Charging Method, Device, Storage Medium, Computer Device and Vehicle of a Vehicle

Abstract

An embodiment of the present invention provides a charging method, device, storage medium, computer device and vehicle for a vehicle. The vehicle includes a battery and a communication protocol conversion module EVCC; the EVCC is configured to determine that the charging mode of the vehicle is a first charging mode according to the duty cycle signal and the power line carrier communication signal sent by the received charging gun; and charge the battery of the vehicle according to the first charging mode, so that the vehicle can determine different first charging modes according to different duty cycle signals and power line carrier communication signals, and the vehicle is compatible with more different charging schemes.

Description

Technical Field

[0001] Embodiments of the present invention relate to the technical field of vehicles, and in particular, to a charging method, device, storage medium, computer device, and vehicle for a vehicle.

Background Art

[0002] With the development of the new energy industry, new energy vehicles have developed rapidly, and pure electric vehicles have also seen explosive growth. However, there are significant differences between foreign charging communication protocols and domestic charging communication protocols. For example, the charging communication protocol for the European standard is DIN70721, the charging communication protocol for the American standard is ISO15118, and the charging communication protocol for the Chinese standard is GB27930. Currently, the way for domestic vehicles to implement different charging schemes is to add a communication protocol conversion module (Electric Vehicle Communication Controller, EVCC) to convert the charging communication protocol of the vehicle through the EVCC. However, due to the differences between different charging communication protocols and the connection signals of the charging plug gun, the vehicle cannot be compatible with more different charging schemes.

Summary of the Invention

[0003] In view of this, embodiments of the present invention provide a charging method, device, storage medium, computer device, and vehicle for a vehicle to solve the problem that vehicles in the prior art cannot be compatible with more different charging schemes.

[0004] In a first aspect, an embodiment of the present invention provides a vehicle, where the vehicle includes a battery and a communication protocol conversion module EVCC;

[0005] The EVCC is configured to determine that the charging mode of the vehicle is a first charging mode according to the duty cycle signal and the power line carrier communication signal sent by the received charging plug gun; and charge the battery of the vehicle according to the first charging mode.

[0006] In a possible implementation manner, the vehicle further includes a battery management system BMS;

[0007] The BMS is configured to determine a detected resistance value according to the detection signal sent by the received charging plug gun; determine that the charging mode of the vehicle is a second charging mode corresponding to the detected resistance value according to the detected resistance value; and send the second charging mode to the EVCC;

[0008] The EVCC is further configured to receive the second charging mode sent by the BMS; determine whether the first charging mode and the second charging mode match; and if it is determined that the first charging mode and the second charging mode match, execute the step of charging the battery of the vehicle according to the first charging mode.

[0009] In a possible implementation, the vehicle further includes a combined socket,

[0010] The BMS includes a first ground wire, a power module, and a first voltage dividing module, and the first voltage dividing module is connected to the power module;

[0011] When the vehicle is connected to the charging gun, the first ground wire is connected to the combined socket.

[0012] In a possible implementation, the combined socket includes a second voltage dividing module, and the second voltage dividing module is connected to the first ground wire;

[0013] When the vehicle is connected to the charging gun, the combined socket of the vehicle is connected to the charging gun; the second voltage dividing module is connected to the charging gun.

[0014] In a possible implementation, when the second voltage dividing module is connected to the charging gun,

[0015] The second voltage dividing module is connected to a third voltage dividing module, a fourth voltage dividing module, and a second ground wire of the charging gun; the second ground wire is further connected to the third voltage dividing module and the fourth voltage dividing module, and the third voltage dividing module and the fourth voltage dividing module are connected.

[0016] In a possible implementation, when the vehicle is connected to the charging gun,

[0017] The second voltage dividing module is connected to the first voltage dividing module; or,

[0018] The first voltage dividing module is connected to the fourth voltage dividing module.

[0019] In a possible implementation, the power module includes a power supply, and the first voltage dividing module includes a first voltage dividing resistor; the first end of the first voltage dividing resistor is connected to the power supply;

[0020] The second voltage dividing module includes a second voltage dividing resistor; the third module includes a third voltage dividing resistor, a voltage dividing switch, and a fourth voltage dividing resistor; the fourth voltage dividing module includes a fifth voltage dividing resistor;

[0021] The first end of the second voltage dividing resistor is connected to the first ground wire, the first end of the third voltage dividing resistor, the first end of the voltage dividing switch, the first end of the fifth voltage dividing resistor, and the second ground wire, and the first end of the third voltage dividing resistor is further connected to the first end of the voltage dividing switch and the second ground wire;

[0022] The second end of the second voltage dividing resistor is connected to the second end of the fourth voltage dividing resistor. The first end of the fourth voltage dividing resistor is connected to the second end of the third voltage dividing resistor and the second end of the voltage dividing switch. The second end of the third voltage dividing resistor is also connected to the second end of the voltage dividing switch;

[0023] When the second voltage dividing module is connected to the first voltage dividing module, the second end of the second voltage dividing resistor is also connected to the second end of the first voltage dividing resistor;

[0024] When the first voltage dividing module is connected to the fourth voltage dividing module, the second end of the fifth voltage dividing resistor is connected to the second end of the first voltage dividing resistor.

[0025] In a second aspect, an embodiment of the present invention provides a charging method for a vehicle. The method includes:

[0026] Determine that the charging mode of the vehicle is the first charging mode according to the duty cycle signal and the power line carrier communication signal sent by the received charging gun;

[0027] Charge the battery of the vehicle according to the first charging mode.

[0028] In a possible implementation manner, before charging the battery of the vehicle according to the first charging mode, it further includes:

[0029] Receive the second charging mode sent by the BMS;

[0030] Judge whether the first charging mode and the second charging mode match;

[0031] If it is judged that the first charging mode and the second charging mode match, execute the step of charging the battery of the vehicle according to the first charging mode.

[0032] In a possible implementation manner, the first charging mode includes a first charging standard and a first fast / slow charging mode, and the second charging mode includes a second charging standard and a second fast / slow charging mode; the judging whether the first charging mode and the second charging mode match includes:

[0033] Judge whether the first charging standard is the same as the second charging standard, and whether the first fast / slow charging mode is the same as the second fast / slow charging mode;

[0034] If it is judged that the first charging standard is the same as the second charging standard, and the first fast / slow charging mode is the same as the second fast / slow charging mode, it is determined that the first charging mode and the second charging mode match.

[0035] In a possible implementation, the first charging mode includes a first charging standard, and the second charging mode includes a second charging standard; determining whether the first charging mode and the second charging mode match includes:

[0036] Determining whether the first charging standard is the same as the second charging standard;

[0037] If it is determined that the first charging standard is the same as the second charging standard, it is determined that the first charging mode and the second charging mode match.

[0038] In a possible implementation, the first charging standard includes the European charging standard, the first fast / slow charging mode includes the fast charging mode, the second charging standard includes the European charging standard, and the second fast / slow charging mode includes the fast charging mode; or,

[0039] The first charging standard includes the European charging standard, the first fast / slow charging mode includes the slow charging mode, the second charging standard includes the European charging standard, and the second fast / slow charging mode includes the slow charging mode.

[0040] In a possible implementation, the first charging standard includes the US charging standard, and the second charging standard includes the US charging standard.

[0041] Before determining that the charging mode of the vehicle is the first charging mode according to the duty cycle signal and the power line carrier communication signal sent by the received charging gun, it further includes:

[0042] Sending a confirmation signal to the charging gun so that the charging gun sends the duty cycle signal and the power line carrier communication signal through the confirmation signal;

[0043] Receiving the duty cycle signal and the power line carrier communication signal.

[0044] In a possible implementation, the first charging mode includes a first fast / slow charging mode, and the first fast / slow charging mode includes the fast charging mode; charging the battery of the vehicle according to the first charging mode includes:

[0045] Closing the charging switch according to the closing switch request sent by the received BMS;

[0046] Charging the battery of the vehicle according to the charging demand sent by the received BMS through the closed charging switch.

[0047] In a possible implementation, the first charging mode includes a first fast / slow charging mode, and the first fast / slow charging mode includes the slow charging mode; charging the battery of the vehicle according to the first charging mode includes:

[0048] Close the charging switch according to the received closing switch request sent by the BMS.

[0049] Charge the battery of the vehicle through the closed charging switch according to the received charging demand sent by the BMS.

[0050] Send a duty cycle signal to the on-board charger of the vehicle according to the received charging demand sent by the BMS, so that the on-board charger charges the battery of the vehicle according to the duty cycle signal.

[0051] In a third aspect, an embodiment of the present invention provides a charging device for a vehicle. The device is carried on the EVCC, and the device includes:

[0052] A determination module, configured to determine that the charging mode of the vehicle is a first charging mode according to the received duty cycle signal and power line carrier communication signal sent by the charging gun.

[0053] A charging module, configured to charge the battery of the vehicle according to the first charging mode.

[0054] In a fourth aspect, an embodiment of the present invention provides a storage medium. The storage medium includes a stored program. When the program runs, it controls the device where the storage medium is located to execute the charging method of the vehicle in the second aspect or any possible implementation manner of the second aspect.

[0055] In a fifth aspect, an embodiment of the present invention provides a computer device, including a memory and a processor. The memory is used to store information including program instructions, and the processor is used to control the execution of the program instructions. When the program instructions are loaded and executed by the processor, the steps of charging the vehicle in the second aspect or any possible implementation manner of the second aspect are implemented.

[0056] In the technical solutions of a charging method, device, storage medium, computer device, and vehicle for a vehicle provided by the embodiments of the present invention, the vehicle includes a battery and a communication protocol conversion module EVCC; the EVCC is configured to determine that the charging mode of the vehicle is a first charging mode according to the received duty cycle signal and power line carrier communication signal sent by the charging gun; and charge the battery of the vehicle according to the first charging mode, so that the vehicle can determine different first charging modes according to different duty cycle signals and power line carrier communication signals, and make the vehicle compatible with more different charging schemes.

Description of the Drawings

[0057] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0058] Figure 1 Schematic diagram of a vehicle provided by an embodiment of the present invention;

[0059] Figure 2 One provided by an embodiment of the present invention Figure 1 Charging schematic diagram of the vehicle shown;

[0060] Figure 3 One provided by an embodiment of the present invention Figure 2 Charging schematic diagram of the vehicle shown;

[0061] Figure 4 Flowchart of a charging method for a vehicle provided by an embodiment of the present invention;

[0062] Figure 5 Schematic diagram of another vehicle provided by an embodiment of the present invention;

[0063] Figure 6 Flowchart of another charging method for a vehicle provided by an embodiment of the present invention;

[0064] Figure 7 Flowchart of a judgment provided by an embodiment of the present invention;

[0065] Figure 8 Flowchart of another judgment provided by an embodiment of the present invention;

[0066] Figure 9 Flowchart of a charging provided by an embodiment of the present invention;

[0067] Figure 10 Flowchart of another charging provided by an embodiment of the present invention;

[0068] Figure 11 Schematic diagram of the structure of a charging device for a vehicle provided by an embodiment of the present invention;

[0069] Figure 12 Schematic diagram of a computer device provided by an embodiment of the present invention.

Detailed implementation manners

[0070] To better understand the technical solutions of the present invention, the following will describe the embodiments of the present invention in detail with reference to the accompanying drawings.

[0071] It should be clear that the described embodiments are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0072] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "the" and "said" used in the embodiments of the present invention and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0073] It should be understood that the term "and / or" used herein is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0074] It should be understood that although terms such as first, second, and third may be used in the embodiments of the present invention to describe numbers, etc., these numbers should not be limited to these terms. These terms are only used to distinguish numbers from each other. For example, without departing from the scope of the embodiments of the present invention, the first number may also be called the second number, and similarly, the second number may also be called the first number.

[0075] Depending on the context, the word "if" as used herein may be interpreted as "when" or "while" or "in response to determining" or "in response to detecting". Similarly, depending on the context, the phrase "if determined" or "if detecting (stated condition or event)" may be interpreted as "when determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)".

[0076] Figure 1 A schematic diagram of a vehicle provided for the embodiments of the present invention, as Figure 1 shown, when the vehicle 1 is charging, the vehicle 1 is connected to the charging gun 2. The vehicle 1 includes a communication protocol conversion module EVCC 3 and a battery 4.

[0077] The EVCC 3 is used to determine that the charging mode of the vehicle 1 is the first charging mode according to the duty cycle signal and the power line carrier communication signal sent by the received charging gun 2; and charge the battery 4 of the vehicle 1 according to the first charging mode.

[0078] In the embodiments of the present invention, the vehicle further includes a battery management system BMS 5. The EVCC 3 is connected to the BMS 5.

[0079] The BMS 5 is configured to determine a detected resistance value based on a detection signal sent by a charging plug gun received; determine that the charging mode of the vehicle 1 is a second charging mode corresponding to the detected resistance value according to the detected resistance value; send the second charging mode to the EVCC 3; the EVCC 3 is further configured to receive the second charging mode sent by the BMS 5; determine whether the first charging mode and the second charging mode match; if it is determined that the first charging mode and the second charging mode match, perform the step of charging the battery 4 of the vehicle according to the first charging mode.

[0080] In an embodiment of the present invention, the first charging mode includes a first charging standard and a first fast / slow charging mode, and the second charging mode includes a second charging standard and a second fast / slow charging mode; specifically, the EVCC 3 is configured to determine whether the first charging standard is the same as the second charging standard, and whether the first fast / slow charging mode is the same as the second fast / slow charging mode; if it is determined that the first charging standard is the same as the second charging standard, and the first fast / slow charging mode is the same as the second fast / slow charging mode, it is determined that the first charging mode and the second charging mode match.

[0081] In an embodiment of the present invention, the first charging mode includes a first charging standard, and the second charging mode includes a second charging standard; specifically, the EVCC 3 is configured to determine whether the first charging standard is the same as the second charging standard; if it is determined that the first charging standard is the same as the second charging standard, it is determined that the first charging mode and the second charging mode match.

[0082] In an embodiment of the present invention, the first charging standard includes a European charging standard, the first fast / slow charging mode includes a fast charging mode, the second charging standard includes a European charging standard, and the second fast / slow charging mode includes a fast charging mode; alternatively, the first charging standard includes a European charging standard, the first fast / slow charging mode includes a slow charging mode, the second charging standard includes a European charging standard, and the second fast / slow charging mode includes a slow charging mode.

[0083] In an embodiment of the present invention, the first charging standard includes a US charging standard, and the second charging standard includes a US charging standard.

[0084] In an embodiment of the present invention, the EVCC 3 is further configured to send a confirmation signal to the charging plug gun 2, so that the charging plug gun 2 sends a duty cycle signal through the confirmation signal; receive the duty cycle signal.

[0085] In an embodiment of the present invention, the first charging mode includes a first fast and slow charging mode, and the first fast and slow charging mode includes a fast charging mode; the BMS 5 is further configured to send a closed switch request to the EVCC 3; specifically, the EVCC 3 is configured to close the charging switch according to the received closed switch request sent by the BMS 5; the BMS 5 is further configured to send the charging requirement of the vehicle 1 to the EVCC 3 according to the closed switch request; specifically, the EVCC 3 is configured to charge the battery 4 of the vehicle 1 through the closed charging switch according to the received charging requirement sent by the BMS 5.

[0086] In an embodiment of the present invention, the vehicle 1 further includes an on-board charger 6. The on-board charger 6 is connected to the BMS 5 and the battery 4.

[0087] The first charging mode includes a first fast and slow charging mode, and the first fast and slow charging mode includes a slow charging mode; the BMS 5 is further configured to send a closed switch request to the EVCC 3; specifically, the EVCC 3 is configured to close the charging switch according to the received closed switch request sent by the BMS 5; the BMS 5 is further configured to send the charging requirement of the vehicle 1 to the EVCC 3 and the on-board charger 6 according to the closed switch request; specifically, the EVCC 3 is configured to charge the battery 4 of the vehicle 1 through the closed charging switch according to the received charging requirement sent by the BMS 5; and send a duty cycle signal to the on-board charger 6 of the vehicle 1 according to the received charging requirement sent by the BMS 5, so that the on-board charger 6 charges the battery 4 of the vehicle 1 according to the duty cycle signal.

[0088] Figure 2 A kind provided by the embodiment of the present invention Figure 1 The charging schematic diagram of the vehicle shown in Figure 2 As shown, the vehicle 1 further includes a combined socket 7. The combined socket 7 is connected to the BMS 5.

[0089] The BMS 5 includes a first ground wire 51, a power module 52 and a first voltage dividing module 53. The first voltage dividing module 53 is connected to the power module 52; when the vehicle 1 is connected to the charging gun 2, the first ground wire 51 is connected to the combined socket 7. In a possible implementation manner, when the vehicle is not in the charging state, the first ground wire 51 is not connected to the combined socket 7; when the vehicle 1 is in the charging state, the charging gun 2 is connected to the combined socket 7 of the vehicle 1, and the combined socket 7 receives the pressure pressed by the charging gun 7, so that the combined socket 7 is connected to the first ground wire 51.

[0090] In an embodiment of the present invention, the combined socket 7 includes a second voltage dividing module 71, and the second voltage dividing module 71 is connected to the first ground wire 51;

[0091] When the vehicle 1 is connected to the charging gun 2, the combined socket 7 of the vehicle 1 is connected to the charging gun 2; the second voltage dividing module 71 is connected to the charging gun 2.

[0092] In an embodiment of the present invention, when the second voltage dividing module 71 is connected to the charging gun 2, the second voltage dividing module 71 is connected to the third voltage dividing module 21 of the charging gun 2, the fourth voltage dividing module 22 of the charging gun 2, and the second grounding wire 23 of the charging gun; the second grounding wire 23 is also connected to the third voltage dividing module 21 and the fourth voltage dividing module 22, and the third voltage dividing module 21 and the fourth voltage dividing module 22 are connected.

[0093] In an embodiment of the present invention, when the vehicle 1 is connected to the charging gun 2, the second voltage dividing module 71 is connected to the first voltage dividing module 53; alternatively, the first voltage dividing module 53 is connected to the fourth voltage dividing module 22.

[0094] Figure 3 A charging schematic diagram of the vehicle provided by an embodiment of the present invention, as Figure 2 shown, the power supply module 52 includes a power supply 521, and the first voltage dividing module 53 includes a first voltage dividing resistor 531; the first end a of the first voltage dividing resistor 531 is connected to the power supply 521; Figure 3 shown, the power supply module 52 includes a power supply 521, and the first voltage dividing module 53 includes a first voltage dividing resistor 531; the first end a of the first voltage dividing resistor 531 is connected to the power supply 521;

[0095] The second voltage dividing module 71 includes a second voltage dividing resistor 711; the third module 21 includes a third voltage dividing resistor 211, a voltage dividing switch 212, and a fourth voltage dividing resistor 213; the fourth voltage dividing module 22 includes a fifth voltage dividing resistor 221;

[0096] The first end c of the second voltage dividing resistor 711 is connected to the first grounding wire 51, the first end e of the third voltage dividing resistor 211, the first end g of the voltage dividing switch 212, the first end k of the fifth voltage dividing resistor 221, and the second grounding wire 23. The first end e of the third voltage dividing resistor 211 is also connected to the first end g of the voltage dividing switch 212 and the second grounding wire 23;

[0097] The second end d of the second voltage dividing resistor 711 is connected to the second end j of the fourth voltage dividing resistor 213. The first end i of the fourth voltage dividing resistor 213 is connected to the second end f of the third voltage dividing resistor 211 and the second end h of the voltage dividing switch 213. The second end f of the third voltage dividing resistor 211 is also connected to the second end h of the voltage dividing switch 213;

[0098] When the second voltage dividing module 71 is connected to the first voltage dividing module 53, the second end d of the second voltage dividing resistor 711 is also connected to the second end b of the first voltage dividing resistor 531;

[0099] When the first voltage dividing module 53 is connected to the fourth voltage dividing module 22, the second end m of the fifth voltage dividing resistor 221 is connected to the second end b of the first voltage dividing resistor 531.

[0100] An embodiment of the present invention provides a vehicle, which includes a battery and a communication protocol conversion module EVCC; the EVCC is configured to determine that the charging mode of the vehicle is a first charging mode according to the duty cycle signal and the power line carrier communication signal sent by the received charging gun; charge the battery of the vehicle according to the first charging mode, so that the vehicle can determine different first charging modes according to different duty cycle signals and power line carrier communication signals, and make the vehicle compatible with more different charging schemes.

[0101] Figure 4 It is a flowchart of a charging method for a vehicle provided by an embodiment of the present invention. As Figure 4 shown, the method includes:

[0102] Step 101: Determine that the charging mode of the vehicle is a first charging mode according to the duty cycle signal and the power line carrier communication signal sent by the received charging gun.

[0103] Each step of the embodiment of the present invention can be executed by a computer device. The charging method of the vehicle can be implemented in a new energy vehicle. The computer device includes the EVCC of the new energy vehicle.

[0104] Figure 5 It is a schematic diagram of another vehicle provided by an embodiment of the present invention. As Figure 5 shown, the vehicle includes an EVCC, a battery management system (Battery Management System, BMS), a battery, a vehicle control unit (Vehicle control unit, VCU), an on-board charger, and a European standard / American standard combined socket. The European standard / American standard combined socket is connected to the on-board charger, EVCC, BMS, and battery; the EVCC is connected to the VCU and BMS; the on-board charger is connected to the BMS and battery. In the European standard / American standard combined socket, L represents the AC power line interface, N represents the neutral line interface, and PE represents the ground line interface; the CP terminal and the PP terminal are two control contacts, which can be used to detect and control charging management. The CP terminal represents the control confirmation 1 terminal, and the PP terminal represents the control confirmation 2 terminal. NTC1 and NTC2 represent two spare line interfaces. lock+ and lock- represent the state of the electronic lock. When the voltage of lock+ is positive and the voltage of lock- is 0, it represents that the state of the electronic lock is closed; when the voltage of lock+ is 0 and the voltage of lock- is positive, it represents that the state of the electronic lock is in the open state. lock-state represents the previous state of the electronic lock. DC+ represents the DC power positive interface or the battery positive interface; DC- represents the DC power negative interface or the battery negative interface. can-h and can-l represent communication lines. can-h represents the high-bit data line, and can-l represents the low-bit data line. Differential signals can be transmitted through can-h and can-l.

[0105] As Figure 5 shown, when the vehicle is connected to the charging pile, the European standard / American standard combined socket is connected to the charging gun, and the charging gun can send the duty cycle signal and the power line carrier communication signal to the EVCC through the CP terminal of the European standard / American standard combined socket.

[0106] Step 102: Charge the battery of the vehicle according to the first charging mode.

[0107] In an embodiment of the present invention, in a possible implementation manner, before step 102, the method further includes: the computer device sends the first charging mode to the BMS.

[0108] A charging method for a vehicle provided by an embodiment of the present invention determines that the charging mode of the vehicle is the first charging mode according to the duty cycle signal and the power line carrier communication signal received from the charging gun; charges the battery of the vehicle according to the first charging mode, so that the vehicle can determine different first charging modes according to different duty cycle signals and power line carrier communication signals, and makes the vehicle compatible with more different charging schemes.

[0109] Figure 6 For the flowchart of another charging method for a vehicle provided by an embodiment of the present invention, as Figure 6 shown, the method includes:

[0110] Step 201: Determine that the charging mode of the vehicle is the first charging mode according to the duty cycle signal and the power line carrier communication signal received from the charging gun.

[0111] Each step of the embodiment of the present invention can be executed by a computer device. The charging method of the vehicle can be implemented in a new energy vehicle. The computer device includes the EVCC of the new energy vehicle.

[0112] In an embodiment of the present invention, the first charging mode includes a first charging standard and a first fast / slow charging mode. The first charging standard includes the European standard charging standard or the American standard charging standard; the first fast / slow charging mode includes the fast charging mode or the slow charging mode. The first charging mode can be the European standard fast charging mode, the European standard slow charging mode, the American standard fast charging mode or the American standard slow charging mode. For example, the European standard fast charging mode includes the European standard charging standard and the fast charging mode.

[0113] Before step 201, the method further includes: sending a confirmation signal to the charging gun so that the charging gun sends a duty cycle signal and a power line carrier communication (Programmable Logic Controller, PLC) signal through the confirmation signal; receiving the duty cycle signal and the PLC signal.

[0114] Step 202: Receive the second charging mode sent by the BMS.

[0115] In an embodiment of the present invention, the second charging mode includes a second charging standard. The second charging standard includes the European charging standard or the American charging standard. When the second charging standard includes the European charging standard, the second charging mode further includes a second fast / slow charging mode, which is either a fast charging mode or a slow charging mode. The second charging mode can be an European fast charging mode, an European slow charging mode or an American standard mode. For example, the American standard mode includes the American charging standard.

[0116] Before step 202, it further includes: the charging gun sends a wake-up signal to the computer device. The computer device receives the wake-up signal and sends the wake-up signal to the BMS.

[0117] The computer device sending the wake-up signal to the BMS includes: the computer device sends the wake-up signal to the vehicle control unit (VCU) so that the VCU sends the wake-up signal to the BMS. The wake-up signal includes a voltage signal, and the voltage signal includes a 12V voltage signal.

[0118] After the wake-up signal wakes up the BMS, the BMS determines a detected resistance value according to the detection signal sent by the received charging gun, and determines that the charging mode of the vehicle is the second charging mode corresponding to the detected resistance value according to the detected resistance value.

[0119] In an embodiment of the present invention, the BMS determines the detected resistance value through the circuit as Figure 3 shown. As Figure 3 shown, when the second end d of the second voltage-dividing resistor 711 is further connected to the second end b of the first voltage-dividing resistor 531 and the voltage-dividing switch 212 is in an open state, add the resistance value of the third voltage-dividing resistor 211 and the resistance value of the fourth voltage-dividing resistor 213 to calculate a first resistance value; add the first resistance value and the resistance value of the second voltage-dividing resistor 711 to calculate a second resistance value; multiply the first resistance value and the resistance value of the second voltage-dividing resistor 711 to calculate a third resistance value; divide the third resistance value by the second resistance value to calculate a fourth resistance value. The detected resistance value is the fourth resistance value. When the second end d of the second voltage-dividing resistor 711 is further connected to the second end b of the first voltage-dividing resistor 531 and the voltage-dividing switch 212 is in a closed state, add the resistance value of the fourth voltage-dividing resistor 213 and the resistance value of the second voltage-dividing resistor 711 to calculate a fifth resistance value; multiply the resistance value of the fourth voltage-dividing resistor 213 and the resistance value of the second voltage-dividing resistor 711 to calculate a sixth resistance value; divide the sixth resistance value by the fifth resistance value to calculate a seventh resistance value. The detected resistance value is the seventh resistance value. When the second end m of the fifth voltage-dividing resistor 221 is connected to the second end b of the first voltage-dividing resistor 531, the detected resistance value is the resistance value of the fifth voltage-dividing resistor 221.

[0120] As Figure 3As shown, the voltage of the power supply is usually 5V. The resistance value of the first voltage-dividing resistor 531 is usually 330 ohms (Ω), the resistance value of the second voltage-dividing resistor 711 is usually 2.7 kΩ, the resistance value of the third voltage-dividing resistor 211 is usually 330Ω, and the resistance value of the fourth voltage-dividing resistor 213 is usually 150Ω. When the second charging mode is the European standard fast charging mode, the resistance value of the fifth voltage-dividing resistor 221 is usually 1500Ω. When the second charging mode is the European standard slow charging mode, the resistance value of the fifth voltage-dividing resistor 221 is usually 100Ω, 220Ω, or 680Ω.

[0121] In a possible implementation, the BMS looks up the charging mode of the vehicle based on the detected resistance value through a resistance value mode comparison table. Table 1 is a resistance value mode comparison table provided by an embodiment of the present invention.

[0122] Table 2

[0123] Second charging mode Detected resistance Ω Remarks European standard fast charging mode 1500 None American standard mode 142 Connection status American standard mode 407 Semi-connection status European standard slow charging mode 100 None European standard slow charging mode 220 None European standard slow charging mode 680 None

[0124] As shown in Table 1 above, Table 1 shows the corresponding relationship between the detected resistance value and the second charging mode. When the detected resistance value is 1500Ω, the second charging mode is the European standard fast charging mode. When the detected resistance value is 142Ω, the second charging mode is the US standard mode, and the connection state indicates that Figure 3 the state of the voltage-dividing switch shown is in the closed state. When the detected resistance value is 407Ω, the second charging mode is the US standard mode, and the semi-connected state indicates that Figure 3 the state of the voltage-dividing switch shown is in the open state.

[0125] In another possible implementation, the BMS determines the detected resistance value range corresponding to the detected resistance value; and determines the second charging mode corresponding to the detected resistance value range according to the detected resistance value range.

[0126] In the embodiment of the present invention, referring to the detected resistance value shown in Table 1 above, the detected resistance value range can be (1500 - x, 1500 + x), (142 - x, 142 + x), (407 - x, 407 + x), (100 - x, 100 + x), (220 - x, 220 + x), (680 - x, 680 + x), (142 - x, 142 + x), or (407 - x, 407 + x), where x is the error value.

[0127] Step 203: Determine whether the first charging mode matches the second charging mode. If so, execute step 204; if not, execute step 205.

[0128] In the embodiment of the present invention, the computer device verifies and confirms the first charging mode and the second charging mode to ensure good performance of the charging pile and prevent damage to the battery during charging.

[0129] In a possible implementation, the first charging mode includes a first charging standard and a first fast / slow charging mode, and the second charging mode includes a second charging standard and a second fast / slow charging mode. Figure 7 A flowchart for judgment provided by an embodiment of the present invention is as Figure 7 shown. Step 203 may specifically include:

[0130] Step 2031: Determine whether the first charging standard is the same as the second charging standard, and whether the first fast / slow charging mode is the same as the second fast / slow charging mode. If so, execute step 2032; if not, execute step 205.

[0131] In an embodiment of the present invention, the first charging standard includes the European charging standard, the first fast / slow charging mode includes the fast charging mode, the second charging standard includes the European charging standard, and the second fast / slow charging mode includes the fast charging mode. Alternatively, the first charging standard includes the European charging standard, the first fast / slow charging mode includes the slow charging mode, the second charging standard includes the European charging standard, and the second fast / slow charging mode includes the slow charging mode. For example, when the first charging mode is the European fast charging mode, the first charging standard is the European charging standard, and the first fast / slow charging mode is the fast charging mode; when the second charging mode is the European fast charging mode, the second charging standard is the European charging standard, and the second fast / slow charging mode is the fast charging mode.

[0132] Step 2032: Determine that the first charging mode and the second charging mode match.

[0133] In an embodiment of the present invention, the computer device determines that the first charging standard is the same as the second charging standard, and the first fast / slow charging mode is the same as the second fast / slow charging mode.

[0134] In another possible implementation, the first charging mode includes a first charging standard, and the second charging mode includes a second charging standard. The first charging mode may further include a first fast / slow charging mode. Figure 8 Another flowchart for judgment provided by an embodiment of the present invention is as Figure 8 shown. Step 203 may specifically include:

[0135] Step 2033: Determine whether the first charging standard is the same as the second charging standard. If so, execute step 2034; if not, execute step 205.

[0136] In an embodiment of the present invention, the first charging standard includes the US charging standard, and the second charging standard includes the US charging standard.

[0137] Step 2034: Determine that the first charging mode and the second charging mode match.

[0138] In an embodiment of the present invention, the computer device determines that the first charging standard is the same as the second charging standard.

[0139] Step 204: Charge the battery of the vehicle according to the first charging mode.

[0140] In the embodiments of the present invention, the computer device is compatible with the European charging communication protocol DIN70721 and the American charging communication protocol ISO15118. The first charging standard includes the European charging standard or the American charging standard. When the first charging standard includes the European charging standard, the computer device charges the battery of the vehicle according to the European charging standard. For example, the computer device sets the protocol of the vehicle to the European charging communication protocol DIN70721 to charge the battery. When the first charging standard includes the American charging standard, the computer device charges the battery of the vehicle according to the American charging standard. For example, the computer device sets the protocol of the vehicle to the American charging communication protocol ISO15118 to charge the battery. Thus, the vehicle can be charged through the European charging standard or the American charging standard, making the vehicle compatible with more charging solutions.

[0141] The first fast / slow charging mode includes the fast charging mode or the slow charging mode. In a possible implementation, before step 204, it further includes: after the computer device determines that the first charging mode corresponds to the second charging mode, it further includes: sending the first charging mode to the BMS. The BMS receives the first charging mode sent by the computer device; and updates the second charging mode to the same charging mode as the first charging mode. The fast charging mode corresponds to the DC interface. The charging pile converts the alternating current of the power grid into direct current and then delivers the direct current to the DC interface of the vehicle. The slow charging mode corresponds to the AC interface. The charging pile delivers the alternating current of the power grid to the AC interface of the vehicle. The on-vehicle charger converts the alternating current into direct current to charge the battery.

[0142] When the first fast / slow charging mode includes the fast charging mode; Figure 9 This is a charging flow chart provided by the embodiments of the present invention. As Figure 9 shown, step 204 may specifically include:

[0143] Step 2041: Close the charging switch according to the received closing switch request sent by the BMS.

[0144] In the embodiments of the present invention, the computer device includes a charging switch. The BMS sends the closing switch request to the computer device. The computer device closes the charging switch to conduct the charging current between the charging gun and the vehicle, thereby charging the vehicle.

[0145] Step 2042: Charge the battery of the vehicle through the closed charging switch according to the received charging requirement sent by the BMS.

[0146] In an embodiment of the present invention, the BMS sends the charging requirement of the vehicle to the computer device according to the closed switch request, so that the computer device charges the battery of the vehicle according to the charging requirement. The BMS can send the charging requirement to the computer device in real time. The charging requirement includes the voltage required for charging and the current required for charging.

[0147] When the first charging mode includes the slow charging mode; Figure 10 Another charging flow chart provided by the embodiment of the present invention is as Figure 10 shown. Specifically, step 204 may include:

[0148] Step 2043: Close the charging switch according to the received closed switch request sent by the BMS.

[0149] Step 2044: Charge the battery of the vehicle through the closed charging switch according to the received charging requirement sent by the BMS.

[0150] In an embodiment of the present invention, the BMS sends the charging requirement of the vehicle to the computer device and the on-vehicle charger, so that the computer device and the on-vehicle charger charge the battery of the vehicle according to the charging requirement. Steps 2043 to 2044 may refer to Figure 9 Steps 2041 to 2042 in the shown embodiment.

[0151] Step 2045: Send a duty cycle signal to the on-vehicle charger of the vehicle according to the received charging requirement sent by the BMS, so that the on-vehicle charger charges the battery of the vehicle according to the duty cycle signal.

[0152] In an embodiment of the present invention, the computer device sends the duty cycle signal to the BMS, so that the BMS sends the duty cycle signal to the on-vehicle charger.

[0153] Step 205: End the process.

[0154] In an embodiment of the present invention, when the computer device determines that the first charging mode does not correspond to the second charging mode, it indicates that the charging pile is damaged or the standard of the charging pile does not meet the specification. To protect the battery of the vehicle, the computer device will not charge the battery.

[0155] An embodiment of the present invention provides a charging method for a vehicle. The computer device determines that the charging mode of the vehicle is the first charging mode according to the duty cycle signal and the power line carrier communication signal received from the charging gun; charges the battery of the vehicle according to the first charging mode, so that the vehicle can determine different first charging modes according to different duty cycle signals and power line carrier communication signals, and make the vehicle compatible with more different charging schemes.

[0156] Figure 11The following is a schematic structural diagram of a charging device for a vehicle provided by an embodiment of the present invention. As Figure 11 shown, the device includes: a determination module 31 connected to a charging module 32.

[0157] The determination module 31 is configured to determine that the charging mode of the vehicle is the first charging mode according to the duty cycle signal and the power line carrier communication signal sent by the received charging gun; the charging module 32 is configured to charge the battery of the vehicle according to the first charging mode.

[0158] In an embodiment of the present invention, the device further includes: a receiving module 33 and a judging module 34. The receiving module 33 is connected to the judging module 34 and the determination module 31; the judging module 34 is connected to the charging module 32.

[0159] The receiving module 33 is configured to receive the second charging mode sent by the BMS; the judging module 34 is configured to judge whether the first charging mode and the second charging mode match; specifically, the charging module 32 is configured to, if the judging module 34 determines that the first charging mode and the second charging mode match, execute the step of charging the battery of the vehicle according to the first charging mode.

[0160] In an embodiment of the present invention, the first charging mode includes a first charging standard and a first fast / slow charging mode, and the second charging mode includes a second charging standard and a second fast / slow charging mode; specifically, the judging module 34 is configured to judge whether the first charging standard is the same as the second charging standard, and whether the first fast / slow charging mode is the same as the second fast / slow charging mode; if it is determined that the first charging standard is the same as the second charging standard, and the first fast / slow charging mode is the same as the second fast / slow charging mode, it is determined that the first charging mode and the second charging mode match.

[0161] In an embodiment of the present invention, the first charging mode includes a first charging standard, and the second charging mode includes a second charging standard; specifically, the judging module 34 is configured to judge whether the first charging standard is the same as the second charging standard; if it is determined that the first charging standard is the same as the second charging standard, it is determined that the first charging mode and the second charging mode match.

[0162] In an embodiment of the present invention, the first charging standard includes the European charging standard, the first fast / slow charging mode includes the fast charging mode, the second charging standard includes the European charging standard, and the second fast / slow charging mode includes the fast charging mode; or, the first charging standard includes the European charging standard, the first fast / slow charging mode includes the slow charging mode, the second charging standard includes the European charging standard, and the second fast / slow charging mode includes the slow charging mode.

[0163] In an embodiment of the present invention, the first charging standard includes the US charging standard, and the second charging standard includes the US charging standard.

[0164] In an embodiment of the present invention, the device further includes: a sending module 35. The sending module 35 is connected to the receiving module 33.

[0165] The sending module 35 is configured to send a confirmation signal to the charging gun so that the charging gun sends a duty cycle signal and a power line carrier communication signal through the confirmation signal; the receiving module 33 is further configured to receive the duty cycle signal and the power line carrier communication signal.

[0166] In an embodiment of the present invention, the first charging mode includes a first fast / slow charging mode, and the first fast / slow charging mode includes a fast charging mode; the charging module 32 is specifically configured to close the charging switch according to the received closing switch request sent by the BMS; through the closed charging switch, charge the vehicle battery according to the received charging demand sent by the BMS.

[0167] In an embodiment of the present invention, the first charging mode includes a first fast / slow charging mode, and the first fast / slow charging mode includes a slow charging mode; the charging module 32 is specifically configured to close the charging switch according to the received closing switch request sent by the BMS; through the closed charging switch, charge the vehicle battery according to the received charging demand sent by the BMS; send a duty cycle signal to the vehicle on-board charger according to the received charging demand sent by the BMS so that the on-board charger charges the vehicle battery according to the duty cycle signal.

[0168] An embodiment of the present invention provides a charging device for a vehicle. According to the duty cycle signal and the power line carrier communication signal sent by the received charging gun, it is determined that the charging mode of the vehicle is the first charging mode; the vehicle battery is charged according to the first charging mode, so that the vehicle can determine different first charging modes according to different duty cycle signals and power line carrier communication signals, making the vehicle compatible with more different charging schemes.

[0169] An embodiment of the present invention provides a storage medium. The storage medium includes a stored program. When the program runs, it controls the device where the storage medium is located to execute the steps of the above-mentioned embodiment of the charging method for the vehicle. For specific descriptions, reference can be made to the above-mentioned embodiment of the charging method for the vehicle.

[0170] An embodiment of the present invention provides a computer device, including a memory and a processor. The memory is used to store information including program instructions, and the processor is used to control the execution of the program instructions. When the program instructions are loaded and executed by the processor, the steps of the above-mentioned embodiment of the charging method for the vehicle are implemented. For specific descriptions, reference can be made to the above-mentioned embodiment of the charging method for the vehicle.

[0171] Figure 12Schematic diagram of a computer device provided by an embodiment of the present invention. As Figure 12 shown, the computer device 60 of this embodiment includes: a processor 61, a memory 62, and a computer program 63 stored in the memory 62 and executable on the processor 61. When the computer program 63 is executed by the processor 61, it implements the charging method applied to vehicles in the embodiment. To avoid repetition, it will not be elaborated here one by one. Alternatively, when the computer program is executed by the processor 61, it implements the functions of each model / unit in the charging device applied to vehicles in the embodiment. To avoid repetition, it will not be elaborated here one by one.

[0172] The computer device 60 includes, but is not limited to, a processor 61 and a memory 62. Those skilled in the art can understand that Figure 12 merely an example of the computer device 50, does not constitute a limitation on the computer device 60, and may include more or fewer components than shown, or combine certain components, or different components. For example, the computer device 50 may also include input / output devices, network access devices, buses, etc.

[0173] The so-called processor 61 may be a central processing unit (CPU), or may also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0174] The memory 62 may be an internal storage unit of the computer device 60, such as the hard disk or memory of the computer device 60. The memory 62 may also be an external storage device of the computer device 60, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the computer device 50. Further, the memory 62 may also include both an internal storage unit and an external storage device of the computer device 60. The memory 62 is used to store the computer program and other programs and data required by the computer device 60. The memory 62 may also be used to temporarily store data that has been output or will be output.

[0175] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0176] In several embodiments provided by the present invention, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division, and there can be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the couplings, direct couplings, or communication connections shown or discussed among each other can be through some interfaces, and the indirect couplings or communication connections of the devices or units can be in electrical, mechanical, or other forms.

[0177] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0178] In addition, each functional unit in various embodiments of the present invention can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of a combination of hardware and software functional units.

[0179] The above-mentioned integrated units implemented in the form of software functional units can be stored in a computer-readable storage medium. The above-mentioned software functional units stored in a storage medium include several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute some steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks, or optical discs that can store program codes.

[0180] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A vehicle, characterized in that, The vehicle includes a battery, a communication protocol conversion module EVCC, and a battery management system BMS; The EVCC is configured to determine that the charging mode of the vehicle is a first charging mode according to a duty cycle signal and a power line carrier communication signal sent by a charging gun; and charge the battery of the vehicle according to the first charging mode; The BMS is configured to determine a detected resistance value according to a detection signal sent by the charging gun; According to the detected resistance value, determine that the charging mode of the vehicle is a second charging mode corresponding to the detected resistance value; and send the second charging mode to the EVCC; The EVCC is further configured to receive the second charging mode sent by the BMS; determine whether the first charging mode and the second charging mode match; if it is determined that the first charging mode and the second charging mode match, execute the step of charging the battery of the vehicle according to the first charging mode.

2. The vehicle according to claim 1, wherein The vehicle further includes a combined socket, The BMS includes a first ground wire, a power supply module, and a first voltage dividing module, and the first voltage dividing module is connected to the power supply module; When the vehicle is connected to the charging gun, the first ground wire is connected to the combined socket.

3. The vehicle according to claim 2, wherein, The combined socket includes a second voltage dividing module, and the second voltage dividing module is connected to the first ground wire; When the vehicle is connected to the charging gun, the combined socket of the vehicle is connected to the charging gun; and the second voltage dividing module is connected to the charging gun.

4. The vehicle according to claim 3, wherein When the second voltage dividing module is connected to the charging gun, The second voltage dividing module is connected to a third voltage dividing module, a fourth voltage dividing module, and a second ground wire of the charging gun; the second ground wire is further connected to the third voltage dividing module and the fourth voltage dividing module, and the third voltage dividing module and the fourth voltage dividing module are connected.

5. The vehicle according to claim 4, characterized in that, When the vehicle is connected to the charging gun, The second voltage dividing module is connected to the first voltage dividing module; or, The first voltage dividing module is connected to the fourth voltage dividing module.

6. The vehicle according to claim 5, wherein, The power supply module includes a power supply, and the first voltage dividing module includes a first voltage dividing resistor; a first end of the first voltage dividing resistor is connected to the power supply; The second voltage dividing module includes a second voltage dividing resistor; the third voltage dividing module includes a third voltage dividing resistor, a voltage dividing switch, and a fourth voltage dividing resistor; the fourth voltage dividing module includes a fifth voltage dividing resistor; A first end of the second voltage dividing resistor is connected to the first ground wire, a first end of the third voltage dividing resistor, a first end of the voltage dividing switch, a first end of the fifth voltage dividing resistor, and the second ground wire, and the first end of the third voltage dividing resistor is further connected to the first end of the voltage dividing switch and the second ground wire; The second end of the second voltage-dividing resistor is connected to the second end of the fourth voltage-dividing resistor. The first end of the fourth voltage-dividing resistor is connected to the second end of the third voltage-dividing resistor and the second end of the voltage-dividing switch. The second end of the third voltage-dividing resistor is also connected to the second end of the voltage-dividing switch; When the second voltage-dividing module is connected to the first voltage-dividing module, the second end of the second voltage-dividing resistor is also connected to the second end of the first voltage-dividing resistor; When the first voltage-dividing module is connected to the fourth voltage-dividing module, the second end of the fifth voltage-dividing resistor is connected to the second end of the first voltage-dividing resistor.

7. A charging method for a vehicle, characterized in that, The method includes: Determining that the charging mode of the vehicle is a first charging mode according to the duty cycle signal and the power line carrier communication signal sent by the received charging gun; Receiving a second charging mode sent by the BMS; Judging whether the first charging mode and the second charging mode match; If it is judged that the first charging mode and the second charging mode match, charging the battery of the vehicle according to the first charging mode.

8. The method according to claim 7, characterized in that, The first charging mode includes a first charging standard and a first fast / slow charging mode, and the second charging mode includes a second charging standard and a second fast / slow charging mode; The judging whether the first charging mode and the second charging mode match includes: Judging whether the first charging standard is the same as the second charging standard, and whether the first fast / slow charging mode is the same as the second fast / slow charging mode; If it is judged that the first charging standard is the same as the second charging standard, and the first fast / slow charging mode is the same as the second fast / slow charging mode, it is determined that the first charging mode and the second charging mode match.

9. The method according to claim 7, wherein The first charging mode includes a first charging standard, and the second charging mode includes a second charging standard; The judging whether the first charging mode and the second charging mode match includes: Judging whether the first charging standard is the same as the second charging standard; If it is judged that the first charging standard is the same as the second charging standard, it is determined that the first charging mode and the second charging mode match.

10. The method according to claim 8, characterized in that, The first charging standard includes the European charging standard, the first fast / slow charging mode includes the fast charging mode, the second charging standard includes the European charging standard, and the second fast / slow charging mode includes the fast charging mode; or, The first charging standard includes the European charging standard, the first fast / slow charging mode includes the slow charging mode, the second charging standard includes the European charging standard, and the second fast / slow charging mode includes the slow charging mode.

11. The method according to claim 9, characterized in that, The first charging standard includes the US charging standard, and the second charging standard includes the US charging standard.

12. The method according to claim 7, wherein Before determining that the charging mode of the vehicle is a first charging mode according to the duty cycle signal and the power line carrier communication signal sent by the received charging gun, it further includes: Sending a confirmation signal to the charging gun so that the charging gun sends the duty cycle signal and the power line carrier communication signal through the confirmation signal; Receiving the duty cycle signal and the power line carrier communication signal.

13. The method according to claim 7, wherein The first charging mode includes a first fast / slow charging mode, and the first fast / slow charging mode includes a fast charging mode; charging the battery of the vehicle includes: Closing the charging switch according to the received closing switch request sent by the BMS; Charging the battery of the vehicle through the closed charging switch according to the received charging requirement sent by the BMS.

14. The method according to claim 7, wherein The first charging mode includes a first fast / slow charging mode, and the first fast / slow charging mode includes a slow charging mode; charging the battery of the vehicle includes: Closing the charging switch according to the received closing switch request sent by the BMS; Charging the battery of the vehicle through the closed charging switch according to the received charging requirement sent by the BMS; Sending a duty cycle signal to the on-vehicle charger of the vehicle according to the received charging requirement sent by the BMS, so that the on-vehicle charger charges the battery of the vehicle according to the duty cycle signal.

15. A charging device for a vehicle, characterized in that, The device includes: A determination module, configured to determine that the charging mode of the vehicle is the first charging mode according to the received duty cycle signal and power line carrier communication signal sent by the charging gun; A receiving module, configured to receive the second charging mode sent by the BMS; A judgment module, configured to judge whether the first charging mode and the second charging mode match; A charging module, configured to, if the judgment module judges that the first charging mode and the second charging mode match, charge the battery of the vehicle according to the first charging mode.

16. A storage medium, characterized in that, The storage medium includes a stored program, wherein when the program runs, it controls the device where the storage medium is located to execute the charging method of the vehicle according to any one of claims 7 to 14.

17. A computer device, comprising a memory and a processor, the memory being used for storing information including program instructions, and the processor being used for controlling the execution of the program instructions, characterized in that, When the program instructions are loaded and executed by the processor, the charging method of the vehicle according to any one of claims 7 to 14 is implemented.

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