Driving device, torque monitoring method, storage medium, and vehicle

Abstract

The present disclosure provides a driving device, a torque monitoring method, a storage medium, and a vehicle. The driving device comprises a half shaft, a power battery assembly, a driving motor, a control module, a differential module, a first measurement module, a second measurement module, and a processing module. The first measurement module is separately connected to the power battery assembly and the control module, and can measure an electrical parameter of a driving electrical signal input by the power battery assembly to the control module; the second measurement module is connected to the differential module and can measure a driving rotation speed input by the differential module to the half shaft; and the processing module is connected to the first measurement module and the second measurement module and can determine, on the basis of the electrical parameter of the driving electrical signal and the driving rotation speed, the actual torque output by the driving motor in a target state.

Description

Drive device, torque monitoring method, storage medium, and vehicle Technical Field

[0001] The present disclosure relates to the field of output torque monitoring, and in particular to a drive device and a torque monitoring method, a storage medium, and a vehicle. Background Art

[0002] The drive unit is the core system of a vehicle, providing its power source. To ensure safe operation, the drive motor is typically controlled to provide output torque that matches the vehicle's driving conditions. Therefore, accurate monitoring of the drive motor's output torque is crucial.

[0003] Dual-motor vehicles have attracted widespread attention due to their flexible operating state adjustments and improved braking energy recovery efficiency. However, the flexible operating conditions of the two motors in a dual-motor vehicle also make monitoring the output torque of these vehicles difficult, especially in their unique operating states. For example, if one motor is in driving mode and the other in generating mode, it's impossible to accurately determine the output torque of the drive motor, making it difficult to effectively control the vehicle's driving conditions.

[0004] Summary of the Invention

[0005] In view of this, the present disclosure provides a driving device, a torque monitoring method, a storage medium, and a vehicle.

[0006] In a first aspect, an embodiment of the present disclosure provides a driving device, comprising:

[0007] half shaft;

[0008] Power battery pack;

[0009] The driving motor includes: a first motor and a second motor;

[0010] A control module connected to the power battery pack and the drive motor;

[0011] A differential module is connected to the drive motor and the half shaft respectively;

[0012] a first detection module connected between the power battery pack and the control module, and configured to detect electrical parameters of a driving electrical signal input from the power battery pack to the control module;

[0013] a second detection module connected to the differential module and configured to detect a driving speed input from the differential module to the half-shaft;

[0014] A processing module is connected to the first detection module and the second detection module, and is configured to determine the actual torque output by the drive motor in a target state based on the electrical parameters of the drive electrical signal and the drive speed; wherein the drive motor is in a target state when the first motor is in a drive mode and the second motor is in a power generation mode.

[0015] Optionally, the driving device further includes:

[0016] The torque monitoring unit is connected to the processing module and is configured to obtain the actual torque determined by the processing module and select a target operating condition corresponding to the actual torque based on the actual torque.

[0017] Optionally, the processing module is connected to the control module and is configured to obtain a torque command input by the control module to the drive motor; the torque command is used to control the drive motor to output a target torque to the differential module;

[0018] The processing module is further configured to determine the torque loss of the drive motor in the target state according to the target torque and the actual torque output by the drive motor.

[0019] Optionally, the control module is configured to:

[0020] obtaining a torque loss of the driving motor in the target state;

[0021] Based on the torque loss, operating parameters of the drive motor are adjusted.

[0022] In a second aspect, an embodiment of the present disclosure provides a torque monitoring method applied to a drive device, the method comprising:

[0023] When it is detected that the drive motor is in a target state, the first detection module is used to detect the electrical parameters of the drive electrical signal input from the power battery pack to the control module; wherein the drive motor is in the target state when the first motor is in a drive mode and the second motor is in a power generation mode;

[0024] Utilizing the second detection module to detect the driving speed input from the differential module to the half-shaft;

[0025] The actual torque output by the drive motor in the target state is determined according to the electrical parameters of the drive electrical signal and the drive speed.

[0026] Optionally, the method further includes:

[0027] The actual torque output by the drive motor in the target state is acquired by using a torque monitoring unit, and a target operating condition corresponding to the actual torque is selected based on the actual torque.

[0028] Optionally, the method further includes:

[0029] Using a processing module to obtain a torque instruction input from the control module to the drive motor;

[0030] determining a torque loss of the drive motor under the target state according to the target torque indicated by the torque command and the actual torque output by the drive motor;

[0031] The control module adjusts the operating parameters of the drive motor based on the torque loss.

[0032] Optionally, determining the actual torque output by the drive motor in the target state according to the electrical parameters of the drive electrical signal and the drive speed includes:

[0033] Determining the target power corresponding to the driving electrical signal according to the current value and voltage value of the driving electrical signal;

[0034] The actual torque output by the drive motor in a target state is determined according to the target power and the drive speed.

[0035] In a third aspect, an embodiment of the present disclosure provides a computer-readable storage medium for storing a computer program, wherein the computer program includes instructions for implementing any torque monitoring method in the second aspect.

[0036] In a fourth aspect, an embodiment of the present disclosure provides a vehicle comprising any drive device according to the first aspect.

[0037] In the disclosed embodiment, the drive device includes: a half-shaft; a power battery pack; a drive motor; a control module; a differential module; a first detection module; a second detection module; and a processing module. The first detection module is connected to the power battery pack and the control module, respectively, and is capable of detecting the electrical parameters of the drive electrical signal input from the power battery pack to the control module; the second detection module is connected to the differential module and is capable of detecting the drive speed input from the differential module to the half-shaft; and the processing module is connected to the first detection module and the second detection module, and is capable of determining the actual torque output by the drive motor in a target state based on the electrical parameters of the drive electrical signal and the drive speed.

[0038] In this way, the embodiment of the present disclosure utilizes the electrical parameters of the driving electrical signal detected by the first detection module and the driving speed detected by the second detection module to accurately determine the actual torque output by the driving motor, thereby ensuring the accuracy of the torque monitoring of the driving motor when the first motor is in the driving mode and the second motor is in the power generation mode, so that in the subsequent processing process, the operation of the driving device can be accurately controlled according to the torque actually output by the driving motor to the differential module, which is conducive to the effective supervision of the driving state of the vehicle equipped with the driving device. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] FIG1 is a structural schematic diagram 1 of a driving device according to an exemplary embodiment;

[0040] FIG2 is a second structural schematic diagram of a driving device according to an exemplary embodiment;

[0041] FIG3 is a flowchart diagram 1 of a torque monitoring method according to an exemplary embodiment;

[0042] FIG4 is a second flow chart of a torque monitoring method according to an exemplary embodiment;

[0043] FIG5 is a third flow chart of a torque monitoring method according to an exemplary embodiment. DETAILED DESCRIPTION

[0044] To make the purpose, technical solutions and advantages of the embodiments of the present disclosure more clear, the specific technical solutions of the invention will be further described in detail below in conjunction with the drawings in the embodiments of the present disclosure. The following embodiments are used to illustrate the present disclosure, but are not intended to limit the scope of the present disclosure.

[0045] The present disclosure provides a driving device. FIG1 is a structural diagram of a driving device according to an exemplary embodiment. As shown in FIG1 , the driving device 100 includes:

[0046] Axle shaft 107;

[0047] Power battery pack 101;

[0048] The driving motor 110 includes a first motor 105 and a second motor 106;

[0049] The control module 104 is connected to the power battery pack 101 and the drive motor 110;

[0050] The differential module 108 is connected to the drive motor 110 and the half shaft 107 respectively;

[0051] a first detection module 102 connected between the power battery pack 101 and the control module 104 and configured to detect electrical parameters of a driving electrical signal input from the power battery pack 101 to the control module 104;

[0052] a second detection module 109 connected to the differential module 108 and configured to detect a driving speed input from the differential module 108 to the half-shaft 107;

[0053] The processing module 103 is connected to the first detection module 102 and the second detection module 109, and is configured to determine the actual torque output by the drive motor 110 in the target state based on the electrical parameters of the drive electrical signal and the drive speed; wherein, the drive motor 110 is in the target state: the first motor 105 is in the driving mode and the second motor 106 is in the power generation mode.

[0054] The drive device 100 shown in the embodiment of the present disclosure can be used in an electric vehicle. The drive device 100 includes: a half shaft 107; a power battery pack 101; a drive motor 110; a control module 104; a differential module 108; a first detection module 104; a second detection module 109 and a processing module 103.

[0055] It should be noted that the half-shaft 107 of the driving device 100 is an important component for driving the wheels to generate power. The half-shaft 107 can transmit the power from the driving motor 110 to the wheels, so that the vehicle can move.

[0056] Here, the half shaft 107 is generally composed of two parts: a bearing and a transmission shaft.

[0057] Bearings, located at each end of the axle, support and secure the axle. They enable flexible rotation between the axle and the wheel, reducing friction and improving transmission efficiency. They also withstand the forces of gravity and impact during driving, ensuring the stability and safety of the axle.

[0058] The drive shaft transmits the rotational power of the drive motor 110 to the wheels, thereby driving the vehicle. The drive shaft typically consists of multiple joints, each of which enables the axles to rotate at different angles. This allows the axles to adjust their angles according to the wheel's rotation angle when the wheel turns, ensuring transmission efficiency and driving stability.

[0059] It is understood that the power battery pack 101 refers to the battery assembly used to power an electric vehicle. It is a key component of an electric vehicle and is directly related to the vehicle's range, performance, and safety. The main function of the power battery pack is to store and release electrical energy, converting it into mechanical energy to drive the vehicle's drive motor 110.

[0060] Specifically, the power battery pack 101 converts energy from natural sources, such as external power sources, solar energy, or wind energy, into electrical energy and stores it within the vehicle. During vehicle operation, the power battery pack 101 converts this stored electrical energy into mechanical energy, providing energy for the vehicle and enabling long-term travel and high-speed movement.

[0061] In addition to storing and releasing electrical energy, the power battery pack 101 can also regulate voltage and current to ensure the normal operation of the electric vehicle. During the vehicle's driving process, the power battery pack 101 will control the voltage and current to ensure the performance and safety of the vehicle.

[0062] It should be explained that the differential module 108 is generally composed of a differential gear, a differential gear shaft, planetary gears, planetary gear shafts, and a differential module housing, etc. Among them, the differential module gear is the core component of the differential module, consisting of a pair of meshing gears.

[0063] The differential module 108 enables the left and right drive wheels of the vehicle to rotate freely at different speeds through the engagement of the differential gears when turning, so that the vehicle has better handling performance and stability and reduces side slip and skidding when turning.

[0064] In some embodiments, when the vehicle is traveling in a straight line, the differential module 108 controls the left and right drive wheels to rotate at the same speed; when the vehicle is turning, the differential gear of the differential module 108 automatically adjusts the speed difference between the two drive wheels so that the speed difference between the two drive wheels is balanced, thereby achieving stable driving of the vehicle.

[0065] It should be noted that in order to control and distribute the power energy of the power battery pack 101, the control module 104 is set between the power battery pack 101 and the drive motor 110 in the embodiment of the present disclosure, so as to monitor the output torque of the drive motor 110 and realize precise control and management of the vehicle power output and driving process.

[0066] It's important to note that the drive motor 110, as the vehicle's core module, is crucial to achieving the vehicle's performance. During driving, the drive motor 110 must generate sufficient torque to propel the vehicle forward. Furthermore, the torque output by the drive motor 110 directly impacts the vehicle's acceleration and operating efficiency.

[0067] Therefore, the output torque of the drive motor 110 determines the driving condition of the vehicle. In order to better control the vehicle, it is necessary to monitor the output torque of the drive motor 110 so as to adjust the output torque of the drive motor 110 according to different conditions.

[0068] In the disclosed embodiment, the drive motor 110 may include a first motor 105 and a second motor 106. The first motor 105 and the second motor 106 have two operating modes: a drive mode and a generator mode. When in the drive mode, the motors drive the differential module 108, which in turn rotates the axle shafts 107, thereby driving the vehicle. When in the generator mode, the motors charge the power battery pack 101.

[0069] When the drive motor 110 is in the target state, that is, the first motor 105 is in the driving mode and the second motor 106 is in the generating mode, the first motor 105 rotates in a first direction in the driving mode and the second motor 106 rotates in a second direction in the generating mode. It is worth noting that the first direction and the second direction are opposite.

[0070] In this case, the second motor 106 may be dragged by the first motor 105 to reverse, thereby causing a certain loss to the output torque of the first motor 105 (i.e., the output torque of the drive motor 110), so that the actual torque output by the drive motor 110 is less than the target torque that the drive motor 110 should output.

[0071] In this case, in order to more accurately determine the actual torque output by the drive motor 110 , the embodiment of the present disclosure may set a first detection module 102 , a second detection module 109 and a processing module 103 in the drive device 100 .

[0072] The first detection module 102 is provided between the power battery pack 101 and the control module 104 , so that the first detection module 102 is used to detect the electrical parameters of the driving electrical signal input from the power battery pack 101 to the control module 104 .

[0073] Here, the electrical parameter may be a voltage value, a current value, a power or a frequency, etc., which is not limited in the present embodiment. The energy supply provided by the power battery pack to the drive motor 110 can be determined based on the electrical parameter of the drive electrical signal.

[0074] In some embodiments, the first detection module 102 may be a current detection module configured to detect the current value of the driving electrical signal input from the power battery pack 101 to the control module 104 .

[0075] It is understood that the drive speed input from the differential module 108 to the half-shaft 107 is related to the actual torque output by the drive motor 110. Therefore, to determine the actual torque, the second detection module 109 can be connected to the differential module 108 to detect the drive speed input from the differential module 108 to the half-shaft 107.

[0076] It should be noted that in order to calculate the actual torque output by the drive motor 110, the processing module 103 can be set between the first detection module 102 and the second detection module 109, and the processing module 103 is connected to the first detection module 102 and the second detection module 109, and is configured to obtain the electrical parameters of the driving electrical signal detected by the first detection module 102 and the driving speed detected by the second detection module 109; thereby, the actual torque of the drive motor 110 is determined based on the electrical parameters of the driving electrical signal and the driving speed.

[0077] In the disclosed embodiment, the drive device 100 includes: a half-shaft 107; a power battery pack 101; a drive motor 110; a control module 104; a differential module 108; a first detection module 102; a second detection module 109 and a processing module 103. The first detection module 102 is connected to the power battery pack 101 and the control module 104, respectively, and is capable of detecting the electrical parameters of the drive electrical signal input from the power battery pack 101 to the control module 104; the second detection module 109 is connected to the differential module 108 and is capable of detecting the drive speed input from the differential module 108 to the half-shaft 107; and the processing module 103 is connected to the first detection module 102 and the second detection module 109, and is capable of determining the actual torque output by the drive motor 110 in the target state based on the electrical parameters of the drive electrical signal and the drive speed.

[0078] In this way, the embodiment of the present disclosure utilizes the electrical parameters of the driving electrical signal detected by the first detection module 102 and the driving speed detected by the second detection module 109 to accurately determine the actual torque output by the driving motor 110, thereby ensuring the accuracy of the torque monitoring of the driving motor 110 when the first motor 105 is in the driving mode and the second motor 106 is in the power generation mode, so that in the subsequent processing process, the operation of the driving device 100 can be accurately controlled according to the torque actually output by the driving motor 110 to the differential module 108, which is conducive to achieving effective supervision of the driving state of the vehicle equipped with the driving device 100.

[0079] Optionally, the driving device 100 further includes:

[0080] The torque monitoring unit 111 is connected to the processing module 103 and is configured to obtain the actual torque determined by the processing module 103 and select a target operating condition corresponding to the actual torque based on the actual torque.

[0081] It should be noted that after determining the actual torque output by the drive motor 110 , a target operating condition corresponding to the actual torque should be selected to improve the vehicle's operability and the user's driving experience.

[0082] Therefore, in the embodiment of the present disclosure, a torque monitoring unit 111 is provided to be connected to the processing module 103, so that the actual torque output by the drive motor 110 calculated by the processing module 103 is sent to the torque monitoring unit 111, and then the torque monitoring unit 111 is used to select the target working condition corresponding to the actual torque based on the actual torque.

[0083] It is understandable that when a vehicle faces complex driving conditions, its power requirements become more diverse and precise. Therefore, the actual torque output by the drive motor 110 is positively correlated with the complexity of the target operating condition. When the actual torque output by the drive motor 110 is high, a target operating condition with a higher complexity can be selected; when the actual torque output by the drive motor 110 is low, a target operating condition with a lower complexity can be selected.

[0084] Here, the target working condition with higher complexity may be complex road conditions such as mud, sand, and rocks, and the road condition with lower complexity may be a well-paved road surface such as a highway, which is not limited in the embodiments of the present disclosure.

[0085] In the disclosed embodiment, the drive device 100 further includes a torque monitoring unit 111, which is connected to the processing module 103 and configured to obtain the actual torque determined by the processing module 103 and select a target operating condition corresponding to the actual torque based on the actual torque. In this manner, the disclosed embodiment can accurately detect the actual output torque of the drive motor 110 and select a target operating condition corresponding to the actual torque, thereby improving vehicle comfort and operability, and enhancing the user's driving experience.

[0086] Optionally, the processing module 103 is connected to the control module 104 and is configured to obtain a torque command input from the control module 104 to the drive motor 110; the torque command is used to control the drive motor 110 to output a target torque to the differential module 108;

[0087] The processing module 103 is further configured to determine the torque loss of the drive motor 110 in the target state according to the target torque and the actual torque output by the drive motor 110 .

[0088] It should be noted that in order to calculate the torque consumed by the second motor 106 being dragged in reverse, the processing module 103 can be connected to the control module 104, so that the torque instruction input by the control module 104 to the drive motor 110 is sent to the processing module 103. The processing module 103 calculates the torque loss of the drive motor 110 in the target state based on the torque instruction and the actual torque output by the drive motor 110.

[0089] Here, the torque command is a command to control the drive motor 110 to output a target torque to the differential module 108. The target torque indicated by the torque command can be understood as the torque value that the drive motor 110 should output; that is, the torque value output by the first motor 105 when the second motor 106 rotates in the opposite direction without the first motor 105 pulling it.

[0090] The processing module 103 may determine the torque loss of the drive motor 110 in the target state according to the difference between the target torque and the actual torque output by the drive motor 110 .

[0091] In some embodiments, the control module 104 may include a motor transmission control unit (MTCU) 104b and a power distribution control unit (PDCU) 104a.

[0092] The MTCU is configured to automatically adjust gear combinations and motor output based on changes in vehicle speed and acceleration, ensuring smoother and more precise vehicle shifting. The PDCU collects and processes signals from the drive motor, gearbox, braking system, and other mechanical components, enabling precise control and management of vehicle power output and driving progress.

[0093] For example, Figure 2 is a second schematic diagram of the structure of a drive device according to an exemplary embodiment. As shown in Figure 2, after the processing module 103, the control module 104, and the torque monitoring unit 111 are connected, the power domain control unit 104a in the control module 104 sends a torque command to the processing module 103. The processing module 103 calculates the torque loss based on the target torque indicated by the torque command and the calculated actual torque output by the drive motor 110.

[0094] The processing module 103 then sends the torque loss to the motor-gearbox control unit 104 b , which then transmits the torque loss to the power domain control unit 104 a , and finally the power domain control unit 104 a sends the torque loss to the torque monitoring unit 111 .

[0095] In the disclosed embodiment, processing module 103 is connected to control module 104 and can obtain the torque command input from control module 104 to drive motor 110. Upon obtaining the torque command, processing module 103 determines the torque loss of drive motor 110 under the target state based on the target torque indicated by the torque command and the actual torque output by drive motor 110. This communication between processing module 103 and control module 104 facilitates improved accuracy in calculating torque loss, thereby laying the foundation for subsequent adjustment of the operating parameters of drive motor 110.

[0096] Optionally, the control module 104 is configured to:

[0097] Obtaining a torque loss of the drive motor 110 in the target state;

[0098] Based on the torque loss, operating parameters of the drive motor 110 are adjusted.

[0099] It should be noted that, in order to reduce the torque loss of the drive motor 110 , the control module 104 can also receive the torque loss of the drive motor 110 in the target state sent by the processing module 103 , and then adjust the operating parameters of the drive motor 110 based on the torque loss.

[0100] Here, the operating parameters of the drive motor 110 may include operating power, operating current, and operating speed, etc., which are not limited in the embodiment of the present disclosure.

[0101] In some embodiments, after the control module 104 obtains the torque loss of the drive motor 110 in the target state, the operating speed of the drive motor 110 may be adjusted based on the torque loss, thereby reducing the loss of the output torque of the drive motor 110 .

[0102] It is worth noting that when the second motor 106 is dragged to reverse, the higher the reverse speed, the greater the torque loss of the drive motor 110. The operating speed of the first motor 105 and / or the second motor 106 can be adjusted to reduce the speed at which the second motor 106 is dragged to reverse, or to reduce the situation where the second motor 106 is dragged to reverse by the first motor 105, thereby reducing the torque loss of the drive motor 110.

[0103] In other embodiments, the control module 104 may adjust the operating power and / or operating current of the drive motor 110 based on the torque loss to compensate for the torque loss.

[0104] For example, the required output torque corresponding to the current operating condition can be determined based on the current operating condition of the vehicle; the control module increases the operating current of the drive motor based on the torque loss, so that the actual torque of the drive motor can be close to or equal to the required output torque corresponding to the current operating condition.

[0105] In the embodiment of the present disclosure, the torque loss of the drive motor 110 in the target state can be obtained through the control module 104; based on the torque loss, the operating parameters of the drive motor 110 are adjusted, so that the operating parameters of the drive motor 110 can be adjusted in time, which is beneficial to reducing the loss torque of the drive motor 110 and improving the user's driving experience.

[0106] The present disclosure further provides a torque monitoring method. FIG3 is a flow chart of a torque monitoring method according to an exemplary embodiment, as shown in FIG3 .

[0107] In step 301, when it is detected that the drive motor is in a target state, the first detection module is used to detect the electrical parameters of the drive electrical signal input from the power battery pack to the control module; wherein the drive motor is in the target state when the first motor is in a driving mode and the second motor is in a generating mode;

[0108] In step 302, a second detection module is used to detect the driving speed input from the differential module to the half-shaft;

[0109] In step 303 , the actual torque output by the drive motor in the target state is determined according to the electrical parameters of the drive electrical signal and the drive speed.

[0110] The torque monitoring method shown in the embodiment of the present disclosure can be applied to the driving device shown in one or more of the above technical solutions.

[0111] It's important to note that the drive motor, as the core module of a vehicle, is crucial to achieving its performance. During driving, the drive motor must generate sufficient torque to propel the vehicle forward. Furthermore, the torque output by the drive motor directly impacts the vehicle's acceleration and operating efficiency.

[0112] Therefore, the output torque of the drive motor determines the driving condition of the vehicle. In order to better control the vehicle, it is necessary to monitor the output torque of the drive motor so as to adjust the output torque of the drive motor according to different working conditions.

[0113] Consider that if there are two motors in the vehicle, when the first motor is in driving mode and the second motor is in generating mode, the second motor will be dragged by the first motor to reverse, causing a certain loss in the output torque of the first motor, which is not conducive to meeting the vehicle operation requirements.

[0114] Therefore, the embodiment of the present disclosure determines the actual torque output by the drive motor based on the drive motor being in the target state, that is, when the first motor is in the driving mode and the second motor is in the power generation mode, so as to adjust the actual torque output in time.

[0115] In the embodiment of the present disclosure, when it is detected that the drive motor is in the target state, the first detection module is used to detect the electrical parameters of the drive electrical signal input from the power battery pack to the control module.

[0116] Here, the electrical parameter may be a voltage value, a current value, a power or a frequency parameter, which is not limited in the present embodiment. The energy supply provided by the power battery pack to the drive motor can be determined based on the electrical parameter of the drive electrical signal.

[0117] In some embodiments, the first detection module may be a current detection module configured to detect a current value of a driving electrical signal input from the power battery pack to the control module.

[0118] It is understood that the drive speed input from the differential module to the half-shafts is related to the actual torque output by the drive motor. Therefore, in order to determine the actual torque, the second detection module can be used to detect the drive speed input from the differential module to the half-shafts.

[0119] It should be noted that in order to calculate the actual torque output by the drive motor, the first detection module can be used to send the detected electrical parameters of the drive electrical signal to the processing module, and the second detection module can also be used to send the detected drive speed to the processing module. After the processing module obtains the data of the electrical parameters of the drive electrical signal and the drive speed, the actual torque can be calculated.

[0120] The embodiment of the present disclosure detects that the drive motor is in a target state by using a first detection module to detect the electrical parameters of the drive electrical signal input from the power battery pack to the control module; then uses a second detection module to detect the drive speed input to the half-shaft by the differential module; and finally determines the actual torque output by the drive motor in the target state based on the electrical parameters of the drive electrical signal and the drive speed.

[0121] In this way, the embodiment of the present disclosure utilizes the electrical parameters of the driving electrical signal detected by the first detection module and the driving speed detected by the second detection module to accurately determine the actual torque output by the driving motor, thereby ensuring the accuracy of the torque monitoring of the driving motor when the first motor is in the driving mode and the second motor is in the power generation mode, so that in the subsequent processing process, the operation of the driving device can be accurately controlled according to the torque actually output by the driving motor to the differential module, which is conducive to the effective supervision of the driving state of the vehicle equipped with the driving device.

[0122] Optionally, FIG4 is a second flow chart of a torque monitoring method according to an exemplary embodiment. As shown in FIG4 , the method further includes:

[0123] In step 304 , the actual torque output by the drive motor in the target state is acquired by using a torque monitoring unit, and a target operating condition corresponding to the actual torque is selected based on the actual torque.

[0124] It should be noted that after determining the actual torque output by the drive motor, a target operating condition corresponding to the actual torque should be selected to improve the vehicle's operability and the user's driving experience.

[0125] Therefore, in the embodiment of the present disclosure, the torque monitoring unit is used to obtain the actual torque output by the drive motor in the target state, and the target operating condition corresponding to the actual torque is selected based on the actual torque.

[0126] The disclosed embodiment can accurately detect the actual output torque of the drive motor and select the target operating condition corresponding to the actual torque, thereby helping to improve the comfort and operability of the vehicle and enhance the user's driving experience.

[0127] Optionally, the method further includes:

[0128] Using a processing module to obtain a torque instruction input from the control module to the drive motor;

[0129] determining a torque loss of the drive motor under the target state according to the target torque indicated by the torque command and the actual torque output by the drive motor;

[0130] The control module adjusts the operating parameters of the drive motor based on the torque loss.

[0131] It should be explained that in order to calculate the torque consumed by the second motor being dragged in reverse, the torque instruction input to the drive motor by the control module can be sent to the processing module, and the processing module calculates the torque loss of the drive motor in the target state based on the torque instruction and the actual torque output by the drive motor.

[0132] Here, the torque command is a command that controls the drive motor to output a target torque to the differential module. The target torque indicated by the torque command can be understood as the torque value that the drive motor should output; that is, the torque value that the first motor would output if the second motor were rotating in the opposite direction without the first motor's pull.

[0133] It is understandable that the processing module can determine the torque loss of the drive motor in the target state according to the difference between the target torque and the actual torque output by the drive motor.

[0134] It should be noted that after obtaining the torque loss of the drive motor, in order to further reduce the torque loss of the drive motor, the operating parameters of the drive motor can be adjusted through the control module.

[0135] Here, the operating parameters of the driving motor may include operating power, operating current, and operating speed, etc., which are not limited in the embodiments of the present disclosure.

[0136] In some embodiments, after the control module obtains the torque loss of the drive motor in the target state, the operating speed of the drive motor can be adjusted based on the torque loss, thereby reducing the loss of the output torque of the drive motor.

[0137] It is worth noting that when the second motor is dragged to reverse, the higher the reverse speed, the greater the torque loss of the drive motor. The operating speed of the first motor and / or the second motor can be adjusted to reduce the speed at which the second motor is dragged to reverse, or to reduce the situation where the second motor is dragged to reverse by the first motor, thereby reducing the torque loss of the drive motor.

[0138] In the embodiment of the present disclosure, a processing module is utilized to obtain a torque instruction inputted to the drive motor by the control module; then, the torque loss of the drive motor in the target state is determined based on the target torque indicated by the torque instruction and the actual torque outputted by the drive motor; finally, the control module adjusts the operating parameters of the drive motor based on the torque loss, thereby further reducing the loss torque of the drive motor, ensuring the operability of the vehicle, and improving the user's driving experience.

[0139] Optionally, FIG5 is a flow chart diagram of a torque monitoring method according to an exemplary embodiment. As shown in FIG5 , determining the actual torque output by the drive motor in the target state based on the electrical parameters of the drive electrical signal and the drive speed includes:

[0140] In step 401, a target power corresponding to the driving electrical signal is determined based on the current value and voltage value of the driving electrical signal;

[0141] In step 402 , the actual torque output by the drive motor in the target state is determined according to the target power and the drive speed.

[0142] It should be noted that in order to determine the actual torque output by the drive motor in the target state, it is necessary to first determine the target power corresponding to the drive electrical signal.

[0143] It is understood that the target power corresponding to the drive electrical signal is determined based on the current value and voltage value of the drive electrical signal. After obtaining the target power, the actual torque output by the drive motor in the target state can be determined based on the drive speed and the target power.

[0144] For example, the formula for calculating the torque output by the drive motor may be as follows:

[0145] P=U*I (1)

[0146] P=N*V (2)

[0147] In formula (1), P represents the target power corresponding to the driving electrical signal, U represents the voltage value of the driving electrical signal, and I represents the current value of the driving electrical signal.

[0148] In formula (2), P represents the target power corresponding to the driving electrical signal, N represents the actual torque output by the driving motor, and V represents the driving speed of the driving motor.

[0149] In the embodiment of the present disclosure, the target power corresponding to the driving electrical signal is first determined based on the current value and voltage value of the driving electrical signal; then, the actual torque output by the driving motor in the target state is determined based on the target power and the driving speed, thereby improving the accuracy of calculating the actual torque output by the driving motor.

[0150] The present disclosure also provides a non-transitory computer-readable storage medium. When instructions in the storage medium are executed by a processor of a network processing device, the network processing device is enabled to perform a torque monitoring method, the method comprising:

[0151] When it is detected that the drive motor is in a target state, the first detection module is used to detect the electrical parameters of the drive electrical signal input from the power battery pack to the control module; wherein the drive motor is in the target state when the first motor is in a drive mode and the second motor is in a power generation mode;

[0152] Utilizing the second detection module to detect the driving speed input from the differential module to the half-shaft;

[0153] The actual torque output by the drive motor in the target state is determined according to the electrical parameters of the drive electrical signal and the drive speed.

[0154] The present disclosure also provides a vehicle, including a driving device 100, wherein the driving device 100 includes:

[0155] Axle shaft 107;

[0156] Power battery pack 101;

[0157] The driving motor 110 includes a first motor 105 and a second motor 106;

[0158] The control module 104 is connected to the power battery pack 101 and the drive motor 110;

[0159] The differential module 108 is connected to the drive motor 110 and the half shaft 107 respectively;

[0160] a first detection module 102 connected between the power battery pack 101 and the control module 104 and configured to detect electrical parameters of a driving electrical signal input from the power battery pack 101 to the control module 104;

[0161] a second detection module 109 connected to the differential module 108 and configured to detect a driving speed input from the differential module 108 to the half-shaft 107;

[0162] The processing module 103 is connected to the first detection module 102 and the second detection module 109, and is configured to determine the actual torque output by the drive motor 110 in the target state based on the electrical parameters of the drive electrical signal and the drive speed; wherein, the drive motor 110 is in the target state: the first motor 105 is in the driving mode and the second motor 106 is in the power generation mode.

[0163] In the disclosed embodiment, the drive device 100 includes: a half-shaft 107; a power battery pack 101; a drive motor 110; a control module 104; a differential module 108; a first detection module 102; a second detection module 109; and a processing module 103. The first detection module 102 is connected to the power battery pack 101 and the control module 104, respectively, and is capable of detecting the electrical parameters of the drive electrical signal input from the power battery pack 101 to the control module 104; the second detection module 109 is connected to the differential module 108 and is capable of detecting the drive speed input from the differential module 108 to the half-shaft 107; and the processing module 103 is connected to the first detection module 102 and the second detection module 109, and is capable of determining the actual torque output by the drive motor 110 in a target state based on the electrical parameters of the drive electrical signal and the drive speed.

[0164] In this way, the embodiment of the present disclosure utilizes the electrical parameters of the driving electrical signal detected by the first detection module 102 and the driving speed detected by the second detection module 109 to accurately determine the actual torque output by the driving motor 110, thereby ensuring the accuracy of the torque monitoring of the driving motor 110 when the first motor 105 is in the driving mode and the second motor 106 is in the power generation mode, so that in the subsequent processing process, the operation of the driving device 100 can be accurately controlled according to the torque actually output by the driving motor 110 to the differential module 108, which is conducive to achieving effective supervision of the driving state of the vehicle equipped with the driving device 100.

[0165] The driving device, torque monitoring method, storage medium, and vehicle described in the embodiments of the present disclosure are only taken as examples of the embodiments of the present disclosure, but are not limited to these. As long as they involve the driving device and torque monitoring method, they are all within the protection scope of the present disclosure.

[0166] It should be understood that “one embodiment” or “an embodiment” mentioned throughout the specification means that specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present disclosure. Therefore, “in one embodiment” or “in an embodiment” appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in the various embodiments of the present disclosure, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present disclosure. The serial numbers of the embodiments of the present disclosure are for description only and do not represent the advantages and disadvantages of the embodiments.

[0167] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0168] The above description is merely an embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A driving device, characterized in that: The driving device comprises: Axle shaft; Power battery pack; The driving motor comprises: a first motor and a second motor; A control module connected to the power battery pack and the drive motor; A differential module is connected to the drive motor and the half shaft respectively; a first detection module, connected between the power battery pack and the control module, and configured to detect electrical parameters of a driving electrical signal input from the power battery pack to the control module; a second detection module connected to the differential module and configured to detect a driving speed input from the differential module to the half-shaft; A processing module is connected to the first detection module and the second detection module, and is configured to determine the actual torque output by the drive motor in a target state based on the electrical parameters of the drive electrical signal and the drive speed; wherein the drive motor is in a target state when the first motor is in a drive mode and the second motor is in a power generation mode.

2. The device according to claim 1, characterized in that The driving device further comprises: The torque monitoring unit is connected to the processing module and is configured to obtain the actual torque determined by the processing module and select a target operating condition corresponding to the actual torque based on the actual torque.

3. The device according to claim 1, characterized in that The processing module is connected to the control module and is configured to obtain a torque command input by the control module to the drive motor; the torque command is used to control the drive motor to output a target torque to the differential module; The processing module is further configured to determine the torque loss of the drive motor under the target state according to the target torque and the actual torque output by the drive motor.

4. The device according to claim 3, characterized in that The control module is configured as follows: Acquiring a torque loss of the driving motor under the target state; Based on the torque loss, operating parameters of the drive motor are adjusted.

5. A torque monitoring method, characterized in that: Applied to the driving device according to any one of claims 1 to 4, the method comprises: When it is detected that the drive motor is in a target state, the first detection module is used to detect the electrical parameters of the drive electrical signal input from the power battery pack to the control module; wherein the drive motor is in the target state when: the first motor is in a drive mode and the second motor is in a power generation mode; Using the second detection module to detect the driving speed input from the differential module to the half shaft; The actual torque output by the drive motor in the target state is determined according to the electrical parameters of the drive electrical signal and the drive rotation speed.

6. The method according to claim 5, characterized in that The method further comprises: The actual torque output by the drive motor in the target state is acquired by using a torque monitoring unit, and a target operating condition corresponding to the actual torque is selected based on the actual torque.

7. The method according to claim 5, characterized in that The method further comprises: Using a processing module to obtain a torque command input from the control module to the drive motor; According to the target torque indicated by the torque command and the actual torque output by the drive motor, determine Torque loss of the drive motor in the target state; The control module adjusts the operating parameters of the drive motor based on the torque loss.

8. The method according to claim 5, characterized in that The step of determining the actual torque output by the drive motor in the target state according to the electrical parameters of the drive electrical signal and the drive speed includes: Determine the target power corresponding to the driving electrical signal according to the current value and voltage value of the driving electrical signal; The actual torque output by the drive motor in a target state is determined according to the target power and the drive speed.

9. A readable storage medium, characterized in that: The device is used to store a computer program, wherein the computer program comprises instructions for implementing the method according to any one of claims 5 to 8.

10. A vehicle comprising the driving device according to any one of claims 1 to 4.

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