Device and method for testing efficiency of hybrid transmission

Abstract

The embodiment of the invention provides a hybrid transmission efficiency testing device and method, and the device comprises a hybrid transmission, an engine input simulation assembly, a motor input simulation assembly, and a wheel end load simulation assembly, and the hybrid transmission is connected with the engine input simulation assembly, the motor input simulation assembly, and the wheel end load simulation assembly. The engine input simulation assembly, the motor input simulation assembly and the wheel end load simulation assembly are arranged to simulate the vehicle driving process of the transmission, the hybrid transmission is tested to obtain the transmission efficiency, the efficiency of the mechanical transmission part of the hybrid transmission is independently tested, the efficiency of the mechanical transmission part can be finely tested, and the test efficiency of the hybrid transmission is improved. And meanwhile, a reference is provided for improving the efficiency of the hybrid transmission assembly.

Description

Technical Field

[0001] The present application relates to the technical field of transmission testing, and in particular to a hybrid transmission efficiency testing device and method. Background Art

[0002] Transmission efficiency is an important indicator for evaluating transmission performance. Transmission efficiency test refers to a systematic test of the transmission components to verify the efficiency and loss of the transmission during the transmission process, so as to evaluate the performance and quality of the transmission. The test results can be directly used for product improvement and optimization to enhance product market competitiveness. The transmission will produce power loss during the transmission process. Through the transmission efficiency test, the power loss of the transmission can be detected and analyzed, the cause of the power loss can be found, the energy efficiency of the transmission system can be improved, and fuel or electricity consumption can be reduced. The efficiency of the hybrid transmission mainly includes the efficiency of the motor and the efficiency of the mechanical transmission part. At present, the test methods and data processing methods for the transmission efficiency of the hybrid transmission assembly and the traditional transmission assembly are relatively mature, but the methods for the efficiency test of the mechanical transmission part of the hybrid transmission are not refined enough, and the test efficiency is low. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a hybrid transmission efficiency testing device and method to solve the problem that the methods for performing efficiency testing on the mechanical transmission part of the hybrid transmission alone are not sophisticated enough and the testing efficiency is low.

[0004] In a first aspect, an embodiment of the present application provides 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 the engine, the motor input simulation component is set to simulate the generator, and the wheel end load simulation component is set to simulate the load of the vehicle wheel end, and the hybrid transmission is tested to obtain the series generator route efficiency of the vehicle;

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

[0007] The engine input simulation component is set to simulate the engine, the motor input simulation component is set to simulate the drive motor, and the wheel end load simulation component is set to simulate the load of the vehicle wheel end, and the hybrid transmission is tested to obtain the parallel route efficiency of the vehicle;

[0008] The hybrid transmission is tested by simulating the engine by the engine input simulation component, simulating the drive motor by the motor input simulation component, and simulating the load on the wheel end of the vehicle by the wheel end load simulation component to obtain the direct drive power generation efficiency of the vehicle.

[0009] In the above implementation process, the engine input simulation component, the motor input simulation component, and the wheel-end load simulation component are set to simulate the transmission driving the vehicle, and the hybrid transmission is tested to obtain the transmission efficiency. The efficiency of the mechanical transmission part of the hybrid transmission is tested separately, and the efficiency of the mechanical part can be tested in a refined manner to improve the test efficiency, while providing a reference for improving the efficiency of the hybrid transmission assembly.

[0010] Further, the engine input simulation component includes a first input motor and a first torque sensor, the motor input simulation component includes a second input motor 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;

[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 to drive the vehicle. A torque sensor is set to measure the torque and speed, and the efficiency under different routes is tested to provide a reference for improving the efficiency of the hybrid transmission assembly.

[0013] In a second aspect, an embodiment of the present application provides a hybrid transmission efficiency test method, which is applied to the hybrid transmission efficiency test device as described above, comprising:

[0014] The engine input simulation component is set to simulate the engine, the motor input simulation component is set to simulate the generator, and the wheel end load simulation component is set to simulate the load of the vehicle wheel end, and the hybrid transmission is tested to obtain the series generator route efficiency of the vehicle;

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

[0016] The engine input simulation component is set to simulate the engine, the motor input simulation component is set to simulate the drive motor, and the wheel end load simulation component is set to simulate the load of the vehicle wheel end, and the hybrid transmission is tested to obtain the parallel route efficiency of the vehicle;

[0017] The hybrid transmission is tested by simulating the engine by the engine input simulation component, simulating the drive motor by the motor input simulation component, and simulating the load on the wheel end of the vehicle by the wheel end load simulation component to obtain the direct drive power generation efficiency of the vehicle.

[0018] In the above implementation process, the engine input simulation component, the motor input simulation component, and the wheel-end load simulation component are set to simulate the transmission driving the vehicle, and the hybrid transmission is tested to obtain the transmission efficiency. The efficiency of the mechanical transmission part of the hybrid transmission is tested separately, and the efficiency of the mechanical part can be refined to improve the test efficiency. At the same time, it provides a reference for improving the efficiency of the hybrid transmission assembly.

[0019] Furthermore, the setting of 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 wheel end of the vehicle, testing the hybrid transmission, and obtaining the series generator route efficiency of the vehicle includes:

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

[0021] Testing the hybrid transmission to collect the torque and speed of the first input motor and the torque and speed of the second input motor;

[0022] The efficiency of the series generator route along which the vehicle is traveling is calculated:

[0023]

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

[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 during the transmission process under this route are verified, so as to evaluate the performance and quality of the transmission.

[0026] Furthermore, the hybrid transmission is tested by simulating the engine by the engine input simulation component, simulating the drive motor by the motor input simulation component, and simulating the load at the wheel end of the vehicle by the wheel end load simulation component to obtain the series drive motor route efficiency of the vehicle, including:

[0027] The first input motor is set to simulate an engine, the second input motor is set to simulate a drive motor, and the first output motor and the second output motor are set to simulate the load at the wheel end of the vehicle, the first input motor is set to simulate the engine generating electricity, and the second input motor drives the first output motor and the second output motor to drive the vehicle to travel;

[0028] Testing the hybrid transmission to collect 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;

[0029] The efficiency of the series drive motor route of the vehicle is calculated:

[0030]

[0031] Among them, T 输入电机2 is the torque of the second input motor, n 输入电机2 is the speed of the second input motor; T 输出电机1 is the torque of the first output motor, n 输出电机1 is the speed of the first output motor; T 输出电机2 is the torque of the second output motor, n 输出电机2 is the rotation 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 during the transmission process under this route are verified, so as to evaluate the performance and quality of the transmission.

[0033] Furthermore, the setting of 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 on the vehicle wheel end, testing the hybrid transmission, and obtaining the parallel route efficiency of the vehicle includes:

[0034] The first input motor simulates an engine, the second input motor simulates a drive motor, the first output motor and the second output motor both simulate a load at a wheel end of a vehicle, and the first input motor and the second input motor simultaneously drive the first output motor and the second output motor to drive the vehicle to travel;

[0035] Testing the hybrid transmission, collecting 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;

[0036] The parallel route efficiency of vehicle travel is calculated:

[0037]

[0038] Among them, T 输入电机1 is the torque of the first input motor, T 输入电机2 is the torque of the second input motor, n 输入电机1 is the speed of the first input motor, n 输入电机2 is the speed of the second input motor; T 输出电机1 is the torque of the first output motor, n 输出电机1 is the speed of the first output motor; T 输出电机2 is the torque of the second output motor, n 输出电机2 is the rotation 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 during the transmission process under the route are verified, so as to evaluate the performance and quality of the transmission.

[0040] Furthermore, the hybrid transmission is tested by simulating the engine by the engine input simulation component, simulating the drive motor by the motor input simulation component, and simulating the load at the wheel end of the vehicle by the wheel end load simulation component to obtain the direct drive power generation efficiency of the vehicle, including:

[0041] The first input motor is configured to simulate an engine, the second input motor is configured to simulate a drive motor, and the first output motor and the second output motor are configured to simulate a load at a wheel end of a vehicle, the first input motor drives the second input motor to simulate driving a 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 to travel;

[0042] Testing the hybrid transmission, collecting 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;

[0043] The direct drive power generation efficiency of the vehicle is calculated:

[0044]

[0045] Among them, T 输入电机1 is the torque of the first input motor, T 输入电机2 is the torque of the second input motor, n 输入电机1 is the speed of the first input motor, n 输入电机2 is the speed of the second input motor; T 输出电机1 is the torque of the first output motor, n 输出电机1 is the speed of the first output motor; T 输出电机2 is the torque of the second output motor, n 输出电机2 is the 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 during 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, the drive motor stator, and the drive motor rotor inside the hybrid transmission assembly are removed, and only mechanical parts are retained, wherein the mechanical parts include shaft teeth, a clutch, and a lubrication system.

[0049] In the above implementation process, the efficiency of the mechanical transmission part is tested separately, so that the efficiency of the mechanical part can be tested in a refined manner, and at the same time, the efficiency improvement work of the mechanical part can be carried out in a targeted manner.

[0050] In a third aspect, an embodiment of the present application provides an electronic device, including:

[0051] A processor, a memory and a bus, wherein the processor is connected to the memory via the bus, and 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 test method as described above.

[0052] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a server, the hybrid transmission efficiency test method as described above is implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] 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.

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

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

[0056] Figure 3 is a flow chart of a hybrid transmission efficiency testing method provided in an embodiment of the present application;

[0057] Figure 4 It is a structural schematic diagram of an electronic device provided in an embodiment of the present application;

[0058] Among them, 1. hybrid transmission; 2. first input motor; 3. second input motor; 4. first output motor; 5. second output motor. DETAILED DESCRIPTION

[0059] 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.

[0060] 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.

[0061] Please see Figure 1 , Figure 1 A schematic diagram of the structure of a hybrid transmission efficiency test device provided in an embodiment of the present application. The hybrid transmission efficiency test device comprises: a hybrid transmission 1, 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.

[0062] The engine input simulation component is set to simulate the engine, the motor input simulation component is set to simulate the generator, and the wheel end load simulation component is set to simulate the load on the vehicle wheel end, and the hybrid transmission is tested to obtain the series generator route efficiency of the vehicle.

[0063] Specifically, the hybrid transmission is tested by simulating the engine by the engine input simulation component, simulating the drive motor by the motor input simulation component, and simulating the load on the wheel end of the vehicle to obtain the series drive motor route efficiency of the vehicle; the hybrid transmission is tested by simulating the engine by the engine input simulation component, simulating the drive motor by the motor input simulation component, and simulating the load on the wheel end of the vehicle to obtain the parallel route efficiency of the vehicle; the hybrid transmission is tested by simulating the engine by the engine input simulation component, simulating the drive motor by the motor input simulation component, and simulating the load on the wheel end of the vehicle to obtain the direct drive power generation efficiency of the vehicle.

[0064] As described above, the embodiment of the present application simulates the transmission driving the vehicle by setting an engine input simulation component, a motor input simulation component, and a wheel-end load simulation component, tests the hybrid transmission to obtain the transmission efficiency, and implements a separate test of the efficiency of the mechanical transmission part of the hybrid transmission. The efficiency of the mechanical part can be refined and tested to improve the test efficiency, while providing 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 the first input motor, the second input motor, the first output motor and the second output motor respectively. For example, Figure 1 The first input motor simulates the engine, and the second input motor simulates the generator, which is a connection diagram showing the motor connection relationship of the series generator route; for example, Figure 2 A connection diagram is shown in which the first input motor simulates the engine and the second input motor simulates the drive motor, that is, the motor connection relationship of the series drive motor route, the parallel route, and the direct drive power generation route is shown.

[0067] It can be understood that the first input motor, the second input motor, the first output motor and the second output motor are set to simulate the engine, the generator and the drive motor, so as to drive the vehicle, and the torque sensor is set to measure the torque and speed, and test the efficiency under different routes, so as to provide a reference for improving the efficiency of the hybrid transmission assembly.

[0068] Optionally, the transmission efficiency is an important indicator for evaluating the performance of the transmission. The transmission efficiency test is to conduct a systematic test on the transmission components to verify the efficiency and loss of the transmission during the transmission process, so as to evaluate the performance and quality of the transmission. The test results can be directly used for product improvement and optimization to enhance the market competitiveness of the product. In view of the difference between hybrid transmissions and traditional transmissions, in addition to the mechanical transmission part, the internal parts also include generators, drive motors, inverters and other components. By testing the efficiency of the mechanical transmission part separately, the efficiency of the mechanical part can be refined and the efficiency of the mechanical part can be improved in a targeted manner.

[0069] In the second aspect, based on the above embodiment, the embodiment of the present application also provides a hybrid transmission efficiency test method. The hybrid transmission efficiency test method provided by this embodiment specifically includes:

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

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

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

[0073] 400. The hybrid transmission is tested by simulating the engine by the engine input simulation component, simulating the drive motor by the motor input simulation component, and simulating the load on the wheel end of the vehicle by the wheel end load 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, the drive motor stator, and the drive motor rotor inside the hybrid transmission assembly are removed, and only mechanical parts are retained, wherein the mechanical parts include shaft teeth, a clutch, and a lubrication system.

[0077] As mentioned above, the embodiment of the present application conducts a separate test on the efficiency of the mechanical transmission part, which can conduct a refined test on the efficiency of the mechanical part and carry out targeted work to improve the efficiency of the mechanical part.

[0078] As described above, the embodiment of the present application simulates the transmission driving the vehicle by setting an engine input simulation component, a motor input simulation component, and a wheel-end load simulation component, tests the hybrid transmission to obtain the transmission efficiency, and implements a separate test of the efficiency of the mechanical transmission part of the hybrid transmission. The efficiency of the mechanical part can be refined and tested to improve the test efficiency, while providing 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 parts such as the shaft gear, clutch, and lubrication system. The input motor is used to simulate the engine, generator and drive motor. The test includes the efficiency of the series generator route, the series drive motor route, the parallel route, and the direct drive power generation efficiency.

[0080] In some embodiments, the setting of 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 wheel end of the vehicle, testing the hybrid transmission, and obtaining the series generator route efficiency of the vehicle includes:

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

[0082] Testing the hybrid transmission to collect the torque and speed of the first input motor and the torque and speed of the second input motor;

[0083] The efficiency of the series generator route along which the vehicle is traveling is calculated:

[0084]

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

[0086] It can be understood that 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.

[0087] In some embodiments, the hybrid transmission is tested by simulating the engine by the engine input simulation component, simulating the drive motor by the motor input simulation component, and simulating the load on the wheel end of the vehicle by the wheel end load simulation component to obtain the series drive motor route efficiency of the vehicle, including:

[0088] The first input motor is set to simulate an engine, the second input motor is set to simulate a drive motor, and the first output motor and the second output motor are set to simulate the load at the wheel end of the vehicle, the first input motor is set to simulate the engine generating electricity, and the second input motor drives the first output motor and the second output motor to drive the vehicle to travel;

[0089] Testing the hybrid transmission to collect 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;

[0090] The efficiency of the series drive motor route of the vehicle is calculated:

[0091]

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

[0093] It can be understood that 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.

[0094] In some embodiments, the setting of 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 on the vehicle wheel end, testing the hybrid transmission, and obtaining the parallel route efficiency of the vehicle driving includes:

[0095] The first input motor simulates an engine, the second input motor simulates a drive motor, the first output motor and the second output motor both simulate a load at a wheel end of a vehicle, and the first input motor and the second input motor simultaneously drive the first output motor and the second output motor to drive the vehicle to travel;

[0096] Testing the hybrid transmission, collecting 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;

[0097] The parallel route efficiency of vehicle travel is calculated:

[0098]

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

[0100] It can be understood that the efficiency of the parallel 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.

[0101] In some embodiments, the hybrid transmission is tested by simulating the engine by the engine input simulation component, simulating the drive motor by the motor input simulation component, and simulating the load on the wheel end of the vehicle by the wheel end load simulation component to obtain the direct drive power generation efficiency of the vehicle, including:

[0102] The first input motor is configured to simulate an engine, the second input motor is configured to simulate a drive motor, and the first output motor and the second output motor are configured to simulate a load at a wheel end of a vehicle, the first input motor drives the second input motor to simulate driving a 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 to travel;

[0103] Testing the hybrid transmission, collecting 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;

[0104] The direct drive power generation efficiency of the vehicle is calculated:

[0105]

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

[0107] It can be understood that 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.

[0108] 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.

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

[0110] In a third aspect, an embodiment of the present application further provides an electronic device that can integrate the hybrid transmission efficiency testing system provided in an embodiment of the present application. Figure 4 Schematic diagram of the structure of an electronic device provided by an embodiment of the present application. 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 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 hybrid transmission efficiency 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 4 The example of connecting through bus is taken in the following.

[0111] 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, realizes the above-mentioned hybrid transmission efficiency test method.

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

[0113] In a fourth aspect, an embodiment of the present application further provides a computer-readable storage medium, the computer-readable storage medium including 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 hybrid transmission efficiency test method as described above, and can achieve the same beneficial effects.

[0114] Of course, the storage medium containing computer executable instructions provided in an embodiment of the present application, whose computer executable instructions are not limited to the hybrid transmission efficiency testing method described above, can also execute related operations in the hybrid transmission efficiency testing method provided in any embodiment of the present application.

[0115] 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.

[0116] 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.

[0117] 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.

[0118] If the function is implemented in the form of a software function module and sold or used as an independent product, it 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 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 method 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.

[0119] 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.

[0120] 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.

[0121] 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 hybrid transmission efficiency test device, characterized in that: include: 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 the engine, the motor input simulation component is set to simulate the generator, and the wheel end load simulation component is set to simulate the load of the vehicle wheel end, and the hybrid transmission is tested to obtain the series generator route efficiency of the vehicle; The hybrid transmission is tested by simulating the engine by the engine input simulation component, simulating the drive motor by the motor input simulation component, and simulating the load at the wheel end of the vehicle by the wheel end load simulation component, so as to obtain the efficiency of the series drive motor route of the vehicle; The engine input simulation component is set to simulate the engine, the motor input simulation component is set to simulate the drive motor, and the wheel end load simulation component is set to simulate the load of the vehicle wheel end, and the hybrid transmission is tested to obtain the parallel route efficiency of the vehicle; The hybrid transmission is tested by simulating the engine by the engine input simulation component, simulating the drive motor by the motor input simulation component, and simulating the load on the wheel end of the vehicle by the wheel end load simulation component to obtain the direct drive power generation efficiency of the vehicle.

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, the motor input simulation component includes a second input motor 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, 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 hybrid transmission efficiency testing method, applied to the hybrid transmission efficiency testing device as claimed in claim 1 or 2, characterized in that: include: The engine input simulation component is set to simulate the engine, the motor input simulation component is set to simulate the generator, and the wheel end load simulation component is set to simulate the load of the vehicle wheel end, and the hybrid transmission is tested to obtain the series generator route efficiency of the vehicle; The hybrid transmission is tested by simulating the engine by the engine input simulation component, simulating the drive motor by the motor input simulation component, and simulating the load at the wheel end of the vehicle by the wheel end load simulation component, so as to obtain the efficiency of the series drive motor route of the vehicle; The engine input simulation component is set to simulate the engine, the motor input simulation component is set to simulate the drive motor, and the wheel end load simulation component is set to simulate the load of the vehicle wheel end, and the hybrid transmission is tested to obtain the parallel route efficiency of the vehicle; The hybrid transmission is tested by simulating the engine by the engine input simulation component, simulating the drive motor by the motor input simulation component, and simulating the load on the wheel end of the vehicle by the wheel end load simulation component to obtain the direct drive power generation efficiency of the vehicle.

4. The hybrid transmission efficiency testing device according to claim 3, characterized in that: The setting of 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 wheel end of the vehicle, testing the hybrid transmission, and obtaining the series generator route efficiency of the vehicle includes: The first input motor is set to simulate an engine, the second input motor is set to simulate a generator, the first output motor and the second output motor are set to simulate the load of the vehicle wheel end, and the first input motor drives the second input motor to simulate the engine driving the generator to generate electricity; Testing the hybrid transmission to collect the torque and speed of the first input motor and the torque and speed of the second input motor; The efficiency of the series generator route along which the vehicle is traveling is calculated: Among them, T 输入电机1 is the torque of the first input motor, T 输入电机2 is the torque of the second input motor, n 输入电机1 is the speed of the first input motor, n 输入电机2 is the speed of the second input motor.

5. The hybrid transmission efficiency testing device according to claim 3, characterized in that: The hybrid transmission is tested by simulating the engine by the engine input simulation component, simulating the drive motor by the motor input simulation component, and simulating the load at the wheel end of the vehicle by the wheel end load simulation component to obtain the series drive motor route efficiency of the vehicle, including: The first input motor is set to simulate an engine, the second input motor is set to simulate a drive motor, and the first output motor and the second output motor are set to simulate the load at the wheel end of the vehicle, the first input motor is set to simulate the engine generating electricity, and the second input motor drives the first output motor and the second output motor to drive the vehicle to travel; Testing the hybrid transmission to collect 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; The efficiency of the series drive motor route of the vehicle is calculated: Among them, T 输入电机2 is the torque of the second input motor, n 输入电机2 is the speed of the second input motor; T 输出电机1 is the torque of the first output motor, n 输出电机1 is the speed of the first output motor; T 输出电机2 is the torque of the second output motor, n 输出电机2 is the speed of the second output motor.

6. The hybrid transmission efficiency testing device according to claim 3, characterized in that: The setting of 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 on the vehicle wheel end, testing the hybrid transmission, and obtaining the parallel route efficiency of the vehicle includes: The first input motor simulates an engine, the second input motor simulates a drive motor, the first output motor and the second output motor both simulate a load at a wheel end of a vehicle, and the first input motor and the second input motor simultaneously drive the first output motor and the second output motor to drive the vehicle to travel; Testing the hybrid transmission, collecting 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; The parallel route efficiency of vehicle travel is calculated: Among them, T 输入电机1 is the torque of the first input motor, T 输入电机2 is the torque of the second input motor, n 输入电机1 is the speed of the first input motor, n 输入电机2 is the speed of the second input motor; T 输出电机1 is the torque of the first output motor, n 输出电机1 is the speed of the first output motor; T 输出电机2 is the torque of the second output motor, n 输出电机2 is the speed of the second output motor.

7. The hybrid transmission efficiency testing device according to claim 3, characterized in that: The hybrid transmission is tested by simulating the engine by the engine input simulation component, simulating the drive motor by the motor input simulation component, and simulating the load at the wheel end of the vehicle by the wheel end load simulation component to obtain the direct drive power generation efficiency of the vehicle, including: The first input motor is configured to simulate an engine, the second input motor is configured to simulate a drive motor, and the first output motor and the second output motor are configured to simulate a load at a wheel end of a vehicle, the first input motor drives the second input motor to simulate driving a 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 to travel; Testing the hybrid transmission, collecting 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; The direct drive power generation efficiency of the vehicle is calculated: Among them, T 输入电机1 is the torque of the first input motor, T 输入电机2 is the torque of the second input motor, n 输入电机1 is the speed of the first input motor, n 输入电机2 is the speed of the second input motor; T 输出电机1 is the torque of the first output motor, n 输出电机1 is the speed of the first output motor; T 输出电机2 is the torque of the second output motor, n 输出电机2 is the speed of the second output motor.

8. The hybrid transmission efficiency testing method according to claim 3, characterized in that: Also includes: The generator, the drive motor stator, and the drive motor rotor inside the hybrid transmission assembly are removed, and only mechanical parts are retained, wherein the mechanical parts include shaft teeth, a clutch, and a lubrication system.

9. An electronic device, characterized in that: include: A processor, a memory and a bus, wherein the processor is connected to the memory via the bus, and 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 test method as described in any one of claims 3 to 8.

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

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