An intelligent monitoring system for automotive road simulation tests

Abstract

The present invention provides an intelligent monitoring system for automotive road simulation tests, which includes a sensor assembly for detecting vehicles, a controller for receiving the information transmitted by the sensor assembly, an industrial control computer for controlling the controller, and an execution assembly for receiving the commands issued by the controller. The system of the present invention can monitor the state of the vehicle under test during the road simulation test, pause the test immediately and give an alarm prompt when a fault occurs, effectively avoiding secondary damage to the vehicle under test by the faulty component and damage to the test bench, and also preventing damage to the vehicle under test due to reasons such as out-of-control of the test bench.

Description

Technical Field

[0001] The present invention belongs to the technical field of monitoring, and in particular relates to an intelligent monitoring system for automotive road simulation tests. Background Art

[0002] Automotive road simulation tests need to be carried out on a road simulation test bench. Generally, the working conditions of road simulation tests are relatively harsh, and the components of the vehicle under test may be damaged at any time. If the test cannot be stopped in time when the components of the vehicle under test are damaged, it is very likely to cause more serious damage to other components under test, so that the fault source of the first damage or fracture in the test cannot be accurately found. Even more seriously, it may even lead to the damage of the road simulation test bench, causing serious economic losses. Therefore, test engineers often invest a lot of time and energy in observing the state of the vehicle under test during the test. Most engineers use the inspection method at fixed time intervals. For example, every two hours, the test will be paused to observe whether there are cracks or fractures in the key components of the vehicle under test, whether there is component detachment or liquid leakage. This observation method requires high experience of engineers, increases the test time, and consumes the energy of test engineers. Especially at night when the light is insufficient and the test engineers are fatigued, it is easier to miss inspections and misjudgments. Moreover, due to the concealment of crack initiation and the high growth rate of crack propagation speed, in many cases, relying solely on the naked eye observation of engineers cannot ensure that the test of the vehicle under test is stopped in time at the initial stage of component damage. Therefore, many engineers will pause the test late at night, which further reduces the test efficiency and equipment utilization rate. Therefore, a more scientific and convenient method is needed to monitor the effective progress of the test. The present invention is an intelligent monitoring system developed to solve the above problems, which can monitor the state of the vehicle under test in the road simulation test, pause the test immediately when a fault occurs, and give an alarm prompt. Summary of the Invention

[0003] In view of this, the present invention aims to provide an intelligent monitoring system for automotive road simulation tests to solve the problem that the test bench cannot stop in time when some components of the vehicle under test fail in the automotive road simulation test, effectively avoid secondary damage to the vehicle under test by the faulty components and damage to the test bench, and also prevent damage to the vehicle under test caused by reasons such as out-of-control of the test bench.

[0004] To achieve the above object, the technical solution of the present invention is realized as follows:

[0005] An intelligent monitoring system for automotive road simulation tests includes a sensor assembly for detecting the vehicle, a controller for receiving the information transmitted by the sensor assembly, an industrial control computer for controlling the controller, and an execution assembly for receiving the commands issued by the controller.

[0006] Further, the output end of the sensor assembly is connected to the receiving end of the controller, the output end of the controller is connected to the industrial control computer, the execution end of the controller is connected to the execution assembly, and the receiving end of the sensor is connected to the vehicle to be measured.

[0007] Further, the sensor assembly includes a temperature sensor, a force sensor, a strain gauge, an inclination sensor, and an acceleration sensor. The output ends of the temperature sensor, the force sensor, the strain gauge, the inclination sensor, and the acceleration sensor are respectively connected to the receiving end of the controller. The execution end of the controller is connected to the execution assembly, the output end of the controller is connected to the receiving end of the industrial control computer, and the control end of the industrial control computer is connected to the receiving end of the controller.

[0008] Further, the execution assembly includes an alarm module and a control module. The receiving end of the alarm module is connected to the control end of the controller, and the receiving end of the control module is connected to the control end of the controller.

[0009] The force sensor includes a base and a movable measurement assembly;

[0010] The movable measurement assembly is installed on the base. The base includes a first half base and a second half base. The first half base and the second half base are connected by a first driving device. The movable measurement assembly includes a first group of measurement components for measuring faults around the left tire of the vehicle and a second group of measurement components for measuring faults around the right tire of the vehicle. Second driving devices are respectively installed on the first half base and the second half base. The first group of measurement components is installed on the second driving device of the first half base, and the second group of measurement components is installed on the second driving device of the second half base.

[0011] Further, a threaded hole is provided on the side wall near the bottom end of the first half base, and a first rotating shaft hole is provided on the side wall near the bottom end of the second half base. The first rotating shaft hole penetrates through the side wall of the second base, and the first rotating shaft hole corresponds to the threaded hole. The first driving device is a first driving shaft. The first driving shaft is installed in the threaded hole and the first rotating shaft hole. One end of the first driving shaft extending through the first rotating shaft hole is connected to a handle on one side of the second half base. The end of the first driving shaft provided with the handle is installed in the first rotating shaft hole. The first driving shaft is rotatably connected to the second half base. A thread is provided at the end of the first driving shaft away from the handle. The end of the first driving shaft away from the handle is threadedly connected to the first half base. The first driving shaft penetrates through the second half base and is connected to the first half base.

[0012] Furthermore, the first half base and the second half base have the same structure. The first half base and the second half base are symmetrically provided with third rotating shaft holes on both sides of the threaded hole and the first rotating shaft hole respectively. The third rotating shaft holes are respectively located on the adjacent side walls of the first half base and the second half base. A limiting rod is installed in the third rotating shaft hole, and blocking blocks are respectively provided at both ends of the limiting rod. The blocking blocks are located in the third rotating shaft hole. The ends of the third rotating shaft holes of the first half base and the second half base extend outwards with protrusions, and the blocking blocks are clamped on the protrusions.

[0013] Furthermore, the middle parts of the first half base and the second half base are of hollow structure. The first group of measurement components are installed in the hollow structure of the first half base, and the second group of measurement components are installed in the hollow structure of the second half base. Arc-shaped notches are respectively provided at the symmetric corners on the side of the first half base away from the second half base. The second half base is provided with arc-shaped openings symmetrically arranged with the first half base. Openings are respectively provided on the sides of the first half base and the second half base away from the notches. The first seat moving seat and the second group of measurement components are attached through the openings.

[0014] Furthermore, second driving shaft holes are respectively provided on the side walls of the first half base and the second half base. Second threaded holes corresponding to the second driving shaft holes are respectively provided on the first group of measurement components and the second group of measurement components. A second driving shaft is installed in the second driving shaft hole. One end of the second driving shaft penetrates through the side walls of the first half base and the second half base and extends out a rotating handle. The other end of the second driving shaft penetrates through one side wall of the first half base and the second half base and is rotatably connected to the other side wall. Threads are provided on the second driving shaft. The first moving seat and the second moving seat are installed on the second driving shaft.

[0015] Furthermore, the first group of measurement components and the second group of measurement components have the same structure. The first group of measurement components and the second group of measurement components respectively include a first moving seat and a second moving seat. Threaded holes are respectively provided on the first moving seat and the second moving seat. There are two threads on the second driving shaft, and the two threads are opposite threads. The threaded hole of the first moving seat is threaded with the thread at the end of the second driving shaft close to the rotating handle, and the threaded hole of the second moving seat is threaded with the thread at the end away from the rotating handle.

[0016] Furthermore, the internal structures of the first moving seat and the second moving seat are the same. Each moving seat is provided with a hollow structure. A pressure sensor installation groove is provided in the hollow structure. A pressure sensor is installed in the pressure sensor installation groove. Springs are installed in the hollow structure of the moving seat. There are multiple springs, which are evenly installed around the pressure sensor installation groove. A retaining edge is provided on the inner wall of the moving seat. A load-carrying plate is installed in the moving seat. One end of the spring is fixed to the bottom of the load-carrying plate, the pressure sensor presses against the bottom of the load-carrying plate, and the top end of the load-carrying plate fits against the bottom end face of the retaining edge.

[0017] Compared with the prior art, the intelligent monitoring system for vehicle road simulation test of the present invention has the following advantages:

[0018] (1) The intelligent monitoring system for vehicle road simulation test of the present invention can monitor the state of the vehicle under test in the road simulation test, pause the test immediately and give an alarm prompt when a fault occurs, effectively avoiding secondary damage to the vehicle under test by the faulty component and damage to the test bench, and also preventing damage to the vehicle under test due to reasons such as out-of-control of the test bench.

[0019] (2) The force sensor of the present invention can be adjusted according to the size of the actual vehicle model, which is convenient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0021] Figure 1 is a diagram of an intelligent monitoring system for vehicle road simulation test according to an embodiment of the present invention;

[0022] Figure 2 is a structural diagram of the force sensor according to an embodiment of the present invention;

[0023] Figure 3 is a diagram of the base according to an embodiment of the present invention;

[0024] Figure 4 is a partial cross-section of the moving seat according to an embodiment of the present invention Figure 1 ;

[0025] Figure 5 is a partial cross-section of the moving seat according to an embodiment of the present invention Figure 2 ;

[0026] Figure 6 is a partial cross-section of the base according to an embodiment of the present invention Figure 2 .

[0027] DESCRIPTION OF THE REFERENCE NUMERALS:

[0028] 1. Base; 2. First group of moving seats; 3. Second group of moving seats; 11. First half base; 12. Second half base; 13. First drive shaft; 14. Second rotating shaft hole; 15. Limiting rod; 21. First moving seat; 22. Second moving seat; 23. Second drive shaft; 111. Third rotating shaft hole; 211. Baffle; 212. Spring; 213. Pressure sensor mounting groove; 214. Pressure sensor; 215. Load plate. Detailed implementation manners

[0029] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0031] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0032] The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0033] As Figures 1 to 6 shown, an intelligent monitoring system for automotive road simulation tests includes a sensor assembly for detecting a vehicle, a controller for receiving the information transmitted by the sensor assembly, an industrial control computer for controlling the controller, and an execution assembly for receiving the commands issued by the controller.

[0034] As Figure 1 shown, the output end of the sensor assembly is connected to the receiving end of the controller, the output end of the controller is connected to the industrial control computer, the execution end of the controller is connected to the execution assembly, and the receiving end of the sensor is connected to the vehicle under test.

[0035] As Figure 1As shown, the sensor assembly includes a temperature sensor, a force sensor, a strain gauge, an inclination sensor, and an acceleration sensor. The output terminals of the temperature sensor, the force sensor, the strain gauge, the inclination sensor, and the acceleration sensor are respectively connected to the receiving end of the controller. The execution end of the controller is connected to the execution assembly. The output end of the controller is connected to the receiving end of the industrial control computer, and the control end of the industrial control computer is connected to the receiving end of the controller.

[0036] The controller is of SIEMENS brand, model S7-1200;

[0037] The force sensor can be of HBM brand, model C9C;

[0038] The strain gauge is of VPG-MM brand;

[0039] The inclination sensor is of Emerson brand, model LST;

[0040] [[ID=1 / 15]]The acceleration sensor is of ASC brand, model 5411N;

[0041] The industrial control computer is of ShuoHua brand, model IPC-610MB-25LDE;

[0042] The temperature sensor is a thermocouple, which can be an ordinary thermocouple or of FLUKE brand, model 80PK-1;

[0043] The alarm can be an ordinary alarm or of TL-ALARM brand, model LATA-505 series.

[0044] As Figure 1 shown, the execution assembly includes an alarm module and a control module. The receiving end of the alarm module is connected to the control end of the controller, and the receiving end of the control module is connected to the control end of the controller.

[0045] As Figures 2 to 6 shown, the force sensor includes a base 1 and a moving measurement assembly;

[0046] The mobile measurement component is installed on the base 1, and the base 1 includes a first half base 11 and a second half base 12. The first half base 11 and the second half base 12 are connected by a first driving device. The mobile measurement component includes a first group of measurement components 2 for measuring faults around the left tire of the vehicle and a second group of measurement components 3 for measuring faults around the right tire of the vehicle. Second driving devices are respectively installed on the first half base 11 and the second half base 12. The first group of measurement components 2 is installed on the second driving device of the first half base 11, and the second group of measurement components 3 is installed on the second driving device of the second half base 12. The size of the base and the vehicle tire in the left-right direction is adjusted by the first driving device, and the first group of measurement components and the second measurement components are driven in the front-back direction relative to the tire by the second driving device.

[0047] As Figure 3 and Figure 4 shown, a threaded hole is provided on the side wall of the first half base 11 near the bottom end, and a first rotating shaft hole is provided on the side wall of the second half base 12 near the bottom end. The first rotating shaft hole penetrates through the side wall of the second base, and the first rotating shaft hole corresponds to the threaded hole. The first driving device is a first driving shaft 13. The first driving shaft 13 is installed in the threaded hole and the first rotating shaft hole. One end of the first driving shaft 13 extending through the first rotating shaft hole is connected to a handle on one side of the second half base 12. The end of the first driving shaft 13 with the handle is installed in the first rotating shaft hole. The first driving shaft 13 is rotatably connected to the second half base 12. A thread is provided at the end of the first driving shaft 13 away from the handle. The end of the first driving shaft 13 away from the handle is threadedly connected to the first half base 11. The first driving shaft 13 passes through the second half base 12 and is connected to the first half base 11;

[0048] As Figure 1 and Figure 6 shown, the first half base 11 and the second half base 12 have the same structure. Third rotating shaft holes 111 are symmetrically provided on both sides of the threaded hole and the first rotating shaft hole on the first half base and the second half base. The third rotating shaft holes are respectively located on the side walls of the first half base 11 and the second half base 12 close to each other. A limiting rod 15 is installed in the third rotating shaft hole 11. Blocks 151 are respectively provided at both ends of the limiting rod 15. The blocks 151 are located in the third rotating shaft hole 111. Protrusions extend outward from the ends of the third rotating shaft holes 111 of the first half base 11 and the second half base 12. The blocks 151 are clamped on the protrusions; when the first driving shaft 13 drives the first half base 11 and the second half base 12, the limiting rod moves in the third shaft hole, realizing the limitation between the first half base and the second half base.

[0049] The middle of the first half base and the second half base is a hollow structure. The first set of measurement components 2 is installed in the hollow structure of the first half base 11, and the second set of measurement components 3 is installed in the hollow structure of the second half base 12. Arc-shaped notches are respectively provided at the symmetric corners on the side of the first half base 11 away from the second half base 12. The second half base 12 is provided with arc-shaped openings symmetrically arranged with the first half base 11. Openings are respectively provided on the sides of the first half base 11 and the second half base 12 away from the notches. The first seat moving seat is in contact with the second set of measurement components 3 through the openings.

[0050] Second drive shaft 23 holes are respectively provided on the side walls of the first half base 11 and the second half base 12. Second threaded holes corresponding to the second drive shaft 23 holes are respectively provided on the first set of measurement components 2 and the second set of measurement components 3. A second drive shaft 23 is installed in the second drive shaft 23 hole. One end of the second drive shaft 23 penetrates through the side walls of the first half base 11 and the second half base 12 and extends out a rotating handle. The other end of the second drive shaft 23 penetrates through one side wall of the first half base 11 and the second half base 12 and is rotatably connected to the other side wall. Threads are provided on the second drive shaft 23. The first moving seat 21 and the second moving seat 22 are installed on the second drive shaft 23.

[0051] The first set of measurement components 2 and the second set of measurement components 3 have the same structure. The first set of measurement components 2 and the second set of measurement components 3 respectively include a first moving seat 21 and a second moving seat 22. Threaded holes are respectively provided on the first moving seat 21 and the second moving seat 22. Two threads are provided on the second drive shaft 23, and the two threads are opposite threads. The threaded hole of the first moving seat 21 is connected to the thread near the rotating handle end of the second drive shaft 23, and the threaded hole of the second moving seat 22 is threadedly connected to the thread at the end away from the rotating handle; by driving the positions of the two bases and multiple moving seats through the first drive rotating shaft and two sets of second drive rotating shafts, the problem of adjusting according to the size of the vehicle model is realized.

[0052] As Figure 4 and Figure 5 shown, the internal structures of the first moving seat 21 and the second moving seat 22 are the same. Each moving seat is provided with a hollow structure. A pressure sensor installation groove 213 is provided in the hollow structure. A pressure sensor 214 is installed in the pressure sensor installation groove 213. Springs 212 are installed in the hollow structure of the moving seat. A plurality of springs 212 are evenly installed around the pressure sensor installation groove 213. A retaining edge 211 is provided on the inner wall of the moving seat. A load-carrying plate 215 is installed in the moving seat. One end of the spring 212 is fixed to the bottom of the load-carrying plate 215, the pressure sensor 214 abuts against the bottom of the load-carrying plate 215, and the top end of the load-carrying plate 215 is in contact with the bottom end face of the retaining edge 211;

[0053] When a part drops, it falls onto the load plate. The load plate is a plate with a very small weight, and the bottom of the load plate is in direct contact with the pressure sensor. When the part cannot drop directly above the pressure sensor of the load plate, the spring will play a buffering role, and the inclination of the load plate will also squeeze the pressure sensor to obtain an accurate result;

[0054] In the above introduction, the drive shaft can be a hydraulic rod, a common threaded rod, or a telescopic rod.

[0055] The specific operation process of the system is as follows:

[0056] Paste the strain gauges on the important vulnerable parts of the vehicle to be measured, such as suspension links, body tower seat welds, etc. The specific positions are determined by the CAE fatigue simulation results or the experience of test engineers, and the feedback signals are input into the controller.

[0057] Install the temperature sensors on each shock absorber of the vehicle to be measured. Note that the installation position of the temperature sensor should be as far away from the cooling position of the shock absorber as possible to ensure the accuracy of temperature measurement, and input the feedback signals into the controller; install the acceleration sensors on the body or the axle head, and the number is determined according to the actual situation. If installed on the body, the installation position should be as close as possible to the installation point on the shock absorber, and input the feedback signals into the controller; install the inclination sensor in the middle of the vehicle body floor, as close as possible to the center of mass of the whole vehicle, and input the feedback signals into the controller; install a thin steel plate of appropriate size on the force sensor, place it on the ground, and input the feedback signals into the controller; the output channel of the controller is connected to the buzzer alarm and the test bench. The industrial computer can edit the control program of the controller and display the feedback signals of each channel at the same time.

[0058] The strain gauges are used to monitor the states of each vulnerable part. If the strain signals of these parts are abnormal, it indicates that the part or the parts related to it have deformed, cracked or broken. The controller will identify the signal abnormality and send an electrical signal to the buzzer alarm to give an alarm, and send an electrical signal to the test bench to pause the test.

[0059] The temperature sensors are used to monitor the temperature of the shock absorbers. If the temperature of the shock absorbers is too high for a long time, it will cause damage to the shock absorbers. Therefore, when the temperature of the shock absorbers is too high, the controller will send an electrical signal to trigger the buzzer alarm to give an alarm, and at the same time send an electrical signal to the test bench to pause the test. During the test pause, the shock absorber cooling device should continuously cool the shock absorbers, and at the same time, it should be checked whether the over-temperature of the shock absorbers is caused by the damage of the shock absorber cooling device or the insufficient efficiency of the cooling device. For new energy vehicle models, temperature sensors can be installed on the power battery to monitor the temperature of the power battery to prevent the power battery from being damaged and catching fire during the test.

[0060] The acceleration sensor is used to monitor the instantaneous state of the vehicle under test during bench operation. Its function is similar to that of the strain gauge, except that the strain gauge monitoring focuses on key components, while the acceleration sensor monitoring focuses on the entire vehicle. The combined use of the two can enhance the sensitivity of the system to monitor the vehicle under test.

[0061] The inclination sensor is used to monitor the overall inclination of the vehicle under test. During stable operation of the test, the inclination will be controlled within a certain range. If the test bench suddenly gets out of control, it is possible that a certain actuator will extend uncontrollably. For a wheel-coupled road simulation test bench, it may overturn the vehicle under test off the bench, and for an axle-coupled road simulation test bench, it may cause damage to the body of the vehicle under test. When the feedback value of the inclination sensor is abnormal, the controller will quickly suspend the test to prevent the out-of-control test bench from causing significant damage to the vehicle under test.

[0062] After installing the steel plate for the force sensor, it is placed under the vehicle. If fasteners such as bolts fall from the vehicle, they will exert a force on the steel plate. When the controller recognizes an abnormal signal from the force sensor, it will suspend the test, and the test engineer will check whether the fallen object affects the continuation of the test. It should be noted that the selected range and sensitivity of the force sensor need to be appropriate. Excessive range and too low sensitivity will make it difficult to identify signals.

[0063] The function of the industrial control computer is to edit the control program and send it to the controller. At the same time, the controller will communicate with the industrial control computer in real time, and transmit the signals feedback by the sensors to the industrial control computer for display and storage.

[0064] The controller needs to write a reasonable control program to monitor the state of the vehicle under test. In general, automotive road simulation tests use various different road surface excitations as inputs and repeat a specific number of times to achieve the test objectives. The controller collects the data of the first cycle as the target signal during test operation, and then compares the data of subsequent cycles with the first signal. The comparison methods include the maximum and minimum values, average values, amplitude distributions, damage values, time-domain repeatability, etc. of the feedback signals of each sensor. If the error between the two compared data is within the set threshold, the test is considered normal. If, after calculation and comparison, the error between the current data and the target signal exceeds the set threshold, it is considered that there is a problem with the test. The controller issues a command signal, the buzzer alarm sounds, and the test bench pauses. One or more methods can be selected for comparison according to the actual situation. The ultimate goal is to reduce the influence of measurement errors on the comparison results and increase the effectiveness of monitoring the state of the vehicle under test.

[0065] The specific usage process of the force sensor is as follows:

[0066] The first moving seat 21 and the second moving seat 22 are assembled in a group and installed on the base 1. By rotating the second drive shaft 23, the first moving seat 21 can be controlled to move on the first half base 111. It can be specifically adjusted according to the size of the vehicle model and the positions of the front and rear wheels. During the adjustment process, due to the limitation of the limit rod, the first half base 11 and the second half base 12 will not shift. By driving the distance between the first half base 111 and the second half base 121 through the first drive shaft 13, the width of the base 1 can be adjusted according to the distance between the front wheels or the rear wheels of the vehicle model. Corresponding to the part to be measured of the wheel, one end of the first drive wheel is rotatably connected to the second half base 121. The first drive shaft 13 rotates and a small bearing is installed inside the second half base 121. The installation method of the small bearing is connected by the prior art and will not be introduced in detail here. An annular groove is provided at one end of the first drive shaft 13 near the handle. The small bearing is installed in the annular groove to achieve limitation and prevent the axial movement of the first drive shaft 13. The first half base 111 is threadedly connected to the first drive shaft 13. When the first drive shaft 13 is driven, the first half base 111 moves along with the rotation of the first drive wheel. During the movement, the limit rod 15 moves in the third shaft hole 11. A universal wheel with a self-locking function is installed at the bottom of the base 1 to achieve convenient movement and can be fixed after the adjustment is completed.

[0067] The first moving seat 21 and the second moving seat 22 are oppositely installed on the second drive shaft 23. Both ends of the second drive shaft 23 are installed on the base 1 and a small bearing is installed inside. Similarly, grooves are provided at both ends of the second drive shaft near the ends. The small bearing is installed in the grooves. The installation method of the small bearing is the prior art. The second drive shaft 23 only realizes the function of rotation. Opposite threads are provided on the second drive shaft 23, and the opposite threads of the second drive shaft 23 cannot be drawn in the figure and are the prior art and will not be introduced in detail here. The first moving seat 21 and the second moving seat 22 are oppositely installed on the second drive shaft 23. Driving the second drive shaft 23 can control the first moving seat 21 and the second moving seat 22 to move in opposite directions to achieve the adjustment of the moving seat.

[0068] This structure can be adjusted according to the size of the vehicle model. Universal wheels are installed at the bottom of the base 11. The universal wheels are self-locking universal wheels, which are prior art and not marked in the figure, so they will not be introduced in detail here. During measurement, the force sensor is directly pushed under the vehicle. The force sensor mainly measures whether parts fall around the tire and measures damage problems. The size of the moving seat corresponds to the size of the part-mounted area around the tire, and the test can be completed. When parts fall, they fall onto the loading plate 215. The loading plate 215 is a very light board. The bottom of the loading plate 215 is directly in contact with the pressure sensor 214. When the part cannot fall directly above the pressure sensor 214 on the loading plate 215, the spring 212 will play a buffering role. The inclination of the loading plate 215 also squeezes the pressure sensor 214 to obtain accurate results.

[0069] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. An intelligent monitoring system for automobile road simulation test, characterized in that: It includes a sensor assembly for detecting a vehicle, a controller for receiving the information transmitted by the sensor assembly, an industrial control computer for controlling the controller, and an execution assembly for receiving the commands issued by the controller; The output end of the sensor assembly is connected to the receiving end of the controller, the output end of the controller is connected to the industrial control computer, the execution end of the controller is connected to the execution assembly, and the receiving end of the sensor is connected to the vehicle to be measured; The sensor assembly includes a temperature sensor, a force sensor, a strain gauge, an inclination sensor, and an acceleration sensor. The output ends of the temperature sensor, the force sensor, the strain gauge, the inclination sensor, and the acceleration sensor are respectively connected to the receiving end of the controller. The execution end of the controller is connected to the execution assembly, the output end of the controller is connected to the receiving end of the industrial control computer, and the control end of the industrial control computer is connected to the receiving end of the controller. The execution assembly includes an alarm module and a control module. The receiving end of the alarm module is connected to the control end of the controller, and the receiving end of the control module is connected to the control end of the controller. The force sensor includes a base (1) and a moving measurement assembly; The moving measurement assembly is installed on the base (1). The base (1) includes a first half base (11) and a second half base (12). The first half base (11) and the second half base (12) are connected by a first driving device. The moving measurement assembly includes a first set of measurement components (2) for measuring faults around the left tire of the vehicle and a second set of measurement components (3) for measuring faults around the right tire of the vehicle. Second driving devices are respectively installed on the first half base (11) and the second half base (12). The first set of measurement components (2) is installed on the second driving device of the first half base (11), and the second set of measurement components (3) is installed on the second driving device of the second half base (12); Adjust the left and right sizes of the base and the vehicle tire through the first driving device, and drive the first set of measurement components and the second measurement components to adjust the front and rear sizes with the tire through the second driving device; During measurement, directly push the force sensor under the vehicle to use the force sensor to measure whether parts have fallen around the tire.

2. The intelligent monitoring system for automotive road simulation tests according to claim 1, characterized in that: A threaded hole is provided on the side wall near the bottom end of the first half base (11), and a first rotating shaft hole is provided on the side wall near the bottom end of the second half base (12). The first rotating shaft hole penetrates through the side wall of the second base, and the first rotating shaft hole corresponds to the threaded hole. The first driving device is a first driving shaft (13). The first driving shaft (13) is installed in the threaded hole and the first rotating shaft hole. One end of the first driving shaft (13) extending through the first rotating shaft hole is connected to a handle on one side of the second half base (12). The end of the first driving shaft (13) with the handle is installed in the first rotating shaft hole. The first driving shaft (13) is rotatably connected to the second half base (12). The end of the first driving shaft (13) away from the handle is provided with a thread. The end of the first driving shaft (13) away from the handle is threadedly connected to the first half base (11). The first driving shaft (13) penetrates through the second half base (12) and is connected to the first half base (11).

3. An intelligent monitoring system for automotive road simulation tests according to claim 1, characterized in that: The first half base (11) and the second half base (12) have the same structure. On both sides of the threaded hole and the first rotating shaft hole, the first half base and the second half base are symmetrically provided with third rotating shaft holes (111) respectively. The third rotating shaft holes are respectively located on the adjacent side walls of the first half base (11) and the second half base (12). A limiting rod (15) is installed in the third rotating shaft hole (11). Blocks (151) are respectively provided at both ends of the limiting rod (15). The blocks (151) are located in the third rotating shaft hole (111). At the ends of the third rotating shaft holes (111) of the first half base (11) and the second half base (12), there are protrusions extending outwards. The blocks (151) are clamped on the protrusions.

4. An intelligent monitoring system for automotive road simulation tests according to claim 1, characterized in that: The middle of the first half base and the second half base is a hollow structure. The first set of measuring components (2) is installed in the hollow structure of the first half base (11), and the second set of measuring components (3) is installed in the hollow structure of the second half base (12). Arc-shaped notches are respectively provided at the symmetrical corners on the side of the first half base (11) away from the second half base (12). The second half base (12) is provided with an arc-shaped opening symmetrically arranged with the first half base (11). Openings are respectively provided on the sides of the first half base (11) and the second half base (12) away from the notches.

5. An intelligent monitoring system for automotive road simulation tests according to claim 1, characterized in that: The second driving device is a second driving shaft. Second driving shaft holes are respectively provided on the side walls of the first half base (11) and the second half base (12). Second threaded holes corresponding to the holes of the second driving shaft (23) are respectively provided on the first set of measuring components (2) and the second set of measuring components (3). A second driving shaft (23) is installed in the second driving shaft hole (23). One end of the second driving shaft (23) penetrates through the side walls of the first half base (11) and the second half base (12) to extend out a rotating handle. The other end of the second driving shaft (23) penetrates through one side wall of the first half base (11) and the second half base (12) and is rotatably connected to the other side wall. Threads are provided on the second driving shaft (23).

6. The intelligent monitoring system for automotive road simulation test according to claim 5, wherein: The first set of measuring components (2) and the second set of measuring components (3) have the same structure. The first set of measuring components (2) and the second set of measuring components (3) respectively include a first moving seat (21) and a second moving seat (22). Threaded holes are respectively provided on the first moving seat (21) and the second moving seat (22). There are two threads on the second driving shaft (23), and the two threads are opposite threads. The threaded hole of the first moving seat (21) is threadedly connected to the thread at the end of the second driving shaft (23) close to the rotating handle, and the threaded hole of the second moving seat (22) is threadedly connected to the thread at the end of the second driving shaft (23) away from the rotating handle.

7. An intelligent monitoring system for automotive road simulation tests according to claim 6, characterized in that: The internal structures of the first moving seat (21) and the second moving seat (22) are the same. Each moving seat is provided with a hollow structure. Inside the hollow structure, there is a pressure sensor mounting groove (213). A pressure sensor (214) is installed in the pressure sensor mounting groove (213). A spring (212) is installed inside the hollow structure of the moving seat. There are multiple springs (212), which are evenly installed around the pressure sensor mounting groove (213). A retaining edge (211) is provided on the inner wall of the moving seat. A load-carrying plate (215) is installed inside the moving seat. One end of the spring (212) is fixed to the bottom of the load-carrying plate (215), and the pressure sensor (214) abuts against the bottom of the load-carrying plate (215). The top end of the load-carrying plate (215) fits against the bottom end face of the retaining edge (211).

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