A charging device, a new energy vehicle and a charging control method

Abstract

The application discloses a charging device, a new energy vehicle and a charging control method, relates to the technical field of charging, and discloses a charging device, which comprises a control module, a plurality of charging guns and a distribution module; the distribution module is also connected with the plurality of charging guns and a battery pack. The distribution module is connected with the plurality of charging guns to form a plurality of charging branches, and each branch is controlled by the control module. The control module outputs a gating signal to the distribution module after recognizing the charging gun, and the distribution module selects the charging branch based on the gating signal, connects the battery pack to form a complete charging loop, can realize simultaneous charging of the plurality of charging guns, and can be compatible with both the national standard and the European standard charging gun, thereby improving the charging efficiency and widening the application scenarios.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of charging, in particular to a charging device, a new energy vehicle and a charging control method. BACKGROUND

[0002] With the continuous growth of the global economy and the increasing population, the reserves of traditional fossil fuels are gradually decreasing, and the problem of energy shortage is becoming increasingly prominent. New energy vehicles, as an important solution to replace traditional fuel vehicles, have attracted widespread attention in their development.

[0003] In order to cope with environmental problems and energy shortages, countries around the world have introduced relevant policies to promote the development of the new energy vehicle industry. However, new energy vehicle charging technology still faces some challenges, such as charging speed, compatibility, layout rationality, etc. Different brands and models of electric vehicles use different charging standards and interfaces, which leads to the problem of compatibility of charging piles. SUMMARY

[0004] The main purpose of the present application is to provide a charging device, a new energy vehicle and a charging control method, aiming to solve the technical problems of limited application scenarios of existing charging technology or long charging time.

[0005] To achieve the above-mentioned purpose, the present application provides a charging device, which comprises a distribution module and a control module; the control module is connected to a plurality of charging guns and the distribution module respectively; the distribution module is also connected to a plurality of charging guns and a battery pack respectively; the control module is used to identify the standard signal of the connected charging gun, convert the standard signal into a corresponding gating signal, and output it to the distribution module; the distribution module is used to select a charging gun based on the gating signal after receiving the gating signal, establish the connection between the charging gun and the battery pack to realize the charging of the battery pack.

[0006] In an embodiment, the charging device further comprises a high-voltage protection module; the distribution module is connected to the battery pack through the high-voltage protection module; the high-voltage protection module is also connected to the control module; the distribution module is used to select a charging gun based on the gating signal after receiving the gating signal, and establish the connection between the charging gun and the high-voltage protection module; the control module is also used to detect the temperature of the charging device, and output a circuit breaking signal to the high-voltage protection module when the temperature exceeds a temperature threshold; the high-voltage protection module is used to disconnect the connection between the battery pack and the distribution module after receiving the circuit breaking signal.

[0007] In an embodiment, the charging device further comprises: a first national standard socket, a second national standard socket, a first European standard socket, a second European standard socket, a first EVCC controller and a second EVCC controller; each of the national standard sockets is connected to the control module and used for connecting a national standard charging gun; the first European standard socket and the second European standard socket are connected to the control module through the first EVCC controller and the second EVCC controller respectively and used for connecting a European standard charging gun; and each of the EVCC controllers is used for establishing communication between each of the European standard sockets and the control module.

[0008] In an embodiment, the first national standard socket, the second national standard socket, the first European standard socket and the second European standard socket each comprise an NTC resistor; each of the NTC resistors is connected to the control module; and the control module is further used for identifying the temperature of each of the first national standard socket, the second national standard socket, the first European standard socket and the second European standard socket based on the resistance change of each of the NTC resistors; and when the temperature exceeds a temperature threshold, the control module controls the high-voltage protection module to disconnect the connection between the battery pack and the distribution module.

[0009] In an embodiment, the distribution module comprises: a first national standard positive relay, a first European standard positive relay, a second national standard positive relay, a second European standard positive relay, a first national standard negative relay, a first European standard negative relay, a second national standard negative relay and a second European standard negative relay; the control ends of each of the relays are connected to the control module; the first contact of the first national standard positive relay and the first contact of the first national standard negative relay are connected to the first national standard socket respectively; the first contact of the first European standard positive relay and the first contact of the first European standard negative relay are connected to the first European standard socket respectively; the first contact of the second national standard positive relay and the first contact of the second national standard negative relay are connected to the second national standard socket respectively; the first contact of the second European standard positive relay and the first contact of the second European standard negative relay are connected to the second European standard socket respectively; the second contacts of each of the relays are connected to the high-voltage protection module respectively; the second contact of the first national standard positive relay is further connected to the second contact of the first European standard positive relay; the second contact of the second national standard positive relay is further connected to the second contact of the second European standard positive relay; the second contact of the first national standard negative relay is further connected to the second contact of the first European standard negative relay; and the second contact of the second national standard negative relay is further connected to the second contact of the second European standard negative relay.

[0010] In an embodiment, the high-voltage protection module comprises: a first charging positive relay, a second charging positive relay, a first charging negative relay, and a second charging negative relay; control ends of the first charging positive relay, the second charging positive relay, the first charging negative relay, and the second charging negative relay are connected to the control module; first contacts of the first charging positive relay, the second charging positive relay, the first charging negative relay, and the second charging negative relay are connected to the distribution module; and second contacts of the first charging positive relay, the second charging positive relay, the first charging negative relay, and the second charging negative relay are connected to the battery pack.

[0011] In addition, to achieve the above object, the application further provides a new energy vehicle, wherein the new energy vehicle applies the charging device as described above.

[0012] In addition, to achieve the above object, the application further provides a charging control method, which comprises: identifying a selection signal input by a control module; determining a corresponding charging standard according to the selection signal; and controlling a distribution module and a high-voltage protection module to be turned on based on the charging standard, so as to charge a battery pack.

[0013] In an embodiment, before the step of identifying the selection signal input by the control module, the method further comprises: identifying a standard signal of a charging gun; judging whether a national standard charging gun and a European standard charging gun are both in an access state based on the standard signal; and when the national standard charging gun and the European standard charging gun are not both in the access state, converting the standard signal of the charging gun into a selection signal and outputting the selection signal to the distribution module, so as to enter a charging process.

[0014] In an embodiment, after the step of judging whether the national standard charging gun and the European standard charging gun are both in the access state based on the standard signal, the method further comprises: if the national standard charging gun and the European standard charging gun are both in the access state, not allowing the charging process to be entered.

[0015] The one or more technical solutions provided by the application have at least the following technical effects: a plurality of charging guns are connected by a distribution module to form a plurality of charging branches, and each branch is controlled to be turned on and turned off by a control module. After the control module identifies the charging gun, a selection signal is output to the distribution module, the distribution module selects a charging branch based on the selection signal, a battery pack is connected to form a complete charging loop, and the plurality of charging guns can be simultaneously charged, the national standard charging gun and the European standard charging gun are both compatible, the charging efficiency is improved, and the application scenarios are widened. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which are incorporated into and form a part of the specification, illustrate one embodiment consistent with the application and, together with the description, serve to explain the principles of the application.

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, the drawings are only for the purpose of illustrating the embodiments of the present application, and for those of ordinary skill in the art, other drawings can also be obtained on the basis of these drawings without creative labor.

[0018] Figure 1 The structural block diagram provided for the charging device embodiment of the present application;

[0019] Figure 2 The structural block diagram of a feasible implementation provided for the charging device embodiment of the present application;

[0020] Figure 3 The high-voltage schematic diagram of a feasible implementation provided for the charging device embodiment one of the present application;

[0021] Figure 4 The low-voltage schematic diagram of a feasible implementation provided for the charging device embodiment one of the present application;

[0022] Figure 5 The flowchart provided for the charging control method embodiment of the present application.

[0023] Explanation of the reference numerals:

[0024] Reference Signs Description Reference Signs Description 10 Allocation Module 30 High Voltage Protection Module 20 Control Module

[0025] The purpose of the present application, the functional characteristics and the advantages will be further explained in combination with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application, and are not used to limit the present application.

[0027] In order to better understand the technical solutions of the present application, the following will be described in detail in combination with the drawings in the specification and specific embodiments.

[0028] In the prior art, the charging circuit of new energy commercial vehicle is powered by BDU (Battery Disconnect Unit) high-voltage box. This setting plays a key role in the power management of new energy commercial vehicle. However, the current configuration, i.e. double charging branch can only be configured with double gun double sign or double gun single sign, indeed faces some challenges, mainly reflected in two aspects of limited application scenarios and long charging time.

[0029] The current configuration limits the flexible use of new energy commercial vehicles in different scenarios. For example, in some specific scenarios, only one charging gun may be needed for charging, while the other charging gun is idle, which causes waste of resources. At the same time, for some scenarios that require fast and efficient charging, such as long-distance transportation or emergency tasks, the current charging configuration may not be able to meet the demand for fast energy replenishment.

[0030] Based on this, in order to solve the technical problems that the application scene of the existing charging technology is limited or the charging time is long, the application provides a charging device. Please refer to Figure 1 , Figure 1 The structural block diagram provided by the charging device embodiment of the application.

[0031] In this embodiment, the charging device comprises a distribution module 10 and a control module 20.

[0032] Among them, the control module 20 is connected with a plurality of charging guns and the distribution module 10 respectively; the distribution module 10 is also connected with a plurality of charging guns and battery packs respectively.

[0033] It should be noted that the connection of the control module 20 with a plurality of charging guns is a communication connection, which aims to identify various characteristics and states of the charging guns. Such communication connection is not limited to physical layer connection (such as through cable or plug), but more importantly, it includes information layer interaction.

[0034] It can be understood that the connection of the distribution module 10 with a plurality of charging guns is a charging connection, which is used to transmit power to support the battery pack charging process of new energy commercial vehicles. The above connection can be established by designing a suitable socket.

[0035] It can be understood that connecting a plurality of charging guns means that a plurality of charging guns can charge at the same time, which depends on the port setting of the distribution module, but charging guns of different standards cannot be used at the same time, so the distribution module needs to select a charging gun to establish a connection with the battery pack.

[0036] It should be noted that the distribution module 10 is used to select a charging gun based on the selection signal after receiving the selection signal, and establish a connection between the charging gun and the battery pack to realize the battery pack charging.

[0037] It can be understood that the distribution module 10 is responsible for reasonably distributing the energy from a plurality of charging guns to the battery pack. It may contain high-voltage contactors, current sensors, fuses and other components to realize this function, so as to ensure the safety and reliability of power transmission.

[0038] It should be noted that the control module 20 is used to identify the standard signal of the connected charging gun, convert the standard signal into a corresponding gating signal, and output to the distribution module.

[0039] It should be noted that the standard signal of the charging gun contains key information such as the model, power level, and communication protocol of the charging gun. Therefore, by identifying the standard signal of the connected charging gun, the type of charging gun can be accurately determined, and the impact of different types of charging guns can be avoided.

[0040] It should be noted that the control module 20 also establishes a communication connection with the battery pack. When the battery pack is fully charged or reaches the preset charging target, the control module 20 sends an instruction to the distribution module 10 to disconnect the charging connection. At the same time, the control module 20 can also record key data during the charging process, such as charging time, charging amount, energy consumption, etc., for subsequent analysis and optimization of use.

[0041] In addition, the setting of the distribution module also improves the flexibility of the charging device. It can be expanded according to the enterprise target charging demand to meet the changing market demand and technological development.

[0042] It can be understood that the specific workflow of the embodiment is as follows: when multiple charging guns are inserted into the charging device, the control module 20 first identifies the standard signal. This usually involves physical interface contact and communication protocol handshake process. Based on the identified charging gun information, the control module 20 generates a corresponding gating signal. These signals contain all the necessary information required to establish a charging connection. After receiving the gating signal, the distribution module 10 selectively closes or opens the high-voltage contactor according to the instructions in the signal, thereby establishing or disconnecting the electrical connection between the charging gun and the battery pack. This step ensures that power can be safely and efficiently transmitted to the battery pack.

[0043] In the embodiment, multiple charging guns are connected through the distribution module to form multiple charging branches, and each branch is controlled by the control module. After the control module identifies the charging gun, it outputs a gating signal to the distribution module. Based on the gating signal, the distribution module selects the charging branch and connects the battery pack to form a complete charging loop, which can achieve simultaneous charging of multiple charging guns. At the same time, both national standard and European standard charging guns can be compatible, which improves the charging efficiency and expands the application scenarios.

[0044] Further, Figure 2 , Figure 2 is a structural block diagram of a feasible implementation manner provided by the charging device embodiment of the present application. In a feasible implementation manner, in combination with the content described above, the charging device can also be provided with a high-voltage protection module 30.

[0045] It should be noted that in the present embodiment, the distribution module 10 is connected to the battery pack through the high-voltage protection module 30; the high-voltage protection module 30 is also connected to the control module 20.

[0046] It should be noted that the distribution module 10 is configured to select a charging gun based on the selection signal after receiving the selection signal, and establish a connection between the charging gun and the high-voltage protection module 30.

[0047] It can be understood that the high-voltage protection module 30 is located between the distribution module 10 and the battery pack, and plays a role of electrical isolation. It can quickly cut off the circuit when detecting abnormal voltage or current, so as to protect the battery pack and the charging device from damage.

[0048] Specifically, the control module 20 is further configured to detect the temperature of the charging device, and output a circuit breaking signal to the high-voltage protection module 30 when the temperature exceeds a temperature threshold. The high-voltage protection module 30 is configured to disconnect the battery pack from the distribution module 10 after receiving the circuit breaking signal.

[0049] It can be understood that through the connection with the control module 20, the high-voltage protection module 30 can receive temperature monitoring information from the control module 20. When the temperature of the charging device exceeds the preset temperature threshold, the control module 20 will send a circuit breaking signal, and the high-voltage protection module 30 will respond to the signal and disconnect the battery pack from the distribution module 10, so as to prevent safety accidents caused by overheating.

[0050] In the present embodiment, the introduction of the high-voltage protection module 30 enables the charging device to respond more quickly and accurately when facing abnormal situations, thereby enhancing the stability and reliability of the entire charging system. Once the high-voltage protection module 30 receives the circuit breaking signal and disconnects, the entire charging system will enter a fault protection state. At this time, the charging device will stop charging, and may need to wait for a period of time or perform specific troubleshooting and repair before resuming normal work. This fault protection mechanism helps to prevent potential safety hazards from further expanding, and provides a safer charging environment for users.

[0051] In combination with the above, the present application provides specific structures that can be optionally provided in the embodiments, please refer to Figure 3 , Figure 3 A high-voltage schematic diagram of a feasible implementation provided for the charging device embodiment one of the present application.

[0052] Taking 4 charging guns (2 national standard charging guns and 2 European standard charging guns) as an example, the distribution module 10 comprises: a first national standard positive relay, a first European standard positive relay, a second national standard positive relay, a second European standard positive relay, a first national standard negative relay, a first European standard negative relay, a second national standard negative relay and a second European standard negative relay; the control ends of the relays are connected to the control module respectively.

[0053] As shown in Figure 3 The distribution module 10 comprises, from top to bottom: the normally open contact of the first national standard positive relay, the normally open contact of the first European standard positive relay, the normally open contact of the second national standard positive relay, the normally open contact of the second European standard positive relay, the normally open contact of the first national standard negative relay, the normally open contact of the first European standard negative relay, the normally open contact of the second national standard negative relay and the normally open contact of the second European standard negative relay.

[0054] It should be noted that the first contact of each relay is connected to the corresponding charging gun socket; the second contact of each relay is connected to the high-voltage protection module; the second contact of the first national standard positive relay is also connected to the second contact of the first European standard positive relay; the second contact of the second national standard positive relay is also connected to the second contact of the second European standard positive relay; the second contact of the first national standard negative relay is also connected to the second contact of the first European standard negative relay; the second contact of the second national standard negative relay is also connected to the second contact of the second European standard negative relay.

[0055] It can be understood that the distribution module 10 is arranged in this way to form a four-input branch and a double-output branch for selection. When the control module decides that a certain charging gun is to be charged, it sends a signal to the control end of the corresponding positive relay and negative relay, so that these relays are closed. In this way, the charging gun current can flow to the high-voltage protection module 30 through the closed relay contact, and then to the battery pack.

[0056] The high-voltage protection module 30 comprises: a first charging positive relay, a second charging positive relay, a first charging negative relay and a second charging negative relay; the control ends of the first charging positive relay, the second charging positive relay, the first charging negative relay and the second charging negative relay are connected to the control module respectively.

[0057] It should be noted that, as shown in Figure 3As shown, the relay contacts of the high-voltage protection module 30 are arranged from top to bottom as follows: the first charging positive relay, the second charging positive relay, the first charging negative relay, the second charging negative relay, and the main negative relay. The first contacts of the first charging positive relay, the second charging positive relay, the first charging negative relay, and the second charging negative relay are connected to the distribution module, and the second contacts of the first charging positive relay, the second charging positive relay, the first charging negative relay, and the second charging negative relay are connected to the battery pack.

[0058] It can be understood that the high-voltage protection module 30 is arranged in this way to form a double-input branch and a double-output branch for selection. When the control module decides to start charging, it sends a closing signal to the corresponding relays in the high-voltage protection module 30. After the relays are closed, the charging current can flow from the distribution module to the battery pack through them.

[0059] It can be understood that if an abnormal situation occurs during charging (such as overcurrent, overvoltage, overheating, etc.), the control module will quickly send a disconnect signal to the high-voltage protection module 30. After receiving the disconnect signal, the relays will immediately open, thereby cutting off the charging current and protecting the battery pack and the charging device from damage. Once the abnormal situation is resolved, the control module can send a closing signal to the high-voltage protection module 30 again to resume the charging process. This fault recovery mechanism improves the reliability and usability of the charging device.

[0060] Specifically, the high-voltage protection module 30 can select a BDU high-voltage box, i.e., a battery disconnect unit, which can also be equipped with a discharge circuit to discharge the battery pack, a MSD manual maintenance switch for easy maintenance and repair, and a current sensor for precise current sensing to achieve comprehensive protection and safety control of the high-voltage system.

[0061] Please refer to Figure 4 , Figure 4 a low-voltage schematic diagram of a feasible implementation of the charging device embodiment one.

[0062] In this embodiment, the control module 20 can select a battery management system, and the charging device further includes a first national standard socket, a second national standard socket, a first European standard socket, a second European standard socket, a first EVCC controller, and a second EVCC controller.

[0063] It should be noted that, in order to establish the connection of the socket with the distribution module 10, the first contact of the first national standard positive relay and the first contact of the first national standard negative relay are connected with the first national standard socket respectively; the first contact of the first European standard positive relay and the first contact of the first European standard negative relay are connected with the first European standard socket respectively; the first contact of the second national standard positive relay and the first contact of the second national standard negative relay are connected with the second national standard socket respectively; and the first contact of the second European standard positive relay and the first contact of the second European standard negative relay are connected with the second European standard socket respectively.

[0064] It should be noted that each national standard socket is connected with the control module 20 for connecting a national standard charging gun; the first European standard socket and the second European standard socket are connected with the control module 20 through the first EVCC controller and the second EVCC controller respectively for connecting a European standard charging gun; and each EVCC controller is used to establish communication between each European standard socket and the control module 20.

[0065] It can be understood that by integrating multiple socket types and corresponding controllers, compatibility with different types of charging guns can be achieved. Figure 4 As shown in the figure, during national standard charging, the battery management system receives the national standard plug-in signal CC2_1 and the charging wake-up signal A1+, and the PIN5 pin of the battery management system outputs 24V voltage to the distribution box and the VCU, and the national standard charging relay is automatically attracted; during European standard charging, the battery management system receives the European standard plug-in signal CC2_2 and the charging wake-up signal A2+, and the PIN6 pin of the battery management system outputs 24V voltage to the distribution box and the VCU, and all European standard charging relays are automatically attracted.

[0066] In addition, the first national standard socket, the second national standard socket, the first European standard socket, and the second European standard socket each include an NTC resistor; each NTC resistor is connected with the control module 20; and the control module 20 is further used to identify the temperature of the first national standard socket, the second national standard socket, the first European standard socket, and the second European standard socket based on the resistance change of each NTC resistor; and when the temperature exceeds a temperature threshold, the control high-voltage protection module is controlled to disconnect the connection between the battery pack and the distribution module.

[0067] It should be noted that generally two NTC resistors are provided for each socket to achieve more accurate temperature monitoring. In the present embodiment, since the battery management system is insufficient to measure the temperature of the eight NTC resistors of the four sockets, only one NTC resistor is detected for each socket, and adaptive adjustment is made to achieve temperature measurement of the four sockets.

[0068] In addition, a new pin is added to the battery management system for outputting high-level control of the opening and closing of 10 national standard charging relays and European standard charging relays in the distribution module, allowing for independent control to avoid interference.

[0069] In this embodiment, the selection of the distribution module, control module and high voltage protection module is given under the premise of four charging guns, so as to achieve the purpose of four-gun dual-standard charging, solve the problem of limited application scenarios or long charging time of existing charging technology, and at the same time, the safety of the entire charging device is also greatly improved.

[0070] Furthermore, this application also proposes a new energy vehicle that utilizes the charging device described above. Since the new energy vehicle employs all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here.

[0071] In addition, this application also proposes a control method, please refer to... Figure 5 , Figure 5 This is a flowchart illustrating an embodiment of the charging control method of this application. In this embodiment, the method is applied to a new energy vehicle as described above, and the method includes steps S10 to S30.

[0072] Step S10: Identify the strobe signal input by the control module.

[0073] Understandably, the strobe signal can be issued by an external device (such as user operation, charging gun detection, etc.) to indicate which charging standard should be followed for the subsequent charging operation.

[0074] It should be noted that, in this application, one implementation of generating a gating signal is provided. Before the step of identifying the gating signal input by the control module, the method further includes: identifying the standard signal of the charging gun; based on the standard signal, determining whether both the national standard charging gun and the European standard charging gun are in the access state; when neither the national standard charging gun nor the European standard charging gun is in the access state, converting the standard signal of the charging gun into a gating signal and outputting it to the distribution module to enter the charging process.

[0075] It should be noted that the control module detects and identifies the standard signal emitted by the connected charging gun through the interface. The standard signal is used to distinguish whether it is a Chinese standard charging gun, a European standard charging gun, or other possible charging standards.

[0076] Understandably, based on the identified standard signals, the control module further determines whether both the Chinese standard charging gun and the European standard charging gun are connected. If only one type of charging gun is connected (Chinese standard or European standard), the process continues to the next step.

[0077] It can be understood that when it is determined that only one type of charging gun is connected, the control module converts the standard signal of the charging gun into a selection signal.

[0078] Further, the step of determining whether the national standard charging gun and the European standard charging gun are both in the connected state based on the standard signal further comprises: if the national standard charging gun and the European standard charging gun are both in the connected state, the charging process is not allowed to enter.

[0079] It can be understood that if the national standard charging gun and the European standard charging gun are both in the connected state, the system issues a warning, does not allow the charging process to enter, and may require user intervention, such as removing one of the charging guns.

[0080] Step S20, determining the corresponding charging standard according to the selection signal.

[0081] It can be understood that the distribution module can determine the type of charging gun and determine the corresponding charging standard after receiving the selection signal from the control module.

[0082] Step S30, based on the charging standard, controlling the distribution module and the high-voltage protection module to turn on, and charging the battery pack.

[0083] It can be understood that based on the determined charging standard, the control distribution module and the high-voltage protection module change the on-off state of the internal components to realize the connection of the charging circuit and thus charge the battery pack.

[0084] Generally speaking, when charging according to the national standard, the battery management system interacts with the charging pile according to the national standard GB / T27930; when charging according to the European standard, the battery management system interacts with the EVCC according to the national standard GB / T27930; the EVCC converts the national standard GB / T27930 protocol into the European standard ISO15118 and interacts with the charging pile. Then, the battery management system closes the battery management system main negative relay and the battery management system fast charging relay according to the high-voltage request instruction of the VCU to complete the charging high-voltage process.

[0085] Further, after the charging process starts, the control module can also continuously monitor the charging state, including current, voltage, temperature and other parameters, to determine whether the charging end condition is met, such as full charge, time limit, user manual stop, etc. When the charging end condition is met, the control module sends an instruction to the distribution module and the high-voltage protection module to disconnect the charging connection. The charging device enters standby state and waits for the next charging request.

[0086] In this embodiment, the charging control method of the new energy vehicle as described above is provided, thus at least having all the beneficial effects brought by the technical solutions of the above embodiments, in addition to which the charging process is further clarified, facilitating charging management of the charging device.

[0087] It should be noted that the above examples are only for understanding the present application and do not constitute a limitation on the charging control method of the present application, and more forms of simple transformation based on the technical concept are within the protection scope of the present application.

[0088] The above is only some embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation made by using the contents of the present application specification and drawings, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A charging device, characterized by, The charging device comprises a distribution module and a control module; The control module is connected with the distribution module and the plurality of charging guns respectively; The distribution module is further connected with the plurality of charging guns and the battery pack respectively; The control module is configured to identify a standard signal of the connected charging gun, convert the standard signal into a corresponding selection signal, and output the selection signal to the distribution module; The distribution module is provided with a plurality of high-voltage contactors, and is configured to, after receiving the selection signal, select a charging gun based on the selection signal, selectively close or open the plurality of high-voltage contactors, prevent different standard charging guns from being used simultaneously, and establish a connection circuit of the charging gun and the battery pack to realize battery pack charging; The charging device further comprises a high-voltage protection module; The distribution module is connected with the battery pack through the high-voltage protection module; The high-voltage protection module is further connected with the control module; The distribution module is configured to, after receiving the selection signal, select a charging gun based on the selection signal, and establish a connection of the charging gun and the high-voltage protection module; The control module is further configured to detect a temperature of the charging device, and output a tripping signal to the high-voltage protection module when the temperature exceeds a temperature threshold; The high-voltage protection module is configured to, after receiving the tripping signal, disconnect the battery pack from the distribution module; The charging device further comprises a first national standard socket, a second national standard socket, a first European standard socket, a second European standard socket, a first EVCC controller, and a second EVCC controller; Each national standard socket is connected with the control module and configured to connect a national standard charging gun; The first European standard socket and the second European standard socket are connected with the control module through the first EVCC controller and the second EVCC controller respectively, and configured to connect a European standard charging gun; Each EVCC controller is configured to establish communication with each European standard socket and the control module; The distribution module comprises a first national standard positive relay, a first European standard positive relay, a second national standard positive relay, a second European standard positive relay, a first national standard negative relay, a first European standard negative relay, a second national standard negative relay, and a second European standard negative relay; Control terminals of each relay are connected with the control module respectively; First contacts of the first national standard positive relay and the first national standard negative relay are connected with the first national standard socket respectively; First contacts of the first European standard positive relay and the first European standard negative relay are connected with the first European standard socket respectively; First contacts of the second national standard positive relay and the second national standard negative relay are connected with the second national standard socket respectively; First contacts of the second European standard positive relay and the second European standard negative relay are connected with the second European standard socket respectively; Second contacts of each relay are connected with the high-voltage protection module respectively; The second contact of the first national standard positive relay is further connected with the second contact of the first European standard positive relay; The second contact of the second national standard positive relay is further connected with the second contact of the second European standard positive relay; The second contact of the first national standard negative relay is further connected to the second contact of the first European standard negative relay. The second contact of the second national standard negative relay is further connected to the second contact of the second European standard negative relay.

2. The charging device of claim 1, wherein, The first national standard socket, the second national standard socket, the first European standard socket and the second European standard socket each comprise an NTC resistor. Each of the NTC resistors is connected to the control module. The control module is further configured to identify the temperature of the first national standard socket, the second national standard socket, the first European standard socket and the second European standard socket based on the resistance change of each of the NTC resistors, and control the high-voltage protection module to disconnect the battery pack from the distribution module when the temperature exceeds a temperature threshold.

3. The charging device of claim 2, wherein, The high-voltage protection module comprises a first charging positive relay, a second charging positive relay, a first charging negative relay and a second charging negative relay. The control ends of the first charging positive relay, the second charging positive relay, the first charging negative relay and the second charging negative relay are respectively connected to the control module. The first contacts of the first charging positive relay, the second charging positive relay, the first charging negative relay and the second charging negative relay are respectively connected to the distribution module. The second contacts of the first charging positive relay, the second charging positive relay, the first charging negative relay and the second charging negative relay are respectively connected to the battery pack.

4. A new energy vehicle, characterized in that, The new energy vehicle applies the charging device of any one of claims 1 to 3.

5. A charge control method characterized by, The method is applied to the new energy vehicle of claim 4, and the method comprises: identifying a selection signal input by the control module; determining a corresponding charging standard according to the selection signal; controlling the distribution module and the high-voltage protection module to be turned on based on the charging standard, so as to charge the battery pack.

6. The charge control method according to claim 5, wherein The step of identifying the selection signal input by the control module further comprises: identifying a standard signal of the charging gun; judging whether the national standard charging gun and the European standard charging gun are both in the access state based on the standard signal; when the national standard charging gun and the European standard charging gun are not both in the access state, converting the standard signal of the charging gun into a selection signal and outputting the selection signal to the distribution module to enter the charging process.

7. The charge control method according to claim 6, wherein The step of judging whether the national standard charging gun and the European standard charging gun are both in the access state based on the standard signal further comprises: if the national standard charging gun and the European standard charging gun are both in the access state, the charging process is not allowed to be entered.

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