Boost charging function testing device and method

Abstract

The embodiment of the invention provides a boost charging function testing device and method. The boost charging function testing device comprises a tested electric drive assembly, a whole vehicle state simulation assembly, a torque assembly, a detection assembly, a battery simulator and a charging pile simulator. The whole vehicle state simulation assembly provides a simulation whole vehicle gear engaging state for the tested electric drive assembly in a boost charging function stage. The battery simulator provides a power supply state for simulating a whole vehicle battery for the tested electric drive assembly, and the charging pile simulator provides a power supply state for simulating a charging pile for the tested electric drive assembly; the torque assembly collects a torque value of the tested electric drive assembly, and the detection assembly collects a vibration value and noise of the torque assembly so as to provide test data; different states of the whole vehicle are simulated for the boost charging function in the development stage, the electric drive assembly is tested based on the mechanical aspect and the control detection aspect, the development efficiency is improved, meanwhile, the mechanical connection mode is rapid and efficient, and use is easy and convenient.

Description

Technical Field

[0001] The present application relates to the technical field of electric drive assembly testing, and in particular to a boost charging function testing device and method. Background Art

[0002] The existing technical solutions mainly focus on the modular control method of the motor controller itself, such as through an input connector and one or more boost electrical components, one end of the input connector is used to be electrically connected to an external power source, and the other end is electrically connected to the electric drive assembly component of the vehicle electric drive assembly through the boost electrical component to form a boost circuit, the output end of the boost circuit is used to be electrically connected to the battery, the boost electrical component is accommodated in the drive assembly housing of the vehicle electric drive assembly, and the boost electrical component and the electric drive assembly component of the vehicle electric drive assembly form a boost circuit, so that the external power source connected to the input connector is boosted by the boost circuit to charge the battery. The existing technology lacks the mechanical aspects and control detection of the boost electrical component (electric drive assembly) test in the boost charging function development stage. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a boost charging function testing device and method, so as to simulate different states of the whole vehicle for the boost charging function during the development stage, conduct mechanical and control detection tests on the electric drive assembly, and improve development efficiency.

[0004] In a first aspect, an embodiment of the present application provides a boost charging function test device, comprising: an electric drive assembly to be tested, a vehicle state simulation component, a torque component, a detection component, a battery simulator and a charging pile simulator; the electric drive assembly to be tested is arranged on the vehicle state simulation component, and the electric drive assembly to be tested is connected to the torque component, the detection component, the battery simulator and the charging pile simulator;

[0005] The vehicle state simulation component provides the electric drive assembly under test with a simulated vehicle gear state in the boost charging function stage; the battery simulator provides the electric drive assembly under test with a simulated vehicle battery power supply state, and the charging pile simulator provides the electric drive assembly under test with a simulated charging pile power supply state; the torque value of the electric drive assembly under test is collected through the torque component, and the vibration value and noise of the torque component are collected through the detection component to provide test data.

[0006] In the above implementation process, the vehicle state simulation component is used to provide the electric drive assembly under test with a simulated vehicle gear state in the boost charging function stage; the battery simulator is used to provide the electric drive assembly under test with a simulated vehicle battery power supply state, and the charging pile simulator is used to provide the electric drive assembly under test with a simulated charging pile power supply state; the torque value of the electric drive assembly under test is collected through the torque component, and the vibration value and noise of the torque component are collected through the detection component to provide test data; the boost charging function is simulated in different states of the vehicle during the development stage, and the electric drive assembly is tested based on mechanical aspects and control detection aspects to improve development efficiency. At the same time, the mechanical connection method is fast, efficient and easy to use.

[0007] Furthermore, the torque assembly includes a first torque flange, a second torque flange, a first half-shaft and a second half-shaft, the first torque flange is connected to the reducer of the electric drive assembly under test through the first half-shaft, the second torque flange is connected to the reducer of the electric drive assembly under test through the second half-shaft, the first torque flange works in conjunction with the battery simulator, and the second torque flange works in conjunction with the charging pile simulator.

[0008] In the above implementation process, the torque of the electric drive assembly under test is detected respectively by the first torque flange and the second torque flange, so as to provide data for the development of the boost charging function.

[0009] Furthermore, the detection component includes a first vibration sensor, a second vibration sensor, a first noise sensor and a second noise sensor, the first vibration sensor and the first noise sensor cooperate with the battery simulator, and the second vibration sensor and the second noise sensor cooperate with the charging pile simulator.

[0010] In the above implementation process, the vibration value of the torque component is detected by the first vibration sensor and the second vibration sensor, and the noise of the torque component is detected by the first noise sensor and the second noise sensor, and test data is provided, so that the data can be continuously optimized when performing the boost charging function test, and the boost charging function development test can be completed more quickly and efficiently.

[0011] Furthermore, it also includes a first relay, a second relay, a first current sensor and a second current sensor, the first relay and the first current sensor are connected to the battery simulator, and the second relay and the second current sensor are connected to the charging pile simulator.

[0012] In the above implementation process, the first relay and the second relay are used to control the three-phase copper busbar to be disconnected and attracted, so as to meet the development and test of boost charging of different schemes; the first current sensor and the second current sensor are used to monitor the three-phase current of boost charging, and the boost charging is continuously optimized according to the real-time data.

[0013] Furthermore, the vehicle state simulation component includes a first suspension fixture and a second suspension fixture, the electric drive assembly under test is installed on the first suspension fixture and the second suspension fixture, and the first suspension fixture and the second suspension fixture are connected to the motor of the electric drive assembly under test.

[0014] In the above implementation process, the first suspension fixture and the second suspension fixture are used to simulate the fixation of the entire vehicle to achieve the installation of the electric drive assembly under test.

[0015] Furthermore, the whole vehicle state simulation component includes a first locked-rotor dynamometer and a second locked-rotor dynamometer, the first locked-rotor dynamometer is connected to the first half-shaft, and the second locked-rotor dynamometer is connected to the second half-shaft.

[0016] In the above implementation process, the first locked-rotor dynamometer and the second locked-rotor dynamometer are used to simulate tires to simulate the gear state of the entire vehicle, thereby meeting the test of the boost charging function under different conditions.

[0017] In a second aspect, an embodiment of the present application provides a boost charging function test method, which is applied to the boost charging function test device as described above, including:

[0018] Providing a simulated vehicle gear-engaging state in a boost charging function stage for the electric drive assembly under test through the vehicle state simulation component;

[0019] The battery simulator is used to provide the electric drive assembly under test with a simulated vehicle battery power supply state, and the charging pile simulator is used to provide the electric drive assembly under test with a simulated charging pile power supply state;

[0020] The torque value of the electric drive assembly under test is collected through the torque component, and the vibration value and noise of the torque component are collected through the detection component to provide test data.

[0021] Furthermore, providing the electric drive assembly under test with a simulated vehicle gear state in the boost charging function stage through the vehicle state simulation component includes:

[0022] Controlling the first locked-rotor dynamometer and the second locked-rotor dynamometer to lock the rotors to provide a simulated vehicle P gear state in a boost charging function stage for the electric drive assembly under test;

[0023] The first locked-rotor dynamometer and the second locked-rotor dynamometer are controlled to be unblocked to provide a simulated vehicle N gear state in the boost charging function stage for the electric drive assembly under test.

[0024] Further, collecting the torque value of the electric drive assembly under test through the torque component, and collecting the vibration value and noise of the torque component through the detection component, includes:

[0025] Under the power supply state of the battery simulator and in the boost charging function stage, the torque value generated by the tested electric drive assembly is collected through the first torque flange, the vibration value of the first torque flange is collected through the first vibration sensor, and the noise of the first torque flange is collected through the first noise sensor;

[0026] When the charging pile simulator is powered on and in the boost charging function stage, the torque value generated by the electric drive assembly under test is collected through the second torque flange, the vibration value of the second torque flange is collected through the second vibration sensor, and the noise of the second torque flange is collected through the second noise sensor.

[0027] Furthermore, it also includes:

[0028] Control the three-phase copper busbar of the battery simulator to disconnect and close through the first relay, and detect the three-phase current of the boost charging of the battery simulator through the first current sensor;

[0029] The three-phase copper busbar of the charging pile simulator is controlled to be disconnected and closed by the second relay, and the three-phase current of the boost charging of the charging pile simulator is detected by the second current sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a structural schematic diagram of a boost charging function test device provided in an embodiment of the present application;

[0032] Figure 2 It is a flowchart of a boost charging function testing method provided in an embodiment of the present application;

[0033] Figure 3 It is a structural schematic diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0035] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0036] Please see Figure 1 , Figure 1 A schematic diagram of the structure of a boost charging function test device provided in an embodiment of the present application. The boost charging function test device comprises: an electric drive assembly to be tested, a vehicle state simulation component, a torque component, a detection component, a battery simulator and a charging pile simulator; the electric drive assembly to be tested is arranged on the vehicle state simulation component, and the electric drive assembly to be tested is connected to the torque component, the detection component, the battery simulator and the charging pile simulator.

[0037] Among them, the whole vehicle state simulation component provides the electric drive assembly under test with a simulated whole vehicle gear state in the boost charging function stage; the battery simulator provides the electric drive assembly under test with a simulated whole vehicle battery power supply state, and the charging pile simulator provides the electric drive assembly under test with a simulated charging pile power supply state; the torque value of the electric drive assembly under test is collected through the torque component, and the vibration value and noise of the torque component are collected through the detection component to provide test data.

[0038] As described above, the embodiment of the present application provides the electric drive assembly under test with a simulated vehicle gear state in the boost charging function stage through the vehicle state simulation component; provides the electric drive assembly under test with a simulated vehicle battery power supply state through the battery simulator, and provides the electric drive assembly under test with a simulated charging pile power supply state through the charging pile simulator; collects the torque value of the electric drive assembly under test through the torque component, and collects the vibration value and noise of the torque component through the detection component to provide test data; realizes simulation of different states of the whole vehicle for the boost charging function in the development stage, and tests the electric drive assembly based on mechanical aspects and control detection aspects, thereby improving development efficiency, and at the same time, the mechanical connection method is fast, efficient and easy to use.

[0039] In some embodiments, the torque assembly includes a first torque flange, a second torque flange, a first half-shaft and a second half-shaft, the first torque flange is connected to the reducer of the electric drive assembly under test through the first half-shaft, the second torque flange is connected to the reducer of the electric drive assembly under test through the second half-shaft, the first torque flange cooperates with the battery simulator, and the second torque flange cooperates with the charging pile simulator; wherein, the torque value of the electric drive assembly under test when powered by the battery simulator is detected by the first torque flange, and the torque value of the electric drive assembly under test when powered by the charging pile simulator is detected by the second torque flange, so as to provide data for the development of the boost charging function.

[0040] It can be understood that the first torque flange is provided with a first torque sensor, and the second torque flange is provided with a second torque sensor, and the sensors can sense the torsional moment on the shaft and convert it into a measurable electrical signal.

[0041] In some embodiments, the detection component includes a first vibration sensor, a second vibration sensor, a first noise sensor and a second noise sensor, the first vibration sensor and the first noise sensor cooperate with the battery simulator, and the second vibration sensor and the second noise sensor cooperate with the charging pile simulator; wherein, the vibration value of the torque component is detected by the first vibration sensor and the second vibration sensor, and the noise of the torque component is detected by the first noise sensor and the second noise sensor, and test data is provided, so that the data is continuously optimized during the boost charging function test, and the boost charging function development test is completed more quickly and efficiently; it can be understood that the first vibration sensor and the first noise sensor detect the sensing values ​​when the battery simulator is powered, and the second vibration sensor and the second noise sensor detect the sensing values ​​when the charging pile simulator is powered.

[0042] In some embodiments, it also includes a first relay, a second relay, a first current sensor and a second current sensor, the first relay and the first current sensor are connected to the battery simulator, and the second relay and the second current sensor are connected to the charging pile simulator; wherein, the three-phase copper busbar is controlled to be disconnected and attracted by the first relay and the second relay to meet the development and test of boost charging of different schemes; the first current sensor and the second current sensor are used to monitor the three-phase current of boost charging, and the boost charging is continuously optimized according to real-time data; it can be understood that the first relay and the first current sensor detect the value of the battery simulator, and the second relay and the second current sensor detect the value of the charging pile simulator.

[0043] In some embodiments, the whole vehicle state simulation component includes a first suspension fixture and a second suspension fixture, the electric drive assembly under test is installed on the first suspension fixture and the second suspension fixture, and the first suspension fixture and the second suspension fixture are connected to the motor of the electric drive assembly under test; wherein, the first suspension fixture and the second suspension fixture are used to simulate the fixation of the whole vehicle to achieve the installation of the electric drive assembly under test.

[0044] Optionally, the vehicle state simulation component also includes a base, and the first suspension tooling and the second suspension tooling are both arranged on the base, and the electric drive assembly under test is installed on the first suspension tooling and the second suspension tooling. It can be understood that there are many existing implementation methods for the specific structure of the suspension tooling, and the embodiments of the present application do not limit this.

[0045] In some embodiments, the whole vehicle state simulation component includes a first locked-rotor dynamometer and a second locked-rotor dynamometer, the first locked-rotor dynamometer is connected to the first half-axle, and the second locked-rotor dynamometer is connected to the second half-axle; wherein, by simulating tires through the first locked-rotor dynamometer and the second locked-rotor dynamometer, the gear state of the whole vehicle is simulated to meet the test of the boost charging function under different conditions; it can be understood that the first locked-rotor dynamometer works under the power supply state of the battery simulator, and the second locked-rotor dynamometer works under the power supply state of the charging pile simulator.

[0046] Exemplarily, the test of the development of the boost charging function is carried out by mechanical connection. The electric drive assembly under test is installed and fixed on the first suspension fixture and the second suspension fixture by simulating the state of the whole vehicle; one end of the first half-axle is fixed on the first locked-rotor dynamometer, and the other end is connected to the reducer of the electric drive assembly under test; one end of the second half-axle is fixed on the second locked-rotor dynamometer, and the other end is connected to the reducer of the electric drive assembly under test. During the development of the boost charging function, preliminary performance testing can be carried out to make preliminary preparations for the development of the boost charging function and carry out the development of the boost charging function; after the connection of the electric drive assembly under test is completed, the first locked-rotor dynamometer and the second locked-rotor dynamometer are in locked-rotor mode, so that the electric drive assembly under test is The electric drive assembly is in a blocked state, simulating the vehicle to be in the parking P gear state; the battery simulator and the charging pile simulator simulate the vehicle battery and the charging pile respectively to develop the boost charging function; the first torque flange and the second torque flange collect the torque value generated by the reducer of the tested electric drive assembly during the boost charging function development stage to provide data for the boost charging function development; the first vibration sensor, the second vibration sensor, the first noise sensor and the second noise sensor collect the vibration value and noise of the boost charging function development state, so that the boost charging function development can be continuously optimized through data and the boost charging function development can be completed more quickly and efficiently.

[0047] The boost charging function is developed through mechanical connection. The first and second suspension fixtures, the first and second half-axles, the battery simulator and the charging pile simulator, the first and second torque flanges, the first and second locked-rotor dynamometers, and sensors are used to simulate the whole vehicle scenario and the state of the electric drive assembly under test in the whole vehicle. The first and second suspension fixtures are connected to the motor of the electric drive assembly under test, and the first and second locked-rotor dynamometers can simulate the state of the P gear and N gear of the whole vehicle. The battery simulator and the charging pile simulator simulate the battery and the charging pile of the whole vehicle respectively, and are respectively connected to the high-voltage output side (bus terminal) and the low-voltage input side of the motor of the electric drive assembly under test. Different voltages are given according to different development plans to simulate the boost charging of the whole vehicle. Connect the first vibration sensor and the second vibration sensor to monitor the vibration of the torque flange in the development stage; monitor the torque through the first torque flange and the second torque flange to determine whether there is torque fluctuation in the reducer of the electric drive assembly under test when the boost charging development is carried out; control the three-phase copper busbar of the boost charging to be disconnected and attracted through the first relay and the second relay to meet the development of boost charging of different schemes; use the first current sensor and the second current sensor to monitor the three-phase current of the boost charging, and continuously optimize according to the real-time data.

[0048] As mentioned above, the embodiments of the present application are mainly for the development and testing of boost charging through mechanical connection, which mainly solves the function of boost charging through mechanical connection. During the development of boost charging, mechanical devices are used to connect, fix and collect data; through the embodiments of the present application, different schemes can be switched faster during the development stage, which improves development efficiency, reduces time consumption, and can collect detailed data faster and more accurately. The mechanical connection method of the embodiments of the present application is fast, efficient and easy to use. The embodiments of the present application mainly simulate the development of boost charging of the whole vehicle through the connection method of the mechanical structure. Different types of suspension tooling can be used to adapt to the development of boost charging of different types of motors; the disconnection and attraction of the relay are used to control the on and off of the three-phase copper busbar to develop different schemes; data collection and real-time monitoring are carried out through sensors.

[0049] In the second aspect, based on the above embodiments, please refer to Figure 2 , the embodiment of the present application also provides a boost charging function test method. The boost charging function test method provided in this embodiment specifically includes:

[0050] 100. Provide the electric drive assembly under test with a simulated vehicle gear-engaging state in a boost charging function stage through the vehicle state simulation component.

[0051] Specifically, the first locked-rotor dynamometer and the second locked-rotor dynamometer are controlled to be locked to provide the electric drive assembly under test with a simulated vehicle P gear state in the boost charging function stage; the first locked-rotor dynamometer and the second locked-rotor dynamometer are controlled to be not locked to provide the electric drive assembly under test with a simulated vehicle N gear state in the boost charging function stage.

[0052] By providing the electric drive assembly under test with a simulated vehicle gear state during the boost charging function stage through the vehicle state simulation component, the performance of the electric drive assembly can be evaluated more comprehensively. For example, the driving state of an electric vehicle under different charging conditions is simulated in a laboratory environment to verify whether the boost charging function of the electric drive assembly meets the design requirements. For example, performance verification and optimization are performed during the product development stage to improve the performance of the electric drive assembly by adjusting the control strategy and simulation parameters. For example, quality control and testing are performed on the production line to ensure that every electric vehicle leaving the factory has a stable boost charging function and good performance.

[0053] 200. Provide a simulated vehicle battery power supply state for the electric drive assembly under test by using the battery simulator, and provide a simulated charging pile power supply state for the electric drive assembly under test by using the charging pile simulator.

[0054] Exemplarily, set the test parameters and conditions; configure the output voltage, current, internal resistance and other parameters of the battery simulator according to the test requirements to simulate the power supply status of the vehicle battery; configure the charging protocol, output power and other parameters of the charging pile simulator to simulate the power supply status of the charging pile; start the test program to simulate the charging process of the electric vehicle. During the test, the battery simulator and the charging pile simulator will output simulated voltage, current and other signals to the electric drive assembly under test in real time. The various parameters and performance indicators during the test, such as charging efficiency, power factor, voltage fluctuation, etc., are recorded through the data acquisition system. These data are then analyzed and processed to evaluate the performance of the electric drive assembly.

[0055] 300. Collect the torque value of the electric drive assembly under test through the torque component, and collect the vibration value and noise of the torque component through the detection component to provide test data.

[0056] Specifically, when the battery simulator is in the power supply state and in the boost charging function stage, the torque value generated by the electric drive assembly under test is collected through the first torque flange, the vibration value of the first torque flange is collected through the first vibration sensor, and the noise of the first torque flange is collected through the first noise sensor.

[0057] Specifically, when the charging pile simulator is in the power supply state and in the boost charging function stage, the torque value generated by the electric drive assembly under test is collected through the second torque flange, the vibration value of the second torque flange is collected through the second vibration sensor, and the noise of the second torque flange is collected through the second noise sensor.

[0058] It can be understood that the first torque flange is provided with a first torque sensor, and the second torque flange is provided with a second torque sensor, and the sensors can sense the torsional moment on the shaft and convert it into a measurable electrical signal.

[0059] It is understandable that the vibration sensor in the detection component usually uses piezoelectric, capacitive or inductive principles to sense mechanical vibration. When the torque component or electric drive assembly generates vibration, the vibration sensor converts these mechanical vibrations into electrical signals. Through signal processing and analysis, the frequency, amplitude and other parameters of the vibration can be obtained.

[0060] Noise collection is usually achieved through microphones or acoustic sensors. These sensors can capture sound waves in the air and convert them into electrical signals. By analyzing these electrical signals, the noise level, spectrum characteristics, etc. generated by the electric drive assembly during operation can be evaluated.

[0061] On the basis of the above embodiments, a boost charging function test method provided in the embodiments of the present application can also be embodied as follows:

[0062] 400. Control the three-phase copper busbar of the battery simulator to disconnect and close through the first relay, and detect the three-phase current of the boost charging of the battery simulator through the first current sensor.

[0063] 500. Control the three-phase copper busbar of the charging pile simulator to be disconnected and closed through the second relay, and detect the three-phase current of the boost charging of the charging pile simulator through the second current sensor.

[0064] The above steps are not to be performed in a strict order as described in the numbers, but should be understood as an overall solution.

[0065] The boost charging function testing device provided in the embodiment of the present application can be used to execute the boost charging function testing method provided in the above embodiment, and has corresponding functions and beneficial effects.

[0066] In a third aspect, an embodiment of the present application further provides an electronic device, which can integrate the boost charging function testing device provided in an embodiment of the present application. Figure 3 Schematic diagram of the structure of an electronic device provided by an embodiment of the present application. Figure 3The electronic device includes: an input device 73, an output device 74, a memory 72 and one or more processors 71; the memory 72 is used to store one or more programs; when the one or more programs are executed by the one or more processors 41, the one or more processors 71 implement the boost charging function test method provided in the above embodiment. The input device 73, the output device 74, the memory 72 and the processor 71 can be connected by a bus or other means. Figure 3 The example of connecting through bus is taken in the following.

[0067] The processor 71 executes various functional applications and data processing of the device by running the software programs, instructions and modules stored in the memory 72, that is, implements the above-mentioned boost charging function test method.

[0068] The electronic device provided above can be used to execute the boost charging function test method provided in the above embodiment, and has corresponding functions and beneficial effects.

[0069] In a fourth aspect, an embodiment of the present application also provides a computer-readable storage medium, which includes a stored computer program; wherein, when the computer program is running, the device where the computer-readable storage medium is located is controlled to execute the boost charging function test method as described above, and can achieve the same beneficial effects.

[0070] Of course, the storage medium containing computer executable instructions provided in the embodiment of the present application, whose computer executable instructions are not limited to the boost charging function test method described above, can also execute related operations in the boost charging function test method provided in any embodiment of the present application.

[0071] The computer program or instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer program or instructions may be transmitted from one website, computer, server or data center to another website, computer, server or data center by wired or wireless means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium, such as a floppy disk, a hard disk, or a magnetic tape; it may also be an optical medium, such as a digital video disk; it may also be a semiconductor medium, such as a solid-state drive. The computer-readable storage medium may be a volatile or non-volatile storage medium, or may include both volatile and non-volatile types of storage media.

[0072] In several embodiments provided in the present application, it should be understood that the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are merely schematic. For example, the flowcharts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the devices, methods and computer program products according to multiple embodiments of the present application. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of a code, and the module, a program segment or a part of a code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of boxes in the block diagram and / or flowchart can be implemented with a dedicated hardware-based system that performs a specified function or action, or can be implemented with a combination of dedicated hardware and computer instructions.

[0073] In addition, the functional modules in the various embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.

[0074] If the functions are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium, including several instructions for enabling an electronic device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0075] The above description is only an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0076] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0077] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A boost charging function test device, characterized in that: include: Tested electric drive assembly, vehicle status simulation component, torque component, detection component, battery simulator and charging pile simulator; The electric drive assembly under test is arranged on the vehicle state simulation component, and the electric drive assembly under test is connected to the torque component, the detection component, the battery simulator and the charging pile simulator; The vehicle state simulation component provides the electric drive assembly under test with a simulated vehicle gear state in the boost charging function stage; the battery simulator provides the electric drive assembly under test with a simulated vehicle battery power supply state, and the charging pile simulator provides the electric drive assembly under test with a simulated charging pile power supply state; The torque value of the electric drive assembly under test is collected through the torque component, and the vibration value and noise of the torque component are collected through the detection component to provide test data.

2. The boost charging function test device according to claim 1, characterized in that: The torque assembly includes a first torque flange, a second torque flange, a first half-shaft and a second half-shaft. The first torque flange is connected to the reducer of the electric drive assembly under test through the first half-shaft, and the second torque flange is connected to the reducer of the electric drive assembly under test through the second half-shaft. The first torque flange works in conjunction with the battery simulator, and the second torque flange works in conjunction with the charging pile simulator.

3. The boost charging function test device according to claim 1, characterized in that: The detection component includes a first vibration sensor, a second vibration sensor, a first noise sensor, and a second noise sensor. The first vibration sensor and the first noise sensor work in conjunction with the battery simulator, and the second vibration sensor and the second noise sensor work in conjunction with the charging pile simulator.

4. The boost charging function test device according to claim 1, characterized in that: It also includes a first relay, a second relay, a first current sensor and a second current sensor. The first relay and the first current sensor are connected to the battery simulator, and the second relay and the second current sensor are connected to the charging pile simulator.

5. The boost charging function test device according to claim 1, characterized in that: The vehicle state simulation component includes a first suspension fixture and a second suspension fixture, the electric drive assembly under test is installed on the first suspension fixture and the second suspension fixture, and the first suspension fixture and the second suspension fixture are connected to the motor of the electric drive assembly under test.

6. The boost charging function test device according to claim 2, characterized in that: The vehicle state simulation component includes a first locked-rotor dynamometer and a second locked-rotor dynamometer, wherein the first locked-rotor dynamometer is connected to the first half-shaft, and the second locked-rotor dynamometer is connected to the second half-shaft.

7. A boost charging function test method, applied to the boost charging function test device according to any one of claims 1 to 6, characterized in that: include: Providing a simulated vehicle gear-engaging state in a boost charging function stage for the electric drive assembly under test through the vehicle state simulation component; The battery simulator is used to provide the electric drive assembly under test with a simulated vehicle battery power supply state, and the charging pile simulator is used to provide the electric drive assembly under test with a simulated charging pile power supply state; The torque value of the electric drive assembly under test is collected through the torque component, and the vibration value and noise of the torque component are collected through the detection component to provide test data.

8. The boost charging function test method according to claim 7, characterized in that: The step of providing the tested electric drive assembly with a simulated vehicle gear-engaging state in the boost charging function stage by using the vehicle state simulation component includes: Controlling the first locked-rotor dynamometer and the second locked-rotor dynamometer to lock the rotors to provide a simulated vehicle P gear state in a boost charging function stage for the electric drive assembly under test; The first locked-rotor dynamometer and the second locked-rotor dynamometer are controlled to be unblocked to provide a simulated vehicle N gear state in the boost charging function stage for the electric drive assembly under test.

9. The boost charging function test method according to claim 7, characterized in that: The step of collecting the torque value of the electric drive assembly under test by the torque component and collecting the vibration value and noise of the torque component by the detection component includes: Under the power supply state of the battery simulator and in the boost charging function stage, the torque value generated by the tested electric drive assembly is collected through the first torque flange, the vibration value of the first torque flange is collected through the first vibration sensor, and the noise of the first torque flange is collected through the first noise sensor; When the charging pile simulator is powered on and in the boost charging function stage, the torque value generated by the electric drive assembly under test is collected through the second torque flange, the vibration value of the second torque flange is collected through the second vibration sensor, and the noise of the second torque flange is collected through the second noise sensor.

10. The boost charging function test method according to claim 7, characterized in that: Also includes: Control the three-phase copper busbar of the battery simulator to disconnect and close through the first relay, and detect the three-phase current of the boost charging of the battery simulator through the first current sensor; The three-phase copper busbar of the charging pile simulator is controlled to be disconnected and closed by the second relay, and the three-phase current of the boost charging of the charging pile simulator is detected by the second current sensor.

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