Method, device and equipment for monitoring hybrid transmission and readable storage medium

Abstract

The invention provides a method, device and equipment for monitoring a hybrid transmission and a readable storage medium, and the method comprises the steps that a first action feedback signal of a hybrid transmission assembly and a second action feedback signal of a frequency converter are obtained, the first action feedback signal comprises at least one of clutch pressure, electromagnetic valve current, shifting fork position and motor torque, and the second action feedback signal comprises at least one of motor rotating speed, input motor torque and rotating speed of a dynamometer; the first action feedback signal and the second action feedback signal are subjected to fusion analysis processing, the working mode of the hybrid transmission is obtained, and the working mode comprises series connection, parallel connection, direct drive or power generation; and monitoring a power transmission line of the hybrid transmission in the working mode and visually displaying the power transmission line through display equipment. By means of the method, the effects of safe control and rapid monitoring of the hybrid transmission can be achieved.

Description

Technical Field

[0001] The present application relates to the field of automobile monitoring, and in particular, to a method, device, equipment and readable storage medium for monitoring a hybrid transmission. Background Art

[0002] The functions of the hybrid transmission test control and monitoring system include: giving the hybrid transmission test parameters through the test control system, and sending speed, torque and other control instructions to the hybrid transmission when the parameters meet the conditions; sending instructions through the host computer and TCU (control unit) communication to achieve clutch control and gear shifting of the hybrid transmission; the action signals of the above instructions are transmitted to the control system. In this way, the loading status of the hybrid transmission can be monitored during the test.

[0003] However, the hybrid transmission has a complex structure and diverse working modes. The current test control and monitoring system can only simply send control commands and receive action feedback signals, and the control of the transmission TCU requires a separate host computer and control system. In this state, the hybrid transmission needs to receive control commands from multiple systems, and the control method is cumbersome. Improper command sending order can easily lead to test interruption and damage to the hybrid transmission.

[0004] Therefore, how to achieve safe control and rapid monitoring of hybrid transmissions is a technical problem that needs to be solved. Summary of the invention

[0005] The purpose of the embodiments of the present application is to provide a method for monitoring a hybrid transmission. Through the technical solutions of the embodiments of the present application, the effects of safe control and rapid monitoring of the hybrid transmission can be achieved.

[0006] In a first aspect, an embodiment of the present application provides a method for monitoring a hybrid transmission, which is applied to a host computer measurement and control system, including obtaining a first action feedback signal of a hybrid transmission assembly and a second action feedback signal of a frequency converter, wherein the first action feedback signal includes: at least one of clutch pressure, solenoid valve current, shift fork position and motor torque, and the second action feedback signal includes: at least one of motor speed, input motor torque and dynamometer speed; fusing and analyzing the first action feedback signal and the second action feedback signal to obtain a working mode of the hybrid transmission, wherein the working modes include: series, parallel, direct drive or power generation; monitoring the power transmission route of the hybrid transmission in the working mode and visually displaying it through a display device.

[0007] In the above-mentioned embodiments of the present application, the upper computer measurement and control system can quickly analyze the operating mode of the hybrid transmission through the signals fed back by the hybrid transmission assembly and the inverter, and then accurately monitor the power transmission route of the hybrid transmission under the corresponding operating mode, thereby achieving the effect of safe control and rapid monitoring of the hybrid transmission.

[0008] In some embodiments, before obtaining the first action feedback signal of the hybrid transmission assembly and the second action feedback signal of the inverter, it also includes: establishing a remote information control database file of the hybrid transmission; and establishing the first action feedback signal, the second action feedback signal, the microcontroller unit feedback signal and the host computer measurement and control system on the same controller local area network bus through the remote information control database file.

[0009] In the above-mentioned embodiments of the present application, the first action feedback signal, the second action feedback signal, the microcontroller unit feedback signal and the host computer measurement and control system are established on the same controller local area network bus, so that the control functions of the motor and the coupler of the hybrid transmission can be integrated into the same host computer, thereby simplifying the operating steps to improve convenience, increasing the degree of test automation and reducing test costs.

[0010] In some embodiments, obtaining a first action feedback signal of a hybrid transmission assembly and a second action feedback signal of a frequency converter includes: collecting relevant signals through an encoder and a sensor built into the hybrid transmission, wherein the relevant signals include a speed signal and a torque signal; and inputting the relevant signals into the frequency converter to obtain a second action feedback signal.

[0011] In the above-mentioned embodiments of the present application, hybrid transmission related signals are collected through encoders and sensors, and the signals can be processed through a frequency converter to obtain a second action feedback signal for accurately monitoring the hybrid transmission.

[0012] In some embodiments, obtaining a first action feedback signal of a hybrid transmission assembly and a second action feedback signal of a frequency converter includes: sending a control instruction to an input motor and a dynamometer through the frequency converter, wherein the control instruction includes a transfer control instruction and / or a torque control instruction; controlling the motor to provide driving force for the hybrid transmission and the dynamometer to simulate a road load through the control instruction, and obtaining the first action feedback signal and the second action feedback signal.

[0013] In the above embodiment of the present application, by controlling the driving of the motor and simulating the road load, a first action feedback signal of the hybrid transmission assembly and a second action feedback signal of the inverter can be obtained on a real load road, making the result more realistic.

[0014] In some embodiments, after monitoring the power transmission route of the hybrid transmission in the working mode and visually displaying it through a display device, it also includes: establishing communication with the coupler of the hybrid transmission and receiving a coupler feedback signal sent by the coupler, wherein the coupler feedback signal includes: at least one of clutch pressure, gear signal, clutch speed difference and shift oil circuit pressure; controlling the clutch and gear switching of the coupler through the coupler feedback signal.

[0015] In the above-mentioned embodiments of the present application, the coupler of the hybrid transmission can be monitored and controlled in real time through the connection between the coupler and the host computer measurement and control system.

[0016] In some embodiments, the first action feedback signal and the second action feedback signal are fused and analyzed to obtain the working mode of the hybrid transmission, including: monitoring the output speed of the input motor, the output speed of the dynamometer, the clutch pressure is less than a preset value, the shift fork is in the middle position, and the motor output torque to determine that the hybrid transmission is in the series working mode; monitoring the output torque of the input motor, the output speed of the dynamometer, the clutch pressure is greater than or equal to the preset value, the shift fork position changes, and the motor output torque to determine that the hybrid transmission is in the parallel working mode; monitoring the output torque of the input motor, the output speed of the dynamometer, the clutch pressure is greater than or equal to the preset value, the shift fork position changes, and the motor has no torque output to determine that the hybrid transmission is in the direct drive working mode; monitoring the output speed of the input motor, the dynamometer has no speed, the clutch pressure is less than the preset value, the shift fork is in the middle position, a part of the motor outputs torque, and another part of the motor has no torque output to determine that the hybrid transmission is in the power generation working mode.

[0017] In the above-mentioned embodiments of the present application, the current operating mode of the hybrid transmission can be accurately determined through the output data and current status of the motor, clutch and gear.

[0018] In some embodiments, after monitoring the power transmission route of the hybrid transmission in the working mode and visually displaying it through a display device, it also includes: when the working mode is direct drive or parallel, activating the clutch control function and controlling and monitoring the clutch.

[0019] In the above embodiments of the present application, when the working mode is direct drive or parallel, the clutch can be accurately monitored and controlled by activating the control function of the clutch.

[0020] In a second aspect, an embodiment of the present application provides a device for monitoring a hybrid transmission, comprising:

[0021] an acquisition module, configured to acquire a first action feedback signal of the hybrid transmission assembly and a second action feedback signal of the frequency converter, wherein the first action feedback signal includes: at least one of clutch pressure, solenoid valve current, shift fork position and motor torque, and the second action feedback signal includes: at least one of motor speed, input motor torque and dynamometer speed;

[0022] A processing module, used for fusing and analyzing the first action feedback signal and the second action feedback signal to obtain a working mode of the hybrid transmission, wherein the working modes include: series connection, parallel connection, direct drive or power generation;

[0023] The monitoring module is used to monitor the power transmission route of the hybrid transmission in the working mode and visualize it through a display device.

[0024] Optionally, the device further comprises:

[0025] An establishing module, used for the acquisition module to establish a remote information control database file of the hybrid transmission before acquiring the first action feedback signal of the hybrid transmission assembly and the second action feedback signal of the inverter;

[0026] The first action feedback signal, the second action feedback signal, the microcontroller unit feedback signal and the upper computer measurement and control system are established on the same controller local area network bus through the remote information control database file.

[0027] Optionally, the acquisition module is specifically used to:

[0028] Collect relevant signals through encoders and sensors built into the hybrid transmission, where the relevant signals include speed signals and torque signals;

[0029] The relevant signal is input into the frequency converter to obtain the second action feedback signal.

[0030] Optionally, the acquisition module is specifically used to:

[0031] The second acquisition module sends a control instruction to the input motor and the dynamometer through the frequency converter, wherein the control instruction includes a transfer control instruction and / or a torque control instruction;

[0032] The motor is controlled by control instructions to provide driving force for the hybrid transmission and a dynamometer to simulate a road load, and a first action feedback signal and a second action feedback signal are obtained.

[0033] Optionally, the device further comprises:

[0034] a control module, configured to establish communication with a coupler of the hybrid transmission and receive a coupler feedback signal sent by the coupler after the monitoring module monitors the power transmission route of the hybrid transmission in the working mode and displays it visually through a display device, wherein the coupler feedback signal includes at least one of: clutch pressure, gear position signal, clutch speed difference and shift oil circuit pressure;

[0035] The clutch and gear shifting of the coupler are controlled by the coupler feedback signal.

[0036] Optionally, the processing module is specifically used for:

[0037] Monitor the input motor output speed, dynamometer output speed, clutch pressure less than a preset value, shift fork neutral position, motor output torque, and determine that the hybrid transmission is in series operation mode;

[0038] Monitor the input motor output torque, dynamometer output speed, clutch pressure greater than or equal to a preset value, shift fork position change, motor output torque, and determine that the hybrid transmission is in a parallel working mode;

[0039] Monitor the input motor output torque, dynamometer output speed, clutch pressure greater than or equal to a preset value, shift fork position changes, and motor no torque output to determine that the hybrid transmission is in direct drive mode;

[0040] Monitor the output speed of the input motor, no speed on the dynamometer, clutch pressure less than a preset value, the shift fork in the middle position, one part of the motor outputting torque, and another part of the motor having no torque output, to determine that the hybrid transmission is in the power generation mode.

[0041] Optionally, the device further comprises:

[0042] The second control module is used to activate the clutch control function and control and monitor the clutch when the working mode is direct drive or parallel, after the monitoring module monitors the power transmission route of the hybrid transmission in the working mode and visualizes it through the display device.

[0043] In a third aspect, an embodiment of the present application provides an electronic device, comprising a processor and a memory, wherein the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the steps in the method provided in the first aspect are performed.

[0044] In a fourth aspect, an embodiment of the present application provides a readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps in the method provided in the first aspect are performed.

[0045] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or be understood by practicing the embodiments of the present application. The purpose and other advantages of the present application can be realized and obtained by the structures specifically pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] 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.

[0047] Figure 1 A flow chart of a method for monitoring a hybrid transmission provided in an embodiment of the present application;

[0048] Figure 2 A schematic diagram of a local area network bus provided in an embodiment of the present application;

[0049] Figure 3 A schematic block diagram of a device for monitoring a hybrid transmission provided in an embodiment of the present application;

[0050] Figure 4 A schematic diagram of the structure of a device for monitoring a hybrid transmission provided in an embodiment of the present application. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application usually described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0052] 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.

[0053] First, some terms involved in the embodiments of the present application are explained to facilitate understanding by those skilled in the art.

[0054] The TCU (Telematics Control Unit) remote information control unit terminal device can transmit GPS location information, driving speed, vehicle information and other information back to the system platform through wireless transmission. Users can monitor and manage the vehicle through computers and mobile phones.

[0055] A microcontroller unit (MCU), also known as a single-chip microcomputer or a single-chip microcomputer, appropriately reduces the frequency and specifications of the central processing unit (CPU), and integrates peripheral interfaces such as memory, timer, USB, A / D conversion, UART, PLC, DMA, and even LCD driver circuits on a single chip to form a chip-level computer, which can perform different combination controls for different application scenarios.

[0056] VCU, or Vehicle Control Unit, is a crucial control unit in new energy vehicles, responsible for the implementation of vehicle control decisions.

[0057] The present application is applied to the scenario of hybrid transmission test control and monitoring. The specific scenario is to intelligently judge the working mode of the hybrid transmission based on the hybrid transmission action feedback signal and the bench dynamometer inverter feedback signal, and at the same time determine the power transmission route that can represent the hybrid transmission in the current mode.

[0058] The functions of the hybrid transmission test control and monitoring system include: giving the hybrid transmission test parameters through the test control system, and sending speed, torque and other control instructions to the hybrid transmission when the parameters meet the conditions; sending instructions through the host computer and TCU (control unit) to realize the clutch control and gear shift of the hybrid transmission; the action signal of the above instructions is transmitted to the control system. In this way, the loading state of the hybrid transmission can be monitored during the test. However, the structure of the hybrid transmission is complex and the working mode is diverse; the current test control and monitoring system can only simply send control instructions and receive action feedback signals, and the control of the transmission TCU requires a separate host computer and control system; in this state, the hybrid transmission needs to receive control instructions from multiple systems, the control method is cumbersome, and improper instruction sending sequence can easily lead to test interruption and damage to the hybrid transmission.

[0059] To this end, the present application obtains the first action feedback signal of the hybrid transmission assembly and the second action feedback signal of the frequency converter, wherein the first action feedback signal includes: at least one of clutch pressure, solenoid valve current, shift fork position and motor torque, and the second action feedback signal includes: at least one of motor speed, input motor torque and dynamometer speed; the first action feedback signal and the second action feedback signal are fused and analyzed to obtain the working mode of the hybrid transmission, wherein the working mode includes: series connection, parallel connection, direct drive or power generation; the power transmission route of the hybrid transmission under the working mode is monitored and visualized through a display device. In the above embodiment of the present application, the upper computer measurement and control system can quickly analyze the working mode of the hybrid transmission through the signals fed back by the hybrid transmission assembly and the frequency converter, and then accurately monitor the power transmission route of the hybrid transmission under the corresponding working mode, so as to achieve the effect of safe control and rapid monitoring of the hybrid transmission.

[0060] In the embodiment of the present application, the execution entity may be a hybrid transmission monitoring device in a hybrid transmission monitoring system. In actual applications, the hybrid transmission monitoring device may be an electronic device such as a terminal device and a server, which is not limited here.

[0061] Combine the following Figure 1 The method for monitoring a hybrid transmission according to an embodiment of the present application is described in detail.

[0062] Please see Figure 1 , Figure 1 A flow chart of a method for monitoring a hybrid transmission provided in an embodiment of the present application is applied to a host computer measurement and control system, such as Figure 1 The method of monitoring a hybrid transmission is shown to include:

[0063] Step 110: Obtain a first action feedback signal of the hybrid transmission assembly and a second action feedback signal of the inverter.

[0064] The first action feedback signal includes at least one of clutch pressure, solenoid valve current, shift fork position and motor torque, and the second action feedback signal includes at least one of motor speed, input motor torque and dynamometer speed. The hybrid transmission may be a hybrid transmission of an automobile.

[0065] In some embodiments of the present application, obtaining a first action feedback signal of a hybrid transmission assembly and a second action feedback signal of a frequency converter includes: sending control instructions to an input motor and a dynamometer through the frequency converter, wherein the control instructions include transfer control instructions and / or torque control instructions; controlling the motor to provide driving force for the hybrid transmission and the dynamometer to simulate road load through the control instructions, and obtaining the first action feedback signal and the second action feedback signal.

[0066] In the above process, the present application can obtain a first action feedback signal of the hybrid transmission assembly and a second action feedback signal of the inverter on a real load road by controlling the drive of the motor and simulating the road load, making the result more realistic.

[0067] There may be multiple motors and dynamometers. For example, the host computer measurement and control system sends control instructions to the input motor and two dynamometers through a frequency converter. The input motor is used to simulate the actual engine of the car and provide driving force for the hybrid transmission. The input motor has two control modes: speed and torque. The dynamometer is used to simulate road loads to simulate driving conditions. Usually, it only has a speed control mode. The speed or torque of the input motor and dynamometer is fed back to the host computer measurement and control system through an encoder and a torque analyzer to realize the control and monitoring of the hybrid transmission drive and load device signals.

[0068] Optionally, when the upper computer measurement and control system controls the DC power supply, high voltage is supplied to the motor controller (MCU). After the high voltage condition is met, the measurement and control system sends an enable signal to the two motors through the MCU and receives feedback. If the feedback is normal, a drive control signal is sent to the motor to realize the drive control of the click.

[0069] In some embodiments of the present application, before obtaining the first action feedback signal of the hybrid transmission assembly and the second action feedback signal of the inverter, Figure 1 The method shown also includes: establishing a remote information control database file of the hybrid transmission; establishing the first action feedback signal, the second action feedback signal, the micro control unit feedback signal and the host computer measurement and control system on the same controller local area network bus through the remote information control database file.

[0070] In the above process, the first action feedback signal, the second action feedback signal, the microcontroller unit feedback signal and the host computer measurement and control system are established on the same controller local area network bus, so that the control functions of the motor and coupler of the hybrid transmission can be integrated into the same host computer, simplifying the operating steps to improve convenience, increase the degree of test automation, and reduce test costs.

[0071] Specifically, you can Figure 2 The system control LAN bus schematic diagram shown is described in detail.

[0072] Please see Figure 2 , Figure 2 A schematic diagram of a local area network bus provided in an embodiment of the present application, such as Figure 2 The local area network (CAN) bus shown includes:

[0073] The first action feedback signal, the second action feedback signal, the microcontroller unit feedback signal and the host computer measurement and control system.

[0074] The first action feedback signal (TCU signal) includes clutch pressure, solenoid valve current, shift fork position and dynamometer speed difference. The second feedback signal (VCU signal) includes: input motor speed, input motor torque and dynamometer speed, etc. The microcontroller unit feedback signal (MCU signal) includes the speed and torque of multiple motors, for example, the speed and torque of motor 1 and the speed and torque of motor 2. The host computer measurement and control system can execute Figure 1 The method shown.

[0075] In some embodiments of the present application, obtaining a first action feedback signal of a hybrid transmission assembly and a second action feedback signal of a frequency converter includes: collecting relevant signals through an encoder and a sensor built into the hybrid transmission, wherein the relevant signals include a speed signal and a torque signal; and inputting the relevant signals into the frequency converter to obtain a second action feedback signal.

[0076] In the above process, the present application collects hybrid transmission related signals through encoders and sensors, and can process the signals through a frequency converter to obtain a second action feedback signal for accurately monitoring the hybrid transmission.

[0077] Step 120: Perform fusion analysis on the first action feedback signal and the second action feedback signal to obtain the working mode of the hybrid transmission.

[0078] Among them, the working modes include: series connection, parallel connection, direct drive or power generation.

[0079] In some embodiments of the present application, the first action feedback signal and the second action feedback signal are fused and analyzed to obtain the working mode of the hybrid transmission, including: monitoring the output speed of the input motor, the output speed of the dynamometer, the clutch pressure is less than a preset value, the shift fork is in the middle position, and the motor output torque to determine that the hybrid transmission is in the series working mode; monitoring the output torque of the input motor, the output speed of the dynamometer, the clutch pressure is greater than or equal to the preset value, the shift fork position changes, and the motor output torque to determine that the hybrid transmission is in the parallel working mode; monitoring the output torque of the input motor, the output speed of the dynamometer, the clutch pressure is greater than or equal to the preset value, the shift fork position changes, and the motor has no torque output to determine that the hybrid transmission is in the direct drive working mode; monitoring the output speed of the input motor, the dynamometer has no speed, the clutch pressure is less than the preset value, the shift fork is in the middle position, a part of the motor outputs torque, and another part of the motor has no torque output to determine that the hybrid transmission is in the power generation working mode.

[0080] In the above process, the present application can accurately determine the current operating mode of the hybrid transmission through the output data and current status of the motor, clutch and gear.

[0081] Among them, the preset value can be set according to requirements.

[0082] Step 130: Monitor the power transmission route of the hybrid transmission in the working mode and visualize it through a display device.

[0083] In some embodiments of the present application, after monitoring the power transmission route of the hybrid transmission in the working mode and visually displaying it through a display device, Figure 1 The method shown also includes: establishing communication with a coupler of a hybrid transmission and receiving a coupler feedback signal sent by the coupler, wherein the coupler feedback signal includes: at least one of clutch pressure, gear signal, clutch speed difference and shift oil circuit pressure; controlling the clutch and gear switching of the coupler through the coupler feedback signal.

[0084] In the above process, the present application can monitor and control the coupler in real time through the connection between the coupler of the hybrid transmission and the host computer measurement and control system.

[0085] Among them, the upper computer measurement and control system establishes communication with the hybrid transmission coupler part through the TCU. The working status of the coupler can be obtained through sensor signals such as the shift fork position, shift solenoid valve current, and oil circuit pressure. However, due to the independence of the TCU database file, the sensor signal is usually not directly transmitted to the measurement and control system through the TCU. A separate upper computer is required to control the TCU to send instructions to the coupler.

[0086] In some embodiments of the present application, after monitoring the power transmission route of the hybrid transmission in the working mode and visually displaying it through a display device, Figure 1 The method shown also includes: when the working mode is direct drive or parallel, activating the clutch control function and controlling and monitoring the clutch.

[0087] In the above process, when the working mode is direct drive or parallel, the clutch can be accurately monitored and controlled by activating the control function of the clutch.

[0088] Among them, when the working mode is direct drive or parallel, the clutch control function is activated to control and monitor the clutch, including: when the hybrid transmission is in direct drive or parallel working condition, the input motor and dynamometer speed instructions are given by the upper computer measurement and control system. After the input motor reaches idle speed, the upper computer measurement and control system can send a shift instruction through the TCU. After the shift is completed, the feedback signal is received by the measurement and control system. At this time, the clutch control function is activated, but it should be noted that before engaging the clutch, the measurement and control system needs to determine whether the engagement operation can be performed based on the speed difference between the input motor and the dynamometer. The engagement speed difference range setting can be set according to the hybrid transmission capacity; when it is determined that the engagement is allowed, the measurement and control system sends an instruction to the solenoid valve of the coupler hydraulic system through the TCU to engage the clutch; after the clutch is engaged, the measurement and control system again determines the synchronization of the input and output speeds. After it is determined that there is no problem, the input motor torque loading function will be activated. At this point, the measurement and control system can realize the control and monitoring function of the coupler shift clutch through the TCU.

[0089] In the above Figure 1 In the process shown, the present application obtains the first action feedback signal of the hybrid transmission assembly and the second action feedback signal of the frequency converter, wherein the first action feedback signal includes: at least one of clutch pressure, solenoid valve current, shift fork position and motor torque, and the second action feedback signal includes: at least one of motor speed, input motor torque and dynamometer speed; the first action feedback signal and the second action feedback signal are fused and analyzed to obtain the working mode of the hybrid transmission, wherein the working mode includes: series connection, parallel connection, direct drive or power generation; the power transmission route of the hybrid transmission in the working mode is monitored and visualized through a display device. In the above embodiment of the present application, the upper computer measurement and control system can quickly analyze the working mode of the hybrid transmission through the signals fed back by the hybrid transmission assembly and the frequency converter, and then accurately monitor the power transmission route of the hybrid transmission in the corresponding working mode, so as to achieve the effect of safe control and rapid monitoring of the hybrid transmission.

[0090] Previous article Figure 1 A method for monitoring a hybrid transmission is described below. Figure 3-Figure 4 An apparatus for monitoring a hybrid transmission is described.

[0091] Please refer to Figure 3 , is a schematic block diagram of a device 300 for monitoring a hybrid transmission provided in an embodiment of the present application. The device 300 may be a module, program segment or code on an electronic device. The device 300 is similar to the above Figure 1 The method embodiment corresponds to and can be executed Figure 1 The various steps involved in the method embodiment and the specific functions of the device 300 can be found in the description below. To avoid repetition, the detailed description is appropriately omitted here.

[0092] Optionally, the device 300 includes:

[0093] An acquisition module 310 is used to acquire a first action feedback signal of the hybrid transmission assembly and a second action feedback signal of the inverter, wherein the first action feedback signal includes: at least one of clutch pressure, solenoid valve current, shift fork position and motor torque, and the second action feedback signal includes: at least one of motor speed, input motor torque and dynamometer speed;

[0094] The processing module 320 is used to perform fusion analysis on the first action feedback signal and the second action feedback signal to obtain the working mode of the hybrid transmission, wherein the working mode includes: series connection, parallel connection, direct drive or power generation;

[0095] The monitoring module 330 is used to monitor the power transmission route of the hybrid transmission in the working mode and visualize it through a display device.

[0096] Optionally, the device further comprises:

[0097] An establishment module is used for establishing a remote information control database file of the hybrid transmission before the acquisition module acquires the first action feedback signal of the hybrid transmission assembly and the second action feedback signal of the inverter; the first action feedback signal, the second action feedback signal, the micro control unit feedback signal and the upper computer measurement and control system are established on the same controller local area network bus through the remote information control database file.

[0098] Optionally, the acquisition module is specifically used to:

[0099] Relevant signals are collected through encoders and sensors built into the hybrid transmission, wherein the relevant signals include speed signals and torque signals; the relevant signals are input into the frequency converter to obtain a second action feedback signal.

[0100] Optionally, the acquisition module is specifically used to:

[0101] The second acquisition module sends control instructions to the input motor and the dynamometer through the inverter, wherein the control instructions include transfer control instructions and / or torque control instructions; the motor is controlled by the control instructions to provide driving force for the hybrid transmission and the dynamometer simulates the road load, and the first action feedback signal and the second action feedback signal are obtained.

[0102] Optionally, the device further comprises:

[0103] A control module is used for establishing communication with a coupler of the hybrid transmission and receiving a coupler feedback signal sent by the coupler after the monitoring module monitors the power transmission route of the hybrid transmission in the working mode and visually displays it through a display device, wherein the coupler feedback signal includes at least one of: clutch pressure, gear signal, clutch speed difference and shift oil circuit pressure; and controlling the clutch and gear switching of the coupler through the coupler feedback signal.

[0104] Optionally, the processing module is specifically used for:

[0105] Monitor the input motor output speed, dynamometer output speed, clutch pressure less than the preset value, shift fork neutral position, motor output torque, and determine that the hybrid transmission is in the series working mode; monitor the input motor output torque, dynamometer output speed, clutch pressure greater than or equal to the preset value, shift fork position change, motor output torque, and determine that the hybrid transmission is in the parallel working mode; monitor the input motor output torque, dynamometer output speed, clutch pressure greater than or equal to the preset value, shift fork position change, and motor no torque output, and determine that the hybrid transmission is in the direct drive working mode; monitor the input motor output speed, dynamometer no speed, clutch pressure less than the preset value, shift fork neutral position, one part of the motor output torque, and another part of the motor no torque output, and determine that the hybrid transmission is in the power generation working mode.

[0106] Optionally, the device further comprises:

[0107] The second control module is used to activate the clutch control function and control and monitor the clutch when the working mode is direct drive or parallel, after the monitoring module monitors the power transmission route of the hybrid transmission in the working mode and visualizes it through the display device.

[0108] Please refer to Figure 4 4 is a schematic block diagram of a device for monitoring a hybrid transmission provided in an embodiment of the present application. The device may include a memory 410 and a processor 420. Optionally, the device may also include: a communication interface 430 and a communication bus 440. The device is similar to the above Figure 1 The method embodiment corresponds to and can be executed Figure 1 The various steps involved in the method embodiment and the specific functions of the device can be found in the description below.

[0109] Specifically, the memory 410 is used to store computer-readable instructions.

[0110] Processor 420 is used to process the readable instructions stored in the memory and can execute Figure 1 The steps in the method.

[0111] The communication interface 430 is used for signaling or data communication with other node devices, for example, for communication with a server or a terminal, or for communication with other device nodes, but the embodiments of the present application are not limited thereto.

[0112] The communication bus 440 is used to realize direct connection and communication among the above components.

[0113] The communication interface 430 of the device in the embodiment of the present application is used to communicate signals or data with other node devices. The memory 410 can be a high-speed RAM memory or a non-volatile memory, such as at least one disk memory. The memory 410 can also be at least one storage device located away from the aforementioned processor. The memory 410 stores computer-readable instructions. When the computer-readable instructions are executed by the processor 420, the electronic device executes the aforementioned Figure 1 The method process shown. The processor 420 can be used on the device 300 and is used to perform the functions in the present application. Exemplarily, the above-mentioned processor 420 can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and the embodiments of the present application are not limited thereto.

[0114] The embodiment of the present application also provides a readable storage medium, when the computer program is executed by a processor, Figure 1 The method process in the method embodiment shown is executed by the electronic device.

[0115] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the device described above can refer to the corresponding process in the aforementioned method, and will not be described in detail here.

[0116] In summary, the embodiment of the present application provides a method, device, electronic device and readable storage medium for monitoring a hybrid transmission, the method comprising: obtaining a first action feedback signal of a hybrid transmission assembly and a second action feedback signal of a frequency converter, wherein the first action feedback signal comprises: at least one of clutch pressure, solenoid valve current, shift fork position and motor torque, and the second action feedback signal comprises: at least one of motor speed, input motor torque and dynamometer speed; fusing and analyzing the first action feedback signal and the second action feedback signal to obtain a working mode of the hybrid transmission, wherein the working modes comprise: series connection, parallel connection, direct drive or power generation; monitoring the power transmission route of the hybrid transmission in the working mode and visually displaying it through a display device. The effect of safe control and rapid monitoring of the hybrid transmission is achieved.

[0117] 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.

[0118] 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.

[0119] If the functions are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0120] 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.

[0121] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present 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.

[0122] 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 method for monitoring a hybrid transmission, characterized in that: Applied to the host computer measurement and control system, including: Acquire a first action feedback signal of the hybrid transmission assembly and a second action feedback signal of the frequency converter, wherein the first action feedback signal includes: at least one of clutch pressure, solenoid valve current, shift fork position and motor torque, and the second action feedback signal includes: at least one of motor speed, input motor torque and dynamometer speed; Performing fusion and analysis processing on the first action feedback signal and the second action feedback signal to obtain the working mode of the hybrid transmission, wherein the working mode includes: series connection, parallel connection, direct drive or power generation; The power transmission route of the hybrid transmission in the working mode is monitored and visualized through a display device.

2. The method according to claim 1, characterized in that Before obtaining the first action feedback signal of the hybrid transmission assembly and the second action feedback signal of the inverter, the method further includes: Establishing a remote information control database file of the hybrid transmission; The first action feedback signal, the second action feedback signal, the micro control unit feedback signal and the host computer measurement and control system are established on the same controller area network bus through the remote information control database file.

3. The method according to claim 2, characterized in that Acquiring a first action feedback signal of the hybrid transmission assembly and a second action feedback signal of the inverter includes: Collecting relevant signals through encoders and sensors built into the hybrid transmission, wherein the relevant signals include speed signals and torque signals; The related signal is input into the frequency converter to obtain the second action feedback signal.

4. The method according to any one of claims 1 to 3, characterized in that: The obtaining of the first action feedback signal of the hybrid transmission assembly and the second action feedback signal of the inverter includes: Sending control instructions to the input motor and the dynamometer through the frequency converter, wherein the control instructions include transfer control instructions and / or torque control instructions; The motor is controlled by the control instruction to provide driving force for the hybrid transmission and the dynamometer to simulate road load, so as to obtain the first action feedback signal and the second action feedback signal.

5. The method according to any one of claims 1 to 3, characterized in that: After monitoring the power transmission route of the hybrid transmission in the working mode and visually displaying it through a display device, the method further includes: Establishing communication with a coupler of the hybrid transmission and receiving a coupler feedback signal sent by the coupler, wherein the coupler feedback signal includes at least one of: clutch pressure, gear position signal, clutch speed difference, and shift oil circuit pressure; The clutch and gear shifting of the coupler are controlled by the coupler feedback signal.

6. The method according to any one of claims 1 to 3, characterized in that: The fusing and analyzing the first action feedback signal and the second action feedback signal to obtain the working mode of the hybrid transmission includes: monitoring the input motor output speed, the dynamometer output speed, the clutch pressure being less than a preset value, the shift fork neutral position, and the motor output torque to determine that the hybrid transmission is in a series operation mode; Monitoring the output torque of the input motor, the output speed of the dynamometer, the clutch pressure being greater than or equal to the preset value, the shift fork position change, and the motor output torque to determine that the hybrid transmission is in a parallel working mode; Monitoring the output torque of the input motor, the output speed of the dynamometer, the clutch pressure being greater than or equal to the preset value, the shift fork position changing, and the motor having no torque output, and determining that the hybrid transmission is in a direct drive working mode; The output speed of the input motor, no speed on the dynamometer, clutch pressure less than the preset value, the shift fork neutral position, the output torque of one motor, and no torque output of another motor are monitored to determine that the hybrid transmission is in the power generation mode.

7. The method according to any one of claims 1 to 3, characterized in that: After monitoring the power transmission route of the hybrid transmission in the working mode and visually displaying it through a display device, the method further includes: When the working mode is direct drive or parallel, the clutch control function is activated to control and monitor the clutch.

8. A device for monitoring a hybrid transmission, characterized in that: include: an acquisition module, configured to acquire a first action feedback signal of the hybrid transmission assembly and a second action feedback signal of the frequency converter, wherein the first action feedback signal includes at least one of clutch pressure, solenoid valve current, shift fork position, and motor torque, and the second action feedback signal includes at least one of motor speed, input motor torque, and dynamometer speed; a processing module, configured to perform fusion and analysis processing on the first action feedback signal and the second action feedback signal to obtain an operation mode of the hybrid transmission, wherein the operation mode includes: series connection, parallel connection, direct drive or power generation; The monitoring module is used to monitor the power transmission route of the hybrid transmission in the working mode and to display it visually through a display device.

9. An electronic device, characterized in that: include: A memory and a processor, wherein the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the steps in the method according to any one of claims 1 to 7 are executed.

10. A computer-readable storage medium, characterized in that: include: A computer program, when the computer program is run on a computer, causes the computer to execute the method according to any one of claims 1 to 7.

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