Integrated electronic brake system assembly electrical performance test platform

Abstract

The application discloses an integrated electronic brake system assembly electric performance test platform, which comprises a whole machine frame and a test execution mechanism, and the test execution mechanism comprises a base plate, a clamping tool and a thrust test tool are installed on the base plate, the clamping tool comprises two clamping blocks and a positioning bottom block, the two clamping blocks are both slidingly installed on the base plate, the positioning bottom block is used for supporting an assembly workpiece, an open cavity is arranged in the clamping block, the two clamping blocks are configured to slide and clamp each other and hold the assembly workpiece through the open cavity, the stability of clamping is improved, and the thrust test tool can be used for force test on a push rod of the assembly workpiece, only by connecting the assembly workpiece with corresponding signal receiving equipment through a line and a pipeline, the test on related data can be automatically carried out, and through the arrangement of the interlayer, the working state of the assembly workpiece under different temperature environments can be simulated in cooperation with an input pipe and an output pipe, and the diversification of test data is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of automobile manufacturing, in particular to an integrated electronic braking system assembly electric performance test platform. BACKGROUND

[0002] With the rapid development of the automobile industry, the technical level is gradually improved, and the demand for automobiles is greatly increased. Safety is the eternal theme pursued by the automobile industry, traffic accidents occur frequently, and cases of huge personal safety and economic losses are common, therefore, with the progress of global technology year by year, the requirement for active safety of driving is also higher and higher, and the high-integration braking system (Integrated Braking Control system, IBC for short) emerges as the times require with the improvement of intelligent automobile equipment requirements; as an integrated unit, IBC replaces a large number of independent automobile parts including electronic stability control system ESC, electronic controller, sensor, vacuum booster, related cable, switch, vacuum pump and the like, has more than 20 functions including full ESC function, double MCU redundancy design, functional safety ASIL-D level, RBU redundancy backup and mechanical braking backup to ensure driving braking safety, double control EPB to ensure parking braking safety; the integrated electronic braking system (IBC system) is widely used in modern automobiles due to its high integration, rapid response, precise control and the like;

[0003] However, the electric performance of the IBC assembly is directly related to the braking safety and performance of the vehicle, the integrated electronic braking system has a complex structure and a harsh working environment, and therefore it is a technical problem to comprehensively and accurately test the electric performance of the integrated electronic braking system, and it is particularly important to comprehensively and efficiently test the electric performance of the integrated electronic braking system at the end of the production line. SUMMARY

[0004] The application aims to provide an integrated electronic braking system assembly electric performance test platform, which can effectively simulate the test of the integrated electronic braking system assembly under multiple working conditions and improve the overall production capacity and product quality of the production line.

[0005] To solve the above technical problems, the present application adopts the following technical solutions: an integrated electronic brake system assembly electrical performance test platform, comprising a whole machine frame and a test execution mechanism installed in the whole machine frame, the test execution mechanism comprising a base plate, a clamping tool and a thrust test tool being installed on the base plate, the clamping tool comprising two clamping blocks and a positioning bottom block, the two clamping blocks being located on both sides of the positioning bottom block and being slidably installed on the base plate, the positioning bottom block being used for supporting an assembly workpiece, an open cavity being provided in the clamping block, the two clamping blocks being configured to slide towards each other to clamp the assembly workpiece through the open cavity, or vice versa; and a push rod of the assembly workpiece extending out of the clamping tool when the two clamping blocks are clamped and being connected with the thrust test tool, the thrust test tool being used for controlling the push rod to move in the direction of the push rod axis.

[0006] Preferably, a clamping layer is provided in the clamping block, the clamping layer covering the corresponding open cavity area, input pipes and output pipes of two barrel clamping layers being provided on at least one of the clamping blocks, and the clamping layers of the two clamping blocks being communicated when the two clamping blocks are clamped.

[0007] Preferably, the thrust test tool comprises an electric telescopic cylinder and a connecting rod, and a multi-mode adjustment structure, the telescopic end of the electric telescopic cylinder being connected with the connecting rod through the multi-mode adjustment structure, and the connecting rod being spliced with the push rod of the assembly workpiece; the multi-mode adjustment structure being configured to control the connecting rod to move synchronously with the telescopic end of the electric telescopic cylinder, or to control the connecting rod to move step by step, and the push rod being free to return between two connected step actions.

[0008] Preferably, the multi-mode adjustment structure comprises:

[0009] a center rod, one end of the center rod being connected with the connecting rod, and a rigid limiting block and an elastic limiting block group being provided on the center rod in the circumferential direction, the elastic limiting block group comprising a plurality of elastic limiting blocks being provided in the circumferential direction of the center rod and being spaced apart;

[0010] an outer sleeve, one end of the outer sleeve being sleeved on the other end of the center rod, and the center rod being slidably installed in the outer sleeve; the other end of the outer sleeve being connected with the telescopic end of the electric telescopic cylinder; the outer sleeve being installed with a protrusion; and

[0011] the outer sleeve being configured to rotate as a whole or partially so that the protrusion corresponds to the rigid limiting block or the protrusion corresponds to the elastic limiting block.

[0012] Preferably, two groups of elastic limiting block groups are provided on the center rod, the number of elastic limiting blocks of the two groups of elastic limiting block groups in the circumferential direction of the center rod being different.

[0013] Preferably, the substrate is mounted with a rotating disc for controlling the rotation of the substrate.

[0014] Preferably, the substrate is mounted with a pitch adjustment structure configured to dynamically adjust the pitch angle of the substrate with the horizontal plane.

[0015] Preferably, the substrate is mounted with a rotating disc, the pitch adjustment structure is mounted between the rotating disc and the machine frame table, the rotating disc is movably connected with a rotating shaft at the bottom of the rotating disc, the rotating shaft is used to drive the rotating disc to rotate, the pitch adjustment structure comprises at least one air bag located at the bottom of the rotating disc, and each air bag is independently circumscribed with an air pump.

[0016] Beneficial effects: the two clamping blocks are used for clamping the assembly workpiece in a combined manner, the stability of clamping is improved, and the push rod of the assembly workpiece can be tested by cooperating with the push test tool. Only by connecting the assembly workpiece with the corresponding signal receiving equipment through a line and a pipeline, the related data can be tested automatically, the detection efficiency and accuracy are improved, and the accuracy and efficiency of the IBC assembly electric performance test are significantly improved. Through the setting of the interlayer, cooperating with the input pipe and the output pipe, the refrigerant / gas or the heating liquid / gas can be input, so as to simulate the working state of the assembly workpiece under different temperature environments. The test under multiple environments is realized, the diversity of test data is improved, and the whole process is realized automatically, so that the overall productivity of the production line and the product quality are improved.

[0017] Through the action of the multi-mode adjustment structure, the connecting rod can be controlled to move synchronously with the extension end of the electric telescopic cylinder, linear push test is realized, or the connecting rod is controlled to move step by step and move back in stages, so that the working state of the assembly workpiece in the actual process is simulated, the precision of the test is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings are included to provide a further understanding of the application, and constitute a part of the specification, together with the embodiments of the application, for explaining the application, and do not constitute a limitation on the application.

[0019] In the drawings:

[0020] Figure 1 is a structural schematic view of an integrated electronic brake system assembly electric performance test platform of the application;

[0021] Figure 2 is a side view of the integrated electronic brake system assembly electric performance test platform of the application;

[0022] Figure 3 is a top view of the integrated electronic brake system assembly electric performance test platform of the application;

[0023] Figure 4 is a structural schematic diagram of a test execution mechanism of the present application;

[0024] Figure 5 is a structural schematic diagram of a multi-mode adjustment structure of the present application;

[0025] Figure 6 is a structural schematic diagram of a plurality of sets of elastic limiting blocks of the present application;

[0026] Figure 7 is a structural schematic diagram of a turntable and pitch adjustment structure of the present application;

[0027] In the figure, 1 is a whole machine frame; 21 is a base plate; 221 is a clamping block; 222 is a positioning bottom block; 223 is an open cavity; 224 is a sandwich layer; 225 is an input pipe; 226 is an output pipe; 227 is a plug pipe; 23 is a sliding slot; 31 is an electric telescopic cylinder; 32 is a connecting rod; 331 is a center rod; 332 is an outer sleeve; 333 is a rigid limiting block; 334 is an elastic limiting block; 335 is a protruding block; 4 is a turntable; 5 is a rotating shaft; 6 is an air bag; and 7 is a partition. DETAILED DESCRIPTION

[0028] The embodiments of the present application will be described below in conjunction with the accompanying drawings. The terms used in the embodiment part of the present application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0029] An integrated electronic brake system assembly electrical performance test platform, referring to Figures 1-3 Fig. 1, includes a whole machine frame 1 and a test execution mechanism installed in the whole machine frame 1. According to test requirements, an upper computer, a motor cabinet control board, a lighting lamp, an indicator lamp, and an air source processor can be arranged in the whole machine frame 1, and related equipment and sensors for testing motor initial angle, servo cylinder stroke, displacement and pressure sensor function, wheel speed, electromagnetic coil, pump motor, function indicator lamp, and function switch can be arranged in the whole machine frame 1 according to specific test conditions.

[0030] The test execution mechanism includes a base plate 21, on which a clamping tool and a thrust test tool are mounted, the clamping tool includes two clamping blocks 221 and a positioning base block 222, the two clamping blocks 221 are located on both sides of the positioning base block 222 and are slidably mounted on the base plate 21, the positioning base block 222 is used for supporting an assembly workpiece, an open cavity 223 is arranged in each clamping block 221, and the two clamping blocks 221 are configured to slide towards each other to clamp the assembly workpiece and embrace the assembly workpiece through the open cavities 223, or slide away from each other to release the assembly workpiece; for the connection of the assembly workpiece, a connecting piece can be arranged in the open cavity 223 at a position corresponding to an interface of the assembly workpiece, automatic plugging is performed when embracing, or a hole is arranged on the clamping block 221, and the hole is connected to the interface of the assembly workpiece through an external pipeline and a line hole to obtain relevant data of the assembly workpiece in the test process; a push rod of the assembly workpiece extends out of the clamping tool when the two clamping blocks 221 embrace, and is connected to the thrust test tool, and the thrust test tool is used for controlling the push rod to move in the direction of the push rod axis.

[0031] During the test, the assembly workpiece is placed on the positioning base block 222, then the two clamping blocks 221 are controlled to move towards each other and clamp and embrace the positioning base block 222, for the movement of the clamping blocks 221, a sliding groove 23 can be arranged on the base plate 21, and each clamping block 221 is installed in the sliding groove 23 through a sliding block, the movement of the sliding block can be realized through a conventional driving mode such as a screw rod and a nut, and the two clamping blocks are controlled to move towards or away from each other along the sliding groove 23, after the assembly workpiece is clamped, the pipeline and the line are connected, and the power-on test is performed; the push rod is moved by controlling the thrust test tool to push the push rod; and relevant data of the assembly workpiece is collected during the test; for example, the host computer can collect current values through corresponding current sensors to judge whether the relevant function circuit is qualified, the host computer controls corresponding valves to act in turn to judge current intervals and coil effectiveness, an EPB switch control electronic parking caliper can be used to clamp and release, current values of caliper motors, clamping voltage values of friction plate strain sensors, EPB switch states and CAN messages of left and right caliper currents are collected at positive and negative electrodes of the caliper, the clamping and releasing caliper test state is tested, and whether the IBC related function is qualified is judged.

[0032] In an embodiment, as shown in FIG. 1, Figure 4 At least one clamping block 221 is provided with an input pipe 225 and an output pipe 226 of two-layered clamping layers 224, and the clamping layers 224 of the two clamping blocks 221 are communicated when the two clamping blocks 221 embrace;

[0033] For example, Figure 4For example, an input pipe 225 and an output pipe 226 are arranged on a right clamping block 221, and a pipe 227 connecting the clamping layer 224 is arranged on a left clamping block 221, and a corresponding pipe socket (not shown in the figure, corresponding to the position of the pipe 227) connecting the clamping layer 224 is arranged on the right clamping block 221. When the two clamping blocks 221 are close to each other, the pipe 227 is inserted into the pipe socket, and the clamping layers 224 in the two clamping blocks 221 are connected. In order to improve the guidance of the airflow or liquid, the clamping layer 224 can be planned into one or more channels by a partition plate (not shown in the figure, the channel for guiding the airflow or liquid can be formed by arranging a partition plate in the clamping layer 224). The refrigeration or heating airflow or liquid enters through the input pipe 225, then passes through the clamping in the two clamping blocks 221, and then flows out from the output pipe 226, thereby realizing the temperature regulation of the open cavity 223 and controlling the test of the open cavity 223 in different temperature environments.

[0034] In an embodiment, referring to Figure 4 As shown, the thrust test tool includes an electric telescopic cylinder 31 and a connecting rod 32, and a multi-mode adjusting structure. The telescopic end of the electric telescopic cylinder 31 is connected to the connecting rod 32 through the multi-mode adjusting structure, and the connecting rod 32 is spliced with the push rod of the assembly workpiece. The multi-mode adjusting structure is configured to control the connecting rod 32 to move synchronously with the telescopic end of the electric telescopic cylinder 31, or to control the connecting rod 32 to move step by step, and the push rod is free to return between two connected step actions. That is, the following two modes can be used for testing:

[0035] Mode one, continuous driving, the connecting rod 32 is controlled to move synchronously through the multi-mode adjusting structure, thereby simulating the continuous depression or continuous lifting of the pedal;

[0036] Mode two, discrete driving, the connecting rod 32 is controlled to move step by step through the multi-mode adjusting structure, and the connecting rod 32 is free to return under the action of the push rod between two steps, thereby simulating the continuous point stepping and lifting of the pedal in reality, and thereby obtaining diversified data.

[0037] Further, in a specific embodiment, referring to Figures 4-6As shown, the multi-mode adjusting structure includes a center rod 331 and a sleeve 332, one end of the center rod 331 is connected with the connecting rod 32, the other end is inserted into the sleeve 332 and is arranged to slide in the sleeve 332; and the center rod 331 is provided with a rigid limiting block 333 and an elastic limiting block 334 group in the circumferential direction, the elastic limiting block 334 group includes a plurality of elastic limiting blocks 334 arranged in the circumferential direction of the center rod 331 and spaced apart; the other end of the sleeve 332 is connected with the telescopic end of the electric telescopic cylinder 31; the sleeve 332 is provided with a protrusion 335; and the sleeve 332 is configured to rotate as a whole or partially to make the protrusion 335 correspond to the rigid limiting block 333 or to make the protrusion 335 correspond to the elastic limiting block 334.

[0038] Mode one, by rotating the sleeve 332 to make the protrusion 335 correspond to the rigid limiting block 333, at this time, when the telescopic end of the telescopic cylinder pushes the sleeve 332 to move, the protrusion 335 acts on the rigid limiting block 333 to synchronously push the center rod 331 to move, thereby synchronously pushing the push rod to move;

[0039] Mode two, by rotating the sleeve 332 to make the protrusion 335 correspond to the elastic limiting block 334, at this time, when the telescopic end of the telescopic cylinder pushes the sleeve 332 to move, the center rod 331 is first synchronously moved with the sleeve 332 under the elastic force of the elastic limiting block 334 itself, since the push rod in the assembly workpiece is provided with a spring, the resistance of the connecting rod 32 will increase with continuous pushing, therefore, when the resistance reaches a certain value, the elastic limiting block 334 is deformed, the protrusion 335 moves away from the elastic limiting block 334 and moves towards the next elastic limiting block 334, then the push rod will move back under the action of the self-provided spring, until the protrusion 335 contacts the next elastic limiting block 334, and the above operation is repeated to simulate the action of continuously stepping on and lifting the pedal; wherein the forces borne by the deformations of the elastic limiting blocks 334 can be the same or different.

[0040] For the rotation of the sleeve 332, one end thereof is rotationally connected with the telescopic end of the telescopic cylinder, which can be manually rotated before testing, or a motor can be installed at the rotationally connected position and controlled and driven by the upper computer.

[0041] Further, referring to Figure 6 As shown, the center rod 331 is provided with two groups of elastic limiting block 334 groups, the number of the elastic limiting blocks 334 of the two groups of elastic limiting block 334 groups in the circumferential direction of the center rod 331 is different; by making the protrusion 335 correspond to the elastic limiting blocks 334 of different groups, the stepping at different frequencies can be simulated.

[0042] In an embodiment, referring to Figure 7As shown, a turntable 4 is installed at the bottom of the substrate 21, and the turntable 4 is used to control the rotation of the substrate 21; a pitch adjustment structure is installed at the bottom of the substrate 21, and the pitch adjustment structure is configured to dynamically adjust the pitch angle of the substrate 21 with the horizontal plane. During the test, the turntable 4 can be controlled to rotate, simulate the body swing, and / or adjust the pitch angle of the substrate 21 through the pitch adjustment structure to simulate different slope environments; so as to realize the simulation test under multiple working conditions, and compared with the single static test, the dynamic multi-environment test more truly restores the actual working condition of the assembly workpiece, so as to obtain more actual data.

[0043] In a specific embodiment, referring to Figure 7 As shown, a turntable 4 is installed at the bottom of the substrate 21, and the pitch adjustment structure is installed between the turntable 4 and the table top of the whole machine frame 1, the bottom center of the turntable 4 is movably connected with a rotating shaft 5, for example, connected through a universal joint, the rotating shaft 5 is used to drive the turntable 4 to rotate, the pitch adjustment structure includes at least one air bag 6 located at the bottom of the turntable 4, and the air bag 6 is divided into several sections through a partition 7, and each section of the air bag 6 is independently connected with an air pump; a driving motor is arranged on the rotating shaft 5, the driving motor is used to control the rotation of the rotating shaft 5, so as to drive the turntable 4 to rotate, and the air pump is used to charge and discharge air into each section of the air bag 6, so as to adjust the inflation of each section of the air bag 6, and then adjust the pitch angle of the turntable 4 and the substrate 21. In addition, the pitch adjustment structure is not limited to the air bag 6, and other structures can be used to realize the pitch adjustment, for example, a plurality of telescopic cylinders are used to control.

[0044] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above-described embodiments, and for those skilled in the art, after learning the content described in the present application, some equivalent transformations and substitutions can be made without departing from the principles of the present application, and these equivalent transformations and substitutions should also be considered as belonging to the protection scope of the present application.

Claims

1. An integrated electronic braking system assembly electrical performance testing platform, characterized in that: The device includes a frame and a test execution mechanism installed within the frame. The test execution mechanism includes a base plate on which a clamping fixture and a thrust testing fixture are mounted. The clamping fixture includes two clamping blocks and a positioning base block. The two clamping blocks are located on both sides of the positioning base block and are slidably mounted on the base plate. The positioning base block is used to support the assembly workpiece. The clamping blocks have open cavities. The two clamping blocks are configured to slide close to each other and clamp the assembly workpiece through the open cavities, or to slide away from the assembly workpiece. Furthermore, when the two clamping blocks are in the closed state, the push rod of the assembly workpiece extends out of the clamping fixture and is connected to the thrust testing fixture, which is used to control the push rod to move in the direction of the push rod axis. The thrust testing fixture includes an electric telescopic cylinder and a connecting rod, as well as a multi-mode adjustment structure. The telescopic end of the electric telescopic cylinder is connected to the connecting rod through the multi-mode adjustment structure. The connecting rod is spliced ​​with the push rod of the assembly workpiece. The multi-mode adjustment structure is configured to control the connecting rod to move synchronously with the telescopic end of the electric telescopic cylinder, or to control the connecting rod to move in steps, and the push rod to move freely back between two consecutive stepping actions. The multi-mode regulation structure includes: A central rod, one end of which is connected to the connecting rod, and a rigid limiting block and an elastic limiting block group are provided on the central rod along the circumferential direction. The elastic limiting block group includes a plurality of elastic limiting blocks that are spaced apart along the circumferential direction of the central rod. An outer sleeve, one end of which is fitted onto the other end of the central rod, and the central rod slides within the outer sleeve; the other end of the outer sleeve is connected to the telescopic end of the electric telescopic cylinder; a protrusion is installed inside the outer sleeve; and The outer casing is configured to rotate as a whole or partially so that the protrusion corresponds to the rigid limiting block, or so that the protrusion corresponds to the elastic limiting block.

2. The integrated electronic braking system assembly electrical performance testing platform according to claim 1, characterized in that: The clamping block is provided with a sandwich layer, which covers the corresponding open cavity area. At least one clamping block is provided with an input pipe and an output pipe of the two sandwich layers, and when the two clamping blocks are closed, the sandwich layers of the two clamping blocks are connected.

3. The integrated electronic braking system assembly electrical performance testing platform according to claim 1, characterized in that: Two sets of elastic limiting blocks are provided on the central rod, and the number of elastic limiting blocks in the two sets of elastic limiting blocks along the circumferential direction of the central rod is different.

4. The integrated electronic braking system assembly electrical performance testing platform according to claim 1, characterized in that: A turntable is mounted on the bottom of the substrate, and the turntable is used to control the rotation of the substrate.

5. An integrated electronic braking system assembly electrical performance testing platform according to claim 1 or 4, characterized in that: A pitch adjustment structure is installed at the bottom of the substrate, and the pitch adjustment structure is configured to dynamically adjust the pitch angle between the substrate and the horizontal plane.

6. The integrated electronic braking system assembly electrical performance testing platform according to claim 5, characterized in that: A turntable is installed at the bottom of the base plate. A pitch adjustment structure is installed between the turntable and the frame table of the whole machine. A rotating shaft is movably connected to the bottom of the turntable. The rotating shaft is used to drive the turntable to rotate. The pitch adjustment structure includes at least one ring of airbags located at the bottom of the turntable. The airbags are divided into several sections, and each section of the airbag is independently connected to an external air pump.

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