Automatic detection charger, system and method

Abstract

The invention provides an automatic detection charger, system and method, and belongs to the field of automatic charging, the charger comprises a charging controller provided with a plurality of communication interfaces and a plurality of charging guns in one-to-one communication connection with the plurality of communication interfaces; the charging gun is used for being inserted into a charging socket of a to-be-charged vehicle, providing electric energy for the to-be-charged vehicle and transmitting message data sent by the to-be-charged vehicle to the charging controller. The charging controller is used for detecting whether each communication interface can receive the message data or not so as to judge whether each charging gun is connected to the to-be-charged vehicle or not and starting any one or all of the charging guns connected to the to-be-charged vehicle according to the message data. According to the invention, the technical problem that the charging process fails due to the risk that the normal communication between the charger and the vehicle is affected by increasing the actively sent detection signal in the prior art is effectively solved.

Description

Technical Field

[0001] The present invention relates to the field of automatic charging technology, and in particular to an automatic detection charger, system and method. Background Art

[0002] With the popularity of electric vehicles, especially the improvement of power battery technology, the charging speed of a single charging port can no longer meet the market demand. Many vehicle manufacturers have launched vehicles with multiple charging ports, generally two charging ports, but also three or four charging ports, or more. This requires the charger to be equipped with multiple charging guns to charge the same vehicle at the same time.

[0003] In order to meet the problem of charging multiple charging ports on the same vehicle at the same time, the current common practice is to configure a charger with multiple charging guns and insert multiple charging guns of the charger into the charging port of the same vehicle at the same time, and then manually operate the operation screen of the charger to select a single-gun charging mode or a multi-gun simultaneous charging mode. This manual operation is inconvenient and unfriendly. Another way is to use the CAN communication buses on multiple charging ports of the vehicle to be connected in parallel, and after the charging gun of the charger is inserted into the charging seat of the vehicle, the CAN bus of the charger and the vehicle communication is physically connected together, and then the manufacturer's customized active detection message signal is sent on the CAN bus on the first charging gun inserted first, and itself is used as the main charging gun. If the controller of the charging gun inserted later can receive the detection signal, it will be used as a slave gun, and it needs to work with the master gun to output voltage and current to charge the vehicle at the same time. According to the national standard requirements for charging communication between chargers and vehicles, message data outside the standard is not allowed on the CAN communication line between chargers and vehicles. This manufacturer-defined detection signal message has the risk of affecting the normal communication between the charger and the vehicle, resulting in failure of the charging process and inability to charge the vehicle normally. Summary of the invention

[0004] In view of this, it is necessary to provide an automatic detection charger, system and method to solve the technical problem that the prior art increases the risk of actively sending detection signals, thereby affecting the normal communication between the charger and the vehicle and causing the charging process to fail.

[0005] In order to solve the above technical problems, the present invention provides an automatic detection charger, comprising: A charging controller having a plurality of communication interfaces and a plurality of charging guns connected to the plurality of communication interfaces in a one-to-one communication manner; The charging gun is used to be inserted into the charging socket of the vehicle to be charged, provide power to the vehicle to be charged and transmit message data sent by the vehicle to be charged to the charging controller; The charging controller is used to detect whether each of the communication interfaces can receive the message data, so as to determine whether each charging gun is connected to the vehicle to be charged, and to start any one or all of the charging guns connected to the vehicle to be charged according to the message data.

[0006] In a possible implementation, each of the charging guns is equipped with a cable, and the cable includes: a first CAN communication line; The charging gun is communicatively connected to the communication interface via the first CAN communication line.

[0007] In a possible implementation, the message data includes: the total required current of the vehicle to be charged; When the charging gun is inserted into a charging socket, the first CAN communication line is connected to the BMS of the vehicle to be charged through the charging socket to transmit the message data to the charging controller.

[0008] In a possible implementation, the automatic detection charger further includes: a housing; The charging controller is arranged inside the housing; The plurality of charging guns are arranged on the outer surface of the shell.

[0009] In a possible implementation, the automatic detection charger further includes: a billing module; The billing module is in communication with the charging controller and is used to send a control signal to the charging controller after the user pays the fee, thereby starting the charging gun to charge.

[0010] The present invention also provides an automatic detection charging system, comprising: An automatic detection charger as described in any of the above device items; A vehicle to be charged, including a BMS and a plurality of charging sockets communicating with the BMS; BMS is used to generate message data including the total demand current of the vehicles to be charged The charging socket is electrically and communicatively connected to the charging gun in the automatic detection charger, and is used to receive the electric energy provided by the charging gun, and transmit the message data to the charging controller through the charging gun.

[0011] In a possible implementation, the plurality of charging sockets are connected in parallel with each other and are communicatively connected to the BMS via the same CAN bus.

[0012] In a possible implementation, the charging socket is communicatively connected to a first CAN communication line in the charging gun via the CAN bus to transmit the message data to the charging controller.

[0013] The present invention also provides an automatic detection charging method, which is applied to a charging controller of an automatic detection charger as described in any one of the above-mentioned device items, comprising: After the plurality of charging guns are connected to the plurality of charging sockets one by one, detecting whether the charging module sends a control signal; If yes, set any charging gun as the main charging gun; Start the communication interface connected to the main charging gun to receive the message data sent by the BMS, and detect whether the communication interface connected to other charging guns other than the main charging gun also receives the message data; Determine a single-gun charging mode or a multi-gun charging mode according to the message data; If it is determined to be a single-charger charging mode, the main charging gun is started to charge the vehicle to be charged; If it is determined to be a multi-charge gun mode, all other charging guns that have also received the message data are set as auxiliary charging guns, and the main charging gun and the auxiliary charging guns are started at the same time to charge the vehicle to be charged.

[0014] In a possible implementation, determining the single-gun charging mode or the multi-gun charging mode according to the message data includes: Obtaining the total demand current in the message data; Determining whether the total required current is greater than the rated output of the main charging gun; If not, it is determined to be single-gun charging mode; If yes, it is determined to be a multi-gun charging mode.

[0015] The beneficial effect of the present invention is that the automatic detection charger provided by the present invention is configured with multiple charging guns, wherein the multiple charging guns are inserted into multiple charging sockets of the same vehicle. When the vehicle is in a single-gun charging scenario, any charging port can be used alone to connect to the charger for single-gun charging. In the case of multiple-gun charging, when one of the guns is started to charge by the user, the charger controller uses the gun as the main charging gun, which is responsible for information exchange and charging status control with the vehicle. At the same time, the charging controller also detects whether message data is received on the communication interface connected to other charging guns, so that other charging guns that can monitor the message data of the communication between the main gun and the vehicle are used as auxiliary slave guns of the main charging gun, and follow the main gun to automatically start charging. Therefore, when the user operates the charger to start charging, there is no need to select and switch the single-gun or multi-gun charging mode, and there is no need to increase the actively sent detection signal. It can detect whether the multiple charging guns of the charger are inserted into multiple charging sockets of the same vehicle, which effectively solves the technical problem that the risk of affecting the normal communication between the charger and the vehicle due to the increase of the actively sent detection signal in the prior art, resulting in the failure of the charging process. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 A structural schematic diagram of an embodiment of an automatic detection charging system provided by the present invention; Figure 2 A schematic diagram of a flow chart of an embodiment of an automatic detection charging method provided by the present invention; Figure 3 for Figure 2 FIG. 1 is a flow chart of an embodiment of step S204 in FIG. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0018] In the description of the embodiments of the present invention, unless otherwise specified, "multiple" means two or more than two. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" may mean: A exists alone, A and B exist at the same time, and B exists alone.

[0019] The descriptions of "first", "second", etc. involved in the embodiments of the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the technical features defined as "first" and "second" may explicitly or implicitly include at least one of the features.

[0020] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] Before presenting the embodiments, the following terms are explained.

[0022] BMS: Battery Management System, a battery management system, is a system specifically used to monitor battery status, protect and optimize battery performance.

[0023] Handshake interaction: refers to the process in which the two parties reach agreement on parameters such as information transmission rate, alphabet, parity check, interrupt process, and other protocol characteristics through a series of signal exchanges after the communication circuit is established and before information transmission begins.

[0024] like Figure 1 The present invention provides an automatic detection charging system 10, comprising: The automatic detection charger 110 includes a charging controller 1101 provided with a plurality of communication interfaces and a plurality of charging guns 1102 which are communicatively connected to the plurality of communication interfaces one by one; The charging gun is used to be inserted into the charging socket of the vehicle to be charged, provide power to the vehicle to be charged and transmit message data sent by the vehicle to be charged to the charging controller; In a possible implementation, each charging gun 1102 is equipped with a cable, and the cable includes: a first CAN communication line 1103; The charging gun 1102 is communicatively connected to the charging socket 1201 and the communication interface via the first CAN communication line 1103 .

[0025] The charging controller 1101 is used to detect whether each communication interface can receive the message data, so as to determine whether each charging gun 1102 is connected to the vehicle 120 to be charged, and start any one or all of the charging guns 1102 connected to the vehicle 120 to be charged according to the message data; A vehicle to be charged 120 includes a BMS 1201 and a plurality of charging sockets 1202 that are communicatively connected to the BMS 1201; The BMS 1201 is used to generate message data including the total demand current of the vehicle 120 to be charged; The charging socket 1202 is electrically and communicatively connected to the charging gun 1102 in the automatic detection charger 110 , and is used to receive the electric energy provided by the charging gun 1102 , and transmit the message data to the charging controller 1101 through the charging gun 1102 .

[0026] In one possible implementation, several charging sockets 1202 are connected in parallel with each other and are communicatively connected to the BMS 1201 through the same CAN bus 1203 . The charging sockets 1202 are also communicatively connected to the first CAN communication line 1103 in the charging gun 1102 through the CAN bus 1203 to transmit message data to the charging controller 1101 .

[0027] Specifically, Figure 1The connection diagram of the charger 110 and the vehicle 120 when charging is shown. The charger is equipped with multiple guns, and multiple charging guns are inserted into multiple charging sockets of the same vehicle. According to the national standard for communication between the charger and the vehicle when charging, the charger communicates with the vehicle using the CAN bus. Each charging gun cable of the charger contains a CAN communication cable and is connected to an independent CAN interface of the charger. The CAN buses on the multiple charging sockets of the vehicle are connected in parallel and connected to the CAN communication interface of the BMS, so that in the scenario of single-gun charging, the vehicle can use any charging port to connect to the charger for single-gun charging.

[0028] When the vehicle is charged with multiple guns, the multiple charging guns of the charger are inserted into the power socket of the vehicle. Since the CAN bus of the vehicle socket is connected together, the independent CAN bus of each gun of the charger is also physically connected and connected together on the vehicle side. Since only one charging gun's CAN interface can initiate a communication connection to communicate with the vehicle, perform handshake interaction of charging information, and charge control. In this way, when the user operates the charger to start charging, he can directly start any of the charging guns inserted into the vehicle for charging, without selecting and switching between single-gun or multi-gun charging modes. When one of the guns is started to charge by the user, the charger controller uses the gun as the main charging gun, responsible for information exchange and charging status control with the vehicle. Since the CAN buses of other charging guns plugged into the same vehicle are connected together at the vehicle end, when the main gun that is started first communicates with the vehicle's BMS, the CAN interfaces of the controllers of other charging guns plugged into the same vehicle can monitor the communication message data between the main gun and the BMS. In this way, the charging controller of the charger regards other charging guns that can monitor the communication message data between the main gun and the BMS as auxiliary slave guns of the main charging gun, and automatically starts charging following the main gun, outputting voltage and current to charge the vehicle, so as to achieve the purpose of high-current charging, reduce charging time, and improve charging efficiency.

[0029] In short, when users are actually charging, whether they are using a single charger or multiple chargers to charge a vehicle, they do not need to go through tedious operations to select the charging mode (single charger mode or multi-charger mode), and can directly start any charger that has been inserted into the vehicle to start charging. When the multi-charger mode is needed, the charger can automatically identify that multiple chargers of the same charger are inserted into multiple sockets of the same vehicle, automatically allocate the main charger and the slave charger, and the slave charger automatically follows the main charger to start charging. Users do not need to select the charging mode or manually start the slave charger, and the charger's charging controller automatically recognizes the multi-charger mode charging without actively sending a detection signal.

[0030] Compared with the prior art, the automatic detection charger provided by the present invention is equipped with multiple charging guns, wherein the multiple charging guns are inserted into multiple charging sockets of the same vehicle. When the vehicle is in a single-gun charging scenario, any charging port can be used alone to connect to the charger for single-gun charging. In the case of multiple-gun charging, when one of the guns is started to charge by the user, the charger controller uses the gun as the main charging gun, responsible for information exchange and charging status control with the vehicle. At the same time, the charging controller also detects whether the communication interface connected to the other charging guns has received message data, so that other charging guns that can monitor the message data of the communication between the main gun and the vehicle are used as auxiliary slave guns of the main charging gun, and follow the main gun to automatically start charging. Therefore, when the user operates the charger to start charging, there is no need to select and switch the single-gun or multi-gun charging mode, nor to increase the actively sent detection signal, and it can be detected whether the multiple charging guns of the charger are inserted into multiple charging sockets of the same vehicle, which effectively solves the technical problem that the prior art affects the risk of normal communication between the charger and the vehicle due to the increase of the actively sent detection signal, resulting in the failure of the charging process.

[0031] In a possible implementation, the charger 110 further includes: a housing 1104; The charging controller 1101 is disposed inside the housing 1104; A plurality of charging guns 1102 are disposed on the outer surface of the housing 1104 .

[0032] In a possible implementation, the charger 110 further includes: a billing module; The billing module is in communication with the charging controller 1101 and is used to send a control signal to the charging controller 1101 after the user pays the fee, thereby starting the charging gun 1102 for charging.

[0033] Furthermore, the charging module may support starting charging by swiping a card, scanning a code or other methods.

[0034] like Figure 2 The present invention also provides an automatic detection charging method, which is applied to the charging controller 1101 of the automatic detection charger 110 as described in any one of the above-mentioned device items, including: Step S201: After a plurality of charging guns are connected to a plurality of charging sockets one by one, detecting whether a charging module sends a control signal; Step S202: If yes, set any charging gun as the main charging gun; Step S203: Start the communication interface connected to the main charging gun to receive the message data sent by the BMS, and detect whether the communication interface connected to other charging guns other than the main charging gun also receives the message data; Step S204, determining a single-gun charging mode or a multi-gun charging mode according to the message data; Step S205: If the single-charger charging mode is determined, the main charging gun is started to charge the vehicle to be charged; Step S206: If it is determined to be a multi-charger charging mode, all other charging guns that have also received the message data are set as auxiliary charging guns, and the main charging gun and the auxiliary charging guns are started at the same time to charge the vehicle to be charged.

[0035] Furthermore, the charging controller 1101 will evenly distribute the total current required for the interaction between the main charging gun and the vehicle BMS1201 to the master gun and the slave gun, and output the voltage and current required by the vehicle 120 together, meeting the high-power charging solution for simultaneous charging of multiple charging ports of the vehicle.

[0036] like Figure 3 In a possible implementation, step S204 includes: Step S301, obtaining the total demand current in the message data; Step S302: determine whether the total required current is greater than the rated output of the main charging gun; Step S303: If not, determine to be in single-gun charging mode; Step S304: If yes, determine that it is a multi-gun charging mode.

[0037] Those skilled in the art will appreciate that all or part of the processes of the above-mentioned embodiments can be implemented by instructing related hardware (such as a processor, a controller, etc.) through a computer program, and the computer program can be stored in a computer-readable storage medium, wherein the computer-readable storage medium is a disk, an optical disk, a read-only storage memory, or a random access memory, etc.

[0038] The above is a detailed introduction to an automatic detection charger, system and method provided by the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. An automatic detection charger, characterized in that: include: A charging controller having a plurality of communication interfaces and a plurality of charging guns connected to the plurality of communication interfaces in a one-to-one communication manner; The charging gun is used to be inserted into the charging socket of the vehicle to be charged, provide power to the vehicle to be charged and transmit message data sent by the vehicle to be charged to the charging controller; The charging controller is used to detect whether each of the communication interfaces can receive the message data, so as to determine whether each charging gun is connected to the vehicle to be charged, and to start any one or all of the charging guns connected to the vehicle to be charged according to the message data.

2. The automatic detection charger according to claim 1, characterized in that: Each of the charging guns is equipped with a cable, and the cable includes: a first CAN communication line; The charging gun is communicatively connected to the charging socket and the communication interface via the first CAN communication line.

3. The automatic detection charger according to claim 2, characterized in that: The message data includes: the total demand current of the vehicle to be charged; When the charging gun is inserted into a charging socket, the first CAN communication line is connected to the BMS of the vehicle to be charged through the charging socket to transmit the message data to the charging controller.

4. The automatic detection charger according to claim 1, characterized in that: The automatic detection charger also includes: a housing; The charging controller is arranged inside the housing; The plurality of charging guns are arranged on the outer surface of the shell.

5. The automatic detection charger according to claim 1, characterized in that: The automatic detection charger also includes: a billing module; The billing module is in communication with the charging controller and is used to send a control signal to the charging controller after the user pays the fee, thereby starting the charging gun to charge.

6. An automatic detection charging system, characterized in that: include: The automatic detection charger according to any one of claims 1 to 5; A vehicle to be charged, including a BMS and a plurality of charging sockets communicating with the BMS; The BMS is used to generate message data including the total demand current of the vehicles to be charged; The charging socket is electrically and communicatively connected to the charging gun in the automatic detection charger, and is used to receive the electric energy provided by the charging gun, and transmit the message data to the charging controller through the charging gun.

7. The automatic detection and charging system according to claim 6, characterized in that: The plurality of charging sockets are connected in parallel with each other and are communicatively connected with the BMS via the same CAN bus.

8. The automatic detection and charging system according to claim 7, characterized in that: The charging socket is communicatively connected to a first CAN communication line in the charging gun via the CAN bus to transmit the message data to the charging controller.

9. An automatic detection charging method, applied to a charging controller of an automatic detection charger as claimed in any one of claims 1 to 5, characterized in that: include: After the plurality of charging guns are connected to the plurality of charging sockets one by one, detecting whether the charging module sends a control signal; If yes, set any charging gun as the main charging gun; Start the communication interface connected to the main charging gun to receive the message data sent by the BMS, and detect whether the communication interface connected to other charging guns other than the main charging gun also receives the message data; Determine a single-gun charging mode or a multi-gun charging mode according to the message data; If it is determined to be a single-charger charging mode, the main charging gun is started to charge the vehicle to be charged; If it is determined to be a multi-charge gun mode, all other charging guns that have also received the message data are set as auxiliary charging guns, and the main charging gun and the auxiliary charging guns are started at the same time to charge the vehicle to be charged.

10. The automatic detection charging method according to claim 9, characterized in that: The determining of the single-gun charging mode or the multi-gun charging mode according to the message data includes: Obtaining the total demand current in the message data; Determining whether the total required current is greater than the rated output of the main charging gun; If not, it is determined to be single-gun charging mode; If yes, it is determined to be a multi-gun charging mode.

Images