Hybrid Transmission Efficiency Testing Device and Method

Abstract

This application provides a hybrid transmission efficiency testing device and method, including: a hybrid transmission, an engine input simulation component, a motor input simulation component, and a wheel-end load simulation component. The hybrid transmission is connected to the engine input simulation component, the motor input simulation component, and the wheel-end load simulation component. By setting the engine input simulation component, the motor input simulation component, and the wheel-end load simulation component, the transmission is simulated during the driving process of the vehicle. The transmission efficiency of the hybrid transmission is tested to obtain the transmission efficiency. This allows for separate testing of the efficiency of the mechanical transmission part of the hybrid transmission, enabling refined testing of the mechanical part efficiency, improving testing efficiency, and providing a reference for improving the overall efficiency of the hybrid transmission assembly.

Description

Technical Field

[0001] This application relates to the field of transmission testing technology, and more specifically, to a hybrid transmission efficiency testing device and method. Background Technology

[0002] Transmission efficiency is a crucial indicator for evaluating transmission performance. Transmission efficiency testing involves systematically testing the transmission components to verify the transmission's efficiency and losses during transmission, thereby assessing its performance and quality. Test results can be directly used for product improvement and optimization, enhancing market competitiveness. Transmissions generate power losses during transmission; efficiency testing allows for the detection and analysis of these losses, identifying their causes, improving energy efficiency, and reducing fuel or electricity consumption. Hybrid transmission efficiency primarily encompasses both motor efficiency and the efficiency of the mechanical transmission components. While testing methods and data processing techniques for hybrid and traditional transmission assemblies are relatively mature, methods for separately testing the efficiency of the mechanical transmission components in hybrid transmissions are not sufficiently refined and have low testing efficiency. Summary of the Invention

[0003] The purpose of this application is to provide a hybrid transmission efficiency testing device and method to solve the problems that the methods for separately testing the efficiency of the mechanical transmission part of a hybrid transmission are not precise enough and have low testing efficiency.

[0004] In a first aspect, embodiments of this application provide a hybrid transmission efficiency testing device, comprising: a hybrid transmission, an engine input simulation component, a motor input simulation component, and a wheel-end load simulation component, wherein the hybrid transmission is connected to the engine input simulation component, the motor input simulation component, and the wheel-end load simulation component.

[0005] The engine input simulation component is set to simulate an engine, the motor input simulation component to simulate a generator, and the wheel-end load simulation component to simulate the load at the vehicle's wheel ends. The hybrid transmission is then tested to obtain the efficiency of the series generator route when the vehicle is traveling.

[0006] The hybrid transmission is tested by simulating the engine with the engine input simulation component, the drive motor with the motor input simulation component, and the load at the wheel end with the vehicle, to obtain the efficiency of the series drive motor route when the vehicle is traveling.

[0007] The engine input simulation component is set to simulate the engine, the motor input simulation component to simulate the drive motor, and the wheel-end load simulation component to simulate the load at the vehicle's wheel ends. The hybrid transmission is then tested to obtain the parallel route efficiency of the vehicle.

[0008] The hybrid transmission is tested by simulating an engine using the engine input simulation component, a drive motor using the motor input simulation component, and the vehicle wheel load simulation component, to obtain the direct-drive power generation efficiency while the vehicle is in motion.

[0009] In the above implementation process, by setting up engine input simulation components, motor input simulation components, and wheel-end load simulation components, the transmission is simulated during the driving process of the vehicle. The transmission efficiency of the hybrid transmission is tested, and the efficiency of the mechanical transmission part of the hybrid transmission can be tested separately. This allows for refined testing of the efficiency of the mechanical part, improves testing efficiency, and provides a reference for improving the efficiency of the hybrid transmission assembly.

[0010] Furthermore, the engine input simulation component includes a first input motor and a first torque sensor, and the motor input simulation component includes a second input motor and a second torque sensor, wherein the first torque sensor is connected to the first input motor and the second torque sensor is connected to the second input motor;

[0011] The wheel-end load simulation component includes a first output motor, a second output motor, a third torque sensor, and a fourth torque sensor. The third torque sensor is connected to the first output motor, and the fourth torque sensor is connected to the second output motor.

[0012] In the above implementation process, a first input motor, a second input motor, a first output motor, and a second output motor are set to simulate an engine, a generator, and a drive motor, thereby driving the vehicle. A torque sensor is set to measure torque and speed, and to test the efficiency under different routes, providing a reference for improving the efficiency of the hybrid transmission assembly.

[0013] Secondly, embodiments of this application provide a hybrid transmission efficiency testing method, applied to the hybrid transmission efficiency testing apparatus as described above, comprising:

[0014] The engine input simulation component is set to simulate an engine, the motor input simulation component to simulate a generator, and the wheel-end load simulation component to simulate the load at the vehicle's wheel ends. The hybrid transmission is then tested to obtain the efficiency of the series generator route when the vehicle is traveling.

[0015] The hybrid transmission is tested by simulating the engine with the engine input simulation component, the drive motor with the motor input simulation component, and the load at the wheel end with the vehicle, to obtain the efficiency of the series drive motor route when the vehicle is traveling.

[0016] The engine input simulation component is set to simulate the engine, the motor input simulation component to simulate the drive motor, and the wheel-end load simulation component to simulate the load at the vehicle's wheel ends. The hybrid transmission is then tested to obtain the parallel route efficiency of the vehicle.

[0017] The hybrid transmission is tested by simulating an engine using the engine input simulation component, a drive motor using the motor input simulation component, and the vehicle wheel load simulation component, to obtain the direct-drive power generation efficiency while the vehicle is in motion.

[0018] In the above implementation process, by setting up engine input simulation components, motor input simulation components, and wheel-end load simulation components, the transmission is simulated during vehicle driving. The transmission efficiency of the hybrid transmission is then tested, allowing for separate testing of the mechanical transmission components' efficiency. This enables refined testing of the mechanical efficiency, improves testing efficiency, and provides a reference for improving the overall efficiency of the hybrid transmission assembly.

[0019] Furthermore, the process of setting the engine input simulation component to simulate the engine, the motor input simulation component to simulate the generator, and the wheel-end load simulation component to simulate the load at the vehicle's wheel ends, and then testing the hybrid transmission to obtain the series generator route efficiency during vehicle travel, includes:

[0020] The first input motor is set to simulate an engine, the second input motor to simulate a generator, and the first output motor and the second output motor are all set to simulate the load at the wheel end of the vehicle. The first input motor drives the second input motor to simulate the engine driving the generator to generate electricity.

[0021] The hybrid transmission was tested, and the torque and speed of the first input motor and the torque and speed of the second input motor were collected.

[0022] The efficiency of the series generator route for the vehicle's travel is calculated as follows:

[0023]

[0024] Among them, T 输入电机1 T is the torque of the first input motor. 输入电机2 n is the torque of the second input motor. 输入电机1 n is the rotational speed of the first input motor. 输入电机2 The second input motor speed is denoted as .

[0025] In the above implementation process, the efficiency of the series generator route of the vehicle is obtained, and the efficiency and loss of the transmission in the transmission process under this route are verified, so as to evaluate the performance and quality of the transmission.

[0026] Furthermore, the process of testing the hybrid transmission by simulating the engine using the engine input simulation component, the drive motor using the motor input simulation component, and the vehicle wheel load simulation component, to obtain the series drive motor route efficiency for vehicle travel, includes:

[0027] The first input motor simulates an engine, the second input motor simulates a drive motor, and the first output motor and the second output motor simulate the load at the wheel end of the vehicle. The operation of the first input motor simulates the engine generating electricity, and the second input motor drives the first output motor and the second output motor to drive the vehicle.

[0028] The hybrid transmission was tested, and the torque and speed of the second input motor, the torque and speed of the first output motor, and the torque and speed of the second output motor were collected.

[0029] The efficiency of the series drive motor route for vehicle travel is calculated as follows:

[0030]

[0031] Among them, T 输入电机2 n is the torque of the second input motor. 输入电机2 T is the rotational speed of the second input motor; 输出电机1 Let n be the torque of the first output motor. 输出电机1 T is the rotational speed of the first output motor; 输出电机2 n represents the torque of the second output motor. 输出电机2 This represents the rotational speed of the second output motor.

[0032] In the above implementation process, the efficiency of the series drive motor route of the vehicle is obtained, and the efficiency and loss of the transmission in the transmission process under this route are verified, so as to evaluate the performance and quality of the transmission.

[0033] Furthermore, the process involves setting the engine input simulation component to simulate the engine, the motor input simulation component to simulate the drive motor, and the wheel-end load simulation component to simulate the load at the vehicle's wheels, and then testing the hybrid transmission to obtain the parallel route efficiency of the vehicle, including:

[0034] The first input motor is set to simulate an engine, the second input motor to simulate a drive motor, and the first output motor and the second output motor to simulate the load at the wheel end of the vehicle. The first input motor and the second input motor simultaneously drive the first output motor and the second output motor to drive the vehicle.

[0035] The hybrid transmission was tested, and the torque and speed of the first input motor, the torque and speed of the second input motor, the torque and speed of the first output motor, and the torque and speed of the second output motor were collected.

[0036] The efficiency of the parallel route traveled by the vehicles was calculated:

[0037]

[0038] Among them, T 输入电机1 T is the torque of the first input motor. 输入电机2 n is the torque of the second input motor. 输入电机1 n is the rotational speed of the first input motor. 输入电机2 T is the rotational speed of the second input motor; 输出电机1 Let n be the torque of the first output motor. 输出电机1 T is the rotational speed of the first output motor; 输出电机2 n represents the torque of the second output motor. 输出电机2 This represents the rotational speed of the second output motor.

[0039] In the above implementation process, the efficiency of the parallel route of the vehicle is obtained, and the efficiency and loss of the transmission in the transmission process under the route are verified, so as to evaluate the performance and quality of the transmission.

[0040] Furthermore, the process of testing the hybrid transmission by simulating an engine using the engine input simulation component, a drive motor using the motor input simulation component, and the vehicle wheel load simulation component, to obtain the direct-drive power generation efficiency while the vehicle is in motion, includes:

[0041] The first input motor is set to simulate an engine, the second input motor to simulate a drive motor, and the first output motor and the second output motor to simulate the load at the wheel end of the vehicle. The first input motor drives the second input motor to simulate a drive generator to generate electricity, and the first input motor drives the first output motor and the second output motor to simulate an engine to drive the vehicle.

[0042] The hybrid transmission was tested, and the torque and speed of the first input motor, the torque and speed of the second input motor, the torque and speed of the first output motor, and the torque and speed of the second output motor were collected.

[0043] The direct-drive power generation efficiency while the vehicle is in motion is calculated as follows:

[0044]

[0045] Among them, T 输入电机1 T is the torque of the first input motor. 输入电机2 n is the torque of the second input motor. 输入电机1 n is the rotational speed of the first input motor. 输入电机2 T is the rotational speed of the second input motor; 输出电机1 Let n be the torque of the first output motor. 输出电机1 T is the rotational speed of the first output motor; 输出电机2 n represents the torque of the second output motor. 输出电机2 This represents the rotational speed of the second output motor.

[0046] In the above implementation process, the efficiency of the series generator route of the vehicle is obtained, and the efficiency and loss of the transmission in the transmission process under this route are verified, so as to evaluate the performance and quality of the transmission.

[0047] Furthermore, it also includes:

[0048] The generator, drive motor stator, and drive motor rotor inside the hybrid transmission assembly are removed, leaving only mechanical components, including shaft gears, clutches, and lubrication systems.

[0049] In the above implementation process, the efficiency of the mechanical transmission part is tested separately, which allows for precise testing of the efficiency of the mechanical part, and at the same time, targeted efforts are made to improve the efficiency of the mechanical part.

[0050] Thirdly, embodiments of this application provide an electronic device, including:

[0051] The system includes a processor, a memory, and a bus. The processor is connected to the memory via the bus. The memory stores computer-readable instructions. When the computer-readable instructions are executed by the processor, they are used to implement the hybrid transmission efficiency testing method described above.

[0052] Fourthly, embodiments of this application provide a computer-readable storage medium storing a computer program that, when executed by a server, implements the hybrid transmission efficiency testing method described above. Attached Figure Description

[0053] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0054] Figure 1 This is a schematic diagram of the structure of a hybrid transmission efficiency testing device provided in an embodiment of this application;

[0055] Figure 2 This is a schematic diagram of another hybrid transmission efficiency testing device provided in an embodiment of this application;

[0056] Figure 3 This is a schematic flowchart of a hybrid transmission efficiency testing method provided in an embodiment of this application;

[0057] Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application;

[0058] Among them, 1. Hybrid transmission; 2. First input motor; 3. Second input motor; 4. First output motor; 5. Second output motor. Detailed Implementation

[0059] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0060] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this application, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0061] Please refer to Figure 1 , Figure 1 This is a schematic diagram of a hybrid transmission efficiency testing device provided in an embodiment of this application. The hybrid transmission efficiency testing device includes: a hybrid transmission 1, an engine input simulation component, a motor input simulation component, and a wheel-end load simulation component. The hybrid transmission is connected to the engine input simulation component, the motor input simulation component, and the wheel-end load simulation component.

[0062] The hybrid transmission is tested by setting up an engine input simulation component to simulate an engine, a motor input simulation component to simulate a generator, and a wheel-end load simulation component to simulate the load at the vehicle's wheels, thereby obtaining the efficiency of the series generator route when the vehicle is in motion.

[0063] Specifically, the hybrid transmission is tested by simulating an engine using the engine input simulation component, a drive motor using the motor input simulation component, and the vehicle wheel load simulation component, to obtain the efficiency of the series drive motor route when the vehicle is in motion. The hybrid transmission is also tested by simulating an engine using the engine input simulation component, a drive motor using the motor input simulation component, and the vehicle wheel load simulation component, to obtain the efficiency of the parallel route when the vehicle is in motion. Finally, the hybrid transmission is tested by simulating an engine using the engine input simulation component, a drive motor using the motor input simulation component, and the vehicle wheel load simulation component, to obtain the direct-drive power generation efficiency when the vehicle is in motion.

[0064] As described above, the embodiments of this application simulate the transmission during the driving process of a vehicle by setting up an engine input simulation component, a motor input simulation component, and a wheel-end load simulation component. The transmission efficiency of the hybrid transmission is tested, and the efficiency of the mechanical transmission part of the hybrid transmission is tested separately. This allows for refined testing of the efficiency of the mechanical part, improves testing efficiency, and provides a reference for improving the efficiency of the hybrid transmission assembly.

[0065] In some embodiments, the engine input simulation component includes a first input motor 2 and a first torque sensor; the motor input simulation component includes a second input motor 3 and a second torque sensor; the first torque sensor is connected to the first input motor; and the second torque sensor is connected to the second input motor. The wheel-end load simulation component includes a first output motor 4, a second output motor 5, a third torque sensor, and a fourth torque sensor; the third torque sensor is connected to the first output motor; and the fourth torque sensor is connected to the second output motor.

[0066] Specifically, the hybrid transmission is connected to a first input motor, a second input motor, a first output motor, and a second output motor, respectively. For example, Figure 1 The diagram illustrates the connection between a first input motor simulating an engine and a second input motor simulating a generator, specifically showing the motor connection relationship in a series generator circuit; for example, Figure 2 The diagram shows the connection between the first input motor simulating an engine and the second input motor simulating a drive motor, illustrating the motor connection relationships in series drive motor routes, parallel routes, and direct drive power generation routes.

[0067] Understandably, a first input motor, a second input motor, a first output motor, and a second output motor are set up to simulate an engine, a generator, and a drive motor, thereby driving the vehicle. A torque sensor is set up to measure torque and speed, test efficiency under different routes, and provide a reference for improving the efficiency of the hybrid transmission assembly.

[0068] Optionally, transmission efficiency, as an important indicator for evaluating transmission performance, involves a systematic test of the transmission components to verify the transmission's efficiency and losses during transmission. This assessment evaluates the transmission's performance and quality, and the test results can be directly used for product improvement and optimization, enhancing the product's market competitiveness. Hybrid transmissions differ from traditional transmissions in that, in addition to the mechanical transmission components, they also include components such as generators, drive motors, and inverters. Conducting separate efficiency tests on the mechanical transmission components allows for precise evaluation of their efficiency and enables targeted efforts to improve their effectiveness.

[0069] Secondly, based on the above embodiments, this application also provides a hybrid transmission efficiency testing method. The hybrid transmission efficiency testing method provided in this embodiment specifically includes:

[0070] 100. The engine input simulation component is set to simulate the engine, the motor input simulation component to simulate the generator, and the wheel-end load simulation component to simulate the load at the vehicle wheel end. The hybrid transmission is then tested to obtain the efficiency of the series generator route when the vehicle is in motion.

[0071] 200. The hybrid transmission is tested by simulating the engine with the engine input simulation component, the drive motor with the motor input simulation component, and the load at the wheel end with the wheel end simulation component, to obtain the efficiency of the series drive motor route when the vehicle is traveling.

[0072] 300. The engine input simulation component is set to simulate the engine, the motor input simulation component to simulate the drive motor, and the wheel-end load simulation component to simulate the load on the vehicle wheel end. The hybrid transmission is then tested to obtain the parallel route efficiency of the vehicle.

[0073] 400. The hybrid transmission is tested by simulating an engine using the engine input simulation component, a drive motor using the motor input simulation component, and the load on the wheel ends using the wheel end simulation component, to obtain the direct drive power generation efficiency of the vehicle.

[0074] Optionally, torque sensors are installed at the front ends of the first input motor, the second input motor, the first output motor, and the second output motor to measure the torque and speed of the first input motor, the second input motor, the first output motor, and the second output motor, so as to analyze the efficiency of the hybrid transmission based on the torque and speed.

[0075] In some embodiments, it also includes:

[0076] The generator, drive motor stator, and drive motor rotor inside the hybrid transmission assembly are removed, leaving only mechanical components, including shaft gears, clutches, and lubrication systems.

[0077] As described above, the embodiments of this application conduct separate tests on the efficiency of the mechanical transmission part, which allows for refined testing of the efficiency of the mechanical part, and enables targeted efforts to improve the efficiency of the mechanical part.

[0078] As described above, the embodiments of this application simulate the transmission during the driving process of a vehicle by setting up an engine input simulation component, a motor input simulation component, and a wheel-end load simulation component. The transmission efficiency of the hybrid transmission is tested, and the efficiency of the mechanical transmission part of the hybrid transmission is tested separately. This allows for refined testing of the efficiency of the mechanical part, improves testing efficiency, and provides a reference for improving the efficiency of the hybrid transmission assembly.

[0079] For example, during the test, the generator, drive motor stator and rotor inside the hybrid transmission assembly are removed, leaving only mechanical components such as shaft gears, clutches, and lubrication systems. An input motor is used in the test to simulate the engine, generator, and drive motor. The tests include series generator route efficiency, series drive motor route efficiency, parallel route efficiency, and direct-drive generator efficiency.

[0080] In some embodiments, the process of setting the engine input simulation component to simulate an engine, the motor input simulation component to simulate a generator, and the wheel-end load simulation component to simulate the load at the vehicle's wheel ends, and testing the hybrid transmission to obtain the series generator route efficiency during vehicle travel, includes:

[0081] The first input motor is set to simulate an engine, the second input motor to simulate a generator, and the first output motor and the second output motor are all set to simulate the load at the wheel end of the vehicle. The first input motor drives the second input motor to simulate the engine driving the generator to generate electricity.

[0082] The hybrid transmission was tested, and the torque and speed of the first input motor and the torque and speed of the second input motor were collected.

[0083] The efficiency of the series generator route for the vehicle's travel is calculated as follows:

[0084]

[0085] Among them, T 输入电机1 T is the torque of the first input motor. 输入电机2 n is the torque of the second input motor. 输入电机1 n is the rotational speed of the first input motor. 输入电机2 The second input motor speed is denoted as .

[0086] Understandably, obtaining the efficiency of the series generator route for vehicle travel and verifying the efficiency and losses of the transmission during the transmission process under this route are used to evaluate the performance and quality of the transmission.

[0087] In some embodiments, the process of testing the hybrid transmission by simulating an engine using the engine input simulation component, a drive motor using the motor input simulation component, and the vehicle wheel load simulation component to obtain the series drive motor route efficiency during vehicle travel includes:

[0088] The first input motor simulates an engine, the second input motor simulates a drive motor, and the first output motor and the second output motor simulate the load at the wheel end of the vehicle. The operation of the first input motor simulates the engine generating electricity, and the second input motor drives the first output motor and the second output motor to drive the vehicle.

[0089] The hybrid transmission was tested, and the torque and speed of the second input motor, the torque and speed of the first output motor, and the torque and speed of the second output motor were collected.

[0090] The efficiency of the series drive motor route for vehicle travel is calculated as follows:

[0091]

[0092] Among them, T 输入电机2 n is the torque of the second input motor. 输入电机2 T is the rotational speed of the second input motor; 输出电机1 Let n be the torque of the first output motor. 输出电机1 T represents the rotational speed of the first output motor. 输出电机2 n represents the torque of the second output motor. 输出电机2 This represents the rotational speed of the second output motor.

[0093] Understandably, obtaining the efficiency of the series drive motor route of the vehicle's movement is used to verify the efficiency and losses of the transmission during the transmission process under that route, thereby evaluating the performance and quality of the transmission.

[0094] In some embodiments, the process of setting the engine input simulation component to simulate an engine, the motor input simulation component to simulate a drive motor, and the wheel-end load simulation component to simulate the load at the vehicle's wheel ends, and testing the hybrid transmission to obtain the parallel route efficiency of the vehicle, includes:

[0095] The first input motor is set to simulate an engine, the second input motor to simulate a drive motor, and the first output motor and the second output motor to simulate the load at the wheel end of the vehicle. The first input motor and the second input motor simultaneously drive the first output motor and the second output motor to drive the vehicle.

[0096] The hybrid transmission was tested, and the torque and speed of the first input motor, the torque and speed of the second input motor, the torque and speed of the first output motor, and the torque and speed of the second output motor were collected.

[0097] The efficiency of the parallel route traveled by the vehicles was calculated:

[0098]

[0099] Among them, T 输入电机1 T is the torque of the first input motor. 输入电机2 n is the torque of the second input motor. 输入电机1 n is the rotational speed of the first input motor. 输入电机2 T is the rotational speed of the second input motor; 输出电机1 Let n be the torque of the first output motor. 输出电机1 T is the rotational speed of the first output motor; 输出电机2 n represents the torque of the second output motor. 输出电机2 This represents the rotational speed of the second output motor.

[0100] Understandably, obtaining the efficiency of the parallel route traveled by the vehicle and verifying the efficiency and losses of the transmission during the transmission process under that route are used to evaluate the performance and quality of the transmission.

[0101] In some embodiments, the process of testing the hybrid transmission by simulating an engine using the engine input simulation component, a drive motor using the motor input simulation component, and the vehicle wheel load simulation component to obtain the direct-drive power generation efficiency while the vehicle is in motion includes:

[0102] The first input motor is set to simulate an engine, the second input motor to simulate a drive motor, and the first output motor and the second output motor to simulate the load at the wheel end of the vehicle. The first input motor drives the second input motor to simulate a drive generator to generate electricity, and the first input motor drives the first output motor and the second output motor to simulate an engine to drive the vehicle.

[0103] The hybrid transmission was tested, and the torque and speed of the first input motor, the torque and speed of the second input motor, the torque and speed of the first output motor, and the torque and speed of the second output motor were collected.

[0104] The direct-drive power generation efficiency while the vehicle is in motion is calculated as follows:

[0105]

[0106] Among them, T 输入电机1 T is the torque of the first input motor. 输入电机2 n is the torque of the second input motor. 输入电机1 n is the rotational speed of the first input motor. 输入电机2 T is the rotational speed of the second input motor; 输出电机1 Let n be the torque of the first output motor. 输出电机1 T is the rotational speed of the first output motor; 输出电机2 n represents the torque of the second output motor. 输出电机2 This represents the rotational speed of the second output motor.

[0107] Understandably, obtaining the efficiency of the series generator route for vehicle travel and verifying the efficiency and losses of the transmission during the transmission process under this route are used to evaluate the performance and quality of the transmission.

[0108] The steps described above are not strictly performed in the order of their numbers; they should be understood as a whole.

[0109] The hybrid transmission efficiency testing device provided in this application embodiment can be used to execute the hybrid transmission efficiency testing method provided in the above embodiment, and has corresponding functions and beneficial effects.

[0110] Thirdly, embodiments of this application also provide an electronic device that can integrate the hybrid transmission efficiency testing system provided in embodiments of this application. Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. (Reference) Figure 4The electronic device includes an input device 73, an output device 74, a memory 72, and one or more processors 71. The memory 72 stores one or more programs. When the one or more programs are executed by the one or more processors 71, the one or more processors 71 implement the hybrid transmission efficiency testing method provided in the above embodiments. The input device 73, output device 74, memory 72, and processors 71 can be connected via a bus or other means. Figure 4 Taking the example of a connection between China and Israel via a bus.

[0111] The processor 71 executes various functional applications and data processing of the device by running software programs, instructions and modules stored in the memory 72, thereby realizing the above-mentioned hybrid transmission efficiency test method.

[0112] The electronic device provided above can be used to execute the hybrid transmission efficiency test method provided in the above embodiments, and has corresponding functions and beneficial effects.

[0113] Fourthly, embodiments of this application also provide a computer-readable storage medium, which includes a stored computer program; wherein, when the computer program is running, it controls the device where the computer-readable storage medium is located to execute the hybrid transmission efficiency test method described above, and can achieve the same beneficial effects.

[0114] Of course, the computer-executable instructions provided in the embodiments of this application are not limited to the hybrid transmission efficiency testing method described above, but can also execute related operations in the hybrid transmission efficiency testing method provided in any embodiment of this application.

[0115] The computer program or instructions may be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions may be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium may be any available medium that a computer can access, 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, hard disk, or magnetic tape; or an optical medium, such as a digital video optical disc; or 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.

[0116] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can also be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram and / or flowchart, and combinations of blocks in block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

[0117] In addition, the functional modules in the various embodiments of this application can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0118] If the aforementioned functions are implemented as software functional 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 this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause an electronic device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0119] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0120] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0121] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A hybrid transmission efficiency testing device, characterized in that, include: The system includes a hybrid transmission, an engine input simulation component, a motor input simulation component, and a wheel-end load simulation component, wherein the hybrid transmission is connected to the engine input simulation component, the motor input simulation component, and the wheel-end load simulation component. The engine input simulation component is set to simulate an engine, the motor input simulation component to simulate a generator, and the wheel-end load simulation component to simulate the load at the vehicle's wheel ends. The hybrid transmission is then tested to obtain the efficiency of the series generator route when the vehicle is in motion. The hybrid transmission is tested by simulating the engine with the engine input simulation component, the drive motor with the motor input simulation component, and the load at the wheel end with the vehicle wheel end with the wheel end simulation component, so as to obtain the efficiency of the series drive motor route when the vehicle is traveling. The engine input simulation component is set to simulate the engine, the motor input simulation component to simulate the drive motor, and the wheel load simulation component to simulate the load at the vehicle's wheel ends. The hybrid transmission is then tested to obtain the parallel route efficiency of the vehicle. The hybrid transmission is tested by simulating an engine using the engine input simulation component, a drive motor using the motor input simulation component, and the vehicle wheel load simulation component, to obtain the direct-drive power generation efficiency while the vehicle is in motion.

2. The hybrid transmission efficiency testing device according to claim 1, characterized in that, The engine input simulation component includes a first input motor and a first torque sensor, and the motor input simulation component includes a second input motor and a second torque sensor, wherein the first torque sensor is connected to the first input motor and the second torque sensor is connected to the second input motor. The wheel-end load simulation component includes a first output motor, a second output motor, a third torque sensor, and a fourth torque sensor. The third torque sensor is connected to the first output motor, and the fourth torque sensor is connected to the second output motor.

3. A method for testing the efficiency of a hybrid transmission, applied to the hybrid transmission efficiency testing apparatus as described in claim 2, characterized in that, include: The engine input simulation component is set to simulate an engine, the motor input simulation component to simulate a generator, and the wheel-end load simulation component to simulate the load at the vehicle's wheel ends. The hybrid transmission is then tested to obtain the efficiency of the series generator route when the vehicle is in motion. The hybrid transmission is tested by simulating the engine with the engine input simulation component, the drive motor with the motor input simulation component, and the load at the wheel end with the vehicle wheel end with the wheel end simulation component, so as to obtain the efficiency of the series drive motor route when the vehicle is traveling. The engine input simulation component is set to simulate the engine, the motor input simulation component to simulate the drive motor, and the wheel load simulation component to simulate the load at the vehicle's wheel ends. The hybrid transmission is then tested to obtain the parallel route efficiency of the vehicle. The hybrid transmission is tested by simulating an engine using the engine input simulation component, a drive motor using the motor input simulation component, and the vehicle wheel load simulation component, to obtain the direct-drive power generation efficiency while the vehicle is in motion.

4. The hybrid transmission efficiency testing method according to claim 3, characterized in that, The process involves setting up an engine input simulation component to simulate an engine, a motor input simulation component to simulate a generator, and a wheel-end load simulation component to simulate the load at the vehicle's wheels. The hybrid transmission is then tested to obtain the efficiency of the series generator route during vehicle travel, including: The first input motor is set to simulate an engine, the second input motor to simulate a generator, and the first output motor and the second output motor are all set to simulate the load at the wheel end of the vehicle. The first input motor drives the second input motor to simulate the engine driving the generator to generate electricity. The hybrid transmission was tested, and the torque and speed of the first input motor and the torque and speed of the second input motor were collected. The efficiency of the series generator route for the vehicle's travel is calculated as follows: ； in, The torque of the first input motor is [value]. The torque of the second input motor is... The speed of the first input motor. The second input motor speed is denoted as .

5. The hybrid transmission efficiency testing method according to claim 3, characterized in that, The process involves simulating an engine using the engine input simulation component, a drive motor using the motor input simulation component, and the vehicle wheel load using the wheel load simulation component to test the hybrid transmission and obtain the series drive motor route efficiency for vehicle travel. This includes: The first input motor simulates an engine, the second input motor simulates a drive motor, and the first output motor and the second output motor simulate the load at the wheel end of the vehicle. The operation of the first input motor simulates the engine generating electricity, and the second input motor drives the first output motor and the second output motor to drive the vehicle. The hybrid transmission was tested, and the torque and speed of the second input motor, the torque and speed of the first output motor, and the torque and speed of the second output motor were collected. The efficiency of the series drive motor route for vehicle travel is calculated as follows: ； in, The torque of the second input motor is [value]. The speed of the second input motor; The torque of the first output motor is [value]. The rotational speed of the first output motor; This represents the torque of the second output motor. This represents the rotational speed of the second output motor.

6. The hybrid transmission efficiency testing method according to claim 3, characterized in that, The process involves setting up an engine input simulation component to simulate an engine, a motor input simulation component to simulate a drive motor, and a wheel-end load simulation component to simulate the load at the vehicle's wheels. The hybrid transmission is then tested to obtain the parallel route efficiency of the vehicle, including: The first input motor is set to simulate an engine, the second input motor to simulate a drive motor, and the first output motor and the second output motor to simulate the load at the wheel end of the vehicle. The first input motor and the second input motor simultaneously drive the first output motor and the second output motor to drive the vehicle. The hybrid transmission was tested, and the torque and speed of the first input motor, the torque and speed of the second input motor, the torque and speed of the first output motor, and the torque and speed of the second output motor were collected. The efficiency of the parallel route traveled by the vehicles was calculated: ； in, The torque of the first input motor is [value]. The torque of the second input motor is [value]. The speed of the first input motor. The speed of the second input motor; The torque of the first output motor is [value]. The rotational speed of the first output motor; This represents the torque of the second output motor. This represents the rotational speed of the second output motor.

7. The hybrid transmission efficiency testing method according to claim 3, characterized in that, The process involves simulating an engine using the engine input simulation component, a drive motor using the motor input simulation component, and the vehicle wheel load simulation component, to test the hybrid transmission and obtain the direct-drive power generation efficiency while the vehicle is in motion. This includes: The first input motor is set to simulate an engine, the second input motor to simulate a drive motor, and the first output motor and the second output motor to simulate the load at the wheel end of the vehicle. The first input motor drives the second input motor to simulate a drive generator to generate electricity, and the first input motor drives the first output motor and the second output motor to simulate an engine to drive the vehicle. The hybrid transmission was tested, and the torque and speed of the first input motor, the torque and speed of the second input motor, the torque and speed of the first output motor, and the torque and speed of the second output motor were collected. The direct-drive power generation efficiency while the vehicle is in motion is calculated as follows: ； in, The torque of the first input motor is [value]. The torque of the second input motor is... The speed of the first input motor. The speed of the second input motor; The torque of the first output motor is [value]. The rotational speed of the first output motor; This represents the torque of the second output motor. This represents the rotational speed of the second output motor.

8. The hybrid transmission efficiency testing method according to claim 3, characterized in that, Also includes: The generator, drive motor stator, and drive motor rotor inside the hybrid transmission assembly are removed, leaving only mechanical components, including shaft gears, clutches, and lubrication systems.

9. An electronic device, characterized in that, include: The processor, memory, and bus are provided, wherein the processor is connected to the memory via the bus, and the memory stores computer-readable instructions that, when executed by the processor, are used to implement the hybrid transmission efficiency testing method as described in any one of claims 3-8.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a server, implements the hybrid transmission efficiency testing method as described in any one of claims 3-8.

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