Motor system, torque output method, device, storage medium and program product

Abstract

The invention relates to a motor system, a torque output method and device, a storage medium and a program product, and relates to the technical field of new energy automobiles. The system comprises a motor controller and at least one modular motor, the motor controller is used for determining the torque demand corresponding to the at least one modular motor based on the torque distribution coefficient of the at least one modular motor and the total torque demand of the vehicle, and sending the corresponding torque demand to the at least one modular motor; and the modular motors are used for receiving and responding to the torque requirements and outputting respective corresponding torques. Therefore, the power system can adapt to different requirements of different vehicle types or application scenes on the power system.

Description

Technical Field

[0001] The present application relates to the field of new energy vehicle technology, in particular to the field of motor technology, and specifically to a motor system, a torque output method, a device, a storage medium and a program product. Background Art

[0002] With the continuous development of the automobile industry and the increasingly diversified demands of consumers for vehicle performance, the requirements for power systems of different models or application scenarios have also shown significant differences. This difference is mainly reflected in power output characteristics, energy efficiency, system reliability, cost control, and environmental adaptability.

[0003] In the related technology CN20471955U, the two ends of the rotating shaft on the motor body are designed as the output and input ends respectively, and the appearance is adapted to achieve flexible combination of different motor modules and build a diversified power system. The motor also integrates a speed sensor and a control module to achieve intelligent speed monitoring and adjustment.

[0004] Related technology US11870322B2 connects two interconnected motors in a modular manner, using a polygonal shaft and offset power contacts to achieve flexible adjustment of the total power output. The magnets in each motor are magnetically aligned, and the rotor is rotatably mounted on the shaft.

[0005] However, most motor systems in related technologies adopt a unified design standard, which makes it difficult to simultaneously meet these diverse power requirements. Summary of the invention

[0006] The present application provides a motor system, a torque output method, a device, a storage medium and a program product to at least solve the technical problem in the related art that the motor is difficult to simultaneously meet the power requirements of different vehicle models or application scenarios. The technical solution of the present application is as follows:

[0007] According to the first aspect provided by the present application, a motor system is provided, which includes: a motor controller and at least one modular motor; the motor controller is used to determine the torque demand corresponding to each of the at least one modular motor based on the torque distribution coefficient of each of the at least one modular motor and the total torque demand of the vehicle, and send the corresponding torque demand to the at least one modular motor respectively; the modular motor is used to receive and respond to the torque demand and output the corresponding torque.

[0008] According to the above technical means, the present application can modularly design the motor, so that according to the different needs of the vehicle (such as power, torque, space limitations, etc.), the number of modular motors can be increased or reduced to achieve the best performance match. In addition, the motor controller can accurately calculate and allocate the torque requirements of each motor according to the total torque requirements of the vehicle and the characteristics of each modular motor (such as efficiency curve, torque characteristics, etc.). This optimization-based torque distribution strategy helps to maximize overall efficiency and performance. Therefore, the present application can adapt to different vehicle models or application scenarios with different requirements for the power system.

[0009] In one possible embodiment, the motor system also includes: a power supply, and the at least one modular motor receives and responds to the torque demand to output the corresponding torque, including: the power supply, used to transmit electrical energy to the at least one modular motor; the modular motor, used to generate torque based on the torque demand and the electrical energy transmitted by the power supply; the modular motor, used to output torque.

[0010] According to the above technical means, the motor controller in this application can accurately distribute torque according to the total torque demand of the vehicle and the characteristics of the modular motor, ensuring that each motor operates within its optimal working range, thereby improving the overall energy efficiency. In addition, each modular motor has independent operating capabilities. When a motor fails, other motors can continue to work, reducing the risk of overall system failure.

[0011] In one possible embodiment, the modular motor includes a power module and a motor module; the power module is electrically connected to the motor module; the modular motor generates torque based on the torque demand and the electric energy transmitted by the power power supply, including: the power module, which is used to receive the torque demand sent by the motor controller and the electric energy transmitted by the power power supply, and send the torque demand to the motor module; the motor module, which is used to generate torque based on the torque demand and the electric energy transmitted by the power power supply.

[0012] According to the above technical means, the present application can accurately control each module through an independent controller through a modular motor system, and can more reasonably distribute the high power and high torque requirements of the vehicle. This helps to improve the power performance and driving experience of the whole vehicle.

[0013] In one possible embodiment, the at least one modular motor includes a first motor and a second motor; the motor module of the first motor includes: a power output end; the motor module of the second motor includes: a power output end and a power input end; the power output end of the motor module of the first motor is mechanically connected to the power input end of the motor module of the second motor; the power output end of the second motor is mechanically connected to the vehicle, and the modular motor outputs torque, including: the motor module of the first motor, used to output torque to the second motor; the motor module of the second motor, used to receive the torque output by the first motor and generate a target torque; the target torque is the sum of the torque generated by the first motor and the torque generated by the second motor; the motor module of the second motor is used to output the target torque to the vehicle.

[0014] Based on the above-mentioned technical means, the present application can combine the maturity of traditional three-phase motor design and control technology with modular fault-tolerant topology through modular motors, integrating the advantages of the two into one, and reducing the current and power levels that each winding and drive module in the system needs to withstand.

[0015] In one possible embodiment, the power module of the first motor includes an electric energy input terminal; the power module of the second motor includes an electric energy input terminal and an electric energy output terminal; the electric energy input terminal of the second motor is electrically connected to the power supply; the electric energy input terminal of the second motor is electrically connected to the electric energy input terminal of the first motor; the power module receives the electric energy transmitted by the power supply, including: the power supply is used to output electric energy to the first motor and the second motor.

[0016] According to the above technical means, the modular design provided by the present application makes the system easy to expand. If more motors need to be added to meet higher power requirements, additional modular motors and corresponding power modules can be simply added without large-scale transformation of the entire system.

[0017] In one possible embodiment, the power module includes a low-voltage interface; the power module is connected to the motor controller through the low-voltage interface; the motor controller sends corresponding torque requirements to at least one modular motor respectively, including: the motor controller is used to send torque requirements to the modular motor based on the low-voltage interface of the power module.

[0018] According to the above technical means, the design of the low-voltage interface provided by the present application makes the integration of the power module and the motor controller simpler and faster. This modular design not only reduces the complexity of the system, but also improves the scalability of the system. When a new modular motor needs to be added, it is only necessary to connect the new power module to the motor controller through the low-voltage interface, without the need for large-scale transformation of the entire system.

[0019] In one possible approach, the number of modular motors is proportional to the maximum torque of the vehicle.

[0020] According to the second aspect provided by the present application, a torque output method is provided, which is applied to a motor system, including: the system includes: a motor controller and at least one modular motor; the method includes: the motor controller determines the torque demand corresponding to each of the at least one modular motor based on the torque distribution coefficient of each of the at least one modular motor and the total torque demand of the vehicle, and sends the corresponding torque demand to the at least one modular motor respectively; the modular motors receive and respond to the torque demand to output their respective corresponding torques.

[0021] In one possible embodiment, the motor system also includes: a power supply, and the at least one modular motor receives and responds to the torque demand to output the corresponding torque, including: the power supply transmits electrical energy to the at least one modular motor; the modular motor generates torque based on the torque demand and the electrical energy transmitted by the power supply; and the modular motor outputs torque.

[0022] In one possible embodiment, the modular motor includes a power module and a motor module; the power module is electrically connected to the motor module; the modular motor generates torque based on the torque demand and the electric energy transmitted by the power power supply, including: the power module receives the torque demand sent by the motor controller and the electric energy transmitted by the power power supply, and sends the torque demand to the motor module; the motor module generates torque based on the torque demand and the electric energy transmitted by the power power supply.

[0023] In one possible embodiment, the at least one modular motor includes a first motor and a second motor; the motor module of the first motor includes: a power output end; the motor module of the second motor includes: a power output end and a power input end; the power output end of the motor module of the first motor is mechanically connected to the power input end of the motor module of the second motor; the power output end of the second motor is mechanically connected to the vehicle, and the modular motor outputs torque, including: the motor module of the first motor outputs torque to the second motor; the motor module of the second motor receives the torque output by the first motor and generates a target torque; the target torque is the sum of the torque generated by the first motor and the torque generated by the second motor; the motor module of the second motor outputs the target torque to the vehicle.

[0024] In one possible embodiment, the power module of the first motor includes an electric energy input terminal; the power module of the second motor includes an electric energy input terminal and an electric energy output terminal; the electric energy input terminal of the second motor is electrically connected to the power supply; the electric energy input terminal of the second motor is electrically connected to the electric energy input terminal of the first motor; the power module receives the electric energy transmitted by the power supply, including: the power supply outputs electric energy to the first motor and the second motor.

[0025] In one possible embodiment, the power module includes a low-voltage interface; the power module is connected to the motor controller through the low-voltage interface; the motor controller sends corresponding torque requirements to at least one modular motor respectively, including: the motor controller sends torque requirements to the modular motor based on the low-voltage interface of the power module.

[0026] In one possible approach, the number of modular motors is proportional to the maximum torque of the vehicle.

[0027] According to a third aspect provided by the present application, a vehicle is provided, comprising the motor system described in the first aspect.

[0028] According to the fourth aspect provided by the present application, an electronic device is provided, comprising: a processor; a memory for storing processor executable instructions; wherein the processor is configured to execute instructions to implement the method of the above-mentioned first aspect and any possible implementation manner thereof.

[0029] According to the fifth aspect provided by the present application, a computer-readable storage medium is provided. When the instructions in the computer-readable storage medium are executed by a processor of an electronic device, the electronic device is enabled to execute the method in the above-mentioned first aspect and any possible implementation method thereof.

[0030] According to the sixth aspect provided by the present application, a computer program product is provided, the computer program product comprising computer instructions, and when the computer instructions are executed on an electronic device, the electronic device executes the method of the above-mentioned first aspect and any possible implementation manner thereof.

[0031] Therefore, the above technical features of the present application have the following beneficial effects:

[0032] (1) The motor can be designed in a modular way, so that the number of modular motors can be increased or decreased according to the different requirements of the vehicle (such as power, torque, space limitations, etc.) to achieve the best performance match. In addition, the motor controller can accurately calculate and allocate the torque requirement of each motor based on the total torque requirement of the vehicle and the characteristics of each modular motor (such as efficiency curve, torque characteristics, etc.). This optimization-based torque distribution strategy helps to maximize overall efficiency and performance. Therefore, the present application can adapt to different vehicle models or application scenarios with different requirements for the power system.

[0033] (2) The motor controller can accurately distribute torque according to the total torque demand of the vehicle and the characteristics of the modular motors, ensuring that each motor operates within its optimal operating range, thereby improving overall energy efficiency. In addition, each modular motor has independent operating capabilities. When a motor fails, the other motors can continue to work, reducing the risk of overall system failure.

[0034] (3) The modular motor system can precisely control each module through an independent controller, which can more reasonably distribute the vehicle's high power and high torque requirements. This helps to improve the vehicle's power performance and driving experience.

[0035] (4) Modular motors can combine the maturity of traditional three-phase motor design and control technology with modular fault-tolerant topology, integrating the advantages of both and reducing the current and power level that each winding and drive module in the system needs to withstand.

[0036] (5) The modular design makes the system easy to expand. If more motors need to be added to meet higher power requirements, additional modular motors and corresponding power modules can be simply added without large-scale modifications to the entire system.

[0037] (6) The low-voltage interface design provides a simpler and faster integration of the power module and the motor controller. This modular design not only reduces the complexity of the system, but also improves the scalability of the system. When a new modular motor needs to be added, the new power module only needs to be connected to the motor controller through the low-voltage interface, without the need for large-scale modifications to the entire system.

[0038] It should be noted that the technical effects brought about by any implementation method in the second to sixth aspects can refer to the technical effects brought about by the corresponding implementation method in the first aspect, and will not be repeated here.

[0039] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application, and do not constitute an improper limitation on the present application.

[0041] Figure 1 is a schematic diagram of a motor system according to an exemplary embodiment;

[0042] Figure 2 is a schematic diagram of another motor system according to an exemplary embodiment;

[0043] Figure 3 is a schematic diagram of a first motor according to an exemplary embodiment;

[0044] Figure 4 is a schematic diagram of a power module of a first motor according to an exemplary embodiment;

[0045] Figure 5 is a schematic diagram of a second motor according to an exemplary embodiment;

[0046] Figure 6 is a schematic diagram of a power module of a second motor according to an exemplary embodiment;

[0047] Figure 7 is a schematic diagram of another motor system according to an exemplary embodiment;

[0048] Figure 8 is a schematic diagram of another motor system according to an exemplary embodiment;

[0049] Fig. 9 is a schematic diagram of another motor system according to an exemplary embodiment;

[0050] Fig.10 is a schematic diagram showing a torque output method according to an exemplary embodiment;

[0051] Fig.11 is a schematic diagram showing a torque output process according to an exemplary embodiment;

[0052] Fig.12 is a schematic diagram of a motor system with different configurations according to an exemplary embodiment;

[0053] Fig.13 It is a block diagram of an electronic device according to an exemplary embodiment. DETAILED DESCRIPTION

[0054] In order to enable ordinary persons in the art to better understand the technical solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0055] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0056] For ease of understanding, the testing method provided in this application is specifically introduced below with reference to the accompanying drawings.

[0057] In some embodiments, Figure 1 As shown, Figure 1 1 is a schematic diagram showing a motor system according to an exemplary embodiment, the motor system comprising: a motor controller 101 and a modular motor device 102. The modular motor device 102 comprises at least one modular motor.

[0058] Exemplary, combined Figure 1 ,like Figure 2 As shown, Figure 2 A schematic diagram of another motor system. Figure 2 The modular motor device 102 includes three modular motors. Figure 2 The motor system consists of a motor controller, modular motor module 1, modular motor module 2, modular motor module 3, a power supply, a power output, and wiring harness connections and mechanical transmission connections between modules.

[0059] In one possible manner, the motor controller 101 is used to receive the total torque demand of the vehicle, or determine the total torque demand of the vehicle according to the driving behavior of the vehicle driver. The motor controller 101 is also used to determine the torque demand corresponding to each of the at least one modular motor based on the torque distribution coefficient of each of the at least one modular motor and the total torque demand of the vehicle, and send the corresponding torque demand to the at least one modular motor respectively. In this way, the motor controller will distribute the torque demand to the modular motor. The functions that the motor controller 101 can achieve are described in detail below.

[0060] The motor controller 101 can be connected to a power module of at least one modular motor. The power module includes a low voltage interface. The power module is connected to the motor controller 101 via the low voltage interface. The motor controller 101 is used to send a torque demand to the modular motor based on the low voltage interface of the power module.

[0061] Specifically, the motor controller 101 can continuously detect signals from sensors and control instructions to determine the total torque demand of the vehicle. The motor controller 101 can store the respective allocated torques of at least one modular motor. The motor controller 101 can be used to determine the torque demand corresponding to each of the at least one modular motor based on the respective torque allocation coefficient of the at least one modular motor and the total torque demand of the vehicle.

[0062] It can be understood that the torque distribution coefficient refers to a set of proportional values ​​used to determine how much torque each modular motor should output. These coefficients are usually determined based on the performance of the motor, system requirements and control strategy.

[0063] In one possible manner, a staff member may set the torque distribution coefficients of different modular motors connected to the motor controller 101 , and store the coefficients in a storage module of the motor controller 101 .

[0064] In one example, when the number of modular motors connected to the motor controller 101 is two, the torque distribution coefficients of the two modular motors may be 0.4 and 0.6 respectively. The motor controller 101 may distribute torque requirements to the modular motors based on the two torque distribution coefficients of 0.4 and 0.6.

[0065] Alternatively, when the number of modular motors connected to the motor controller 101 is three, the torque distribution coefficients of the three modular motors may be 0.2, 0.4, and 0.4, respectively. The motor controller 101 may distribute torque requirements to the modular motors based on the three torque distribution coefficients of 0.2, 0.4, and 0.4. This application does not impose any specific restrictions on this.

[0066] The functions that can be realized by the motor controller 101 are introduced above.

[0067] The functions that the modular motor device 102 can achieve are described in detail below.

[0068] The modular motor device 102 may include at least one modular motor.

[0069] The modular motors are used to receive and respond to the torque requirements and output their respective corresponding torques, that is, the modular motors can output their respective corresponding torques according to the torque requirements, and the torque output by at least one modular motor is accumulated to obtain the total torque requirement of the vehicle. Since the modular motors are independent of each other, they can each operate in an optimal manner, thereby improving the efficiency and stability of the entire system.

[0070] In a possible manner, the motor system further includes: a power source, the power source is used to transmit electric energy to at least one modular motor. The modular motor is used to generate torque based on torque demand and electric energy transmitted by the power source.

[0071] Specifically, after the modular motor receives the torque demand, the power supply can transmit electrical energy to the modular motor. The power electronics (such as inverters, controllers, etc.) in the modular motor convert this electrical energy into voltage and current suitable for motor operation. The stator of each motor module in the modular motor generates a rotating magnetic field, which interacts with the permanent magnets or conductors in the rotor to generate torque.

[0072] In one possible manner, the modular motor may include a power module and a motor module, and the power module is electrically connected to the motor module. The implementation of the modular motor generating torque based on the torque demand and the electric energy transmitted by the power source can be completed by the power module and the motor module. Among them, the power module is used to receive the torque demand sent by the motor controller and the electric energy transmitted by the power source, and send the torque demand to the motor module; the motor module is used to generate torque based on the torque demand and the electric energy transmitted by the power source.

[0073] Specifically, at least one modular motor may include a first motor and a second motor. Among them, the motor module of the first motor may include: a power output end. The motor module of the second motor may include: a power output end and a power input end. The power output end of the motor module of the first motor may be mechanically connected to the power input end of the motor module of the second motor. The motor module of the first motor can be used to output torque to the second motor. That is, the motor module of the first motor can output torque to the second motor according to the power output end. The motor module of the second motor is used to receive the torque output by the first motor and generate a target torque. That is, the motor module of the second motor can receive the torque output by the first motor according to the power input end and generate a target torque. Among them, the target torque can be the sum of the torque generated by the first motor and the torque generated by the second motor. The motor module of the second motor is used to output the target torque to the vehicle.

[0074] Optionally, the number of the second motors may be multiple. Different second motors may be mechanically connected via a power output terminal and a power input terminal. This application does not impose any specific restrictions on this.

[0075] In one possible manner, the power module of the first motor may include an electric energy input terminal.

[0076] In one example, Figure 3 As shown, Figure 3 Schematic diagram of a first motor. The first motor includes a power module and a motor module. The power module includes a low voltage interface and an electric energy input terminal. The voltage module includes a kinetic energy output terminal. The electric energy input terminal may include a high voltage direct current input positive terminal A_HV+_in and a high voltage direct current input negative terminal A_HV-_in.

[0077] Combination Figure 3 ,like Figure 4 As shown, it is a schematic diagram of a power module of a first motor. The power module of the first motor includes a low-voltage module and a power bridge and a drive. The low-voltage module may include a low-voltage interface. The power module can be connected to the motor controller through the low-voltage interface. The power bridge and the drive may include an electric energy input terminal and a high-voltage three-phase output terminal. The electric energy input terminal may include a high-voltage DC input positive terminal A_HV+_in and a high-voltage DC input negative terminal A_HV-_in. The high-voltage three-phase output terminal may include: A_HV_U, A_HV_V, A_HV_W.

[0078] In a possible manner, the power module of the second motor may include an electric energy input terminal and an electric energy output terminal.

[0079] In one example, Figure 5 As shown, Figure 5 Schematic diagram of a second motor. The second motor includes a power module and a motor module. The power module includes a low voltage interface, an electric energy input terminal and an electric energy output terminal. The voltage module includes a kinetic energy output terminal and a kinetic energy input terminal. The electric energy input terminal may include a high voltage DC input positive terminal B_HV+_in and a high voltage DC input negative terminal B_HV-_in. The electric energy output terminal may include a high voltage DC input positive terminal B_HV+_out and a high voltage DC input negative terminal B_HV-_out.

[0080] Combination Figure 5 ,like Figure 6As shown, it is a schematic diagram of a power module of a second motor. The power module of the second motor includes a low-voltage module and a power bridge and a drive. The low-voltage module may include a low-voltage interface. The power module can be connected to the motor controller through the low-voltage interface. The power bridge and the drive may include an electric energy input terminal, an electric energy output terminal and a high-voltage three-phase output terminal. The electric energy input terminal may include a high-voltage DC input positive terminal A_HV+_in and a high-voltage DC input negative terminal A_HV-_in. The electric energy output terminal may include a high-voltage DC input positive terminal B_HV+_out and a high-voltage DC input negative terminal B_HV-_out. The high-voltage three-phase output terminal may include: B_HV_U, B_HV_V, B_HV_W.

[0081] In the case where the number of at least one modular motor is multiple, the power input terminal of the second motor can be electrically connected to the power supply. The power input terminal of the second motor can be electrically connected to the power input terminal of the first motor. The power supply is used to output power to the first motor and the second motor. That is, the power supply, the first motor and the second motor can be connected in series so that the power supply outputs power to the first motor and the second motor.

[0082] When the number of modular motors is one, the power input terminal of the first motor may be electrically connected to the power supply, which is used to output power to the first motor.

[0083] In one example, Figure 7 , which is a schematic diagram of yet another motor system. Figure 7 The motor system includes: a first motor, a motor controller, a power supply and a power output. The power input terminal of the first motor can be electrically connected to the power supply. The power supply can output power to the first motor. The first motor can generate torque according to the torque demand sent by the motor controller.

[0084] like Figure 8 , which is a schematic diagram of yet another motor system. Figure 8 The motor system in the embodiment includes: a first motor, a second motor, a motor controller, a power supply and a power output. The power input terminal of the second motor can be electrically connected to the power supply. The power output terminal of the second motor can be electrically connected to the power input terminal of the first motor. The power supply can output power to the first motor and the second motor. The first motor and the second motor can generate torque according to the torque demand sent by the motor controller.

[0085] like Fig. 9 , which is a schematic diagram of yet another motor system. Fig. 9The motor system in the embodiment includes: a first motor, a second motor A, a second motor B, a motor controller, a power supply and a power output. The power input terminal of the second motor A can be electrically connected to the power supply. The power output terminal of the second motor A can be electrically connected to the power input terminal of the first motor B. The power output terminal of the second motor B can be electrically connected to the power input terminal of the first motor. The first motor can be mechanically connected to the second motor B. The second motor B can be mechanically connected to the second motor A. The power supply can output electric energy to the first motor and the second motor. The first motor and the second motor can generate torque according to the torque demand sent by the motor controller.

[0086] In one possible approach, the number of modular motors is proportional to the maximum torque of the vehicle.

[0087] It should be pointed out that Figure 1 , Figure 2 , Figure 7 , Figure 8 , Fig. 9 The structure shown in the figure does not constitute a limitation on the motor system, except Figure 1 , Figure 2 , Figure 7 , Figure 8 , Fig. 9 In addition to the components shown, the motor system may include more or fewer components than shown, or combine certain components, or arrange the components differently, for example, Figure 1 , Figure 2 , Figure 7 , Figure 8 , Fig. 9 In addition to the components shown, the motor system may also include further second motors.

[0088] Based on the above technical solution, the present application can modularly design the motor, so that according to the different needs of the vehicle (such as power, torque, space limitations, etc.), the number of modular motors can be increased or reduced to achieve the best performance match. In addition, the motor controller can accurately calculate and allocate the torque demand of each motor according to the total torque demand of the vehicle and the characteristics of each modular motor (such as efficiency curve, torque characteristics, etc.). This optimization-based torque distribution strategy helps to maximize overall efficiency and performance. Therefore, the present application can adapt to different vehicle models or application scenarios with different requirements for the power system.

[0089] In some embodiments, Fig.10 As shown, Fig.10 A schematic diagram of a torque output method provided in the present application. The torque output method comprises the following steps: S201-S202.

[0090] S201. The motor controller determines the torque demand corresponding to each of the at least one modular motor based on the torque distribution coefficient of each of the at least one modular motor and the total torque demand of the vehicle, and sends the corresponding torque demand to the at least one modular motor respectively.

[0091] In one possible approach, the motor controller can receive instructions for the vehicle's total torque demand and continuously monitor multi-dimensional information such as the vehicle's driving status, battery power, ambient temperature, road conditions, and the driver's driving intentions. This information is comprehensively analyzed through a complex sensor network and advanced algorithms to provide an accurate basis for torque distribution. The motor controller can consider the torque characteristic curve, efficiency range, thermal management capabilities of each modular motor and their mutual influence to develop the optimal torque distribution strategy.

[0092] In order to achieve accurate torque distribution, the motor controller adopts a dynamic adjustment mechanism. That is, during the vehicle's driving, once any parameter changes (such as sudden load changes, road slope changes, etc.) are detected, the controller will immediately recalculate the torque requirements of each modular motor and send updated instructions in real time. This real-time adjustment capability ensures the continuity and stability of power output, while also improving energy efficiency.

[0093] In addition, the motor controller also has fault detection and fault tolerance capabilities. When a modular motor is detected to have a fault or performance degradation, the controller will quickly adjust the torque distribution scheme to transfer the load of the faulty motor to other normally working motors to ensure that the overall performance of the vehicle is not affected.

[0094] S202 , the modular motors receive and respond to torque demands, and output their respective corresponding torques.

[0095] In one possible approach, the modular motor can immediately enter the working state when receiving the torque demand command from the motor controller. The precision sensors integrated in each motor will monitor the key parameters such as the rotor position, speed, temperature, etc. in real time, and feed this information back to the motor controller for more precise control.

[0096] In one example, Fig.11 The figure shows a schematic diagram of a torque output process. The staff sets the configuration information of the modular motor system. The staff or the motor controller determines the torque distribution coefficient setting, including:

[0097] Configuration 1: 1 modular motor module, including: modular motor 1, torque distribution coefficient is K1.

[0098] Configuration 2: 2 modular motor modules, including: modular motor 1 and modular motor 2, with torque distribution coefficients of K1 and K2 respectively.

[0099] Optionally, K1 and K2 can be set according to actual needs. For example, K1 and K2 can be 0.5 and 0.5 respectively, or K1 and K2 can be 0.4 and 0.6 respectively. This application does not make specific restrictions on this.

[0100] Configuration 3: 3 modular motor modules, including: modular motor 1, modular motor 2 and modular motor 3, with torque distribution coefficients of K1, K2 and K3 respectively.

[0101] Optionally, K1, K2 and K3 can be set according to actual needs. For example, K1, K2 and K3 can be 0.2, 0.3 and 0.5 respectively, and K1, K2 and K3 can also be 0.3, 0.3 and 0.4 respectively. This application does not make specific restrictions on this.

[0102] In one possible manner, when the motor system is in configuration 1, after receiving the total torque demand Tqreq, the motor controller can calculate the torque demand Tq1 that the modular motor 1 needs to output according to the torque distribution coefficient. Tq1 satisfies the following formula 1:

[0103] Tq1=K1 / K1×Tqreq Formula 1

[0104] Wherein, Tq1 can be used to characterize the torque demand of the modular motor 1. K1 can be used to characterize the torque distribution coefficient of the modular motor 1. Tqreq can be used to characterize the total torque demand.

[0105] In one possible manner, when the motor system is in configuration 2, after receiving the total torque demand Tqreq, the motor controller can calculate the torque demands Tq1 and Tq2 that the modular motor 1 and the modular motor 2 need to output respectively according to the torque distribution coefficient. Tq1 satisfies the following formula 2:

[0106]

[0107] Among them, Tq1 can be used to characterize the torque demand of modular motor 1. K1 can be used to characterize the torque distribution coefficient of modular motor 1. K2 can be used to characterize the torque distribution coefficient of modular motor 2. Tqreq can be used to characterize the total torque demand.

[0108] Tq2 satisfies the following formula 3:

[0109]

[0110] Among them, Tq2 can be used to characterize the torque demand of modular motor 2. K1 can be used to characterize the torque distribution coefficient of modular motor 1. K2 can be used to characterize the torque distribution coefficient of modular motor 2. Tqreq can be used to characterize the total torque demand.

[0111] In one possible way, when the motor system is in configuration 3, after receiving the total torque demand Tqreq, the motor controller can calculate the torque demands Tq1, Tq2 and Tq3 that modular motor 1, modular motor 2 and modular motor 3 need to output respectively according to the torque distribution coefficient. Tq1 satisfies the following formula 4:

[0112]

[0113] Among them, Tq1 can be used to characterize the torque demand of modular motor 1. K1 can be used to characterize the torque distribution coefficient of modular motor 1. K2 can be used to characterize the torque distribution coefficient of modular motor 2. K3 can be used to characterize the torque distribution coefficient of modular motor 3. Tqreq can be used to characterize the total torque demand.

[0114] Tq2 satisfies the following formula 5:

[0115]

[0116] Among them, Tq2 can be used to characterize the torque demand of modular motor 2. K1 can be used to characterize the torque distribution coefficient of modular motor 1. K2 can be used to characterize the torque distribution coefficient of modular motor 2. K3 can be used to characterize the torque distribution coefficient of modular motor 3. Tqreq can be used to characterize the total torque demand.

[0117] Tq3 satisfies the following formula 6:

[0118]

[0119] Among them, Tq3 can be used to characterize the torque demand of modular motor 2. K1 can be used to characterize the torque distribution coefficient of modular motor 1. K2 can be used to characterize the torque distribution coefficient of modular motor 2. K3 can be used to characterize the torque distribution coefficient of modular motor 3. Tqreq can be used to characterize the total torque demand.

[0120] In one possible approach, the total torque demand is the sum of the output torques of each modular motor.

[0121] Combination Fig.11 ,like Fig.12 Schematic diagram of a motor system with different configurations.

[0122] Configuration 1 consists of a motor controller, a modular motor 1, a power supply, a power output, and wiring connections and mechanical transmission connections between modules.

[0123] Configuration 2 consists of a motor controller, modular motor 1, modular motor 2, a power supply, a power output, and wiring connections and mechanical transmission connections between modules.

[0124] Configuration 3 consists of a motor controller, modular motor 1, modular motor 2, modular motor 3, a power supply, a power output, and wiring harness connections and mechanical transmission connections between modules.

[0125] Based on this, the present application can modularly design the motor, so that according to the different needs of the vehicle (such as power, torque, space limitations, etc.), the number of modular motors can be increased or reduced to achieve the best performance match. In addition, the motor controller can accurately calculate and allocate the torque requirements of each motor based on the total torque requirements of the vehicle and the characteristics of each modular motor (such as efficiency curve, torque characteristics, etc.). This optimization-based torque distribution strategy helps to maximize overall efficiency and performance. Therefore, the present application can adapt to different vehicle models or application scenarios with different requirements for the power system.

[0126] Fig.13 FIG. 1 is a block diagram of an electronic device according to an exemplary embodiment. Fig.13 As shown, the electronic device includes but is not limited to: a processor 301 and a memory 302 .

[0127] The memory 302 is used to store executable instructions of the processor 301. It can be understood that the processor 301 is configured to execute instructions to implement the test method in the above embodiment.

[0128] It should be noted that those skilled in the art can understand that Fig.13 The electronic device structure shown in the figure does not constitute a limitation on the electronic device, and the electronic device may include Fig.13 More or fewer components may be shown, or certain components may be combined, or the components may be arranged differently.

[0129] The processor 301 is the control center of the electronic device. It uses various interfaces and lines to connect various parts of the entire electronic device. By running or executing software programs and / or modules stored in the memory 302, and calling data stored in the memory 302, it performs various functions of the electronic device and processes data, thereby monitoring the electronic device as a whole. The processor 301 may include one or more processing units. Optionally, the processor 301 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly processes wireless communications. It is understandable that the above-mentioned modem processor may not be integrated into the processor 301.

[0130] The memory 302 can be used to store software programs and various data. The memory 302 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, an application program required by at least one functional module (such as a determination unit, a processing unit, etc.), etc. In addition, the memory 302 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0131] In an exemplary embodiment, a computer-readable storage medium including instructions is also provided, such as a memory 302 including instructions. The above instructions can be executed by a processor 301 of an electronic device to implement the method in the above embodiment.

[0132] In actual implementation, Figure 1 The functions of the motor controller 101 and the modular motor device 102 can be implemented by Fig.13 The processor 301 in the embodiment calls the computer program stored in the memory 302. The specific execution process can refer to the description of the method part in the above embodiment, which will not be repeated here.

[0133] Optionally, the computer-readable storage medium may be a non-temporary computer-readable storage medium, for example, the non-temporary computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0134] In an exemplary embodiment, the present application also provides a computer program product including one or more instructions, and the one or more instructions can be executed by the processor 301 of the electronic device to complete the method in the above embodiment.

[0135] It should be noted that when the instructions in the above-mentioned computer-readable storage medium or one or more instructions in the computer program product are executed by the processor of the electronic device, the various processes of the above-mentioned method embodiment are implemented, and the same technical effect as the above-mentioned method can be achieved. To avoid repetition, they will not be repeated here.

[0136] Through the description of the above implementation methods, technical personnel in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0137] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0138] The units described as separate components may or may not be physically separated, and the components shown as units may be one physical unit or multiple physical units, that is, they may be located in one place or distributed in multiple different places. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0139] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0140] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application is essentially or the part that contributes to the prior art or the full classification part or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium, including a number of instructions to enable a device (which can be a single-chip microcomputer, chip, etc.) or a processor (processor) to execute the full classification part or part of the steps of each embodiment method of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, ROM, RAM, disk or CD and other media that can store program code.

[0141] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope disclosed in the present application 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.

Claims

1. A motor system, characterized in that: The system includes: a motor controller and at least one modular motor; The motor controller is configured to determine the torque demand corresponding to each of the at least one modular motor based on the torque distribution coefficient of each of the at least one modular motor and the total torque demand of the vehicle, and send the corresponding torque demand to each of the at least one modular motor; The modular motors are used to receive and respond to the torque requirements to output respective corresponding torques.

2. The system according to claim 1, characterized in that The motor system further includes: a power supply, wherein the at least one modular motor receives and responds to the torque demand to output a corresponding torque, including: The power supply is used to transmit electrical energy to the at least one modular motor; The modular electric machine is used to generate torque based on the torque demand and the electric energy transmitted by the power source; The modular motor is used to output torque.

3. The system according to claim 2, characterized in that The modular motor includes a power module and a motor module; the power module is electrically connected to the motor module; the modular motor generates torque based on the torque demand and the electric energy transmitted by the power source, including: The power module is used to receive the torque demand sent by the motor controller and the electric energy transmitted by the power source, and send the torque demand to the motor module; The motor module is used to generate torque based on the torque demand and the electric energy transmitted by the power source.

4. The system according to claim 3, characterized in that The at least one modular motor includes a first motor and a second motor; the motor module of the first motor includes: a power output end; the motor module of the second motor includes: a power output end and a power input end; the power output end of the motor module of the first motor is mechanically connected to the power input end of the motor module of the second motor; the power output end of the second motor is mechanically connected to the vehicle, and the modular motor output torque includes: The motor module of the first motor is used to output torque to the second motor; The motor module of the second motor is used to receive the torque output by the first motor and generate a target torque; the target torque is the sum of the torque generated by the first motor and the torque generated by the second motor; The motor module of the second motor is used to output target torque to the vehicle.

5. The system according to claim 4, characterized in that The power module of the first motor includes an electric energy input terminal; the power module of the second motor includes an electric energy input terminal and an electric energy output terminal; the electric energy input terminal of the second motor is electrically connected to the power supply; The power input terminal of the second motor is electrically connected to the power input terminal of the first motor; The power module receives the electric energy transmitted by the power source, including: The power supply is used to output electric energy to the first motor and the second motor.

6. The system according to claim 5, characterized in that The power module includes a low voltage interface; the power module is connected to the motor controller via the low voltage interface; the motor controller sends a corresponding torque demand to the at least one modular motor, including: The motor controller is used to send a torque demand to the modular motor based on the low voltage interface of the power module.

7. The system according to any one of claims 1 to 6, characterized in that: The number of modular motors is proportional to the maximum torque of the vehicle.

8. A torque output method, characterized in that: Applied to a motor system, the system comprises: a motor controller and at least one modular motor; the method comprises: The motor controller determines the torque demand corresponding to each of the at least one modular motor based on the torque distribution coefficient of each of the at least one modular motor and the total torque demand of the vehicle, and sends the corresponding torque demand to each of the at least one modular motor; The modular electric machines receive and respond to the torque requirements to output respective corresponding torques.

9. A vehicle, characterized in that: The vehicle comprises the motor system according to claims 1-7.

10. An electronic device, characterized in that: include: processor; a memory for storing instructions executable by the processor; The processor is configured to execute the instructions to implement the method according to claim 8.

11. A computer-readable storage medium, characterized in that: When the computer-executable instructions stored in the computer-readable storage medium are executed by a processor of an electronic device, the electronic device is capable of performing the method as claimed in claim 8.

12. A computer program product comprising instructions, characterized in that When the instructions are executed by a computer, the computer is caused to perform the method as claimed in claim 8.

Images