Motor control method and device and vehicle

Abstract

The invention relates to a control method and device of a motor and a vehicle, the motor comprises a shell and an air exhaust assembly, the air exhaust assembly is connected with the shell, and the air exhaust assembly is configured to exhaust air outwards from the interior of the shell so as to form a vacuum degree in the shell; the motor control method comprises the following steps: obtaining the closing time length of an air exhaust assembly; and in response to the fact that the closing duration of the air exhaust assembly is larger than the first duration threshold value, the air exhaust assembly is started. Through the technical scheme disclosed by the invention, the air density in the shell is gradually reduced, so that the air resistance can be reduced, the rotor of the motor can rotate in a relatively high vacuum environment, the performance of the motor is improved, the running stability and reliability of the motor are improved, and the energy consumption of the whole vehicle is further reduced.

Description

Technical Field

[0001] The present disclosure relates to the field of motor technology, and in particular to a control method, a control device, and a vehicle for a motor. Background Art

[0002] During the rotation of the motor, air resistance is generated. When the motor rotates at high speed, the air resistance increases significantly, and the motor needs to consume more electricity to overcome this resistance, thereby reducing the efficiency of the motor. The stability and reliability of the motor operation are poor, which increases the energy consumption of the entire vehicle and reduces the vehicle's cruising range. Summary of the Invention

[0003] In order to solve the above-mentioned technical problems, the present invention discloses a control method, a control device and a vehicle for a motor, which gradually reduce the air density inside the shell, thereby reducing air resistance and enabling the rotor of the motor to rotate in a higher vacuum environment, thereby improving the performance of the motor, and enhancing the stability and reliability of the motor operation, thereby reducing the energy consumption of the entire vehicle.

[0004] In a first aspect, the present disclosure provides a method for controlling a motor, comprising:

[0005] The motor includes a housing and an air extraction component, wherein the air extraction component is connected to the housing and is configured to extract air from the housing to the outside to form a vacuum in the housing;

[0006] The method comprises:

[0007] Get the closing time of the exhaust component;

[0008] In response to a shutdown time length of the air extraction component being greater than a first time length threshold, the air extraction component is activated.

[0009] Optionally, after starting the air extraction component, the method further comprises:

[0010] In response to the operating current of the air extraction component being greater than a current threshold, the air extraction component is turned off.

[0011] Optionally, after starting the air extraction component, the method includes:

[0012] Obtaining the rotation speed of the motor and / or the working efficiency of the motor;

[0013] determining a current threshold value according to a rotation speed of the motor and / or a working efficiency of the motor;

[0014] The rotation speed of the motor is positively correlated with the current threshold, and the working efficiency of the motor is negatively correlated with the current threshold.

[0015] Optionally, determining the current threshold of the air extraction component according to the rotational speed of the motor and / or the working efficiency of the motor includes:

[0016] determining a dynamic threshold of the air extraction component according to a rotational speed of the motor and / or a working efficiency of the motor;

[0017] The sum of the dynamic threshold and the minimum operating current of the air extraction component is determined as the current threshold of the air extraction component.

[0018] Optionally, the motor control method further includes:

[0019] In response to the rotation speed of the motor being greater than or equal to a preset rotation speed threshold, an operation of obtaining a closing time length of the air extraction component is performed.

[0020] Optionally, after shutting down the air extraction component in response to the operating current of the air extraction component being greater than a current threshold, the method further comprises:

[0021] Return to execute to obtain the shutdown duration of the exhaust component; in response to the shutdown duration of the exhaust component being greater than the first duration threshold, start the operation of the exhaust component; wherein the number of times the exhaust component is started is greater than or equal to 2.

[0022] Optionally, in response to the operating current of the air extraction component being greater than a current threshold, shutting down the air extraction component comprises:

[0023] In response to the operating current of the air extraction component being greater than the current threshold for a period longer than a second time threshold, the air extraction component is turned off.

[0024] Optionally, after shutting down the air extraction component in response to the operating current of the air extraction component being greater than a current threshold, the method further comprises:

[0025] obtaining a pressure change parameter in the housing within a third time threshold;

[0026] In response to a pressure change parameter in the housing being greater than a pressure parameter threshold, a prompt message is generated.

[0027] In a second aspect, the present disclosure further provides a motor control device, comprising:

[0028] A duration acquisition module is used to obtain the closing duration of the exhaust component;

[0029] The start control module is used to start the air extraction component in response to the shutdown time of the air extraction component being greater than the time threshold.

[0030] In a third aspect, the present disclosure further provides a vehicle, comprising: a processor and a memory, wherein the processor executes the steps of the method provided in the first aspect by calling a program or instruction stored in the memory.

[0031] The technical solution provided by the present disclosure has the following advantages compared with the related art:

[0032] The present disclosure provides a motor control method, control device, and vehicle. The motor includes a housing and an exhaust assembly, the exhaust assembly being connected to the housing and configured to extract air from the housing to form a vacuum within the housing. The motor control method includes: obtaining a closed duration of the exhaust assembly; and activating the exhaust assembly in response to the exhaust assembly closed duration exceeding a first duration threshold. Thus, in response to the exhaust assembly closed duration exceeding the first duration threshold, the exhaust assembly is activated, and the exhaust assembly extracts air that enters the housing when it is closed, gradually reducing the air density within the housing, thereby reducing air resistance and enabling the motor's rotor to rotate in a relatively high vacuum environment. This improves the motor's performance, enhances the stability and reliability of the motor's operation, and thereby reduces the energy consumption of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0035] Figure 1 A schematic flow chart of a motor control method provided in an embodiment of the present disclosure;

[0036] Figure 2 A schematic structural diagram of a motor provided in an embodiment of the present disclosure;

[0037] Figure 3 A schematic diagram of a specific flow chart of a motor control method provided by an embodiment of the present disclosure;

[0038] Figure 4 A schematic structural diagram of a motor control device provided by an embodiment of the present disclosure;

[0039] Figure 5 A schematic structural diagram of a vehicle provided in an embodiment of the present disclosure;

[0040] Among them, 1. Shell; 2. Vacuum assembly; 3. Rotor; 4. Motor output shaft; 21. Vacuum pump; 22. Vacuum motor. DETAILED DESCRIPTION

[0041] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features therein can be combined with each other in the absence of conflict.

[0042] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0043] In related technologies, air resistance is generated during the rotation of the motor. When rotating at high speed, the air resistance increases significantly, requiring the motor to consume more electrical energy to overcome this resistance, thereby reducing the efficiency of the motor, and the stability and reliability of the motor operation are poor, increasing the energy consumption of the entire vehicle and reducing the vehicle's cruising range.

[0044] In order to solve the above problems, the present disclosure provides a method for controlling a motor. Figure 1 This is a flow chart of a motor control method provided by an embodiment of the present disclosure. This method can be executed by a motor control device provided by an embodiment of the present disclosure. The motor control device can be implemented in software and / or hardware. Figure 1 As shown, the motor control method includes the following steps:

[0045] S101. Obtain the closing time of the exhaust component.

[0046] Figure 2 A schematic diagram of the structure of a motor provided in an embodiment of the present disclosure is shown in FIG. Figure 2 As shown, the motor includes a housing 1, in which the motor stator and winding ( Figure 2 (not specifically shown in the figure), when power is applied, the motor's stator and windings generate a rotating magnetic field. The motor's rotor 3 is rotatably disposed within the housing. When the rotating magnetic field generated by the stator and windings is applied to the motor's rotor 3, the motor's rotor 3 rotates. The motor also includes a motor output shaft 4, which is fixed to the motor's rotor 3 so that it rotates with the motor's rotor.

[0047] The motor further includes an exhaust assembly 2 , which is connected to the housing 1 . The exhaust assembly 2 is used to extract air from the inside of the housing 1 to the outside, so as to form a vacuum in the housing 1 .

[0048] After the motor is turned on and before the vacuum assembly is first started, the vacuum assembly's off duration refers to the duration from the time the motor is turned on to the time of the current test. After the vacuum assembly has been started and is in the off state, the vacuum assembly's off duration refers to the duration from the time the vacuum assembly was last turned off to the time of the current test. The current test time is the time during which the vacuum assembly's status is currently being determined. Optionally, the vacuum assembly's status can be determined at preset intervals.

[0049] Exemplarily, the closing time of the vacuum component can be counted by counting the timer. For example, it can be determined whether the vacuum component is in the closed state at every preset time interval. In response to the vacuum component being in the closed state and the closing time of the vacuum component being less than or equal to the first time threshold, the number of times of the timer is increased by one. The number of times of the timer corresponds to the number of times the vacuum component is detected to be closed before the vacuum component is turned on. The closing time of the vacuum component is determined based on the product of the number of times of the timer and the preset time.

[0050] It should be noted that the closing time of the exhaust component can also be obtained by direct timing. The closing time of the exhaust component can also be sent by the vehicle, or by an intelligent terminal connected to the vehicle for communication. The embodiment of the present disclosure does not limit the method of obtaining the closing time of the exhaust component.

[0051] S102: In response to the shutdown time of the air extraction component being greater than a first time threshold, start the air extraction component.

[0052] For example, whether the vacuum assembly is in the closed state is judged every 5 seconds. If it is determined that the vacuum assembly is in the closed state and the closed time of the vacuum assembly is less than or equal to the first time threshold of 30 seconds, the number of times of the timer is accumulated by 1, and this cycle is repeated until the number of times of the timer is accumulated to 7. It is determined that the closed time of the vacuum assembly is 35 seconds, which is greater than the first time threshold of 30 seconds, and the vacuum assembly is started.

[0053] For example, Figure 2 As shown, the vacuum component 2 may include, for example, an vacuum pump 21 and an vacuum motor 22. Since the vacuum component 2 has been closed for a period of time, a certain amount of air has entered the motor housing 1. The air will hinder the rotation of the motor's rotor 3 and affect the motor's performance. At this time, the vacuum motor 22 is started, and the vacuum motor 22 drives the vacuum pump 21 to work. The vacuum pump 21 can extract the air inside the housing 1. The air density inside the housing 1 gradually decreases to reach a semi-vacuum state, thereby reducing air resistance and enabling the motor's rotor 3 to rotate in a higher vacuum environment, thereby improving the motor's performance.

[0054] It should be noted that the first duration threshold can be set according to the actual usage of the motor, and the embodiment of the present disclosure is not limited to this.

[0055] In response to the closing time of the vacuum component being greater than the first time threshold, the embodiment of the present disclosure starts the vacuum component, and the vacuum component draws out the air that enters the shell when the vacuum component is in the closed state, so that the air density inside the shell gradually decreases, thereby reducing air resistance and enabling the rotor of the motor to rotate in a higher vacuum environment, thereby improving the performance of the motor, improving the stability and reliability of the motor operation, and thus reducing the energy consumption of the entire vehicle.

[0056] Optionally, after starting the air extraction component, the method further includes: shutting down the air extraction component in response to the operating current of the air extraction component being greater than a current threshold.

[0057] Specifically, as the air in the motor housing is continuously extracted, the air pressure inside the housing continues to drop, while the air pressure outside the housing is relatively high. The vacuum component needs to exert greater force to continue extracting the small amount of air in the housing, which increases the load on the vacuum component and the operating current of the vacuum component. Until the operating current of the vacuum component exceeds the current threshold, indicating that the vacuum degree in the housing is large and the vacuum component has difficulty in continuing to extract the air in the housing, the vacuum component needs to be shut down to prevent damage to the vacuum component, reduce the power consumption of the vacuum component, and improve the reliability and operational stability of the vacuum component.

[0058] Optionally, after starting the vacuum component, it includes: obtaining the motor speed and / or the motor working efficiency; determining the current threshold based on the motor speed and / or the motor working efficiency; wherein, the motor speed is positively correlated with the current threshold, and the motor working efficiency is negatively correlated with the current threshold.

[0059] Specifically, after the air extraction component is started, at least one of the motor speed and the motor working efficiency can be obtained, and the current threshold is determined according to at least one of the motor speed or the motor working efficiency.

[0060] Air resistance is proportional to the square of the motor speed. When rotating at high speed, the air resistance increases significantly, which requires the exhaust component to extract more air. Therefore, the higher the motor speed, the higher the set current threshold, so that the exhaust component can extract more air in the shell, thereby reducing the air resistance during the rotation of the motor rotor.

[0061] The lower the working efficiency of the motor, the greater the air resistance, which means that the exhaust component needs to extract more air. Therefore, the lower the working efficiency of the motor, the higher the current threshold is set, so that the exhaust component can extract more air in the shell, thereby reducing the air resistance during the rotation of the motor rotor.

[0062] Optionally, the current threshold of the air extraction component is determined based on the speed of the motor and / or the working efficiency of the motor, including: determining the dynamic threshold of the air extraction component based on the speed of the motor and / or the working efficiency of the motor; and determining the sum of the dynamic threshold and the minimum working current of the air extraction component as the current threshold of the air extraction component.

[0063] Specifically, when the dynamic threshold of the air extraction component determined according to the motor speed and / or the motor working efficiency is less than the starting current of the air extraction component, the sum of the dynamic threshold and the minimum working current of the air extraction component can be used as the current threshold of the air extraction component to ensure that the air extraction component can start normally.

[0064] In some embodiments, the current threshold of the air extraction component satisfies the following formula:

[0065] I_lim=A*N_em 2 +B / η+I_C

[0066] Where A is the speed coefficient, B is the efficiency coefficient, N_em is the motor speed, η is the motor efficiency, and I_C is the minimum operating current of the exhaust assembly. A positive value for the speed coefficient A indicates a positive correlation between the motor speed and the current threshold. A positive value for the efficiency coefficient B indicates a negative correlation between the motor efficiency and the current threshold.

[0067] In some embodiments, the current threshold may also be a preset fixed value, for example. The specific value of the current threshold may be set according to the actual use requirements of the motor, which is not limited in the embodiments of the present disclosure.

[0068] Optionally, the motor control method further includes: in response to the rotation speed of the motor being greater than or equal to a preset rotation speed threshold, executing an operation of obtaining the closing time length of the air extraction component.

[0069] Specifically, before obtaining the closing time of the vacuum component, you can first determine whether the motor speed is greater than or equal to the preset speed threshold. Since the motor speed is proportional to the air resistance, the greater the motor speed, the greater the air resistance. Based on the fact that the motor speed is greater than or equal to the preset speed threshold, it means that the air resistance is large, and the vacuum component needs to be started to extract the air in the shell, then the operation of obtaining the closing time of the vacuum component is executed.

[0070] Since the motor speed is less than the preset speed threshold, the air resistance is small, and there is no need to start the exhaust component, and there is no need to perform the operation of obtaining the closing time of the exhaust component.

[0071] Therefore, based on the motor speed being greater than or equal to the preset speed threshold, the operation of obtaining the closing time of the exhaust component is performed, which makes the opening timing of the exhaust component more reasonable and reduces the power consumption of the exhaust component.

[0072] Optionally, in response to the working current of the vacuum component being greater than the current threshold, after the vacuum component is turned off, it also includes: returning to execute to obtain the shutdown duration of the vacuum component; in response to the shutdown duration of the vacuum component being greater than the first duration threshold, starting the operation of the vacuum component; wherein, the number of times the vacuum component is started is greater than or equal to 2.

[0073] Specifically, although the motor housing is a sealed device, it still has a small amount of air leakage. After starting the vacuum component once to reduce the air density inside the housing, air will continue to enter the housing, causing the vacuum degree inside the housing to decrease and the air resistance to increase. Therefore, it is necessary to control the vacuum component to repeatedly extract air from the inside to the outside of the housing.

[0074] For example, after the exhaust assembly is turned off, the timer recording the off time of the exhaust assembly can be reset to zero, the operation of obtaining the off time of the exhaust assembly is repeated, and in response to the off time of the exhaust assembly being longer than the first time threshold, the exhaust assembly is started again to extract air from the motor housing. This cycle is repeated to start the exhaust assembly multiple times to extract air.

[0075] Therefore, the embodiment of the present disclosure starts the vacuum assembly multiple times to avoid the problem of the vacuum degree in the shell decreasing and the air resistance increasing affecting the operation of the motor, thereby improving the reliability of the motor operation.

[0076] It should be noted that the number of times the air extraction component is started can be set according to the actual use of the motor, and the embodiment of the present disclosure does not limit this.

[0077] Optionally, in response to the operating current of the air extraction component being greater than a current threshold, shutting down the air extraction component includes: shutting down the air extraction component in response to the duration during which the operating current of the air extraction component is greater than the current threshold being greater than a second duration threshold.

[0078] Specifically, when it is detected that the operating current of the air extraction component is greater than the current threshold, in order to prevent misjudgment of the operating current, the air extraction component is still controlled to remain in the activated state and continue to extract air from the housing until the operating current of the air extraction component is greater than the current threshold for a period longer than a second time threshold. When it is confirmed that the air extraction component is indeed unable to continue extracting air from the housing, the air extraction component is shut down. In this way, misjudgment of the operating current is avoided, the reliability of the air extraction component is improved, and the timing of shutting down the air extraction component is more reasonable.

[0079] Optionally, in response to the working current of the vacuum component being greater than the current threshold, after closing the vacuum component, it also includes: obtaining the pressure change parameter in the shell within the third time threshold; in response to the pressure change parameter in the shell being greater than the pressure parameter threshold, generating a prompt message.

[0080] Specifically, the motor has certain requirements for air tightness. The air intake of the motor housing cannot be higher than the air extraction volume of the vacuum component to ensure that the vacuum degree of the housing can increase when the vacuum component is extracting air, and the vacuum degree of the housing will not drop immediately after the vacuum component finishes extracting air.

[0081] In order to determine whether the motor is leaking, after closing the exhaust component, the pressure change parameter in the housing within the third time threshold can be obtained. The pressure change parameter can be, for example, a pressure change value or a pressure change rate. If the pressure change value in the housing within the third time threshold is greater than the pressure change value threshold, or if the pressure change rate in the housing within the third time threshold is greater than the pressure change rate threshold, it indicates that the motor is leaking, and a prompt message indicating motor leakage is generated to prompt relevant personnel to repair the motor in a timely manner. It should be noted that the prompt message can be, for example, a sound prompt message and / or a display prompt message, which is not limited in the embodiments of the present disclosure.

[0082] Figure 3 A schematic diagram of a specific flow chart of a motor control method provided by an embodiment of the present disclosure, such as Figure 3 As shown, the motor control method includes:

[0083] S301, start.

[0084] S302: Obtain the closing time of the exhaust component.

[0085] S303 , determining whether the closing time of the exhaust component is greater than a first time threshold; if so, executing step 304 ; if not, executing step 311 .

[0086] S304, start the exhaust assembly.

[0087] S305: Obtain the rotation speed and working efficiency of the motor.

[0088] S306 : Determine a current threshold according to the rotational speed of the motor, the working efficiency of the motor, and the minimum working current of the motor.

[0089] S307 , determining whether the operating current of the exhaust component is greater than the current threshold; if so, executing step 308 ; if not, executing step 310 .

[0090] S308, close the exhaust assembly.

[0091] S309: Reset the closing time of the exhaust component to zero.

[0092] S310, the exhaust assembly continues to work.

[0093] S311. Keep the exhaust assembly closed.

[0094] S312. Continue to record the closing time of the exhaust assembly.

[0095] The control method of the motor provided in the embodiment of the present disclosure starts the vacuum component in response to the closing time of the vacuum component being greater than the first time threshold. The vacuum component draws out the air that enters the shell when the vacuum component is in the closed state, so that the air density inside the shell gradually decreases, thereby reducing air resistance and enabling the rotor of the motor to rotate in a higher vacuum environment, thereby improving the performance of the motor, improving the stability and reliability of the motor operation, and thus reducing the energy consumption of the entire vehicle.

[0096] The embodiments of the present disclosure also provide a control device for a motor. Figure 4 A schematic diagram of a motor control device according to an embodiment of the present disclosure is shown in FIG. Figure 4 As shown, the motor control device includes: a duration acquisition module 401 and a start control module 402. The duration acquisition module 401 is used to obtain the off duration of the air extraction component, and the control module 402 is used to start the air extraction component in response to the off duration of the air extraction component being greater than a duration threshold.

[0097] The apparatus provided in the above-mentioned embodiments of the present disclosure and the method provided in the embodiments of the present disclosure are based on the same inventive concept and have the same beneficial effects, and are not described in detail here.

[0098] The present disclosure also provides a vehicle, which may include a processor and a memory. Figure 5 This is a schematic diagram of the structure of a vehicle provided by an embodiment of the present disclosure. Figure 5 As shown, the vehicle includes a processor 501 and a memory 502. The processor 501 executes the steps of the motor control method as described above by calling the program or instructions stored in the memory 502. Therefore, the vehicle has the beneficial effects of the above embodiment and will not be repeated here.

[0099] Specifically, if Figure 5 As shown, a vehicle can be configured to include at least one processor 501, at least one memory 502, and at least one communication interface 503. The various components in the vehicle are coupled together via a bus system 504. The communication interface 503 is used to transmit information to and from external devices. It is understood that the bus system 504 is used to achieve connection and communication between these components. In addition to the data bus, the bus system 504 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, the bus system 504 is not described in detail. Figure 5 Various buses are labeled as bus system 504 .

[0100] It is understood that the memory 502 in this embodiment can be volatile memory or non-volatile memory, or can include both volatile and non-volatile memory. In some embodiments, the memory 502 stores the following elements: executable units or data structures, or subsets thereof, or extended sets thereof, operating systems, and applications. In the disclosed embodiment, the processor 501 executes the steps of each embodiment of the motor control method provided in the disclosed embodiment by calling the program or instructions stored in the memory 502.

[0101] The control method of the motor provided in the embodiment of the present disclosure can be applied to the processor 501, or implemented by the processor 501. The processor 501 can be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit in the processor 501 or the instructions in the form of software. The above-mentioned processor 501 can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc.

[0102] The steps of the motor control method provided in the embodiments of the present disclosure can be directly implemented and executed by a hardware decoding processor, or by a combination of hardware and software units within the decoding processor. The software units can be located in a storage medium well-known in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in memory 502, and processor 501 reads the information in memory 502 and, in conjunction with the hardware, completes the steps of the method.

[0103] The vehicle may also include one or more physical components, based on instructions generated by the processor 501 when executing the motor control method provided in the embodiments of the present application. Different physical components may be located inside the vehicle or outside the vehicle, such as a cloud server. Each physical component works together with the processor 501 and the memory 502 to implement the functions of the vehicle in this embodiment.

[0104] In addition, the vehicle described in the embodiment of the present disclosure may be a fuel vehicle, a pure electric vehicle, or a hybrid vehicle, etc., and the embodiment of the present disclosure does not specifically limit this.

[0105] The embodiments of the present disclosure further provide a computer-readable storage medium, which stores a program or instruction. The program or instruction enables a computer to execute the steps of any one of the methods provided in the above embodiments.

[0106] In some embodiments, when executed by a computer processor, the computer executable instructions can also be used to execute the technical solutions of any of the above methods provided in the embodiments of the present disclosure to achieve corresponding beneficial effects.

[0107] Through the above description of the implementation methods, those skilled in the art can clearly understand that the present disclosure can be implemented with the help of software and necessary general-purpose hardware, and of course it can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present disclosure, or the part that contributes to the prior art, can be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as a computer's floppy disk, read-only memory (ROM), random access memory (RAM), flash memory (FLASH), hard disk or optical disk, etc., including a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute the methods of each embodiment of the present disclosure.

[0108] The motor control method, control device and vehicle provided in the embodiments of the present disclosure start the vacuum component in response to the closing time of the vacuum component being greater than the first time threshold. The vacuum component draws out the air that enters the shell when the vacuum component is in the closed state, so that the air density inside the shell gradually decreases, thereby reducing air resistance and enabling the rotor of the motor to rotate in a higher vacuum environment, thereby improving the performance of the motor, improving the stability and reliability of the motor operation, and thus reducing the energy consumption of the entire vehicle.

[0109] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes 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 device. 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 device that includes the element.

[0110] The foregoing description is intended only to provide specific embodiments of the present disclosure, intended to enable those skilled in the art to understand and implement the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure is not intended to be limited to the embodiments described herein, but rather to be construed in the broadest manner consistent with the principles and novel features disclosed herein.

Claims

1. A method for controlling a motor, characterized in that: The motor includes a housing and an air extraction component, wherein the air extraction component is connected to the housing and is configured to extract air from the housing to the outside to form a vacuum in the housing; The method comprises: Get the closing time of the exhaust component; In response to a shutdown time length of the air extraction component being greater than a first time length threshold, the air extraction component is activated.

2. The motor control method according to claim 1, characterized in that: After starting the air extraction component, the method further comprises: In response to the operating current of the air extraction component being greater than a current threshold, the air extraction component is turned off.

3. The motor control method according to claim 2, characterized in that: After the air extraction component is started, the steps include: Obtaining the rotation speed of the motor and / or the working efficiency of the motor; determining a current threshold value according to a rotation speed of the motor and / or a working efficiency of the motor; The rotation speed of the motor is positively correlated with the current threshold, and the working efficiency of the motor is negatively correlated with the current threshold.

4. The motor control method according to claim 3, characterized in that: Determining the current threshold of the air extraction component according to the rotational speed of the motor and / or the working efficiency of the motor includes: determining a dynamic threshold of the air extraction component according to a rotational speed of the motor and / or a working efficiency of the motor; The sum of the dynamic threshold and the minimum operating current of the air extraction component is determined as the current threshold of the air extraction component.

5. The motor control method according to claim 1, characterized in that: Also includes: In response to the rotation speed of the motor being greater than or equal to a preset rotation speed threshold, an operation of obtaining a closing time length of the air extraction component is performed.

6. The motor control method according to claim 2, characterized in that: After the air extraction component is closed in response to the operating current of the air extraction component being greater than the current threshold, the method further includes: Return to execute to obtain the shutdown duration of the exhaust component; in response to the shutdown duration of the exhaust component being greater than the first duration threshold, start the operation of the exhaust component; wherein the number of times the exhaust component is started is greater than or equal to 2.

7. The motor control method according to claim 2, characterized in that: In response to the operating current of the air extraction component being greater than a current threshold, shutting down the air extraction component comprises: In response to the operating current of the air extraction component being greater than the current threshold for a period longer than a second time threshold, the air extraction component is turned off.

8. The motor control method according to claim 2, characterized in that: After the air extraction component is closed in response to the operating current of the air extraction component being greater than the current threshold, the method further includes: obtaining a pressure change parameter in the housing within a third time threshold; In response to a pressure change parameter in the housing being greater than a pressure parameter threshold, a prompt message is generated.

9. A motor control device, characterized in that: include: A duration acquisition module is used to obtain the closing duration of the exhaust component; The start control module is used to start the air extraction component in response to the shutdown time of the air extraction component being greater than the time threshold.

10. A vehicle, characterized in that: The method comprises a processor and a memory, wherein the processor executes the steps of the method according to any one of claims 1 to 8 by calling a program or instruction stored in the memory.

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