Communication method of alternating current charging pile and communication method of vehicle

Abstract

The invention relates to the technical field of charging, in particular to a communication method of an alternating current charging pile and a communication method of a vehicle, and the method comprises the steps: in the charging and discharging process of the alternating current charging pile and the vehicle, if at least one of the alternating current charging pile and the vehicle is off-line, the communication of the alternating current charging pile and the vehicle is carried out; and if yes, the alternating current charging pile stops sending a specified signal to the vehicle every preset time and receives real-time information sent by the vehicle. According to the invention, in the process of detecting the charging and discharging of the AC charging pile and the vehicle, the specified signal is sent to the vehicle at the preset time interval, and the real-time information sent by the vehicle is received, so that the real-time interaction can still be carried out when the vehicle and / or the AC charging pile are / is in the off-line state.

Description

Technical Field

[0001] The present disclosure relates to the field of charging technology, and in particular to a communication method for an AC charging pile and a communication method for a vehicle. Background Art

[0002] With the continuous development of the new energy industry, new energy vehicles are gaining popularity as sustainable means of transportation. Charging piles, as essential supporting infrastructure for new energy vehicles, play a crucial role in their development. However, when the AC charging pile and / or vehicle are offline, the need for real-time interaction between the AC charging pile and the vehicle cannot be met. Therefore, how to better control communication between the AC charging pile and the vehicle is a pressing technical challenge. Summary of the Invention

[0003] In order to overcome the problems existing in the related art, the present disclosure provides a communication method for an AC charging pile and a communication method for a vehicle.

[0004] A first aspect of the present disclosure provides a communication method for an AC charging pile, the method comprising: During the charging and discharging process between the AC charging pile and the vehicle, if at least one of the AC charging pile and the vehicle is offline, the AC charging pile stops sending a specified signal to the vehicle at preset intervals and receives real-time information sent by the vehicle.

[0005] Optionally, stopping sending a designated signal to the vehicle at intervals of a preset time and receiving real-time information sent by the vehicle includes: The first PWM signal is stopped from being sent to the vehicle at every preset time interval, and the vehicle is instructed to perform on-off control on a target switch to receive real-time information of the vehicle.

[0006] Optionally, after receiving the real-time information sent by the vehicle, the method further includes: When the vehicle is in an offline state and the AC charging pile is in an online state, sending real-time information of the vehicle to a server; Receive the charge and discharge instruction information transmitted by the server, and control the charge and discharge of the vehicle based on the charge and discharge instruction information.

[0007] Optionally, after receiving the real-time information sent by the vehicle, the method further includes: When the AC charging pile is in an offline state and the vehicle is in an online state, receiving charging and discharging instruction information sent by the vehicle, the charging and discharging instruction information is sent to the vehicle by the server after receiving real-time information sent by the vehicle; The charging and discharging of the vehicle is controlled based on the charging and discharging instruction information.

[0008] Optionally, after receiving the real-time information sent by the vehicle, the method further includes: When the AC charging pile and the vehicle are both in an offline state, receiving real-time information sent by the vehicle; Charging and discharging instruction information is acquired based on the real-time information, and charging and discharging of the vehicle is controlled based on the charging and discharging instruction information.

[0009] Optionally, the method further includes: When the AC charging pile is in an offline state, the charging power of the AC charging pile is reduced, and the vehicle is charged according to a first designated power.

[0010] Optionally, the method further includes: When the AC charging pile is in an offline state, the discharge power of the vehicle is reduced, and the AC charging pile is discharged according to a second specified power.

[0011] Optionally, controlling charging and discharging of the vehicle based on the charging and discharging instruction information includes: When the charge and discharge instruction information is stop instruction information, a response is made to the next real-time information sent by the vehicle, and charge and discharge are terminated.

[0012] Optionally, when the charge-discharge instruction information is stop instruction information, responding to the next real-time information sent by the vehicle includes: When the vehicle is in an offline state and the AC charging pile is in an online state, receiving the stop instruction information sent by the server and stopping sending the first PWM signal to the vehicle; Receive the real-time information sent by the vehicle next time and respond to the real-time information.

[0013] Optionally, when the charge-discharge instruction information is stop instruction information, responding to the next real-time information sent by the vehicle includes: When the AC charging pile is in an offline state and the vehicle is in an online state, the real-time information and the stop instruction information sent by the vehicle next time are received, and the real-time information is responded to.

[0014] Optionally, when the charge-discharge instruction information is stop instruction information, responding to the next real-time information sent by the vehicle includes: When the AC charging pile and the vehicle are both in an offline state, if it is determined that charging and discharging are to be terminated, stopping sending the first PWM signal to the vehicle; Receive the real-time information sent by the vehicle next time and respond to the real-time information.

[0015] Optionally, after receiving the real-time information sent by the vehicle, the method further includes: A response message is sent to the vehicle based on the real-time information, wherein the response message includes charging and discharging fee information.

[0016] Optionally, after sending response information to the vehicle based on the real-time information, the method further includes: sending a first PWM signal to the vehicle, wherein the first PWM signal is used to instruct the vehicle to close a target switch; When it is detected that the voltage value on the control pilot signal line changes from a first voltage value to a second voltage value, charging and discharging are started, and the first voltage value is greater than the second voltage value.

[0017] Optionally, the method further includes: sending a second PWM signal to the vehicle in response to a connection operation of the vehicle; If the voltage value on the control guide signal line is detected to change from the first voltage value to the second voltage value within a preset time period from sending the second PWM signal, it is determined that communication between the vehicle and the AC charging pile is possible, and the first voltage value is greater than the second voltage value.

[0018] A second aspect of the present disclosure provides a vehicle communication method, the method comprising: During the charging and discharging process between the AC charging pile and the vehicle, if at least one of the AC charging pile and the vehicle is offline, the vehicle stops receiving a designated signal from the AC charging pile at preset intervals and sends real-time information to the AC charging pile.

[0019] A third aspect of the present disclosure provides an AC charging pile, comprising: a memory having a computer program stored thereon; A processor is used to execute the computer program in the memory to implement the steps of the method of the first aspect.

[0020] A fourth aspect of the present disclosure provides a vehicle, comprising: a memory having a computer program stored thereon; A processor is used to execute the computer program in the memory to implement the steps of the method described in the second aspect.

[0021] In a fifth aspect, the present disclosure provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method described in the first and second aspects.

[0022] In a sixth aspect, the present disclosure provides a computer program product, comprising a computer program, which implements the methods described in the first and second aspects when executed by a processor.

[0023] During the charging and discharging process between the AC charging pile of the present disclosure and the vehicle, if at least one of the AC charging pile and the vehicle is offline, the AC charging pile can send a specified signal to the vehicle at intervals of a preset duration, so that the vehicle can know when to trigger the sending of real-time information through this stop operation, thereby effectively ensuring that the two can still exchange information when the vehicle and / or the AC charging pile are offline, so as to meet the communication needs between the two.

[0024] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings: Figure 1 This is an application scenario of a communication method for an AC charging pile shown in the present disclosure.

[0026] Figure 2 The figure is a schematic diagram showing an AC charging control steering circuit according to an exemplary embodiment.

[0027] Figure 3 The figure is a flow chart showing a communication method of an AC charging pile according to an exemplary embodiment.

[0028] Figure 4 The present invention is a flowchart of interaction between an AC charging pile and a vehicle in a communication method of an AC charging pile according to an exemplary embodiment.

[0029] Figure 5 The present invention is a flowchart of an interaction when a vehicle and a charging pile are both in an online state in a communication method of an AC charging pile according to an exemplary embodiment.

[0030] Figure 6 The figure is a flow chart showing another communication method of an AC charging pile according to an exemplary embodiment.

[0031] Figure 7 This is a schematic diagram illustrating encoding and defining actions of a target switch in another communication method for an AC charging pile according to an exemplary embodiment.

[0032] Figure 8This is an example diagram of interaction when a vehicle is in an offline state and an AC charging pile is in an online state in another communication method of an AC charging pile according to an exemplary embodiment.

[0033] Figure 9 This is an example diagram of interaction when a vehicle is in an online state and an AC charging pile is in an offline state in another communication method of an AC charging pile according to an exemplary embodiment.

[0034] Figure 10 This is an example diagram of interaction when a vehicle and an AC charging pile are both in an offline state in another communication method of an AC charging pile according to an exemplary embodiment.

[0035] Figure 11 The present invention is a flowchart showing a vehicle communication method according to an exemplary embodiment.

[0036] Figure 12 The figure is a block diagram showing a communication device for an AC charging pile according to an exemplary embodiment.

[0037] Figure 13 The present invention is a block diagram showing a communication device of a vehicle according to an exemplary embodiment.

[0038] Figure 14 is a block diagram of a vehicle according to an exemplary embodiment. DETAILED DESCRIPTION

[0039] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0040] The following describes embodiments of the present disclosure in more detail with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for illustrative purposes only and are not intended to limit the scope of protection of the present disclosure.

[0041] It should be understood that the various steps described in the method embodiments of the present disclosure may be performed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present disclosure is not limited in this respect.

[0042] As used herein, the term "including" and its variations are open-ended, i.e., "including but not limited to." The term "based on" means "based, at least in part, on." The term "one embodiment" means "at least one embodiment," the term "another embodiment" means "at least one additional embodiment," and the term "some embodiments" means "at least some embodiments." Other terms are defined in the following description.

[0043] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0044] Figure 1 This is an application scenario of a communication method for an AC charging pile shown in the present disclosure. Figure 1 As shown, the vehicle 1 is connected to the AC charging pile 2 for charging and discharging. The vehicle 1 can be an electric vehicle or a hybrid vehicle, or other equipment that can be charged using the AC charging pile 2.

[0045] In some embodiments, when vehicle 1 discharges power to AC charging station 2, if it is determined that AC charging station 2 itself is equipped with an energy storage element, the electrical energy output by vehicle 1 can be stored in the energy storage element of AC charging station 2, thereby enabling vehicle 1 to discharge power to AC charging station 2. Here, the energy storage element of AC charging station 2 can receive electrical energy from vehicle 1 through a built-in electronic control system.

[0046] Optionally, the electrical energy released by vehicle 1 can also be transmitted to the grid via AC charging station 2. For example, when the grid is experiencing peak power consumption and vehicle 1 is idle, vehicle 1 can replenish the grid's electrical energy by discharging, thereby achieving the discharge of energy from vehicle 1 to the grid. Subsequently, when the grid is idle, the grid can charge vehicle 1 via AC charging station 2 to compensate for the energy released by the vehicle.

[0047] The server 3 can be connected to the vehicle 1 and the charging pile 2 respectively. The server 3 can be a cloud server or a physical server, which is not limited here. In addition, the server 3 can also be called a platform, which can be a charging pile operation platform or a vehicle operation platform.

[0048] Figure 2 is a schematic diagram showing an AC charging control steering circuit according to an exemplary embodiment. Figure 2 The circuit shown is the AC charging control pilot circuit specified in Electric Vehicle Conductive Charging System Part 1: General Requirements (GB / T 18487.1-2015).

[0049] like Figure 2 As shown, the power supply device includes a power supply control device, a switch S1, a resistor R1, contactors K1 and K2. The power supply device can be the AC charging pile in the present disclosure. The electric vehicle (i.e., vehicle) includes an onboard charger, a vehicle control device, a switch S2, resistors R2 and R3. The vehicle interface includes a switch S3, resistors R4 and Rc, a CC (Charging Connection Confirmation) interface, and a CP (Control Pilot) interface.

[0050] The voltage value on the control and guidance signal line detected by the charging pile is the voltage value at detection point 1. This control and guidance signal line can also be called the CP signal line, and the signal on the control and guidance signal line can be called the CP signal. When the AC charging pile's charging gun is not connected to a vehicle, switch S1 is connected to the +12V terminal, and the voltage value on the CP signal line detected by the charging pile is 12V. After the vehicle is connected to the AC charging pile's charging gun, the voltage value on the CP signal line detected by the charging pile becomes approximately 9V due to the voltage divider effect of the resistor. At this time, switch S1 will connect to the PWM (Pulse Width Modulation) terminal, and the charging pile can send a PWM signal to the vehicle via the CP signal line.

[0051] In related technologies, AC charging stations and vehicles typically interact before charging or discharging begins, and the interaction between the vehicle and the AC charging station is one-way, meaning there is only one-way communication from the AC charging station to the vehicle. This means that these existing communication methods cannot meet the requirements for real-time interaction between AC charging stations and vehicles.

[0052] In order to solve the above problems, the present invention discloses that during the charging and discharging process between the AC charging pile and the vehicle, if the AC charging pile and / or the vehicle is in an offline state, the AC charging pile can stop sending a specified signal to the vehicle at every preset time interval and receive real-time information sent by the vehicle. In this way, even if the vehicle or the AC charging pile is in an offline state, the two can realize the real-time interaction between the vehicle and the pile.

[0053] Figure 3 This is a flow chart showing a communication method of an AC charging pile according to an exemplary embodiment. Figure 3 , the communication method of the AC charging pile may include the following steps.

[0054] In step S110 , during the charging and discharging process between the AC charging pile and the vehicle, if at least one of the AC charging pile and the vehicle is offline, the AC charging pile stops sending a designated signal to the vehicle at preset intervals and receives real-time information sent by the vehicle.

[0055] In the disclosed embodiments, the AC charging pile and the vehicle may be charged and discharged in a state where the AC charging pile has authenticated the vehicle and entered the charging and discharging process. That is, during the charging and discharging process, if at least one of the AC charging pile and / or the vehicle is detected to be offline, the AC charging pile may stop sending a specified signal to the vehicle at predetermined intervals and receive real-time information from the vehicle.

[0056] As an example, when detecting that an AC charging pile is charging a vehicle, if at least one of the AC charging pile and / or the vehicle is offline, the AC charging pile can stop sending a specified signal to the vehicle at every preset time interval and receive real-time information sent by the vehicle.

[0057] As another example, when it is detected that a vehicle is discharging an AC charging pile, if at least one of the AC charging pile and / or the vehicle is offline, the AC charging pile can stop sending a specified signal to the vehicle at every preset time interval and receive real-time information sent by the vehicle.

[0058] That is to say, no matter when the AC charging pile is charging the vehicle or when the vehicle is discharging the AC charging pile, when the AC charging pile and / or the vehicle are offline, the embodiment of the present disclosure can stop sending the specified signal to the vehicle at every preset time interval, that is, the embodiment of the present disclosure can be applied to the AC charging pile charging scenario, and can also be applied to the vehicle discharging scenario. The embodiment of the present disclosure does not explicitly limit which specific scenario it is applied to.

[0059] During the charging and discharging process between the AC charging pile and the vehicle, the AC charging pile may be offline or online. Similarly, during the charging and discharging process between the AC charging pile and the vehicle, the vehicle may be offline or online. These states can be collectively referred to as communication states. When at least one of the vehicle and the AC charging pile is offline, the AC charging pile can achieve interaction with the vehicle and the charging pile by stopping sending specified signals to the vehicle at preset intervals.

[0060] In some embodiments, after a vehicle is connected to an AC charging station and enters the charging and discharging process, the communication status of the vehicle and / or the AC charging station may change. Specifically, the AC charging station's charging gun is inserted into the vehicle's charging port for communication, and after communication is completed, the charging and discharging process begins. Prior to this, the AC charging station is in an online state, and the vehicle may be in either an online or offline state. As the charging and discharging process progresses, the communication status of the vehicle and / or the AC charging station may change.

[0061] For example, if the vehicle's communication status switches from online to offline, the AC charging station's communication status remains unchanged, that is, it is in the online state. For another example, if the vehicle's communication status switches from offline to online, the AC charging station's communication status switches from online to offline.

[0062] As an optional method, when the charging gun of an AC charging pile is inserted into the charging port of a vehicle for communication, the embodiment of the present disclosure can detect whether a vehicle connection operation has been received, that is, whether the charging gun is inserted into the AC charging pile. If a vehicle connection operation is detected, the AC charging pile can send a second PWM signal to the vehicle.

[0063] For example, if the AC charging station detects that the voltage on the control and guidance signal line changes from 12V to 9V, it determines that the vehicle is connected to the AC charging station. Upon detecting that the vehicle is connected to the AC charging station, the AC charging station may send a second PWM signal to the vehicle for a preset duration. Here, the duty cycle of the second PWM signal may be 5%.

[0064] If the voltage on the control and guidance signal line changes from a first voltage value to a second voltage value within a preset time period after the second PWM signal is sent, communication between the vehicle and the AC charging station is determined to be possible. The first voltage value may be greater than the second voltage value. For example, the first voltage value is 9V and the second voltage value is 6V.

[0065] Optionally, if the vehicle receives the second PWM signal sent by the AC charging pile, that is, a PWM signal with a duty cycle of 5%, the target switch can be controlled to close as the vehicle's response to the second PWM signal. Here, the target switch can be Figure 2 After the target switch in the vehicle is closed, the voltage on the control pilot signal line detected by the AC charging pile becomes approximately 6V. The AC charging pile can determine that the two can communicate via the first type of PWM signal. That is, the vehicle can recognize the first type of PWM signal sent by the AC charging pile and can enter the communication process between the vehicle and the AC charging pile.

[0066] If the AC charging pile does not detect that the voltage value on the control guide signal line changes from the first voltage value to the second voltage value within the preset time after sending the second PWM signal, it can be determined that the vehicle and the AC charging pile cannot communicate through the first type of PWM signal. In this case, the communication process will not be entered. The AC charging pile can send the second type of PWM signal to the vehicle to guide the vehicle to perform the charging and discharging process.

[0067] The first and second types of PWM signals have different functions. The first type of PWM signal can be used to exchange information between the vehicle and the AC charging station during communication, with the first interval being, for example, (0%, 100%). The second type of PWM signal can be used to indicate the maximum charge and discharge current the AC charging station can provide, guiding the vehicle into the charging and discharging process. The AC charging station can use the second type of PWM signal to instruct the vehicle to close a target switch, thereby controlling charging and discharging through the AC charging station. The target switch is used to open or close the charging and discharging circuit between the vehicle and the AC charging station.

[0068] With this technical solution, after a vehicle is connected to an AC charging station, the AC charging station can send a second PWM signal to the vehicle. The vehicle responds to this second PWM signal by controlling the closing of a target switch. The AC charging station then detects the voltage change on the control guidance signal line and confirms that communication between the vehicle and the AC charging station is possible.

[0069] In order to better illustrate the interaction process between the AC charging pile and the vehicle, the embodiment of the present disclosure provides the following example: Figure 4 The interaction example diagram shown is based on Figure 4 As can be seen, after the AC charging station's charging gun is plugged into the vehicle, the disclosed embodiment can enter the normal charging and discharging process. Specifically, the AC charging station can close switch S1, at which point the CP signal voltage amplitude can change from 12V to 9V. At this point, the AC charging station can send a second PWM signal to the vehicle, such as a 1s PWM signal with a 5% duty cycle.

[0070] Optionally, after the vehicle detects the second PWM signal persisting for a first duration, it can close target switch S2, at which point the CP signal voltage amplitude can change from 9V to 6V. Here, the first duration can be 500ms. After detecting the 6V CP signal persisting for the first duration, the AC charging station can send a VIN code request to the vehicle and receive the vehicle's response VIN code to authenticate the VIN code.

[0071] After authentication, the AC charging station can send a data transmission process exit command to the vehicle. Specifically, after the VIN transmission process is completed between the AC charging station and the vehicle, the AC charging station can send a data transmission process exit command to the vehicle, instructing the vehicle to control the target switch. In other words, after receiving the transmission process exit command, the vehicle can disconnect the target switch S2, and the voltage amplitude of the CP signal can be increased from 6V to 9V.

[0072] It should be noted that during the process of the AC charging pile authenticating the vehicle, the vehicle may be in an online state or an offline state.

[0073] When the AC charging station detects the aforementioned voltage amplitude change, it can upload the vehicle VIN code reception status and data transmission process exit status to the server, and receive the charge and discharge instructions (charge instruction / discharge instruction) and maximum allowable charge and discharge current (maximum allowable charge current / maximum allowable discharge current) issued by the server. The VIN code reception status may include specific information about the vehicle VIN code, and the data transmission process exit status may indicate the cessation of data transmission between the vehicle and the AC charging station.

[0074] On this basis, the AC charging station can send a first PWM signal to the vehicle to instruct the vehicle to close the target switch S2. At this time, the CP signal voltage amplitude can become 6V. After receiving the 6V CP signal and determining that the CP signal has persisted for a second duration, the AC charging station can close the AC contactor to begin charging or discharging. For example, the second duration can be 1s.

[0075] Figure 4 This is the interactive process that triggers charging and discharging. Before charging and discharging, the AC charging pile and the vehicle can first authenticate each other through interaction. After authentication is passed, the charging and discharging process begins. It should be noted that the vehicle and the AC charging pile are both online during the entire interactive process, which ensures the normal triggering of charging and discharging.

[0076] After the AC charging pile closes its AC contactor and begins charging and discharging, the vehicle and the AC charging pile can interact in real time even when the vehicle, the AC charging pile, or both are offline. If at least one of the AC charging pile and the vehicle is offline, the AC charging pile can stop sending designated signals to the vehicle at preset intervals and receive real-time information from the vehicle. This ensures that vehicle-pile interaction can be achieved even when at least one of the two is offline.

[0077] Optionally, when both the AC charging pile and the vehicle are online, the vehicle and the AC charging pile may not interact directly during the charging and discharging process, but may interact with each other through the server as an intermediary, so that the charging and discharging process is controlled by the server. The control process can be as follows: Figure 5 shown.

[0078] based on Figure 5As can be seen, when both the vehicle and the AC charging pile are online, the AC charging pile and the server can receive real-time information sent by the vehicle. Using this real-time information, the AC charging pile can control the vehicle's charging and discharging. Simultaneously, the server can obtain charging and discharging instructions (charging instructions or discharging instructions) based on the vehicle's real-time information, such as sending a stop instruction to the AC charging pile. Furthermore, upon receiving the stop instruction, the AC charging pile can disconnect the AC contactor to terminate charging or discharging. Here, the stop instruction can be either a stop charging instruction or a stop discharging instruction.

[0079] In addition, when the vehicle and / or AC charging pile is offline, the AC charging pile and the vehicle can interact in real time via CP signals. The interaction process can be determined based on the specific offline device. Different offline devices will correspond to different devices controlling the interaction process. For example, when it is determined that the vehicle is offline or the AC charging pile is offline, the embodiment of the present disclosure can control the interaction process through the server. When both the vehicle and the AC charging pile are offline, the embodiment of the present disclosure can control the interaction process through the AC charging pile.

[0080] After receiving the real-time information from the vehicle, the AC charging station can send the vehicle the charging and discharging fee information for this charge and discharge process, and then send the charge and discharge duty cycle (first PWM signal) to complete the charge and discharge process. Finally, the disclosed embodiment can control the end of charging and discharging by the server or AC charging station based on the offline status of the vehicle and AC charging station.

[0081] It should be noted that during the communication process, the vehicle can be used to send real-time information to the AC charging station by controlling the open or closed duration of the target switch within a time period. The AC charging station can be used to interpret the information sent by the vehicle based on the voltage changes on the control guidance signal line. Therefore, the disclosed embodiments can achieve real-time, two-way interaction between the AC charging station and the vehicle through CP signals.

[0082] In the embodiment of the present disclosure, when the AC charging pile is connected to the vehicle, if at least one of the AC charging pile and the vehicle is in an offline state, the AC charging pile can stop sending a specified signal to the vehicle at intervals of a preset time, so that the vehicle can be informed through the stop operation that it is offline with at least one of the AC charging piles. On this basis, the AC charging pile can receive real-time information from the vehicle, so that communication needs can still be met between the AC charging pile and the vehicle in the event of offline.

[0083] Figure 6 is a flow chart showing another communication method of an AC charging pile according to an exemplary embodiment. Figure 6 , the communication method of the AC charging pile may include the following steps.

[0084] In step S210, during the charging and discharging process between the AC charging pile and the vehicle, if at least one of the AC charging pile and the vehicle is offline, the AC charging pile stops sending the first PWM signal to the vehicle at intervals of a preset duration and instructs the vehicle to control the on and off of the target switch to receive real-time information from the vehicle.

[0085] Alternatively, the AC charging station can stop sending the designated signal to the vehicle at preset intervals by stopping sending the first PWM signal. That is, during charging and discharging, if at least one of the AC charging station and the vehicle goes offline, the AC charging station can stop sending the first PWM signal to the vehicle at preset intervals and instruct the vehicle to turn on and off a target switch to receive real-time information from the vehicle.

[0086] As described above, during the charging and discharging process between the AC charging pile and the vehicle, if at least one of the AC charging pile and the vehicle goes offline, the AC charging pile can stop sending a specified signal to the vehicle at intervals of a preset duration. Specifically, the AC charging pile can stop sending the first PWM signal to the vehicle at intervals of a preset duration.

[0087] For example, after detecting that the vehicle and / or AC charging pile is offline, the AC charging pile may stop sending the duty cycle (first PWM signal) for 1 second every one minute. This stop operation instructs the vehicle to disconnect the target switch S2, and then shake the target switch S2 to send real-time information such as the battery's state of charge (SOC), battery temperature, and charge / discharge current to the AC charging pile. In other words, the real-time information received by the AC charging pile may be sent by the vehicle by shaking the target switch S2.

[0088] It should be noted that after the AC charging pile stops sending the first PWM signal to the vehicle at preset intervals, it can also disconnect the AC contactor of the AC charging pile. On this basis, the vehicle is instructed to control the on-off of the target switch to receive real-time information from the vehicle and respond to the real-time information. Here, the first PWM signal can be called a charge-discharge PWM. During the transmission of this first PWM signal, the AC contactor and target switch S2 of the AC charging pile can both be in a closed state. That is, the first PWM is mainly used to indicate the maximum charge and discharge current that the AC charging pile can provide.

[0089] In other words, when the AC charging pile sends the first PWM signal to the vehicle, it indicates that both are in the charging and discharging process. Conversely, when the AC charging pile stops sending the first PWM signal to the vehicle, the charging and discharging process is interrupted. At this point, the AC charging pile and the vehicle can enter the communication process. That is, when the first PWM signal stops, the vehicle and the AC charging pile can exchange information.

[0090] In summary, when the AC charging pile detects that the vehicle and / or AC charging pile is offline, it can stop sending the first PWM signal to the vehicle at preset intervals and disconnect the AC charging pile's AC contactor. Here, the preset duration can be 1 minute. Based on this disconnection operation, the AC charging pile can instruct the vehicle to turn target switch S2 on and off to receive and respond to real-time information from the vehicle.

[0091] As mentioned above, real-time vehicle information, including SOC, battery temperature, and charge / discharge current, can be transmitted via target switch jitter. In other words, the vehicle can control the duration of the target switch's opening and closing times within a time period to send real-time information to the AC charging station. The AC charging station can then interpret the vehicle's real-time information based on voltage changes on the control guidance signal line.

[0092] Figure 7 FIG. 1 is a schematic diagram showing an exemplary coding definition of the target switch action. Figure 7 As shown in the figure, t_close represents the duration that the target switch is continuously closed within a time period T, and t_open represents the duration that the target switch is continuously open within a time period T. When the target switch is closed, the voltage on the control and guidance signal line detected by the AC charging pile is 6V. When the target switch is open, the voltage on the control and guidance signal line detected by the AC charging pile is 9V. The falling edge of the signal, that is, the moment when the voltage on the control and guidance signal line changes from 9V to 6V, can be regarded as the end time of a time period. .in, It can be the duration of a time period T, and Value_S2 represents the proportion of the duration that the target switch is continuously off within a time period.

[0093] The disclosed embodiment can encode and define the real-time information sent by the vehicle to the AC charging station by switching the target switch during the communication process. For example, setting Value_S2 to 20% indicates information 0, Value_S2 to 40% indicates information 1, Value_S2 to 60% indicates the start bit, and Value_S2 to 80% indicates the end bit.

[0094] Taking Value_S2 as 20% as an example, assuming a time period of 10 seconds, within these 10 seconds, the vehicle can control the target switch to be continuously closed for 8 seconds and continuously open for 2 seconds. The AC charging pile detects the voltage change on the control guidance signal line. Within a time period, the voltage value is 6V for 8 seconds and the voltage value is 9V for 2 seconds. If the AC charging pile detects such a voltage change within a time period, the information sent by the vehicle is decoded as 0 based on the voltage change.

[0095] In addition, the embodiment of the present disclosure can also express Value_S2 by the proportion of the duration of the target switch being continuously closed within a time period, that is, , when Value_S2 is expressed as a percentage of the target switch closing duration. For example, setting Value_S2 to 80% indicates message 0, Value_S2 to 60% indicates message 1, Value_S2 to 40% indicates the start position, and Value_S2 to 20% indicates the end position.

[0096] It should be noted that the above examples of Value_S2 being 20%, 40%, etc. are for explanation only and are not intended to limit the implementation manner.

[0097] Through the above technical solution, the coding range of Value_S2 can be defined as (0%, 100%), and the AC charging pile can analyze the real-time information sent by the vehicle based on the voltage changes on the control guidance signal line.

[0098] In order to better illustrate the communication process between the AC charging pile and the vehicle, the embodiment of the present disclosure provides Figure 8 、 Figure 9 and Figure 10 The example diagram shown. Figure 8 This is an example diagram of the interaction between the vehicle, AC charging pile, and server when the vehicle is offline and the AC charging pile is online; Figure 9 This is an example diagram of the interaction between the vehicle, AC charging pile, and server when the vehicle is online and the AC charging pile is offline; Figure 10 This diagram shows an example of the interaction between a vehicle and an AC charging pile when both the vehicle and the AC charging pile are offline.

[0099] based on Figures 8 to 10As can be seen, when the vehicle and / or AC charging pile detects that they are offline, the AC charging pile can stop sending the duty cycle (first PWM signal) to the vehicle for 1 second every minute and disconnect the AC contactor. After the vehicle detects that the first PWM signal has stopped, it can disconnect the target switch S2, which can then be used to transmit real-time information such as the SOC, battery temperature, and charge and discharge current to the AC charging pile through the jitter of the target switch S2.

[0100] After receiving the real-time information, the AC charging station can respond to it. That is, after receiving the real-time information sent by the vehicle, the AC charging station can send a response message to the vehicle based on the real-time information. Here, the response information may include charging and discharging fee information, which can be calculated by the AC charging station after receiving the real-time information sent by the vehicle.

[0101] It should be noted that during the process of charging a vehicle by an AC charging pile, after receiving real-time information sent by the vehicle, the AC charging pile can send charging fee information to the vehicle based on the real-time information. The charging information at this time may be the fees that the vehicle needs to pay to the AC charging pile (AC charging pile platform).

[0102] Optionally, during the process of the AC charging pile discharging the vehicle, after receiving real-time information sent by the vehicle, the AC charging pile can send discharge charging information to the vehicle based on the real-time information. The charging information at this time can be the fees that the AC charging pile (AC charging pile platform) needs to pay to the vehicle.

[0103] Based on this, the AC charging pile can send a first PWM signal to the vehicle, where the first PWM signal can be used to instruct the vehicle to close the target switch. Subsequently, when the voltage on the control guidance signal line changes from the first voltage value to the second voltage value, the AC charging pile can begin charging or discharging (start charging / start discharging), at which point it can control the AC contactor to close. The first voltage value can be greater than the second voltage value.

[0104] For example, after sending a response message to the vehicle, the AC charging pile can send a charge / discharge duty cycle (a first PWM signal) to the vehicle. Upon receiving the signal, the vehicle can close the target switch S2. At this time, the CP signal voltage amplitude can change from 9V to 6V. Based on this, when the AC charging pile receives a 6V CP signal, and this 6V CP signal lasts for 1 second, it can close the AC contactor to begin charging and discharging.

[0105] As another optional method, when the vehicle is offline and the AC charging pile is online, the AC charging pile can send the real-time information of the vehicle to the server, and then receive charging and discharging indication information from the server, and control the charging and discharging of the vehicle based on the charging and discharging indication information.

[0106] Since a vehicle cannot upload real-time information to the server when it's offline, the server can send this offline status to the AC charging station upon detecting the vehicle's offline state. In other words, the vehicle's offline status can be received by the AC charging station from the server. This means that upon detecting the vehicle's offline state, the server can send the vehicle's offline status to the AC charging station. Subsequently, upon receiving real-time information from the vehicle, the AC charging station can send a response message to the vehicle to initiate the charging and discharging process. Furthermore, the AC charging station can forward the received real-time vehicle information to the server, essentially uploading the vehicle's information to the server.

[0107] On this basis, the AC charging pile can receive the charge and discharge instruction information sent by the server and control the charging and discharging of the vehicle based on this charge and discharge instruction information. The charge and discharge instruction information can be obtained by the server when it receives real-time information sent by the vehicle. For example, the charge and discharge instruction information may include stop instruction information. If the server determines to end charging and discharging based on the real-time information of the vehicle, it can send a stop instruction information to the AC charging pile. After receiving the stop instruction information, the AC charging pile can respond to the next real-time information sent by the vehicle and end charging and discharging.

[0108] In other words, when charging and discharging need to end, the server can send a stop instruction to the AC charging pile. Upon receiving this stop instruction, the AC charging pile can stop sending the duty cycle (first PWM signal) to the vehicle. After receiving the next real-time information from the vehicle, the AC charging pile can reply with the last real-time information and then disconnect the AC contactor to end charging and discharging. Otherwise, the AC charging pile can stop sending the first PWM signal to the vehicle at preset intervals and disconnect the AC charging pile's AC contactor, enabling communication between the vehicle and the pile and switching between charging and discharging, thereby achieving real-time interaction between the AC charging pile and the vehicle.

[0109] That is to say, when the vehicle is offline and the AC charging pile is online, the AC charging pile can receive the stop instruction information sent by the server and stop sending the first PWM signal to the vehicle. After that, the AC charging pile can receive the real-time information sent by the vehicle next time and can respond to the real-time information.

[0110] like Figure 8As shown, after receiving the stop indication information (charging stop instruction / discharging stop instruction) sent by the server, the AC charging pile can stop sending the duty cycle, where the duty cycle can be the first PWM signal, that is, stop sending the first PWM signal to the vehicle. When the vehicle detects that the first PWM signal stops sending, it can send the last real-time information. After the AC charging pile responds to the last real-time information, it can disconnect the AC contactor to end charging and discharging.

[0111] Optionally, when the AC charging station is offline and the vehicle is online, the AC charging station can receive charging and discharging instruction information sent by the vehicle. This charging and discharging instruction information can be sent to the vehicle by the server after receiving real-time information from the vehicle. Based on this, the AC charging station can control the charging and discharging of the vehicle based on the charging and discharging instruction information.

[0112] When in an offline state, the AC charging pile cannot upload its interaction with the vehicle to the server, nor can it receive charging and discharging instruction information from the server. In this case, the embodiment of the present disclosure can reduce the charging power of the AC charging pile and charge the vehicle according to the first specified power.

[0113] For example, an AC charging station can charge a vehicle at half its maximum supported charging power. The interaction between the AC charging station and the vehicle may include VIN code reception, data transmission process exit, and real-time vehicle information. Charge and discharge indication information may include charge and discharge instructions, maximum allowable charge and discharge current, and stop indication information.

[0114] Optionally, when the AC charging pile is offline, embodiments of the present disclosure may also reduce the vehicle's discharge power and discharge the AC charging pile according to a second specified power. For example, the AC charging pile may reduce the vehicle's discharge power by limiting the power, or may send a power reduction instruction to the vehicle to control the vehicle to reduce the discharge power through the power reduction instruction. For example, the vehicle may be instructed to discharge the AC charging pile at half of its maximum supported discharge power.

[0115] In order to ensure normal interaction between the vehicle and the AC charging pile when the AC charging pile is offline, the embodiment of the present disclosure can transmit data between the vehicle and the server, and forward the information sent by the server to the AC charging pile through the CP signal.

[0116] For example, the offline status of the AC charging station can be received by the vehicle from a server. That is, when the server detects that the AC charging station is offline, it can send this offline status to the vehicle. The vehicle can then send real-time information to the AC charging station via a jittering method. Furthermore, when the AC charging station is offline, the vehicle can upload its real-time information to the server.

[0117] On this basis, the AC charging pile can receive charging and discharging instruction information sent by the vehicle. This charging and discharging instruction information can be sent to the vehicle by the server after receiving real-time information from the vehicle. For example, the charging and discharging instruction information may include stop instruction information (charging stop instruction / discharging stop instruction). If the server determines to end charging and discharging based on the real-time information sent by the vehicle, it can send the stop instruction information to the vehicle. After receiving the stop instruction information, the vehicle can transmit the stop instruction information to the AC charging pile by shaking the target switch.

[0118] In other words, the AC charging pile can receive the stop instruction information sent by the vehicle and can end charging and discharging after receiving the stop instruction information.

[0119] Furthermore, when charging or discharging needs to be terminated, the server can send a stop instruction to the vehicle, which can then forward the information to the AC charging station. This means the vehicle can then forward the information to the server the next time it interacts with the AC charging station. The stop instruction can be received simultaneously with the vehicle's real-time information, or separately. The order in which the two are received can be determined based on actual circumstances.

[0120] After receiving the real-time information and stop instruction information sent by the vehicle, the AC charging pile can reply to the next real-time information sent by the vehicle, that is, reply to the last real-time information, and then disconnect the AC contactor to end charging and discharging. Otherwise, the AC charging pile can stop sending the first PWM signal to the vehicle at preset intervals and disconnect the AC contactor of the AC charging pile, enabling communication between the vehicle and the charging pile and switching between charging and discharging, thereby realizing real-time interaction between the AC charging pile and the vehicle.

[0121] That is, when the AC charging pile is in an offline state and the vehicle is in an online state, the AC charging pile can receive the real-time information and stop instruction information sent by the vehicle next time and respond to the real-time information.

[0122] like Figure 9As shown, after receiving the stop instruction information (charging stop instruction / discharging stop instruction) sent by the server, the vehicle can send a stop instruction information the next time it interacts with the AC charging pile. The AC charging pile can reply with the last real-time information, and then the AC contactor can be disconnected to end charging and discharging.

[0123] Optionally, when the AC charging pile and the vehicle are in an offline state, the AC charging pile can receive real-time information sent by the vehicle, and based on the real-time information, the AC charging pile can obtain charging and discharging indication information, and based on the charging and discharging indication information, the AC charging pile can control the charging and discharging of the vehicle.

[0124] When in an offline state, the AC charging station cannot upload its interaction with the vehicle to the server, nor can it receive charging and discharging instructions from the server. Simultaneously, the vehicle cannot upload real-time information to the server. In this case, the AC charging station can reduce its charging power and charge the vehicle according to the first specified power. For example, the AC charging station can charge the vehicle at half its maximum supported charging power.

[0125] As above, when the AC charging pile and the vehicle are both in an offline state, the embodiment of the present disclosure may also reduce the discharge power of the vehicle and discharge the AC charging pile according to the second designated power.

[0126] In order to ensure normal interaction between the vehicle and the AC charging pile when both the AC charging pile and the vehicle are in an offline state, the embodiment of the present disclosure can obtain charging and discharging indication information through the AC charging pile.

[0127] The AC charging station can analyze the real-time information transmitted by the vehicle through vibration. Based on the analysis results, the AC charging station can determine whether to end charging or discharging. If so, it can stop sending the duty cycle (first PWM signal) to the vehicle. After receiving the real-time information sent by the vehicle, the AC charging station can reply with the last real-time information and then disconnect the AC contactor to end charging or discharging.

[0128] That is, when both the AC charging pile and the vehicle are in an offline state, if the AC charging pile determines that charging and discharging are finished, it can stop sending the first PWM signal to the vehicle. On this basis, it receives the next real-time information sent by the vehicle and responds to the real-time information.

[0129] like Figure 10As shown in the figure, during the charging and discharging process, the AC charging pile can determine whether to end charging and discharging based on real-time information such as the SOC and battery temperature sent by the vehicle. If it determines that charging and discharging should be ended, it can stop sending the duty cycle. After receiving the next real-time information sent by the vehicle, the AC charging pile can reply with the last real-time information and then disconnect the AC contactor to end charging and discharging.

[0130] The disclosed embodiments enable real-time, two-way interaction between the AC charging pile and the vehicle in four scenarios: when both the vehicle and the AC charging pile are online, when the vehicle is offline, when the AC charging pile is offline, and when both the vehicle and the AC charging pile are offline. This not only avoids the problem of the server being unable to control the charging and discharging process between the vehicle and the AC charging pile due to the vehicle or the AC charging pile being offline, but also improves the stability and safety of the charging and discharging process. Furthermore, the disclosed embodiments enable interaction between the AC charging pile and the vehicle without the need for additional interactive equipment or hardware changes, thus ensuring efficient interaction between the vehicle and the pile while also reducing interaction costs.

[0131] Figure 11 This is a flow chart showing a vehicle communication method according to an exemplary embodiment. Figure 11 , the vehicle communication method may include the following steps.

[0132] In step S310, during the charging and discharging process between the AC charging pile and the vehicle, if at least one of the AC charging pile and the vehicle is offline, the vehicle stops receiving a designated signal from the AC charging pile at a preset time interval and sends real-time information to the AC charging pile.

[0133] In an embodiment of the present disclosure, during the process of charging and discharging a vehicle through an AC charging pile, if the AC charging pile and / or the vehicle is offline, the vehicle can stop receiving a specified signal from the AC charging pile at intervals of a preset time and send real-time information to the AC charging pile.

[0134] In some embodiments, the vehicle may stop receiving the first PWM signal from the AC charging pile at intervals of a preset duration, and perform on-off control on the target switch to send real-time information to the AC charging pile.

[0135] In other embodiments, after the vehicle sends real-time information to the AC charging station, if the vehicle is offline and the AC charging station is online, the vehicle can send the real-time information to the server through the AC charging station. The vehicle can then charge and discharge based on the charge and discharge instruction information sent by the server to the AC charging station.

[0136] In other embodiments, after the vehicle sends real-time information to the AC charging pile, if the AC charging pile is offline and the vehicle is online, the vehicle can receive charge and discharge instruction information from the server and send the charge and discharge instruction information to the AC charging pile to instruct the AC charging pile to control the charging and discharging of the vehicle. The charge and discharge instruction information can be sent to the vehicle by the server after receiving the real-time information sent by the vehicle.

[0137] In other embodiments, after the vehicle sends real-time information to the AC charging pile, when both the AC charging pile and the vehicle are in an offline state, the vehicle can send real-time information to the AC charging pile to instruct the AC charging pile to obtain charging and discharging indication information based on the real-time information, and control the charging and discharging of the vehicle based on the charging and discharging indication information.

[0138] In other embodiments, when the charge and discharge instruction information is stop instruction information, the vehicle may send the next real-time information to the AC charging pile and instruct the AC charging pile to end charging and discharging.

[0139] In other embodiments, when the vehicle is offline and the AC charging pile is online, the vehicle stops receiving the first PWM signal from the AC charging pile. The stopping operation may be triggered by the AC charging pile receiving a stop instruction message sent by the server. Then, the vehicle sends the next real-time information to the AC charging pile and receives a response from the AC charging pile to the real-time information.

[0140] In other embodiments, when the AC charging pile is offline and the vehicle is online, the vehicle may send the next real-time information and stop instruction information to the AC charging pile, and receive a response from the AC charging pile to the real-time information.

[0141] In other embodiments, when both the AC charging pile and the vehicle are in an offline state, if it is determined that charging and discharging are terminated, the vehicle can stop receiving the first PWM signal, and send the next (last) real-time information to the AC charging pile, and receive a response from the AC charging pile to the real-time information.

[0142] In some embodiments, the vehicle may receive response information sent by the AC charging station in response to the real-time information. The response information may include charging and discharging charge information.

[0143] In some embodiments, the vehicle can receive a first PWM signal transmitted by an AC charging station and close a target switch based on the first PWM signal. At this time, charging and discharging can begin when the voltage on the control guidance signal line changes from a first voltage value to a second voltage value, where the first voltage value is greater than the second voltage value.

[0144] Figure 12FIG. 1 is a block diagram of a communication device for an AC charging pile according to an exemplary embodiment. Figure 12 The communication device 400 of the AC charging pile shown may include a first control module 410 .

[0145] The first control module 410 is configured to, during the process of charging and discharging between the AC charging pile and the vehicle, if at least one of the AC charging pile and the vehicle is offline, stop the AC charging pile from sending a specified signal to the vehicle at intervals of a preset time and receive real-time information sent by the vehicle.

[0146] In some embodiments, the first control module 410 is configured to stop sending the first PWM signal to the vehicle at intervals of a preset duration, and instruct the vehicle to perform on-off control on a target switch to receive real-time information from the vehicle.

[0147] In some embodiments, the communication device 400 of the AC charging pile further includes: The charging module is configured to send real-time information of the vehicle to a server when the vehicle is offline and the AC charging pile is online; receive charging and discharging indication information transmitted by the server, and control the charging and discharging of the vehicle based on the charging and discharging indication information.

[0148] In some embodiments, the charging module is further configured to receive charging and discharging indication information sent by the vehicle when the AC charging pile is in an offline state and the vehicle is in an online state, wherein the charging and discharging indication information is sent to the vehicle by the server after receiving real-time information sent by the vehicle; and control the charging and discharging of the vehicle based on the charging and discharging indication information.

[0149] In some embodiments, the charging module is further configured to receive real-time information sent by the vehicle when both the AC charging pile and the vehicle are in an offline state; obtain charging and discharging indication information based on the real-time information, and control charging and discharging of the vehicle based on the charging and discharging indication information.

[0150] In some embodiments, the charging module is further configured to reduce the charging power of the AC charging pile when the AC charging pile is in an offline state, and charge the vehicle according to a first specified power.

[0151] In some embodiments, the charging module is further configured to reduce the discharge power of the vehicle and discharge the AC charging pile according to a second specified power when the AC charging pile is in an offline state.

[0152] In some embodiments, the charging module is further configured to respond to the next real-time information sent by the vehicle and terminate charging and discharging when the charging and discharging instruction information is stop instruction information.

[0153] In some embodiments, the charging module is further configured to receive the stop indication information sent by the server and stop sending the first PWM signal to the vehicle when the vehicle is offline and the AC charging pile is online; receive the real-time information sent by the vehicle next time and respond to the real-time information.

[0154] In some embodiments, the charging module is further configured to receive the real-time information and the stop indication information sent by the vehicle next time when the AC charging pile is in an offline state and the vehicle is in an online state, and respond to the real-time information.

[0155] In some embodiments, the charging module is further configured to stop sending the first PWM signal to the vehicle when the AC charging pile and the vehicle are both in an offline state, if it is determined that charging and discharging are terminated; receive the real-time information sent by the vehicle next time, and respond to the real-time information.

[0156] In some embodiments, the communication device 400 of the AC charging pile further includes: The response module is configured to send response information to the vehicle based on the real-time information, wherein the response information includes charging and discharging charging information.

[0157] In some embodiments, the charging module is further configured to send a first PWM signal to the vehicle, wherein the first PWM signal is used to instruct the vehicle to close a target switch; charging and discharging is started when it is detected that the voltage value on the control guide signal line changes from a first voltage value to a second voltage value, and the first voltage value is greater than the second voltage value.

[0158] In some embodiments, the communication device 400 of the AC charging pile further includes: The connection module is configured to send a second PWM signal to the vehicle in response to the connection operation of the vehicle; if the voltage value on the control guide signal line is detected to change from a first voltage value to a second voltage value within a preset time period from the sending of the second PWM signal, it is determined that communication between the vehicle and the AC charging pile is possible, and the first voltage value is greater than the second voltage value.

[0159] The disclosed embodiments can achieve real-time two-way interaction between the AC charging pile and the vehicle in four situations: the vehicle and the AC charging pile are both online, the vehicle is offline, the AC charging pile is offline, and both the vehicle and the AC charging pile are offline. This not only avoids the problem of the server being unable to control the charging process due to the vehicle or the AC charging pile being offline, but also improves the stability and safety of the charging and discharging process.

[0160] Figure 13 is a block diagram of a vehicle communication device according to an exemplary embodiment. Figure 13 The illustrated vehicle communication device 500 may include a second control module 510 .

[0161] The second control module 510 is configured to, during the process of charging and discharging between the AC charging pile and the vehicle, if at least one of the AC charging pile and the vehicle is offline, stop the vehicle from receiving a designated signal from the AC charging pile at intervals of a preset time and send real-time information to the AC charging pile.

[0162] In another exemplary embodiment, an AC charging pile is further provided, comprising: a memory having a computer program stored thereon; A processor is used to execute the computer program in the memory to implement the communication method of the AC charging pile.

[0163] Figure 14 FIG. 8 is a block diagram of a vehicle 800 according to an exemplary embodiment. Figure 14 As shown, the vehicle 800 may include: a processor 801 , a memory 802 . The vehicle 800 may also include one or more of a multimedia component 803 , an input / output (I / O) interface 804 , and a communication component 805 .

[0164] The processor 801 is used to control the overall operation of the vehicle 800 to complete all or part of the steps in the vehicle communication method described above. The memory 802 is used to store various types of data to support the operation of the vehicle 800. This data may include, for example, instructions for any application or method operating on the vehicle 800, as well as application-related data such as contact information, sent and received messages, images, audio, video, etc. The memory 802 may be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The multimedia component 803 may include a screen and an audio component. The screen may be, for example, a touch screen, and the audio component is used to output and / or input audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signals may be further stored in the memory 802 or transmitted via the communication component 805. The audio component also includes at least one speaker for outputting audio signals. The I / O interface 804 provides an interface between the processor 801 and other interface modules, which may be a keyboard, a mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 805 is used for wired or wireless communication between the vehicle 800 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or a combination of one or more thereof, is not limited here. Therefore, the corresponding communication component 805 may include: a Wi-Fi module, a Bluetooth module, an NFC module, etc.

[0165] In an exemplary embodiment, the vehicle 800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to execute the above-mentioned vehicle communication method.

[0166] In another exemplary embodiment, a computer-readable storage medium including program instructions is also provided. When executed by a processor, the program instructions implement the steps of the vehicle communication method described above. For example, the computer-readable storage medium may be the aforementioned memory 802 including the program instructions. The program instructions may be executed by the processor 801 of the vehicle 800 to implement the vehicle communication method described above.

[0167] In another exemplary embodiment, a computer program product is provided. The computer program product includes a computer program executable by a programmable device, and has a code portion for executing the above-mentioned vehicle communication method when executed by the programmable device.

[0168] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0169] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0170] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

[0171] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0172] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0173] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A communication method for an AC charging pile, characterized in that: The method comprises: During the charging and discharging process between the AC charging pile and the vehicle, if at least one of the AC charging pile and the vehicle is offline, the AC charging pile stops sending a specified signal to the vehicle at preset intervals and receives real-time information sent by the vehicle.

2. The method according to claim 1, characterized in that The step of stopping sending a designated signal to the vehicle at each preset time interval and receiving real-time information sent by the vehicle includes: The first PWM signal is stopped from being sent to the vehicle at every preset time interval, and the vehicle is instructed to perform on-off control on a target switch to receive real-time information of the vehicle.

3. The method according to claim 1, characterized in that After receiving the real-time information sent by the vehicle, the method further includes: When the vehicle is in an offline state and the charging pile is in an online state, sending real-time information of the vehicle to a server; Receive the charge and discharge instruction information transmitted by the server, and control the charge and discharge of the vehicle based on the charge and discharge instruction information.

4. The method according to claim 1, wherein After receiving the real-time information sent by the vehicle, the method further includes: When the AC charging pile is in an offline state and the vehicle is in an online state, receiving charging and discharging instruction information sent by the vehicle, the charging and discharging instruction information is sent to the vehicle by the server after receiving real-time information sent by the vehicle; The charging and discharging of the vehicle is controlled based on the charging and discharging instruction information.

5. The method according to claim 1, wherein After receiving the real-time information sent by the vehicle, the method further includes: When the AC charging pile and the vehicle are both in an offline state, receiving real-time information sent by the vehicle; Charging and discharging instruction information is acquired based on the real-time information, and charging and discharging of the vehicle is controlled based on the charging and discharging instruction information.

6. The method according to claim 4 or 5, characterized in that The method further comprises: When the AC charging pile is in an offline state, the charging power of the AC charging pile is reduced, and the vehicle is charged according to a first designated power.

7. The method according to claim 4 or 5, characterized in that The method further comprises: When the AC charging pile is in an offline state, the discharge power of the vehicle is reduced, and the AC charging pile is discharged according to a second specified power.

8. The method according to any one of claims 3 to 5, characterized in that: The controlling the charging and discharging of the vehicle based on the charging and discharging instruction information includes: When the charge and discharge instruction information is stop instruction information, a response is made to the next real-time information sent by the vehicle, and charge and discharge are terminated.

9. The method according to claim 8, characterized in that When the charge-discharge instruction information is stop instruction information, responding to the real-time information sent next time by the vehicle includes: When the vehicle is in an offline state and the AC charging pile is in an online state, receiving the stop instruction information sent by the server and stopping sending the first PWM signal to the vehicle; Receive the real-time information sent by the vehicle next time and respond to the real-time information.

10. The method according to claim 8, characterized in that When the charge-discharge instruction information is stop instruction information, responding to the real-time information sent next time by the vehicle includes: When the AC charging pile is in an offline state and the vehicle is in an online state, the real-time information and the stop instruction information sent by the vehicle next time are received, and a response is made to the real-time information.

11. The method according to claim 8, characterized in that When the charge-discharge instruction information is stop instruction information, responding to the real-time information sent next time by the vehicle includes: When the AC charging pile and the vehicle are both in an offline state, if it is determined that charging and discharging are to be terminated, stopping sending the first PWM signal to the vehicle; Receive the real-time information sent by the vehicle next time and respond to the real-time information.

12. The method according to claim 1, characterized in that After receiving the real-time information sent by the vehicle, the method further includes: A response message is sent to the vehicle based on the real-time information, wherein the response message includes charging and discharging fee information.

13. The method according to claim 12, characterized in that After sending the response information to the vehicle based on the real-time information, the method includes: sending a first PWM signal to the vehicle, wherein the first PWM signal is used to instruct the vehicle to close a target switch; When it is detected that the voltage value on the control pilot signal line changes from a first voltage value to a second voltage value, charging and discharging are started, and the first voltage value is greater than the second voltage value.

14. The method according to any one of claims 1 to 5, characterized in that: The method further comprises: sending a second PWM signal to the vehicle in response to a connection operation of the vehicle; If the voltage value on the control guide signal line is detected to change from the first voltage value to the second voltage value within a preset time period from sending the second PWM signal, it is determined that communication between the vehicle and the AC charging pile is possible, and the first voltage value is greater than the second voltage value.

15. A vehicle communication method, characterized in that: The method comprises: During the charging and discharging process between the AC charging pile and the vehicle, if at least one of the AC charging pile and the vehicle is offline, the vehicle stops receiving a designated signal from the AC charging pile at preset intervals and sends real-time information to the AC charging pile.

16. An AC charging pile, characterized in that: The AC charging pile includes: a memory having a computer program stored thereon; A processor, configured to execute the computer program in the memory to implement the steps of the method according to any one of claims 1 to 14.

17. A vehicle, characterized in that: The vehicle comprises: a memory having a computer program stored thereon; A processor, configured to execute the computer program in the memory to implement the steps of the method according to claim 15.

18. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 15 are implemented.

19. A computer program product, characterized in that The invention comprises a computer program, which, when executed by a processor, implements the steps of the method according to any one of claims 1 to 15.

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