Vehicle charging control guiding method and device and vehicle

Abstract

The invention discloses a vehicle charging control guiding method and device and a vehicle, and the method comprises the steps: obtaining a connection signal of a charging pile, and collecting an input signal of the charging pile; analog-to-digital conversion and signal identification are carried out on the input signal through the integrated detection module, and a charging task is confirmed according to an identification result; and performing corresponding charging guide control on the vehicle according to the charging task to enable the vehicle to start a corresponding charging mode. The integrated detection module is arranged to carry out acquisition, analog-to-digital conversion and identification on the signals of the charging piles, so that the charging task is identified, the corresponding charging mode is started, and the vehicle can adapt to charging protocols of different charging piles on the premise that a protocol adapter is not additionally arranged.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle charging guidance, and in particular to a vehicle charging control guidance method, equipment and vehicle. Background Art

[0002] In the existing vehicle charging system, there may be differences between foreign and domestic standards in charging protocols. If domestically produced vehicles need to realize the complete charging function of electric vehicles abroad and share the control systems of domestic and foreign export models to the greatest extent, different control guidance circuits are needed to realize different charging protocol standards, thereby ensuring the complete charging function.

[0003] In the prior art, if domestic vehicles are charged using charging piles of foreign standards, a protocol adapter needs to be separately set up to convert signals between different charging protocols, and combined with an on-board charger to achieve a complete charging function. Therefore, if existing vehicles need to achieve the effect of being able to charge using both European standard charging piles and national standard charging piles, they need to separately set up an on-board charger and a vehicle controller, and also need to set up a protocol adapter, which takes up more space in the vehicle and increases the production cost of the vehicle.

[0004] Therefore, it is necessary to provide a vehicle charging control guidance method that can help reduce vehicle production costs and increase available interior space in the vehicle. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiency of the prior art that charging piles with different protocols need to be additionally provided with a protocol adapter, and to provide a vehicle charging control guidance method, device and vehicle that do not require an additional protocol adapter, wherein the method sets an integrated detection module and reuses the original guidance circuit of the vehicle, and achieves the effect of reducing the volume occupied by the charging module and reducing the production cost through circuit reuse. Through signal conversion and then task identification, and starting the corresponding charging mode, the vehicle can adapt to the charging protocols of different charging piles without additionally setting up a protocol adapter.

[0006] The technical solution of the present invention provides a vehicle charging control guidance method, comprising:

[0007] Obtaining a connection signal of a charging pile and collecting an input signal of the charging pile;

[0008] Performing analog-to-digital conversion and signal recognition on the input signal through an integrated detection module, and confirming a charging task according to the recognition result;

[0009] The vehicle is subjected to corresponding charging guidance control according to the charging task, so that the vehicle starts a corresponding charging mode.

[0010] In one of the optional technical solutions, the input signal includes a gun insertion signal, a control guidance signal and / or a local area network communication signal;

[0011] The integrated detection module detects the plug-in status, resistance value and charging cable capacity of the charging gun through the plug-in signal;

[0012] The integrated detection module detects the charging task, charging voltage and charging power through the control guidance signal and the local area network communication signal.

[0013] In one of the optional technical solutions, the performing signal conversion on the input signal includes:

[0014] Collect the gun insertion signal from the first interface, collect the control guidance signal from the second interface, and collect the local area network communication signal from the third interface;

[0015] The control pilot signal is converted from an analog signal to a corresponding digital signal by the integrated detection module.

[0016] In one of the optional technical solutions, converting the control guidance signal from an analog signal to a corresponding digital signal includes:

[0017] Convert the resistance value in the gun insertion signal from an analog signal to a corresponding digital signal;

[0018] Converting the voltage amplitude, voltage frequency and duty cycle in the control pilot signal from analog signals to corresponding digital signals;

[0019] The single-line voltage or the double-line voltage in the local area network communication signal is converted from an analog signal to a corresponding digital signal.

[0020] In one of the optional technical solutions, the step of performing signal recognition on the input signal by an integrated detection module and confirming the charging task according to the recognition result includes:

[0021] The integrated detection module performs task identification through the digital signal converted from the gun insertion signal, the control guidance signal and the local area network communication signal to obtain a task identification result;

[0022] If the task identification result meets the first charging task condition, controlling the vehicle to start the national standard fast charging mode;

[0023] If the task identification result meets the second charging task condition, controlling the vehicle to start the European standard fast charging mode;

[0024] If the task identification result meets the third charging task condition, controlling the vehicle to start a slow charging mode;

[0025] If the task identification result satisfies the fourth charging condition, it is determined that the guidance system fails and the vehicle is controlled to terminate charging.

[0026] In one of the optional technical solutions, the first charging condition is that there is the local area network communication signal that meets the preset baud rate, and there is no control guidance signal;

[0027] The second charging condition is that there is no LAN communication signal, and the duty cycle of the control guidance signal falls within the first ratio interval and the effective level is superimposed with high-frequency ripples;

[0028] The third charging condition is that there is no local area network communication signal, and the duty cycle of the control guidance signal falls within the second ratio interval;

[0029] The fourth charging condition is that there is no LAN communication signal, no control guidance signal, or the duty cycle of the control guidance signal is outside the first ratio interval and the second ratio interval, or the effective level of the control guidance signal whose duty cycle falls within the first ratio interval is not superimposed with high-frequency ripple.

[0030] In one of the optional technical solutions, the step of performing corresponding charging guidance control on the vehicle according to the charging task so that the vehicle starts a corresponding charging mode includes:

[0031] Mapping a first charging current limit value according to a digital signal of a resistance value in the gun insertion signal;

[0032] Mapping a second charging current limit value according to the digital signal of the duty cycle in the control guidance signal or the local area network communication signal;

[0033] Compare the first charging current limit value and the second charging current limit value, and take the smaller value as the target charging current limit value;

[0034] A charging mode corresponding to the vehicle is selected and started according to the target charging current limit value, and a charging current and a charging power are adjusted according to the target charging current limit value.

[0035] In one of the optional technical solutions, when the task identification result meets the third charging task condition, the charging current limit is calculated by a current mapping formula, and the current mapping formula is:

[0036] I max =(D*100)*C

[0037] Among them, I max is the charging current limit, D is the duty cycle of the control pilot signal, and C is the limit coefficient.

[0038] The technical solution of the present invention provides an electronic device, including a memory, a processor and an electronic device program on the memory, wherein the processor executes the electronic device program to implement any step of the aforementioned vehicle charging control guidance method.

[0039] The technical solution of the present invention provides an electronic device readable storage medium, on which an electronic device program / instruction is stored. When the electronic device program / instruction is executed by a processor, the steps of any of the aforementioned vehicle charging control guidance methods are implemented.

[0040] The technical solution of the present invention provides a vehicle, which includes the aforementioned electronic device, and the vehicle can implement any step of the aforementioned vehicle charging control guidance method.

[0041] The above technical solution has the following beneficial effects:

[0042] The vehicle charging control guidance method provided by the present invention uses an integrated detection module to complete signal acquisition, analog-to-digital conversion and signal recognition, and does not require an additional protocol adapter, thereby reducing the volume occupied by the charging module in the vehicle and reducing the overall production cost of the vehicle. The method provided by the present invention collects, performs analog-to-digital conversion and task recognition on the signal of the charging pile, and enables the vehicle to start the corresponding charging mode. Without the additional setting of a protocol adapter and an additional adapter harness, the vehicle can adapt to the charging protocols of different charging piles, and realizes the indiscriminate charging mode recognition between different charging protocols through extensibility recognition, including charging type recognition and charging power limit recognition, with strong compatibility and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The disclosure of the present invention will become more easily understood with reference to the accompanying drawings. It should be understood that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings:

[0044] Figure 1 A flowchart of a vehicle charging control guidance method provided by an embodiment of the present invention;

[0045] Figure 2 A flowchart of a vehicle charging control guidance method provided by another embodiment of the present invention;

[0046] Figure 3 A flowchart of a vehicle charging control guidance method provided by another embodiment of the present invention;

[0047] Figure 4 A structural diagram of an electronic device provided by an embodiment of the present invention;

[0048] Figure 5 A schematic diagram of a guidance process of a vehicle charging control guidance method provided by an embodiment of the present invention;

[0049] Figure 6 A conditional judgment flow chart of a vehicle charging control guidance method provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0050] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0051] In the prior art, the input signals from the charging pile to the vehicle include a gun plug-in signal, a control guidance signal, and a local area network communication signal. For example, the gun plug-in signal of the national standard charging pile is a CC signal or a CC2 signal, the control guidance signal of the national standard charging pile is a CP signal, and the local area network communication signal of the national standard charging pile is a CAN signal; the gun plug-in signal of the European standard charging pile is a PP signal, and the control guidance signal of the European standard charging pile is a CP signal. High-frequency ripples are directly superimposed on the CP signal to achieve information transmission through different frequencies. Among them, the CC signal in the gun plug-in signal of the national standard charging pile is mainly used to determine the connection status between the charging plug and the socket, while the CC2 signal in the gun plug-in signal of the national standard charging pile is used to confirm that the charging gun has been correctly inserted into the charging interface. The two signals jointly ensure the smooth progress and safety of the vehicle charging process.

[0052] The various input signals of the European standard charging pile enter the protocol adapter, and through the sampling, calculation, main control, conversion and other functional circuits in the protocol adapter, the input signals of the European standard charging pile are converted into CC signals, CP signals or CC2 signals that comply with the national standards, and transmitted to the vehicle, so that the European standard charging pile can still realize the full charging function after being connected to the national standard vehicle.

[0053] In order for existing national standard vehicles to adapt to the charging function of European standard charging piles after export, it is necessary to additionally set up a protocol adapter in the vehicle. By reading the plug-in signal and control guidance signal of the European standard charging pile, the power limit specified by the European standard is identified, and then converted into the plug-in signal mapping and control guidance signal mapping corresponding to the power limit specified by the national standard and recognizable by the national standard vehicle through the protocol adapter, and output to the national standard on-board charger (On-Board Charger, OBC) responsible for slow charging or the national standard vehicle controller (Vehicle Control Unit, VCU) responsible for fast charging in the vehicle. The national standard on-board charger and the national standard vehicle controller are controlled by the electronic control unit (Electronic Control Unit, ECU) to control the slow charging task and the fast charging task, so that the national standard on-board charger and the vehicle controller can adapt to the charging of the European standard charging pile without any changes.

[0054] However, the disadvantage of the prior art is that a protocol adapter for signal conversion needs to be additionally provided in the vehicle, and the protocol adapter can only convert the input signal of the charging pile. If it is necessary to fully realize all the charging functions of the charging pile between different protocols, other modules in the vehicle need to be assisted, such as the electronic control unit (ECU), the on-board charger (OBC) or the vehicle controller (VCU). Installing the protocol adapter in the vehicle also takes up additional space, and it is also necessary to design the wiring layout and software support, which leads to a reduction in the available space inside the vehicle and a complex wiring structure, and will also significantly increase the overall design and manufacturing costs of the vehicle.

[0055] For this reason, Figure 1 and Figure 5 As shown, a vehicle charging control guidance method provided by an embodiment of the present invention includes:

[0056] Step S101: Acquire a connection signal of a charging pile, and collect an input signal of the charging pile.

[0057] Step S102: performing analog-to-digital conversion and signal recognition on the input signal through an integrated detection module, and confirming a charging task according to the recognition result.

[0058] Step S103: performing corresponding charging guidance control on the vehicle according to the charging task, so that the vehicle starts a corresponding charging mode.

[0059] Among them, the integrated detection module can be integrated into the electronic control unit of the vehicle, so that the electronic control unit can use the functional circuits or chips in the on-board charger and the vehicle controller to realize the process of controlling the entire vehicle charging control guidance method by one electronic control unit. Through this solution, there is no need to set up additional protocol adapters or other adapter devices for signal conversion between different protocols in the vehicle, so that the vehicle can get complete charging services when connected to charging piles with different charging protocols, which can effectively reduce the production cost of the vehicle and has stronger compatibility.

[0060] In step S101, when the charging gun of the charging pile is connected to the charging socket on the vehicle, a connection signal between the charging pile and the vehicle is received, the safety lock is released, and the charging pile transmits the input signal to the vehicle through the charging gun. The electronic control unit in the vehicle receives the input signal and performs signal conversion through the integrated detection module integrated in the electronic control unit. In one embodiment, the input signal includes a gun plug signal, a control guide signal and / or a local area network communication signal. The integrated detection module detects the plug-in status of the charging gun and the capacity of the charging cable through the gun plug signal. The integrated detection module detects the charging task and charging power through the control guide signal and the local area network communication signal. Signal conversion mainly converts the original signal into a signal that is conducive to reading and identification, so as to achieve unified identification of various charging piles.

[0061] In step S102, the input signal after analog-to-digital conversion is read and identified by the integrated detection module, and the charging task is confirmed according to the specific identification of the input signal. The charging task is classified according to the charging protocol type and charging power, mainly including national standard fast charging task, national standard slow charging task, European standard fast charging task and European standard slow charging task.

[0062] In step S103, after determining the charging task, the vehicle is controlled to enter the corresponding charging mode. It is also necessary to further determine information such as the charging current limit and the charging power limit based on the input signal. During the charging process, the various charging parameters of the vehicle are detected through the integrated detection module, and the charging status is regulated by the electronic control unit to ensure that the vehicle is continuously in a safe state during the charging process.

[0063] The mapping relationship between the resistance value mapped by the plug-in signal and the charging cable capacity is shown in Table 1 below.

[0064]

[0065] Table 1

[0066] On the other hand, in the prior art, when performing signal conversion through devices such as protocol adapters, it is necessary to know in advance the type of charging pile and the charging protocol used. When the vehicle charging guidance is performed through the above method, due to the use of a universal identification scheme, before the charging gun is inserted into the charging socket on the vehicle, it is not necessary to know in advance the type of charging pile or the charging protocol used. By uniformly mapping the signals between different protocols, the input signals of the charging piles under different charging protocols are uniformly converted to facilitate the confirmation of the charging task.

[0067] As an example, when charging a vehicle through a European standard charging pile, the power line communication protocol is generally used, while domestically produced vehicles use the controller area network bus communication protocol when charging. If only low-voltage AC slow charging is performed, it is only necessary to make a corresponding request to the vehicle controller through the on-board charger; if high-voltage DC fast charging is required, it is necessary to use the integrated detection module to unpack, extract, reorganize and package the power line communication information, and through the above steps S101 to S103, convert the power line communication signal into the corresponding controller area network communication signal, determine the charging task, output instructions to the vehicle controller, so that the vehicle enters the fast charging process and receives high-current DC power from the European standard charging pile.

[0068] In summary, if Figure 5As shown, the vehicle charging control guidance method provided by the embodiment of the present invention only completes signal acquisition, analog-to-digital conversion and signal recognition through an integrated detection module, and does not require an additional protocol adapter, thereby reducing the volume occupied by the charging module in the vehicle and reducing the overall production cost of the vehicle. The method provided by the present invention collects, performs analog-to-digital conversion and task recognition on the signal of the charging pile, and enables the vehicle to start the corresponding charging mode. Without the additional setting of a protocol adapter and an additional adapter harness, the vehicle can adapt to the charging protocols of different charging piles, and realizes the indiscriminate charging mode recognition between different charging protocols through extensibility recognition, including charging type recognition and charging power limit recognition, with strong compatibility and low cost.

[0069] In one embodiment, if Figure 2 As shown, step S101 includes:

[0070] Step S201: collecting gun insertion signals from the first interface, collecting control guidance signals from the second interface, and collecting local area network communication signals from the third interface.

[0071] Step S202: converting the control guidance signal from an analog signal into a corresponding digital signal through the integrated detection module.

[0072] Further, step S202 includes:

[0073] The resistance value in the gun insertion signal is converted from an analog signal to a corresponding digital signal.

[0074] The voltage amplitude, voltage frequency and duty cycle in the control pilot signal are converted from analog signals to corresponding digital signals.

[0075] The single-line voltage or the double-line voltage in the local area network communication signal is converted from an analog signal to a corresponding digital signal.

[0076] In this embodiment, the state of the charging gun is judged by the gun insertion signal and the control guide signal to determine whether the charging gun inserted into the vehicle is in an activated state, and whether the gun insertion signal and the control guide signal meet the wake-up conditions to determine whether the vehicle-mounted integrated detection module needs to be awakened to avoid false triggering due to the insertion of an unactivated charging gun. The integrated detection module is combined with the guide circuit to convert the analog signal in the input signal into a corresponding digital signal. If the controller guide signal is a PWM signal, the duty cycle of the control guide signal can be calculated after conversion to a digital signal. The calculation of the duty cycle of the control guide signal can assist in the subsequent judgment of the charging task.

[0077] In one embodiment, step S102 includes:

[0078] The task identification is performed by integrating the detection module with the gun insertion signal, the control guidance signal and the digital signal converted from the LAN communication signal to obtain the task identification result.

[0079] If the task identification result meets the first charging task condition, the vehicle is controlled to start the national standard fast charging mode.

[0080] If the task identification result meets the second charging task condition, the vehicle is controlled to start the European standard fast charging mode.

[0081] If the task identification result meets the third charging task condition, the vehicle is controlled to start the slow charging mode.

[0082] If the task identification result meets the fourth charging condition, it is determined that the guidance system fails and the vehicle is controlled to terminate charging.

[0083] Furthermore, if Figure 6 The specific contents of each charging condition are as follows:

[0084] The first charging condition is that there is a local area network communication signal that meets a preset baud rate and there is no control guidance signal.

[0085] The second charging condition is that there is no LAN communication signal, and the duty cycle of the control pilot signal falls within the first ratio interval and the effective level is superimposed with high-frequency ripples.

[0086] The third charging condition is that there is no LAN communication signal, and the duty cycle of the control guidance signal falls into the second ratio interval.

[0087] The fourth charging condition is that there is no LAN communication signal, no control guidance signal, or the duty cycle of the control guidance signal is outside the first ratio interval and the second ratio interval, or the effective level of the control guidance signal whose duty cycle falls within the first ratio interval is not superimposed with high-frequency ripple.

[0088] As a preferred example, when the first charging condition is met, the LAN communication signal has a 250KHz baud rate signal input, and the control guide signal is no signal. At this time, the vehicle is controlled to start the national standard fast charging mode, and fast charging control is performed through the "GB / T 27930 Protocol". After the vehicle is connected to the national standard charging pile, high-current fast charging is performed.

[0089] When the second charging condition is met, the LAN communication signal is no signal, the duty cycle of the control guidance signal is 3% to 7%, and the effective level of the control guidance signal is superimposed with high-frequency ripple. At this time, the vehicle is controlled to enter the European standard fast charging mode, and fast charging is controlled through the "IEC 61851 Protocol". After the vehicle is connected to the European standard charging pile, high-current fast charging is carried out.

[0090] When the third charging condition is met, the LAN communication signal is no signal, and the duty cycle of the control guidance signal is 10% to 85%. At this time, the charging protocols of the national standard Hull and the European standard can be met at the same time. The charging current is not higher than 32A and the charging power is not higher than 7kW. Slow charging control is performed according to the "GB / T 18487.1 Protocol". The charging current limit is calculated according to the current mapping formula. After the vehicle is connected to the charging pile, slow charging is performed with the charging current limit.

[0091] When the fourth charging condition is met, it is determined that the guidance system fails and the vehicle is controlled to terminate charging.

[0092] The specific parameters of each charging condition can be adjusted as needed.

[0093] In one embodiment, if Figure 3 As shown, step S103 includes:

[0094] Step S301: mapping a first charging current limit value according to the digital signal of the resistance value in the gun insertion signal.

[0095] Step S302: mapping a second charging current limit value according to the digital signal of the duty cycle in the control pilot signal or the local area network communication signal.

[0096] Step S303: compare the first charging current limit value and the second charging current limit value, and take the smaller value as the target charging current limit value.

[0097] Step S304: selecting and starting a charging mode corresponding to the vehicle according to the target charging current limit value, and adjusting the charging current and charging power according to the target charging current limit value.

[0098] In this embodiment, the first charging current limit value reflects the maximum charging capacity of the charging gun and the charging cable, and the second charging current limit value reflects the maximum charging capacity of the charging pile. The first charging current limit value and the second charging current limit value are calculated respectively, and then compared, and the smaller value is taken as the target charging current limit value. That is, in order to ensure charging safety, the smaller charging current value is taken from the maximum charging capacity of the charging gun and the charging cable and the maximum charging capacity of the charging pile as the charging limit to ensure that the charging safety is not reduced without setting a protocol adapter.

[0099] In one embodiment, when the task identification result meets the third charging task condition, the charging current limit is calculated by a current mapping formula, and the current mapping formula is:

[0100] I max =(D*100)*C

[0101] Among them, I max is the target charging current limit value, D is the duty cycle of the control pilot signal, and C is the limit coefficient.

[0102] When the duty cycle of the control pilot signal is 10%≤D≤85%, the value of C is 0.6. max =(D*100)*0.6.

[0103] When the duty cycle of the control guidance signal is 85%<D≤90%, or the charging pile is a European standard charging pile and the duty cycle of the control guidance signal is 90%<D≤96%, the value of C is 2.5. At this time, I max =(D*100-64)*2.5 and I max ≤63.

[0104] When the duty cycle of the control pilot signal is 8%≤D<10%, I max =6.

[0105] When the charging pile is a European standard charging pile, if the duty cycle of the control guidance signal is 96%<D<96%, I max =80.

[0106] When the duty cycle of the control guidance signal is D>97%, D<3% and 7%<D<8%, the charging pile is not allowed to charge the vehicle. When 3%≤D≤7%, charging is required when digital communication is established, otherwise the charging pile is not allowed to charge the vehicle.

[0107] To summarize, the vehicle charging control guidance method adopted in this embodiment converts the input signal of the charging pile, converts the plug-in signal, the control guidance signal and the local area network communication signal from analog signals to digital signals respectively, detects the plug-in condition of the charging gun and the charging cable capacity through the mapping relationship of the plug-in signal, and then detects the charging protocol type and the specific charging task through the control guidance signal and the local area network communication signal, calculates the charging current limit under the current charging task by calculating the duty cycle of the control guidance signal, and combines the mapping relationship between the duty cycle of the control guidance signal and the charging current limit, so as to realize the signal conversion and identification of different charging protocols through a single electronic control unit by setting an integrated detection module on the electronic control unit, thereby realizing that the vehicle can perform a fully functional charging task by connecting to charging piles of different protocols.

[0108] The technical solution of the present invention also provides a vehicle, which includes a vehicle body, in which an electronic device is provided for implementing the steps of the vehicle charging control guidance method of any of the aforementioned embodiments. The vehicle can implement any of the steps of the aforementioned vehicle charging control guidance method to meet the needs of charging from charging piles of various protocols without additionally setting up a protocol adapter.

[0109] It should be understood that the order of execution of the steps in the above embodiment does not necessarily mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present invention.

[0110] like Figure 4 The figure shows a hardware structure diagram of an electronic device of the present invention, including a memory 402, a processor 401 and an electronic device program on the memory 402, and the processor 401 executes the electronic device program to implement the steps of the vehicle charging control guidance method of any of the above embodiments.

[0111] Figure 4 A processor 401 is taken as an example.

[0112] The electronic device may further include: an input device 403 and a display device 404 .

[0113] The processor 401, the memory 402, the input device 403 and the display device 404 may be connected via a bus or other means, and the figure takes the connection via a bus as an example.

[0114] The memory 402 is a non-volatile electronic device readable storage medium, which can be used to store non-volatile software programs, non-volatile electronic device executable programs and modules, such as program instructions / modules corresponding to the vehicle charging control guidance method in the embodiment of the present application. The processor 401 executes various functional applications and data processing by running the non-volatile software programs, instructions and modules stored in the memory 402, that is, implementing the vehicle charging control guidance method in the above embodiment.

[0115] The memory 402 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function; the data storage area may store data created according to the use of the vehicle charging control guidance method, etc. In addition, the memory 402 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some embodiments, the memory 402 may optionally include a memory remotely arranged relative to the processor 401, and these remote memories may be connected to a device for executing the vehicle charging control guidance method via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0116] The input device 403 can receive user clicks and generate signal inputs related to user settings and function controls of the vehicle charging control guidance method. The display device 404 can include display devices such as a display screen.

[0117] The one or more modules are stored in the memory 402 , and when executed by the one or more processors 401 , the vehicle charging control guidance method in any of the above method embodiments is executed.

[0118] When running, the electronic device disclosed in the present invention can execute all the steps of the above-mentioned vehicle charging control guidance method, convert the signal of the charging pile, then perform task identification, and start the corresponding charging mode. Without setting up an additional protocol adapter and an additional adapter harness, the purpose of enabling the vehicle to adapt to the charging protocols of different charging piles is achieved.

[0119] An embodiment of the present invention provides an electronic device readable storage medium, which stores an electronic device program / instruction. When the electronic device program / instruction is executed by the processor 401, all steps of the vehicle charging control guidance method as described above are implemented.

[0120] In the context of the present disclosure, a storage medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or apparatus. The storage medium may be a machine-readable signal medium or a machine-readable storage medium. Alternatively, the storage medium may be a non-temporary electronic device readable storage medium, for example, a non-temporary electronic device readable storage medium may be a ROM, a random access memory (Random Access Memory, RAM), a compact disc read-only memory (Compact Disc ROM, CD-ROM), a magnetic tape, a floppy disk, and an optical data storage device, etc.

[0121] An embodiment of the present invention provides an electronic device program product, including an electronic device program / instruction, which implements the steps of the vehicle charging control guidance method as described above when executed by a processor.

[0122] By running the above-mentioned electronic device program product, all steps of the vehicle charging control guidance method as described above can be executed. By converting the signal of the charging pile, then performing task identification, and starting the corresponding charging mode, the vehicle can be adapted to the charging protocols of different charging piles without setting up an additional protocol adapter and an additional adapter harness.

[0123] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A vehicle charging control guidance method, characterized in that: include: Obtaining a connection signal of a charging pile and collecting an input signal of the charging pile; Performing analog-to-digital conversion and signal recognition on the input signal through an integrated detection module, and confirming the charging task according to the recognition result; The vehicle is subjected to corresponding charging guidance control according to the charging task, so that the vehicle starts a corresponding charging mode.

2. The vehicle charging control guidance method according to claim 1, characterized in that: The input signal includes a gun insertion signal, a control guidance signal and / or a local area network communication signal; The integrated detection module detects the plug-in status, resistance value and charging cable capacity of the charging gun through the plug-in signal; The integrated detection module detects the charging task, charging voltage and charging power through the control guidance signal and the local area network communication signal.

3. The vehicle charging control guidance method according to claim 2, characterized in that: The step of performing analog-to-digital conversion on the input signal comprises: Collect the gun insertion signal from the first interface, collect the control guidance signal from the second interface, and collect the local area network communication signal from the third interface; The control pilot signal is converted from an analog signal to a corresponding digital signal by the integrated detection module.

4. The vehicle charging control guidance method according to claim 3, characterized in that: The step of converting the control guidance signal from an analog signal to a corresponding digital signal comprises: Convert the resistance value in the gun insertion signal from an analog signal to a corresponding digital signal; Converting the voltage amplitude, voltage frequency and duty cycle in the control pilot signal from analog signals to corresponding digital signals; The single-line voltage or the double-line voltage in the local area network communication signal is converted from an analog signal to a corresponding digital signal.

5. The vehicle charging control guidance method according to claim 3, characterized in that: The step of performing signal recognition on the input signal by an integrated detection module and confirming the charging task according to the recognition result includes: The integrated detection module performs task identification through the digital signal converted from the gun insertion signal, the control guidance signal and the local area network communication signal to obtain a task identification result; If the task identification result meets the first charging task condition, controlling the vehicle to start the national standard fast charging mode; If the task identification result meets the second charging task condition, controlling the vehicle to start the European standard fast charging mode; If the task identification result meets the third charging task condition, controlling the vehicle to start a slow charging mode; If the task identification result satisfies the fourth charging condition, it is determined that the guidance system fails and the vehicle is controlled to terminate charging.

6. The vehicle charging control guidance method according to claim 5, characterized in that: The first charging condition is that there is the LAN communication signal that meets the preset baud rate, and there is no control guidance signal; The second charging condition is that there is no LAN communication signal, and the duty cycle of the control guidance signal falls within the first ratio interval and the effective level is superimposed with high-frequency ripples; The third charging condition is that there is no local area network communication signal, and the duty cycle of the control guidance signal falls within the second ratio interval; The fourth charging condition is that there is no LAN communication signal, no control guidance signal, or the duty cycle of the control guidance signal is outside the first ratio interval and the second ratio interval, or the effective level of the control guidance signal whose duty cycle falls within the first ratio interval is not superimposed with high-frequency ripple.

7. The vehicle charging control guidance method according to claim 5, characterized in that: The performing corresponding charging guidance control on the vehicle according to the charging task so that the vehicle starts a corresponding charging mode includes: Mapping a first charging current limit value according to a digital signal of a resistance value in the gun insertion signal; Mapping a second charging current limit value according to the digital signal of the duty cycle in the control guidance signal or the local area network communication signal; Compare the first charging current limit value and the second charging current limit value, and take the smaller value as the target charging current limit value; A charging mode corresponding to the vehicle is selected and started according to the target charging current limit value, and a charging current and a charging power are adjusted according to the target charging current limit value.

8. The vehicle charging control guidance method according to claim 7, characterized in that: When the task identification result meets the third charging task condition, the target charging current limit value is calculated by a current mapping formula, and the current mapping formula is: Imax=(D*100)*C Among them, I max is the charging current limit, D is the duty cycle of the control pilot signal, and C is the limit coefficient.

9. An electronic device, comprising a memory, a processor, and an electronic device program on the memory, characterized in that: The processor executes the electronic device program to implement the steps of the vehicle charging control guidance method according to any one of claims 1 to 8.

10. A vehicle comprising the electronic device according to claim 9, characterized in that: The vehicle can implement the steps of the vehicle charging control guidance method described in any one of claims 1-8.

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