Electric engine and control method thereof, electric propulsion system and aircraft

Abstract

The invention relates to the field of power control, in particular to an electric engine and a control method thereof, an electric propulsion system and an aircraft, the electric engine comprises a first motor module, a first control assembly and a second control assembly; the first motor module is provided with a first winding and a second winding; the control assembly is selectively and electrically connected with the first winding and / or the second winding; any one of the first control assembly and the second control assembly is used for simultaneously gating the access between the control assembly and the first winding and the access between the control assembly and the second winding when monitoring that the access where the other control assembly is located loses the capability of driving the first motor module. Therefore, the two windings of the first motor module are driven at the same time. According to the invention, the two windings of the first motor module can be controlled to output power even if part of the control assemblies fail.

Description

Technical Field

[0001] This application relates to the field of power control, and in particular to electric motors and their control methods, electric propulsion systems and aircraft. Background Technology

[0002] The development of low-altitude aircraft is rapid, and flight safety is a key consideration for the industry's development. For safe flight to be achieved, aircraft must be able to operate reliably.

[0003] Aircraft are typically equipped with at least one electric motor to provide power and perform necessary functions, such as providing sufficient power for flight. However, if the electric motor fails, power loss may occur, making it difficult to guarantee the overall reliability of the aircraft's performance.

[0004] However, even if a certain amount of power is guaranteed, the lost power will cause performance defects or inadequacies. Therefore, it is desirable for the electric motor to reliably output full power as much as possible. Summary of the Invention

[0005] This embodiment provides an electric motor and its control method, an electric propulsion system, and an aircraft to help solve the problem of how to improve the reliability of electric motors in related technologies.

[0006] In a first aspect, this embodiment provides an electric motor, which includes a first motor module, a first control component, and a second control component. The first motor module has a first winding and a second winding. The first control component is selectively electrically connected to the first winding and / or the second winding. The second control component is selectively electrically connected to the first winding and / or the second winding. The first control component is configured to select a path between itself and the first winding in an initial operating state. The second control component is configured to select a path between itself and the second winding in an initial operating state, so that the first motor module outputs power under the cooperative drive of the first winding and the second winding. Either the first control component and the second control component is configured to simultaneously select a path between itself and the first winding, and between itself and the second winding, when it is detected that the path of the other control component has lost its ability to drive the first motor module, so as to simultaneously drive both windings of the first motor module.

[0007] Secondly, this embodiment provides a control method for an electric motor, which is applied to any one of the aforementioned control components in the electric motor. The control method includes: monitoring whether the path where another control component is located loses its ability to drive the first motor module; when it is detected that the path where another control component is located loses its ability to drive the first motor module, simultaneously selecting the path between this control component and the first winding, and between this control component and the second winding, so as to simultaneously drive the two windings of the first motor module.

[0008] Thirdly, this embodiment provides an electric propulsion system, including the aforementioned electric motor.

[0009] Fourthly, this embodiment provides an aircraft that includes the aforementioned electric propulsion system.

[0010] Compared with related technologies, the electric motor provided in this embodiment solves the problem of complete loss of power in case of unexpected failure by setting two control components to control two windings. Furthermore, when the path where the other control component is located loses the ability to drive the first motor module, either control component can simultaneously select the path between itself and the first winding, as well as between itself and the second winding, so as to drive the two windings of the first motor module at the same time, thereby realizing the power output of the two windings together.

[0011] This application provides a control method that enables both windings to output power simultaneously. The electric propulsion system and aircraft provided in this application have high operational reliability.

[0012] Details of one or more embodiments of this application are set forth in the following drawings and description to make other features, objects and advantages of this application more readily apparent. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0014] Figure 1 It is a schematic structural diagram of an electric motor and propeller according to one or more embodiments;

[0015] Figure 2 It is a schematic flowchart of a control method according to one or more embodiments;

[0016] Figure 3 This is another schematic flowchart of the steps of a control method according to one or more embodiments;

[0017] Figure 4This is another illustrative flowchart of the steps of a control method according to one or more embodiments;

[0018] Figure 5 This is yet another schematic flowchart of the steps of a control method according to one or more embodiments;

[0019] Figure 6 A schematic relationship block diagram of an electric motor according to one or more embodiments;

[0020] Figure 7 This is a schematic diagram of the structure of an electric motor according to one or more embodiments;

[0021] Figure 8 It is a schematic structural diagram of an electric motor according to one or more embodiments;

[0022] Figure 9 It is a schematic signaling diagram of an electric motor according to one or more embodiments;

[0023] Figure 10 This is another schematic relationship block diagram of an electric motor according to one or more embodiments;

[0024] Figure 11 It is a schematic diagram of the control path relationship according to one or more embodiments;

[0025] Figure 12 It is a structural schematic diagram of an aircraft according to one or more embodiments.

[0026] Explanation of reference numerals in the attached drawings: 1. First motor module; 2. Second motor module; 31. First selector; 32. Second selector; 41. First controller; 42. Second controller; 5. Driver; 6. Power device; 7. Power supply; 8. Monitoring module; 10. Heat dissipation circuit;

[0027] 100. First control component; 200. Second control component; 300. Communication line;

[0028] 101. First heat dissipation controller; 102. First heat dissipation selector; 103. First heat dissipation driver; 104. Third winding; 105. First monitoring module; 106. First power controller; 107. First power selector; 108. First power driver; 109. First winding;

[0029] 201. Second heat dissipation controller; 202. Second heat dissipation selector; 203. Second heat dissipation driver; 204. Fourth winding; 205. Second monitoring module; 206. Second power controller; 207. Second power selector; 208. Second power driver; 209. Second winding;

[0030] 410. First sensor group; 420. Second sensor group; 430. Third sensor group; 440. Fourth sensor group;

[0031] 1000, Aircraft; 1100, Electric propulsion system; 1110, Electric motor; 1120, Propeller; 1200, Airframe. Detailed Implementation

[0032] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application.

[0033] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used herein are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items. In the description of this application, “a plurality” means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

[0034] It should be understood that although the terms first, second, third, etc., may be used in this application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0035] In this application, unless otherwise expressly specified and limited, the terms "connected," "connected," etc., should be interpreted broadly, and can refer to mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium, or direct connections with an intermediate medium present; they can also refer to the internal connection of two components or the interaction between two components, unless otherwise expressly limited. The terms "installed," "set up," "fixed," "coupled," etc., can be broadly understood as connections. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. It is understood that in this application, "connection" should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., transmit electrical signals or data to each other.

[0036] In related technologies, the following specialized terms are typically defined. Specifically, an electric motor refers to a device that converts electrical energy into mechanical energy to provide rotational speed and torque to a propeller, consisting of a power motor, a power motor controller, and related accessories. An electric propulsion system refers to a system that converts electrical energy into mechanical energy to provide lift or thrust to a powered aircraft, consisting of an electric motor, a propeller, and related accessories. A power plant refers to a device that provides power to a powered aircraft, consisting of an electric propulsion system, a power battery, and its power distribution system.

[0037] Aircraft are typically equipped with at least one electric motor to provide power and perform necessary functions, such as providing sufficient thrust for flight. However, if the electric motor fails, power loss may occur, making it difficult to guarantee the overall reliability of the aircraft's performance. Even if some power is maintained, the lost power can cause performance deficiencies or inadequacies. Therefore, it is desirable for the electric motor to reliably output full power as much as possible.

[0038] This application provides an electric motor and its control method, an electric propulsion system, and an aircraft, in order to help solve the problem of how to improve the reliability of electric motors in related technologies.

[0039] The electric motor and its control method, electric propulsion system and aircraft provided in this application enable any control component to simultaneously drive the two windings of the first motor module when the path where the other control component is located loses the ability to drive the first motor module, thus achieving complete power output.

[0040] The following specific embodiments are given to illustrate the technical solution of this application in detail.

[0041] refer to Figure 1 , Figure 1 An electric motor according to an embodiment of this application is illustrated. In an exemplary embodiment, the electric motor 1110 includes a first motor module 1, a first control component 100, and a second control component 200. When the two control components work together, the first motor module 1 can output full power. The electric motor 1110 can be used to drive the propeller 1120 to rotate. In other embodiments, the electric motor 1110 can also drive other mechanisms to move.

[0042] The first motor module 1 may have two windings, specifically, a first winding 109 and a second winding 209. A first control component 100 may be selectively electrically connected to the first winding 109 and / or the second winding 209; a second control component 200 may be selectively electrically connected to the first winding 109 and / or the second winding 209.

[0043] For example, a first control component 100 may be electrically connected to a first winding 109, and a second control component 200 may be electrically connected to a second winding 209. The first control component 100 may be electrically connected to both the first winding 109 and the second winding 209. The second control component 200 may be electrically connected to both the first winding 109 and the second winding 209. The first control component 100 may be electrically connected to the second winding 209, and the second control component 200 may be electrically connected to the first winding 109.

[0044] Combination Figure 2 As shown, Figure 2 The steps that the electric motor of this application embodiment can perform are shown. The control component of the electric motor 1110 of this application embodiment is configured to perform steps S310 and S121. Step S310: In the initial operating state, the path between the control component and the initial winding is selected. Step S121: The initial winding is controlled.

[0045] Specifically, the first control component 100 is used to select the path between the first control component 100 and the first winding 109 in the initial operating state. The second control component 200 is used to select the path between the second control component 200 and the second winding 209 in the initial operating state, so that the first motor module 1 outputs power under the coordinated drive of the first winding 109 and the second winding 209. The electric motor 1110 has stable output and balanced operation, which helps to avoid excessive workload on a single control component.

[0046] Based on the aforementioned initial working state, for the first control component 100, this control component is the first control component 100, and the initial winding is the first winding 109; for the second control component 200, this control component is the second control component 200, and the initial winding is the second winding 209.

[0047] Alternatively, the electric motor 1110 can also control the operation of a single winding using only a single control component. This way, even if a single control component fails, the electric motor 1110 can still output power. However, this will only output a portion of the preset power, such as half. It is still desirable for both windings to operate and work together to output the full power.

[0048] For example, either the first control component 100 or the second control component 200 is further configured to perform steps S210, S110 and S120.

[0049] Step S210: Monitor whether the path containing another control component has lost its ability to drive the first motor module 1. For example, the first control component 100 detects the second control component 200.

[0050] If not lost, proceed to step S121 to control the initial winding. When the second control component 200 is functioning normally, the first control component 100 controls the first winding 109.

[0051] If the capability is lost, step S110 can be executed, simultaneously activating the pathways between this control component and the first winding 109, as well as between this control component and the second winding 209. When the second control component 200 loses its driving capability, the first control component 100 simultaneously activates both windings.

[0052] Then, in step S122, the newly connected winding is controlled by a control signal. For example, when the path where the second control component 200 is located loses its driving capability, after the first control component 100 connects the second winding 209, the initial winding is the first winding 109, and the newly connected second winding 209 is called the newly connected winding.

[0053] If the first control component 100 loses its driving capability, when the second control component 200 executes step S122, the initial winding is the second winding 209, and the newly connected first winding 109 is called the newly connected winding.

[0054] Step S120 may include steps S121 and S122. The first control component 100 simultaneously controls the first winding 109 and the second winding 209.

[0055] Exemplarily, the electric motor 1110 includes a first motor module 1, a first control component 100, and a second control component 200. The first motor module 1 has a first winding 109 and a second winding 209. The first control component 100 is selectively electrically connected to the first winding 109 and / or the second winding 209; the second control component 200 is selectively electrically connected to the first winding 109 and / or the second winding 209. The first control component 100 is used to select a path between the first control component 100 and the first winding 109 in an initial operating state. The second control component 200 is used to select a path between the second control component 200 and the second winding 209 in an initial operating state, so that the first motor module 1 outputs complete power under the cooperative drive of the first winding 109 and the second winding 209. Either the first control component 100 or the second control component 200 is configured to simultaneously activate the paths between itself and the first winding 109, and between itself and the second winding 209, when it detects that the path of the other control component has lost its ability to drive the first motor module 1, thereby simultaneously driving both windings of the first motor module 1. This configuration solves the problem of complete power loss in the event of an unexpected fault. Furthermore, since either control component can simultaneously activate the paths between itself and the first winding 109, and between itself and the second winding 209, when the path of the other control component loses its ability to drive the first motor module 1, thereby simultaneously driving both windings of the first motor module 1, power output from both windings is achieved.

[0056] To illustrate the electric motor 1110 of this embodiment in more detail, refer to... Figure 6 , Figure 6 An electric motor 1110 according to an embodiment of this application is shown. The electric motor 1110 may include a first motor module 1 and a second motor module 2. A control component can control either the first motor module 1 or the second motor module 2.

[0057] refer to Figure 6 When the first motor module 1 is a power motor, the two first selectors 31 can be a first power selector 107 and a second power selector 207, respectively. The control component may include a first controller 41. The two first controllers 41 can be a first power controller 106 and a second power controller 206, respectively. The first power controller 106 and the second power controller 206 control their respective initial windings to ensure that the first motor module 1 outputs complete power. When one of the first controllers 41 fails, the other first controller 41 simultaneously selects the first winding 109 and the second winding 209, and controls both windings simultaneously to ensure that the first motor module 1 still outputs complete power.

[0058] The first selector 31 can be a switching circuit. The first selector 31 includes a circuit output terminal and two selection input terminals. The circuit output terminal is connected to the winding, and the two selection input terminals are connected one-to-one to the two first controllers 41. The first power controller 106 can be electrically connected to the first winding 109 via the first power selector 107, and the second power controller 206 can be electrically connected to the second winding 209 via the second power selector 207. Optionally, the first power controller 106 can also be electrically connected to the second winding 209 via the second power selector 207. In other cases, the second power controller 206 is electrically connected to the first winding 109 via the first power selector 107. The switching circuit helps ensure that when one selection input terminal is turned on, the other selection input terminal is turned off.

[0059] The second motor module 2 can also be a dual-winding motor, including a third winding 104 and a fourth winding 204. For the second motor module 2, the electric motor 1110 may also include two second selectors 32. The control components each include a second controller 42. Specifically, the circuit output terminal of the first heat dissipation selector 102 is electrically connected to the third winding 104, and the circuit output terminal of the second heat dissipation selector 202 is electrically connected to the fourth winding 204. The first heat dissipation controller 101 is connected to one selection input terminal of the first heat dissipation selector 102. When this selection input terminal is connected to the circuit output terminal, the first heat dissipation controller 101 can control the third winding 104. The second heat dissipation controller 201 is connected to one selection input terminal of the second heat dissipation selector 202. When this selection input terminal is connected to the circuit output terminal of the second heat dissipation selector 202, the second heat dissipation controller 201 can control the fourth winding 204. Furthermore, the second heat dissipation controller 201 is also connected to another selection input terminal of the first heat dissipation selector 102. When the first heat dissipation controller 101 fails, the first heat dissipation selector 102 can select the circuit output terminal to connect to the second heat dissipation controller 201. That is, the second heat dissipation controller 201 can control the third winding 104 and the fourth winding 204 through two selectors. The first heat dissipation controller 101 can be connected to another selection input terminal of the second heat dissipation selector 202. Thus, when the second heat dissipation controller 201 fails, the circuit output terminal of the second heat dissipation selector 202 can connect to the first heat dissipation controller 101, and the first heat dissipation controller 101 can control the third winding 104 and the fourth winding 204 through two selectors.

[0060] In other embodiments, reference is made to... Figure 1The electric motor 1110 can have two first selectors 31 configured for its two pathways. Each first selector 31 corresponding to the first winding 109 can include two pairs of input / output terminals. One pair of input / output terminals is connected between the first winding 109 and the first controller 41 of the first control component 100, and the other pair is connected between the first winding 109 and the first controller 41 of the second control component 200. Similarly, each first selector 31 corresponding to the second winding 209 can also include two pairs of input / output terminals, one pair connected between the second winding 209 and the first controller 41 of the first control component 100, and the other pair connected between the second winding 209 and the first controller 41 of the second control component 200.

[0061] The second selector 32 can be the same type as or different from the first selector 31. The selector can controllably select the path that needs to be connected.

[0062] Steps S310 and S110 may include selecting the second motor module 2. Step S120 may include controlling the second motor module 2.

[0063] refer to Figure 6 and Figure 7 ,in Figure 7An electric motor 1110 according to an embodiment of this application is shown. A first motor module 1 is a power motor, and a second motor module 2 is a cooling motor. The cooling motor has a third winding 104 and a fourth winding 204. The electric motor 1110 also includes two cooling circuits 10, specifically a first cooling circuit and a second cooling circuit. The cooling motor is used to drive the liquid circulation in the first and second cooling circuits; the first cooling circuit is used to dissipate heat for the first motor module 1 and the first control component 100. The second cooling circuit is used to dissipate heat for the first motor module 1 and the second control component 200. The first control component 100 is selectively electrically connected to the third winding 104 and / or the fourth winding 204. The second control component 200 is selectively electrically connected to the third winding 104 and / or the fourth winding 204. Specifically, the first control component 100 is used to select the path between itself and the third winding 104 in the initial operating state, and the second control component 200 is used to select the path between itself and the fourth winding 204 in the initial operating state. Either the first control component 100 or the second control component 200 is further configured to simultaneously activate the paths between this control component and the third winding 104, and between this control component and the fourth winding 204, when the path of the other control component is detected to have lost its ability to drive the cooling motor, so as to simultaneously drive both cooling windings of the cooling motor. The configuration of the two control components ensures that even if one fails, the other can still ensure complete power output from the dual windings of the cooling motor, helping to avoid only one winding operating and ensuring high heat dissipation capacity. The cooling motor in the electric motor 1110 ensures efficient heat dissipation for its various heat-generating components, improving operational reliability.

[0064] The loss of the control component's ability to drive the motor module could be caused by various issues. For example, external components of the control component might fail, such as communication or power supply failures, or there might be a fault in the device or wiring. Internal components of the control component might also fail, including wiring and connectors. The control component might be unable to send control signals to the selector. Insufficient heat dissipation could limit the performance of the control component, or a sensor malfunction could lead to a misjudgment of the control component's fault. Optionally, for safety, the electric motor 1110 utilizes a normal control component to manage both windings.

[0065] When the controller malfunctions, in addition to the inability to send signals, it may also send incorrect signals. The control components of the electric motor 1110 may also include monitoring modules 8. Specifically, the two monitoring modules 8 may be a first monitoring module 105 and a second monitoring module 205. The first monitoring module 105 may be electrically connected to the first power controller 106, and the second monitoring module 205 may be electrically connected to the second power controller 206. By setting two monitoring modules 8 to be respectively connected to one of the two power controllers, it is helpful to better monitor whether the power controller is working properly. The monitoring modules 8 may also be indirectly connected to the controller of another channel.

[0066] The two monitoring modules 8 can also be connected to one of the corresponding heat dissipation controllers in the two heat dissipation controllers. The monitoring module 8 corresponding to one path can also be indirectly connected to the controller of the other path. In this embodiment, the monitoring module 8 in the electric motor 1110, which is used to monitor the power controller, also monitors the heat dissipation controller, which can improve the integration of the electric motor 1110; it can improve the automatic control capability of the second motor module 2, which is beneficial to improving the safety of the electric motor 1110.

[0067] refer to Figure 6 The aforementioned selector may also include an enable terminal. Further, a monitoring module 8 can be connected to the enable terminal of the first selector 31. Specifically, the first monitoring module 105 is connected to the enable terminal of the second power selector 207, used to select that the circuit output terminal is connected to one of the two selection input terminals; the second monitoring module 205 can also be connected to the enable terminal of the first power selector 107, used to select that the circuit output terminal of the first power selector 107 is connected to one of the two selection input terminals. After achieving safer monitoring through the monitoring module 8, the security of the connection can be further ensured, and erroneous control by a faulty controller can be avoided.

[0068] For example, the monitoring module 8 is connected to the enable terminal of the corresponding second selector 32. For instance, the first monitoring module 105 is connected to the first heat dissipation controller 101, and can also be connected to the enable terminal of a second heat dissipation selector 202 located in another path. The first monitoring module 105 enables the second heat dissipation selector 202 to switch to the first heat dissipation controller 101 controlling the fourth winding 204, and can monitor the first heat dissipation controller 101's control of the third winding 104 and the fourth winding 204.

[0069] refer to Figure 8 , Figure 8An electric motor 1110 according to an embodiment of this application is shown. The control components may include a first sensor group 410. The first sensor group 410 may also be referred to as a second sensor group or other numbered sensor group. The first sensor group 410 can be used to detect the first motor module 1.

[0070] Combination Figure 8 As shown, exemplarily, any control component includes a first controller 41, a monitoring module 8, and a first sensor group 410. The first controller is selectively electrically connected to the first winding 109 and / or the second winding 209. The first sensor group 410 and the first controller 41 are both electrically connected to the monitoring module 8. The monitoring module 8 is used to monitor the health status of the path where it is located via the first sensor group 410. The monitoring module 8 in the first control component 100 and the monitoring module 8 in the second control component 200 are electrically connected to interact with each other's monitored health status. When the monitoring module 8 in any control component determines, based on the health status from the other monitoring module 8, that the path where the other monitoring module is located has lost the ability to drive the first motor module 1, it controls the first controller 41 in the control component where the monitoring module is located to simultaneously enable the paths between the first controller 41 and the first winding 109, and between the first controller 41 and the second winding 209. The monitoring module 8 is relatively independent of the first controller 41; when the first controller 41 fails, the monitoring module 8 can still operate normally. The electric motor 1110 utilizes the monitoring module 8 to more safely ensure that if the first controller 41 fails, the other controller can reliably control the output of the two windings to provide complete power.

[0071] refer to Figure 8 When the electric motor 1110 includes multiple controllers and multiple monitoring modules 8, enhanced collaboration capabilities are needed, and control safety is desired. The electric motor 1110 may include multiple communication lines 300. For example, two monitoring modules 8 can communicate through two other communication lines 300 of different types, which can avoid common-mode failures and enable functions such as data verification. Specifically, one of these two communication lines 300 can be used for IO monitoring (input / output monitoring), and the other for redundant communication.

[0072] For example, the first monitoring module 105 communicates with the first heat dissipation controller 101 through two other communication lines 300 of different types, and the second monitoring module 205 communicates with the second heat dissipation controller 201 through two other communication lines 300 of different types. The monitoring module 8 can be safely and reliably connected to the heat dissipation controller.

[0073] For example, the first monitoring module 105 communicates with the first power controller 106 through two other communication lines 300 of different types. The second monitoring module 205 communicates with the second power controller 206 through two other communication lines 300 of different types. The monitoring module 8 can be reliably connected to the power controller. When the heat dissipation circuit 10 driven by the second motor module 2 is thermally coupled to the control component to dissipate heat for the control component, the electric motor 1110 can coordinate the operation of different controllers and coordinate the heat dissipation circuit 10 to dissipate heat for the first motor module 1 and the operating control component.

[0074] To improve coordination between the two paths of the cross-linking control circuit, the electric motor 1110 may include additional communication lines 300, through which the two controllers can be connected. For example, the first power controller 106 and the second power controller 206 communicate via two different types of communication lines 300; furthermore, more types of communication methods can be implemented. Using two or more communication methods can avoid common-mode failures and enable data verification, allowing for the determination of the validity of command signals and information. For example, each piece of information may include a timestamp. For example, data from healthy communication lines 300 may be selected based on the health status of each communication line 300, and health status may be determined based on, for example, error frames or packet loss rate.

[0075] Two communication lines 300 can be configured between the first power controller 106 and the second power controller 206. One is used for I / O monitoring, specifically for transmitting watchdog signals; the other can be used for redundant communication.

[0076] Optionally, the communication line 300 can be used to implement SPI communication, CAN communication, SCI or 485 communication, but is not limited to these.

[0077] For example, the first controller 41 is configured to monitor its own first health state. The monitoring module 8 is configured to monitor the second health state of the path in which the monitoring module is located via the first sensor group 410. The second health state can characterize the health state related to the power path. The first designated module can be considered to be at least one of the monitoring module 8 and the first controller 41. The power state can be considered to be at least one of the first health state and the second health state. Furthermore, the first designated module in the first control component 100 and the first designated module in the second control component 200 are electrically connected for exchanging power states.

[0078] Based on the configuration of multiple communication lines 300, the control component can specifically execute step S210. Specifically, when any control component determines, based on the first health status of the first controller 41 and / or the second health status of the monitoring module 8, that the other control component has lost its ability to drive the first motor module 1, step S110 can be executed to control the first controller 41 in this control component to simultaneously enable the pathways between the first controller 41 and the first winding 109, and between the first controller 41 and the second winding 209. On the one hand, based on different configurations, a variety of control methods can be achieved; on the other hand, overall reliable control can still be maintained after a partial failure.

[0079] refer to Figure 6 For example, the first controller 41 in any control component can be selectively electrically connected to the first winding 109 and / or the second winding 209 via the first selector 31.

[0080] When any control component determines that another control component has lost the ability to drive the first motor module 1, it sends a first enable signal to the first selector 31 in the other control component, so that the first selector 31 performs the gating operation corresponding to the first enable signal, so that the first controller 41 in this control component simultaneously connects the first winding 109 and the second winding 209.

[0081] Optionally, in the control components, the monitoring module 8 and / or the first controller 41 can send an enable signal.

[0082] refer to Figure 3 , Figure 3 The steps of the control method in an embodiment of this application are illustrated. Exemplarily, step S210, in which the control component is configured to execute, may include steps S211 to S213, with monitoring module 8 serving as the first designated module. Step S211: Receiving power status from another monitoring module 8. Step S212: Determining whether the path containing the other monitoring module 8 has lost the ability to drive the first motor module 1. If the ability is lost, step S213: Sending a first enable signal to the first selector 31 in the control component containing the other monitoring module 8.

[0083] Step S210 may also include step S217, determining the received enable signal. When only the monitoring module 8 is connected to the enable terminal of the selector, the selector can perform the gating operation corresponding to the first enable signal. Specifically, step S110 may include step S111, where the first controller 41 in the control component where the monitoring module 8 is located simultaneously connects the first winding 109 and the second winding 209.

[0084] For example, if the ability has not been lost, step S121 can still be performed.

[0085] Specifically, when a monitoring module 8 in any control component determines, based on the power status (e.g., a second health status) from another monitoring module 8, that the path of that other monitoring module 8 has lost its ability to drive the first motor module 1, it sends a first enable signal to the first selector 31 in the control component containing that other monitoring module 8. This causes the first selector 31 to perform a selection operation corresponding to the first enable signal, simultaneously energizing the first controller 41 in the control component containing this monitoring module 8, connecting both the first winding 109 and the second winding 209. By utilizing a switching circuit to select the path in response to the first enable signal, the instructions of the monitoring module 8 can be reliably executed.

[0086] Combination Figure 3 and Figure 9 As shown, where, Figure 9 The signal flow in the electric motor 1110 of this application embodiment is shown. Step S210 may also include steps S214 to S217. The monitoring module 8 and the first controller 41 may serve as the first designated module.

[0087] Step S214: Receive power status from another first controller 41. Step S215: Determine whether the path of the other first controller 41 has lost the ability to drive the first motor module 1. If the ability is lost, step S216: Send a second enable signal to the first selector 31 in the control component of the other first controller 41. Exemplarily, if the ability is not lost, step S121 can still be executed. Step S217: Determine the received enable signal. Both the monitoring module 8 and the first controller 41 are connected to the enable terminal of the controller. When the selector receives consistent first and second enable signals, it can perform the selection operation corresponding to either the first or second enable signal. A shorter determination time can be set to determine if consistent first and second enable signals are received simultaneously. Step S110 may include step S111.

[0088] The controller's control signal can be a pulse width modulation signal, or PWM signal for short. For example Figure 9As shown, the first power controller 106 normally sends a PWMA1 signal to the first power selector 107. The first health status of the first power controller 106, as the power status, is transmitted to the second monitoring module 205 via the first monitoring module 105. The second monitoring module 205 reports the first health status to the second power controller 206 and also sends a first enable signal. The second power controller 206 normally sends a PWMB1 signal to the second power selector 207. After receiving a failure signal from the first power controller 106, it can send a second enable signal to reliably control the first power selector 107. Then, the second power controller 206 continues to send a PWMB1 signal to the second power selector 207 and also sends a PWMB2 signal to the first power selector 107.

[0089] The control unit contains many independent devices and signals. Faulty devices may send fault signals, so it is necessary to accurately identify the signals.

[0090] For example, any monitoring module 8 is further configured to report a specified monitoring status to the first controller 41 in the control component where the monitoring module 8 is located. The specified monitoring status is either a second health status monitored by the monitoring module 8 or a second health status received by the monitoring module 8 from another monitoring module 8. The first controller 41 in the first control component 100 is electrically connected to the first controller 41 in the second control component 200 to exchange the specified information received by each. The first controller 41 in any control component is further configured to send a second enable signal to the first selector 31 in the control component where the other first controller 41 is located when it is determined, based on the specified information from the other first controller 41, that the path of the other first controller 41 has lost the ability to drive the first motor module 1. Upon receiving the consistent first and second enable signals, the other first selector 31 performs a gating operation corresponding to either enable signal, so that the first controller 41 in the other control component simultaneously connects the first winding 109 and the second winding 209. Through the cross-control of the monitoring module 8 and the first controller 41, single-point misjudgment can be avoided.

[0091] The electric motor 1110 may include a first sensor group 410 and a fourth sensor group 440. The number and type of sensors included in the first sensor group 410 and the fourth sensor group 440 may be the same or different. The first sensor group 410 is connected to the monitoring module 8, and the fourth sensor group 440 is connected to the first controller 41. The controller can calculate and output control signals based on the sensor signals.

[0092] refer to Figure 8The electric motor 1110 also includes a second sensor group 420 and a third sensor group 430. The third sensor group 430 may be of the same type as at least some of the sensors in the second sensor group 420. The third sensor group 430 includes sensors for detecting fluid in the corresponding cooling circuit 10, specifically including at least one of a temperature sensor and a pressure sensor. The third sensor group 430 is electrically connected to the second controller 42. The second sensor group 420 is electrically connected to the monitoring module 8.

[0093] Optionally, the first sensor group 410 and the fourth sensor group 440 may each include at least one of a bus voltage sensor, a three-phase current sensor, and a position sensor.

[0094] Furthermore, to ensure the accuracy of the monitoring signals, at least some sensors in the first sensor group 410 are relatively independent and heterogeneous from those in the fourth sensor group 440; at least some sensors in the second sensor group 420 are relatively independent and heterogeneous from those in the third sensor group 430. The heterogeneous sensors, while possessing the same function, enable a safer and more accurate determination of the state of the detected object through the signals from both sets of sensors. The relatively independent and heterogeneous sensors monitoring the same object facilitate safer and more accurate detection of the states of the first motor module 1 and the second motor module 2.

[0095] Understandably, Figure 8 When the first sensor group 410 includes multiple sensors, some of the sensors can also be referred to as a sensor group. The monitoring module 8 can be connected to multiple sensor groups.

[0096] For example, the second motor module 2 is a cooling motor. Each control component also includes a second controller 42 and a second sensor group 420. The second controller 42 can be selectively electrically connected to the third winding 104 and / or the fourth winding 204. Both the second sensor group 420 and the second controller 42 are electrically connected to the monitoring module 8. The monitoring module 8 is also used to monitor the heat dissipation status of the path where it is located via the second sensor group 420 and to notify the other monitoring module 8 of the heat dissipation status. When the monitoring module 8 in any control component determines, based on the heat dissipation status from the other monitoring module 8, that the path where the other monitoring module 8 is located has lost its ability to drive the cooling motor, it controls the second controller 42 in the control component where it is located to simultaneously enable the paths between the second controller 42 and the third winding 104, and between the second controller 42 and the fourth winding 204. When the electric motor 1110 internally dissipates heat autonomously, it can ensure maximum heat dissipation capacity, and the operating temperature of the electric motor 1110 can be well controlled, making it suitable for fields with high safety requirements, such as aviation.

[0097] Based on the configuration of multiple communication lines 300, different signal transmission methods can be achieved. When any control component is configured to determine, based on the third health status of the second controller 42 of another control component and / or the fourth health status of the monitoring module 8, that another control component has lost the ability to drive the cooling motor, it controls the second controller 42 in this control component to simultaneously open the pathways between the second controller 42 and the third winding 104, and between the second controller 42 and the fourth winding 204.

[0098] Furthermore, the heat dissipation circuit 10 driven by the second motor module 2 can dissipate heat for the operating control components. Exemplarily, the second controller 42 in any control component can be selectively electrically connected to the third winding 104 and / or the fourth winding 204 via the second selector 32. The monitoring module 8 in any control component is also configured to send an enable signal to the second selector 32 in the control component containing the other monitoring module 8 when it is determined, based on the heat dissipation status from the other monitoring module 8, that the path containing the other monitoring module 8 has lost its heat dissipation capacity. This causes the second selector 32 to perform a selection operation corresponding to the enable signal, causing the second controller 42 in the control component containing this monitoring module 8 to simultaneously connect the third winding 104 and the fourth winding 204.

[0099] For example, if the first control component 100 fails, and both the first power controller 106 and the first heat dissipation controller 101 fail, the second power controller 206 can take over the first winding 109 and the second winding 209 to ensure full power output of the first motor module 1. Meanwhile, the second heat dissipation controller 201 can take over the third winding 104 and the fourth winding 204 to ensure full power output of the second motor module 2.

[0100] For example, the first controller 41 and the monitoring module 8 in any control component are independent and heterogeneous; the second controller 42 and the monitoring module 8 in any control component are independent and heterogeneous. This helps to avoid common mode failure of the monitoring module 8 when the controller fails, and enables cross-link control to be achieved using the signal of the monitoring module 8, ensuring complete power output.

[0101] refer to Figure 9 For example, the health status of the first controller can be sent to a first monitoring module connected to it. The first monitoring module can then transmit the received health status to a second monitoring module. The second monitoring module makes a judgment based on the health status, for example, determining that a first enable signal needs to be sent to the first selector to disconnect the first controller and connect the second controller. The second monitoring module also transmits the health status to the second controller. While continuing to send a first control signal to the second selector in its own path, the second controller also sends a second control signal to the first selector in the other path. The second controller can simultaneously control both windings in the event of a failure of the first controller.

[0102] For example, the control signal can be a PWM signal. (See reference...) Figure 8 When the first power controller 106 is functioning normally, it can send a PWMA signal to the first power driver 108. When the second power controller 206 is functioning normally, it can send a PWMB signal to the second power driver 208. Combined with... Figure 9 As shown, if the first power controller 106 loses its ability to drive the first motor module 1, the second power controller 206 maintains the first control signal PWMB1 and also sends the second control signal PWMB2.

[0103] Optionally, the first health status of the first power controller 106 can be directly transmitted to the second power controller 206.

[0104] refer to Figure 10 , Figure 10 An electric motor 1110 according to an embodiment of this application is shown. In some embodiments, the first controller 41 may serve as a first designated module. The first power controller 106 may be connected to the enable terminal of the second power selector 207; the second power controller 206 may be connected to the enable terminal of the first power selector 107. Step S214: Receive power status from another first controller 41. Step S215: Determine whether the path of the other first controller 41 is incapable of driving the first motor module 1. If the incapacity is determined to be lost based on the power status, step S216: Send a second enable signal to the first selector 31 in the control component of the other first controller 41. Exemplarily, if the incapacity is not lost, step S121 may still be executed. Step S217: Determine that the second enable signal has been received. Furthermore, step S110 may include step S111. When the monitoring module 8 fails, the first controller 41 can also control the operation of both windings.

[0105] In other embodiments, combined with Figure 6 As shown, the second controller 42 is configured to monitor its own third health state. The monitoring module 8 is also configured to monitor the fourth health state of the path in which it resides via the second sensor group 420. The fourth health state characterizes the health state related to the heat dissipation path. The second designated module can be at least one of the monitoring module 8 and the second controller 42. The heat dissipation state is at least one of the third and fourth health states.

[0106] The second designated module in the first control component 100 and the second designated module in the second control component 200 are electrically connected for exchanging heat dissipation status.

[0107] The second designated module in any control component is used to control the second controller 42 in the control component containing the second designated module to simultaneously select the paths between the second controller and the third winding 104, and between the second controller 42 and the fourth winding 204, when it is determined from the heat dissipation status of another second designated module that the path of the other second designated module has lost the ability to drive the cooling motor. If the first control component 100 loses the ability to drive the cooling motor, the second control component 200 can simultaneously control the two windings of the cooling motor through the second heat dissipation selector 202 of its own path and the first heat dissipation selector 102 of the other path to achieve complete power output and ensure complete heat dissipation capability.

[0108] In an optional embodiment, the control component controls the second motor module 2. Exemplarily, the control component controls the first motor module 1 and the second motor module 2.

[0109] The second controller 42 can send a third enable signal, and the monitoring module 8 can also send a fourth enable signal. Either control component, upon determining that another control component has lost the ability to drive the cooling motor, sends an enable signal to the second selector 32 in that other control component. This causes the second selector 32 to perform the selection operation corresponding to the enable signal, simultaneously energizing the third winding 104 and the fourth winding 204 by the second controller 42 in this control component. The reliable operation of the cooling motor is ensured by coordinating the two enable signals to determine the selection.

[0110] refer to Figure 2 The steps that the electric motor 1110 can perform may also include steps S411 to S413.

[0111] For example, after establishing pathways between this control component and the first winding 109, and between this control component and the second winding 209, any one of the control components is further configured to: Step S411, obtain the current electrical position of the initial winding connected to this control component in the initial state; Step S412, determine the mapped electrical position of the newly connected winding based on the current electrical position and the electrical positional relationship between the first winding 109 and the second winding 209; the newly connected winding is a winding not connected to this control component in the initial state; Step S413, determine a control signal for controlling the newly connected winding based on the mapped electrical position of the newly connected winding. Step S122 can also be executed to control the newly connected winding using the control signal.

[0112] In the first motor module 1, the first winding 109 and the second winding 209 can adopt a 180° symmetrical structure. During the design and manufacturing process, it is ensured that the electrical zero position of the two windings is consistent or has a small deviation, such as within 5°.

[0113] The rotor position corresponding to the minimum induced voltage in the winding is the electrical zero position. Furthermore, the electrical position of the winding at different times can be determined or calibrated based on the electrical zero position.

[0114] For the specific first motor module 1 in which it is applied, the electrical position relationship between the two windings can be predetermined. Therefore, based on the current electrical position of the normal initial winding, a mapped electrical position that can be used to control the newly connected winding can be obtained, and the two windings can achieve good coordination.

[0115] refer to Figure 4 , Figure 4 The steps that the electric motor 1110 of this application embodiment can perform are shown. Before performing step S210, a step of determining different signals may be included.

[0116] Exemplarily, the first control component 100 and the second control component 200 communicate using at least a first communication method and a second communication method. Either the first control component 100 or the second control component 200 is further configured to:

[0117] Step S511: A first signal transmitted from another control component via a first communication method and a second signal transmitted from another control component via a second communication method are received. The first signal and the second signal correspond to the same event.

[0118] Step S512: Verify the consistency between the first signal and the second signal.

[0119] When the first signal and the second signal are consistent, in step S513, either the first signal or the second signal is selected to be accepted. For example, the first signal is accepted.

[0120] When the first signal and the second signal are inconsistent, in step S514, the health of the first communication method and the second communication method is determined, and the health of each communication method is obtained.

[0121] Step S515: Based on the health status of each communication method, determine the target communication method with higher health status, and select the signal corresponding to the target communication method for acceptance. Then, based on the accepted signal, determine whether the path containing another control component has lost its ability to drive the first motor module 1.

[0122] Any control component is also used to disconnect the connection between the first controller 41 and the first selector 31 in the control component when it is determined that the control component has lost the ability to drive the first motor module 1.

[0123] For example, the first control component 100 loses its ability to drive the first motor module 1, and then the second control component 200 performs the above steps. (See reference...) Figure 5 , Figure 5 The steps that the electric motor 1110 of this application embodiment can perform are shown. Specifically, the first control component 100 can perform steps S611 and S612. In some other embodiments, the second control component 200 can also perform steps S611 and S612 when it loses the ability to drive the first motor module 1.

[0124] Step S611: Determine whether the path where the first designated module is located has lost the ability to drive the first motor module 1. For example, the first monitoring module 105, as the first designated module, can determine whether the first power controller 106 has lost the ability to drive the first motor module 1. For example, the first power controller 106, as the first designated module, can determine whether the path where it is located has lost the ability to drive the first motor module 1 through the fourth sensor group 440.

[0125] If incapacity is determined, step S612 can be executed to disconnect the connection between the first controller 41 and the first selector 31 in the control component containing this first designated module. (See reference) Figure 9 The first monitoring module 105 can send a cut-off signal to the first controller 41. The cut-off signal can also be sent to other devices of the first control component 100 to disconnect from the first controller 41.

[0126] After step S612, the first controller 41 can be prevented from transmitting the error control signal to the first selector 31 or the first winding 109; the first controller 41 can be prevented from transmitting the error enable signal to the second selector 32.

[0127] Optionally, communication between the first controller 41 and another first controller 41 can also be cut off. By cutting off the signal transmission path of the first controller 41, it is beneficial to avoid the faulty first controller 41 sending out erroneous signals, and to prevent other normal devices from malfunctioning based on erroneous signals. Even with a partial fault, the electric motor 1110 can safely achieve dual-winding power output.

[0128] Combination Figure 6 and Figure 11 As shown, Figure 11 The control path of the electric motor 1110 in this embodiment is shown. The electric motor 1110 may also include a driver 5, and each selector can be connected to the motor through the driver 5. Specifically, different paths are respectively provided with a first power driver 108, a first heat dissipation driver 103, a second power driver 208, and a second heat dissipation driver 203.

[0129] The electric motor 1110 may also include a power device 6 and a power supply 7. For example, a first controller 41, a first selector 31, a driver 5, a power device 6, and a first winding 109 are connected in sequence, and the power supply 7 is also used to supply power to the power device 6. The monitoring module 8 can be used to control the driver 5 or the power supply 7, for example, to stop driving or stop power transmission, and can shut off control of the first winding 109.

[0130] refer to Figure 12 , Figure 12 An aircraft according to an embodiment of this application is shown. This application provides an electric propulsion system 1100, which can be applied to an aircraft 1000.

[0131] Exemplarily, the electric propulsion system 1100 includes a propeller 1120 and an electric motor 1110, with the electric motor 1110 being driveably connected to the propeller 1120. The electric motor 1110 can be the same as the electric motor 1110 described in the previous embodiment. This electric propulsion system 1100 operates reliably during operation; even if some components fail, it can still control the propeller 1120 to operate at full power, providing sufficient thrust to ensure the safety of the aircraft 1000. Furthermore, the electric propulsion system 1100 can independently dissipate heat, further reducing the failure rate and extending its service life at a suitable operating temperature.

[0132] The aircraft 1000 according to the embodiments of this application includes the aforementioned electric propulsion system 1100. The aircraft 1000 can better avoid the flight risks of power imbalance guide columns, and the aircraft 1000 has good safety.

[0133] The aircraft 1000 may include a fuselage 1200. Multiple electric propulsion systems 1100 may be disposed at different locations on the fuselage 1200. Exemplarily, the aircraft 1000 may be a vertical takeoff and landing (VTOL) aircraft, such as an eVTOL. The actual attitude of the aircraft 1000 may be independent of... Figure 12 The pose is limited by the spatial rectangular coordinate system XYZ.

[0134] refer to Figures 2 to 4 This application provides a control method S1000 for an electric motor 1110. This control method S1000 can be applied to any control component of the electric motor 1110 in the aforementioned embodiments.

[0135] The control method S1000 may include step S210. The initial winding may be controlled when it is detected that the path containing another control component has not lost its ability to drive the first motor module 1.

[0136] Control method S1000 includes: when it is detected that the path of another control component has lost its ability to drive the first motor module 1, simultaneously selecting the paths between this control component and the first winding 109, and between this control component and the second winding 209, so as to simultaneously drive both windings of the first motor module 1. This control method S1000 can cope with sudden failures and can still achieve full power output when the applied electric motor 1110 experiences a partial controller failure.

[0137] For example, the control method S1000 further includes: step S411, obtaining the current electrical position of the initial winding connected to the control component in the initial state; step S412, determining the mapped electrical position of the newly connected winding based on the current electrical position and the electrical position relationship between the first winding 109 and the second winding 209; the newly connected winding is a winding that was not connected to the control component in the initial state; step S413, determining a control signal for controlling the newly connected winding based on the mapped electrical position of the newly connected winding, and using the control signal to control the newly connected winding.

[0138] The control method S1000 can ensure the smooth operation of the first motor module 1; the steps of the control method S1000 make the control components easy to configure and the first motor module 1 easier to control to achieve full power output, avoiding the loss of half power.

[0139] For example, the control method S1000 further includes the following steps. Step S511: receiving a first signal transmitted from another control component via a first communication method and a second signal transmitted from another control component via a second communication method; the first signal and the second signal are signals corresponding to the same event; Step S512: verifying the consistency of the first signal and the second signal.

[0140] In some cases, the communication line 300 of the electric motor 1110 may be operating normally. In this case, if the first signal and the second signal are consistent, step S513 selects to accept either the first signal or the second signal. For example, the first signal transmitted via the first communication method can be accepted. Both the first signal and the second signal can be signals related to the power status.

[0141] In some cases, such as abnormal IO monitoring or redundant communication, when the first and second signals are inconsistent, step S514 determines the health of the first and second communication methods to obtain the health of each communication method. For example, if the packet loss rate of the first communication method is high, or the number of error frames is high, or the timestamp is disordered, then the health of the first communication method is low.

[0142] Next, in step S515, based on the health status of each communication method, a target communication method with a higher health status is determined, and the signal corresponding to the target communication method is selected for acceptance. For example, the second communication method has a higher health status, so the second signal is accepted. For example, if the first communication method recovers to a higher health status, the updated first signal can then be accepted again.

[0143] The control method S1000 of this application embodiment is based on a control component with at least one pair of redundant communication, which can achieve safer and more accurate control and is beneficial for eliminating interference from unhealthy signals. It can maintain the cooperative operation of two control components when it is not necessary for them to be controlled independently by a single control component; and it can ensure that one control component can control the dual windings of the first motor module 1 to achieve complete power output when needed.

[0144] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. An electric motor, characterized in that, The electric motor includes a first motor module, a first control component, and a second control component; The first motor module has a first winding and a second winding; the first control component can be selectively electrically connected to the first winding and / or the second winding; The second control component may be selectively electrically connected to the first winding and / or the second winding; The first control component is used to select the path between the first control component and the first winding in the initial working state, and the second control component is used to select the path between the second control component and the second winding in the initial working state, so that the first motor module outputs power under the cooperative drive of the first winding and the second winding; Either the first control component or the second control component is configured to simultaneously select the paths between the control component and the first winding, and between the control component and the second winding, when it is detected that the path of the other control component has lost the ability to drive the first motor module, so as to simultaneously drive the two windings of the first motor module.

2. The electric motor according to claim 1, characterized in that, Each control component includes a first controller, a monitoring module, and a first sensor group; The first controller can be selectively electrically connected to the first winding and / or the second winding; both the first sensor group and the first controller are electrically connected to the monitoring module. The first controller is configured to monitor its own first health status; and / or the monitoring module is configured to monitor the second health status of the path in which the monitoring module is located through the first sensor group. Any control component is configured to, when it is determined, based on a first health state from a first controller of another control component and / or a second health state from a monitoring module, that the other control component has lost the ability to drive the first motor module, control the first controller in this control component to simultaneously enable the pathway between the first controller and the first winding, and between the first controller and the second winding.

3. The electric motor according to claim 2, characterized in that, The first controller in any control component can be selectively electrically connected to the first winding and / or the second winding via a first selector; When any control component determines that the other control component has lost the ability to drive the first motor module, it sends a first enable signal to a first selector in the other control component, so that the first selector performs a gating operation corresponding to the first enable signal, so that the first controller in this control component simultaneously turns on the first winding and the second winding.

4. The electric motor according to claim 3, characterized in that, The first selector in the other control component is specifically used to receive a first enable signal from the monitoring module in any one of the control components and a second enable signal from the first controller in any one of the control components, and when receiving the consistent first enable signal and second enable signal, to perform a gating operation corresponding to any one enable signal, so that the first controller in any one of the control components simultaneously turns on the first winding and the second winding.

5. The electric motor according to claim 3, characterized in that, Any control component is also configured to disconnect the connection between the first controller and the first selector in the control component when it is determined that the control component has lost the ability to drive the first motor module.

6. The electric motor according to claim 1, characterized in that, After simultaneously establishing pathways between this control component and the first winding, and between this control component and the second winding, each of the control components is further configured to: Obtain the current electrical position of the initial winding connected to this control component in its initial state; Based on the current electrical position and the electrical position relationship between the first winding and the second winding, the mapped electrical position of the newly connected winding is determined; the newly connected winding is the winding that was not connected in the initial state of this control component; Based on the mapped electrical position of the newly connected winding, a control signal for controlling the newly connected winding is determined, and the newly connected winding is controlled using the control signal.

7. The electric motor according to claim 1, characterized in that, The first control component and the second control component communicate using at least a first communication method and a second communication method; either the first control component or the second control component is further configured to: The system receives a first signal transmitted from another control component via the first communication method, and a second signal transmitted from the other control component via the second communication method; the first signal and the second signal correspond to the same event. Verify the consistency between the first signal and the second signal; When the first signal and the second signal are consistent, either the first signal or the second signal shall be accepted. When the first signal and the second signal are inconsistent, determine the health of the first communication method and the second communication method, and obtain the health of each communication method. Based on the health status of each communication method, the target communication method with higher health status is determined, and the signal corresponding to the target communication method is selected for acceptance.

8. The electric motor according to claim 2, characterized in that, The first motor module is a power motor; the electric motor also includes a cooling motor, a first cooling circuit, and a second cooling circuit. The cooling motor is used to drive the liquid circulation in the first cooling circuit and the second cooling circuit; the first cooling circuit is used to dissipate heat for the first motor module and the first control component; the second cooling circuit is used to dissipate heat for the first motor module and the second control component. The cooling motor has a third winding and a fourth winding; the first control component can be selectively electrically connected to the third winding and / or the fourth winding; The second control component may be selectively electrically connected to the third winding and / or the fourth winding; The first control component is used to select the path between the first control component and the third winding in the initial working state, and the second control component is used to select the path between the second control component and the fourth winding in the initial working state. Either the first control component and the second control component is further configured to simultaneously select the paths between the control component and the third winding, and between the control component and the fourth winding, when it is detected that the path of the other control component has lost the ability to drive the cooling motor, so as to simultaneously drive the two cooling windings of the cooling motor.

9. The electric motor according to claim 8, characterized in that, Each control component also includes a second controller and a second sensor group; The second controller can be selectively electrically connected to the third winding and / or the fourth winding; both the second sensor group and the second controller are electrically connected to the monitoring module. The second controller is configured to monitor its own third health status; and / or, the monitoring module is further configured to monitor the fourth health status of the path in which the monitoring module is located through the second sensor group; When any one of the control components is configured to determine, based on a third health status from the second controller of the other control component and / or a fourth health status from the monitoring module, that the other control component has lost the ability to drive the cooling motor, control the second controller in this control component to simultaneously enable the pathways between the second controller and the third winding, and between the second controller and the fourth winding.

10. The electric motor according to claim 9, characterized in that, The second controller in any control component can be selectively electrically connected to the third winding and / or the fourth winding via a second selector; Any one of the control components is configured to send an enable signal to a second selector in the other control component when it is determined that the other control component has lost the ability to drive the cooling motor, so that the second selector performs a gating operation corresponding to the enable signal, thereby causing the second controller in this control component to simultaneously connect the third winding and the fourth winding.

11. The electric motor according to claim 9, characterized in that, The first controller and monitoring module in any control component are independent and heterogeneous; and / or, the second controller and monitoring module in any control component are independent and heterogeneous.

12. A control method for an electric motor, characterized in that, The control method is applied to any control component of the electric motor as described in any one of claims 1 to 11; the control method includes: Monitor whether the path containing another control component has lost its ability to drive the first motor module; When it is detected that the path of another control component has lost the ability to drive the first motor module, the path between this control component and the first winding, and between this control component and the second winding, is simultaneously activated to drive both windings of the first motor module at the same time.

13. The control method according to claim 12, characterized in that, The control method further includes: Obtain the current electrical position of the initial winding connected to this control component in its initial state; Based on the current electrical position and the electrical position relationship between the first winding and the second winding, the mapped electrical position of the newly connected winding is determined; the newly connected winding is the winding that was not connected in the initial state of this control component; Based on the mapped electrical position of the newly connected winding, a control signal for controlling the newly connected winding is determined, and the newly connected winding is controlled using the control signal.

14. An electric propulsion system, characterized in that, Includes an electric motor as described in any one of claims 1 to 11.

15. An aircraft, characterized in that, Including the electric propulsion system as described in claim 14.

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