CN116707102A

CN116707102A - Electric drive and charge integrated system, control method, vehicle and electronic device

Info

Publication number: CN116707102A
Application number: CN202310996267.XA
Authority: CN
Inventors: 蒋伟; 喻皓
Original assignee: GAC Aion New Energy Automobile Co Ltd
Current assignee: GAC Aion New Energy Automobile Co Ltd
Priority date: 2023-08-09
Filing date: 2023-08-09
Publication date: 2023-09-05
Anticipated expiration: 2043-08-09
Also published as: CN116707102B

Abstract

The embodiment of the application provides an electric drive and charge integrated system, a control method, a vehicle and electronic equipment, wherein the electric drive and charge integrated system comprises: the power battery module, the motor inversion module, the motor system, the charging module, the rectifying module and the change-over switch; the motor inversion module and the rectification module are connected in parallel with the power battery module; the motor inversion module is connected with the motor system and used for controlling the working state of the motor system; the neutral point of the motor system is connected with the charging module through a change-over switch; each phase winding of the motor in the motor system is connected with an auxiliary winding in parallel; the auxiliary winding is connected with the charging module. The integrated system for electric drive and charging realizes the property of isolation transformation, has high integration level, greatly reduces the number of power devices, ensures the performance of the system and greatly reduces the cost of the system.

Description

Electric drive and charge integrated system, control method, vehicle and electronic device

Technical Field

The application relates to the technical field of new energy automobiles, in particular to an electric drive and charge integrated system, a control method, a vehicle and electronic equipment.

Background

In recent years, new energy automobiles in China enter the era of rapid development, the permeability of the new energy automobiles reaches 30%, and the comprehensive electrification era is being started. Meanwhile, along with the policy implementation of the energy source 'double carbon' target, the energy consumption target of the electric automobile becomes more severe, the improvement of the whole automobile energy efficiency technology gradually becomes a research hot spot, the weight, cost and performance requirements on the whole automobile, the system and parts are more severe, and particularly in the technical field of motor driving and charging, the system is developed towards the trend of high pressure and integration. In the technical field of driving and charging integration, non-isolated charging patents are adopted in most cases, and alternating current charging is directly introduced by reconstructing three-phase windings of a motor.

Disclosure of Invention

The embodiment of the application aims to provide an electric drive and charge integrated system, a control method, a vehicle and electronic equipment, which utilize the additional three-way open winding on the main winding of a motor to realize the property of isolation transformation, have high integration level, greatly reduce the number of power devices, ensure the performance of the system and greatly reduce the cost of the system.

In a first aspect, an embodiment of the present application provides an integrated system for electric driving and charging, including:

The power battery module, the motor inversion module, the motor system, the charging module, the rectifying module and the change-over switch;

the motor inversion module, the charging module and the rectifying module are connected in parallel with the power battery module;

the motor inversion module is connected with the motor system and used for controlling the working state of the motor system;

the neutral point of the motor system is connected with the charging module through the change-over switch;

each phase winding of the motor in the motor system is connected with an auxiliary winding in parallel;

the auxiliary winding is connected with the charging module.

In the implementation process, since each phase winding of the motor in the motor system is connected with the auxiliary winding in parallel, the auxiliary winding is connected with the charging module, the transformer is omitted, meanwhile, isolation transformation is formed, the number of power devices is greatly reduced by multiplexing the motor inversion module, the performance of the system is ensured, and the cost of the system is greatly reduced.

Further, the charging module includes: the charging inductor, the charging capacitor branch, the voltage division capacitor branch, the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit;

the first end of the change-over switch is connected with the neutral point of the motor system, and the second end of the change-over switch is connected with the middle part of the charging capacitor branch through the charging inductor;

The first end of an auxiliary winding of each winding of the motor system is connected with the middle part of the voltage dividing capacitor branch;

a second end of an auxiliary winding of a first winding of the motor system is connected with the middle part of the first half-bridge circuit;

a second end of an auxiliary winding of a second winding of the motor system is connected with the middle part of the second half-bridge circuit;

a second end of an auxiliary winding of a third winding of the motor system is connected to a middle portion of the third half-bridge circuit.

Further, the motor inverter module includes:

a fourth half-bridge circuit, a fifth half-bridge circuit, and a sixth half-bridge circuit;

the first half-bridge circuit is formed by connecting a first power device and a second power device;

the second half-bridge circuit is formed by connecting a third power device and a fourth power device;

the third half-bridge circuit is formed by connecting a fifth power device and a sixth power device;

the fourth half-bridge circuit is formed by connecting a seventh power device and an eighth power device;

the fifth half-bridge circuit is formed by connecting a ninth power device and a tenth power device;

the sixth half-bridge circuit is formed by connecting an eleventh power device and a twelfth power device;

The middle part of the fourth half-bridge circuit is connected with the first winding of the motor system;

the middle part of the fifth half-bridge circuit is connected with a second winding of the motor system;

the middle part of the sixth half-bridge circuit is connected with the third winding of the motor system.

In a second aspect, an embodiment of the present application provides a control method of an integrated system for electric driving and charging, where the method is applied to the integrated system for electric driving and charging, and includes:

the switching switch is controlled to be switched off in response to a first working condition, and the inversion unit is controlled to work so as to change the working state of the motor;

and responding to a second working condition, and controlling the change-over switch to be closed so as to charge the power battery module.

Further, the charging the power battery module includes:

in a first switching sub-period, controlling a first power device to be conducted, closing other power devices except the first power device in a first half-bridge circuit, a second half-bridge circuit and a third half-bridge circuit, establishing a first exciting voltage by an auxiliary winding of a first winding of a motor system, and closing other power devices except the eighth power device in a fourth half-bridge circuit, a fifth half-bridge circuit and a sixth half-bridge circuit;

In a second switching subcycle, all power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are controlled to be closed, a seventh power device is conducted, and other power devices except the seventh power device in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are closed;

in a third switching sub-period, controlling other power devices except for a second power device in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit to be closed, wherein the second power device is conducted, an auxiliary winding of a first winding of the motor system establishes a second excitation voltage, a seventh power device is conducted, and the other power devices except for the seventh power device in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are closed;

in a fourth switching subcycle, all power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are controlled to be closed, and other power devices except for the eighth power device in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are controlled to be closed, and the eighth power device is turned on;

In a fifth switching sub-period, controlling a third power device to be conducted, wherein the first half-bridge circuit, the second half-bridge circuit and other power devices except the third power device in the third half-bridge circuit are closed, an auxiliary winding of a second winding of the motor system establishes a first exciting voltage, a tenth power device is conducted, and the fourth half-bridge circuit, the fifth half-bridge circuit and other power devices except the tenth power device in the sixth half-bridge circuit are closed;

in a sixth switching subcycle, all power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are controlled to be closed, a ninth power device is conducted, and other power devices except the ninth power device in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are controlled to be closed;

in a seventh switching sub-period, controlling other power devices except for a fourth power device in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit to be closed, wherein the fourth power device is conducted, an auxiliary winding of a second winding of the motor system establishes a second excitation voltage, a ninth power device is conducted, and the other power devices except for the ninth power device in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are closed;

In an eighth switching subcycle, all power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are controlled to be closed, and other power devices except the tenth power device in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are controlled to be closed, and the tenth power device is turned on;

in a ninth switching sub-period, controlling a fifth power device to be conducted, wherein other power devices except the fifth power device in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are closed, an auxiliary winding of a third winding of the motor system establishes a first excitation voltage, a twelfth power device is conducted, and other power devices except the twelfth power device in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are closed;

in a tenth switching subcycle, all power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are controlled to be closed, an eleventh power device is turned on, and other power devices except the eleventh power device in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are controlled to be closed;

In an eleventh switching period, controlling other power devices except for a sixth power device in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit to be closed, wherein the sixth power device is conducted, an auxiliary winding of a third winding of the motor system establishes a second excitation voltage, the eleventh power device is conducted, and the other power devices except for the eleventh power device in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are closed;

and in a twelve-switch subcycle, controlling all power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit to be closed, and closing other power devices except the twelfth power device in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit, wherein the twelfth power device is conducted.

Further, the charging the power battery module includes:

In a second switching sub-period, controlling a third power device to be conducted, wherein the first half-bridge circuit, the second half-bridge circuit and other power devices except the third power device in the third half-bridge circuit are closed, an auxiliary winding of a second winding of the motor system establishes a first excitation voltage, a tenth power device is conducted, and the fourth half-bridge circuit, the fifth half-bridge circuit and other power devices except the tenth power device in the sixth half-bridge circuit are closed;

in a third switching sub-period, controlling a fifth power device to be conducted, wherein other power devices except the fifth power device in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are closed, an auxiliary winding of a third winding of the motor system establishes a first excitation voltage, a twelfth power device is conducted, and other power devices except the twelfth power device in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are closed;

in a fourth switching subcycle, all power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are controlled to be closed, a seventh power device is conducted, and other power devices except the seventh power device in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are controlled to be closed;

In a fifth switching sub-period, all power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are controlled to be closed, and other power devices except the ninth power device in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are controlled to be closed, and the ninth power device is controlled to be turned on;

in a sixth switching subcycle, all power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are controlled to be closed, an eleventh power device is turned on, and other power devices except the eleventh power device in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are controlled to be closed;

in a seventh switching sub-period, controlling a second power device to be conducted, wherein other power devices except the second power device in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are closed, an auxiliary winding of a first winding of a motor system establishes a first exciting voltage, a seventh power device is conducted, and other power devices except the seventh power device in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are closed;

In an eighth switching sub-period, controlling a fourth power device to be conducted, wherein other power devices except the fourth power device in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are closed, an auxiliary winding of a second winding of the motor system establishes a first excitation voltage, a ninth power device is conducted, and other power devices except the ninth power device in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are closed;

in a ninth switching sub-period, controlling a sixth power device to be conducted, wherein other power devices except the sixth power device in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are closed, an auxiliary winding of a third winding of the motor system establishes a first excitation voltage, an eleventh power device is conducted, and other power devices except the eleventh power device in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are closed;

in a tenth switching subcycle, all power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are controlled to be closed, an eighth power device is conducted, and other power devices except the eighth power device in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are controlled to be closed;

In an eleventh switching sub-period, controlling all power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit to be closed, and closing other power devices except the tenth power device in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit, wherein the tenth power device is turned on;

and in a twelfth switching subcycle, controlling all power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit to be closed, wherein a twelfth power device is conducted, and other power devices except the twelfth power device in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are closed.

Further, the charging the power battery module includes: in a first switching sub-period, controlling the first power device, the third power device and the fifth power device to be conducted, closing the second power device, the fourth power device and the sixth power device, respectively establishing a first excitation voltage by an auxiliary winding of a first winding, an auxiliary winding of a second winding and an auxiliary winding of a third winding of a motor system, and closing the eighth power device, the tenth power device and the twelfth power device;

In the second switching subcycle, all power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are controlled to be closed, the seventh power device, the ninth power device and the eleventh power device are turned on, and the eighth power device, the tenth power device and the twelfth power device are turned off;

in the third switching sub-period, the first power device, the third power device and the fifth power device are controlled to be turned off, the second power device, the fourth power device and the sixth power device are turned on, a second exciting voltage is established by an auxiliary winding of a first winding, an auxiliary winding of a second winding and an auxiliary winding of a third winding of the motor system, the seventh power device, the ninth power device and the eleventh power device are turned on, and the eighth power device, the tenth power device and the twelfth power device are turned off;

and in a fourth switching subcycle, all power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are controlled to be closed, the seventh power device, the ninth power device and the eleventh power device are controlled to be closed, and the eighth power device, the tenth power device and the twelfth power device are controlled to be turned on.

In a third aspect, an embodiment of the present application provides a vehicle including the integrated electric drive and charge system of the first aspect.

In a fourth aspect, an embodiment of the present application provides a vehicle, and executes the control method of the electric drive and charge integrated system described in the second aspect.

In a fifth aspect, an electronic device provided by an embodiment of the present application includes: a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the method according to any one of the first aspects when the computer program is executed.

Additional features and advantages of the disclosure will be set forth in the description which follows, or in part will be obvious from the description, or may be learned by practice of the disclosure.

In order to make the above objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and should not be considered as limiting the scope, and other related drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an integrated system for controlling an automobile according to an embodiment of the present application;

FIG. 2 is a schematic diagram of another architecture of an integrated system for controlling an automobile according to an embodiment of the present application;

FIG. 3 is a schematic diagram of another architecture of an integrated system for controlling an automobile according to an embodiment of the present application;

fig. 4 is a schematic diagram of a working state of a power device according to an embodiment of the present application;

fig. 5 is a schematic diagram of another working state of the power device according to the embodiment of the present application;

fig. 6 is a schematic diagram of another working state of the power device according to the embodiment of the present application;

fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Reference numerals: 100-a power battery module; 200-a motor inversion module; 300-motor system; 400-a charging module; 500-rectifying module; 600-charging interface; 700-motor control unit; k1-a change-over switch; 30 a-a first winding; 30 b-a second winding; 30 c-a third winding; 30a' -auxiliary winding of the first winding; 30b' -an auxiliary winding of the second winding; 30c' -an auxiliary winding of the third winding; 401-a first power device; 402-a second power device; 403-a third power device; 404-fourth power device; 405-fifth power device; 406-sixth power device; 407-a third capacitance; 408-a fourth capacitance; 409-a first capacitance; 410-a second capacitance; 411-charging inductance; 201-seventh power device; 202-eighth power device; 203-ninth power device; 204-tenth power device; 205-eleventh power device; 206-twelfth power device; 505-thirteenth power device; 506-fourteenth power device; 507-fifteenth power device; 508-sixteenth power device; l1-equivalent inductance.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.

Referring to fig. 1, 2 and 3, an embodiment of the present application provides an integrated system for electric driving and charging, including:

a power battery module 100, a motor inverter module 200, a motor system 300, a charging module 400, a rectifying module 500, and a change-over switch K1;

the motor inverter module 200, the charging module 400 and the rectifying module 500 are connected in parallel to the power battery module 100;

the motor inverter module 200 is connected with the motor system 300 and is used for controlling the working state of a motor of the motor system 300;

the neutral point of the motor system 300 is connected with the charging module 400 through the change-over switch K1;

each phase winding of the motor in motor system 300 is connected in parallel with an auxiliary winding;

The auxiliary winding is connected to the charging module 400.

In some embodiments, the system further comprises a motor control unit 700 for controlling the switching state of the power switch tube.

It can be understood that the charging interface 600 is connected to the rectifying module 500, and the charging interface is connected to an external power source during charging, and L1 is an equivalent inductance of the charging interface 600.

In the above embodiment, each phase winding and the corresponding auxiliary winding of each phase winding constitute a transformer.

The first winding 30a and the auxiliary winding 30a' of the first winding constitute a transformer;

the second winding 30b and the auxiliary winding 30b' of the second winding constitute a transformer;

the third winding 30c and the auxiliary winding 30c' of the third winding constitute a transformer.

In the implementation process, since each phase winding of the motor in the motor system 300 is connected with an auxiliary winding in parallel, the auxiliary winding is connected with the charging module 400, the transformer is omitted, and meanwhile, isolation transformation is formed, and the number of power devices is greatly reduced by multiplexing the motor inverter module 200, so that the performance of the system is ensured, and the cost of the system is greatly reduced.

Referring to fig. 2, in some embodiments, the charging module 400 includes: a charging inductance 411, a charging capacitance branch, a voltage division capacitance branch, a first half-bridge circuit, a second half-bridge circuit, and a third half-bridge circuit;

Referring to fig. 2, a first end of a switch K1 is connected to a neutral point of the motor system 300, and a second end of the switch K1 is connected to a middle part of the charging capacitor branch through a charging inductor 411;

the first end of the auxiliary winding of each winding of the motor system 300 is connected with the middle part of the voltage dividing capacitor branch;

a second end of the auxiliary winding 30a' of the first winding of the motor system 300 is connected to the middle of the first half-bridge circuit;

a second end of the auxiliary winding 30b' of the second winding of the motor system 300 is connected to the middle of the second half-bridge circuit;

a second end of the auxiliary winding 30c' of the third winding of the motor system 300 is connected to the middle of the third half-bridge circuit.

The charging capacitor branch circuit includes: a first capacitor 409 and a second capacitor 410; the voltage division capacitor branch circuit comprises: a third capacitor 407 and a fourth capacitor 408; wherein the first capacitor 409 and the second capacitor 410 are connected in series, and the third capacitor 407 and the fourth capacitor 408 are connected in series.

Referring to fig. 2, in some embodiments, the motor inverter module 200 includes:

the first half-bridge circuit is formed by connecting a first power device 401 and a second power device 402;

the second half-bridge circuit is formed by connecting a third power device 403 and a fourth power device 404;

The third half-bridge circuit is formed by connecting a fifth power device 405 and a sixth power device 406;

the fourth half-bridge circuit is formed by connecting a seventh power device 201 and an eighth power device 202;

the fifth half-bridge circuit is formed by connecting a ninth power device 203 and a tenth power device 204;

the sixth half-bridge circuit is formed by connecting an eleventh power device 205 and a twelfth power device 206;

the middle of the fourth half-bridge circuit is connected to the first winding 30a of the motor system 300;

the middle of the fifth half-bridge circuit is connected to the second winding 30b of the motor system 300;

the middle of the sixth half-bridge circuit is connected to the third winding 30c of the motor system 300.

Illustratively, the seventh power device 201, the eighth power device 202, the ninth power device 203, the tenth power device 204, the eleventh power device 205, and the twelfth power device 206 are NPN transistors, an E terminal of the seventh power device 201 is connected to a C terminal of the eighth power device 202, an E terminal of the ninth power device 203 is connected to a C terminal of the tenth power device 204, and an E terminal of the eleventh power device 205 is connected to a C terminal of the twelfth power device 206. The fifth power device 405, the sixth power device 406, the seventh power device 201, the eighth power device 202, the ninth power device 203, and the tenth power device 204 are connected in parallel with diodes at the end E and the end C, and the diodes are turned on unidirectionally from the end E to the end C.

Illustratively, the first power device 401, the second power device 402, the third power device 403, the fourth power device 404, the fifth power device 405, and the sixth power device 406 are N-channel enhancement MOS transistors, an S terminal of the first power device 401 is connected to a D terminal of the second power device 402, an S terminal of the third power device 403 is connected to a D terminal of the fourth power device 404, and an S terminal of the fifth power device 405 is connected to a D terminal of the sixth power device 406. The fifth power device 405, the sixth power device 406, the first power device 401, the second power device 402, the third power device 403, and the fourth power device 404 are connected in parallel with diodes at the S terminal and the D terminal, and the diodes are turned on unidirectionally from the S terminal to the D terminal.

In some embodiments, the rectification module includes: a first branch and a second branch; the first branch is formed by sequentially connecting a thirteenth power device 505 and a fourteenth power device 506; the second branch is formed by sequentially connecting a fifteenth power device 507 and a sixteenth power device 508.

The thirteenth power device 505, the fourteenth power device 506, the fifteenth power device 507 and the sixteenth power device 508 are N-channel enhancement type MOS transistors.

Referring to fig. 4, an embodiment of the present application provides a control method of an integrated system for electric driving and charging, which is applied to the integrated system for electric driving and charging, and the method includes:

Responding to the first working condition, controlling the switching switch K1 to be switched off, and controlling the inversion unit to work so as to enable the inversion unit to change the working state of the motor;

in some embodiments, the first operating condition is controlling vehicle operation.

Illustratively, under normal vehicle operating conditions, the integrated control unit executes an electric drive control mode; the integrated control unit controls the change-over switch K1 to be in an off state, the motor inversion module 200 executes SVPWM control, and the driving motor operates normally.

In response to the second operating condition, the switch K1 is controlled to be turned off to charge the power battery module 100.

In some embodiments, the second operating condition is charging the power cell module 100.

In some embodiments, charging the power battery module 100 includes:

in the first switching sub-period, the first power device 401 is controlled to be turned on, other power devices except the first power device 401 in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are turned off, the auxiliary winding 30a' of the first winding of the motor system 300 establishes a first exciting voltage, the eighth power device 202 is turned on, and other power devices except the eighth power device 202 in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are turned off;

In some embodiments, the first switching sub-period has a duration of D x T/2, T is the switching period, and D is the duty cycle.

In the above implementation, by controlling the first power device 401 to be turned on to establish an excitation voltage for the auxiliary winding 30a' of the first winding, the excitation voltage is isolated and coupled to the first winding 30a, and an isolated coupling voltage is generated at the first winding 30a for charging the power battery. The isolated coupling voltage forms a charging loop through the charging inductor 411, the first capacitor 409, the eighth power device 202 and the power battery module 100, and at this time, current flows in from the positive electrode to the negative electrode of the power battery module 100.

In the second switching sub-period, all power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are controlled to be turned off, the seventh power device 201 is turned on, and other power devices except the seventh power device 201 in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are controlled to be turned off;

in some embodiments, the second switching sub-period has a duration of (1-D) x T/2.

In the above implementation process, the auxiliary winding 30a' of the first winding is in the zero voltage clamping state, and the charging inductor 411 freewheels through the seventh power device 201 and the first capacitor 409, charges the first capacitor 409, and establishes charge-discharge balance for the first capacitor 409.

In the third switching sub-period, controlling other power devices except the second power device 402 in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit to be turned off, wherein the second power device 402 is turned on, the auxiliary winding 30a' of the first winding of the motor system 300 establishes a second exciting voltage, the seventh power device 201 is turned on, and the other power devices except the seventh power device 201 in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are turned off;

in some embodiments, the third switching sub-period has a duration of D x T/2, T is the switching period, and D is the duty cycle.

In the above implementation, the exciting voltage is isolated and coupled to the first winding by controlling the second power device 402 to be turned on to establish the exciting voltage for the auxiliary winding 30a' of the first winding, which generates the isolated coupling voltage for charging the power battery module 100. The isolated coupling voltage forms a charging loop through the charging inductor 411, the second capacitor 410, the seventh power device 201 and the power battery module 100, and current flows in from the positive electrode to the negative electrode of the power battery module 100.

In the fourth switching sub-period, all power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are controlled to be closed, other power devices except the eighth power device 202 in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are controlled to be closed, and the eighth power device 202 is controlled to be on;

In the above implementation process, the auxiliary winding 30a' of the first winding is in the zero voltage clamping state, and the charging inductor 411 freewheels through the eighth power device 202 and the second capacitor 410 to charge the second capacitor 410, so as to establish charge-discharge balance for the second capacitor 410.

In the fifth switching sub-period, the third power device 403 is controlled to be turned on, other power devices except the third power device 403 in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are turned off, the auxiliary winding 30b' of the second winding of the motor system establishes a first exciting voltage, the tenth power device 204 is turned on, and other power devices except the tenth power device 204 in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are turned off;

in some embodiments, the duration of the fifth switching sub-period is DxT/2.

In the above implementation, by controlling the third power device 403 to be turned on to establish an exciting voltage for the auxiliary winding 30a' of the first winding, the exciting voltage is isolated and coupled to the second winding 30b, and an isolated coupling voltage is generated in the second winding 30b, and the isolated coupling voltage is used to charge the power battery. The isolated coupling voltage is conducted through the charging inductor 411, the first capacitor 409 and the tenth power device 204 to form a charging loop with the power battery module 100, and at this time, current flows in from the positive electrode to the negative electrode of the power battery module 100.

In a sixth switching sub-period, all power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are controlled to be turned off, the ninth power device 203 is turned on, and other power devices except the ninth power device 203 in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are controlled to be turned off;

in some embodiments, the sixth switching sub-period has a duration of (1-D) x T/2.

In the above implementation process, the auxiliary winding 30b' of the second winding is in the zero voltage clamping state, the charging inductor 411 freewheels through the ninth power device 203 and the first capacitor 409, charges the first capacitor 409, and establishes charge-discharge balance for the first capacitor 409.

In a seventh switching sub-period, controlling other power devices except the fourth power device 404 in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit to be turned off, wherein the fourth power device 404 is turned on, the auxiliary winding 30b' of the second winding of the motor system establishes a second excitation voltage, the ninth power device 203 is turned on, and the other power devices except the ninth power device 203 in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are turned off;

In some embodiments, the seventh switching sub-period has a duration of D x T/2, T is the switching period, and D is the duty cycle.

In the above implementation, by controlling the fourth power device 404 to be turned on to establish an excitation voltage for the auxiliary winding 30b' of the second winding, the excitation voltage is isolated and coupled to the second winding 30b, and an isolated coupling voltage is generated at the second winding 30b, and the isolated coupling voltage is used to charge the power battery module 100. The isolated coupling voltage forms a charging loop through the charging inductor 411, the second capacitor 410, the ninth power device 203 and the power battery module 100, and current flows in from the positive pole to the negative pole of the power battery module 100.

In the eighth switching sub-period, all power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are controlled to be closed, other power devices except the tenth power device 204 in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are controlled to be closed, and the tenth power device 204 is controlled to be on;

in some embodiments, the eighth switching sub-period has a duration of (1-D) x T/2.

In the above implementation process, the auxiliary winding 30b' of the second winding is in the zero voltage clamping state, and the charging inductor 411 freewheels through the tenth power device 204 and the second capacitor 410 to charge the second capacitor 410, so as to establish charge-discharge balance for the second capacitor 410.

In the ninth switching sub-period, the fifth power device 405 is controlled to be turned on, other power devices except the fifth power device 405 in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are turned off, the auxiliary winding 30c' of the third winding of the motor system establishes a first exciting voltage, the twelfth power device 206 is turned on, and other power devices except the twelfth power device 206 in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are turned on;

in some embodiments, the ninth switching sub-period has a duration of D x T/2, T is the switching period, and D is the duty cycle.

In the above implementation, by controlling the fifth power device 405 to turn on to establish an excitation voltage for the auxiliary winding 30c' of the third winding, the excitation voltage is isolated and coupled to the third winding 30c, and the third winding 30c generates an isolated coupling voltage, which is used to charge the power battery. The isolated coupling voltage is conducted through the charging inductor 411, the first capacitor 409 and the twelfth power device 206 to form a charging loop with the power battery module 100, and at this time, current flows in from the positive electrode to the negative electrode of the power battery module 100.

In a tenth switching sub-period, all power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are controlled to be turned off, the eleventh power device 205 is turned on, and other power devices except the eleventh power device 205 in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are controlled to be turned off;

In some embodiments, the tenth switching sub-period has a duration of (1-D) x T/2.

In the above implementation process, the auxiliary winding 30c' of the third winding is in the zero voltage clamping state, and the charging inductor 411 freewheels through the eleventh power device 205 and the first capacitor 409, charges the first capacitor 409, and establishes charge-discharge balance for the first capacitor 409.

In the eleventh switching period, controlling other power devices except for the sixth power device 406 in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit to be turned off, conducting the sixth power device 406, establishing a second excitation voltage by an auxiliary winding 30c' of a third winding of the motor system, conducting the eleventh power device 205, and closing other power devices except for the eleventh power device 205 in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit;

in some embodiments, the eleventh switching sub-period has a duration of d×t/2, T is a switching period, and D is a duty cycle.

In the above implementation, by controlling the sixth power device 406 to be turned on to establish an excitation voltage for the auxiliary winding 30c' of the third winding, the excitation voltage is isolated and coupled to the third winding 30c, and the third resistor 30c generates an isolated coupling voltage, which is used to charge the power battery module 100. The isolated coupling voltage forms a charging loop through the charging inductor 411, the second capacitor 410, the eleventh power device 205 and the power battery module 100, and the current flows in from the positive electrode to the negative electrode of the power battery module 100.

In the twelve-switch subcycle, all power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are controlled to be closed, and other power devices except the twelfth power device 206 in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are controlled to be closed, and the twelfth power device 206 is controlled to be on;

in some embodiments, the duration of the twelfth switching sub-period is (1-D) x T/2 x 2/3 to (1-D) x T/2.

In the above implementation process, the auxiliary winding 30c' of the third winding is in the zero voltage clamping state, and the charging inductor 411 freewheels through the twelfth power device 206 and the second capacitor 410 to charge the second capacitor 410, so as to establish charge-discharge balance for the second capacitor 410.

For example, referring to fig. 4, a schematic diagram of an operating state of each power switch is shown, where a horizontal axis is a period and a vertical axis is an operating state.

In some embodiments, charging the power battery module 100 includes:

In some embodiments, the first switching sub-period is 0 to (DxT)/2 x (1/3).

In the above implementation, the first power device 401 establishes the exciting voltage for the auxiliary winding 30a' of the first winding, the exciting voltage is isolated and coupled to the first winding 30a, and the first winding 30a generates the isolated coupling voltage, which is used to charge the power battery module 100. The isolated coupling voltage forms a charging loop through the charging inductor 411, the first capacitor 409, the eighth power device 202 and the power battery module 100, and current flows in from the positive electrode to the negative electrode of the power battery module 100.

In the second switching sub-period, the third power device 403 is controlled to be turned on, other power devices except the third power device 403 in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are turned off, the auxiliary winding 30b' of the second winding of the motor system establishes a first exciting voltage, the tenth power device 204 is turned on, and other power devices except the tenth power device 204 in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are turned off;

in some embodiments, the second switching sub-period is (DxT)/2 x (1/3) to (DxT)/2 x (2/3).

In the above implementation, the third power device 403 establishes an exciting voltage for the auxiliary winding 30b' of the second winding, the exciting voltage is isolated and coupled to the second winding 30b, and the second winding 30b generates an isolated coupling voltage, and the isolated coupling voltage is used to charge the power battery. The isolated coupling voltage forms a charging loop through the charging inductor 411, the first capacitor 409, the tenth power device 204 and the power battery module 100, and current flows in from the positive electrode to the negative electrode of the power battery module 100.

In the third switching sub-period, the fifth power device 405 is controlled to be turned on, other power devices except the fifth power device 405 in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are turned off, the auxiliary winding 30c' of the third winding of the motor system establishes a first exciting voltage, the twelfth power device 206 is turned on, and other power devices except the twelfth power device 206 in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are turned on;

in some embodiments, the third switching sub-period is DxT/2 x 2/3~D x T/2.

In the above implementation, the fifth power device 405 is turned on to establish an exciting voltage for the auxiliary winding 30c' of the third winding, the exciting voltage is isolated and coupled to the third winding 30c, and the third winding 30c generates an isolated coupling voltage, which is used to charge the power battery. The isolated coupling voltage forms a charging loop through the charging inductor 411, the first capacitor 409, the twelfth power device 206 and the power battery module 100, and the current flows in from the positive electrode to the negative electrode of the power battery module 100.

In the fourth switching sub-period, all power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are controlled to be turned off, the seventh power device 201 is turned on, and other power devices except the seventh power device 201 in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are controlled to be turned off;

in some embodiments, the fourth switching sub-period is 0 to (1-D) x T/2 x 1/3.

In the above implementation process, the auxiliary winding 30a' of the first winding is in the zero voltage clamping state, the charging inductor freewheels through the seventh power device 201 and the first capacitor 409, charges the first capacitor 409, and establishes charge-discharge balance for the first capacitor 409.

In the fifth switching sub-period, all power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are controlled to be closed, other power devices except the ninth power device 203 in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are controlled to be closed, and the ninth power device 203 is controlled to be on;

in some embodiments, the fifth switching sub-period is (1-D) x T/2 x 2/3 to (1-D) x T/2.

In the above implementation process, the auxiliary winding 30b' of the second winding is in the zero voltage clamping state, the charging inductor freewheels through the ninth power device 203 and the first capacitor 409, charges the first capacitor 409, and establishes charge-discharge balance for the first capacitor 409.

In a sixth switching sub-period, all power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are controlled to be turned off, the eleventh power device 205 is turned on, and other power devices except the eleventh power device 205 in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are controlled to be turned off;

in some embodiments, (1-D) x T/2 x 2/3) - (1-D) x T/2 for the sixth switching sub-period.

In the above implementation process, the auxiliary winding 30c' of the third winding is in the zero voltage clamping state, and the charging inductor freewheels through the eleventh power device 205 and the first capacitor 409, charges the first capacitor 409, and establishes charge-discharge balance for the first capacitor 409.

In a seventh switching sub-period, the second power device 402 is controlled to be turned on, other power devices except the second power device 402 in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are turned off, the auxiliary winding 30a' of the first winding of the motor system 300 establishes a first exciting voltage, the seventh power device 201 is turned on, and other power devices except the seventh power device 201 in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are turned off;

In some embodiments, the seventh switching sub-period is T/2~D ×T/2×1/3.

In the above implementation, the second power device 402 is turned on to establish an exciting voltage for the auxiliary winding 30a' of the first winding, the exciting voltage is isolated and coupled to the first winding 30a, and the first winding 30a generates an isolated coupling voltage for charging the power battery module 100. The isolated coupling voltage forms a charging loop through the charging inductor 411, the second capacitor 410, the seventh power device 201 and the power battery module 100, and current flows in from the positive electrode to the negative electrode of the power battery module 100.

In the eighth switching sub-period, the fourth power device 404 is controlled to be turned on, other power devices except the fourth power device 404 in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are turned off, the auxiliary winding 30b' of the second winding of the motor system establishes a first exciting voltage, the ninth power device 203 is turned on, and other power devices except the ninth power device 203 in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are turned on;

in some embodiments, the eighth switching sub-period is T/2+D ×T/2×1/3~T/2+D ×T/2×2/3.

In the above implementation, the fourth power device 404 is turned on to establish an exciting voltage for the auxiliary winding 30b' of the second winding, the exciting voltage is isolated and coupled to the second winding 30b, and the second winding 30b generates an isolated coupling voltage, which is used to charge the power battery module 100. The isolated coupling voltage forms a charging loop through the charging inductor 411, the second capacitor 410, the ninth power device 203 and the power battery module 100, and current flows in from the positive pole to the negative pole of the power battery module 100.

In the ninth switching sub-period, the sixth power device 406 is controlled to be turned on, other power devices except the sixth power device 406 in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are turned off, the auxiliary winding 30c' of the third winding of the motor system establishes a first exciting voltage, the eleventh power device 205 is turned on, and other power devices except the eleventh power device 205 in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are turned off;

in some embodiments, the ninth switching sub-period is T/2+D ×T/2×2/3~T/2+D ×T/2.

In the above implementation, the auxiliary winding 30c' of the third winding is turned on by the sixth power device 406 to establish an exciting voltage, which is isolated and coupled to the third winding 30c, and the third winding 30c generates an isolated coupling voltage, which is used to charge the power battery module 100. The isolated coupling voltage forms a charging loop through the charging inductor 411, the second capacitor 410, the eleventh power device 205 and the power battery module 100, and the current flows in from the positive electrode to the negative electrode of the power battery module 100.

In a tenth switching sub-period, all power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are controlled to be turned off, the eighth power device 202 is turned on, and other power devices except the eighth power device 202 in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are controlled to be turned off;

In some embodiments, the tenth switching sub-period is T/2+D ×T/2~T/2+ (1-D) ×T/2×1/3.

In the eleventh switching sub-period, all power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are controlled to be closed, other power devices except the tenth power device 204 in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are controlled to be closed, and the tenth power device 204 is controlled to be on;

in some embodiments, the eleventh switching sub-period is T/2+ (1-D) x T/2 x 1/3~T/2+ (1-D) x T/2 x 2/3.

In the twelfth switching sub-period, all the power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are controlled to be turned off, the twelfth power device 206 is turned on, and the other power devices except for the twelfth power device 206 in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are controlled to be turned on.

In some embodiments, the twelfth switching sub-period is T/2+ (1-D) x T/2 x 2/3~T/2+ (1-D) x T/2.

For example, referring to fig. 5, a schematic diagram of the operation states of the power switches is shown.

In some embodiments, charging the power battery module 100 includes: in the first switching sub-period, the first power device 401, the third power device 403 and the fifth power device 405 are controlled to be turned on, the second power device 402, the fourth power device 404 and the sixth power device 406 are turned off, the auxiliary winding 30a ' of the first winding, the auxiliary winding 30b ' of the second winding and the auxiliary winding 30c ' of the third winding of the motor system 300 respectively establish a first excitation voltage, and the eighth power device 202, the tenth power device 204 and the twelfth power device 206 are controlled to be turned on, and the seventh power device 201, the ninth power device 203 and the eleventh power device 205 are turned off;

in some embodiments, the first switch sub-period is D x T/2 in duration.

In the above implementation, by controlling the first power device 401, the third power device 403, and turning on the fifth power device 405 to establish an excitation voltage for the auxiliary winding 30a ' of the first winding, the auxiliary winding 30b ' of the second winding, and the auxiliary winding 30c ' of the third winding, the excitation voltage is isolated and coupled to the first winding 30a, the second winding 30b, and the third winding 30c, and the first winding 30a, the second winding 30b, and the third winding 30c generate an isolated coupling voltage, which is used to charge the power battery. The isolated coupling voltage forms a charging loop through the charging inductor 411, the first capacitor 409, the eighth power device 202, the tenth power device 204, the twelfth power device 206 and the power battery module 100, and at this time, current flows in from the positive electrode to the negative electrode of the power battery module 100.

In the second switching subcycle, all power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are controlled to be turned off, the seventh power device 201, the ninth power device 203 and the eleventh power device 205 are turned on, and the eighth power device 202, the tenth power device 204 and the twelfth power device 206 are turned off;

In the above implementation process, the auxiliary winding 30a ' of the first winding, the auxiliary winding 30b ' of the second winding, and the auxiliary winding 30c ' of the third winding are set in the zero-voltage clamping state, and the charging inductor 411 is turned on by the seventh power device 201, the ninth power device 203, and the eleventh power device 205, and the first capacitor 409 freewheels, so as to charge the first capacitor 409, and establish charge-discharge balance for the first capacitor 409.

In the third switching sub-period, the first power device 401, the third power device 403 and the fifth power device 405 are controlled to be turned off, the second power device 402, the fourth power device 404 and the sixth power device 406 are controlled to be turned on, the auxiliary winding 30a ' of the first winding, the auxiliary winding 30b ' of the second winding and the auxiliary winding 30c ' of the third winding of the motor system 300 establish a second excitation voltage, the seventh power device 201, the ninth power device 203 and the eleventh power device 205 are controlled to be turned on, and the eighth power device 202, the tenth power device 204 and the twelfth power device 206 are controlled to be turned off;

in some embodiments, the third switching sub-period has a duration of DxT/2.

In the above implementation, by controlling the second power device 402, the fourth power device 404, and the sixth power device 406 to be turned on as the auxiliary winding 30a ' of the first winding, the auxiliary winding 30b ' of the second winding, and the auxiliary winding 30c ' of the third winding, an excitation voltage is established, which is isolated and coupled to the first winding 30a, the second winding 30b, and the third winding 30c, and the first winding 30a, the second winding 30b, and the third winding 30c generate an isolated and coupled voltage, which is used to charge the power battery module 100. The isolated coupling voltage forms a charging loop through the charging inductor 411, the second capacitor 410, the seventh power device 201, the ninth power device 203, the eleventh power device 205 and the power battery module 100, and current flows in from the positive pole to the negative pole of the power battery module 100.

In the fourth switching sub-period, all power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are controlled to be turned off, the seventh power device 201, the ninth power device 203 and the eleventh power device 205 are controlled to be turned off, and the eighth power device 202, the tenth power device 204 and the twelfth power device 206 are controlled to be turned on.

In some embodiments, the fourth switching sub-period has a duration of (1-D) x T/2.

In the above implementation process, the auxiliary winding 30a ' of the first winding, the auxiliary winding 30b ' of the second winding, and the auxiliary winding 30c ' of the third winding are in the zero voltage clamping state, and the charging inductor 411 freewheels through the eighth power device 202, the tenth power device 204, and the twelfth power device 206 to charge the second capacitor 410, so as to establish charge-discharge balance for the second capacitor 410.

In the embodiment of the application, T is the period of controlling the power switch, and the unit is seconds/millisecond; d is a control duty ratio of 0-100%.

For example, referring to fig. 6, in an embodiment of the present application, the first exciting voltage may be 0 Vdc/2, the second exciting voltage may be-Vdc/2, vd is a voltage across the rectifying unit during charging, and the relative magnitude relationship between the first exciting voltage and the second exciting voltage may be changed by changing the relative relationship between the capacitance values of the first capacitor 409 and the second capacitor 410.

The application further provides an electronic device, please refer to fig. 7, and fig. 7 is a block diagram of an electronic device according to an embodiment of the application. The electronic device may include a processor 71, a communication interface 72, a memory 73, and at least one communication bus 74. Wherein the communication bus 74 is used to enable direct connection communication of these components. The communication interface 72 of the electronic device in the embodiment of the present application is used for performing signaling or data communication with other node devices. The processor 71 may be an integrated circuit chip with signal processing capabilities.

The processor 71 may be a general-purpose processor, including a central processing unit (CPU, centralProcessingUnit), a network processor (NP, networkProcessor), etc.; but may also be a Digital Signal Processor (DSP), application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. The general purpose processor may be a microprocessor or the processor 71 may be any conventional processor or the like.

The Memory 73 may be, but is not limited to, random access Memory (RAM, randomAccessMemory), read Only Memory (ROM), programmable Read Only Memory (PROM, programmable Read-Only Memory), erasable Read Only Memory (EPROM, erasable Programmable Read-Only Memory), electrically erasable Read Only Memory (EEPROM, electric Erasable Programmable Read-Only Memory), etc. The memory 73 has stored therein computer readable instructions which, when executed by the processor 71, can perform the steps involved in the above-described method embodiments.

Optionally, the electronic device may further include a storage controller, an input-output unit.

The memory 73, the memory controller, the processor 71, the peripheral interface, and the input/output unit are electrically connected directly or indirectly to each other, so as to realize data transmission or interaction. For example, the components may be electrically coupled to each other via one or more communication buses 74. The processor 71 is arranged to execute executable modules stored in a memory 73, such as software functional modules or computer programs comprised by an electronic device.

The input-output unit is used for providing the user with the creation task and creating the starting selectable period or the preset execution time for the task so as to realize the interaction between the user and the server. The input/output unit may be, but is not limited to, a mouse, a keyboard, and the like.

It will be appreciated that the configuration shown in fig. 7 is merely illustrative, and that the electronic device may also include more or fewer components than those shown in fig. 7, or have a different configuration than that shown in fig. 7. The components shown in fig. 7 may be implemented in hardware, software, or a combination thereof.

The embodiment of the application also provides a vehicle comprising the automobile electric drive and charging integrated system.

The embodiment of the application also provides a vehicle, and a control method for executing the automobile electric drive and charging integrated system.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The apparatus embodiments described above are merely illustrative, for example, of the flowcharts and block diagrams in the figures that illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

In addition, functional modules in the embodiments of the present application may be integrated together to form a single part, or each module may exist alone, or two or more modules may be integrated to form a single part.

The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Claims

1. An integrated electrically powered and rechargeable system, comprising:

the auxiliary winding is connected with the charging module.

2. The integrated electrical drive and charge system of claim 1, wherein the charge module comprises: the charging inductor, the charging capacitor branch, the voltage division capacitor branch, the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit;

3. The integrated electric drive and charge system of claim 2, wherein the motor inverter module comprises:

4. A control method of an integrated electric drive and charge system, comprising: responding to a first working condition, controlling a change-over switch to be disconnected, and controlling a motor inversion module to work so as to enable the motor inversion module to change the working state of the motor;

and responding to the second working condition, and controlling the switching switch to be closed to charge the power battery module.

5. The method of claim 4, wherein charging the power cell module comprises:

in a twelve-switch subcycle, all power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are controlled to be closed, and other power devices except the twelfth power device in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are controlled to be closed, and the twelfth power device is turned on;

vdc is the rectified voltage.

6. The method of claim 4, wherein charging the power cell module comprises:

In a fifth switching sub-period, all power devices in the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are controlled to be closed, and other power devices except a ninth power device in the fourth half-bridge circuit, the fifth half-bridge circuit and the sixth half-bridge circuit are controlled to be closed, wherein the ninth power device is conducted;

7. The method of claim 4, wherein charging the power cell module comprises: in a first switching sub-period, controlling the first power device, the third power device and the fifth power device to be conducted, closing the second power device, the fourth power device and the sixth power device, respectively establishing a first excitation voltage by an auxiliary winding of a first winding, an auxiliary winding of a second winding and an auxiliary winding of a third winding of a motor system, and closing the eighth power device, the tenth power device and the twelfth power device;

8. A vehicle comprising an integrated electric drive and charge system as claimed in any one of claims 1 to 3.

9. A vehicle characterized by executing the control method of the integrated electric drive and charge system according to any one of claims 4 to 7.

10. An electronic device, comprising: memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the method according to any of claims 4-7 when the computer program is executed.