Networking charging management device for new energy automobile charging piles

Abstract

A new energy automobile charging pile networking charging management device is used for controlling sharing and / or ordered charging of private charging piles and comprises a centralized control device and a charging control device. The centralized control device comprises a first power line carrier communication module; the charging control device comprises a second power line carrier communication module which is used for establishing a communication network based on a power line with the centralized control device to realize data interaction; the charging control device is connected with the charging pile and used for adjusting the charging power and / or managing the charging time. According to the utility model, based on the power line networking technology, the charging pile and the vehicle-mounted charger are respectively controlled through the charging control device, so that the vehicle charging networking is controlled, the charging power and the charging time of the charging pile can be dynamically adjusted according to the change of the power grid load, the ordered charging of disordered charging piles is realized, and the sharing of private charging piles can also be realized; and the charging problem caused by insufficient community power capacity is further relieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of charging control, in particular to the technical field of orderly charging and private pile sharing of new energy vehicles. BACKGROUND

[0002] The power capacity of a transformer area is limited and cannot meet the installation demand of charging piles for rapidly increasing new energy vehicle users, and the combination of private pile sharing and orderly charging can increase the number of installed charging piles and enable owners who cannot install charging piles to charge in the community, which is an effective means to solve the problem of insufficient power capacity of a transformer area.

[0003] Current private pile sharing is implemented independently by a single pile, and customers cannot search for other shared private piles in the community that meet the charging conditions, and by forming a bus network of each private pile in the community and matching and managing by the background, private pile sharing can be more effectively implemented.

[0004] Regarding network communication, a common solution is 4G wireless networking, but this has defects for charging pile networking, charging piles are usually installed in basements, and poor 4G signals in basements can affect communication quality and cause frequent equipment failures, and carrier communication technology based on power lines is more suitable for charging pile networking to implement orderly charging or private pile sharing.

[0005] Regarding charging pile control, existing charging pile charging control is integrated in the charging pile, and private pile sharing or orderly charging control must be implemented by installing a special charging pile, which brings great problems in popularization. First, owners who have installed charging piles are obviously unwilling to discard the existing charging piles and purchase new charging piles; second, forcing owners to purchase unified standard charging piles is obviously not conducive to the brand self-selection right of owners who have high quality requirements for charging piles, and moreover, some charging piles are configured by the vehicle manufacturer when the vehicle is purchased, and it is obviously not appropriate for users to abandon the original charging pile and purchase a new pile. Therefore, the current technical solution of simply modifying existing national standard charging piles of various brands to realize shared charging and orderly charging control is an urgent need. SUMMARY

[0006] In view of the above technical background, the purpose of the present application is to provide a new energy vehicle charging pile networked charging management device based on power line carrier communication networking to realize private pile sharing and / or orderly charging of charging piles.

[0007] The utility model discloses a kind of energy vehicle charging pile networking charging management devices for controlling charging pile private pile sharing and / or orderly charging, including centralized control device and charging control device;Centralized control device includes first power carrier communication module;Charging control device includes second power carrier communication module for establishing communication network based on power line with centralized control device to realize data interaction;Charging control device connects charging pile for adjusting charging power and / or management charging time.

[0008] Optionally, the charging control device includes a control signal input end and a control signal output end, a CP control line of the charging pile is connected to the control signal input end, and a CP control line of the charging gun head is connected to the control signal output end;The charging control device further includes a voltage dividing module and a control module;The voltage dividing module is connected to the control signal input end for adjusting the voltage amplitude of the CP control line of the charging pile;The control module is connected to the control signal output end for generating a PWM signal of the CP control line of the charging gun head.

[0009] Optionally, the charging control device includes a first detection module connected to the control signal output end for detecting the voltage amplitude of the CP control line of the charging gun head to determine the charging state of the vehicle.

[0010] Optionally, the charging control device includes a second detection module connected to the control signal input end for detecting the duty cycle of the PWM signal of the CP control line of the charging pile to determine whether the charging pile has charging conditions and the charging current limit.

[0011] Optionally, the voltage dividing module includes a first resistance switching module and a second resistance switching module.

[0012] Optionally, the charging control device includes a timing module for recording the charging time of the on-board charger based on the detection result of the first detection module as the basis for private pile sharing electric energy billing.

[0013] Optionally, the utility model includes a cloud server, and the centralized control device includes a power carrier router;The power carrier router is communicatively connected to the cloud server, and the power carrier router includes a first power carrier communication module and a second power carrier communication module to form a communication network, so as to realize information interaction between the cloud server and the charging control device.

[0014] Optionally, the cloud server includes a user interface for interacting with user mobile phones.

[0015] Optionally, the cloud server includes a data processing module for receiving substation power system monitoring data obtained by a master station.

[0016] The utility model discloses based on power line networking technology, through charging control device respectively control charging pile and on -vehicle charger, make car charging networking controlled, avoided the equipment cost investment of installing new stake, can the dynamic adjustment charging pile charging power and charging time of power grid load's change, realized the orderly charging of disordered charging pile, can also realize charging pile private stake sharing, further relieve the charging problem of community power capacity deficiency.

[0017] The application and its working principle will be further described below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is charging control device structure view for the utility model embodiment;

[0019] Figure 2 It is charging control device circuit principle view for the utility model embodiment;

[0020] Figure 3 It is centralized control device structure view for the utility model embodiment;

[0021] Figure 4 It is cloud server structure view for the utility model embodiment. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments. Obviously, the described embodiments are only part of the embodiments of the application, not all the embodiments.

[0023] The embodiment discloses a new energy automobile charging pile networking charging management device, and is suitable for private stake sharing and orderly charging management of the AC charging pile of Chinese standard (GB / T 18487.1-2015) and Chinese standard (GB / T 18487.1-2023) specification. The embodiment assumes that the on-vehicle charger has the S2 switch of the national standard, and for the on-vehicle charger without the S2 switch, the corresponding adjustment can be made according to the technical solutions of the embodiment by the person skilled in the art.

[0024] The embodiment includes a centralized control device, a charging control device and a cloud server. Figure 3 The centralized control device includes a power carrier router, the charging control device includes a second power carrier communication module 7 for establishing a power line-based communication network with the power carrier router to realize data interaction, and the power carrier router is in communication connection with the cloud server to realize information interaction between the cloud server and the charging control device.

[0025] In the embodiment, as Figure 4The cloud server includes a user interface for interacting with the user's mobile phone APP. It can be understood that the community user's charging pile is connected to the power carrier router through the power line, and the user's charging pile joins the private pile sharing and orderly charging management. The user can set the driving time, expected charging capacity, sharable period, and shared charging data through the dedicated APP communication connection with the cloud server, so that the management program running on the cloud server can optimize the private pile sharing and orderly charging management.

[0026] In this embodiment, as Figure 4 The cloud server includes a data processing module for receiving the power load data of the substation obtained by monitoring the power system of the substation. It can be understood that the cloud server management program dynamically receives the power load data. If the rated compliance is exceeded, the charging power is calculated according to the set rules, and even the charging of part or all of the charging piles is stopped, and then the charging control device of each charging pile is sent to execute the instruction to balance the power load. Further, the cloud server management program can flexibly arrange the charging time of each charging pile, so that the power resources in the night low valley period can be fully utilized, and the power in the peak period is released as much as possible.

[0027] In this embodiment, the cloud server connects the charging pile through the charging control device to adjust the charging power and manage the charging time. As Figure 1 , Figure 2 The charging control device includes a control signal input end 1 and a control signal output end 2. The CP control line of the charging pile is connected to the control signal input end 1, and the CP control line of the charging gun head is connected to the control signal output end 2.

[0028] The charging control device further includes a voltage dividing module 3, a control module 4, a first detection module 5, a second detection module 6, and a main control MCU 8.

[0029] The voltage dividing module 3 is connected to the control signal input end for adjusting the voltage amplitude of the CP control line of the charging pile. The voltage dividing module 3 includes a first resistance switching module and a second resistance switching module, both of which include an electronic switch controlled by the first IO port 9 and the second IO port 10 of the main control MCU 8. The first resistance 15 of the first resistance switching module has a resistance of 2700 ohms, and the second resistance 16 of the second resistance switching module has a resistance of 1300 ohms.

[0030] The control module 4 is connected to the control signal output end for generating the PWM signal of the CP control line of the charging gun head. The PWM signal is generated by the fourth IO port 12 of the main control MCU 8. The control module 4 includes an output voltage dividing resistor 17 with a resistance of 1000 ohms, and the output voltage dividing resistor is connected to the control signal output end.

[0031] The first detection module 5 is connected to the control signal output end for detecting the voltage amplitude of the charging gun head CP control line to determine the charging state of the automobile. The fifth IO port 13 of the main control MCU 8 is controlled to measure and determine the voltage change of the charging gun head CP control line through the ADC function.

[0032] The second detection module 6 is connected to the control signal input end 1 for detecting the PWM signal duty cycle of the charging pile CP control line to determine whether the charging pile has charging conditions and the charging current limit value. The third IO port 11 of the main control MCU 8 is realized, and the PWM signal duty cycle is obtained through the timer capture pulse width function.

[0033] The charging control device includes a timing module for recording the charging time of the vehicle-mounted charger according to the detection result of the first detection module as the basis for private pile sharing electric energy billing.

[0034] The embodiment includes the following private pile sharing and orderly charging control process.

[0035] Control process one, the charging control device obtains the confirmation signal of the charging gun connected to the vehicle-mounted charger socket through the first detection module 5; when the charging gun of the charging pile is connected to the charging socket of the vehicle-mounted charger, the first detection module 5 detects that the voltage at one end of the output voltage dividing resistor 17 changes from 12V to 9V, then it is confirmed that the charging gun successfully connects the vehicle-mounted charger socket.

[0036] Control process two, the charging control device confirms the connection of the charging pile to the vehicle-mounted charger socket through the voltage dividing module 3; that is, the first IO port 9 pulls up to turn on the first resistor 15, so that the charging pile CP line changes from 12V to 9V, confirming that the gun head is successfully connected to the charging pile, which can be switched to a PWM signal. The charging pile obtains the confirmation of the connection to the vehicle-mounted charger socket, and further makes the charging pile CP line generate a PWM signal. If the charging pile needs to be carded for identity confirmation, the user will card first before or after plugging in, and after passing the authentication, the charging pile CP line will generate a PWM signal, otherwise it cannot proceed to the next step. If the charging pile is set in the private pile sharing state, the charging pile must be set in the plug-and-play state without card authorization.

[0037] Control process three, the charging control device obtains the first PWM signal duty cycle generated by the charging pile through the second detection module 6, and calculates the first charging current value sent to the centralized control device according to the national standard. The second detection module 6 captures the first PWM signal duty cycle through the timer, and calculates the first charging current value required by the charging pile according to the first PWM signal duty cycle through the national standard. It can be understood that the charging current cannot exceed this value, so as to avoid overcurrent and overload of the charging pile.

[0038] Control flow four, after the charging control device identifies the charging request of the charging pile and obtains the charging current value required by the charging pile, the charging control device applies for charging authorization to the cloud server; it can be understood that the charging must be initiated by the local charging pile first and then authorized by the cloud server.

[0039] Control flow five, the cloud server first determines whether the charging pile is in a private pile sharing state, if so, the user himself using the charging pile needs to pass the special APP to the cloud server to confirm the authentication, if it is a customer shared charging, the customer can apply to use the charging pile for charging through the special shared APP to the cloud server, including payment of fees and other formalities, after the cloud server confirms the authentication. After that, the cloud server determines the charging power and charging time of the charging pile according to various factors such as power grid load, and sends user charging instructions or shared charging instructions to the charging control device, and the charging control device obtains the PWM signal duty cycle according to the charging current value of the instructions.

[0040] Control flow six, the charging control device controls the charging pile to charge the car according to the charging time information of the cloud server, and the control module 4 generates a PWM signal with a second PWM signal duty cycle; it can be understood that the cloud server can flexibly arrange the charging time and charging power of the charging pile, so that the power resources in the night low valley period can be fully utilized, and the load in the peak period can be balanced.

[0041] Control flow seven, the on-board charger confirms that the charging is ready, the S2 switch is closed, the signal voltage at one end of the output voltage dividing resistor changes from 9V to 6V, the first detection module 5 detects that the signal voltage at one end of the output voltage dividing resistor changes from 9V to 6V, then the second IO port 10 is pulled high to connect the second resistor 16, and the on-board charger confirms that the charging pile is ready, and the charging pile CP line signal voltage changes from 9V to 6V, so that the charging pile control power switch is closed to start power supply, and the vehicle starts charging. If it is in a private pile sharing state, the timing module 18 starts timing at this time. During the charging process, the main control MCU 8 dynamically monitors the change of the first PWM signal duty cycle through the second detection module 6 to ensure that the actual charging current is not higher than the current value determined by the charging pile. It can be understood that the charging pile may need to reduce the charging current or stop charging due to overheating and other factors during the charging process, and the first PWM duty cycle will change. If it is detected that the current value determined by the first PWM duty cycle is lower than the current value determined by the second PWM duty cycle, the main control MCU 8 should immediately adjust the second PWM duty cycle according to the first PWM duty cycle to reduce the charging current or stop charging of the on-board charger.

[0042] Control flow eight, the cloud server controls the end of charging or the charging pile stops generating the PWM signal of the charging pile CP line, then the charging control device stops generating the PWM signal through the control module 3 to make the on-board charger stop charging the car, or the on-board charger actively stops charging, after stopping charging, the first detection module 5 detects that the voltage at one end of the output voltage dividing resistor 17 changes from 6V to 9V, then the second resistor 16 is disconnected, then the on-board charger indicates to the charging pile that the on-board charger has stopped charging, then the charging pile breaks the brake and stops power supply. If the private pile sharing state is executed, the timing module 18 stops timing at this time, and the accumulated time is sent to the remote server to calculate the shared charging fee according to the accumulated time and the charging current.

[0043] The embodiment controls the charging pile and the on-board charger through the charging control device respectively, orderly reforms the disordered charging pile, and avoids the equipment cost investment of installing a new pile. The embodiment relies on the power line carrier communication to make the charging pile not be interfered by the wireless communication signal problem and be connected to the cloud server, the cloud server can connect the data interface of the power monitoring department to obtain the power grid data, dynamically adjusts the charging power and the charging time of each charging pile in the community along with the change of the power grid load, realizes the orderly charging management of the disordered charging pile, and can realize the private pile sharing of the charging pile, optimizes and matches one charging pile for the user to share and use by the cloud server, the sharing scheme can optimize the user benefits more than the single pile independent sharing, and further relieves the charging problem caused by the insufficient power capacity of the community.

[0044] The new energy automobile charging pile networked charging management device provided by the utility model is introduced in detail, the description of the embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the art, according to the idea of the utility model, the specific implementation mode and the application range will have the change, and the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A new energy vehicle charging pile networked charging management device, characterized in that: The application discloses a device for controlling private pile sharing and / or orderly charging of charging piles, which comprises a centralized control device and a charging control device. ​ 2. The new energy vehicle charging pile networking charging management device according to claim 1, characterized in that: The charging control device comprises a control signal input end and a control signal output end, a CP control line of the charging pile is connected to the control signal input end, and a CP control line of a charging gun head is connected to the control signal output end; the charging control device further comprises a voltage dividing module and a control module; the voltage dividing module is connected to the control signal input end and used for adjusting a voltage amplitude of the CP control line of the charging pile; and the control module is connected to the control signal output end and used for generating a PWM signal of the CP control line of the charging gun head.

3. The new energy vehicle charging pile networking charging management device according to claim 2, characterized in that: The device comprises a first detection module connected to the control signal output end and used for detecting a voltage amplitude of the CP control line of the charging gun head so as to determine a charging state of a vehicle.

4. The new energy vehicle charging pile networking charging management device according to claim 3, characterized in that: The device comprises a second detection module connected to the control signal input end and used for detecting a duty cycle of a PWM signal of the CP control line of the charging pile so as to determine whether the charging pile has a charging condition and a charging current limit value.

5. The new energy vehicle charging pile networking charging management device according to claim 4, characterized in that: The voltage dividing module comprises a first resistance switching module and a second resistance switching module.

6. The new energy vehicle charging pile networking charging management device according to claim 4, characterized in that: The charging control device comprises a timing module used for recording a charging time of a vehicle-mounted charging machine according to a detection result of the first detection module and taking the charging time as a basis for charging electric energy in private pile sharing.

7. The new energy vehicle charging pile networked charging management device according to any one of claims 1 to 6, characterized in that: The device comprises a cloud server, and the centralized control device comprises a power carrier router; the power carrier router is in communication connection with the cloud server, and the power carrier router comprises the first power carrier communication module and the second power carrier communication module to form a communication network, so as to realize information interaction between the cloud server and the charging control device.

8. The new energy vehicle charging pile networking charging management device according to claim 7, characterized in that: The cloud server comprises a user interface used for interacting with a user's mobile phone.

9. The new energy vehicle charging pile networking charging management device according to claim 7, characterized in that: The cloud server comprises a data processing module used for receiving power consumption load data of a power supply area obtained by a master station by monitoring a power supply system of the power supply area.

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