CN115071459B - Control method and equipment for bidirectional vehicle-mounted charger and motor controller integrated equipment - Google Patents

Control method and equipment for bidirectional vehicle-mounted charger and motor controller integrated equipment Download PDF

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Publication number
CN115071459B
CN115071459B CN202210826301.4A CN202210826301A CN115071459B CN 115071459 B CN115071459 B CN 115071459B CN 202210826301 A CN202210826301 A CN 202210826301A CN 115071459 B CN115071459 B CN 115071459B
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China
Prior art keywords
power supply
circuit
access unit
state
switch assembly
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CN202210826301.4A
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Chinese (zh)
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CN115071459A (en
Inventor
姚佳汛
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Hozon New Energy Automobile Co Ltd
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Hozon New Energy Automobile Co Ltd
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Priority to CN202210826301.4A priority Critical patent/CN115071459B/en
Publication of CN115071459A publication Critical patent/CN115071459A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/20Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
    • B60L53/22Constructional details or arrangements of charging converters specially adapted for charging electric vehicles
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0063Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0068Battery or charger load switching, e.g. concurrent charging and load supply
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/16Arrangements 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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2207/00Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20Charging or discharging characterised by the power electronics converter
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/14Plug-in electric vehicles

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The control method of the integrated equipment of the bidirectional vehicle-mounted charger and the motor controller comprises the steps that a detection unit performs detection on an access unit based on an acquired instruction, and acquires the state of the access unit; the control unit controls the state of the switch assembly according to the state of the access unit or the access unit acquired by the detection unit, and enables the access unit to charge the power battery or enables the power battery to supply power to the access unit based on the opening and closing of the switch assembly; the switch assembly comprises a switch device and a bidirectional buck-boost circuit. The integrated equipment of the bidirectional vehicle-mounted charger and the motor controller provided by the invention has the advantages that the two power devices are shared and can support the 800V high-voltage platform, and the integrated equipment is applied to the increased charging power and motor power, so that the charging and discharging efficiency is improved, the vehicle driving efficiency is improved, and the whole vehicle cost is saved.

Description

Control method and equipment for bidirectional vehicle-mounted charger and motor controller integrated equipment
Technical Field
The invention belongs to the technical field of electric automobile control, and particularly relates to a bidirectional vehicle-mounted charger and motor controller integrated device and a control method thereof.
Background
In recent years, the electric automobile has the advantages of energy conservation and environmental protection, and the occupancy rate of the electric automobile in the market is steadily increased in popularization. The voltage of the high-voltage platform of most electric vehicles is 400V, but the high-voltage platform with the voltage of 800V is a better choice to meet the requirements of rapidly rising charging power and motor power at present.
The bidirectional vehicle-mounted charger on the electric automobile can realize bidirectional flow of power grid alternating current and power battery direct current, and the motor controller can convert the power battery electric energy into the kinetic energy of the electric automobile, so that the bidirectional vehicle-mounted charger has irreplaceable functions. At present, most of bidirectional vehicle-mounted chargers and motor controllers work in a split or simple physical integrated mode, deep fusion of power devices is not achieved, the cost is high, the efficiency of charging alternating current or direct current under a high-voltage platform with 400V is low, and considering that the bidirectional vehicle-mounted chargers and the motor controllers are both energy conversion devices, design and development of integrated equipment of the bidirectional vehicle-mounted chargers and the motor controllers are needed, the two power devices are shared and can support the 800V high-voltage platform, and the integrated equipment is applied to the lifted charging power and the motor power, so that the vehicle driving efficiency is improved while the charging and discharging efficiency is improved, and the whole vehicle cost is still very necessary and urgent.
Disclosure of Invention
The invention aims to provide a control method and equipment for integrated equipment of a bidirectional vehicle-mounted charger and a motor controller, which are used for sharing power devices of the bidirectional vehicle-mounted charger and the motor controller and supporting an 800V high-voltage platform, and the integrated equipment formed by the bidirectional vehicle-mounted charger and the motor controller is applied to the lifted charging power and the motor power, so that the charging and discharging efficiency is improved, the driving efficiency of a vehicle is improved, the whole vehicle cost is saved, and the technical problems that the power devices of the bidirectional vehicle-mounted charger and the motor controller cannot be deeply fused, the cost is high, and the charging efficiency of alternating current or direct current is low under a high-voltage platform with 400V voltage are solved.
The aim and the technical problems of the invention are realized by adopting the following technical proposal.
The first aspect of the present invention provides a control method for a bidirectional vehicle-mounted charger and motor controller integrated device, the control method comprising: the detection unit is used for executing detection of the access unit based on the acquired instruction and acquiring the state of the access unit; the control unit controls the state of the switch assembly according to the state of the access unit or the access unit acquired by the detection unit, and enables the access unit to charge the power battery or enables the power battery to supply power to the access unit based on the opening and closing of the switch assembly; the switch assembly comprises a switch device and a bidirectional buck-boost circuit.
Optionally, the detecting unit performs detection of the access unit based on the acquired instruction, and acquiring the state of the access unit includes: the detection unit acquires an instruction of accessing to charging, performs detection of a power parameter of an accessed power supply, and acquires a type, voltage and current value of the accessed power supply; or the detection unit acquires an instruction for driving the vehicle, performs detection on motor parameters and motor circuits of the vehicle, and acquires motor rated parameters and states of the motor circuits of the vehicle; or the detection unit acquires an instruction for outputting electric energy from the outside, and outputs alternating current or direct current with preset voltage to the external connection end.
Optionally, the control unit controls the state of the switch component according to the state of the access unit or the access unit acquired by the detection unit, and based on the opening and closing of the switch component, the step of charging the power battery by the access unit or supplying the power battery to the access unit includes: the control unit controls the state of the switch assembly according to the condition that the access unit acquired by the detection unit is a direct current charging power supply, and charges the power battery after the voltage of the accessed direct current power supply is increased to a set direct current power supply voltage value by forming a BOOST circuit based on the opening and closing of the switch assembly; or the control unit controls the state of the switch assembly according to the condition that the access unit acquired by the detection unit is an alternating current charging power supply, and charges the power battery after the voltage of the accessed alternating current power supply is increased to a set direct current power supply voltage value by forming a bridgeless PFC circuit and a BOOST circuit based on the opening and closing of the switch assembly; or the control unit controls the switch assembly to be opened or closed according to the state of the access unit acquired by the detection unit as the vehicle driving state or the external power transmission state, the voltage output by the power battery is reduced to a set direct current power supply voltage value by forming a BUCK circuit, and the voltage is inverted into preset alternating current by a full-bridge circuit and then is output.
Optionally, when the access unit is a dc charging power supply, controlling a state of the switch assembly, and based on the opening and closing of the switch assembly, charging the power battery after the voltage of the accessed dc power supply is increased to a set dc power supply voltage value by forming a BOOST circuit includes: and respectively opening part of the switching device and closing the other part of the switching device, opening part of the metal oxide semiconductor field effect transistor of the bidirectional buck-BOOST circuit, forming a BOOST circuit by controlling the opening and closing of the other part of the metal oxide semiconductor field effect transistor, and charging the power battery after the connected direct current power supply is raised to the direct current power supply with the set voltage value.
Optionally, the step of forming a BOOST circuit to BOOST the connected dc power supply voltage to a set dc power supply voltage value, and then charging the power battery further includes:
And when the accessed direct current power supply voltage is increased to a set direct current power supply voltage value, the power battery is charged, and meanwhile, a power switch in a control component for converting electric energy and kinetic energy is turned off, so that the connected motor end is powered off.
Optionally, when the access unit is an ac charging power supply, controlling a state of the switch assembly, and based on opening and closing of the switch assembly, charging the power battery after the accessed ac power supply voltage rises to a set dc power supply voltage value by forming a bridgeless PFC circuit and a BOOST circuit includes: and respectively opening part of the switching device and closing the other part of the switching device, inputting the connected alternating current power supply into a filter, connecting the filter with a bridge arm of a motor controller to form a bridgeless PFC circuit, converting the alternating current power supply into a direct current power supply with a set voltage value by controlling the opening and closing of a power switch in a control part for converting electric energy and kinetic energy, disconnecting part of the metal oxide semiconductor field effect transistors in the bidirectional buck-BOOST circuit, and charging a power battery after the direct current power supply voltage with the set voltage value is boosted to a preset voltage by controlling a BOOST circuit formed by the opening and closing of the other part of the metal oxide semiconductor field effect transistors in the bidirectional buck-BOOST circuit.
Optionally, the control unit controls the on/off of the switch assembly according to the state of the access unit acquired by the detection unit as the vehicle driving state, and the voltage output by the power battery is reduced to a set dc power supply voltage value by forming the BUCK circuit, and the output after being inverted into a preset ac power by the full bridge circuit includes: the control unit is used for respectively opening part of the switching devices and closing the other part of the switching devices according to the state of the access unit acquired by the detection unit as a vehicle driving state, opening part of the metal oxide semiconductor field effect transistors in the bidirectional BUCK-boost circuit, forming a BUCK circuit by controlling the opening and closing of the other part of the metal oxide semiconductor field effect transistors in the bidirectional BUCK-boost circuit, reducing the voltage of the power battery to the direct current power supply voltage with a set voltage value, inverting the direct current power supply voltage into a preset alternating current power supply through the motor controller circuit, and outputting the alternating current power supply voltage to the motor; or when the state of the access unit acquired by the detection unit is an external power transmission state, the control unit respectively opens part of the switching device and closes the other part of the switching device, opens part of the metal oxide semiconductor field effect transistors in the bidirectional BUCK-boost circuit, forms a BUCK circuit by controlling the opening and closing of the other part of the metal oxide semiconductor field effect transistors in the bidirectional BUCK-boost circuit, reduces the voltage of the power battery to a direct current power supply with a set voltage value, and then inverts the direct current power supply into alternating current with a preset voltage value through a full-bridge circuit formed by the insulated gate bipolar transistors and outputs the alternating current.
Optionally, the inverting the full-bridge circuit formed by the insulated gate bipolar transistors into the alternating current with the preset voltage value and then outputting the alternating current to the outside further includes:
the alternating current with the preset voltage value is filtered by the filter and then is output to the outside.
The second aspect of the invention provides a bidirectional vehicle-mounted charger and motor controller integrated device, which comprises a detection unit and a control unit; the detection unit is connected with the control unit and the access unit and is used for executing detection of the access unit based on the acquired instruction and acquiring the state of the access unit; the control unit is connected with the access unit and is used for controlling the state of the switch assembly according to the state of the access unit acquired by the detection unit and enabling the access unit to charge the power battery or enabling the power battery to supply power to the access unit based on the opening and closing of the switch assembly; the switch assembly comprises a switch device and a bidirectional buck-boost circuit.
Optionally, the integrated device further includes: a motor, motor controller circuit; the detection unit is respectively connected with the motor, the motor controller circuit and the switch component; the control unit is respectively connected with the motor, the motor controller circuit and the switch component; the motor controller circuit is connected with the bidirectional buck-boost circuit in series, and an insulated gate bipolar transistor connected in parallel on the motor controller circuit is bridged with the winding of the motor; the alternating-current end is arranged between the motor and the motor controller circuit, and the alternating-current end is provided with a filter; the direct-current end is arranged between the motor controller circuit and the bidirectional buck-boost circuit; the power battery is respectively connected with the bidirectional buck-boost circuit and the motor controller circuit in parallel.
Compared with the prior art, the invention has obvious advantages and beneficial effects. By means of the technical scheme, the invention has at least one of the following advantages and beneficial effects:
1. The detection unit is used for executing the detection of the access unit based on the acquired instruction, and acquiring the state of the access unit; the control unit controls the state of the switch assembly according to the state of the access unit or the access unit acquired by the detection unit, and enables the access unit to charge the power battery or enables the power battery to supply power to the access unit based on the opening and closing of the switch assembly; the switch assembly comprises a switch device and a bidirectional buck-boost circuit. Based on the detection unit and the control unit, the bidirectional vehicle-mounted charger circuit and the motor controller circuit enable the two power devices of the bidirectional vehicle-mounted charger and the motor controller to be in deep fusion and sharing under the opening and closing of the switch assembly, and the bidirectional vehicle-mounted charger and the motor controller can also support 800V high-voltage platforms to charge and transmit power to the outside.
2. According to the invention, the two power devices of the bidirectional vehicle-mounted charger and the motor controller are deeply fused and shared, so that the 800V high-voltage platform is supported to charge and externally transmit power, the charging and discharging efficiency is improved, the vehicle driving efficiency is improved, and the whole vehicle cost is saved.
The foregoing description is only an overview of the present invention, and is intended to be implemented in accordance with the teachings of the present invention, as well as the preferred embodiments thereof, together with the following detailed description of the invention, given by way of illustration only, together with the accompanying drawings.
Drawings
FIG. 1 is a flow chart of a control method according to an embodiment of the invention;
Fig. 2 is a schematic circuit diagram of a bidirectional vehicle-mounted charger and motor controller integrated device according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a bidirectional vehicle-mounted charger and a motor controller integrated device according to an embodiment of the present invention when a dc power supply is charged;
Fig. 4 is a schematic circuit diagram of a bidirectional vehicle-mounted charger and a motor controller integrated device according to an embodiment of the present invention when an ac power supply is charged;
fig. 5 is a schematic circuit diagram of a power battery driving motor according to an embodiment of the present invention;
fig. 6 is a schematic circuit diagram of a power battery according to an embodiment of the present invention when outputting direct current to the outside;
Fig. 7 is a schematic circuit diagram of a power battery according to an embodiment of the present invention when outputting ac power to the outside;
fig. 8 is a schematic circuit diagram of a bidirectional vehicle-mounted charger and motor controller integrated device according to an embodiment of the invention.
Detailed Description
In order to further describe the technical means and effects adopted by the present invention for achieving the preset purpose, the following detailed description refers to the specific implementation, structure, characteristics and effects according to the present invention with reference to the accompanying drawings and preferred embodiments.
The control method of the integrated equipment of the bidirectional vehicle-mounted charger and the motor controller in the embodiment is shown in fig. 1 and 2, and the control method of the integrated equipment comprises the following steps: the detection unit performs detection of the access unit based on the acquired instruction, and acquires the state of the access unit. The command includes a command to access charging, a command to output electric energy to the outside, a command to drive the vehicle, and the like. The access unit may be an access charging power source, an external power consumption device, a motor and a motor driving circuit of the host vehicle, and the like. For example, the detection unit performs detection of the accessed charging power supply based on the acquired instruction to access charging, and acquires the relevant type and parameter of the accessed charging power supply and the relevant current state. Or the detection unit may perform detection of the motor and the motor driving circuit of the vehicle based on the acquired instruction to drive the vehicle, acquire the relevant parameters of the motor of the vehicle, the current state of the motor driving circuit, and the like. Or the detection unit may perform detection of the external power consumption device based on the acquired instruction to output power to the external power consumption device, acquire a relevant parameter of the external power consumption device, a current state of the external power consumption device, and the like. Such as the related parameters of the external power consumption device including, but not limited to, rated power, maximum limiting current parameter, etc., and the state of the external power consumption device at the present moment, etc.
In the embodiment of the invention, the control unit controls the state of the switch assembly according to the state of the access unit or the access unit acquired by the detection unit, and based on the opening and closing of the switch assembly, the access unit charges the power battery or supplies power to the access unit by the power battery, and the switch assembly comprises a switch device and a bidirectional buck-boost circuit. Specifically, for example, when the instruction is an instruction of accessing to charge, the control unit controls the on-off state of the switch assembly according to the related parameters of the accessed charging power source, which may be related parameters such as a power type, a voltage value, and the like of the accessed charging power source, for example, the control unit controls the on-off state of the branch circuit on the switch device to be in an open circuit or an electrically connected state respectively by controlling the opening or closing of a part of the switch device, and controls the on-off state of the related circuit branch circuit in the bidirectional buck-boost circuit to enable the part of the branch circuit of the circuit accessed to the bidirectional buck-boost circuit to be in an open circuit, and the other part of the branch circuit to be in a closed electrically connected state. The control unit opens and closes the controlled circuit branch based on the circuit branch controlled by the open-circuit or closed electric connection switching device and the connected bidirectional buck-boost circuit to form a charging circuit of the connected charging power supply, so that the connected charging power supply charges the power battery through the charging circuit.
In an embodiment of the present invention, when the instruction is an instruction for outputting electric energy to the outside, the control unit may obtain, according to the related parameter of the external power consumption device obtained by the detection unit, the related parameter may be a power type, a rated power, a maximum voltage value, a maximum overcurrent value, and other related parameters of the external power consumption device. The control unit controls the opening and closing states of the switch assembly, for example, the control unit controls the opening or closing of a part of the switch device to enable branches on the switch device to be in an open circuit or an electric connection state respectively, and enables the on-off of related circuit branches in the bidirectional buck-boost circuit to enable part of the branches of the circuit connected into the bidirectional buck-boost circuit to be in the open circuit, and the other part of the branches to be in the closed electric connection state. The control unit opens and closes the controlled circuit branch based on the circuit branch controlled by the open-circuit or closed electric connection switching device and the connected bidirectional buck-boost circuit to form a power battery, so that the power battery supplies power to and outputs power to the connected external power consumption equipment.
In an embodiment of the present invention, when the command is a command for driving the vehicle, the control unit may be a power supply parameter used by the motor and the motor driving circuit of the vehicle according to the relevant parameters and states of the motor and the motor driving circuit of the vehicle obtained by the detection unit, where the parameters include, but are not limited to, relevant parameters such as a power supply type, a rated power, a maximum voltage value, a maximum overcurrent value, and the like. The control unit controls the opening and closing states of the switch assembly, for example, the control unit controls the opening or closing of a part of the switch device to enable branches on the switch device to be in an open circuit or an electric connection state respectively, and enables the on-off of related circuit branches in the bidirectional buck-boost circuit to enable part of the branches of the circuit connected into the bidirectional buck-boost circuit to be in the open circuit, and the other part of the branches to be in the closed electric connection state. The control unit opens and closes the controlled circuit branch based on the circuit branch controlled by the open-circuit or closed electric connection switching device and the access bidirectional voltage-boosting and reducing circuit to form a power battery, so that the power battery supplies power to and outputs the motor and the motor driving circuit of the vehicle.
In one embodiment of the present invention, the detecting unit performs detection of the access unit based on the acquired instruction, and acquiring the state of the access unit includes: the detection unit acquires an instruction of accessing to charging, performs detection of a power parameter of an accessed power supply, and acquires a type, voltage and current value of the accessed power supply; or the detection unit acquires an instruction for driving the vehicle, performs detection on motor parameters and motor circuits of the vehicle, and acquires motor rated parameters and states of the motor circuits of the vehicle; or the detection unit acquires an instruction for outputting electric energy from the outside, and outputs alternating current or direct current with preset voltage to the external connection end.
Specifically, when the detection unit obtains an instruction of accessing to charging, the detection is performed on a power parameter of the accessed power source, where the parameter may be a power type of the accessed charging power source, a voltage value, a current value, and the like, and a parameter related to a maximum peak value of the voltage value and the current value. The related parameters of the type, the voltage and the current value and the maximum peak value of the voltage value and the current value of the access power supply are acquired through the detection unit, so that the danger caused by high voltage or overcurrent in the charging process is avoided.
When the detection unit obtains an instruction for driving the vehicle, the detection unit detects the current state of the motor parameter and the motor driving circuit of the current vehicle, and obtains the current state conditions of the motor rated parameter and the motor driving circuit of the current vehicle. Or when the detection unit obtains an instruction for outputting electric energy to the outside, outputting alternating current or direct current with preset voltage to the connecting end of the external power consumption equipment. For example, when the external power consumption equipment needs to output alternating current, 220V or 380V alternating current is generally output to the outside; or 220V, 110V, 48V, 24V and the like are generally output when direct current is output externally, and a circuit module for regulating voltage and current can be arranged in front of the connecting end of the output power supply of the external power consumption equipment in special cases, so that the output is matched with the voltage and current value of the external power consumption equipment.
In one embodiment of the present invention, the control unit controls the state of the switch assembly according to the state of the access unit or the access unit acquired by the detection unit, and based on the opening and closing of the switch assembly, the charging of the power battery by the access unit or the power supply of the power battery to the access unit includes: when the control unit is a direct current charging power supply according to the access unit acquired by the detection unit, the control unit controls the state of the switch assembly, and based on the opening and closing of the switch assembly, the control unit enables the voltage of the accessed direct current power supply to rise to a set direct current power supply voltage value through the BOOST circuit, and then charges the power battery.
Specifically, as shown in fig. 2, the motor controller circuit is connected in series with the bidirectional buck-boost circuit, the motor controller circuit is formed by connecting three groups of branches formed by insulated gate bipolar transistors (I GBT) Q1 and Q6, Q2 and Q5, and Q3 and Q4 in parallel, the bidirectional buck-boost circuit is formed by connecting four groups of branches formed by a capacitor C1, a PMOS transistor Q9, a PMOS transistor Q10 and a capacitor C2 in parallel, a PMOS transistor Q7 is arranged between anode branches connected in parallel between the capacitor C1 and the PMOS transistor Q9, an inductance element L4 is arranged between anode branches connected in parallel between the PMOS transistor Q9 and the PMOS transistor Q10, and a PMOS transistor Q8 is arranged between anode branches connected in parallel between the PMOS transistor Q10 and the capacitor C2. And a direct current access connection end DC+ and a direct current access connection end DC-are respectively connected between the motor controller circuit and the positive pole branch and the negative pole branch which are connected in series with the bidirectional buck-boost circuit, and relay switches K4 and K5 are respectively arranged on the direct current access connection line. The positive branch of the bidirectional buck-boost circuit is connected with the positive pole of the power Battery (BAT), and the negative branch of the bidirectional buck-boost circuit is connected with the negative pole of the power Battery (BAT). The insulated gate bipolar transistors (igbt) connected in parallel on the motor controller circuit are bridged with the windings of the motor, as shown in fig. 2, and the three windings L1, L2 and L3 of the motor are respectively and electrically connected between the insulated gate bipolar transistors (igbt) Q1 and Q6, between Q2 and Q5 and between Q3 and Q4 in three groups of parallel branches on the motor controller circuit. An alternating current power supply access end is arranged between the winding L3 and the motor controller, a relay switch K1 is arranged between two access ends of the alternating current power supply between the winding L3 and the motor controller, an L pole access branch line of the alternating current power supply is connected with a position close to the winding L3 of the motor, and an N pole access branch line of the alternating current power supply is connected with a position close to the motor controller. And a filter (EMI) is arranged between the L pole and the N pole of the alternating current power supply and the access branch line of the relay switch K1.
Specifically, when the access unit is a direct current charging power supply, the control unit controls the state of the switch assembly to be opened or closed according to the voltage and the current of the direct current charging power supply and the state of the current direct current charging power supply, for example, the switch assembly comprises a relay switch, the control unit controls the state of a part of the relay switch in the direct current charging circuit to be opened or closed, in addition, a bidirectional buck-BOOST circuit formed by adjusting a PMOS (P-channel metal oxide semiconductor) tube is used, a part of branches of the bidirectional buck-BOOST circuit are opened or another part of branches are closed to be communicated, and a BOOST circuit is formed by the bidirectional buck-BOOST circuit, so that the accessed direct current power supply voltage is increased to a set direct current power supply voltage value and then the power battery is charged.
When the access unit acquired by the detection unit is an alternating current charging power supply, the control unit controls the state of the switch assembly, and based on the opening and closing of the switch assembly, the power battery is charged after the accessed alternating current power supply voltage is increased to a set direct current power supply voltage value by forming a bridgeless PFC circuit and a BOOST circuit. Specifically, as shown in fig. 2 and 4, when the access unit is an ac charging power source, the control unit controls the state of opening or closing of the switch assembly, for example, the switch assembly includes a relay switch, according to the voltage, the current and the frequency of the ac charging power source, whether the current state of the ac charging power source is stable or not, which are obtained by the detection unit, and the control unit controls the bridging relationship between an insulated gate bipolar transistor (I GBT) in a motor controller circuit and windings on the motor in the ac charging circuit, so as to form a bridgeless PFC circuit, and when the control unit controls the opening and closing of the insulated gate bipolar transistors (I GBT) Q1 to Q6, the control unit converts the ac power into the dc power. For example, the bridgeless PFC circuit can convert 220V ac power into 400V dc power, and the control unit controls the bidirectional buck-BOOST circuit to form a BOOST circuit, so that the converted dc power is boosted to a set dc power supply voltage value. The BOOST circuit configured as described above can BOOST 400V dc power to a set dc power supply voltage value and then charge the power battery.
When the control unit is in a vehicle driving state or an external power transmission state according to the access unit state acquired by the detection unit, the control unit controls the switch assembly to be opened and closed, the voltage output by the power battery is reduced to a set direct-current power supply voltage value through the BUCK circuit, and the voltage is inverted into a preset alternating current through the full-bridge circuit and then is output. Specifically, as shown in fig. 2, when the control unit only uses the state of the access unit acquired by the detection unit as the vehicle driving state, the control unit controls the switch of the relay of the switch assembly to switch on or off, and the control unit makes the PMOS tube of the branch in the bidirectional BUCK-boost circuit be in the off state, as shown in fig. 5, and makes the voltage output by the power battery drop to the set dc power supply voltage value through the switch of the other PMOS tubes of the branch in the bidirectional BUCK-boost circuit. For example, the BUCK circuit configured as described above may be used to step down the voltage of the power battery to a dc power supply voltage value of 400V, and the control unit may be used to control the full-bridge circuit configured by insulated gate bipolar transistors (igbt) Q1 to Q6 to invert into a preset three-phase ac power, and output the ac power to the motor.
When the control unit only transmits power to the outside according to the state of the access unit acquired by the detection unit, the control unit controls the relay switch of the switch assembly to be opened and closed, the relay switch is opened and closed through the control unit, and the BUCK circuit is formed by opening one part of PMOS (P-channel metal oxide semiconductor) tubes of the branches in the bidirectional BUCK-boost circuit and opening and closing the other part of PMOS tubes, as shown in figures 2 and 6, the BUCK circuit can step down the direct-current voltage of the power battery to a set direct-current power supply voltage value and output the direct-current power supply voltage value through the accessed direct-current output port. Or as shown in fig. 7, after the BUCK circuit configured as described above can step down the dc voltage of the power battery to a set dc power supply voltage value, the control unit inverts the full-bridge circuit formed by controlling the insulated gate bipolar transistors (igbt) Q1 to Q6 to a preset three-phase ac, for example, after the dc voltage of the power battery is stepped down to a dc power supply voltage value of 400V, the control unit inverts the full-bridge circuit formed by controlling the insulated gate bipolar transistors (igbt) Q1 to Q6 to a preset three-phase ac, and then the inverted full-bridge circuit is output to an external device through an accessed ac output port for use.
In one embodiment of the present invention, when the access unit is a dc charging power supply, controlling a state of a switch assembly, and charging a power battery after the access dc power supply voltage is raised to a set dc power supply voltage value by forming a BOOST circuit based on opening and closing of the switch assembly includes: and respectively opening part of the switching device and closing the other part of the switching device, opening part of the metal oxide semiconductor field effect transistor of the bidirectional buck-BOOST circuit, forming a BOOST circuit by controlling the opening and closing of the other part of the metal oxide semiconductor field effect transistor, and charging the power battery after the connected direct current power supply is raised to the direct current power supply with the set voltage value. Specifically, as shown in fig. 2, the control unit controls the relay switches K1 to K3 to be opened, and controls the relay switches K4 and K5 to be closed, so that the PMOS transistor Q9 is opened, and controls the PMOS transistors Q7, Q8 and Q10 to be opened and closed, so that the above-mentioned fig. 2 is converted into a BOOST circuit shown in fig. 3 under the control of the control unit, and the BOOST circuit BOOSTs the dc power supply voltage connected from the outside to the set dc power supply voltage value, and then charges the power battery. For example, the BOOST circuit may BOOST the externally connected dc power supply voltage to a set dc power supply voltage value and then charge the power battery.
In one embodiment of the present invention, the step of forming a BOOST circuit to BOOST the connected dc power supply voltage to a set dc power supply voltage value to charge the power battery further includes: and when the accessed direct current power supply voltage is increased to a set direct current power supply voltage value, the power battery is charged, and meanwhile, a power switch in a control component for converting electric energy and kinetic energy is turned off, so that the connected motor end is powered off. Specifically, as shown in fig. 2 and 3, the control unit turns off the PMOS transistor Q9 by controlling, and turns on and off the PMOS transistors Q7, Q8 and Q10, so as to charge the power battery after the connected dc power supply voltage is raised to the set dc power supply voltage value, and simultaneously, control the power switch inside the control unit for converting electric energy and kinetic energy to be in an off state, so that the insulated gate bipolar transistors (I GBT) Q1 to Q6 are in an off state, to prevent the motor controller circuit from being in an on state, to enable the motor terminal to be in a dangerous electrified state, and to enable the connected motor terminal to be powered off.
In one embodiment of the present invention, when the access unit is an ac charging power supply, controlling a state of a switch assembly, and charging a power battery after the access ac power supply voltage is raised to a set dc power supply voltage value by configuring a bridgeless PFC circuit and a BOOST circuit based on opening and closing of the switch assembly includes: and respectively opening part of the switching device and closing the other part of the switching device, inputting the connected alternating current power supply into a filter, connecting the filter with a bridge arm of a motor controller to form a bridgeless PFC circuit, converting the alternating current power supply into a direct current power supply with a set voltage value by controlling the opening and closing of a power switch in a control part for converting electric energy and kinetic energy, disconnecting part of the metal oxide semiconductor field effect transistors in the bidirectional buck-BOOST circuit, and charging a power battery after the direct current power supply voltage with the set voltage value is boosted to a preset voltage by controlling a BOOST circuit formed by the opening and closing of the other part of the metal oxide semiconductor field effect transistors in the bidirectional buck-BOOST circuit. Specifically, when the access unit is an alternating current charging power supply, the control unit controls the relay switches K1, K4 and K5 to be opened, so that the relay switches K2 and K3 are closed, and the external accessed alternating current power supply is input from the access end through the L pole and the N pole. The winding L3 is disconnected with a bridge arm in the motor controller circuit and is connected to one side of an accessed alternating current power supply, the winding L1 is connected with the winding L2 in parallel and then is connected with the winding L3 in series, a bridge arm formed by insulated gate bipolar transistors (I GBT) Q1 and Q2, Q5 and Q6, Q1 and Q3, Q4 and Q6, Q2 and Q3 and Q4 and Q5 in the motor controller circuit forms a bridgeless PFC circuit, the control unit is used for controlling the opening and closing of the insulated gate bipolar transistors (I GBT) Q1 to Q6 to convert 220V alternating current which is accessed from outside into 400V direct current, then the control unit is used for disconnecting a PMOS tube Q9, and the opening and closing of the PMOS tubes Q7, Q8 and Q10 are controlled to form a BOOST circuit, and the BOOST circuit is used for boosting 400V direct current voltage to a set direct current power supply voltage value to charge a power battery after the BOOST circuit is formed as shown in figure 4.
In one embodiment of the present invention, the control unit controls the on/off of the switch assembly according to the state of the access unit acquired by the detection unit as the vehicle driving state, and the voltage output by the power battery is reduced to a set dc power supply voltage value by forming the BUCK circuit, and the output after being inverted into a preset ac power by the full bridge circuit includes: the control unit is used for respectively opening part of the switching devices and closing the other part of the switching devices according to the state of the access unit acquired by the detection unit as a vehicle driving state, opening part of the metal oxide semiconductor field effect transistors in the bidirectional BUCK-boost circuit, forming a BUCK circuit by controlling the opening and closing of the other part of the metal oxide semiconductor field effect transistors in the bidirectional BUCK-boost circuit, reducing the voltage of the power battery to the direct current power supply voltage with a set voltage value, inverting the direct current power supply voltage into a preset alternating current power supply through the motor controller circuit, and outputting the alternating current power supply to the motor. Specifically, when the control unit is only in the vehicle driving state according to the access unit state acquired by the detection unit as shown in fig. 2, the partial switching device is opened and the other partial switching device is closed, respectively, as shown in fig. 5, by closing the relay switch K1, the relay switches K2 to K5 are opened. And switching off part of metal oxide semiconductor field effect transistors in the bidirectional BUCK-boost circuit, and forming a BUCK circuit by controlling the switching on and switching off of the other part of metal oxide semiconductor field effect transistors in the bidirectional BUCK-boost circuit. For example, the PMOS transistor Q9 in the bidirectional BUCK-boost circuit is turned off by the control unit, the BUCK circuit is formed by controlling the opening and closing of the other part of PMOS transistors Q7, Q8 and Q10 in the bidirectional BUCK-boost circuit, the BUCK circuit is used for reducing the voltage of the power battery to the dc power supply voltage with 400V voltage value, and the full-bridge inverter circuit formed by the insulated gate bipolar transistors (I GBT) Q1 to Q6 in the motor controller circuit is used for inverting the dc power supply voltage with 400V voltage value into the preset ac power supply and outputting the ac power supply voltage to the motor.
When the control unit is in an external power transmission state according to the state of the access unit acquired by the detection unit, the partial switching device is opened and the other partial switching device is closed respectively, partial metal oxide semiconductor field effect transistors in the bidirectional BUCK-boost circuit are opened, the BUCK circuit is formed by controlling the opening and closing of the other partial metal oxide semiconductor field effect transistors in the bidirectional BUCK-boost circuit, the voltage of the power battery is reduced to a direct current power supply with a set voltage value, and the direct current power supply is output after being inverted into alternating current with a preset voltage value through a full-bridge circuit formed by the insulated gate bipolar transistors. Specifically, as shown in fig. 2, when the control unit is in an external power transmission state according to the state of the access unit acquired by the detection unit, the control unit controls the switch state of the relay of the switch assembly to be opened or closed. For example, the relay switches K1, K4 and K5 may be opened, the relay switches K2 and K3 may be closed, and the PMOS transistor Q9 in the bi-directional BUCK-boost circuit may be opened, as shown in fig. 7, so that the voltage output by the power battery may be reduced to a 400V dc power voltage value by the BUCK circuit, and the 400V dc power is inverted into a preset three-phase ac power by the full-bridge circuit formed by insulated gate bipolar transistors (igbt) Q1 to Q6 and then output to an external device.
In an embodiment of the present invention, the inverting the full-bridge circuit formed by the insulated gate bipolar transistors into the alternating current with the preset voltage value and then outputting the alternating current to the outside further includes: the alternating current with the preset voltage value is filtered by the filter and then is output to the outside. Specifically, when the control unit is in the state of transmitting power to the outside according to the state of the access unit acquired by the detection unit, the control unit controls the switch of the relay of the switch assembly to be turned on or off, as shown in fig. 7. The relay switches K1, K4 and K5 are opened through the control unit, the relay switches K2 and K3 are closed, the PMOS tube Q9 in the bidirectional BUCK-boost circuit is opened, the BUCK circuit shown in the figure 7 is formed, the voltage output by the power battery is reduced to 400V direct current power supply voltage value, the 400V direct current power supply is inverted into preset three-phase alternating current through a full-bridge circuit formed by insulated gate bipolar transistors (I GBT), and then is input into the filter (EMI), and the filter (EMI) also inhibits the interference of the relay switch K1 and the charging circuit on an external access alternating current power supply and inhibits the influence of high-frequency interference in the alternating current power supply inverted by the full-bridge circuit on external power connection equipment. Or when the control unit controls the switch state of the relay of the switch assembly to be switched on or off according to the state of the access unit acquired by the detection unit, as shown in fig. 4, the filter (EMI) also suppresses the interference of the externally accessed ac power supply on the ac charging circuit, and the filter suppresses the influence of the high-frequency interference in the ac power supply inverted by the full-bridge circuit on the external power receiving equipment.
In the embodiment of the invention, as shown in fig. 8, the integrated equipment of the bidirectional vehicle-mounted charger and the motor controller comprises a detection unit and a control unit; the detection unit is connected with the control unit and the access unit and is used for executing detection of the access unit based on the acquired instruction and acquiring the state of the access unit; the control unit is connected with the access unit and is used for controlling the state of the switch assembly according to the state of the access unit acquired by the detection unit and enabling the access unit to charge the power battery or enabling the power battery to supply power to the access unit based on the opening and closing of the switch assembly; the switch assembly comprises a switch device and a bidirectional buck-boost circuit. Specifically, the detection unit and the control unit are both connected with the bidirectional vehicle-mounted charger and the motor controller integrated device, that is, are respectively connected with the motor controller circuit, the bidirectional buck-boost circuit and the relay switch device included in the switch assembly, and the integrated device is referred to the description of the control method of the bidirectional vehicle-mounted charger and the motor controller integrated device, and is not repeated herein.
In one embodiment of the present invention, as shown in fig. 8, the integrated device further includes: a motor and a motor controller circuit. The detection unit is respectively connected with the motor, the motor controller circuit and the switch component and is used for detecting parameters of the motor, current on and off states and the like, and parameters of the motor controller circuit and the switch component, and the open and closed electric connection states of the branches of the motor controller circuit and the switch component. The control unit is respectively connected with the motor, the motor controller circuit and the switch component and is used for controlling the starting and stopping of the motor and controlling the opening and closing electric connection states of the branch circuit by the motor controller circuit and the switch component. The motor controller circuit is connected in series with the bidirectional buck-boost circuit, and a bridge arm formed by insulated gate bipolar transistors (I GBT) Q1 to Q6 connected in parallel on the motor controller circuit is respectively bridged with windings L1, L2 and L3 on the motor; the connected and output alternating-current end is arranged between the motor and the motor controller circuit, and is provided with a filter; the direct current end of access and output set up in between motor controller circuit and the two-way step-up and step-down circuit, and with motor controller circuit with the anodal branch road and the negative pole branch road electricity on the two-way step-up and step-down circuit respectively are connected. The power battery is connected with the bidirectional buck-boost circuit and the motor controller circuit in parallel respectively. Specifically, the detection unit, the control unit, the motor controller circuit, the switch assembly including the switch device and the bidirectional buck-boost circuit, and the method for specifically operating the integrated device are included in the integrated device of the bidirectional vehicle-mounted charger and the motor controller, and the description of the control method of the integrated device of the bidirectional vehicle-mounted charger and the motor controller is omitted herein.
The present invention is not limited to the above-mentioned embodiments, but is intended to be limited to the following embodiments, and any modifications, equivalent changes and variations in the above-mentioned embodiments can be made by those skilled in the art without departing from the scope of the present invention.

Claims (9)

1. The control method of the integrated equipment of the bidirectional vehicle-mounted charger and the motor controller is characterized by comprising the following steps of:
the detection unit is used for executing detection of the access unit based on the acquired instruction and acquiring the state of the access unit;
The control unit controls the state of the switch assembly according to the state of the access unit or the access unit acquired by the detection unit, and enables the access unit to charge the power battery or enables the power battery to supply power to the access unit based on the opening and closing of the switch assembly;
The switch assembly comprises a switch device and a bidirectional buck-boost circuit;
The control unit controls the state of the switch assembly according to the state of the access unit or the access unit acquired by the detection unit, and based on the opening and closing of the switch assembly, the step of enabling the access unit to charge the power battery or enabling the power battery to supply power to the access unit comprises the following steps:
The control unit controls the state of the switch assembly according to the condition that the access unit acquired by the detection unit is a direct current charging power supply, and charges the power battery after the voltage of the accessed direct current power supply is increased to a set direct current power supply voltage value by forming a BOOST circuit based on the opening and closing of the switch assembly; or (b)
The control unit controls the state of the switch assembly according to the condition that the access unit acquired by the detection unit is an alternating current charging power supply, and charges the power battery after the voltage of the accessed alternating current power supply is increased to a set direct current power supply voltage value by forming a bridgeless PFC circuit and a BOOST circuit based on the opening and closing of the switch assembly; or (b)
The control unit controls the switch assembly to be opened or closed according to the state of the access unit acquired by the detection unit as a vehicle driving state or an external power transmission state, the voltage output by the power battery is reduced to a set direct current power supply voltage value through the BUCK circuit, and the voltage is inverted into a preset alternating current through the full-bridge circuit and then output.
2. The control method according to claim 1, wherein the detecting unit performs detection of the access unit based on the acquired instruction, and acquiring the state of the access unit includes:
The detection unit acquires an instruction of accessing to charging, performs detection of a power parameter of an accessed power supply, and acquires a type, voltage and current value of the accessed power supply; or (b)
The detection unit acquires an instruction for driving the vehicle, performs detection on motor parameters and a motor circuit of the vehicle, and acquires motor rated parameters and a state of the motor circuit of the vehicle; or (b)
The detection unit acquires an instruction for outputting electric energy to the outside, and outputs alternating current or direct current with preset voltage to the external connection end.
3. The control method according to claim 1, wherein when the access unit is a dc charging power supply, controlling a state of a switch assembly, and charging a power battery by forming a BOOST circuit to raise the voltage of the accessed dc power supply to a set dc power supply voltage value based on the opening and closing of the switch assembly, comprises:
And respectively opening part of the switching device and closing the other part of the switching device, opening part of the metal oxide semiconductor field effect transistor of the bidirectional buck-BOOST circuit, forming a BOOST circuit by controlling the opening and closing of the other part of the metal oxide semiconductor field effect transistor, and charging the power battery after the connected direct current power supply is raised to the direct current power supply with the set voltage value.
4. The control method according to claim 3, wherein the step of configuring the BOOST circuit to BOOST the dc power supply voltage to the set dc power supply voltage value to charge the power battery further comprises:
And when the accessed direct current power supply voltage is increased to a set direct current power supply voltage value, the power battery is charged, and meanwhile, a power switch in a control component for converting electric energy and kinetic energy is turned off, so that the connected motor end is powered off.
5. The control method according to claim 1, wherein when the access unit is an ac charging power supply, controlling a state of a switch assembly, and charging a power battery by forming a bridgeless PFC circuit and a BOOST circuit to raise the voltage of the accessed ac power supply to a set dc power supply voltage value based on opening and closing of the switch assembly, comprises:
And respectively opening part of the switching device and closing the other part of the switching device, inputting the connected alternating current power supply into a filter, connecting the filter with a bridge arm of a motor controller to form a bridgeless PFC circuit, converting the alternating current power supply into a direct current power supply with a set voltage value by controlling the opening and closing of a power switch in a control part for converting electric energy and kinetic energy, disconnecting part of the metal oxide semiconductor field effect transistors in the bidirectional buck-BOOST circuit, and charging a power battery after the direct current power supply voltage with the set voltage value is boosted to a preset voltage by controlling a BOOST circuit formed by the opening and closing of the other part of the metal oxide semiconductor field effect transistors in the bidirectional buck-BOOST circuit.
6. The control method according to claim 1, wherein the control unit controls the on/off of the state of the switch assembly according to the state of the access unit obtained by the detection unit being the vehicle driving state, and the voltage outputted from the power battery is reduced to a set dc power supply voltage value by constituting the BUCK circuit, and is inverted to a preset ac power by the full bridge circuit, and then outputted comprises:
the control unit is used for respectively opening part of the switching devices and closing the other part of the switching devices according to the state of the access unit acquired by the detection unit as a vehicle driving state, opening part of the metal oxide semiconductor field effect transistors in the bidirectional BUCK-boost circuit, forming a BUCK circuit by controlling the opening and closing of the other part of the metal oxide semiconductor field effect transistors in the bidirectional BUCK-boost circuit, reducing the voltage of the power battery to the direct current power supply voltage with a set voltage value, inverting the direct current power supply voltage into a preset alternating current power supply through the motor controller circuit, and outputting the alternating current power supply voltage to the motor; or when the state of the access unit acquired by the detection unit is an external power transmission state, the control unit respectively opens part of the switching device and closes the other part of the switching device, opens part of the metal oxide semiconductor field effect transistors in the bidirectional BUCK-boost circuit, forms a BUCK circuit by controlling the opening and closing of the other part of the metal oxide semiconductor field effect transistors in the bidirectional BUCK-boost circuit, reduces the voltage of the power battery to a direct current power supply with a set voltage value, and then inverts the direct current power supply into alternating current with a preset voltage value through a full-bridge circuit formed by the insulated gate bipolar transistors and outputs the alternating current.
7. The control method according to claim 6, wherein the inverting the full-bridge circuit composed of the insulated gate bipolar transistors into the alternating current with the preset voltage value and then outputting the alternating current to the outside further comprises:
the alternating current with the preset voltage value is filtered by the filter and then is output to the outside.
8. The integrated equipment of the bidirectional vehicle-mounted charger and the motor controller, which is applied to the control method as claimed in claim 1, wherein the equipment comprises a detection unit and a control unit;
the detection unit is connected with the control unit and the access unit and is used for executing detection of the access unit based on the acquired instruction and acquiring the state of the access unit;
The control unit is connected with the access unit and is used for controlling the state of the switch assembly according to the state of the access unit acquired by the detection unit and enabling the access unit to charge the power battery or enabling the power battery to supply power to the access unit based on the opening and closing of the switch assembly;
The switch assembly comprises a switch device and a bidirectional buck-boost circuit.
9. The integrated device of claim 8, wherein the integrated device further comprises: a motor, motor controller circuit;
The detection unit is respectively connected with the motor, the motor controller circuit and the switch component;
the control unit is respectively connected with the motor, the motor controller circuit and the switch component;
The motor controller circuit is connected with the bidirectional buck-boost circuit in series, and an insulated gate bipolar transistor connected in parallel on the motor controller circuit is bridged with the winding of the motor;
the alternating-current end is arranged between the motor and the motor controller circuit, and the alternating-current end is provided with a filter;
The direct-current end is arranged between the motor controller circuit and the bidirectional buck-boost circuit;
the power battery is respectively connected with the bidirectional buck-boost circuit and the motor controller circuit in parallel.
CN202210826301.4A 2022-07-13 2022-07-13 Control method and equipment for bidirectional vehicle-mounted charger and motor controller integrated equipment Active CN115071459B (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105438003A (en) * 2016-01-11 2016-03-30 北京航空航天大学 Integrated structure of vehicle-mounted charger and motor controller of electric automobile
CN106452279A (en) * 2016-09-21 2017-02-22 渤海大学 Electric vehicle driving motor controller with charging function and control method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105438003A (en) * 2016-01-11 2016-03-30 北京航空航天大学 Integrated structure of vehicle-mounted charger and motor controller of electric automobile
CN106452279A (en) * 2016-09-21 2017-02-22 渤海大学 Electric vehicle driving motor controller with charging function and control method thereof

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