CN113765176A - Charging control system, method and device based on BOOST controller - Google Patents

Charging control system, method and device based on BOOST controller Download PDF

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Publication number
CN113765176A
CN113765176A CN202110853303.8A CN202110853303A CN113765176A CN 113765176 A CN113765176 A CN 113765176A CN 202110853303 A CN202110853303 A CN 202110853303A CN 113765176 A CN113765176 A CN 113765176A
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China
Prior art keywords
pile
voltage
charging
module
control system
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Pending
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CN202110853303.8A
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Chinese (zh)
Inventor
潘志强
张明
黄敏
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Lantu Automobile Technology Co Ltd
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Lantu Automobile Technology Co Ltd
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Priority to CN202110853303.8A priority Critical patent/CN113765176A/en
Publication of CN113765176A publication Critical patent/CN113765176A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
    • 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
    • B60L53/60—Monitoring or controlling charging stations
    • 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
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
    • H02M3/1582—Buck-boost converters
    • 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
    • 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
    • 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
    • Y02T90/12—Electric charging stations

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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)

Abstract

The invention discloses a charging control system, a method and a device based on a BOOST controller, wherein the charging control system comprises: the charging system comprises a voltage reduction module, a voltage boosting module, a bypass switch group and a control module, wherein the voltage reduction module, the voltage boosting module and the bypass switch group are connected in parallel, the input end after parallel connection is used for connecting a charging pile, and the output end after parallel connection is used for connecting a battery pack; the control module is used for controlling whether the voltage reduction module and the voltage boosting module work or not and controlling whether the bypass switch group is closed or not. The invention can be well compatible with the charging of the national standard pile and the super quick-charging pile, and ensures that the existing charging pile can be fully used.

Description

Charging control system, method and device based on BOOST controller
Technical Field
The invention relates to the technical field of electric automobiles, in particular to a charging control system, method and device based on a BOOST controller.
Background
At present, in order to solve charging anxiety of electric automobile users, a high-power quick charging function is generally required to be equipped for the electric automobiles, and one of the realization directions of the high-power quick charging is to improve a vehicle voltage platform. Charging voltage is improved by improving a vehicle voltage platform, so that charging power is improved. However, the super rapid-charging pile of the high-voltage platform in the current market is still in a pilot state and is not commercialized in a large scale. In a foreseeable period of time in the future, the situation that the national standard direct current piles and the super rapid-charging piles coexist exists in the market, and the situation that the two direct current piles coexist can be maintained for a long time according to the reserve of the national standard piles in the current market.
However, the charging interfaces between the current national standard direct current charging pile and the super quick charging pile are mutually independent and cannot be compatible, so that the existing charging pile is difficult to be fully used, and the operation cost is difficult to reduce.
Disclosure of Invention
In view of the above problems, the invention provides a charging control system, method and device based on a BOOST controller, which can be well compatible with charging of a national standard pile and a super rapid charging pile, and ensure that the existing charging pile can be fully used.
In a first aspect, the present application provides the following technical solutions through an embodiment:
a charge control system based on a BOOST controller comprises: the charging system comprises a voltage reduction module, a voltage boosting module, a bypass switch group and a control module, wherein the voltage reduction module, the voltage boosting module and the bypass switch group are connected in parallel, the input end of the parallel connection is used for connecting a charging pile, and the output end of the parallel connection is used for connecting a battery pack; the control module is used for controlling whether the voltage reduction module and the voltage boosting module work or not and controlling whether the bypass switch group is closed or not.
Optionally, the method further includes: and the slow starting module is connected to one side, close to the input end, of the boosting module.
In a second aspect, based on the same inventive concept, the present application provides the following technical solutions through an embodiment:
a charge control method based on a BOOST controller, applied to the charge control system based on the BOOST controller in any one of the first aspect, the control method includes:
acquiring an electric pile detection signal of a preset detection point after the electric pile is connected; determining the pile type of the charging pile according to the electric pile detection signal; and controlling the control module to operate the voltage reduction module, the voltage boosting module and the bypass switch group according to the pile type so that the charging control system outputs charging voltage to the battery pack.
Optionally, the determining the pile type of the charging pile according to the electric pile detection signal includes:
if the voltage of the electric pile detection signal is 8V, determining that the pile type is a national standard pile; and if the voltage of the electric pile detection signal is 6V, determining that the pile type is the super quick-charging pile.
Optionally, when the pile type is a national standard pile, controlling the control module to operate the voltage reduction module, the voltage boost module, and the bypass switch group according to the pile type, so that the charging control system outputs a charging voltage to the battery pack includes:
controlling a battery management system to close a battery pack relay; the control module is controlled to disconnect the bypass switch group and forbid the boost module from starting; controlling the control module to start the voltage reduction module to work; the voltage reduction module reduces the voltage of the battery pack and then outputs the reduced voltage to trigger the national standard pile to output pile voltage; and after the pile voltage output by the national standard pile is detected, controlling the voltage reduction module to stop working, and starting the voltage boosting module to boost the pile voltage so that the charging control system outputs charging voltage to the battery pack.
Optionally, when the pile type is a super rapid pile, controlling the control module to operate the voltage reduction module, the voltage boost module, and the bypass switch group according to the pile type, so that the charging control system outputs a charging voltage to the battery pack includes:
controlling a battery management system to close a battery pack relay; the control module is controlled to close the bypass switch group, and the boosting module and the voltage reducing module are forbidden to start; and requesting the output voltage of the super quick charging pile to enable the charging control system to output the charging voltage to the battery pack.
In a third aspect, based on the same inventive concept, the present application provides the following technical solutions through an embodiment:
a BOOST controller-based charging control device applied to the BOOST controller-based charging control system according to any one of the first aspect, the control device comprising:
the acquisition unit is used for acquiring an electric pile detection signal of a preset detection point after the electric pile is connected with the charging pile; the determining unit is used for determining the pile type of the charging pile according to the electric pile detection signal; and the control unit is used for controlling the control module to operate the voltage reduction module, the voltage boosting module and the bypass switch group according to the pile type so as to enable the charging control system to output charging voltage to the battery pack.
Optionally, the determining unit is specifically configured to:
if the voltage of the electric pile detection signal is 8V, determining that the pile type is a national standard pile; and if the voltage of the electric pile detection signal is 6V, determining that the pile type is the super quick-charging pile.
In a fourth aspect, based on the same inventive concept, the present application provides the following technical solutions through an embodiment:
a charge control method based on a BOOST controller, applied to the charge control system based on the BOOST controller in any one of the first aspect, the control method includes:
when the stake type of the stake of charging that charging control system connects is national standard stake: disconnecting the bypass switch group and forbidding the boost module to start; controlling the voltage reduction module to reduce the voltage of the battery pack and then output the reduced voltage so as to trigger the national standard pile to output pile voltage; after the pile voltage output by the national standard pile, controlling the voltage reduction module to stop working, and controlling the voltage boosting module to boost the pile voltage so that the charging control system outputs charging voltage to the battery pack;
when the stake type of the stake of filling of charging control system connection is super when filling the stake soon: and closing the bypass switch group, and forbidding the boosting module and the voltage reducing module to start so that the charging control system outputs charging voltage to the battery pack.
In a fifth aspect, based on the same inventive concept, the present application provides the following technical solutions through an embodiment:
a BOOST controller-based charging control device applied to the BOOST controller-based charging control system according to any one of the first aspect, the control device comprising:
the first charging unit is used for charging the charging pile connected with the charging control system when the pile type of the charging pile is a national standard pile: disconnecting the bypass switch group and forbidding the boost module to start; controlling the voltage reduction module to reduce the voltage of the battery pack and then output the reduced voltage so as to trigger the national standard pile to output pile voltage; after the pile voltage output by the national standard pile, controlling the voltage reduction module to stop working, and controlling the voltage boosting module to boost the pile voltage so that the charging control system outputs charging voltage to the battery pack;
the second charging unit is used for charging the control system when the pile type of the charging pile connected with the charging control system is super quick charging pile: and closing the bypass switch group, and forbidding the boosting module and the voltage reducing module to start so that the charging control system outputs charging voltage to the battery pack.
The charging control system based on the BOOST controller provided in the embodiment of the invention comprises: the charging system comprises a voltage reduction module, a voltage boosting module, a bypass switch group and a control module, wherein the voltage reduction module, the voltage boosting module and the bypass switch group are connected in parallel, the input end after parallel connection is used for connecting a charging pile, and the output end after parallel connection is used for connecting a battery pack; the control module is used for controlling whether the voltage reduction module and the voltage boosting module work or not and controlling whether the bypass switch group is closed or not. When the charging control system works, the type of the electric pile is detected, and whether the electric pile is a national standard pile or a super quick-charging pile is determined; and then the control module is signaled for different pile types so that the control module operates the voltage boosting module, the voltage reducing module and the bypass switch set, so that the corresponding pile types are adapted to charge the vehicle. The compatible country stake that can be fine and super fill the charging of stake soon, guarantee that present electric pile that fills homoenergetic can obtain abundant use.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
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 the drawings without creative efforts. In the drawings:
fig. 1 is a schematic structural diagram illustrating a charge control system based on a BOOST controller according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a charge control method based on a BOOST controller according to another embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating the interaction between the corresponding control module and the vehicle control unit in FIG. 1;
fig. 4 is a schematic structural diagram illustrating a charge control device based on a BOOST controller according to another embodiment of the present invention;
fig. 5 is a flowchart illustrating a charge control method based on a BOOST controller according to another embodiment of the present invention;
fig. 6 shows a schematic structural diagram of a charge control device based on a BOOST controller according to yet another embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Referring to fig. 1, a charging control system 100 based on a BOOST controller according to a first embodiment of the present invention is shown, which can ensure that a vehicle compatible with a national standard post of a high voltage platform is dc charged.
Specifically, the charge control system 100 includes: the control system comprises a voltage reduction module 101, a voltage boosting module 102, a bypass switch group 103 and a control module 104; the voltage reduction module 101, the voltage boost module 102 and the bypass switch group 103 are connected in parallel, the input end after parallel connection is used for connecting the charging pile, and the output end after parallel connection is used for connecting the battery pack 201.
A voltage reduction module 101 for reducing a voltage of the vehicle battery pack 201 to output a lower voltage; the BUCK module 101 may be formed by using an existing BUCK circuit (BUCK circuit). The boost module 102 is used for boosting the voltage of the charging pile to reach the charging voltage required by the vehicle; the BOOST module 102 may be formed by an existing BOOST circuit (BOOST circuit). The bypass switch group 103 includes a first switch and a second switch, and the first switch and the second switch are respectively connected to the circuits corresponding to the positive pole and the negative pole of the charging pile, so as to realize the bypass function of the voltage boosting module 102 and the voltage reducing module 101.
The charging control system 100 in this embodiment may further include a soft start module 105, where the soft start module 105 may be connected to a side of the voltage boost module 102 close to the input end, and when the charging control system 100 is powered on, the circuit of the voltage boost module 102 and the battery pack 201 of the charging control system 100 may be effectively protected.
The parallel output terminals can be connected to the battery pack 201 through a charging interface, and the charging control system 100 can be configured as a modular component in a vehicle. In order to identify super (charging standard in Chaoji, GB/T20234.4) fast-charging piles and national standard piles (namely national standard direct current charging piles), a transfer port can be added. For example, when the interface designed on the vehicle is the interface corresponding to the super fast-charging pile, a transfer interface for transferring the super fast-charging pile to the national standard pile can be correspondingly configured, and the transfer interface is used for being plugged into a charging port of the vehicle when the national standard pile is used for charging. In the present embodiment, the vehicle to be charged is a vehicle of a high voltage platform, which may be a vehicle of a 800V voltage platform; correspondingly, according to different standards, the device can be popularized and applied to other high-voltage platform vehicles.
Because the existing charging piles of new energy vehicles have national standard charging piles and super rapid charging piles, the national standard charging pile in the embodiment is designed into a hardware interface circuit according to the national standard GB/T18487.1, and a communication protocol is designed according to GB/T27930, so that charging interaction between the vehicles and the charging piles is realized; the quick charging interface corresponding to the super quick charging pile is completely redesigned on the structure and the control guidance circuit, and is optimized on the basis of GB/T27930 on the charging protocol.
The control module 104 is configured to control the operating states of the modules and the switch sets in the charging control system 100, and specifically, may control whether the buck module 101 and the boost module 102 operate, and control whether the bypass switch set 103 is closed. Further, when the charging Control system 100 is plugged into a charging pile to charge a battery pack 201 of a Vehicle, the Control module 104 is in communication connection with a Vehicle Control Unit (VCU) of the Vehicle, and the VCU can be in communication connection with a Control Unit in the charging pile. The control module 104 may be an existing control circuit or control chip, such as a Microcontroller Unit (MCU).
When the charge control system 100 based on the BOOST controller in this embodiment is used to charge a vehicle, if the charging pile matched with the charge control system 100 is a super fast charging pile, the control module 104 in the charge control system 100 prohibits both the BOOST module 102 and the buck module 101 from operating, and closes the bypass switch group 103, so that the super fast charging pile charges the battery pack 201 of the vehicle. If the charging pile matched with the charging control system 100 is a national standard pile, the control module 104 may control the voltage reduction module 101 to reduce the voltage of the vehicle battery pack 201 to trigger the output voltage of the national standard pile, and then control the voltage boost module 102 to boost the output voltage of the national standard pile to provide the charging voltage for the vehicle. In order to make the working principle and the beneficial effect of the BOOST controller based charging control system 100 in the present embodiment easier to understand, reference may be continued to the subsequent embodiments of the present specification.
Referring to fig. 2, based on the same inventive concept, in another embodiment of the present invention, a charge control method based on a BOOST controller is further provided, and the method can be applied to the charge control system based on the BOOST controller in the foregoing embodiments. In particular, the method may be implemented by a vehicle control unit, the method may be designed as a computer program stored in a storage medium, and the steps of the method may be implemented by the vehicle control unit when the program is run. Specifically, the control method includes:
step S110: and acquiring an electric pile detection signal of a preset detection point after the electric pile is connected.
In step S110, the electric pile detection signal may be a CC2 signal periodically detected when the charging pile is charged, the CC2 signal is a signal specified in an existing charging standard, and a specific detection method and a detection position thereof may be performed with reference to a related standard.
Step S120: and determining the pile type of the charging pile according to the electric pile detection signal.
In step S120, the corresponding electric pile detection signals are different due to different types of charging piles. Therefore, the pile type of the charging pile can be determined through the size of the electric pile detection signal, and compatibility of different pile types based on the existing standard is achieved. In this embodiment, if the voltage of the electric pile detection signal is 8V, it is determined that the pile type is a national standard pile; and if the voltage of the electric pile detection signal is 6V, determining that the pile type is the super quick-charging pile. The size of the electric pile detection signal matched with different pile types can be adaptively adjusted based on modification or change of the standard.
Step S130: and controlling the control module to operate the voltage reduction module, the voltage boosting module and the bypass switch group according to the pile type so that the charging control system outputs charging voltage to the battery pack.
In step S130, the control method for each module of the charging control system is different for different pile types.
Specifically, when the pile type is a national standard pile, the step S130 includes the following steps:
step S131: controlling a battery management system to close a battery pack relay; and controlling the control module to disconnect the bypass switch group and forbid the boost module from starting.
Step S132: controlling the control module to start the voltage reduction module to work; and the voltage reduction module reduces the voltage of the battery pack and then outputs the reduced voltage to trigger the national standard pile to output the pile voltage.
Through step S131 and step S132, it can be ensured that the national standard pile can be triggered to charge when the national standard pile charges the vehicle of the high-voltage platform, so that the national standard pile outputs voltage. In this embodiment, the control of the vehicle control unit on the control module may be that the vehicle control unit sends a request signal to the control module, and the control module performs corresponding operations based on the request signal, and the specific interaction mode may be based on a protocol without performing adaptive adjustment, which is not limited in this embodiment. The interaction principle can be seen with reference to fig. 3.
The control module can periodically report a state system, a current signal and a voltage signal of the current charging control system in the process of interaction with the vehicle control unit, and the vehicle control unit can make a corresponding emergency response, such as interruption of the charging process and the like, when the signals are abnormal.
Step S133: and after the pile voltage output by the national standard pile is detected, controlling the voltage reduction module to stop working, and starting the voltage boosting module to boost the pile voltage so that the charging control system outputs charging voltage to the battery pack.
In step S133, the boost module is started to boost the pile voltage to ensure that the charging voltage can reach the voltage range allowed by the battery pack, so as to output the charging voltage to the battery pack.
For example:
a user uses a national standard direct current pile and a switching port to charge a vehicle (800V platform). After a user inserts the gun, the vehicle control unit detects a CC2 signal through the control guide circuit. After the CC2 signal confirms that the charging pile is a national standard pile, a Battery Management System (BMS) is controlled to close a relay inside the Battery pack, then a voltage reduction module is controlled to work, the charging control System enters a voltage reduction Mode (BUCK Mode), and 800V voltage of the Battery pack is reduced to 400V voltage to be output. The vehicle control unit controls the control module to disconnect the bypass switch group, namely the K1 relay and the K2 relay. After the voltage reduction module reduces the voltage of the battery pack and outputs the voltage, the national standard pile starts to output after detecting the 400V voltage of the vehicle end. At this moment, the vehicle control unit can control the output voltage of the charging pile end to be slightly higher than the output voltage of the voltage reduction module. The vehicle control unit judges whether the charging control system is in a voltage reduction mode currently or not according to the state signal reported by the control module; after the vehicle control unit detects the output voltage of the national standard pile, the control module starts the BOOST module, and the charging control system enters a BOOST Mode. The BOOST circuit outputs power, and the control module stops the voltage reduction module. Therefore, the voltage of the pile end 400V can be boosted to 800V to charge the power battery through the control of the national standard pile, the boosting module and the voltage reduction module.
When the pile type is the super rapid-charging pile, the execution process of step S130 is as follows:
firstly, controlling a battery management system to close a battery pack relay; the control module is controlled to close the bypass switch group, and the boosting module and the voltage reducing module are forbidden to start; then, the output voltage of the super rapid charging pile is requested, so that the charging control system outputs the charging voltage to the battery pack. Through the control process, the super quick-charging pile can charge the vehicle through the passage where the bypass switch group is located.
For example:
and the user uses the super quick-charging pile for charging. After a user inserts a gun, the vehicle controller detects CC2 through the control guide circuit, and controls the charging control system to enter a Bypass Mode (Bypass Mode) after confirming that the charging pile is a super quick charging pile. The control module disables the buck and boost modules and closes relays K1 and K2 of the bypass switch bank. And after the vehicle control unit determines that the charging control system is in a bypass mode through the state signal reported by the boosting module, the vehicle control unit controls the super quick-charging pile to output power and charge the vehicle battery pack.
It should be noted that, in this embodiment, the vehicle control unit, the control module, and the battery management system may perform communication interaction through a CAN (Controller Area Network) protocol.
Therefore, according to the charge control method based on the BOOST controller provided by the embodiment, the type of the electric pile is detected to determine whether the electric pile is a national standard pile or a super rapid-charging pile; and then the control module is signaled for different pile types so that the control module operates the voltage boosting module, the voltage reducing module and the bypass switch set, so that the corresponding pile types are adapted to charge the vehicle. So that the fine compatible country stake of aforementioned control system that charges and the super charging of stake soon, guarantee that current stake homoenergetic of charging can obtain abundant use.
Referring to fig. 4, based on the same inventive concept, another embodiment of the present invention further provides a BOOST controller-based charging control apparatus 300, which is applied to the BOOST controller-based charging control system in the foregoing embodiment, where the control apparatus 300 includes:
the acquisition unit 301 is configured to acquire an electric pile detection signal of a preset detection point after connection of a charging pile; a determining unit 302, configured to determine a pile type of the charging pile according to the electric pile detection signal; a control unit 303, configured to control the control module to operate the voltage reducing module, the voltage increasing module, and the bypass switch group according to the pile type, so that the charging control system outputs a charging voltage to the battery pack.
As an optional implementation manner, the determining unit 302 is specifically configured to:
if the voltage of the electric pile detection signal is 8V, determining that the pile type is a national standard pile; and if the voltage of the electric pile detection signal is 6V, determining that the pile type is the super quick-charging pile.
As an optional implementation manner, when the pile type is a national pile, the control unit 303 is further specifically configured to:
controlling a battery management system to close a battery pack relay; the control module is controlled to disconnect the bypass switch group and forbid the boost module from starting; controlling the control module to start the voltage reduction module to work; the voltage reduction module reduces the voltage of the battery pack and then outputs the reduced voltage to trigger the national standard pile to output pile voltage; and after the pile voltage output by the national standard pile is detected, controlling the voltage reduction module to stop working, and starting the voltage boosting module to boost the pile voltage so that the charging control system outputs charging voltage to the battery pack.
As an optional implementation manner, when the pile type is a super rapid-charging pile, the control unit 303 is further specifically configured to:
controlling a battery management system to close a battery pack relay; the control module is controlled to close the bypass switch group, and the boosting module and the voltage reducing module are forbidden to start; and requesting the output voltage of the super quick charging pile to enable the charging control system to output the charging voltage to the battery pack.
It should be noted that, the implementation and technical effects of the charge control device 300 based on the BOOST controller according to the embodiment of the present invention are the same as those of the foregoing method and system embodiments, and for brief description, reference may be made to corresponding contents in the foregoing method embodiments for the absence of any reference in the device embodiments.
Referring to fig. 5, based on the same inventive concept, another embodiment of the present invention further provides a charge control method based on a BOOST controller, which is applied to the charge control system based on the BOOST controller in the foregoing embodiment. Specifically, the method may be executed by a control module in a BOOST controller-based charging control system, and the method may be designed as a computer program to be stored in a storage medium, and when the program runs, the control module in the charging control system may execute the steps of the method. Specifically, the control method includes:
when the stake type of the stake of charging that charging control system connects is national standard stake:
step S211: disconnecting the bypass switch group and forbidding the boost module to start;
step S212: controlling the voltage reduction module to reduce the voltage of the battery pack and then output the reduced voltage so as to trigger the national standard pile to output pile voltage;
step S213: and after the pile voltage output by the national standard pile, controlling the voltage reduction module to stop working, and controlling the voltage boosting module to boost the pile voltage so that the charging control system outputs charging voltage to the battery pack.
When the stake type of the stake of filling of charging control system connection is super when filling the stake soon:
step S221: and closing the bypass switch group, and forbidding the boosting module and the voltage reducing module to start so that the charging control system outputs charging voltage to the battery pack.
It should be noted that, the implementation and technical effects of the charge control method based on the BOOST controller provided in the embodiment of the present invention are the same as those of the foregoing method and system embodiment, and for brief description, reference may be made to corresponding contents in the foregoing method embodiment for the absence of any reference in the embodiment of the apparatus.
Referring to fig. 6, based on the same inventive concept, in another embodiment of the present invention, a BOOST controller-based charging control apparatus 400 is further provided, which is applied to the BOOST controller-based charging control system in any one of the foregoing embodiments, where the control apparatus 400 includes:
a first charging unit 401, configured to, when the pile type of the charging pile connected by the charging control system is a national standard pile:
disconnecting the bypass switch group and forbidding the boost module to start; controlling the voltage reduction module to reduce the voltage of the battery pack and then output the reduced voltage so as to trigger the national standard pile to output pile voltage; after the pile voltage output by the national standard pile, controlling the voltage reduction module to stop working, and controlling the voltage boosting module to boost the pile voltage so that the charging control system outputs charging voltage to the battery pack;
a second charging unit 402, configured to, when the pile type of the charging pile connected to the charging control system is a super rapid charging pile:
and closing the bypass switch group, and forbidding the boosting module and the voltage reducing module to start so that the charging control system outputs charging voltage to the battery pack.
It should be noted that, the implementation and technical effects of the charge control device 400 based on the BOOST controller according to the embodiment of the present invention are the same as those of the foregoing method and system embodiments, and for the sake of brief description, reference may be made to corresponding contents in the foregoing method embodiments for parts that are not mentioned in the device embodiments.
The term "and/or" appearing herein is merely one type of associative relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship; the word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, 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.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), 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 preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall 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. A charge control system based on a BOOST controller, comprising: the charging system comprises a voltage reduction module, a voltage boosting module, a bypass switch group and a control module, wherein the voltage reduction module, the voltage boosting module and the bypass switch group are connected in parallel, the input end of the parallel connection is used for connecting a charging pile, and the output end of the parallel connection is used for connecting a battery pack; the control module is used for controlling whether the voltage reduction module and the voltage boosting module work or not and controlling whether the bypass switch group is closed or not.
2. The BOOST controller-based charge control system according to claim 1, further comprising: and the slow starting module is connected to one side, close to the input end, of the boosting module.
3. A charge control method based on a BOOST controller is applied to the charge control system based on the BOOST controller in any one of claims 1-2, and the control method comprises the following steps:
acquiring an electric pile detection signal of a preset detection point after the electric pile is connected;
determining the pile type of the charging pile according to the electric pile detection signal;
and controlling the control module to operate the voltage reduction module, the voltage boosting module and the bypass switch group according to the pile type so that the charging control system outputs charging voltage to the battery pack.
4. The method of claim 3, wherein determining the pile type of the charging pile from the electric pile detection signal comprises:
if the voltage of the electric pile detection signal is 8V, determining that the pile type is a national standard pile;
and if the voltage of the electric pile detection signal is 6V, determining that the pile type is the super quick-charging pile.
5. The method of claim 3, wherein when the pile type is a national pile, the controlling the control module to operate the buck module, the boost module, and the bypass switch bank according to the pile type to cause the charging control system to output a charging voltage to the battery pack comprises:
controlling a battery management system to close a battery pack relay; the control module is controlled to disconnect the bypass switch group and forbid the boost module from starting;
controlling the control module to start the voltage reduction module to work; the voltage reduction module reduces the voltage of the battery pack and then outputs the reduced voltage to trigger the national standard pile to output pile voltage;
and after the pile voltage output by the national standard pile is detected, controlling the voltage reduction module to stop working, and starting the voltage boosting module to boost the pile voltage so that the charging control system outputs charging voltage to the battery pack.
6. The method of claim 3, wherein when the pile type is a super rapid charging pile, the controlling the control module to operate the voltage reduction module, the voltage boost module and the bypass switch set according to the pile type to enable the charging control system to output a charging voltage to the battery pack comprises:
controlling a battery management system to close a battery pack relay; the control module is controlled to close the bypass switch group, and the boosting module and the voltage reducing module are forbidden to start;
and requesting the output voltage of the super quick charging pile to enable the charging control system to output the charging voltage to the battery pack.
7. A BOOST controller-based charge control device, applied to the BOOST controller-based charge control system of any one of claims 1-2, the control device comprising:
the acquisition unit is used for acquiring an electric pile detection signal of a preset detection point after the electric pile is connected with the charging pile;
the determining unit is used for determining the pile type of the charging pile according to the electric pile detection signal;
and the control unit is used for controlling the control module to operate the voltage reduction module, the voltage boosting module and the bypass switch group according to the pile type so as to enable the charging control system to output charging voltage to the battery pack.
8. The apparatus according to claim 7, wherein the determining unit is specifically configured to:
if the voltage of the electric pile detection signal is 8V, determining that the pile type is a national standard pile;
and if the voltage of the electric pile detection signal is 6V, determining that the pile type is the super quick-charging pile.
9. A charge control method based on a BOOST controller is applied to the charge control system based on the BOOST controller in any one of claims 1-2, and the control method comprises the following steps:
when the stake type of the stake of charging that charging control system connects is national standard stake:
disconnecting the bypass switch group and forbidding the boost module to start;
controlling the voltage reduction module to reduce the voltage of the battery pack and then output the reduced voltage so as to trigger the national standard pile to output pile voltage;
after the pile voltage output by the national standard pile, controlling the voltage reduction module to stop working, and controlling the voltage boosting module to boost the pile voltage so that the charging control system outputs charging voltage to the battery pack;
when the stake type of the stake of filling of charging control system connection is super when filling the stake soon:
and closing the bypass switch group, and forbidding the boosting module and the voltage reducing module to start so that the charging control system outputs charging voltage to the battery pack.
10. A BOOST controller-based charge control device, applied to the BOOST controller-based charge control system of any one of claims 1-2, the control device comprising:
the first charging unit is used for charging the charging pile connected with the charging control system when the pile type of the charging pile is a national standard pile:
disconnecting the bypass switch group and forbidding the boost module to start;
controlling the voltage reduction module to reduce the voltage of the battery pack and then output the reduced voltage so as to trigger the national standard pile to output pile voltage;
after the pile voltage output by the national standard pile, controlling the voltage reduction module to stop working, and controlling the voltage boosting module to boost the pile voltage so that the charging control system outputs charging voltage to the battery pack;
the second charging unit is used for charging the control system when the pile type of the charging pile connected with the charging control system is super quick charging pile:
and closing the bypass switch group, and forbidding the boosting module and the voltage reducing module to start so that the charging control system outputs charging voltage to the battery pack.
CN202110853303.8A 2021-07-27 2021-07-27 Charging control system, method and device based on BOOST controller Pending CN113765176A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117360310A (en) * 2023-12-07 2024-01-09 成都壹为新能源汽车有限公司 Vehicle charging control method and system using extended-range power battery

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107284259A (en) * 2017-06-16 2017-10-24 武汉科华动力科技有限公司 DC charging system and its charging method for low-voltage battery system
CN108767918A (en) * 2018-05-24 2018-11-06 奇瑞汽车股份有限公司 Battery charge-discharge circuit and electric vehicle
CN211929842U (en) * 2020-05-22 2020-11-13 北汽（常州）汽车有限公司 Double-quick-charging system installed on electric vehicle
CN112848959A (en) * 2021-03-25 2021-05-28 广州小鹏汽车科技有限公司 Charging control method, charging control device and electric automobile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107284259A (en) * 2017-06-16 2017-10-24 武汉科华动力科技有限公司 DC charging system and its charging method for low-voltage battery system
CN108767918A (en) * 2018-05-24 2018-11-06 奇瑞汽车股份有限公司 Battery charge-discharge circuit and electric vehicle
CN211929842U (en) * 2020-05-22 2020-11-13 北汽（常州）汽车有限公司 Double-quick-charging system installed on electric vehicle
CN112848959A (en) * 2021-03-25 2021-05-28 广州小鹏汽车科技有限公司 Charging control method, charging control device and electric automobile

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117360310A (en) * 2023-12-07 2024-01-09 成都壹为新能源汽车有限公司 Vehicle charging control method and system using extended-range power battery
CN117360310B (en) * 2023-12-07 2024-02-09 成都壹为新能源汽车有限公司 Vehicle charging control method and system using extended-range power battery

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