CN111555577A - Double-stator motor, motor control system and control method - Google Patents

Double-stator motor, motor control system and control method Download PDF

Info

Publication number
CN111555577A
CN111555577A CN202010450560.2A CN202010450560A CN111555577A CN 111555577 A CN111555577 A CN 111555577A CN 202010450560 A CN202010450560 A CN 202010450560A CN 111555577 A CN111555577 A CN 111555577A
Authority
CN
China
Prior art keywords
motor
drive
rotating speed
stator
preset
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202010450560.2A
Other languages
Chinese (zh)
Other versions
CN111555577B (en
Inventor
冯艳丽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Weichai Power Co Ltd
Original Assignee
Weichai Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Weichai Power Co Ltd filed Critical Weichai Power Co Ltd
Priority to CN202010450560.2A priority Critical patent/CN111555577B/en
Publication of CN111555577A publication Critical patent/CN111555577A/en
Application granted granted Critical
Publication of CN111555577B publication Critical patent/CN111555577B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H02K16/04—Machines with one rotor and two stators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/20—Controlling the acceleration or deceleration
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
    • H02P25/18—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

The embodiment of the invention provides a double-stator motor, a motor control system and a control method, wherein the double-stator motor comprises a first stator component, a second stator component, a rotor component and a motor control unit; the winding of the first stator component adopts a round wire, and the winding of the second stator component adopts a flat wire; the rotor assembly is fixed on the output shaft of the motor and penetrates through the first stator assembly and the second stator assembly; the motor control unit is electrically connected with the first stator component and the second stator component and is used for controlling the first stator component to drive the rotor component to drive the output shaft to rotate so as to enable the motor to operate under a high-speed working condition; or, the second stator component is controlled to drive the rotor component to drive the output shaft to rotate, so that the motor operates at a low-speed working condition, the problem that when the alternating current frequency of the motor is very high, the loss of the flat wire winding is high due to the skin effect is solved, and the performance of the motor is improved.

Description

Double-stator motor, motor control system and control method
Technical Field
The invention relates to the technical field of motors, in particular to a double-stator motor, a motor control system and a control method.
Background
In recent years, the field of new energy vehicles is rapidly developed, competition in the industry is increased day by day, and the requirement on the power density of the new energy vehicles is higher and higher. From the technical point of view, in order to improve the power density of a main driving system, a flat wire technical scheme is proposed and developed.
With the progress of the technology, the flat wire winding motor is widely applied and popularized due to the advantages that the slot filling rate is high, the heat conductivity is good, and the torque output performance and the heat dissipation performance are higher than those of the round wire winding motor. However, the skin effect of the flat wire winding motor at high speed is obvious, which causes the ac loss of the flat wire winding to be higher than that of the round wire winding, and the application of the flat wire winding under the high-speed working condition is limited.
Disclosure of Invention
The invention aims to provide a double-stator motor, a motor control system and a control method, which solve the problem that when the alternating current frequency of the motor is very high, the loss of a flat wire winding is high due to the skin effect.
In a first aspect, an embodiment of the present invention provides a double-stator motor, including:
the stator comprises a first stator component and a second stator component, wherein the winding of the first stator component adopts a round wire, and the winding of the second stator component adopts a flat wire;
the rotor assembly is fixed on the output shaft of the motor and penetrates through the first stator assembly and the second stator assembly;
the motor control unit is electrically connected with the first stator component and the second stator component and is used for controlling the first stator component to drive the rotor component to drive the output shaft to rotate so as to enable the motor to operate under a high-speed working condition; or,
and controlling the second stator assembly to drive the rotor assembly to drive the output shaft to rotate so as to enable the motor to operate under a low-speed working condition.
In a possible design, the motor control unit is further configured to control the first stator assembly and the second stator assembly to simultaneously drive the rotor assembly to drive the output shaft to rotate, so that the torque power of the motor exceeds a preset power threshold.
In one possible design, an outer diameter of the first stator assembly is less than or equal to an inner diameter of the second stator assembly; alternatively, the outer diameter of the second stator assembly is less than or equal to the inner diameter of the first stator assembly.
In one possible design, a cooling device is further included, which is installed at the end of the double stator motor near the winding.
The cooling device is used for cooling the first stator assembly and the second stator assembly of the double-stator motor.
In one possible design, the cooling device is an oil injection cooling device, the oil injection cooling device includes an oil inlet conduit and an oil injection hole, the oil inlet conduit is used for guiding cooling oil, and the oil injection hole is used for injecting the cooling oil on the double-stator motor.
In one possible design, the motor control unit includes: a first motor controller and a second motor controller;
the first motor controller is electrically connected with the first stator assembly and the second motor controller is electrically connected with the second stator assembly.
In a second aspect, an embodiment of the present invention provides a motor control system, including the dual-stator motor according to the first aspect, further including: an on-vehicle electronic control unit ECU;
the ECU is electrically connected with the first motor controller and the second motor controller respectively; the ECU is configured to:
acquiring the required torque, the required power and the rotating speed of the vehicle;
when the rotating speed is less than or equal to a first preset rotating speed and the required torque of the vehicle is less than or equal to a first preset torque, generating a first motor control signal and transmitting the first motor control signal to a second motor controller, so that the second motor controller controls a second stator assembly to drive a rotor assembly to drive an output shaft to rotate, and the motor runs under a low-speed working condition;
when the rotating speed is less than or equal to a first preset rotating speed and the required torque of the vehicle is greater than a first preset torque, generating a second motor control signal, and respectively transmitting the second motor control signal to a first motor controller and a second motor controller, so that the first motor controller controls a first stator component to drive a rotor component to drive an output shaft to rotate and the second motor controller controls a second stator component to drive the rotor component to drive the output shaft to rotate, and the output torque of the motor is equal to the required torque;
when the rotating speed is greater than a first preset rotating speed and the rotating speed is less than or equal to a second preset rotating speed, if the required power of the vehicle is less than or equal to the first preset power, generating a third motor control signal and transmitting the third motor control signal to a second motor controller, so that the second motor controller controls a second stator assembly to drive a rotor assembly to drive an output shaft to rotate, and the motor operates in a low-speed working condition;
when the rotating speed is greater than a first preset rotating speed and the rotating speed is less than or equal to a second preset rotating speed, if the required power of the vehicle is greater than the first preset power, generating a fourth motor control signal, and respectively transmitting the fourth motor control signal to a first motor controller and a second motor controller, so that the first motor controller controls a first stator component to drive a rotor component to drive an output shaft to rotate and the second motor controller controls a second stator component to drive the rotor component to drive the output shaft to rotate, and the output power of the motor is equal to the required power;
when the rotating speed is greater than a second preset rotating speed and the rotating speed is less than or equal to a third preset rotating speed, if the required torque of the vehicle is less than or equal to a second preset torque, a fifth motor control signal is generated and transmitted to a first motor controller, so that the first motor controller controls a first stator assembly to drive a rotor assembly to drive an output shaft to rotate, the motor is enabled to operate in a high-speed working condition, and the second preset torque is less than the first preset torque;
when the rotating speed is greater than a second preset rotating speed and the rotating speed is less than or equal to a third preset rotating speed, if the required torque of the vehicle is greater than the second preset torque, generating a sixth motor control signal, and respectively transmitting the sixth motor control signal to a first motor controller and a second motor controller, so that the first motor controller controls a first stator component to drive a rotor component to drive an output shaft to rotate and the second motor controller controls a second stator component to drive the rotor component to drive the output shaft to rotate, and the output torque of the motor is equal to the required torque;
when the rotating speed is greater than a third preset rotating speed, if the required power of the vehicle is less than or equal to a second preset power, generating a seventh motor control signal and transmitting the seventh motor control signal to the first motor controller, so that the first motor controller controls the first stator assembly to drive the rotor assembly to drive the output shaft to rotate, and the motor operates in a high-speed working condition, wherein the second preset power is less than the first preset power;
when the rotating speed is greater than a third preset rotating speed, if the required power of the vehicle is greater than a second preset power, an eighth motor control signal is generated and is respectively transmitted to the first motor controller and the second motor controller, so that the first motor controller controls the first stator component to drive the rotor component to drive the output shaft to rotate and the second motor controller controls the second stator component to drive the rotor component to drive the output shaft to rotate, and the output power of the motor is equal to the required power.
In a third aspect, an embodiment of the present invention provides a motor control method applied to the ECU of the second aspect, including:
acquiring the required torque, the required power and the rotating speed of the vehicle;
when the rotating speed is less than or equal to a first preset rotating speed and the required torque of the vehicle is less than or equal to a first preset torque, generating a first motor control signal and transmitting the first motor control signal to a second motor controller, so that the second motor controller controls a second stator assembly to drive a rotor assembly to drive an output shaft to rotate, and the motor runs under a low-speed working condition;
when the rotating speed is less than or equal to a first preset rotating speed and the required torque of the vehicle is greater than a first preset torque, generating a second motor control signal, and respectively transmitting the second motor control signal to a first motor controller and a second motor controller, so that the first motor controller controls a first stator component to drive a rotor component to drive an output shaft to rotate and the second motor controller controls a second stator component to drive the rotor component to drive the output shaft to rotate, and the output torque of the motor is equal to the required torque;
when the rotating speed is greater than a first preset rotating speed and the rotating speed is less than or equal to a second preset rotating speed, if the required power of the vehicle is less than or equal to the first preset power, generating a third motor control signal and transmitting the third motor control signal to a second motor controller, so that the second motor controller controls a second stator assembly to drive a rotor assembly to drive an output shaft to rotate, and the motor operates in a low-speed working condition;
when the rotating speed is greater than a first preset rotating speed and the rotating speed is less than or equal to a second preset rotating speed, if the required power of the vehicle is greater than the first preset power, generating a fourth motor control signal, and respectively transmitting the fourth motor control signal to a first motor controller and a second motor controller, so that the first motor controller controls a first stator component to drive a rotor component to drive an output shaft to rotate and the second motor controller controls a second stator component to drive the rotor component to drive the output shaft to rotate, and the output power of the motor is equal to the required power;
when the rotating speed is greater than a second preset rotating speed and the rotating speed is less than or equal to a third preset rotating speed, if the required torque of the vehicle is less than or equal to a second preset torque, a fifth motor control signal is generated and transmitted to a first motor controller, so that the first motor controller controls a first stator assembly to drive a rotor assembly to drive an output shaft to rotate, the motor is enabled to operate in a high-speed working condition, and the second preset torque is less than the first preset torque;
when the rotating speed is greater than a second preset rotating speed and the rotating speed is less than or equal to a third preset rotating speed, if the required torque of the vehicle is greater than the second preset torque, generating a sixth motor control signal, and respectively transmitting the sixth motor control signal to a first motor controller and a second motor controller, so that the first motor controller controls a first stator component to drive a rotor component to drive an output shaft to rotate and the second motor controller controls a second stator component to drive the rotor component to drive the output shaft to rotate, and the output torque of the motor is equal to the required torque;
when the rotating speed is greater than a third preset rotating speed, if the required power of the vehicle is less than or equal to a second preset power, generating a seventh motor control signal and transmitting the seventh motor control signal to the first motor controller, so that the first motor controller controls the first stator assembly to drive the rotor assembly to drive the output shaft to rotate, and the motor operates in a high-speed working condition, wherein the second preset power is less than the first preset power;
when the rotating speed is greater than a third preset rotating speed, if the required power of the vehicle is greater than a second preset power, an eighth motor control signal is generated and is respectively transmitted to the first motor controller and the second motor controller, so that the first motor controller controls the first stator component to drive the rotor component to drive the output shaft to rotate and the second motor controller controls the second stator component to drive the rotor component to drive the output shaft to rotate, and the output power of the motor is equal to the required power.
In a fourth aspect, an embodiment of the present invention provides an electronic control unit, including: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executes computer-executable instructions stored by the memory, causing the at least one processor to perform the motor control method of the third aspect.
In a fifth aspect, the embodiment of the present invention provides a computer-readable storage medium, in which computer-executable instructions are stored, and when a processor executes the computer-executable instructions, the motor control method according to the third aspect is implemented.
According to the double-stator motor, the motor control system and the control method provided by the embodiment of the invention, the double-stator motor adopts two winding schemes of the flat wire and the round wire, wherein the winding schemes of the flat wire and the round wire are applied to different working conditions according to the required torque power and the vehicle speed range of the current vehicle. Through the demand torque that obtains the vehicle, demand power and rotational speed, and with all the predetermined rotational speeds of vehicle, predetermine power, predetermine the torque and compare, output different control signal, realize controlling first stator subassembly drive rotor subassembly and drive the output shaft and rotate, make the motor operation drive the output shaft and rotate at high-speed operating mode and control second stator subassembly drive rotor subassembly, make the motor operation at the purpose of low-speed operating mode, when the alternating current frequency of motor was very high, the higher problem of loss that the flat wire winding caused because of the skin effect has been solved. And the output performance and the heat dissipation performance of the motor can be optimized as far as possible within the full rotating speed range by adopting the double-stator structure, so that the optimal utilization of the motor efficiency and the improvement of the motor performance are realized.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural diagram of a round wire winding and a flat wire winding according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a double-stator motor according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a double-stator motor according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an oil injection cooling device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a motor control system according to an embodiment of the present invention;
FIG. 6 is a flow chart of a motor control method according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an electronic control unit according to an embodiment of the present invention.
Detailed Description
With the above figures, certain embodiments of the invention have been illustrated and described in more detail below. The drawings and the description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate it by those skilled in the art with reference to specific embodiments.
Fig. 1 is a schematic structural diagram of a round wire winding and a flat wire winding according to an embodiment of the present invention, where (a) in fig. 1 is a schematic structural diagram of a cross section of the round wire winding, and (b) in fig. 1 is a schematic structural diagram of a cross section of the flat wire winding. The motor stator winding generally adopts a round wire winding, and has the advantages of simple winding, good process and high heat dissipation efficiency. However, the output performance of the motor under different operating conditions is closely related to the structural parameters of the motor, the stator winding is an important factor influencing the output performance and efficiency of the motor, and different motor winding schemes have different influences on the performance of the motor. With the demand for higher and higher power density of motors, flat wire windings are also widely used in motors. The flat wire winding has the advantages of small copper consumption, good heat dissipation and neat and binding-free end part. However, when the frequency of the alternating current supplied to the flat wire winding is high, the flat wire winding causes a skin effect, and large eddy current loss exists, and the loss of the flat wire winding is larger than that of the round wire winding. Therefore, the flat wire motor is limited in its application under high-speed conditions.
The embodiment of the invention provides a double-stator winding motor based on comprehensive consideration of the winding characteristics of flat wires and round wires. The double-stator winding motor adopts two winding schemes of a flat wire winding and a round wire winding, wherein the flat wire winding scheme and the round wire winding scheme are used for obtaining the required torque power and the vehicle speed of the current vehicle, and the flat wire winding or the round wire winding is selected and applied according to the current working condition. Through the demand torque that obtains the vehicle, demand power and rotational speed, and with all the predetermined rotational speeds of vehicle, predetermine power, predetermine the torque and compare, output different control signal, realize controlling first stator subassembly drive rotor subassembly and drive the output shaft and rotate, make the motor operation drive the output shaft and rotate at high-speed operating mode and control second stator subassembly drive rotor subassembly, make the motor operation at the purpose of low-speed operating mode, when the alternating current frequency of motor was very high, the higher problem of loss that the flat wire winding caused because of the skin effect has been solved. And the output performance and the heat dissipation performance of the motor can be optimized as far as possible within the full rotating speed range by adopting the double-stator structure, so that the optimal utilization of the motor efficiency and the improvement of the motor performance are realized. The following examples are given for illustrative purposes.
Fig. 2 is a schematic structural diagram of a double-stator motor according to an embodiment of the present invention, as shown in fig. 2, the double-stator motor includes a first stator assembly 201 and a second stator assembly 202, where a winding of the first stator assembly 201 is a round wire and is composed of a first stator core and a first stator winding, and the round wire of the first stator winding is wound on the first stator core. The windings of the second stator assembly 202 are flat wires and are composed of a second stator core and second stator windings, wherein the flat wires of the second stator winding assembly are wound on the second stator core. The double-stator motor further comprises a rotor assembly 203 fixed on an output shaft 204 of the motor and penetrating through the first stator assembly 201 and the second stator assembly 202, wherein the rotor assembly comprises a rotor core and a rotor winding, and a conducting wire of the rotor winding is wound on the rotor core.
The double-stator motor further comprises a motor control unit 205 which is electrically connected with the first stator assembly 201 and the second stator assembly 202 and is used for controlling the first stator assembly to drive the rotor assembly 203 to drive the output shaft 204 to rotate so as to enable the motor to operate under a high-speed working condition; or controlling the second stator assembly to drive the rotor assembly 203 to drive the output shaft 204 to rotate, so that the motor operates at a low-speed working condition.
As can be seen from the above embodiments, the embodiments of the present invention provide a double stator winding motor. The double-stator winding motor adopts two winding schemes of a flat wire winding and a round wire winding, wherein the flat wire winding scheme and the round wire winding scheme are used for obtaining the required torque power and the vehicle speed of the current vehicle, and the flat wire winding or the round wire winding is selected and applied according to the current working condition. Through the demand torque, demand power and the rotational speed of acquireing the vehicle to predetermine the rotational speed with all of vehicle, predetermine power, predetermine the torque and compare, output different control signal realizes controlling first stator subassembly drive rotor subassembly and drives the output shaft and rotate, makes the motor operation drive rotor subassembly and drive the output shaft rotation at high-speed operating mode and control second stator subassembly, makes the motor operation at the purpose of low-speed operating mode. The embodiment of the invention provides a double-stator winding motor, which solves the problem that when the alternating current frequency of the motor is very high, the loss of a flat wire winding is higher due to the skin effect.
In one possible implementation, the motor control unit includes a first motor controller and a second motor controller, where the first motor controller is electrically connected to the first stator assembly, and the second motor controller is electrically connected to the second stator assembly. The first motor controller controls the first stator component to drive the rotor component to drive the output shaft to rotate, and the second motor controller controls the second stator component to drive the rotor component to drive the output shaft to rotate.
Fig. 3 is a schematic structural diagram of a double-stator motor according to an embodiment of the present invention. Specifically, as shown in fig. 3 (a), the outer diameter of the first stator assembly 201a in the double stator motor is smaller than or equal to the inner diameter of the second stator assembly 202a, and the end of the first stator assembly 201a of the double stator motor is mounted to the bottom of the second stator assembly 202a, so that the axial length of the double stator motor can be reduced, and the arrangement of the double stator motor in the vehicle interior space can be facilitated. Alternatively, as shown in (b) of fig. 3, the outer diameter 202b of the second stator assembly is smaller than or equal to the inner diameter 201b of the first stator assembly, and the end of the second stator assembly 202b of the double stator motor is mounted to the bottom of the first stator assembly 201b, the axial length of the double stator motor can be reduced, facilitating the arrangement of the double stator motor in the vehicle interior space.
Illustratively, the double stator motor further comprises a cooling device installed at the end of the double stator motor near the winding. And the cooling device is used for cooling the first stator component and the second stator component of the double-stator motor. Specifically, the cooling device is an oil spraying cooling device. As shown in fig. 4, fig. 4 is a schematic structural diagram of an oil injection cooling device according to an embodiment of the present invention. The oil injection cooling device comprises an oil inlet guide pipe 401 and an oil injection hole 402, wherein the oil inlet guide pipe 401 is used for guiding cooling oil, and the oil injection hole 402 is used for injecting the cooling oil on the double-stator motor.
According to the embodiment of the invention, the end oil injection cooling mode is adopted, so that the cooling oil is in direct contact with the winding insulation, and the heat radiation performance of the double-stator motor is improved.
Fig. 5 is a schematic structural diagram of a motor control system according to an embodiment of the present invention. As shown in fig. 5, a motor control system 50 provided in an embodiment of the present invention includes the dual-stator motor in the above embodiment, and further includes: an on-vehicle Electronic Control Unit (ECU) 501. Specifically, the motor control unit of the double stator motor includes a first motor controller 502 and a second motor controller 503. The ECU501 is electrically connected to the first motor controller 502 and the second motor controller 503, respectively. The first motor controller controls the first stator component to drive the rotor component to drive the output shaft to rotate according to a control signal sent by the ECU501, and the second motor controller controls the second stator component to drive the rotor component to drive the output shaft to rotate according to the control signal sent by the ECU 501.
As can be seen from the foregoing embodiments, the motor control system provided in the embodiments of the present invention includes a dual-stator motor and an ECU, where the ECU is configured to control the first stator assembly and the second stator assembly respectively through the first motor controller and the second motor controller, and the winding of the first stator assembly is configured to use a round wire and the winding of the second stator assembly is configured to use a flat wire. When the motor runs under a high-speed working condition, the first stator component is controlled to drive the rotor component to drive the output shaft to rotate, and the problem that when the alternating current frequency of the motor is very high, the loss of the flat wire winding is high due to the skin effect is solved. And the output performance and the heat dissipation performance of the motor can be optimized as far as possible within the full rotating speed range by adopting the double-stator structure, so that the optimal utilization of the motor efficiency and the improvement of the motor performance are realized.
Fig. 6 is a flowchart of a motor control method according to an embodiment of the present invention, and this embodiment describes in detail a specific implementation process in which an ECU controls a first stator assembly and a second stator assembly respectively through a first motor controller and a second motor controller based on the motor control system according to the embodiment of fig. 5.
As shown in fig. 6, the method includes:
s601: and acquiring the required torque, the required power and the rotating speed of the vehicle.
The ECU acquires the current required torque power and the current required rotating speed of the vehicle. The ECU judges the running condition of the current vehicle by judging whether the current required torque is greater than a first preset torque and a second preset torque, whether the current required power is greater than a first preset power and a second preset power, and whether the rotating speed is greater than a first preset rotating speed, a second preset rotating speed and a third preset rotating speed.
S602: when the rotating speed is less than or equal to a first preset rotating speed and the required torque of the vehicle is less than or equal to a first preset torque, a first motor control signal is generated and transmitted to a second motor controller, so that the second motor controller controls a second stator assembly to drive a rotor assembly to drive an output shaft to rotate, and the motor runs under a low-speed working condition.
The first preset torque is the maximum torque output by the motor when the second stator component works alone, the first preset rotating speed is the basic speed of the second stator component, and when the rotating speed is smaller than or equal to the basic speed of the second stator component, the motor works under the working condition of constant torque; and when the rotating speed is greater than the basic speed of the second stator assembly, the motor works under the working condition of constant power. When the rotating speed is less than or equal to a first preset rotating speed, if the required torque of the vehicle is less than or equal to the first preset torque, the output torque of the current motor meets the torque requirement of the vehicle at the moment, the ECU generates a first motor control signal and transmits the first motor control signal to the second motor controller, so that the second motor controller controls the second stator assembly to drive the rotor assembly to drive the output shaft to rotate, and the motor runs at a low-speed working condition.
S603: when the rotating speed is less than or equal to a first preset rotating speed and the required torque of the vehicle is greater than a first preset torque, a second motor control signal is generated and transmitted to a first motor controller and a second motor controller respectively, so that the first motor controller controls the first stator component to drive the rotor component to drive the output shaft to rotate and the second motor controller controls the second stator component to drive the rotor component to drive the output shaft to rotate, and the output torque of the motor is equal to the required torque.
If the required torque of the vehicle is larger than the first preset torque, the fact that the output torque of the current motor cannot meet the torque requirement of the vehicle at the moment is indicated, the ECU generates a second motor control signal and transmits the second motor control signal to the first motor controller and the second motor controller respectively, so that the first motor controller controls the first stator assembly to drive the rotor assembly to drive the output shaft to rotate and the second motor controller controls the second stator assembly to drive the rotor assembly to drive the output shaft to rotate, the output torque of the motor is equal to the required torque, and the driving requirement of the vehicle is met.
S604: when the rotating speed is greater than a first preset rotating speed and the rotating speed is less than or equal to a second preset rotating speed, if the required power of the vehicle is less than or equal to the first preset power, a third motor control signal is generated and transmitted to a second motor controller, so that the second motor controller controls a second stator assembly to drive a rotor assembly to drive an output shaft to rotate, and the motor operates under a low-speed working condition.
The first preset power is the maximum power output by the motor when the second stator assembly works alone. The first preset rotating speed is the basic speed of the second stator component, and when the rotating speed is smaller than or equal to the basic speed of the second stator component, the motor works under the working condition of constant torque; and when the rotating speed is greater than the basic speed of the second stator assembly, the motor works under the working condition of constant power. When the rotating speed is greater than a first preset rotating speed and the rotating speed is less than or equal to a second preset rotating speed, if the required power of the vehicle is less than or equal to the first preset power, the output power of the current motor meets the power requirement of the vehicle at the moment, and the ECU generates a third motor control signal and transmits the third motor control signal to the second motor controller, so that the second motor controller controls the second stator assembly to drive the rotor assembly to drive the output shaft to rotate, and the motor runs at a low-speed working condition.
S605: when the rotating speed is greater than a first preset rotating speed and the rotating speed is less than or equal to a second preset rotating speed, if the required power of the vehicle is greater than the first preset power, a fourth motor control signal is generated and transmitted to the first motor controller and the second motor controller respectively, so that the first motor controller controls the first stator component to drive the rotor component to drive the output shaft to rotate and the second motor controller controls the second stator component to drive the rotor component to drive the output shaft to rotate, and the output power of the motor is equal to the required power.
When the rotating speed is greater than a first preset rotating speed and the rotating speed is less than or equal to a second preset rotating speed, if the required power of the vehicle is greater than the first preset power, it is indicated that the output power of the current motor cannot meet the power requirement of the vehicle at the moment, the ECU generates a fourth motor control signal and transmits the fourth motor control signal to the first motor controller and the second motor controller respectively, so that the first motor controller controls the first stator assembly to drive the rotor assembly to drive the output shaft to rotate and the second motor controller controls the second stator assembly to drive the rotor assembly to drive the output shaft to rotate, the output power of the motor is equal to the required power, and the driving requirement of the vehicle is met.
S606: when the rotating speed is greater than the second preset rotating speed and the rotating speed is less than or equal to the third preset rotating speed, if the required torque of the vehicle is less than or equal to the second preset torque, a fifth motor control signal is generated and transmitted to the first motor controller, so that the first motor controller controls the first stator assembly to drive the rotor assembly to drive the output shaft to rotate, the motor is enabled to operate in a high-speed working condition, and the second preset torque is less than the first preset torque.
The second preset torque is the maximum torque output by the motor when the first stator assembly works alone, wherein the second preset torque is smaller than the first preset torque. The third preset rotating speed is the basic speed of the first stator assembly, and when the rotating speed is smaller than or equal to the basic speed of the first stator assembly, the motor works under the working condition of constant torque; when the rotating speed is larger than the basic speed of the first stator assembly, the motor works under the working condition of constant power. When the rotating speed is greater than the second preset rotating speed and the rotating speed is less than or equal to the third preset rotating speed, if the required torque of the vehicle is less than or equal to the second preset torque, the output torque of the current motor meets the torque requirement of the vehicle at the moment, the ECU generates a fifth motor control signal and transmits the fifth motor control signal to the first motor controller, so that the first motor controller controls the first stator assembly to drive the rotor assembly to drive the output shaft to rotate, and the motor runs under a high-speed working condition.
S607: when the rotating speed is greater than the second preset rotating speed and the rotating speed is less than or equal to the third preset rotating speed, if the required torque of the vehicle is greater than the second preset torque, a sixth motor control signal is generated and transmitted to the first motor controller and the second motor controller respectively, so that the first motor controller controls the first stator assembly to drive the rotor assembly to drive the output shaft to rotate and the second motor controller controls the second stator assembly to drive the rotor assembly to drive the output shaft to rotate, and the output torque of the motor is equal to the required torque.
When the rotating speed is greater than the second preset rotating speed and the rotating speed is less than or equal to the third preset rotating speed, if the required torque of the vehicle is greater than the first preset torque, it is indicated that the output torque of the current motor cannot meet the torque requirement of the vehicle at the moment, the ECU generates a sixth motor control signal and transmits the sixth motor control signal to the first motor controller and the second motor controller respectively, so that the first motor controller controls the first stator assembly to drive the rotor assembly to drive the output shaft to rotate and the second motor controller controls the second stator assembly to drive the rotor assembly to drive the output shaft to rotate, the output torque of the motor is equal to the required torque, and the driving requirement of the vehicle is met.
S608: when the rotating speed is greater than a third preset rotating speed, if the required power of the vehicle is less than or equal to a second preset power, a seventh motor control signal is generated and transmitted to the first motor controller, so that the first motor controller controls the first stator assembly to drive the rotor assembly to drive the output shaft to rotate, the motor operates in a high-speed working condition, and the second preset power is less than the first preset power.
The second preset power is the maximum power output by the motor when the first stator assembly works alone. When the rotating speed is greater than a third preset rotating speed, if the required power of the vehicle is less than or equal to a second preset power, the output power of the current motor meets the power requirement of the vehicle at the moment, the ECU generates a seventh motor control signal and transmits the seventh motor control signal to the first motor controller, so that the first motor controller controls the first stator assembly to drive the rotor assembly to drive the output shaft to rotate, the motor is operated under a high-speed working condition, and the second preset power is less than the first preset power.
S609: when the rotating speed is greater than a third preset rotating speed, if the required power of the vehicle is greater than a second preset power, an eighth motor control signal is generated and is respectively transmitted to the first motor controller and the second motor controller, so that the first motor controller controls the first stator component to drive the rotor component to drive the output shaft to rotate and the second motor controller controls the second stator component to drive the rotor component to drive the output shaft to rotate, and the output power of the motor is equal to the required power.
When the rotating speed is greater than a third preset rotating speed, if the required power of the vehicle is greater than a second preset power, it is indicated that the output power of the current motor cannot meet the power requirement of the vehicle at the moment, the ECU generates an eighth motor control signal and transmits the eighth motor control signal to the first motor controller and the second motor controller respectively, so that the first motor controller controls the first stator assembly to drive the rotor assembly to drive the output shaft to rotate and the second motor controller controls the second stator assembly to drive the rotor assembly to drive the output shaft to rotate, the output power of the motor is equal to the required power, and the driving requirement of the vehicle is met.
It can be known from the above embodiments that, in the motor control method provided in the embodiments of the present invention, by obtaining the required torque, the required power, and the rotation speed of the vehicle, and comparing the required torque, the required power, and the rotation speed with all the preset rotation speeds, the preset power, and the preset torque of the vehicle, different control signals are output, so as to control the first stator assembly to drive the rotor assembly to drive the output shaft to rotate, so that the motor operates in a high-speed working condition, and control the second stator assembly to drive the rotor assembly to drive the output shaft to rotate, so as to achieve the purpose that the motor operates in a low-speed working condition, and solve the problem that when the alternating current frequency of the motor. And the output performance and the heat dissipation performance of the motor can be optimized as far as possible within the full rotating speed range by adopting the double-stator structure, so that the optimal utilization of the motor efficiency and the improvement of the motor performance are realized.
Fig. 7 is a schematic diagram of a hardware structure of an electronic control unit according to an embodiment of the present invention. As shown in fig. 7, the electronic control unit 70 of the present embodiment includes: a processor 701 and a memory 702, wherein:
memory 702 for storing computer-executable instructions.
The processor 701 is configured to execute the computer-executable instructions stored in the memory to implement the steps performed by the receiving device in the above embodiments. Reference may be made in particular to the description relating to the method embodiments described above.
Alternatively, the memory 702 may be separate or integrated with the processor 701.
When the memory 702 is provided separately, the electronic control unit further includes a bus 703 for connecting the memory 702 and the processor 701.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer executing instruction is stored in the computer-readable storage medium, and when the processor executes the computer executing instruction, the invoicing method as described above is implemented.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the modules is only one logical division, and other divisions may be realized in practice, for example, a plurality of modules may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to implement the solution of the present embodiment.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing unit, or each module may exist alone physically, or two or more modules are integrated into one unit. The unit formed by the modules can be realized in a hardware form, and can also be realized in a form of hardware and a software functional unit.
The integrated module implemented in the form of a software functional module may be stored in a computer-readable storage medium. The software functional module is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) or a processor to execute some steps of the methods described in the embodiments of the present application.
It should be understood that the Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor, or in a combination of the hardware and software modules within the processor.
The memory may comprise a high-speed RAM memory, and may further comprise a non-volatile storage NVM, such as at least one disk memory, and may also be a usb disk, a removable hard disk, a read-only memory, a magnetic or optical disk, etc.
The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (Extended Industry Standard Architecture) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, the buses in the figures of the present application are not limited to only one bus or one type of bus.
The storage medium may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an Application Specific Integrated Circuits (ASIC). Of course, the processor and the storage medium may reside as discrete components in an electronic device or host device.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A dual stator electric machine comprising:
the stator comprises a first stator component and a second stator component, wherein the winding of the first stator component adopts a round wire, and the winding of the second stator component adopts a flat wire;
the rotor assembly is fixed on the output shaft of the motor and penetrates through the first stator assembly and the second stator assembly;
the motor control unit is electrically connected with the first stator component and the second stator component and is used for controlling the first stator component to drive the rotor component to drive the output shaft to rotate so as to enable the motor to operate under a high-speed working condition; or,
and controlling the second stator assembly to drive the rotor assembly to drive the output shaft to rotate so as to enable the motor to operate under a low-speed working condition.
2. The dual stator motor of claim 1, wherein the motor control unit is further configured to control the first stator assembly and the second stator assembly to simultaneously drive the rotor assembly to rotate the output shaft, so that the torque power of the motor exceeds a preset power threshold.
3. A double stator electric machine according to claim 1,
the outer diameter of the first stator assembly is less than or equal to the inner diameter of the second stator assembly; alternatively, the outer diameter of the second stator assembly is less than or equal to the inner diameter of the first stator assembly.
4. The double stator electric machine according to claim 1, further comprising a cooling device installed at a position near the winding end of the double stator electric machine;
the cooling device is used for cooling the first stator assembly and the second stator assembly of the double-stator motor.
5. The double stator motor of claim 4 wherein the cooling device is an oil spray cooling device comprising an oil inlet conduit for conducting cooling oil and an oil spray hole for spraying the cooling oil onto the double stator motor.
6. The double stator motor according to any one of claims 1 to 4, wherein the motor control unit comprises: a first motor controller and a second motor controller;
the first motor controller is electrically connected with the first stator assembly and the second motor controller is electrically connected with the second stator assembly.
7. A motor control system comprising the double stator motor according to any one of claims 1 to 6, further comprising: an on-vehicle electronic control unit ECU;
the ECU is electrically connected with the first motor controller and the second motor controller respectively; the ECU is configured to:
acquiring the required torque, the required power and the rotating speed of the vehicle;
when the rotating speed is less than or equal to a first preset rotating speed and the required torque of the vehicle is less than or equal to a first preset torque, generating a first motor control signal and transmitting the first motor control signal to a second motor controller, so that the second motor controller controls a second stator assembly to drive a rotor assembly to drive an output shaft to rotate, and the motor runs under a low-speed working condition;
when the rotating speed is less than or equal to a first preset rotating speed and the required torque of the vehicle is greater than a first preset torque, generating a second motor control signal, and respectively transmitting the second motor control signal to a first motor controller and a second motor controller, so that the first motor controller controls a first stator component to drive a rotor component to drive an output shaft to rotate and the second motor controller controls a second stator component to drive the rotor component to drive the output shaft to rotate, and the output torque of the motor is equal to the required torque;
when the rotating speed is greater than a first preset rotating speed and the rotating speed is less than or equal to a second preset rotating speed, if the required power of the vehicle is less than or equal to the first preset power, generating a third motor control signal and transmitting the third motor control signal to a second motor controller, so that the second motor controller controls a second stator assembly to drive a rotor assembly to drive an output shaft to rotate, and the motor operates in a low-speed working condition;
when the rotating speed is greater than a first preset rotating speed and the rotating speed is less than or equal to a second preset rotating speed, if the required power of the vehicle is greater than the first preset power, generating a fourth motor control signal, and respectively transmitting the fourth motor control signal to a first motor controller and a second motor controller, so that the first motor controller controls a first stator component to drive a rotor component to drive an output shaft to rotate and the second motor controller controls a second stator component to drive the rotor component to drive the output shaft to rotate, and the output power of the motor is equal to the required power;
when the rotating speed is greater than a second preset rotating speed and the rotating speed is less than or equal to a third preset rotating speed, if the required torque of the vehicle is less than or equal to a second preset torque, a fifth motor control signal is generated and transmitted to a first motor controller, so that the first motor controller controls a first stator assembly to drive a rotor assembly to drive an output shaft to rotate, the motor is enabled to operate in a high-speed working condition, and the second preset torque is less than the first preset torque;
when the rotating speed is greater than a second preset rotating speed and the rotating speed is less than or equal to a third preset rotating speed, if the required torque of the vehicle is greater than the second preset torque, generating a sixth motor control signal, and respectively transmitting the sixth motor control signal to a first motor controller and a second motor controller, so that the first motor controller controls a first stator component to drive a rotor component to drive an output shaft to rotate and the second motor controller controls a second stator component to drive the rotor component to drive the output shaft to rotate, and the output torque of the motor is equal to the required torque;
when the rotating speed is greater than a third preset rotating speed, if the required power of the vehicle is less than or equal to a second preset power, generating a seventh motor control signal and transmitting the seventh motor control signal to the first motor controller, so that the first motor controller controls the first stator assembly to drive the rotor assembly to drive the output shaft to rotate, and the motor operates in a high-speed working condition, wherein the second preset power is less than the first preset power;
when the rotating speed is greater than a third preset rotating speed, if the required power of the vehicle is greater than a second preset power, an eighth motor control signal is generated and is respectively transmitted to the first motor controller and the second motor controller, so that the first motor controller controls the first stator component to drive the rotor component to drive the output shaft to rotate and the second motor controller controls the second stator component to drive the rotor component to drive the output shaft to rotate, and the output power of the motor is equal to the required power.
8. A motor control method, applied to the ECU of claim 7, comprising:
acquiring the required torque, the required power and the rotating speed of the vehicle;
when the rotating speed is less than or equal to a first preset rotating speed and the required torque of the vehicle is less than or equal to a first preset torque, generating a first motor control signal and transmitting the first motor control signal to a second motor controller, so that the second motor controller controls a second stator assembly to drive a rotor assembly to drive an output shaft to rotate, and the motor runs under a low-speed working condition;
when the rotating speed is less than or equal to a first preset rotating speed and the required torque of the vehicle is greater than a first preset torque, generating a second motor control signal, and respectively transmitting the second motor control signal to a first motor controller and a second motor controller, so that the first motor controller controls a first stator component to drive a rotor component to drive an output shaft to rotate and the second motor controller controls a second stator component to drive the rotor component to drive the output shaft to rotate, and the output torque of the motor is equal to the required torque;
when the rotating speed is greater than a first preset rotating speed and the rotating speed is less than or equal to a second preset rotating speed, if the required power of the vehicle is less than or equal to the first preset power, generating a third motor control signal and transmitting the third motor control signal to a second motor controller, so that the second motor controller controls a second stator assembly to drive a rotor assembly to drive an output shaft to rotate, and the motor operates in a low-speed working condition;
when the rotating speed is greater than a first preset rotating speed and the rotating speed is less than or equal to a second preset rotating speed, if the required power of the vehicle is greater than the first preset power, generating a fourth motor control signal, and respectively transmitting the fourth motor control signal to a first motor controller and a second motor controller, so that the first motor controller controls a first stator component to drive a rotor component to drive an output shaft to rotate and the second motor controller controls a second stator component to drive the rotor component to drive the output shaft to rotate, and the output power of the motor is equal to the required power;
when the rotating speed is greater than a second preset rotating speed and the rotating speed is less than or equal to a third preset rotating speed, if the required torque of the vehicle is less than or equal to a second preset torque, a fifth motor control signal is generated and transmitted to a first motor controller, so that the first motor controller controls a first stator assembly to drive a rotor assembly to drive an output shaft to rotate, the motor is enabled to operate in a high-speed working condition, and the second preset torque is less than the first preset torque;
when the rotating speed is greater than a second preset rotating speed and the rotating speed is less than or equal to a third preset rotating speed, if the required torque of the vehicle is greater than the second preset torque, generating a sixth motor control signal, and respectively transmitting the sixth motor control signal to a first motor controller and a second motor controller, so that the first motor controller controls a first stator component to drive a rotor component to drive an output shaft to rotate and the second motor controller controls a second stator component to drive the rotor component to drive the output shaft to rotate, and the output torque of the motor is equal to the required torque;
when the rotating speed is greater than a third preset rotating speed, if the required power of the vehicle is less than or equal to a second preset power, generating a seventh motor control signal and transmitting the seventh motor control signal to the first motor controller, so that the first motor controller controls the first stator assembly to drive the rotor assembly to drive the output shaft to rotate, and the motor operates in a high-speed working condition, wherein the second preset power is less than the first preset power;
when the rotating speed is greater than a third preset rotating speed, if the required power of the vehicle is greater than a second preset power, an eighth motor control signal is generated and is respectively transmitted to the first motor controller and the second motor controller, so that the first motor controller controls the first stator component to drive the rotor component to drive the output shaft to rotate and the second motor controller controls the second stator component to drive the rotor component to drive the output shaft to rotate, and the output power of the motor is equal to the required power.
9. An electronic control unit, comprising: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executing the computer-executable instructions stored by the memory causes the at least one processor to perform the motor control method of claim 8.
10. A computer-readable storage medium having computer-executable instructions stored therein, which when executed by a processor, implement the motor control method of claim 8.
CN202010450560.2A 2020-05-25 2020-05-25 Double-stator motor, motor control system and control method Active CN111555577B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010450560.2A CN111555577B (en) 2020-05-25 2020-05-25 Double-stator motor, motor control system and control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010450560.2A CN111555577B (en) 2020-05-25 2020-05-25 Double-stator motor, motor control system and control method

Publications (2)

Publication Number Publication Date
CN111555577A true CN111555577A (en) 2020-08-18
CN111555577B CN111555577B (en) 2021-11-19

Family

ID=72006669

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010450560.2A Active CN111555577B (en) 2020-05-25 2020-05-25 Double-stator motor, motor control system and control method

Country Status (1)

Country Link
CN (1) CN111555577B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113036954A (en) * 2021-03-19 2021-06-25 浙江方正电机股份有限公司 Double-winding stator and permanent magnet motor

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110140555A1 (en) * 1998-02-27 2011-06-16 Nickoladze Leo G Variable speed constant frequency motor
CN102148541A (en) * 2010-02-08 2011-08-10 通用汽车环球科技运作有限责任公司 Conducting wire for electric machine
CN103347759A (en) * 2011-02-03 2013-10-09 铃木株式会社 Drive control device for hybrid vehicle, and hybrid vehicle
CN104325883A (en) * 2014-11-20 2015-02-04 奇瑞汽车股份有限公司 Power assembly of full electric vehicle electric drive system
JP2016086607A (en) * 2014-10-29 2016-05-19 瑞展動能股▲ふん▼有限公司 Rotation speed control system for brushless dc motor
CN105794093A (en) * 2013-12-13 2016-07-20 Arm 有限公司 Electric motor with plural stator components
CN107896041A (en) * 2017-12-29 2018-04-10 潍柴动力股份有限公司 Double-stator motor and electric automobile
CN109038878A (en) * 2018-07-17 2018-12-18 睿驰智能汽车（广州）有限公司 Three-phase motor stator and driving motor for electric automobile
CN110149075A (en) * 2019-05-21 2019-08-20 江苏大学 Bimorph transducer automobile drive motor wide area high efficiency dynamic power allocation method under a kind of more operating conditions
CN210350885U (en) * 2019-09-27 2020-04-17 安徽鸿创新能源动力有限公司 Winding structure of driving motor of electric automobile

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110140555A1 (en) * 1998-02-27 2011-06-16 Nickoladze Leo G Variable speed constant frequency motor
CN102148541A (en) * 2010-02-08 2011-08-10 通用汽车环球科技运作有限责任公司 Conducting wire for electric machine
CN103347759A (en) * 2011-02-03 2013-10-09 铃木株式会社 Drive control device for hybrid vehicle, and hybrid vehicle
CN105794093A (en) * 2013-12-13 2016-07-20 Arm 有限公司 Electric motor with plural stator components
JP2016086607A (en) * 2014-10-29 2016-05-19 瑞展動能股▲ふん▼有限公司 Rotation speed control system for brushless dc motor
CN104325883A (en) * 2014-11-20 2015-02-04 奇瑞汽车股份有限公司 Power assembly of full electric vehicle electric drive system
CN107896041A (en) * 2017-12-29 2018-04-10 潍柴动力股份有限公司 Double-stator motor and electric automobile
CN109038878A (en) * 2018-07-17 2018-12-18 睿驰智能汽车（广州）有限公司 Three-phase motor stator and driving motor for electric automobile
CN110149075A (en) * 2019-05-21 2019-08-20 江苏大学 Bimorph transducer automobile drive motor wide area high efficiency dynamic power allocation method under a kind of more operating conditions
CN210350885U (en) * 2019-09-27 2020-04-17 安徽鸿创新能源动力有限公司 Winding structure of driving motor of electric automobile

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113036954A (en) * 2021-03-19 2021-06-25 浙江方正电机股份有限公司 Double-winding stator and permanent magnet motor

Also Published As

Publication number Publication date
CN111555577B (en) 2021-11-19

Similar Documents

Publication Publication Date Title
CN108141108B (en) Cooling structure of rotating electric machine and control method thereof
JP5720715B2 (en) Rotating electric machine
CN111555577B (en) Double-stator motor, motor control system and control method
CN106208478A (en) Electric fluid pump
CN215817824U (en) Permanent magnet brush direct current motor with good heat dissipation performance
CN109698585A (en) Motor and motor vehicle
CN111682700A (en) Small permanent magnet generator with good cooling effect
CN214626633U (en) Cooling structure of motor and motor
CN203800734U (en) Water-cooled dual-speed motor and control system thereof
CN108711988A (en) A kind of hollow-cup motor system
CN110266135A (en) A kind of high-speed motor stator
CN207677579U (en) A kind of submersible motor with efficient cooling and self-cleaning function
EP2651018B1 (en) DC commutator motor and automobile including the same
CN213392722U (en) Double-end electronic water pump
CN204794626U (en) Electric tool brushless motor controller ware heat radiation structure
US9970434B2 (en) Motor, controller and associated method
CN113381532A (en) Motor cooling structure and motor with same
CN202059304U (en) Scooter direct current brushless motor with large length-diameter ratio
CN209709908U (en) A kind of adjustable number of magnetic poles motor of resultant field
CN208835929U (en) A kind of axial flow blower iron-shell motor
KR20130011634A (en) Electronic compressor
CN202370863U (en) Electric water pump for cooling automobile engine
CN1716736A (en) Brushless DC motor with external Hall element
CN219960368U (en) Double-layer structure permanent magnet outer rotor motor
CN107762897A (en) A kind of non-axle driving fan module for reducing server noise

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant