer 13 sends instructions to the servo motor through the servo motor controller to control the actions of the servo motor according to a pre-set program, thereby achieving precise control of the speed / building pressure speed of the intelligent brake push rod. At the same time, the industrial computer 13 will collect data from various sensors on the test bench and process and analyze the collected data. The control component can collect and record key data of the braking element during the test in real time and monitor the changes of various parameters during the test, thus ensuring the consistency of the test conditions, helping to analyze the behavior of the braking element under different working conditions, and improving the repeatability and reliability of the test results.

[0046] In some other embodiments, the control component 12 can be set according to the actual situation.

[0047] Among them, the above device further includes a load component 14; the above load component 14 includes a load box body 15; the inner surface of the above load box body 15 is provided with the above sound-absorbing parts; a plurality of load devices 16 are arranged inside the above load box body 15.

[0048] In some embodiments, as Figure 5 shown, the load component 14 can be a load system, the load box body 15 can be a load box, the sound-absorbing parts can be damping materials and sound-absorbing cotton. Exemplarily, 4 load devices 16 can be arranged inside the load box, damping materials and sound-absorbing cotton are pasted on the inner wall of the load box, and the load devices 16 are separately encapsulated in the load box and are separately arranged from the test component 2, and are used to provide necessary load for the operation of the braking element 8. By setting the load component to simulate the resistance that the brake needs to overcome when the vehicle brakes, the test can more realistically reflect the working environment of the braking element in actual use, which helps to ensure that the load conditions of each test are consistent, thereby improving the accuracy of the test results. At the same time, the design of the sound-absorbing parts reduces the noise generated when the load component works, reduces the interference with the noise test of the braking element, and ensures the accuracy of the noise test results. The separate design reduces the mutual interference between different components and ensures the independence and accuracy of each test link.

[0049] In some other embodiments, the load component 14 and the load box body 15 can be set according to the actual situation.

[0050] Among them, the above load device 16 includes a load part 17 and a hydraulic sensor 18; the above hydraulic sensor 18 is detachably connected to the above load part 17; the above load part 17 is used to simulate the amount of brake fluid required when the vehicle brakes; the above hydraulic sensor 18 is used to detect the pressure value inside the above load part 17 and feedback it to the above industrial computer 13.

[0051] In some embodiments, as Figure 5 shown, the load component 17 can be a cylinder load / caliper load. In fact, four load components 17 form a group of loads, including four cylinder loads / caliper loads, which are used to simulate the four wheel cylinders of a vehicle. Each cylinder load / caliper load corresponds to a hydraulic sensor 18. Among them, the load is adjusted by the volume of the cylinder, so as to simulate the liquid storage amount and stiffness required for the braking of an automotive brake. The volume of the cylinder will be adjusted according to the liquid storage amount and stiffness of the brake of the adapted vehicle model. The hydraulic sensor 18 is used to feedback the pressure inside the cylinder, that is, the simulated wheel cylinder pressure, and feedback it to the industrial control computer 13. The load assembly simulates the amount of brake fluid required by the brake during vehicle braking through the load component, that is, the resistance to be overcome, so that the test can more realistically reflect the working environment of the intelligent brake in actual use, thereby obtaining more accurate test results. And by adjusting the volume of the load component to change the simulated load conditions, the test can simulate the braking system characteristics of different vehicle models according to different test requirements, so as to comprehensively evaluate the performance of the braking element under various working conditions. At the same time, the hydraulic sensor can monitor the pressure change under the load condition in real time and feedback these data to the control component, which helps to ensure that the load conditions of each test are consistent, thereby improving the accuracy of the test results.

[0052] In other embodiments, the load component 17 can be set according to the actual situation.

[0053] Among them, the above test component 2 further includes a state parameter sensor 19; the state parameter sensor 19 is arranged between the transmission element 5 and the braking element 8; the state parameter sensor 19 is detachably connected to the transmission element 5; the state parameter sensor 19 is detachably connected to the braking element 8; the state parameter sensor 19 is used to collect the state parameters of the braking element 8 and feedback them to the industrial control computer 13.

[0054] In some embodiments, as Figure 4As shown, the state parameter sensor 19 can be a pedal force sensor and a displacement sensor, the braking element 8 can be an intelligent brake, the pedal force sensor and the displacement sensor are connected to the driving push rod and the intelligent brake, and the pedal force sensor and the displacement sensor are detachably connected to the driving push rod and the intelligent brake respectively. Since the intelligent brake itself has a push rod, when the intelligent brake performs a braking operation, the pedal force sensor detects the push rod force of the intelligent brake, the displacement sensor detects the push rod displacement of the intelligent brake, and feeds back the detected push rod force and push rod uniqueness to the industrial control computer 13, and the industrial control computer 13 collects and records the state parameters of the intelligent brake in real time. The state parameter sensor can monitor the force and displacement of the push rod in the braking element in real time, and these data are used to confirm whether the power element correctly drives the push rod in the braking element according to the preset program, which helps to ensure that each test is carried out under the same conditions, improve the consistency and reliability of the test results, and at the same time helps to analyze the performance and noise characteristics of the braking element.

[0055] In some other embodiments, the state parameter sensor 19 can be set according to the actual situation.

[0056] Wherein, a flange 20 is provided at one end of the above-mentioned braking element 8 close to the above-mentioned state parameter sensor 19; the above-mentioned flange 20 is sleeved on the surface of the above-mentioned braking element 8.

[0057] In some embodiments, as Figure 4 shown, the flange 20 can be a mounting flange 20, the braking element 8 can be an intelligent brake, and the mounting flange 20 is flange-connected to the intelligent brake to provide installation and fixing conditions for the intelligent brake. The design of the flange ensures the stable installation of the braking element during the test, reduces the additional vibration or noise caused by the unstable installation of the braking element during the test, ensures the purity of the test environment, and the braking element can be installed at the same position in the same way each time during the test, ensuring the consistency of the test conditions, improving the repeatability of the test results, and at the same time making it easier to replace different braking elements and improving the test efficiency.

[0058] In some other embodiments, the flange 20 can be set according to the actual situation.

[0059] Wherein, the above-mentioned device further includes a power supply assembly 21; the above-mentioned power supply assembly 21 includes a first power supply device and a second power supply device; the above-mentioned first power supply device and the above-mentioned second power supply device are separately arranged; the above-mentioned first power supply device is electrically connected to the above-mentioned braking element 8; the above-mentioned first power supply device is used to supply power to the above-mentioned braking element 8; the above-mentioned second power supply device is electrically connected to the above-mentioned power element 4; the above-mentioned second power supply device is used to supply power to the above-mentioned power element 4.

[0060] In some embodiments, as Figure 1As shown, the power supply assembly 21 can be a power supply system. The first power supply device can be a programmable voltage regulator, and the second power supply device can be a servo motor power supply. The braking element 8 can be an intelligent brake, and the power element 4 can be a servo motor. The programmable voltage regulator supplies power to the intelligent brake, and the servo motor power supply supplies power to the servo motor of the drive system. Powering the braking element by the first power supply device ensures that the braking element is not affected by voltage fluctuations during the test, guaranteeing the accuracy of the test results. Moreover, the first power supply device can adjust the output voltage according to the test requirements, which is particularly useful for testing the performance of braking elements under different voltage conditions. The second power supply device powers the power element, providing the current and voltage required by the power element to ensure that the power element can operate smoothly and efficiently. At the same time, the power supply assembly is designed as an independent module, which can more easily adapt to different types of brakes or test requirements without the need to frequently change the power configuration, improving the usability of the test device.

[0061] In some other embodiments, the power supply assembly 21, the first power supply device, and the second power supply device can be set according to the actual situation.

[0062] The working principle of the vehicle braking element test device of the present invention is as follows:

[0063] When a noise test is required, the industrial computer 13 in the control assembly 12 generates control instructions according to a preset test program and sends them to the controller 6 through the communication interface. The controller 6 converts these instructions into specific actions of the power element 4. The power element 4 provides an accurate driving force according to the instructions, simulates the action of the brake pedal during vehicle braking through the transmission element 5, and pushes the push rod of the braking element 8. At the same time, the vibration damping member 11 is arranged in parallel with the transmission element 5, connecting the fixed component 7 and the test bracket 10 to increase the stability of the system and reduce the vibration introduced when the power element 4 is driven. The power element 4 and related components are encapsulated in a noise reduction box 3 containing sound-absorbing parts to reduce the influence of working noise on the test results. The load assembly 14 simulates the resistance during the actual braking process by adjusting the load member 17 and real-time monitors the pressure change through the hydraulic sensor 18 to ensure the consistency of the test conditions. In addition, the state parameter sensor 19 real-time collects the force and displacement data of the braking element 8 during the test and feeds them back to the control assembly 12 for recording and analysis. The entire device powers the braking element 8 by the first power supply device and powers the power element 4 by the second power supply device to ensure the stability and safety of the power supply during the test.

[0064] The beneficial effects of the present invention are:

[0065] The vehicle braking element testing device of the present invention includes a driving component and a testing component; the driving component and the testing component are separately arranged; the driving component includes a noise reduction box, a power element and a transmission element; a sound absorption part is arranged on the inner surface of the noise reduction box; the power element is arranged inside the noise reduction box, and the power element is detachably connected to the noise reduction box; the transmission element is arranged between the power element and the testing component; one side of the transmission element close to the power element is detachably connected to the power element; one side of the transmission element close to the testing component penetrates through the side surface of the noise reduction box and is detachably connected to the testing component; the side of the power element away from the transmission element is electrically connected to a controller; the controller is arranged on the side of the driving component away from the testing component; the controller is used to send a driving signal to the power element to enable the power element to simulate the testing working condition of the brake pedal; the power element receives the driving signal to drive the transmission element and drives the testing component to perform the braking operation corresponding to the brake pedal. The present invention uses a controllable power element as a driving device, realizing stable, controllable and repeatable working conditions of the braking element during the noise test. Moreover, the driving component and the testing component are designed in a separated manner and are connected through the transmission element and the vibration damping part, reducing the vibration introduced by the driving component. In addition, by pasting sound absorption parts on the inner wall of the noise reduction box and encapsulating the power element separately, the noise introduced by the power element is significantly reduced, ensuring the accuracy of the noise test result, making the test environment purer and the test result more reliable, and providing an effective tool for the performance evaluation of the braking element.

[0066] The above embodiments are only used to illustrate the technical concept and characteristics of the present invention. The purpose is to enable those ordinary technicians in the art to understand the content of the present invention and implement it accordingly, and it cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the essence of the content of the present invention should be covered within the protection scope of the present invention.

Claims

1. A vehicle brake component testing device, characterized in that: The device comprises a driving component (1) and a testing component (2); the driving component (1) and the testing component (2) are arranged separately; The driving assembly (1) comprises a noise reduction box (3), a power element (4) and a transmission element (5); the inner surface of the noise reduction box (3) is provided with a silencer component; the power element (4) is arranged inside the noise reduction box (3), and the power element (4) and the noise reduction box (3) are detachably connected; the transmission element (5) is arranged between the power element (4) and the test assembly (2); the side of the transmission element (5) close to the power element (4) is detachably connected to the power element (4); the side of the transmission element (5) close to the test assembly (2) passes through the The side of the noise reduction box (3) is detachably connected to the test component (2); the side of the power element (4) away from the transmission element (5) is electrically connected to the controller (6); the controller (6) is arranged on the side of the drive component (1) away from the test component (2); the controller (6) is used to send a drive signal to the power element (4) so ​​that the power element (4) simulates the test condition of the brake pedal; the power element (4) receives the drive signal to drive the transmission element (5), and drives the test component (2) to perform the braking operation corresponding to the brake pedal.

2. The device according to claim 1, characterized in that A fixing component (7) is arranged inside the noise reduction box (3); the fixing component (7) is detachably connected to the noise reduction box (3); the power element (4) is arranged on a side of the fixing component (7) away from the noise reduction box (3); the power element (4) is detachably connected to the fixing component (7).

3. The device according to claim 2, characterized in that The test assembly (2) comprises a brake element (8); the brake element (8) is arranged on a side of the transmission element (5) away from the power element (4); the brake element (8) is pushed by the transmission element (5) and performs a braking operation corresponding to the brake pedal; The test assembly (2) further comprises a test base plate (9) and a test bracket (10); the test bracket (10) is detachably connected to the test base plate (9); the brake element (8) is provided on a side of the test bracket (10) away from the test base plate (9); the brake element (8) is detachably connected to the test bracket (10).

4. The device according to claim 3, characterized in that The driving assembly (1) further comprises a plurality of vibration damping members (11); the vibration damping members (11) are symmetrically distributed along the central axis of the transmission element (5); a first through hole is provided on the fixing member (7); a second through hole is provided on the side of the noise reduction box (3); the vibration damping member (11) is detachably connected to the noise reduction box (3) via the second through hole; a side of the vibration damping member (11) close to the fixing member (7) passes through the first through hole; and a side of the vibration damping member (11) away from the fixing member (7) is detachably connected to the test bracket (10).

5. The device according to claim 2, characterized in that The device further comprises a control component (12); the control component (12) is arranged separately from the drive component (1); the control component (12) comprises an industrial computer (13) and the controller (6); the industrial computer (13) is electrically connected to the controller (6); the industrial computer (13) is used to send a control instruction to the controller (6) so that the controller (6) executes the control instruction.

6. The device according to claim 5, characterized in that The device further comprises a load assembly (14); the load assembly (14) comprises a load box (15); the inner surface of the load box (15) is provided with the silencer component; and a plurality of load devices (16) are provided inside the load box (15).

7. The device according to claim 6, characterized in that The load device (16) comprises a load component (17) and a hydraulic sensor (18); the hydraulic sensor (18) and the load component (17) are detachably connected; the load component (17) is used to simulate the amount of brake fluid required when the vehicle is braked; the hydraulic sensor (18) is used to detect the pressure value inside the load component (17) and feed it back to the industrial computer (13).

8. The device according to claim 5, characterized in that The test component (2) further comprises a state parameter sensor (19); the state parameter sensor (19) is arranged between the transmission element (5) and the brake element (8); the state parameter sensor (19) is detachably connected to the transmission element (5); the state parameter sensor (19) is detachably connected to the brake element (8); the state parameter sensor (19) is used to collect state parameters of the brake element (8) and feed them back to the industrial computer (13).

9. The device according to claim 8, characterized in that A flange (20) is provided at one end of the brake element (8) close to the state parameter sensor (19); the flange (20) is sleeved on the surface of the brake element (8).

10. The device according to claim 1, characterized in that The device also includes a power supply component (21); the power supply component (21) includes a first power supply device and a second power supply device; the first power supply device and the second power supply device are separately arranged; the first power supply device is electrically connected to the braking element (8); the first power supply device is used to supply power to the braking element (8); the second power supply device is electrically connected to the power element (4); the second power supply device is used to supply power to the power element (4).

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