Fuel oil domain controller testing device
By simulating the electrical environment of the fuel domain controller using the simulation module within the integrated load box, the problem of building a real electrical environment was solved, resulting in a high-efficiency, low-cost testing device that improves experimental efficiency and accuracy.
Patent Information
- Application Number
- CN202520125512.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-01-17
AI Technical Summary
Setting up a realistic electrical environment is difficult in environmental and durability testing of fuel domain controllers, especially when large sensors and actuators are involved, resulting in high experimental complexity and low efficiency and accuracy.
A fuel domain controller test device is provided, which simulates active sensors, passive sensors, solenoid valves and three-phase motors by integrating a simulation module in the load box. This simplifies the structure of the test device, reduces physical equipment, facilitates manufacturing and processing by utilizing circuit simulation technology, and allows for flexible adjustment of electrical environment parameters.
It achieves efficient electrical environment simulation without the need for a large number of real devices, reduces costs, improves testing flexibility and controllability, and enhances controller production efficiency and experimental accuracy.
Smart Images
Figure CN223624546U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of controller testing technology, and in particular to a fuel domain controller testing device. Background Technology
[0002] When conducting environmental and durability tests on fuel domain controllers, ensuring the electrical environment required for their proper operation is crucial. The electrical environment includes various loads, communication devices, and the hardwired connections between them.
[0003] However, it is difficult to build a realistic electrical environment in the laboratory, especially when the electrical environment includes large electrical devices such as sensors and actuators.
[0004] When conducting synchronization experiments with multiple domain controllers, the electrical environment is highly complex. Therefore, there is an urgent need to develop technologies that can effectively simulate the aforementioned electrical environment in order to improve experimental efficiency and accuracy. Utility Model Content
[0005] This application provides a fuel domain controller testing device that can simulate the electrical environment of the fuel domain controller without building actual electrical equipment.
[0006] To achieve the above objectives, this application provides the following technical solution:
[0007] This application provides a fuel domain controller testing device, which includes:
[0008] Load bank;
[0009] A first simulation module is disposed inside the load box, and the first simulation module is used to simulate an active sensor;
[0010] The second simulation module is located inside the load box and is used to simulate a passive sensor.
[0011] The third simulation module is located inside the load box and is used to simulate a solenoid valve.
[0012] The fourth simulation module is located inside the load box and is used to simulate a three-phase motor.
[0013] In one possible implementation, the first analog module includes a first analog circuit having a power transmission terminal, an output terminal, and a ground terminal. The power transmission terminal is used to electrically connect to a low-voltage power supply, and the output terminal is used to electrically connect to the controller under test to output an analog signal simulating an active sensor.
[0014] In one possible implementation, the first analog circuit includes a first branch and a second branch, the first branch being connected in parallel with the second branch, the first branch including a first capacitor, the second branch having the power transmission terminal, the output terminal and the ground terminal, the second branch including a first potentiometer and a second capacitor, the first potentiometer having an upper end and a lower end connected in series, the lower end being connected in parallel with the second capacitor.
[0015] In one possible implementation, the first analog circuit is configured as at least two, wherein the capacitance values of the first capacitors in the two first analog circuits are different, and / or, the capacitance values of the second capacitors in the two first analog circuits are different.
[0016] In one possible implementation, the second analog module includes a second analog circuit, one end of which is electrically connected to the controller under test to output an analog signal simulating a passive sensor, and the other end of which is grounded. The second analog circuit includes a second potentiometer and a third capacitor connected in parallel.
[0017] In one possible implementation, the second analog circuit is configured as at least two.
[0018] In one possible implementation, the third analog module includes a third analog circuit, the input of which is connected to the main power supply, and the output of which is electrically connected to the controller under test to output an analog signal of the analog solenoid valve.
[0019] In one possible implementation, the third analog circuit includes a third branch, a fourth branch, and a fifth branch connected in parallel. The third branch includes a first inductor and a first fixed resistor connected in series. The fourth branch includes a matching resistor and a fourth capacitor connected in series. A unidirectional diode is connected in parallel with the fourth capacitor. The fifth branch includes a fifth capacitor.
[0020] In one possible implementation, the third analog circuit is configured as at least two, wherein the inductance values of the first inductors in the two third analog circuits are different, and / or, the resistance values of the first fixed resistors in the two third analog circuits are different.
[0021] In one possible implementation, the fourth analog module includes a fourth analog circuit, which includes a sixth branch, a seventh branch, and an eighth branch connected in parallel. The sixth branch, the seventh branch, and the eighth branch each have a U-phase output terminal, a V-phase output terminal, and a W-phase output terminal with different phases. The sixth branch, the seventh branch, and the eighth branch each include a second inductor and a sixth resistor connected in series.
[0022] The fuel domain controller testing device provided in this application has at least the following beneficial effects:
[0023] By integrating multiple simulation modules into a single load cell, the test device structure is simplified, eliminating the need for numerous real sensors and actuators. This reduces the number and complexity of components. Furthermore, the circuit simulation technology within the test device facilitates manufacturing and processing, resulting in lower production costs. The test device enables efficient verification of controller quality, improving controller production efficiency. The parameters of components in the simulation circuit can be adjusted as needed to control the electrical environment, enhancing the flexibility and controllability of controller testing. This effectively solves the problem of complex and large electrical environments in existing domain controller testing technologies, providing an effective approach for the efficient execution of project tests. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 Internal circuit diagram of the fuel domain controller test device provided in the embodiments of this application;
[0026] Figure 2 This is a schematic diagram of the panel structure of the fuel domain controller test device provided in the embodiments of this application;
[0027] Figure 3 for Figure 2 A magnified structural diagram of region 1 in the middle;
[0028] Figure 4 for Figure 3 A diagram showing the Chinese meanings of the symbols in the diagram.
[0029] Explanation of reference numerals in the attached figures:
[0030] 100. Load bank; 110. First analog module; 111. First analog circuit; 1111. First potentiometer; 1112. First capacitor; 1113. Second capacitor; 120. Second analog module; 121. Second analog circuit; 1211. Second potentiometer; 1212. Third capacitor; 130. Third analog module; 131. Third analog circuit; 1311. First inductor; 1312. First fixed resistor; 1313. Matching resistor; 1314. Fourth capacitor; 1315. Unidirectional diode; 1316. Fifth capacitor; 140. Fourth analog module; 141. Fourth analog circuit; 1411. Second inductor; 1412. Sixth resistor; 1413. Bidirectional light-emitting diode; 1414. Protection resistor.
[0031] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation
[0032] As described in the background section, ensuring the necessary electrical environment for the proper functioning of a fuel domain controller is crucial when conducting environmental and durability tests. This electrical environment includes various loads, communication devices, and the hardwired connections between them. However, recreating a realistic electrical environment in a laboratory is challenging, especially when the environment includes large electrical components such as sensors and actuators.
[0033] When conducting synchronization experiments with multiple domain controllers, the electrical environment is highly complex. Therefore, there is an urgent need to develop technologies that can effectively simulate the aforementioned electrical environment in order to improve experimental efficiency and accuracy.
[0034] To address the aforementioned technical problems, this application provides a fuel domain controller testing device. By integrating multiple simulation modules into a single load cell, the device structure is simplified, eliminating the need for numerous real sensors and actuators, thus reducing the number and complexity of components. Furthermore, the circuit simulation technology within the testing device facilitates manufacturing and processing, resulting in lower production costs. This testing device enables efficient verification of controller quality, improving controller production efficiency. The parameters of components in the simulation circuit can be adjusted as needed to control the electrical environment, enhancing the flexibility and controllability of controller testing. This effectively solves the problem of complex and large electrical environments in existing domain controller testing processes, providing an effective approach for the efficient execution of project tests.
[0035] To make the above-mentioned objectives, features, and advantages of the embodiments of this application more apparent and understandable, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0036] Combination Figures 1 to 3 The fuel domain controller test device provided in this application includes a load box 100. The load box 100 is provided with a first simulation module 110, a second simulation module 120, a third simulation module 130 and a fourth simulation module 140. The first simulation module 110 is used to simulate an active sensor, the second simulation module 120 is used to simulate a passive sensor, the third simulation module 130 is used to simulate a solenoid valve and the fourth simulation module 140 is used to simulate a three-phase motor.
[0037] This setup, by integrating multiple simulation modules into a single load cell 100, simplifies the test device structure, eliminating the need for numerous real sensors and actuators. This reduces the number and complexity of components. Furthermore, the circuit simulation technology within the test device facilitates manufacturing and processing, resulting in lower production costs. The test device allows for efficient verification of controller quality, improving controller production efficiency. The parameters of components in the simulation circuit can be adjusted as needed to control the electrical environment, enhancing the flexibility and controllability of controller testing. This effectively solves the problem of complex and large electrical environments in existing domain controller testing technologies, providing an effective approach for the efficient execution of project tests.
[0038] In some embodiments, the first analog module 110 includes a first analog circuit 111, which has a power transmission terminal, an output terminal, and a ground terminal. The power transmission terminal is used to electrically connect to a low-voltage power supply, and the output terminal is used to electrically connect to the controller under test to output an analog signal simulating an active sensor.
[0039] For example, the low-voltage power supply of the first analog circuit 111 is a 5V power supply, and the power transmission terminal is used to electrically connect to the positive terminal of the 5V power supply. The panel of the load box 100 has interfaces for connecting to the power transmission terminal, the output terminal and the ground terminal. During testing, the fuel domain controller under test is connected to the interface of the output terminal through a wire, so that the first analog module 110 realizes the circuit simulation of the active sensor, and the domain controller can be functionally tested without setting up a physical sensor.
[0040] In some embodiments, the first analog circuit includes a first branch and a second branch, which are connected in parallel. The first branch includes a first capacitor 1112, and the second branch has a power transmission terminal, an output terminal, and a ground terminal. The second branch includes a first potentiometer 1111 and a second capacitor 1113. The first potentiometer 1111 has an upper end and a lower end connected in series, and the lower end is connected in parallel with the second capacitor 1113. For example, the resistance value of the first potentiometer 1111 is in the range of 250Ω-500Ω. In this way, by adjusting the resistance value of the first potentiometer 1111, the amplitude or voltage of the output signal can be changed to simulate different sensor readings.
[0041] In some embodiments, at least two first analog circuits 111 are configured, with different values for the first capacitors 1112 in the two first analog circuits 111, and / or different values for the second capacitors 1113 in the two first analog circuits 111. For example, three first analog circuits 111 are configured, with the first capacitors 1112 of the three first analog circuits having values of 430nF, 32nF, and 70nF, respectively, and the second capacitors 1113 of the three first analog circuits having values of 360nF, 28nF, and 64nF, respectively. By configuring analog circuits with capacitors of different values, different capacitance values will affect the signal characteristics of the circuit, such as frequency response and phase change. By adjusting the capacitance values, the signal output of the sensor under different states can be simulated, thereby testing the domain controller's ability to recognize and process these signals. Furthermore, by simulating sensors with different capacitance values, the operating state of the domain controller under different sensor performance conditions can be tested, including signal stability, accuracy, and the adaptability of the domain controller.
[0042] In some embodiments, the second analog module 120 includes a second analog circuit 121. One end of the second analog circuit 121 is electrically connected to the controller under test to output an analog signal simulating a passive sensor. The other end of the second analog circuit 121 is grounded. The second analog circuit 121 includes a second potentiometer 1211 and a third capacitor 1212 connected in parallel. For example, the second potentiometer 1211 has a capacitance of 100-250Ω, and the capacitance of the third capacitor 1212 is 12nF.
[0043] In some embodiments, at least two second analog circuits 121 are provided. For example, two second analog circuits 121 are provided to be able to simulate different types of passive sensors and expand the testing range of the testing device.
[0044] In some embodiments, the third analog module 130 includes a third analog circuit 131. The input terminal of the third analog circuit 131 is used to connect to the main power supply. For example, the panel of the load box 100 is provided with a main power supply input terminal and a ground terminal. The input terminal of the third analog circuit 131 is electrically connected to the main power supply input terminal. The output terminal of the third analog circuit 131 is used to connect to the controller under test to output the analog signal of the analog solenoid valve.
[0045] In some embodiments, the third analog circuit 131 includes a third branch, a fourth branch, and a fifth branch connected in parallel. The third branch includes a first inductor 1311 and a first fixed resistor 1312 connected in series. The fourth branch includes a matching resistor 1313 and a fourth capacitor 1314 connected in series. A unidirectional diode 1315 is connected in parallel with the fourth capacitor. The fifth branch includes a fifth capacitor 1316.
[0046] In this way, by connecting the first fixed resistor 1312 and the first inductor 1311 in series, an equivalent circuit can be constructed to simulate the electrical characteristics of the solenoid valve. By adjusting the values of the resistor and the inductor, solenoid valve actuators of different specifications and types can be simulated.
[0047] The unidirectional diode 1315 serves as an indicator of the operating status of the third analog circuit 131. Furthermore, the matching resistor 1313 can absorb excess current in the event of circuit anomalies, such as a sudden voltage increase, thereby protecting the unidirectional diode 1315 from burning out. At the same time, in the event of power supply voltage fluctuations or changes in the characteristics of the unidirectional diode 1315, the series matching resistor 1313 helps to maintain a stable current through the unidirectional diode 1315. In turn, by limiting the current, the series resistor helps to extend the lifespan of the diode.
[0048] In some embodiments, at least two third analog circuits 131 are configured, the inductance values of the first inductors 1311 in the two third analog circuits 131 are different, and / or the resistance values of the first fixed resistors 1312 in the two third analog circuits 131 are different. For example, five third analog circuits 131 are configured, the inductance values of the five first inductors 1311 are 70mH, 70mH, 2mH, 43mH and 70mH respectively, and the resistance values of the five first fixed resistors 1312 are 25Ω, 25Ω, 16Ω, 27Ω and 15Ω respectively.
[0049] In some embodiments, the fourth analog module 140 includes a fourth analog circuit 141, which includes a sixth branch, a seventh branch, and an eighth branch connected in parallel. The sixth branch, the seventh branch, and the eighth branch each have a U-phase output terminal, a V-phase output terminal, and a W-phase output terminal with different phases. The sixth branch, the seventh branch, and the eighth branch each include a second inductor 1411 and a sixth resistor 1412 connected in series. For example, the inductance value of the second inductor 1411 is 60μH, and the capacitance value of the sixth resistor 1412 is 90mH.
[0050] Thus, by setting up the fourth simulation module 140, this test device reduces its reliance on actual equipment, such as a three-phase motor, and can perform three-phase motor simulation tests on the controller, thereby reducing testing and development costs. It can also quickly adjust circuit parameters to simulate different actuator characteristics.
[0051] Furthermore, the fourth analog circuit 141 is surrounded by a shielding box to prevent external electromagnetic interference, thereby ensuring the accuracy of its analog signal simulation of a three-phase motor.
[0052] Furthermore, the fourth analog circuit 141 also includes a ninth branch, which is connected in parallel with the eighth branch. The ninth branch includes a protective resistor and a bidirectional light-emitting diode 1413 connected in series. The resistance of the protective resistor can be 10Ω, and the bidirectional light-emitting diode 1413 is a non-polar LED. In this way, it can act as an indicator for the working status of the sixth, seventh, and eighth branches. The setting of the protective resistor can limit the current through the LED to prevent excessive current from damaging the LED. The protective resistor can also share part of the voltage to ensure that the voltage on the bidirectional light-emitting diode 1413 does not exceed its maximum rated value.
[0053] The testing device provided in this application embodiment is a highly integrated system of multiple electrical environments, which simplifies the setup of the test bench during the domain controller experiment and facilitates the operation and management of the domain controller environment / endurance experiment.
[0054] Combination Figure 2 and Figure 3 The diagram shows the panel structure of the testing device. It can be seen that the device includes four independent loads, and all four loads have identical structures. Figure 3 Examples are given Figure 2 The enlarged view of Zone 1 shows that the load box is equipped with a cooling fan and has ventilation holes on the side wall to dissipate heat from the analog modules inside. The load box also has a main switch to control the power supply.
[0055] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0056] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0057] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0058] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0059] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.
[0060] It should be noted that the embodiments referred to in the specification, such as "one embodiment," "embodiment," "exemplary embodiment," and "some embodiments," may include specific features, structures, or characteristics, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.
[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A fuel domain controller testing device, characterized in that, include: Load cell; A first simulation module is disposed inside the load box, and the first simulation module is used to simulate an active sensor; The second simulation module is located inside the load box and is used to simulate a passive sensor. The third simulation module is located inside the load box and is used to simulate a solenoid valve. The fourth simulation module is located inside the load box and is used to simulate a three-phase motor.
2. The testing apparatus according to claim 1, characterized in that, The first analog module includes a first analog circuit, which has a power transmission terminal, an output terminal, and a ground terminal. The power transmission terminal is used to electrically connect to a low-voltage power supply, and the output terminal is used to electrically connect to the controller under test to output an analog signal simulating an active sensor.
3. The testing apparatus according to claim 2, characterized in that, The first analog circuit includes a first branch and a second branch, the first branch and the second branch are connected in parallel, the first branch includes a first capacitor, the second branch has the power transmission terminal, the output terminal and the ground terminal, the second branch includes a first potentiometer and a second capacitor, the first potentiometer has an upper end and a lower end connected in series, and the lower end is connected in parallel with the second capacitor.
4. The testing apparatus according to claim 3, characterized in that, The first analog circuit is configured as at least two, wherein the capacitance values of the first capacitors in the two first analog circuits are different, and / or the capacitance values of the second capacitors in the two first analog circuits are different.
5. The testing apparatus according to any one of claims 1-4, characterized in that, The second analog module includes a second analog circuit. One end of the second analog circuit is used to be electrically connected to the controller under test to output an analog signal simulating a passive sensor. The other end of the second analog circuit is used to ground. The second analog circuit includes a second potentiometer and a third capacitor connected in parallel.
6. The testing apparatus according to claim 5, characterized in that, The second analog circuit is configured to have at least two.
7. The testing apparatus according to any one of claims 1-4, characterized in that, The third analog module includes a third analog circuit. The input terminal of the third analog circuit is used to connect to the main power supply, and the output terminal of the third analog circuit is used to electrically connect to the controller under test to output an analog signal of the analog solenoid valve.
8. The testing apparatus according to claim 7, characterized in that, The third analog circuit includes a third branch, a fourth branch, and a fifth branch connected in parallel. The third branch includes a first inductor and a first fixed resistor connected in series. The fourth branch includes a matching resistor and a fourth capacitor connected in series. A unidirectional diode is connected in parallel with the fourth capacitor. The fifth branch includes a fifth capacitor.
9. The testing apparatus according to claim 8, characterized in that, The third analog circuit is configured as at least two, wherein the inductance values of the first inductors in the two third analog circuits are different, and / or the resistance values of the first fixed resistors in the two third analog circuits are different.
10. The testing apparatus according to any one of claims 1-4, characterized in that, The fourth analog module includes a fourth analog circuit, which includes a sixth branch, a seventh branch, and an eighth branch connected in parallel. The sixth branch, the seventh branch, and the eighth branch each have a U-phase output terminal, a V-phase output terminal, and a W-phase output terminal with different phases. The sixth branch, the seventh branch, and the eighth branch each include a second inductor and a sixth resistor connected in series.