CN114771301A - Converging charging device and charging pile energy scheduling method - Google Patents
Converging charging device and charging pile energy scheduling method Download PDFInfo
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- CN114771301A CN114771301A CN202210385570.1A CN202210385570A CN114771301A CN 114771301 A CN114771301 A CN 114771301A CN 202210385570 A CN202210385570 A CN 202210385570A CN 114771301 A CN114771301 A CN 114771301A
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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
- B60L53/10—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 the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
- B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging 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
- B60L53/60—Monitoring or controlling charging stations
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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
- B60L53/60—Monitoring or controlling charging stations
- B60L53/66—Data transfer between charging stations and vehicles
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application provides a charging device and a charging pile energy scheduling method converge, and the charging device comprises: a charging pile hub and a first charging gun; the charging pile concentrator is provided with at least two vehicle sockets for connecting charging guns of corresponding charging piles; the charging pile concentrator is used for collecting charging current received by each vehicle socket and charging the electric automobile through the first charging gun; furthermore, when the electric automobile is provided with only one direct current charging port and has a high-power charging requirement, the energy of a plurality of low-power charging piles can be collected to meet the charging requirement of the electric automobile.
Description
Technical Field
The application relates to the technical field of power electronics, in particular to a converging charging device and a charging pile energy scheduling method.
Background
At present, the output power of a common integrated direct-current charging pile is usually 30kW, 60kW or 120kW and the like, but the integrated direct-current charging pile can only output a certain fixed power, and especially, independent charging piles or old charging stations in some communities often only have low-power output capacity.
And general electric automobile all has only a direct current mouth that charges, and when it had high-power demand of charging, the above-mentioned low-power of fixed output fills electric pile often can not satisfy its demand of charging.
Disclosure of Invention
In view of this, the present application provides a converging charging device and a charging pile energy scheduling method, so as to integrate the energy of a plurality of low-power charging piles, and meet the high-power charging requirement of an electric vehicle.
In order to achieve the above purpose, the present application provides the following technical solutions:
the present application provides in a first aspect a charging device converges, including: a charging pile hub and a first charging gun; wherein, the first and the second end of the pipe are connected with each other,
the charging pile concentrator is provided with at least two vehicle sockets for connecting charging guns of corresponding charging piles;
the charging pile concentrator is used for collecting charging current received by each vehicle socket and charging the electric automobile through the first charging gun.
Optionally, the charging pile hub includes: and connecting various interfaces on each vehicle socket to the collecting branches of the corresponding interfaces of the first charging gun respectively, and connecting detection resistors between the connection confirmation interfaces and the protection line interfaces on each vehicle socket respectively.
Optionally, still include in the electric pile concentrator: and the line concentration controller is used for realizing communication between the line concentration controller and each charging pile and the electric automobile, selecting any one charging pile to perform preparation work in a charging process on the electric automobile, and scheduling the energy of each charging pile.
Optionally, still include in the electric pile concentrator: and the parameter detection module is used for detecting the temperature of the charging pile concentrator and the collected voltage and current of the charging pile concentrator and transmitting the temperature and the collected voltage and current to the line concentration controller.
Optionally, the method further includes: and the heat dissipation equipment is used for dissipating heat of the charging pile concentrator.
Optionally, each of the collection branches respectively includes:
the charging power supply converging branch is used for converging charging current received by a charging power supply interface on each vehicle socket to a charging power supply interface of the first charging gun;
the communication branch is used for realizing communication connection between a communication interface on each vehicle socket and a communication interface of the first charging gun;
the auxiliary power supply branch is used for transmitting an auxiliary power supply received by an auxiliary power supply interface on any vehicle socket to an auxiliary power supply interface of the first charging gun;
the connection confirmation branch is used for realizing the connection between a connection confirmation interface on any vehicle socket and a connection confirmation interface of the first charging gun;
and the grounding branch is used for realizing the grounding connection of the protection line interface on each vehicle socket and the protection line interface of the first charging gun.
Optionally, the resistance value of one of the detection resistors is a preset resistance value and is different from the resistance values of the other detection resistors; the vehicle socket connected with the vehicle socket realizes transmission of corresponding signals between the charging pile and the first charging gun through the auxiliary power supply branch and the connection confirmation branch.
Optionally, each of the collection branches respectively includes:
the charging power supply converging branch is used for converging charging current received by a charging power supply interface on each vehicle socket to a charging power supply interface of the first charging gun;
the first communication branch is used for realizing communication connection between the communication interface on each vehicle socket and the line concentration controller;
the second communication branch is used for realizing communication connection between the line concentration controller and the communication interface of the first charging gun;
the auxiliary power supply branch is used for transmitting auxiliary power supply received by an auxiliary power supply interface on any vehicle socket to an auxiliary power supply interface of the line concentration controller;
the connection confirmation branch is used for realizing the connection between a connection confirmation interface on the line concentration controller and a connection confirmation interface of the first charging gun;
and the grounding branch is used for realizing the grounding connection of the protection line interface on each vehicle socket, the protection line interface of the line concentration controller and the protection line interface of the first charging gun.
Optionally, the first charging gun is: and (3) presetting a standard interface charging gun, or a Chaoji interface charging gun.
The second aspect of the present application further provides a charging pile energy scheduling method, which is applied to the confluence charging device and each charging pile connected to the confluence charging device according to any one of the first aspects, and the charging pile energy scheduling method includes:
the charging guns of the charging piles are respectively inserted into the vehicle sockets of the confluence charging device;
one charging pile outputs an auxiliary power supply to supply power to a battery management system BMS of the electric automobile connected with the confluence charging device;
and each charging pile charges the electric automobile through the confluence charging device according to the vehicle charging request of the BMS.
Optionally, when there is no centralized controller in the converging charging device, after the charging guns of the charging piles are respectively inserted into the vehicle sockets of the converging charging device, the method further includes:
each charging pile respectively detects the resistance value of a detection resistor connected in the confluence charging device, and determines the master-slave relationship through communication according to the corresponding resistance value;
and executing the step of outputting the auxiliary power by the charging pile determined as the main charging pile.
Optionally, when there is no centralized controller in the conflux charging apparatus, each of the charging piles charges the electric vehicle through the conflux charging apparatus according to a vehicle charging request of the BMS, including:
the main charging pile is communicated with the BMS to acquire a vehicle charging request of the BMS;
and the master charging pile schedules the energy of each slave charging pile and is responsible for executing a charging process.
Optionally, when there is a line concentration controller in the charging device that converges, the charging pile that executes the step of outputting the auxiliary power supply is:
the charging pile is firstly inserted into the confluence charging device; alternatively, the first and second electrodes may be,
the resistance of the detection resistor is the charging pile with the preset resistance.
Optionally, when there is a line concentration controller in the confluence charging device, each of the charging piles charges the electric vehicle through the confluence charging device according to a vehicle charging request of the BMS, including:
the line concentration controller acquires the vehicle charging request and selects any one charging pile to execute preparation work in a charging process;
and the hub controller schedules the energy of each charging pile and controls each charging pile to charge the electric automobile.
Optionally, when one of the charging piles outputs the auxiliary power supply, the method further includes:
and the other charging piles wait for a scheduling instruction.
The application provides a charging device converges includes: a charging pile hub and a first charging gun; the charging pile concentrator is provided with at least two vehicle sockets for connecting charging guns of corresponding charging piles; the charging pile concentrator is used for collecting charging current received by each vehicle socket and charging the electric automobile through the first charging gun; furthermore, when the electric automobile is provided with only one direct current charging port and has a high-power charging requirement, the energy of a plurality of low-power charging piles can be collected to meet the charging requirement.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments or the description of the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a bus charging device according to an embodiment of the present disclosure;
fig. 2 and fig. 3 are schematic diagrams illustrating two specific structures of a bus charging device according to an embodiment of the present disclosure;
fig. 4 is a flowchart of a charging pile energy scheduling method according to an embodiment of the present application;
fig. 5 and fig. 6 are two specific flowcharts of the charging pile energy scheduling method according to the embodiment of the application.
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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In this application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
The existing integrated direct-current charging pile can only use a charging module arranged inside the pile and can not use the energy of other charging modules arranged inside the charging pile nearby, and the output power of the existing integrated direct-current charging pile can be fixed, wherein the output power of the existing integrated direct-current charging pile can be 30kW, 60kW or 120kW and the like. When only having the electric automobile of a direct current mouth that charges, meet the electric pile that fills of miniwatt, want to charge with great power inlet wire again, just need use the charging device that converges that this application provided to the energy of a plurality of miniwatt electric piles of set satisfies its high-power demand of charging.
Referring to fig. 1, the bus charging device includes: a charging pile hub 10 and a first charging gun 20; wherein, the first and the second end of the pipe are connected with each other,
the charging pile concentrator 10 is provided with at least two vehicle sockets for connecting charging guns of corresponding charging piles; in fig. 1, two vehicle sockets are taken as an example, the vehicle socket 1 is connected with a charging gun of the charging pile 1, and the vehicle socket 2 is connected with a charging gun of the charging pile 2.
This fill electric pile concentrator 10 is used for collecting the charging current that each vehicle socket received to charge for electric automobile through first rifle 20 that charges.
In practical application, the first charging gun 20 may be a Chaoji interface charging gun; alternatively, the first charging gun 20 may also be a charging gun with a preset standard interface, such as a 250A charging gun defined in the standard GBT 18487; but is not limited thereto and is within the scope of the present application depending on the specific application environment.
The application provides a charging device converges in the aspect of mechanical interface, collects the electric pile energy back that fills of less power through filling electric pile concentrator 10, and similar a mode that charges the HUB concentrator charges with great power again. Furthermore, when the electric automobile is provided with only one direct current charging port and has a high-power charging requirement, the energy of a plurality of low-power charging piles can be collected to meet the charging requirement.
It should be noted that, in the prior art, after the charging gun is inserted into the electric vehicle, the controller in the charging pile will communicate with a BMS (Battery Management System) in the electric vehicle through a communication line in the charging gun to obtain a vehicle charging request and provide corresponding charging power for the vehicle; according to the converging charging device provided by the application, after the charging guns of the plurality of charging piles are inserted into corresponding vehicle sockets, in the aspect of control strategy, communication between each charging pile and the BMS can be realized through an internal controller of the converging charging device, only one charging pile can be selected as a main charging pile for charging at this time through negotiation strategy, the charging pile is responsible for communicating with the electric automobile, communication line interfaces of other charging guns are kept silent, instructions of the main charging pile are heard, and energy is output; depending on the specific application environment, are all within the scope of the present application.
On the basis of the above embodiment, as shown in fig. 2 or fig. 3, the cable in the charging gun of each charging pile has: charging power supply cables (including a positive electrode cable DC + and a negative electrode cable DC-), communication cables (including a positive electrode cable CAN _ H and a negative electrode cable CAN _ L), auxiliary power supply cables (including a positive electrode cable A + and a negative electrode cable A-), a connection confirmation cable CC1, and a protection cable PE. These cables originally can link to each other with the corresponding interface in the electric automobile that the rifle that charges was inserted, and after adding this confluence charging device that this application provided, these cables in the rifle that charges will link to each other with the corresponding interface of corresponding vehicle socket.
In order to realize the connection between these charging guns and the electric vehicle, the charging pile hub 10 includes, in addition to the vehicle socket on the surface, as shown in fig. 2 or 3, inside: the interfaces of the vehicle sockets are respectively connected to the collecting branches of the corresponding interfaces of the first charging gun 20, and the detection resistors (such as R01 or R02 shown in fig. 2 or fig. 3) between the connection confirmation interfaces and the protection line interfaces of the vehicle sockets.
Optionally, as shown in fig. 2, each collecting branch inside the charging pile concentrator 10 is:
and a charging power supply converging branch 101 for converging the charging current received by the charging power supply interface (the interface for connecting the charging power supply cables DC + and DC-in the corresponding charging guns) on each vehicle socket to the charging power supply interface of the first charging gun 20.
And a communication branch 102, configured to implement communication connection between a communication interface (an interface connecting communication cables CAN _ H and CAN _ L in corresponding charging guns) on each vehicle socket and a communication interface of first charging gun 20.
An auxiliary power branch 103, for transmitting the auxiliary power received by the auxiliary power interface (the interface connecting the auxiliary power cables a + and a-in the corresponding charging gun) on any vehicle socket to the auxiliary power interface of the first charging gun 20.
A connection confirmation branch 104 for realizing connection between a connection confirmation interface (an interface for connecting the connection confirmation cable CC1 in the corresponding charging gun) on any vehicle socket and the connection confirmation interface of the first charging gun 20.
And a ground branch 105 for realizing ground connection between a protection line interface (an interface for connecting the protection cable PE in the corresponding charging gun) on each vehicle outlet and the protection line interface of the first charging gun 20.
In the charging pile hub 10 shown in fig. 2, a corresponding controller is not provided, so that it is necessary to make each charging pile connected to the charging pile hub 10 determine whether it is a main charging pile and needs to communicate with the BMS depending on the corresponding setting; specifically, each detection resistor can be used as a master-slave identification hardware circuit, and the resistance value of one detection resistor is set as a preset resistance value and is different from the resistance values of other detection resistors; furthermore, after the charging guns of the charging piles are inserted into the vehicle socket, whether the charging guns are used as main charging piles or not can be determined by identifying the resistance values of the detection resistors connected with the charging guns, an auxiliary power supply is provided for the BMS, and the charging guns are communicated with the BMS; at this time, the vehicle socket with the different resistance values of the detection resistors is connected, and the transmission of the corresponding signal between the corresponding charging pile and the first charging gun 20 is realized through the auxiliary power supply branch 103 and the connection confirmation branch 104.
For example, when the resistance value of the detection resistor R01 is a preset resistance value, after a charging gun connected to the vehicle socket 1 is connected to the charging pile concentrator 10, the charging pile 1 identifies that a bus charging device is connected by detecting the resistance value of R01, and indirectly connects to the electric vehicle as a main charging pile, and is responsible for outputting an auxiliary power supply, correspondingly detecting a connection confirmation cable CC1, and communicating with the BMS incoming line; the charging pile 2 identifies that the charging pile needs to be used as a slave charging pile through resistance value detection, is controlled by the charging pile 1, can receive the voltage and current requirements of the electric vehicle forwarded by the charging pile 1, does not perform actions of other charging processes such as corresponding detection of a connection confirmation cable CC1 and auxiliary power output, and only responds to a scheduling request of the charging pile 1; and then, the two jointly charge the electric automobile inlet wire.
Therefore, in order to realize the identification function, software logic inside each charging pile needs to be changed so as to realize different actions when connecting different resistance detection resistors. That is, the scheme only needs to add a converging charging device and update corresponding charging pile software, so that the combined low-power charging pile can be realized, and the charging with higher power can be realized.
In addition, the S-switch and resistor R2 shown in fig. 2 may be a device as defined in standard GBT 18487; in the above example, the connection confirmation cable CC1 in the charging gun of the charging pile 1 will be connected to the vehicle incoming line.
Alternatively, as shown in fig. 3, the charging pile hub 10 further includes: and the line concentration controller 106 is used for realizing communication between each charging pile and the electric automobile, selecting any charging pile to perform preparation work in a charging process on the electric automobile, and scheduling energy of each charging pile.
At this moment, should fill the inside each branch road that collects of electric pile concentrator 10, be respectively:
and a charging power supply converging branch 101 for converging the charging current received by the charging power supply interface (the interface for connecting the charging power supply cables DC + and DC-in the corresponding charging guns) on each vehicle socket to the charging power supply interface of the first charging gun 20.
And a first communication branch 1021 for realizing communication connection between a communication interface (an interface for connecting communication cables CAN _ H and CAN _ L in corresponding charging guns) on each vehicle socket and the hub controller 106.
And a second communication branch 1022 for implementing a communication connection between the hub controller 106 and the communication interface of the first charging gun 20.
An auxiliary power supply branch 103, for transmitting the auxiliary power supply received by the auxiliary power supply interface (the interface connecting the auxiliary power supply cables a + and a-in the corresponding charging gun) on any vehicle socket to the auxiliary power supply interface of the hub controller 106.
And a connection confirmation branch 104 for realizing connection between a connection confirmation interface on the hub controller 106 and a connection confirmation interface of the first charging gun 20.
The ground branch 105 is used to realize ground connection of a protection line interface (an interface for connecting the protection cable PE in the corresponding charging gun) on each vehicle outlet, a protection line interface of the line concentration controller 106, and a protection line interface of the first charging gun 20.
More preferably, in this case, the charging pile hub 10 may further include: the parameter detection module 107 is used for detecting the temperature of the charging pile concentrator 10 and the collected voltage and current of the charging pile concentrator and transmitting the temperature and the collected voltage and current to the line concentration controller; the parameter detecting module 107 may specifically include the following components shown in fig. 3: temperature sensors and voltage-current sensors.
The line concentration controller 106 is responsible for BMS communication with electric automobile, starts the charging process, can select arbitrary charging pile to carry out preparation work before charging such as insulation detection, and then can schedule the energy that should converge each charging pile that charging device connects according to electric automobile's demand.
Further, the bus charging device may further include: a heat sink, such as a liquid cooling device 108, is used to dissipate heat from the charging pile hub 10. That is, this charging device that converges can be provided with the liquid cooling interface, and then can collect more powerful direct current and fill electric pile and realize chaoji and charge.
In this solution, the first charging gun 20 may be a high-power liquid-cooled charging gun defined in the standard ChaoJI standard, thereby providing a feasible solution for the old charging station to implement ChaoJI charging. It is worth noting that the charging gun defined in the ChaoJI standard has no auxiliary power cord, so it does not require an auxiliary power supply; however, the line concentration controller 106 can work only by supplying power to the auxiliary power source, in practical application, the auxiliary power source can be provided for the line concentration controller 106 by the charging pile which is firstly connected with the confluence charging device, and the auxiliary power source can be provided for the line concentration controller 106 by the charging pile which is connected with the detection resistor with a preset resistance value, depending on the specific application environment, and the auxiliary power source is within the protection range of the application.
On the basis of additionally arranging the convergence charging device, the embodiment can realize charging with larger power or larger power by only changing the software of the charging pile, thereby realizing the high-power charging requirement of old charging stations; when the electric automobile with only one direct current charging port is charged in a low-power charging station, high-power charging can be realized.
Another embodiment of the present application further provides a charging pile energy scheduling method, which is applied to the conflux charging device and each charging pile connected to the conflux charging device according to any of the above embodiments. The structure and the operation principle of the bus charging device can be referred to the above embodiments, and are not described in detail herein.
As shown in fig. 4, the charging pile energy scheduling method includes:
s101, inserting the charging guns of the charging piles into vehicle sockets of the confluence charging device respectively.
Fig. 1 shows two charging piles as an example, a charging gun of the charging pile 1 is inserted into a vehicle socket 1, and a charging gun of the charging pile 2 is inserted into a vehicle socket 2; more vehicle sockets can be arranged in the confluence charging device so as to collect more energy of the charging piles, and the confluence charging device is not limited herein.
S102, one of the charging piles outputs an auxiliary power supply to supply power for a BMS of the electric automobile connected with the confluence charging device.
The charging gun for executing the step may be the main charging pile in fig. 2, or any one of the charging piles selected by the centralized controller in fig. 3; and at this moment, other charging piles do not provide auxiliary power supply, do not carry out preparation work such as insulation detection, only wait for the scheduling instruction.
S103, charging the electric automobile through the confluence charging device according to the vehicle charging request of the BMS by each charging pile.
In the case of no centralized controller in the busbar charging device shown in fig. 2, after step S101, the charging pile energy scheduling method further includes the following steps shown in fig. 5:
s201, each charging pile respectively detects the resistance value of a detection resistor connected in the collecting and charging device, and determines the master-slave relation through communication according to the corresponding resistance value.
The step S201 may specifically be: each charging pile respectively detects the resistance value of a detection resistor connected with the charging pile, and then, the charging piles CAN handshake in a CAN communication mode to determine a master charging pile and a slave charging pile; finally, the charging pile with the resistance value of the connected detection resistor being the preset resistance value determines that the charging pile is a main charging pile, and the charging pile with the resistance value of the connected detection resistor not being the preset resistance value determines that the charging pile is a slave charging pile.
In this configuration, in step S102, the auxiliary power supply may be output from the charging pile determined as the main charging pile. For example, charging pile 1 outputs auxiliary power to supply power to the BMS, and charging pile 2 keeps silent in auxiliary power, CAN communication, CC1 detection and the like, and waits for the scheduling of charging pile 1.
At this time, step S103 specifically includes the steps shown in fig. 5:
s301, the main charging pile is communicated with the BMS, and a vehicle charging request of the BMS is obtained.
And S302, the master charging pile schedules the energy of each slave charging pile and is responsible for executing a charging process.
For example, the charging pile 1 acquires a vehicle charging request through CAN communication and schedules the energy of the charging pile 2; charging pile 1 is also responsible for charging processes such as insulation detection.
In the case that the bus charging device shown in fig. 2 has a bus controller, the charging pile outputting the auxiliary power in step S102 may be specifically: firstly, inserting a charging pile of a convergence charging device; alternatively, it may be: the charging pile is connected with the detection resistor, and the resistance value of the detection resistor is a preset resistance value; it is not limited herein, and is within the scope of the present application, depending on the application environment.
With this configuration, step S103 specifically includes the steps shown in fig. 6:
s401, the line concentration controller obtains a vehicle charging request and selects any charging pile to execute preparation work in a charging process.
S402, the hub controller schedules the energy of each charging pile and controls each charging pile to charge the electric automobile.
After the line concentration controller acquires the vehicle charging request, the resources of the charging piles CAN be controlled and scheduled in a CAN communication mode; before charging, insulation detection and other preparation works CAN be carried out by selecting any charging pile in a CAN communication mode; after charging is started, the line concentration controller is responsible for analyzing the requirements of the electric automobile and issuing the requirements to each charging pile for execution; moreover, the line concentration controller is responsible for communication between each charging pile and the electric automobile in the charging process.
In the embodiment, high-power charging can be realized only by changing software in the charging pile and combining the application of the conflux charging device, so that the high-power charging requirement of old charging stations is met; when an electric vehicle with only one direct current charging port is charged in a low-power charging station, high-power charging can be achieved.
The same and similar parts among the various embodiments in the present specification are referred to each other, and each embodiment focuses on differences from other embodiments. In particular, the system or system embodiments are substantially similar to the method embodiments and therefore are described in a relatively simple manner, and reference may be made to some of the descriptions of the method embodiments for related points. The above-described system and system embodiments are only illustrative, wherein the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Those of skill would further appreciate that the various illustrative components and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the components and steps of the various examples have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the above description of the disclosed embodiments, features described in various embodiments in this specification can be substituted for or combined with each other to enable those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (15)
1. A bus charging device, comprising: a charging pile hub and a first charging gun; wherein, the first and the second end of the pipe are connected with each other,
the charging pile concentrator is provided with at least two vehicle sockets for connecting charging guns of corresponding charging piles;
the charging pile concentrator is used for collecting charging current received by each vehicle socket and charging the electric automobile through the first charging gun.
2. The bus charging device according to claim 1, wherein the charging pile hub includes therein: and connecting various interfaces on each vehicle socket to the collecting branches of the corresponding interfaces of the first charging gun respectively, and connecting detection resistors between a connection confirmation interface and a protection line interface on each vehicle socket respectively.
3. The bus charging apparatus according to claim 2, wherein the charging pile hub further comprises: and the line concentration controller is used for realizing communication between the line concentration controller and each charging pile and the electric automobile, selecting any one charging pile to perform preparation work in a charging process on the electric automobile, and scheduling energy of each charging pile.
4. The bus charging apparatus according to claim 3, wherein the charging pile hub further comprises: and the parameter detection module is used for detecting the temperature of the charging pile concentrator and the collected voltage and current of the charging pile concentrator and transmitting the temperature and the collected voltage and current to the line concentration controller.
5. The bus charging device according to claim 3, further comprising: and the heat dissipation equipment is used for dissipating heat of the charging pile concentrator.
6. The bus charging apparatus according to claim 2, wherein each of the collecting branches is respectively:
the charging power supply converging branch is used for converging charging current received by a charging power supply interface on each vehicle socket to a charging power supply interface of the first charging gun;
the communication branch is used for realizing communication connection between a communication interface on each vehicle socket and a communication interface of the first charging gun;
the auxiliary power supply branch is used for transmitting an auxiliary power supply received by an auxiliary power supply interface on any vehicle socket to an auxiliary power supply interface of the first charging gun;
the connection confirmation branch is used for realizing the connection between a connection confirmation interface on any vehicle socket and a connection confirmation interface of the first charging gun;
and the grounding branch is used for realizing the grounding connection of the protection line interface on each vehicle socket and the protection line interface of the first charging gun.
7. The bus charging device according to claim 6, wherein a resistance value of one of the detection resistors is a predetermined resistance value and is different from resistance values of the other detection resistors; the vehicle socket connected with the vehicle socket realizes transmission of corresponding signals between the charging pile and the first charging gun through the auxiliary power supply branch and the connection confirmation branch.
8. A bus charging apparatus according to claim 3, wherein each of said collecting branches comprises:
the charging power supply converging branch is used for converging charging current received by a charging power supply interface on each vehicle socket to a charging power supply interface of the first charging gun;
the first communication branch is used for realizing communication connection between a communication interface on each vehicle socket and the line concentration controller;
the second communication branch is used for realizing communication connection between the line concentration controller and the communication interface of the first charging gun;
the auxiliary power supply branch is used for transmitting auxiliary power supply received by an auxiliary power supply interface on any vehicle socket to an auxiliary power supply interface of the line concentration controller;
the connection confirmation branch is used for realizing the connection between a connection confirmation interface on the line concentration controller and a connection confirmation interface of the first charging gun;
and the grounding branch is used for realizing the grounding connection of the protection line interface on each vehicle socket, the protection line interface of the line concentration controller and the protection line interface of the first charging gun.
9. The bus charging device according to any one of claims 1 to 8, wherein the first charging gun is: and presetting a standard interface charging gun, or a Chaoji interface charging gun.
10. A charging pile energy scheduling method applied to the bus charging device according to any one of claims 1 to 9 and each charging pile connected to the bus charging device, the charging pile energy scheduling method comprising:
the charging guns of the charging piles are respectively inserted into the vehicle sockets of the confluence charging device;
one of the charging piles outputs an auxiliary power supply to supply power to a battery management system BMS of the electric automobile connected with the confluence charging device;
and each charging pile charges the electric automobile through the confluence charging device according to the vehicle charging request of the BMS.
11. The charging pile energy scheduling method according to claim 10, wherein, when there is no centralized controller in the bus charging device, after the charging guns of the charging piles are respectively inserted into the vehicle sockets of the bus charging device, the method further comprises:
each charging pile respectively detects the resistance value of a detection resistor connected in the confluence charging device, and determines the master-slave relationship through communication according to the corresponding resistance value;
and the step of outputting the auxiliary power is performed by the charging pile determined as the main charging pile.
12. The method for dispatching the charging pile energy according to claim 11, wherein when no centralized controller is arranged in the bus charging device, each charging pile charges the electric vehicle through the bus charging device according to a vehicle charging request of the BMS, and the method comprises the following steps:
the main charging pile is communicated with the BMS, and a vehicle charging request of the BMS is obtained;
and the master charging pile schedules the energy of each slave charging pile and is responsible for executing a charging process.
13. The charging pile energy scheduling method according to claim 10, wherein when a line concentration controller is provided in the bus charging device, the charging pile executing the step of outputting the auxiliary power supply comprises:
the charging pile is firstly inserted into the confluence charging device; alternatively, the first and second electrodes may be,
the resistance of the detection resistor is the charging pile with the preset resistance.
14. The method of claim 10, wherein when a hub controller is provided in the charging point device, each charging point charges the electric vehicle through the charging point device according to a vehicle charging request of the BMS, and the method comprises:
the line concentration controller acquires the vehicle charging request and selects any charging pile to execute preparation work in a charging process;
and the hub controller schedules the energy of each charging pile and controls each charging pile to charge the electric automobile.
15. The charging pile energy scheduling method of any one of claims 10 to 14, wherein when one of the charging piles outputs auxiliary power, the method further comprises:
and other charging piles wait for scheduling instructions.
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| CN202210385570.1A CN114771301A (en) | 2022-04-13 | 2022-04-13 | Converging charging device and charging pile energy scheduling method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115871505A (en) * | 2023-02-23 | 2023-03-31 | 云南丁旺科技有限公司 | Power aggregation device and power aggregation system |
| CN116494805A (en) * | 2023-06-21 | 2023-07-28 | 云南丁旺科技有限公司 | Charging device, charging system, and charging control method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115871505A (en) * | 2023-02-23 | 2023-03-31 | 云南丁旺科技有限公司 | Power aggregation device and power aggregation system |
| CN116494805A (en) * | 2023-06-21 | 2023-07-28 | 云南丁旺科技有限公司 | Charging device, charging system, and charging control method |
| CN116494805B (en) * | 2023-06-21 | 2023-09-08 | 云南丁旺科技有限公司 | Charging device, charging system, and charging control method |
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