CN107820467B - Vehicle-mounted charger and vehicle-mounted charging system - Google Patents
Vehicle-mounted charger and vehicle-mounted charging system Download PDFInfo
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- CN107820467B CN107820467B CN201780001888.2A CN201780001888A CN107820467B CN 107820467 B CN107820467 B CN 107820467B CN 201780001888 A CN201780001888 A CN 201780001888A CN 107820467 B CN107820467 B CN 107820467B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION 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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION 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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/20—Methods 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION 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
- B60L2210/00—Converter types
- B60L2210/10—DC to DC converters
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-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 utility model provides a vehicle-mounted machine and vehicle-mounted charging system charge, vehicle-mounted machine that charges includes: the system comprises three power control modules connected in parallel, a high-voltage output module and a low-voltage side master control module; the three parallel power control modules are used for connecting an external charging interface, detecting voltage data of the external charging interface and sending the voltage data to the low-voltage side master control module; the high-voltage output module is used for monitoring the output data of the power control module and sending the output data to the low-voltage side master control module; the low-voltage side control module is used for receiving voltage data and outputting data, and is used for sending the voltage data and the outputting data to the vehicle control unit. The purpose that the vehicle-mounted charger is compatible with single-phase and three-phase input can be achieved, and the requirement that the vehicle-mounted charger is compatible with different types of alternating-current charging piles is effectively met.
Description
Technical Field
The invention relates to the field of automotive electronics, in particular to a vehicle-mounted charger and a vehicle-mounted charging system.
Background
At present, new energy vehicles are becoming the development direction of the future automobile industry, and after more than ten years of global development, people gradually reach consensus on the electric energy supply mode of pure electric vehicles: the mainstream mode is valley power charging, and the full charge of the pure electric vehicle is required within 6-8 hours of slow charging time in the valley power period of eight hours late at night.
In the prior art, the vehicle-mounted charger mostly adopts single-phase 220V input, the maximum output current of the single-phase alternating current charging pile is 32A, so the output power grade of the vehicle-mounted charger is 3.3KW or 6.6KW, at present, 6-meter minibus adopts the vehicle-mounted charger technology, but the endurance mileage of some minibus reaches more than 200 kilometers, if the batteries of the electric minibus are fully charged, 70-80 ℃ electricity can be charged, when the 6.6KW single-phase vehicle-mounted charger is adopted, the charging time can reach about 10-12 hours, the requirement of full charge of 7-8 hours required by customers cannot be met, and therefore, the reduction of the charging time becomes the problem to be solved urgently.
Disclosure of Invention
The embodiment of the invention discloses a vehicle-mounted charger and a vehicle-mounted charging system, which can enable the vehicle-mounted charger to be compatible with single-phase and three-phase power input, meet the alternating current input conditions of different occasions, and meet the requirement of being compatible with different types of alternating current charging piles.
The invention discloses a vehicle-mounted charger in a first aspect, which comprises three power control modules connected in parallel, a high-voltage output module and a low-voltage side master control module, wherein the three power control modules connected in parallel are respectively connected with the low-voltage side master control module and the high-voltage output module;
the three parallel power control modules are used for connecting an external charging interface, detecting voltage data of the external charging interface and sending the voltage data to the low-voltage side master control module, and the voltage data comprise input voltage and first output voltage;
the high-voltage output side module is used for monitoring output data of the power control module and sending the output data to the low-voltage side master control module, and the output data comprises second output voltage, output current and voltage of a power battery of the whole vehicle;
the low-voltage side control module is used for receiving the voltage data and the output data and sending the voltage data and the output data to the vehicle control unit.
With reference to the first aspect of the present invention, in a first possible implementation manner of the first aspect of the present invention, the power control module includes: the Power Factor Correction circuit comprises an electromagnetic Compatibility (EMC) circuit, a pre-charging control circuit, a rectifying circuit, a Power Factor Correction circuit, a direct current/direct current (DC/DC) Power conversion primary side control circuit and a first control singlechip, wherein the EMC circuit is connected with the Power Factor Correction circuit;
the EMC circuit, the pre-charging control circuit and the rectifying circuit are connected in series and then connected with a first end of the power factor correction circuit, a second end of the power factor correction circuit is connected with a first end of a primary side control circuit of the DC/DC power conversion, and the first control single chip microcomputer is respectively connected with each circuit in the control module;
the EMC circuit is used for solving the problem of electromagnetic interference in the charger;
the pre-charging control circuit is used for protecting elements of the rectifying circuit from being damaged due to short-circuit current of the capacitor at the moment of power-on;
the rectifying circuit is used for rectifying alternating current into direct current;
the power factor correction circuit is used for reducing the influence of current harmonics on a power grid;
the primary side control circuit of the DC/DC power conversion is used for converting primary side energy to a secondary side through transformer isolation;
the first control single chip microcomputer is used for detecting a first output voltage of the power factor correction circuit and an input voltage of the power control module and sending the detected first output voltage and the detected input voltage to the low-voltage side master control module.
With reference to the first aspect of the present invention, in a second possible implementation manner of the first aspect of the present invention, the high voltage output module includes: three secondary side rectifying circuits, a high-voltage output detection circuit, an anti-reverse connection control circuit and a second control single chip microcomputer;
the first ends of the three secondary rectifying circuits are respectively connected with the second ends of the primary side control circuits of the DC/DC power conversion in the three power control modules; the second ends of the three secondary side rectifying circuits are connected in parallel and then are connected with the high-voltage output detection circuit and the reverse connection prevention control circuit, and the second control single chip microcomputer is connected with the reverse connection prevention control circuit and the high-voltage output detection circuit;
the secondary rectifying circuit is used for outputting direct-current voltage which is obtained by rectifying alternating voltage converted by the transformer after the input of the primary control circuit for DC/DC power conversion;
the high-voltage output detection circuit is used for detecting the voltage output by the secondary side rectifying circuit;
the reverse connection prevention control circuit is used for preventing a supplied power supply and is connected with the power supply polarity of the whole vehicle power battery in an opposite way;
the second control single chip microcomputer is used for detecting second output voltage and output current output by the high-voltage output side circuit, and voltage of the whole vehicle power battery, and sending the detected high-voltage output side data to the low-voltage side master control module.
With reference to the first aspect of the present invention, in a third possible implementation manner of the first aspect of the present invention, the low-voltage-side general control module includes: a master control circuit;
the master control circuit is used for receiving the voltage data input by the three parallel power control modules and the output data output by the high-voltage output side module, and sending the voltage data and the output data to the vehicle control unit.
With reference to the first aspect or the first possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect of the present invention, the charging mode of the vehicle-mounted charger is a three-phase five-wire alternating current charging mode, a live wire of the first power control module is used for connecting a first live wire interface of an external charging interface, a live wire of the second power control module is used for connecting a second live wire interface of the external charging interface, a live wire of the third power control module is used for connecting a third live wire interface of the external charging interface, the zero line of the first power control module, the zero line of the second power control module and the zero line of the third power control module are used for connecting with a zero line interface of the external charging interface, the safety ground wire of the first power control module, the safety ground wire of the second power control module and the safety ground wire of the third power control module are used for grounding.
With reference to the fourth possible implementation manner of the first aspect of the present invention, in a fifth possible implementation manner of the first aspect of the present invention, the charging manner of the vehicle-mounted charger is two-phase voltage input, and any two of the live wires of the first power control module, the second power control module, and the third power control module are used to connect to the first live wire interface and the second live wire interface of the external charging interface, respectively.
With reference to the first aspect of the present invention or the first possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect of the present invention, a charging manner of the vehicle-mounted charger is a single-phase voltage input manner, any one of the live wire of the first power control module, the live wire of the second power control module, and the live wire of the third power control module is used to connect a live wire interface of the external charging interface, the zero line of the selected power control module is used to connect a zero line interface of the external charging interface, and the safety ground wire of the selected power control module is used to ground.
With reference to the sixth possible implementation manner of the first aspect of the present invention, in a seventh possible implementation manner of the first aspect of the present invention, the charging manner of the vehicle-mounted charger is a single-phase voltage input manner, and the live wire of the first power control module, the live wire of the second power control module, and the live wire of the third power control module are short-circuited and connected to the unidirectional alternating current of the external charging interface.
A second aspect of the present invention discloses a vehicle-mounted charging system, including: the vehicle-mounted charger according to any one of the possibilities of the first aspect of the invention, the vehicle controller and the vehicle power battery, wherein the vehicle-mounted charger is connected with the vehicle controller and the vehicle power battery;
the vehicle control unit is used for receiving voltage data and current data sent by the vehicle-mounted charger;
and the whole vehicle power battery is used for receiving the power supply electric quantity output by the vehicle-mounted charger.
With reference to the second aspect of the present invention, in a first possible implementation manner of the second aspect of the present invention, the vehicle controller is connected to a low-voltage side master control module in the vehicle-mounted charger, and the vehicle power battery is connected to a high-voltage output module in the vehicle-mounted charger.
In the embodiment of the invention, three power control modules connected in parallel are used for connecting an external charging interface, detecting voltage data of the external charging interface and sending the voltage data to the low-voltage side master control module; the high-voltage output side module is used for monitoring output data of the power control module and sending the output data to the low-voltage side master control module; the low-voltage side control module is used for receiving the voltage data and the output data and sending the voltage data and the output data to the vehicle control unit. The embodiment of the invention has the advantages that the three power control modules connected in parallel are arranged in the vehicle-mounted charger, so that the vehicle-mounted charger can be compatible with single-phase and three-phase input modes, and the requirement that the vehicle-mounted charger is compatible with different types of alternating current charging piles is effectively met.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a vehicle-mounted charger disclosed by the embodiment of the invention;
fig. 2 is a schematic structural diagram of a vehicle-mounted charging system disclosed in the embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," "third," and "fourth," etc. in the description and claims of the invention and in the accompanying drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a vehicle-mounted charger according to a first embodiment of the present invention, and as shown in fig. 1, the vehicle-mounted charger described in this embodiment may include three power control modules connected in parallel, a high-voltage output module, and a low-voltage side general control module, where:
the three parallel power control modules are respectively connected with the low-voltage side master control module and the high-voltage output module, the first end of the low-voltage side master control module is connected with the high-voltage output module, the second end of the low-voltage side master control module is connected with a whole vehicle controller, and the high-voltage output module is connected with a whole vehicle power battery;
the three parallel power control modules are used for connecting an external charging interface, detecting voltage data of the external charging interface and sending the voltage data to the low-voltage side master control module, and the voltage data comprise input voltage and first output voltage;
the power of each power control module is 3.3KW or 6.6KW, and the total full-load output power of the vehicle-mounted charger is 10KW or 20 KW;
the input voltage is input voltage of an external charging interface, and the first output voltage is output voltage of each power control module.
Specifically, as shown in fig. 1, the three parallel power control modules include a live wire 1 of a first power control module, a live wire 2 of a second power control module, a live wire 3 of a third power control module, a zero line and a ground wire;
when the charging mode of the vehicle-mounted charger is a three-phase five-wire alternating current charging mode, a live wire of a first power control module is used for being connected with a first live wire interface of an external charging interface, a live wire of a second power control module is used for being connected with a second live wire interface of the external charging interface, a live wire of a third power control module is used for being connected with a third live wire interface of the external charging interface, a zero line of the first power control module, a zero line of the second power control module and a zero line of the third power control module are used for being connected with a zero line interface of the external charging interface, and a safety ground wire of the first power control module, a safety ground wire of the second power control module and a safety ground wire of the third power control module are used for being grounded.
When the charging mode of the vehicle-mounted charger is two-phase voltage input, any two live wires of the first power control module, the second power control module and the third power control module are respectively connected with a first live wire interface and a second live wire interface of the external charging interface, and at the moment, the vehicle-mounted charger outputs 2/3 according to full-load power.
When the charging mode of the vehicle-mounted charger is a single-phase voltage input mode, any one of the live wire of the first power control module, the live wire of the second power control module and the live wire of the third power control module is used for being connected with a live wire interface of the external charging interface, a zero line of the power control module is used for being connected with a zero line interface of the external charging interface, a safety ground wire of the power control module is used for being grounded, the three parallel power control modules are used for single-phase voltage input, and a vehicle-mounted charging system can output power according to 1/3 with full load power.
And when the charging mode of the vehicle-mounted charger is a single-phase voltage input mode, the live wire of the first power control module, the live wire of the second power control module and the live wire of the third power control module are in short circuit and are connected with the one-way alternating current of the external charging interface.
Under the condition that the single-phase alternating current end has enough power supply capacity, the vehicle-mounted charger can output the same power as a three-phase full load under the condition of single-phase input, but the current flowing through a single zero line is 3 times of the current flowing through three live wires under the condition, so the zero line needs to be increased, if the zero line is a 10KW charger, the zero line needs to meet the requirement of passing through 48A current for a long time, and if the zero line is a 20KW charger, the zero line needs to meet the requirement of passing through 96A current for a long time.
The high-voltage output side module is used for monitoring output data of the power control module and sending the output data to the low-voltage side master control module, and the output data comprises second output voltage, output current and voltage of a power battery of the whole vehicle;
the second output voltage is the output voltage of the high-voltage output side module.
The low-voltage side control module is used for receiving the voltage data and the output data and sending the voltage data and the output data to the vehicle control unit;
the low-voltage side master control module is further used for receiving a control instruction of the vehicle control unit and controlling the startup and shutdown time sequence of the vehicle-mounted charging system.
In the embodiment of the invention, three power control modules connected in parallel are used for connecting an external charging interface, detecting voltage data of the external charging interface and sending the voltage data to the low-voltage side master control module; the high-voltage output side module is used for monitoring output data of the power control module and sending the output data to the low-voltage side master control module; the low-voltage side control module is used for receiving the voltage data and the output data and sending the voltage data and the output data to the vehicle control unit. The embodiment of the invention has the advantages that the three power control modules connected in parallel are arranged in the vehicle-mounted charger, so that the vehicle-mounted charger can be compatible with single-phase and three-phase input modes, and the requirement that the vehicle-mounted charger is compatible with different types of alternating current charging piles is effectively met.
Optionally, in some embodiments of the present invention, the power control module includes: the power factor correction circuit comprises an electromagnetic compatibility EMC circuit, a pre-charging control circuit, a rectifying circuit, a power factor correction circuit, a primary side control circuit for direct current/direct current DC/DC power conversion and a first control single chip microcomputer;
the EMC circuit, the pre-charging control circuit and the rectifying circuit are connected in series and then connected with a first end of the power factor correction circuit, a second end of the power factor correction circuit is connected with a first end of a primary side control circuit of the DC/DC power conversion, and the first control single chip microcomputer is respectively connected with each circuit in the control module;
the EMC circuit is used for solving the problem of electromagnetic interference in the charger;
the pre-charging control circuit is used for protecting elements of the rectifying circuit from being damaged due to short-circuit current of the capacitor at the moment of power-on;
the rectifying circuit is used for rectifying alternating current into direct current;
the power factor correction circuit is used for reducing the influence of current harmonics on a power grid;
the primary side control circuit of the DC/DC power conversion is used for converting primary side energy to a secondary side through transformer isolation;
the first control single chip microcomputer is used for detecting a first output voltage of the power factor correction circuit and an input voltage of the power control module and sending the detected first output voltage and the detected input voltage to the low-voltage side master control module.
Optionally, in some embodiments of the present invention, the high voltage output module includes: three secondary side rectifying circuits, a high-voltage output detection circuit, an anti-reverse connection control circuit and a second control single chip microcomputer;
the first ends of the three secondary rectifying circuits are respectively connected with the second ends of the primary side control circuits of the DC/DC power conversion in the three power control modules; the second ends of the three secondary side rectifying circuits are connected in parallel and then are connected with the high-voltage output detection circuit and the reverse connection prevention control circuit, and the second control single chip microcomputer is connected with the reverse connection prevention control circuit and the high-voltage output detection circuit;
the secondary rectifying circuit is used for outputting direct-current voltage which is obtained by rectifying alternating voltage converted by the transformer after the input of the primary control circuit for DC/DC power conversion;
the high-voltage output detection circuit is used for detecting the voltage output by the secondary side rectifying circuit;
the reverse connection prevention control circuit is used for preventing a supplied power supply and is connected with the power supply polarity of the whole vehicle power battery in an opposite way;
the second control single chip microcomputer is used for detecting second output voltage and output current output by the high-voltage output side circuit, and voltage of the whole vehicle power battery, and sending the detected high-voltage output side data to the low-voltage side master control module.
Optionally, in some embodiments of the present invention, the low-voltage side general control module includes: a master control circuit;
the master control circuit is used for receiving the voltage data input by the three parallel power control modules and the output data output by the high-voltage output side module, and sending the voltage data and the output data to the vehicle control unit.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a vehicle-mounted charging system according to a second embodiment of the present invention, and as shown in fig. 2, the vehicle-mounted charging system described in this embodiment may include a vehicle-mounted charger according to the first embodiment of the present invention, a vehicle controller, and a vehicle power battery, where:
the vehicle-mounted charger is connected with the vehicle control unit and the vehicle power battery;
the vehicle control unit is used for receiving voltage data and current data sent by the vehicle-mounted charger;
and the whole vehicle power battery is used for receiving the power supply electric quantity output by the vehicle-mounted charger.
Specifically, on-vehicle machine that charges includes: the system comprises three power control modules connected in parallel, a high-voltage output module and a low-voltage side master control module, wherein the three power control modules connected in parallel are respectively connected with the low-voltage side master control module and the high-voltage output module;
the three parallel power control modules are used for connecting an external charging interface, detecting voltage data of the external charging interface and sending the voltage data to the low-voltage side master control module, and the voltage data comprise input voltage and first output voltage;
the high-voltage output side module is used for monitoring output data of the power control module and sending the output data to the low-voltage side master control module, and the output data comprises second output voltage, output current and voltage of a power battery of the whole vehicle;
the low-voltage side control module is used for receiving the voltage data and the output data and sending the voltage data and the output data to the vehicle control unit.
Wherein the power control module comprises: electromagnetic compatibility EMC circuit, pre-charge control circuit, rectifier circuit, power factor correction circuit, the former limit control circuit of DC/DC power conversion to and first control singlechip, wherein:
the EMC circuit, the pre-charging control circuit and the rectifying circuit are connected in series and then connected with a first end of the power factor correction circuit, a second end of the power factor correction circuit is connected with a first end of a primary side control circuit of the DC/DC power conversion, and the first control single chip microcomputer is respectively connected with each circuit in the control module;
the EMC circuit is used for solving the problem of electromagnetic interference in the charger;
the pre-charging control circuit is used for protecting elements of the rectifying circuit from being damaged due to short-circuit current of the capacitor at the moment of power-on;
the rectifying circuit is used for rectifying alternating current into direct current;
the power factor correction circuit is used for reducing the influence of current harmonics on a power grid;
the primary side control circuit of the DC/DC power conversion is used for converting primary side energy to a secondary side through transformer isolation;
the first control single chip microcomputer is used for detecting a first output voltage of the power factor correction circuit and an input voltage of the power control module and sending the detected first output voltage and the detected input voltage to the low-voltage side master control module;
and the first control single chip microcomputer sends the detected first output voltage and the detected input voltage to a low-voltage side master control circuit through a digital isolation chip.
The high-voltage output module comprises: three secondary side rectifier circuit, a high-voltage output detection circuitry, one prevent reverse-connection control circuit to and second control singlechip, wherein:
the first ends of the three secondary rectifying circuits are respectively connected with the second ends of the primary side control circuits of the DC/DC power conversion in the three power control modules; the second ends of the three secondary side rectifying circuits are connected in parallel and then are connected with the high-voltage output detection circuit and the reverse connection prevention control circuit, and the second control single chip microcomputer is connected with the reverse connection prevention control circuit and the high-voltage output detection circuit;
the secondary rectifying circuit is used for outputting direct-current voltage which is obtained by rectifying alternating voltage converted by the transformer after the input of the primary control circuit for DC/DC power conversion;
the high-voltage output detection circuit is used for detecting the voltage output by the secondary side rectifying circuit;
the reverse connection prevention control circuit is used for preventing a supplied power supply and is connected with the power supply polarity of the whole vehicle power battery in an opposite way;
the second control single chip microcomputer is used for detecting second output voltage, output current and the voltage of the power battery of the whole vehicle output side output by the high-voltage output side circuit, and sending the detected high-voltage output side data to the low-voltage side master control module;
and the second control singlechip sends the detected second output voltage and the input voltage to a low-voltage side master control circuit through a digital isolation chip.
The total control module of low pressure side includes: a master control circuit;
the master control circuit is used for receiving the voltage data input by the three parallel power control modules and the output data output by the high-voltage output side module, and sending the voltage data and the output data to the vehicle control unit.
The connection between the vehicle-mounted charger and the external charging interface can refer to corresponding parts in the embodiment described in fig. 1.
In the embodiment of the invention, three power control modules connected in parallel are used for connecting an external charging interface, detecting voltage data of the external charging interface and sending the voltage data to the low-voltage side master control module; the high-voltage output side module is used for monitoring output data of the power control module and sending the output data to the low-voltage side master control module; the low-voltage side control module is used for receiving the voltage data and the output data and sending the voltage data and the output data to the vehicle control unit. The embodiment of the invention has the advantages that the three power control modules connected in parallel are arranged in the vehicle-mounted charger, so that the vehicle-mounted charger can be compatible with single-phase and three-phase input modes, and the requirement that the vehicle-mounted charger is compatible with different types of alternating current charging piles is effectively met.
The embodiment of the invention also provides a computer storage medium, wherein the computer storage medium can store a program, and the program comprises part or all of functions of the vehicle-mounted charger when being executed.
While the invention has been described in connection with various embodiments, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed invention, from a review of the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus (device), or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein. A computer program stored/distributed on a suitable medium supplied together with or as part of other hardware, may also take other distributed forms, such as via the Internet or other wired or wireless telecommunication systems.
The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (devices) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While the invention has been described in conjunction with specific features and embodiments thereof, it will be evident that various modifications and combinations can be made thereto without departing from the spirit and scope of the invention. Accordingly, the specification and figures are merely exemplary of the invention as defined in the appended claims and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the invention. It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The utility model provides a vehicle-mounted charger which characterized in that includes: the system comprises three power control modules connected in parallel, a high-voltage output module and a low-voltage side master control module, wherein the three power control modules connected in parallel are respectively connected with the low-voltage side master control module and the high-voltage output module;
the three parallel power control modules are used for connecting an external charging interface, detecting voltage data of the external charging interface and sending the voltage data to the low-voltage side master control module, wherein the voltage data comprise input voltage and first output voltage, if the output power of the vehicle-mounted charger is 10KW, the zero line diameter of each power control module in the three parallel power control modules can continuously pass 48A current, and if the output power of the vehicle-mounted charger is 20KW, the zero line diameter of each power control module in the three parallel power control modules can continuously pass 96A current;
the high-voltage output module is used for monitoring output data of the power control module and sending the output data to the low-voltage side master control module, and the output data comprises second output voltage, output current and voltage of a power battery of the whole vehicle;
and the low-voltage side master control module is used for receiving the voltage data and the output data and sending the voltage data and the output data to the whole vehicle controller.
2. The vehicle-mounted charger according to claim 1, wherein the power control module comprises: the power factor correction circuit comprises an electromagnetic compatibility EMC circuit, a pre-charging control circuit, a rectifying circuit, a power factor correction circuit, a primary side control circuit for direct current/direct current DC/DC power conversion and a first control single chip microcomputer;
the EMC circuit, the pre-charging control circuit and the rectifying circuit are connected in series and then connected with a first end of the power factor correction circuit, a second end of the power factor correction circuit is connected with a first end of a primary side control circuit of the DC/DC power conversion, and the first control single chip microcomputer is respectively connected with each circuit in the control module;
the EMC circuit is used for solving the problem of electromagnetic interference in the charger;
the pre-charging control circuit is used for protecting elements of the rectifying circuit from being damaged due to short-circuit current of the capacitor at the moment of power-on;
the rectifying circuit is used for rectifying alternating current into direct current;
the power factor correction circuit is used for reducing the influence of current harmonics on a power grid;
the primary side control circuit of the DC/DC power conversion is used for converting primary side energy to a secondary side through transformer isolation;
the first control single chip microcomputer is used for detecting a first output voltage of the power factor correction circuit and an input voltage of the power control module and sending the detected first output voltage and the detected input voltage to the low-voltage side master control module.
3. The vehicle-mounted charger according to claim 1, characterized in that said high voltage output module comprises: three secondary side rectifying circuits, a high-voltage output detection circuit, an anti-reverse connection control circuit and a second control single chip microcomputer;
the first ends of the three secondary rectifying circuits are respectively connected with the second ends of the primary side control circuits of the DC/DC power conversion in the three power control modules; the second ends of the three secondary side rectifying circuits are connected in parallel and then are connected with the high-voltage output detection circuit and the reverse connection prevention control circuit, and the second control single chip microcomputer is connected with the reverse connection prevention control circuit and the high-voltage output detection circuit;
the secondary rectifying circuit is used for outputting direct-current voltage which is obtained by rectifying alternating voltage converted by the transformer after the input of the primary control circuit for DC/DC power conversion;
the high-voltage output detection circuit is used for detecting the voltage output by the secondary side rectifying circuit;
the reverse connection prevention control circuit is used for preventing a supplied power supply and is connected with the power supply polarity of the whole vehicle power battery in an opposite way;
the second control single chip microcomputer is used for detecting second output voltage and output current output by the high-voltage output side circuit, and voltage of the whole vehicle power battery, and sending the detected high-voltage output side data to the low-voltage side master control module.
4. The vehicle-mounted charger according to claim 1, wherein the low-voltage side master control module comprises: a master control circuit;
the master control circuit is used for receiving the voltage data input by the three parallel power control modules and the output data output by the high-voltage output module, and sending the voltage data and the output data to the vehicle control unit.
5. The vehicle-mounted charger according to claim 1 or 2, wherein the charging mode of the vehicle-mounted charger is a three-phase five-wire system alternating current charging mode, a live wire of the first power control module is used for connecting a first live wire interface of an external charging interface, a live wire of the second power control module is used for connecting a second live wire interface of the external charging interface, a live wire of the third power control module is used for connecting a third live wire interface of the external charging interface, a zero line of the first power control module, a zero line of the second power control module and a zero line of the third power control module are used for connecting a zero line interface of the external charging interface, and a safety ground wire of the first power control module, a safety ground wire of the second power control module and a safety ground wire of the third power control module are used for grounding.
6. The vehicle-mounted charger according to claim 5, wherein the charging mode of the vehicle-mounted charger is a two-phase voltage input, and any two of the live wire of the first power control module, the live wire of the second power control module, and the live wire of the third power control module are used for being respectively connected with the first live wire interface and the second live wire interface of the external charging interface.
7. The vehicle-mounted charger according to claim 1 or 2, wherein the charging mode of the vehicle-mounted charger is a single-phase voltage input mode, any one of the live wire of the first power control module, the live wire of the second power control module and the live wire of the third power control module is selected to be used as a live wire interface connected with the external charging interface, the zero line of the selected power control module is used for being connected with a zero line interface of the external charging interface, and the safety ground wire of the selected power control module is used for being grounded.
8. The vehicle-mounted charger according to claim 7, wherein the charging mode of the vehicle-mounted charger is a single-phase voltage input mode, and the live wire of the first power control module, the live wire of the second power control module and the live wire of the third power control module are short-circuited and connected with the one-way alternating current of the external charging interface.
9. An in-vehicle charging system, characterized by comprising: the vehicle-mounted charger according to any one of claims 1 to 8, and a vehicle control unit and a vehicle power battery, wherein the vehicle-mounted charger is connected with the vehicle control unit and the vehicle power battery;
the vehicle control unit is used for receiving voltage data and current data sent by the vehicle-mounted charger;
and the whole vehicle power battery is used for receiving the power supply electric quantity output by the vehicle-mounted charger.
10. The vehicle-mounted charging system according to claim 9, wherein the vehicle control unit is connected to a low-voltage side master control module in the vehicle-mounted charger, and the vehicle power battery is connected to a high-voltage output module in the vehicle-mounted charger.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2017/073150 WO2018145282A1 (en) | 2017-02-09 | 2017-02-09 | On-board charger and on-board charging system |
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| Publication Number | Publication Date |
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| CN107820467A CN107820467A (en) | 2018-03-20 |
| CN107820467B true CN107820467B (en) | 2020-10-02 |
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| CN201780001888.2A Active CN107820467B (en) | 2017-02-09 | 2017-02-09 | Vehicle-mounted charger and vehicle-mounted charging system |
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| WO (1) | WO2018145282A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108820105A (en) * | 2018-07-24 | 2018-11-16 | 北京优位智停科技有限公司 | On-board charging system and Portable vehicle-mounted electric vehicle |
| CN109159685A (en) * | 2018-09-28 | 2019-01-08 | 北京新能源汽车股份有限公司 | A kind of charge control system, control method and electric car |
| WO2020062248A1 (en) * | 2018-09-30 | 2020-04-02 | 深圳欣锐科技股份有限公司 | Vehicle charging system and vehicle |
| CN111224447A (en) * | 2020-02-27 | 2020-06-02 | 深圳威迈斯新能源股份有限公司 | On-vehicle machine that charges of compatible alternating-current charging stake and direct-current charging stake |
| CN113602134A (en) * | 2021-08-10 | 2021-11-05 | 华人运通(江苏)技术有限公司 | Charging pile identification method and device, terminal equipment and storage medium |
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| CN107820467A (en) | 2018-03-20 |
| WO2018145282A1 (en) | 2018-08-16 |
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