WO2022062665A1 - Vehicle, charging device and computer-readable storage medium - Google Patents

Abstract

A vehicle, a charging device and a computer-readable storage medium. The charging device comprises a charging pile (10), a first charging gun (104) and a second charging gun (105); the charging pile (10) comprises a control module (101), a first charging controller (102) and a second charging controller (103); according to a charging mode, the control module (101) sets the first charging gun (104) to be a first main gun and sets the second charging gun (105) to be a first secondary gun; and the control module (101) determines that the first main gun and the first secondary gun are connected to the same vehicle, and when the first charging controller (102) detects that the voltage at a first voltage detection point is a third preset voltage, the first main gun and the first secondary gun are enabled to charge a first vehicle. By means of pre-determining a main gun and a secondary gun, and then using different control policies for the main gun and the secondary gun, the safety of vehicles and operators is improved.

Description

Vehicle, charging device, and computer-readable storage medium

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of the application date of September 28, 2020, the application number of 202011042496.0, and the title of the patent application "vehicle, charging device and computer-readable storage medium", the entire contents of which are incorporated into this application by reference.

technical field

The present application relates to the technical field of charging, and in particular, to a vehicle, a charging device, and a computer-readable storage medium.

Background technique

With the widespread use of new energy vehicles, the application of dual-gun charging technology for new energy vehicles is becoming more and more popular, but the industry lacks standards to accurately define and regulate dual-gun charging. The current dual-gun charging technology still has hidden dangers. In the existing dual-gun charging technology, in the application scenario where the dual-guns charge the vehicle, usually when the dual-guns are inserted into the vehicle that needs to be charged, the main gun and the slave gun are determined according to the insertion sequence, and when the main gun starts to charge. At the same time, the slave gun will also output charging at the same time according to the requirements of the master gun. However, this method has higher requirements on the structure of the connection between the master gun and the slave gun and the charging pile, and the method of determining the master gun and the slave gun is relatively random, which poses a safety hazard to the vehicle and the operator.

SUMMARY OF THE INVENTION

The present application provides a vehicle, a charging device and a computer-readable storage medium. By predetermining a master gun and a slave gun, and then adopting different control strategies for the master gun and the slave gun, the safety of the vehicle and the operator is improved.

The present application is implemented in this way. A first aspect of the present application provides a charging device. The charging device includes: a charging pile, a first charging gun, and a second charging gun, and the charging pile includes a control module and a first charging controller. and a second charging controller, the control module is connected to the first charging controller and the second charging controller, the first charging controller is connected to the first charging gun, and the second charging controller connecting the second charging gun;

The control module sets the first charging gun as the first master gun according to the charging mode, and sets the second charging gun as the first slave gun;

Determine that the first main gun is connected to the first vehicle, and control the first main gun to send communication information to the first vehicle through the first charging controller;

determining that the first slave gun is connected to the first vehicle;

The control module determines that the first master gun and the first slave gun are connected to the same vehicle, and when the first charging controller detects that the voltage of the first voltage detection point is a third preset voltage, the A master gun and the first slave gun charge the first vehicle.

A second aspect of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and the computer program is executed by a processor to perform the following steps:

Setting the first charging gun as the first master gun according to the charging mode, and setting the second charging gun as the first slave gun;

determining that the first main gun is connected to the first vehicle, and controlling the first main gun to send communication information to the first vehicle;

determining that the first slave gun is connected to the first vehicle;

When it is determined that the first master gun and the first slave gun are connected to the same vehicle, and when it is detected that the voltage of the first voltage detection point is the third preset voltage, the first master gun and the first slave gun are used to connect to the same vehicle. The first vehicle is charged.

A third aspect of the present application provides a vehicle, the vehicle is connected to a charging device, the charging device includes: a first charging pile, a first charging gun, and a second charging gun, and the first charging pile includes a first control module , a first charging controller and a second charging controller, the first control module is connected to the first charging controller and the second charging controller, and the first charging controller is connected to the first charging gun , the second charging controller is connected to the second charging gun; the first control module sets the first charging gun as the first master gun according to the charging mode, and sets the second charging gun as the first slave gun;

the vehicle includes a first vehicle charging controller;

When the first vehicle charging controller communicates with the first control module and determines that the first charging pile satisfies the first charging condition, it sends a charging instruction to the first control module through the first main gun, and sends a charging instruction to the first control module through the first main gun. The first master gun and the first slave gun charge the vehicle, wherein the first charging condition is that the first master gun and the first slave gun are connected to the same vehicle.

The technical solution of the present application provides a vehicle, a charging device, and a computer-readable storage medium. The charging device includes: a charging pile, a first charging gun, and a second charging gun, and the charging pile includes a control module, a first charging controller, and a second charging gun. Two charging controllers, the control module sets the first charging gun as the first master gun and the second charging gun as the first slave gun according to the charging mode; the control module detects through the first charging controller that the voltage of the first voltage detection point is the first At a preset voltage, determine that the first main gun is connected to the first vehicle, and control the first main gun to send communication information to the first vehicle through the first charging controller; the control module detects the second voltage detection point through the second charging gun When the voltage is the second preset voltage, it is determined that the first slave gun is connected to the first vehicle; the control module determines that the first master gun and the first slave gun are connected to the same vehicle, and detects the voltage of the first voltage detection point through the first charging controller When the voltage is the third preset voltage, the first vehicle is charged through the first master gun and the first slave gun. In the technical solution of the present application, it is determined that the voltage of the first voltage detection point and the voltage of the second voltage detection point both meet the preset voltage, and when it is determined that the master gun and the slave gun are connected to the same vehicle, the first vehicle is then checked by the master gun and the slave gun. Charging avoids the problem of potential safety hazards caused by charging when the main gun and the slave gun are connected to different vehicles. By pre-determining the master gun and the slave gun, different control strategies are adopted for the master gun and the slave gun to avoid random determination of the master gun. The problem of charging failure caused by the gun and the slave gun enables the charging device to charge the vehicle normally and improves the safety of the charging process.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only for the present application. In some embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

FIG. 1 is a block diagram of a charging device provided in Embodiment 1 of the present application;

FIG. 2 is a schematic structural diagram of a charging device provided in Embodiment 1 of the present application;

FIG. 3 is a working flowchart of charging a vehicle by the charging device provided in Embodiment 1 of the present application;

4 is another schematic structural diagram of a charging device provided in Embodiment 1 of the present application;

FIG. 5 is a working flowchart of a computer-readable storage medium provided in Embodiment 2 of the present application;

6 is a block diagram of a vehicle provided in Embodiment 3 of the present application;

FIG. 7 is another block diagram of a vehicle provided in Embodiment 3 of the present application;

FIG. 8 is a schematic structural diagram of the block diagram shown in FIG. 7 .

detailed description

In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

In order to illustrate the technical solutions of the present application, the following specific embodiments are used for description.

Embodiment 1 of the present application provides a charging device. As shown in FIG. 1 , the charging device includes: a charging pile 10 , a first charging gun 104 and a second charging gun 105 , and the charging pile 10 includes a control module 101 and a first charging controller 102 and the second charging controller 103, the control module 101 is connected to the first charging controller 102 and the second charging controller 103, the first charging controller 102 is connected to the first charging gun 104, and the second charging controller 103 is connected to the second charging gun 105;

The control module 101 sets the first charging gun 104 as the first master gun according to the charging mode, and sets the second charging gun 105 as the first slave gun;

When the control module 101 detects that the voltage of the first voltage detection point is the first preset voltage through the first charging controller 102, it determines that the first main gun is connected to the first vehicle, and controls the first main gun to the first vehicle through the first charging controller 102. The first vehicle sends communication information;

When the control module 101 detects through the second charging gun 105 that the voltage of the second voltage detection point is the second preset voltage, it determines that the first slave gun is connected to the first vehicle;

The control module 101 determines that the first master gun and the first slave gun are connected to the same vehicle, and when the first charging controller 102 detects that the voltage of the first voltage detection point is the third preset voltage, the first master gun and the first slave gun The first vehicle is charged.

The first charging controller 102 is connected to the first charging gun 104 through the control guide wire. When only the first charging gun 104 is connected to the first vehicle, the first charging controller 102 is connected to the first vehicle through the first charging gun 104. communication. The second charging controller 103 is connected to the second charging gun 105 through the control guide wire. When only the second charging gun 105 is connected to the first vehicle, the second charging controller 103 communicates with the first vehicle through the second charging gun 105 . The control module 101 controls the first charging gun 104 and the second charging gun 105 to charge the first vehicle according to the communication between the first charging gun 104 and the second charging gun 105 and the vehicle. When the first vehicle is charging, the first charging controller 102 allocates the output power of the first charging gun 104 according to the communication between the first charging gun 104 and the vehicle, and the second charging controller 103 allocates the output power according to the first charging gun 104 The output power of the second charging gun 105 . The charging pile 10 further includes a power supply device, and the power supply device is respectively connected to the control module 101 , the first charging gun 104 and the second charging gun 105 , and is used to supply the first charging gun 104 and the second charging gun under the control of the control module 101 to the first charging gun 104 and the second charging gun. 105 output power.

Among them, the control module can receive the user's control command through the communication interaction device, such as receiving the charging mode set by the user, the control module can also communicate with the remote service center through the wireless communication module to receive the control command, and the control module can also calculate by setting The program calculates the charging cost of using the charging pile. The control module can be MCU (Microcontroller Unit; Micro Control Unit), and the charging mode is the way that the charging pile charges the vehicle. One of the charging guns in the charging pile can charge the vehicle, or it can be in the "one car with two guns" mode, and the two charging guns in the charging pile can charge the vehicle. The operator sets the charging mode on the charging pile 10 to the "one-car, one-gun" mode. If only the first charging gun 104 is inserted, the first charging controller 102 allocates power for charging according to the communication situation of the first charging gun. If only the second charging gun 105 is plugged in, the first charging controller 102 allocates power for charging according to the communication situation of the second charging gun 105 . The operator sets the charging mode on the charging pile 10 to "two guns in one car" mode, the control module 101 sets the first charging gun 104 as the first master gun according to the charging mode, and sets the second charging gun 105 as the first slave gun, That is, the first charging gun 104 and the second charging gun 105 are used to charge the vehicle at the same time. The difference between the first master gun and the first slave gun is that during the charging process, the first master gun communicates with the first vehicle to obtain the output power distribution, and the first slave gun does not communicate with the first vehicle. A communication result of a vehicle outputs power.

The first voltage detection point is set on the control guide line between the first charging controller 102 and the first charging gun 104 , and the second voltage detection point is set between the second charging controller 103 and the second charging gun 105 On the control guide line, the charging state of the first charging gun 104 and the second charging gun 105 can be determined according to the detection of the voltages at the first voltage detection point and the second voltage detection point. For example, the control lead between the first charging controller 102 and the first charging gun 104 and the control lead between the second charging controller 103 and the second charging gun 105 are both connected to 12V voltage. When the 12V level signal is detected, it can be determined that the first charging gun 104 is not connected to the vehicle. When a 9V level signal or a PWM signal is detected at the first voltage detection point, it can be determined that the first charging gun 104 is connected to the vehicle. When the 6V PWM signal is detected at the first voltage detection point, it can be determined that the vehicle is ready to be charged or the first charging gun 104 is charging the vehicle. Therefore, the charging pile can use the same (CP) line and rely on the voltage of 9V, 6V, and square wave changes to realize the judgment and detection of the gun insertion, charging, and communication.

There are various ways for the control module 101 to determine that the first master gun and the first slave gun are connected to the same vehicle. It is determined that the first master gun and the first slave gun are connected to the same vehicle. Alternatively, when the first charging controller 102 receives the communication information sent by the second charging controller 103, it is determined that the first master gun and the first slave gun are connected to the same vehicle. It can also be that the communication information sent by the first charging controller 102 is received through the second charging controller 103, and the communication information sent by the second charging controller 103 is received through the first charging controller 102 to determine that the first main gun and the The first slave gun is attached to the same vehicle. It is also possible to control the change of the power-on parameter of the control guide line between the first charging controller 102 and the first charging gun 104, and detect the change of the parameter through the second voltage detection point, so as to determine the difference between the first main gun and the first charging gun. Connect the same vehicle from the gun.

For example, as shown in FIGS. 1 and 2 , when the first master gun and the first slave gun are connected to the same vehicle, the second charge controller 103 and the first charge controller 102 will eventually be connected in parallel, that is, CP and CP' is finally connected together on the EVCC201 side of the vehicle end and forms a loop. At this time, when the control module 101 sends the communication information through the first charging controller 102 , it can finally be received through the channel of the second charging controller 103 , so that the control module 101 receives the first charging control information through the second charging controller 103 . When the communication information sent by the controller 102 is used, it is determined that the first master gun and the first slave gun are connected to the same vehicle.

Wherein, the first master gun and the first slave gun can be controlled to charge the vehicle when the following three conditions are met: The first condition is to determine that both the first master gun and the first slave gun are connected to the vehicle by detecting the voltage of the voltage detection point . The second condition is to determine that the first master gun and the first slave gun are connected to the same vehicle. The third condition is that when the voltage of the first voltage detection point is detected as the third preset voltage, it is determined that the vehicle is ready to be charged, and the first vehicle is charged through the first master gun and the first slave gun. By setting the above three conditions, the safety of charging the vehicle with the charging pile is improved.

The first embodiment of the present application provides a charging device. The charging device includes: a charging pile 10 , a first charging gun 104 and a second charging gun 105 , and the charging pile 10 includes a control module 101 , a first charging controller 102 and a second charging control controller 103, the control module 101 sets the first charging gun 104 as the first master gun according to the charging mode, and sets the second charging gun 105 as the first slave gun; the control module 101 detects the first voltage detection point through the first charging controller 102 When the voltage is the first preset voltage, it is determined that the first main gun is connected to the first vehicle, and the first charging controller 102 controls the first main gun to send communication information to the first vehicle; the control module 101 uses the second charging gun 105 When it is detected that the voltage of the second voltage detection point is the second preset voltage, it is determined that the first slave gun is connected to the first vehicle; the control module 101 determines that the first master gun and the first slave gun are connected to the same vehicle, and the first charging controller 102 : When it is detected that the voltage of the first voltage detection point is a third preset voltage, the first vehicle is charged through the first master gun and the first slave gun. In this embodiment, it is determined that the voltage of the first voltage detection point and the voltage of the second voltage detection point both meet the preset voltage, and when it is determined that the master gun and the slave gun are connected to the same vehicle, the first vehicle is charged through the master gun and the slave gun. , to avoid the problem of potential safety hazards caused by charging when the master gun and the slave gun are connected to different vehicles, and by pre-determining the master gun and the slave gun, and then adopting different control strategies for the master gun and the slave gun, to avoid random determination of the master gun And the problem of charging failure caused by the gun, so that the charging device can charge the vehicle normally, and the safety of the charging process is improved.

In some embodiments, the control module 101 determines that the first master gun and the first slave gun are connected to the same vehicle, which may include the following three embodiments:

In the first embodiment, when the control module 101 detects that the second charging controller 103 receives the communication information sent by the first charging controller 102, it determines that the first master gun and the first slave gun are connected to the same vehicle.

Wherein, when the first master gun and the first slave gun are connected to the same vehicle, the control guide line between the first charging controller 102 and the first charging gun 104 and the connection between the second charging controller 103 and the second charging gun 105 The control leads are connected in the vehicle. Therefore, after detecting that the second charging controller 103 receives the communication information sent by the first charging controller 102, it can be determined that the first master gun and the first slave gun are connected to the same vehicle. The communication information can be a custom communication signal, for example, a certain sequence of pulse signals, etc.

The technical effect of the first embodiment is: when it is detected that both the first master gun and the first slave gun are connected to the vehicle, the first charging controller 102 sends a custom communication signal, and the second charging controller 103 receives the custom communication The signal realizes the determination that the first master gun and the first slave gun are connected to the same vehicle.

In the second embodiment, when the control module 101 detects that both the first charging controller 102 and the second charging controller 103 have received the communication information sent by the other party, it determines that the first master gun and the first slave gun are connected to the same vehicle.

Wherein, when the first master gun and the first slave gun are connected to the same vehicle, the control guide line between the first charging controller 102 and the first charging gun 104 and the connection between the second charging controller 103 and the second charging gun 105 The control leads are connected in the vehicle. Therefore, when it is detected that both the first charging controller 102 and the second charging controller 103 have received the communication information sent by the other party, it is determined that the first master gun and the first slave gun are connected to the same vehicle.

The technical effect of the second embodiment is: when it is detected that both the first master gun and the first slave gun are connected to the vehicle, the first charging controller 102 sends a custom communication signal, and the second charging controller 103 receives the custom communication The second charging controller 103 sends a custom communication signal, and the first charging controller 102 receives the custom communication signal, thereby realizing the determination that the first master gun and the first slave gun are connected to the same vehicle.

In the third embodiment, the charging pile further includes a first power supply control device, a second power supply control device, a first switch, a third switch, a first resistor and a second resistor, and the first power supply control device is connected to the first end of the first switch , the control end of the first switch is connected to the control module, the second end of the first switch is connected to the first end of the first resistor, and one end of the first charge controller 102 forms a first common contact with the second end of the first resistor The first control lead wire is connected to the first charging gun, the other end of the first charging controller 102 is connected to the other end of the first charging gun, and is connected to the vehicle ground when connected to the vehicle, and the first voltage detection point is located at the On a control lead line, when the control module controls the first switch to be turned on, the voltage output by the first power supply control device forms a voltage divider on the first resistor.

The second power supply control device is connected to the first end of the third switch, the control end of the third switch is connected to the control module, the second end of the third switch is connected to the first end of the second resistor, and one end of the second charging controller 103 is connected to the control module. The second common contact formed by the second end of the second resistor is connected to the second charging gun through the second control guide wire, the other end of the second charging controller 103 is connected to the other end of the first charging gun, and is connected to the vehicle When connected to the vehicle ground, the second voltage detection point is located on the second control guide line;

The control module 101 controls the first switch to switch between on and off, and determines that the first master gun is connected to the first slave gun when it detects that the voltage of the second voltage detection point changes with the state of the first switch. vehicle.

Wherein, when the first master gun and the first slave gun are connected to the same vehicle, the first control guide line between the first charging controller 102 and the first charging gun 104 and the second charging controller 103 and the second charging gun 105 A second control guide line between is connected in the vehicle. Therefore, when the voltage on the first control lead changes, the voltage change can be detected on the second control lead.

Wherein, the first power supply control device and the second power supply control device may be voltage converters, which convert the 220V voltage into 5V DC voltage or 12V DC voltage, and the first power supply control device outputs the 12V power supply voltage through the first switch, when the first switch When turned on, a voltage divider is formed on the first resistor, but if a fixed voltage value is detected at the second voltage detection point on the second control lead line, it does not mean that the first master gun and the first slave gun are connected to the same vehicle . Therefore, the first switch is controlled to continuously switch to a specific state, a specific voltage change is detected at the second voltage detection point, and it is determined that the first master gun and the first slave gun are connected to the same vehicle. Wherein, the continuous switching of the first switch to a specific state may be the switching of the first switch on and off, so that if a voltage change corresponding to the on and off of the first switch is detected at the second voltage detection point, the first main gun and the second A slave gun forms the same circuit, so that it can be determined that the first master gun and the first slave gun are connected to the same vehicle.

The technical effect of the third embodiment is: when it is detected that both the first master gun and the first slave gun are connected to the vehicle, the first switch is controlled to switch the specific state continuously, and the specific voltage change is detected through the two voltage detection points, thereby realizing the It is determined that a master gun and a first slave gun are connected to the same vehicle.

As an embodiment, the charging device further includes a second switch, and the second switch is arranged between the second common contact and the second voltage detection point;

The second switch is in a normally closed state. When the control module 101 determines that the first master gun and the first slave gun are connected to the same vehicle, the control module 101 controls the second switch to be disconnected.

Among them, in this embodiment, the first master gun communicates with the vehicle, and when it is determined that the first master gun and the first slave gun are connected to the same vehicle, the communication between the second charging controller 103 and the vehicle is disconnected by disconnecting the second switch , to avoid interfering with the communication between the first main gun and the vehicle.

In some embodiments, when the control module 101 controls the first master gun and the first slave gun to charge the first vehicle, the first master gun communicates with the first vehicle through the first master gun, and the first master gun and the second An output power from the gun is distributed.

Wherein, the first charging controller 102 obtains the power distribution instruction through the communication of the first master gun with the vehicle, and sends the power distribution instruction to the control module 101, and the control module 101 controls the first master gun and the first slave gun according to the power distribution instruction output corresponding power. For example, control the first master gun to output 50% power, and control the first slave gun to output 50% power.

The present embodiment will be specifically described below through a specific structure:

As shown in FIG. 2, the charging pile includes a first SECC102 (charging pile communication controller) (equivalent to the above-mentioned first charging controller), a first power supply control device 111, a switch S1, a resistor R1, a resistor R3, a second SECC103 ( charging pile communication controller) (equivalent to the above-mentioned second charging controller), the second power supply control device 112, the switch S2, the resistor R2, the resistor R4 and the switch S3, the first power supply control device 111 is connected to the switching end of the switch S1, the resistor The first end of R3, the ground end and the first charging gun (not shown), the second end of the resistor R3 is connected to the first charging gun, the control end of the switch S1 can be connected to the control module, and the other end of the switch S1 is connected to the resistor R1 The first end of the resistor R1, the second end of the resistor R1 is connected to the first SECC102 and the first charging gun, a first voltage detection point A is set between the second end of the resistor R1 and the first charging gun, the first SECC102 is connected to the ground and The first charging gun, the second power supply control device 112 is connected to the switching end of the switch S3, the first end of the resistor R4, the ground end and the second charging gun (not shown), the second end of the resistor R4 is connected to the second charging gun, The control end of the switch S3 can be connected to the control module, the other end of the switch S3 is connected to the first end of the resistor R2, the second end of the resistor R2 is connected to the second SECC103 and the first end of the switch S2, and the second end of the switch S2 is connected to the first end of the second SECC103. Two charging guns, the second SECC103 is connected to the ground terminal and the second charging gun, a second voltage detection point B is provided between the second end of the switch S2 and the second charging gun, and the first charging gun and the second charging gun are connected to the vehicle 20 In the EVCC201 (vehicle charging controller), the EVCC201 is connected to the BMS202 (power controller) and the power supply module 203 , and the power supply module 203 is connected to the charging connection detection module 204 through the relay 205 . Among them, the switch positions of switches S1 and S3 corresponding to the first power supply control device and the second power supply control device are respectively 12V voltage and floating terminal, and resistors R3 and R4 are used for charging and connecting the output voltage of the detection module to form a voltage divider, so that the vehicle can detect To connect with the first charging gun and the second charging gun, CP, CP' represent the control guide line, PP, PP' represent the connection detection line, PE and PE' are the connection grounding line.

As shown in Figure 3, the main working methods and workflow of the charging device to charge the vehicle are as follows:

(1) S01 is the standby stage of the charging pile;

(2) S02 is for the operator to set the charging mode on the charging pile to "one car with two guns" mode;

(3) S03 is for the charging pile to set the first charging gun as the master gun and the second charging gun as the slave gun according to the charging mode. S2 is closed.

The actions of the first switch S1 , the second switch S2 and the third switch S3 can be controlled by the control module.

(4) S04 continuously detects whether the detection point A (equivalent to the above-mentioned first voltage detection point) is 9V voltage, and if so, it is determined that the main gun is connected to the vehicle.

Wherein, the control module can determine whether the main gun is connected to the vehicle according to the voltage of the detection point A detected by the first SECC.

(5) S05 is for the charging pile to confirm that the main gun is connected to the vehicle to start charging, and start to output a PWM signal with a 5% duty cycle to communicate with the vehicle to notify the vehicle that the main gun is successfully connected.

(6) S06 is to continuously detect the voltage of the detection point B (equivalent to the above-mentioned second voltage detection point), when the detection point B detects the 9V PWM signal, it is confirmed that the slave gun is connected to the vehicle, and the second SECC receives a signal from the first When the "dual gun mode" customized information sent by SECC (the customized information of each charging gun should be different), it can be identified according to the information whether the slave gun and the master gun are inserted into a vehicle at the same time;

The second charging gun or the second SECC can continuously detect the voltage of the detection point B, and the control module can determine whether the slave gun is connected to the vehicle according to the voltage of the detection point B. At the same time, the control module can also identify whether the slave gun is connected according to the information. Inserted into a car at the same time as the main gun.

(7) S07 detects that the two guns are not plugged into the same car at the same time, and the charging pile is not allowed to charge;

(8) S08 is to turn on the charging pile control switch S2 after detecting that the dual guns are inserted into the same vehicle at the same time, and cut off the signal line between the second SECC and the vehicle EVCC;

(9) S09 is to continuously detect the voltage of the detection point A. Since there are some resistances (not shown) in the circuit, when the voltage decreases and changes to 6V, it is confirmed that the vehicle is ready for charging;

(10) After the vehicle is ready in S10, the charging pile starts to perform insulation detection and pre-charging, and starts to charge the vehicle after the pre-charging is completed. During the charging process, only the main gun communicates with the vehicle EVCC, the output power of the main gun and the auxiliary gun is equally divided, and the charging is carried out according to the process specified in ISO15118, until the charging conditions are reached, and the charging process is exited.

As an embodiment, the charging device further includes a third charging gun and a fourth charging gun, the charging pile further includes a third charging controller and a fourth charging controller, and the control module is connected to the third charging controller and the fourth charging controller , the third charging controller is connected to the third charging gun, and the fourth charging controller is connected to the fourth charging gun;

The control module sets the third charging gun as the second master gun according to the charging mode, and sets the fourth charging gun as the second slave gun;

When the control module detects that the voltage of the third voltage detection point is the fourth preset voltage through the third charging controller, it determines that the second main gun is connected to the second vehicle, and controls the second main gun to the second vehicle through the third charging controller. send communications;

When the control module detects that the voltage of the fourth voltage detection point is the fifth preset voltage through the fourth charging gun, it is determined that the second slave gun is connected to the second vehicle;

The control module determines that the second master gun and the second slave gun are connected to the same vehicle, and when the third charging controller detects that the voltage of the third voltage detection point is the sixth preset voltage, the second master gun and the second slave gun are used to connect the second master gun and the second slave gun. Two vehicles are charged.

Among them, as shown in FIG. 4 , the charging pile includes a first SECC102, a first power supply control device 111, a switch S1, a resistor R1, a resistor R3, a second SECC103, a second power supply control device 112, a switch S2, a resistor R2, and a resistor R4 and switch S3, the first power supply control device 111 is connected to the switching end of the switch S1, the first end of the resistor R3, the ground end and the first charging gun (not shown), the second end of the resistor R3 is connected to the first charging gun, the switch The control end of S1 can be connected to the control module, the other end of the switch S1 is connected to the first end of the resistor R1, the second end of the resistor R1 is connected to the first SECC102 and the first charging gun, and the second end of the resistor R1 is connected to the first charging gun There is a first voltage detection point A between them, the first SECC102 is connected to the ground terminal and the first charging gun, and the second power supply control device 112 is connected to the switching terminal of the switch S3, the first terminal of the resistor R4, the ground terminal and the second charging gun. (not shown), the second end of the resistor R4 is connected to the second charging gun, the control end of the switch S3 can be connected to the control module, the other end of the switch S3 is connected to the first end of the resistor R2, and the second end of the resistor R2 is connected to the first end of the resistor R2. Two SECC103, the first end of the switch S2, the second end of the switch S2 is connected to the second charging gun, the second SECC103 is connected to the ground terminal and the second charging gun, there is a second charging gun between the second end of the switch S2 and the second charging gun Two voltage detection points B, the first charging gun and the second charging gun are connected to the first EVCC 211 in the first vehicle 21 , the first EVCC 211 is connected to the first BMS 212 and the first power supply module 213 , and the first power supply module 213 passes through the first relay 215 The first charging connection detection module 214 is connected. The charging pile 10 further includes a third power supply control device 131, a switch S4, a resistor R5, a resistor R6, a third SECC122, a fourth power supply control device 132, a switch S5, a switch S6, a resistor R7, a fourth SECC123, a resistor R8, and a third The power supply control device 131 is connected to the switching terminal of the switch S4, the first terminal of the resistor R7, the ground terminal and the third charging gun (not shown), the second terminal of the resistor R7 is connected to the third charging gun, and the other end of the switch S4 is connected to the resistor The first end of R5, the second end of the resistor R5 is connected to the third SECC122 and the third charging gun, a third voltage detection point C is provided between the second end of the resistor R5 and the first charging gun, and the third SECC122 is connected to the ground terminal And the third charging gun, the fourth power supply control device 132 is connected to the switching end of the switch S6, the first end of the resistor R8, the ground end and the fourth charging gun (not shown), and the second end of the resistor R8 is connected to the fourth charging gun , the other end of the switch S6 is connected to the first end of the resistor R6, the second end of the resistor R6 is connected to the fourth SECC123, the first end of the switch S5, the second end of the switch S5 is connected to the fourth charging gun, and the fourth SECC123 is connected to the ground terminal and the fourth charging gun, there is a fourth voltage detection point D between the second end of the switch S5 and the fourth charging gun, the third charging gun and the fourth charging gun are connected to the second EVCC221 in the second vehicle 22, the second The EVCC 221 is connected to the second BMS 222 and the second power supply module 223 , and the second power supply module 223 is connected to the second charging connection detection module 224 through the second relay 225 .

In this embodiment, the charging pile is equipped with 4 charging guns, the first SECC102 is connected to the first charging gun (the first master gun), the second SECC103 is connected to the second charging gun (the first slave gun), the first master gun and the first The slave gun is connected to the first EVCC211 of the first vehicle, the third SECC123 is connected to the third charging gun (the second master gun), the fourth SECC123 is connected to the fourth charging gun (the second slave gun), the second master gun and the second slave gun Connect the second EVCC221 of the second vehicle.

In this application scenario, the charging pile must detect whether the paired master gun and slave gun are connected to the same EVCC at the same time through the custom information of the master gun. If no detection is performed, when two vehicles are charging with dual guns at the same time, the pairing of the master gun and the slave gun is incorrect (that is, the first master gun and the second slave gun are connected to the same vehicle, and the second master gun and the first slave gun are connected. Another car), at this time only the voltage is detected from the gun, the charging pile will judge that the four guns are connected, and the charging pile starts to output energy. Since the voltages of the power batteries of the two vehicles are not equal, the charging voltages required by the two vehicles are not equal. The output voltages of the two charging guns on the same car are not equal, which is likely to cause sintering of the contactors on the charging circuit. Therefore, the charging pile must detect whether the paired master gun and slave gun are connected to the same EVCC at the same time through the custom information of the master gun.

In this embodiment, the first master gun and the first slave gun can be controlled to charge the first vehicle when the following three conditions are met: The first condition is to determine the first master gun and the first The slave guns are all connected to the vehicle. The second condition is to determine that the first master gun and the first slave gun are connected to the same first vehicle. The third condition is that when the voltage at the first voltage detection point is detected as the third preset voltage, it is determined that the first vehicle is ready to be charged, and the first vehicle is charged through the first master gun and the first slave gun.

At the same time, the second master gun and the second slave gun can be controlled to charge the second vehicle when the following three conditions are met: the first condition is to determine that the second master gun and the second slave gun are both Connect with the vehicle. The second condition is to determine that the second master gun and the second slave gun are connected to the same second vehicle. The third condition is that when the voltage of the third voltage detection point is detected as the fourth preset voltage, it is determined that the second vehicle is ready to be charged, and the second vehicle is charged through the second master gun and the second slave gun.

The technical effect of this embodiment is that the same charging pile can be used to charge two vehicles, and at the same time, when an error occurs in the connection between the charging gun and the vehicle, the output voltages of the two charging guns on the same vehicle are not equal, which is likely to cause charging. The contactor on the circuit is sintered, which improves the safety of the charging process.

The second embodiment of the present application provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium. As shown in FIG. 5 , the computer program is executed by a processor to perform the following steps:

Step S101. Set the first charging gun as the first master gun according to the charging mode, and set the second charging gun as the first slave gun.

Step S102. When it is detected that the voltage of the first voltage detection point is the first preset voltage, it is determined that the first main gun is connected to the first vehicle, and the first main gun is controlled to send communication information to the first vehicle.

Step S103. When it is detected that the voltage of the second voltage detection point is the second preset voltage, it is determined that the first slave gun is connected to the first vehicle.

Step S104. Determine that the first master gun and the first slave gun are connected to the same vehicle, and when the voltage at the first voltage detection point is detected as the third preset voltage, make the first master gun and the first slave gun charge the first vehicle.

Wherein, it is determined that the first master gun and the first slave gun are connected to the same vehicle, including any of the following methods:

Manner 1, when the control module detects that the second charging controller receives the communication information sent by the first charging controller, it determines that the first master gun and the first slave gun are connected to the same vehicle.

In the second mode, when the control module detects that both the first charging controller and the second charging controller have received the communication information sent by the other party, it is determined that the first master gun and the first slave gun are connected to the same vehicle.

The charging pile also includes a first switch and a first resistor, the first switch is connected to the control module, a first control guide wire is arranged between the first charging controller and the first charging gun, and the first switch and the first resistor are both arranged at On the first control guide line, when the control module controls the first switch to be turned on, a voltage divider is formed on the first resistor;

A second control guide line is arranged between the second charging controller and the second charging gun, and the second voltage detection point is located on the second control guide line;

The control module controls the first switch to switch between on and off, and determines that the first master gun and the first slave gun are connected to the same vehicle when detecting that the voltage of the second voltage detection point changes with the state of the first switch .

After step S104, the method further includes: when the control module controls the first master gun and the first slave gun to charge the first vehicle, communicates with the first vehicle through the first master gun, and conducts communication between the first master gun and the first vehicle according to the communication result. Distributed from the output power of the gun.

For the specific content of the above steps, reference may be made to the description of Embodiment 1, and details are not repeated here.

The third embodiment of the present application provides a vehicle. The vehicle is connected to a charging device. As shown in FIG. 6 , the charging device includes: a first charging pile, a first charging gun 104 and a second charging gun 105 , and the first charging pile includes a first charging pile. The control module 106, the first charging controller 102 and the second charging controller 103, the first control module 106 is connected to the first charging controller 102 and the second charging controller 103, and the first charging controller 102 is connected to the first charging gun 104 , the second charging controller 103 is connected to the second charging gun 105; the first control module 106 sets the first charging gun 104 as the first master gun according to the charging mode, and sets the second charging gun 105 as the first slave gun;

the vehicle includes a first vehicle charging controller 211;

When the first vehicle charging controller 211 communicates with the first control module 106 and determines that the first charging pile satisfies the first charging condition, it sends a charging instruction to the first control module 106 through the first master gun, and the first master gun and the first slave The gun charges the vehicle, wherein the first charging condition is that the first master gun and the first slave gun are connected to the same vehicle.

In this embodiment, when dual-gun charging is performed, when the first vehicle charging controller detects that the first master gun and the first slave gun are connected to the vehicle, it only needs to communicate with the first master gun, and the first vehicle charging controller only needs to communicate with the first master gun. The charging command sent by the gun can be an output power distribution command, so that the first master gun and the first slave gun output corresponding power. Wherein, the first main gun may be integrated with related modules for receiving and executing charging instructions.

The technical effect of this embodiment is that: in the prior art, when dual-gun charging is performed, two EVCCs need to be configured inside the vehicle to control the charging of the corresponding charging guns, and respectively carry out CAN communication with the battery management system BMS, using two EVCCs. resulting in higher vehicle costs. In this embodiment, two charging guns are connected through one EVCC in the vehicle, and the two charging guns can simultaneously charge the vehicle by communicating with the main gun, thereby reducing the cost of the entire vehicle.

As an embodiment, as shown in FIG. 7 , the charging device further includes: a second charging pile, a third charging gun 107 and a fourth charging gun 108 , and the second charging pile includes a second control module 109 and a third charging controller 122 and the fourth charging controller 123, the second control module 109 is connected to the third charging controller 122 and the fourth charging controller 123, the third charging controller 122 is connected to the third charging gun 107, and the fourth charging controller 123 is connected to the third charging controller 123. Four charging guns 108; the second control module 109 sets the third charging gun 107 as the second master gun according to the charging mode, and sets the fourth charging gun 108 as the second slave gun;

the vehicle includes a second vehicle charging controller 221;

When the second vehicle charging controller 221 communicates with the second control module 109 and determines that the second charging pile satisfies the second charging condition, it sends a charging instruction to the second control module 109 through the second master gun, and sends a charging command through the second master gun and the second slave gun. The gun charges the vehicle, wherein the second charging condition is that the second master gun and the second slave gun are connected to the same vehicle.

Among them, as shown in FIG. 8 , the first charging pile includes a first SECC102, a first power supply control device 111, a switch S1, a resistor R1, a resistor R3, a second SECC103, a second power supply control device 112, a switch S2, a resistor R2, Resistor R4 and switch S3, the first power supply control device 111 is connected to the switching terminal of switch S1, the first terminal of resistor R3, the ground terminal and the first charging gun (not shown), and the second terminal of resistor R3 is connected to the first charging gun , the control end of the switch S1 can be connected to the control module, the other end of the switch S1 is connected to the first end of the resistor R1, the second end of the resistor R1 is connected to the first SECC102 and the first charging gun, and the second end of the resistor R1 is connected to the first end of the resistor R1. A first voltage detection point A is set between the charging guns, and the first SECC102 is connected to the ground terminal and the first charging gun. The second power supply control device 112 is connected to the switching terminal of the switch S3, the first terminal of the resistor R4, the ground terminal and the second charging gun (not shown), the second terminal of the resistor R4 is connected to the second charging gun, and the control terminal of the switch S3 It can be connected to the control module, the other end of the switch S3 is connected to the first end of the resistor R2, the second end of the resistor R2 is connected to the second SECC103, the first end of the switch S2, the second end of the switch S2 is connected to the second charging gun, and the second end of the switch S2 is connected to the second charging gun. The two SECC103 are connected to the ground terminal and the second charging gun, a second voltage detection point B is set between the second end of the switch S2 and the second charging gun, the first charging gun and the second charging gun are connected to the first EVCC211 in the vehicle, The first EVCC211 is connected to the BMS202.

The second charging pile includes a third power supply control device 131, a switch S4, a resistor R5, a resistor R6, a third SECC122, a fourth power supply control device 132, a switch S5, a switch S6, a resistor R7, a fourth SECC123, a resistor R8, a third The power supply control device 131 is connected to the switching terminal of the switch S4, the first terminal of the resistor R7, the ground terminal and the third charging gun (not shown), the second terminal of the resistor R7 is connected to the third charging gun, and the other end of the switch S4 is connected to the resistor The first end of R5, the second end of the resistor R5 is connected to the third SECC122 and the third charging gun, a third voltage detection point C is provided between the second end of the resistor R5 and the first charging gun, and the third SECC122 is connected to the ground terminal And the third charging gun. The fourth power supply control device 132 is connected to the switching end of the switch S6, the first end of the resistor R8, the ground end and the fourth charging gun (not shown), the second end of the resistor R8 is connected to the fourth charging gun, and the other end of the switch S6 Connect the first end of the resistor R6, the second end of the resistor R6 is connected to the fourth SECC123, the first end of the switch S5, the second end of the switch S5 is connected to the fourth charging gun, the fourth SECC123 is connected to the ground terminal and the fourth charging gun, A fourth voltage detection point D is set between the second end of the switch S5 and the fourth charging gun. The third charging gun and the fourth charging gun are connected to the second EVCC221 in the vehicle, and the second EVCC221 is connected to the BMS202 and the power supply module 203 to supply power. The module 203 is connected to the charging connection detection module 204 through the second relay 205 .

In this embodiment, the first charging pile is equipped with two charging guns, the first SECC102 is connected to the first charging gun (the first master gun), the second SECC103 is connected to the second charging gun (the first slave gun), the first master gun and the The first slave gun is connected to the first EVCC211 of the vehicle, the second charging pile is equipped with 2 charging guns, the third SECC123 is connected to the third charging gun (second master gun), and the fourth SECC123 is connected to the fourth charging gun (second slave gun) , the second master gun and the second slave gun are connected to the second EVCC221 of the vehicle.

The technical effect of this embodiment is that: since the charging pile can identify the wrong gun inserted and the charging mode setting is wrong, and avoid the problems of wrong charging and inability to charge, it can realize the charging of the vehicle with multiple guns. At the same time, another advantage is that the vehicle is charged. Using a small number of EVCCs to complete multi-gun charging, the cost is lower, and the charging capacity and charging speed are further improved.

The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The recorded technical solutions are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the application, and should be included in the application. within the scope of protection.

Claims (20)

1. A charging device, characterized in that the charging device includes: a charging pile, a first charging gun and a second charging gun, the charging pile includes a control module, a first charging controller and a second charging controller, the The control module is connected to the first charging controller and the second charging controller, the first charging controller is connected to the first charging gun, and the second charging controller is connected to the second charging gun;

   The control module sets the first charging gun as the first master gun according to the charging mode, and sets the second charging gun as the first slave gun;

   Determine that the first main gun is connected to the first vehicle, and control the first main gun to send communication information to the first vehicle through the first charging controller;

   determining that the first slave gun is connected to the first vehicle;

   The control module determines that the first master gun and the first slave gun are connected to the same vehicle, and when the first charging controller detects that the voltage of the first voltage detection point is a third preset voltage, the A master gun and the first slave gun charge the first vehicle.
2. The charging device according to claim 1, wherein the control module determines that the first main gun is connected to the A vehicle connection.
3. The charging device according to claim 2, wherein the control module determines that the first slave gun and the first slave gun are connected to the first slave gun when the second voltage detection point voltage is detected by the second charging gun as the second preset voltage. vehicle connection.
4. The charging device according to any one of claims 1-3, wherein when the control module detects that the second charging controller receives the communication information sent by the first charging controller, it determines the The first master gun and the first slave gun are connected to the same vehicle.
5. The charging device according to any one of claims 1-3, wherein when the control module detects that the first charging controller receives the communication information sent by the second charging controller, it determines the The first master gun and the first slave gun are connected to the same vehicle.
6. The charging device according to any one of claims 1-3, wherein when the control module detects that both the first charging controller and the second charging controller have received the communication information sent by the other party, It is determined that the first master gun and the first slave gun are connected to the same vehicle.
7. The charging device according to any one of claims 1-3, wherein the charging pile further comprises a first power supply control device, a second power supply control device, a first switch, a third switch, a first resistor, and a first power supply control device. Two resistors, the first power supply control device is connected to the first end of the first switch, the control end of the first switch is connected to the control module, and the second end of the first switch is connected to the first switch The first end of the resistor, the first common contact formed by one end of the first charging controller and the second end of the first resistor is connected to the first charging gun through a first control lead wire, and the first The voltage detection point is located on the first control guide line, and when the control module controls the first switch to be turned on, the voltage output by the first power supply control device forms a voltage divider on the first resistor;

   The second power supply control device is connected to the first end of the third switch, the control end of the third switch is connected to the control module, and the second end of the third switch is connected to the first end of the second resistor. One end, the second common contact formed by one end of the second charging controller and the second end of the second resistor is connected to the second charging gun through the second control guide wire, and the second voltage detection point on the second control guideline.
8. The charging device according to claim 7, wherein the control module controls the first switch to switch between on and off, and detects that the voltage of the second voltage detection point follows the voltage of the second voltage detection point. When the state of the first switch is changed, it is determined that the first master gun and the first slave gun are connected to the same vehicle.
9. The charging device according to claim 8, wherein the charging pile further comprises a second switch, and the second switch is arranged between the second common contact and the second voltage detection point;

   The second switch is in a normally closed state, and when the control module determines that the first master gun and the first slave gun are connected to the same vehicle, the control module controls the second switch to be disconnected.
10. The charging device according to any one of claims 1-9, characterized in that, when the control module controls the first master gun and the first slave gun to charge the first vehicle, through the The first master gun communicates with the first vehicle, and distributes the output power of the first master gun and the first slave gun according to the communication result.
11. The charging device according to any one of claims 1-9, wherein the charging device further comprises a third charging gun and a fourth charging gun, and the charging pile further comprises a third charging controller and a fourth charging a controller, the control module is connected to the third charging controller and the fourth charging controller, the third charging controller is connected to the third charging gun, and the fourth charging controller is connected to the Four charging guns;

    The control module sets the third charging gun as the second master gun according to the charging mode, and sets the fourth charging gun as the second slave gun;

    Determine that the second main gun is connected to the second vehicle, and control the second main gun to send communication information to the second vehicle through the third charging controller;

    determining that the second slave gun is connected to a second vehicle;

    The control module determines that the second master gun and the second slave gun are connected to the same vehicle, and when the third charging controller detects that the voltage of the third voltage detection point is the sixth preset voltage, the Two master guns and the second slave gun charge the second vehicle.
12. 11. The charging device of claim 11, wherein the control module determines that the second main gun is connected to the Two vehicle connections.
13. 13. The charging device according to claim 12, wherein when the control module detects that the voltage of the fourth voltage detection point is the fifth preset voltage through the fourth charging gun, the control module determines that the second slave gun is the same as the second slave gun. vehicle connection.
14. A computer-readable storage medium storing a computer program, wherein the computer program is executed by a processor of the following steps:

    Setting the first charging gun as the first master gun according to the charging mode, and setting the second charging gun as the first slave gun;

    determining that the first main gun is connected to the first vehicle, and controlling the first main gun to send communication information to the first vehicle;

    determining that the first slave gun is connected to the first vehicle;

    When it is determined that the first master gun and the first slave gun are connected to the same vehicle, and when it is detected that the voltage of the first voltage detection point is the third preset voltage, the first master gun and the first slave gun are used to connect to the same vehicle. The first vehicle is charged.
15. 15. The computer-readable storage medium of claim 14, wherein it is determined that the first main gun is connected to the first vehicle when it is detected that the voltage of the first voltage detection point is the first preset voltage.
16. 16. The computer-readable storage medium according to claim 15, wherein when it is detected that the voltage of the second voltage detection point is the second preset voltage, it is determined that the first slave gun is connected to the first vehicle.
17. The computer-readable storage medium according to any one of claims 14-16, wherein when it is detected that the second charging controller receives the communication information sent by the first charging controller, it is determined that the first main gun is connected to the The first slave gun is connected to the same vehicle.
18. The computer-readable storage medium according to any one of claims 14 to 16, wherein when it is detected that both the first charging controller and the second charging controller have received the communication information sent by the other party, it is determined that the first charging controller The master gun and the first slave gun are connected to the same vehicle.
19. A vehicle, characterized in that the vehicle is connected to a charging device, the charging device comprises: a first charging pile, a first charging gun and a second charging gun, the first charging pile comprising a first control module, a second charging gun a charging controller and a second charging controller, the first control module is connected to the first charging controller and the second charging controller, the first charging controller is connected to the first charging gun, so the second charging controller is connected to the second charging gun; the first control module sets the first charging gun as the first master gun according to the charging mode, and sets the second charging gun as the first slave gun;

    the vehicle includes a first vehicle charging controller;

    When the first vehicle charging controller communicates with the first control module and determines that the first charging pile satisfies the first charging condition, it sends a charging instruction to the first control module through the first main gun, and sends a charging instruction to the first control module through the first main gun. The first master gun and the first slave gun charge the vehicle, wherein the first charging condition is that the first master gun and the first slave gun are connected to the same vehicle.
20. The vehicle according to claim 19, wherein the charging device comprises: a second charging pile, a third charging gun and a fourth charging gun, the second charging pile comprising a second control module, a third charging control module and a fourth charging controller, the second control module is connected to the third charging controller and the fourth charging controller, the third charging controller is connected to the third charging gun, the fourth charging The charging controller is connected to the fourth charging gun; the second control module sets the third charging gun as the second master gun according to the charging mode, and sets the fourth charging gun as the second slave gun;

    the vehicle includes a second vehicle charge controller;

    When the second vehicle charging controller communicates with the second control module to determine that the second charging pile satisfies the second charging condition, it sends a charging instruction to the second control module through the second main gun, and sends a charging instruction to the second control module through the second charging pile. The second master gun and the second slave gun charge the vehicle, wherein the second charging condition is that the second master gun and the second slave gun are connected to the same vehicle.

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