A charging information display method, device and electric vehicle

Abstract

The application discloses a charging information display method, device and electric vehicle, and relates to the technical field of electric vehicles, and discloses a charging information display method, device and electric vehicle, which comprises the following steps: a battery management system responds to a charging signal of an electric vehicle, and sends basic charging information to a vehicle controller according to a preset frequency; the vehicle controller obtains target charging information according to the basic charging information, and sends the target charging information to a vehicle gateway; the vehicle gateway sends the target charging information to a head-up display device through a central control screen controller; and the head-up display device mirrors and projects the target charging information to a front windshield of the electric vehicle, so that a user can check the target charging information outside the electric vehicle. The application does not require the user to repeatedly unlock the vehicle and repeatedly enter and exit the vehicle to check the charging state of the electric vehicle, but the user can simply and clearly know the charging information of the electric vehicle by observing the windshield of the electric vehicle outside the vehicle, thereby greatly improving the use convenience of the user and improving the user experience.

Description

Technical Field

[0001] This invention relates to the field of electric vehicle technology, and more particularly to a charging information display method, device, and electric vehicle. Background Technology

[0002] An electric vehicle (EV) is a car powered by electrical energy stored in its battery. EVs are charged using charging stations to replenish the battery's energy. Charging time for EVs is relatively long, and users typically need to open the car door and enter to check the charging information on the in-car display.

[0003] However, this method requires users to repeatedly unlock and exit the vehicle to view the electric vehicle's charging information, which is inconvenient and results in a poor user experience. Therefore, how to display vehicle charging information more conveniently for users is a problem that urgently needs to be solved. Summary of the Invention

[0004] This application provides a charging information display method, device, and electric vehicle, which solves the technical problem in the prior art that requires users to repeatedly unlock the vehicle and repeatedly enter and exit the vehicle to view the charging information of the electric vehicle, resulting in low convenience. It enables users to view the vehicle charging information from outside the vehicle, thus improving the technical effect of convenience.

[0005] In a first aspect, this application provides a charging information display method, the method being applied to an electric vehicle, the electric vehicle including a battery management system, a vehicle controller, a vehicle gateway, a central control screen controller, and a head-up display device; the method includes:

[0006] The battery management system responds to the charging signal of the electric vehicle by sending basic charging information to the vehicle controller at a preset frequency;

[0007] The vehicle controller obtains the target charging information based on the basic charging information and sends the target charging information to the vehicle gateway;

[0008] The vehicle gateway sends the target charging information to the head-up display device through the central control screen controller;

[0009] The head-up display projectes the target charging information onto the windshield of the electric vehicle.

[0010] Furthermore, the electric vehicle also includes an on-board charger, and the method further includes the following steps during the process of sending basic charging information to the vehicle controller at a preset frequency:

[0011] The vehicle controller monitors whether the electric vehicle has finished charging based on the basic charging information.

[0012] If the electric vehicle finishes charging, the vehicle controller monitors whether the electric vehicle meets the preset conditions for entering sleep mode;

[0013] If the electric vehicle meets the preset conditions for entering sleep mode, the vehicle controller sends a sleep command to the on-board charger, the battery management system, and the vehicle gateway. The vehicle gateway sends the sleep command to the central control screen controller, and the central control screen controller sends the sleep command to the head-up display device to control the on-board charger, the battery management system, the vehicle gateway, the central control screen controller, and the head-up display device to enter sleep mode, thereby enabling the electric vehicle to enter sleep mode.

[0014] Furthermore, the electric vehicle also includes an external signal receiving module, and after the electric vehicle enters sleep mode, the method further includes:

[0015] The external signal receiving module responds to a wake-up signal generated by a third-party device and sends the wake-up signal to the vehicle gateway to wake up the vehicle gateway;

[0016] The vehicle gateway sends the wake-up signal to the vehicle controller and the central control screen controller respectively to wake up the vehicle controller and the central control screen controller; the vehicle controller sends the wake-up signal to the on-board charger and the battery management system to wake up the on-board charger and the battery management system.

[0017] After being woken up, the on-board charger obtains the first plug-in state corresponding to the AC charging gun and transmits the first plug-in state to the vehicle controller.

[0018] After being woken up, the battery management system obtains the second plug-in state corresponding to the DC charging gun and transmits the second plug-in state to the vehicle controller.

[0019] The vehicle controller obtains the insertion result based on the first insertion state and the second insertion state. When it is determined that the insertion result indicates that the electric vehicle is in the insertion state, the insertion result is sent to the central control screen controller through the vehicle gateway.

[0020] When the central control screen controller determines that the insertion result indicates that the electric vehicle is in the insertion state, it wakes up the head-up display device.

[0021] The battery management system sends the first charging information of the electric vehicle to the vehicle controller;

[0022] The vehicle controller obtains the second charging information based on the first charging information, and sends the second charging information to the head-up display device through the vehicle gateway and the central control screen controller;

[0023] The head-up display device projects the second charging information onto the windshield of the electric vehicle.

[0024] Furthermore, the external signal receiving module includes at least one of a Bluetooth module, a near-field communication module, and a door handle sensing module of the electric vehicle; the third-party device includes at least one of the electric vehicle key, a mobile terminal matched with the electric vehicle, and the door handle sensing module of the electric vehicle.

[0025] Furthermore, after the head-up display device projects the second charging information onto the windshield of the electric vehicle, the method further includes:

[0026] The external signal receiving module responds to the end feedback signal corresponding to the wake-up signal of the third-party device and sends the end feedback signal to the vehicle controller through the vehicle gateway.

[0027] In response to the end feedback signal, the vehicle controller determines whether it has received the wake-up signal received and forwarded by the vehicle gateway from the external signal receiving module within a preset time period;

[0028] If the vehicle controller does not receive the wake-up signal received and forwarded by the vehicle gateway from the external signal receiving module within the preset time period, the vehicle controller sends the sleep command to the on-board charger, the battery management system, and the vehicle gateway. The vehicle gateway then sends the sleep command to the central control screen controller and the external signal receiving module. The central control screen controller then sends the sleep command to the head-up display device to control the on-board charger, the battery management system, the vehicle gateway, the central control screen controller, and the head-up display device to go into sleep mode, thereby putting the electric vehicle into sleep mode.

[0029] Furthermore, the battery management system, in response to the charging signal of the electric vehicle, sends basic charging information to the vehicle controller at a preset frequency, including:

[0030] The battery management system responds to the charging signal of the electric vehicle. When the charging signal indicates that the electric vehicle is charging with an AC charging gun, the battery management system receives the basic charging information transmitted at the preset frequency from the on-board charger of the electric vehicle, and then transmits the basic charging information to the vehicle controller at the preset frequency; or...

[0031] In response to the charging signal of the electric vehicle, when the charging signal indicates that the electric vehicle is being charged using a DC charging gun, the battery management system generates the basic charging information at the preset frequency and sends the basic charging information to the vehicle controller at the preset frequency.

[0032] Furthermore, the method also includes:

[0033] In response to the vehicle's driving signal, the vehicle controller blocks the charging information sent by the battery management system, or the vehicle controller prohibits the battery management system from sending charging information to the vehicle controller.

[0034] Furthermore, the basic charging information includes at least one of the following: remaining battery power, remaining charging time, and charging status; the target charging information includes at least one of the following: remaining battery power, remaining charging time, charging status, and drivable range.

[0035] Secondly, this application provides a charging information display device, which is applied to an electric vehicle. The electric vehicle includes a battery management system, a vehicle controller, a vehicle gateway, a central control screen controller, and a head-up display device; the device includes:

[0036] The battery management system is used to respond to the charging signal of the electric vehicle and send basic charging information to the vehicle controller at a preset frequency.

[0037] The vehicle controller is used to obtain target charging information based on the basic charging information, and send the target charging information to the vehicle gateway;

[0038] The vehicle gateway is used to send the target charging information to the head-up display device through the central control screen controller;

[0039] The head-up display device is used to mirror and project the target charging information onto the windshield of the electric vehicle, allowing the user to view the target charging information from outside the electric vehicle.

[0040] Furthermore, the electric vehicle also includes an on-board charger, and the vehicle controller is used to monitor whether the electric vehicle has finished charging based on the basic charging information during the process of sending basic charging information to the vehicle controller at a preset frequency;

[0041] If the electric vehicle finishes charging, the vehicle controller is used to monitor whether the electric vehicle meets the preset conditions for entering the sleep mode;

[0042] If the electric vehicle meets the preset conditions for entering sleep mode, the vehicle controller sends a sleep command to the on-board charger, the battery management system, and the vehicle gateway. The vehicle gateway sends the sleep command to the central control screen controller, and the central control screen controller sends the sleep command to the head-up display device to control the on-board charger, the battery management system, the vehicle gateway, the central control screen controller, and the head-up display device to enter sleep mode, thereby enabling the electric vehicle to enter sleep mode.

[0043] Furthermore, the electric vehicle also includes an external signal receiving module. After the electric vehicle enters sleep mode, the external signal receiving module is used to respond to a wake-up signal generated by a third-party device and send the wake-up signal to the vehicle gateway to wake up the vehicle gateway.

[0044] The vehicle gateway is used to send the wake-up signal to the vehicle controller and the central control screen controller respectively, so as to wake up the vehicle controller and the central control screen controller; the vehicle controller is used to send the wake-up signal to the on-board charger and the battery management system, so as to wake up the on-board charger and the battery management system.

[0045] The on-board charger is used to obtain the first plug-in state corresponding to the AC charging gun after being woken up, and to transmit the first plug-in state to the vehicle controller.

[0046] The battery management system is used to obtain the second charging gun state corresponding to the DC charging gun after being woken up, and transmit the second charging gun state to the vehicle controller;

[0047] The vehicle controller is used to obtain the insertion result based on the first insertion state and the second insertion state. When it is determined that the insertion result indicates that the electric vehicle is in the insertion state, the insertion result is sent to the central control screen controller through the vehicle gateway.

[0048] The central control screen controller is used to wake up the head-up display device when it is determined that the insertion result indicates that the electric vehicle is in the insertion state;

[0049] The battery management system is used to send the first charging information of the electric vehicle to the vehicle controller;

[0050] The vehicle controller is used to obtain second charging information based on the first charging information, and send the second charging information to the head-up display device through the vehicle gateway and the central control screen controller;

[0051] The head-up display device is used to mirror and project the second charging information onto the windshield of the electric vehicle.

[0052] Furthermore, the battery management system, in response to the charging signal of the electric vehicle, sends basic charging information to the vehicle controller at a preset frequency, including:

[0053] The battery management system responds to the charging signal of the electric vehicle. When the charging signal indicates that the electric vehicle is charging with an AC charging gun, the battery management system receives the basic charging information transmitted at the preset frequency from the on-board charger of the electric vehicle, and then transmits the basic charging information to the vehicle controller at the preset frequency; or...

[0054] In response to the charging signal of the electric vehicle, when the charging signal indicates that the electric vehicle is being charged using a DC charging gun, the battery management system generates the basic charging information at the preset frequency and sends the basic charging information to the vehicle controller at the preset frequency.

[0055] Furthermore, the external signal receiving module includes at least one of a Bluetooth module, a near-field communication module, and a door handle sensing module of the electric vehicle; the third-party device includes at least one of the electric vehicle key, a mobile terminal matched with the electric vehicle, and the door handle sensing module of the electric vehicle.

[0056] Furthermore, after the head-up display device projects the second charging information onto the windshield of the electric vehicle, the external signal receiving module is used to respond to the end feedback signal corresponding to the wake-up signal of the third-party device and send the end feedback signal to the vehicle controller through the vehicle gateway.

[0057] The vehicle controller is used to respond to the end feedback signal and determine whether it receives the wake-up signal received and forwarded by the vehicle gateway from the external signal receiving module within a preset time period;

[0058] If the vehicle controller does not receive the wake-up signal received and forwarded by the vehicle gateway from the external signal receiving module within the preset time period, the vehicle controller sends the hibernation command to the on-board charger, the battery management system, and the vehicle gateway. The vehicle gateway sends the hibernation command to the central control screen controller and the external signal receiving module. The central control screen controller sends the hibernation command to the head-up display device to control the on-board charger, the battery management system, the vehicle gateway, the central control screen controller, and the head-up display device to hibernate, so that the electric vehicle enters hibernation mode.

[0059] Furthermore, the battery management system is configured to respond to a charging signal from the electric vehicle, wherein, if the charging signal indicates that the electric vehicle is being charged using an AC charging gun, the battery management system is configured to receive basic charging information transmitted at the preset frequency from the on-board charger of the electric vehicle, and the battery management system is configured to transmit the basic charging information to the vehicle controller at the preset frequency; or,

[0060] The battery management system is used to respond to the charging signal of the electric vehicle. When the charging signal indicates that the electric vehicle is being charged using a DC charging gun, the battery management system is used to generate the basic charging information according to the preset frequency and send the basic charging information to the vehicle controller according to the preset frequency.

[0061] Furthermore, in response to the vehicle's driving signal, the vehicle controller is used to block the charging information sent by the battery management system, or the vehicle controller is used to prevent the battery management system from sending charging information to the vehicle controller.

[0062] Furthermore, the basic charging information includes at least one of the following: remaining battery power, remaining charging time, and charging status; the target charging information includes at least one of the following: remaining battery power, remaining charging time, charging status, and drivable range.

[0063] Thirdly, this application provides an electric vehicle, comprising: a battery management system, a vehicle controller, a vehicle gateway, a central control screen controller, and a head-up display device connected in sequence, for implementing a charging information display method as provided in the first aspect.

[0064] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0065] This application embodiment, without adding extra hardware or changing the architecture of the electric vehicle itself, utilizes the electric vehicle's existing battery management system, vehicle controller, vehicle gateway, central control screen controller, and head-up display device to project target charging information onto the windshield during the electric vehicle's charging process. This eliminates the need for users to repeatedly unlock and enter / exit the vehicle to check the charging status. Instead, users can easily and clearly understand the electric vehicle's charging information by observing the windshield from outside the vehicle, greatly improving user convenience and enhancing the user experience. Attached Figure Description

[0066] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0067] Figure 1 A schematic diagram of the architecture of an electric vehicle provided in an embodiment of this application;

[0068] Figure 2 A flowchart illustrating a charging information display method provided in an embodiment of this application;

[0069] Figure 3 A schematic diagram of another electric vehicle architecture provided for an embodiment of this application;

[0070] Figure 4 This is a flowchart illustrating another charging information display method provided in an embodiment of this application. Detailed Implementation

[0071] This application provides a charging information display method, which solves the technical problem in the prior art that requires users to repeatedly unlock the vehicle and repeatedly enter and exit the vehicle in order to view the charging information of electric vehicles, resulting in low convenience.

[0072] The technical solution of this application embodiment is to solve the above-mentioned technical problems, and the general idea is as follows:

[0073] A charging information display method is applied to an electric vehicle, the electric vehicle including a battery management system, a vehicle controller, a vehicle gateway, a central control screen controller, and a head-up display device; the method includes: the battery management system responding to the charging signal of the electric vehicle by sending basic charging information to the vehicle controller at a preset frequency; the vehicle controller obtaining target charging information based on the basic charging information and sending the target charging information to the vehicle gateway; the vehicle gateway sending the target charging information to the head-up display device through the central control screen controller; and the head-up display device mirroring the target charging information onto the windshield of the electric vehicle, allowing a user to view the target charging information from outside the electric vehicle.

[0074] This application embodiment, without adding extra hardware or changing the architecture of the electric vehicle itself, utilizes the electric vehicle's existing battery management system, vehicle controller, vehicle gateway, central control screen controller, and head-up display device to project target charging information onto the windshield during the electric vehicle's charging process. This eliminates the need for users to repeatedly unlock and enter / exit the vehicle to check the charging status. Instead, users can easily and clearly understand the electric vehicle's charging information by observing the windshield from outside the vehicle, greatly improving user convenience and enhancing the user experience.

[0075] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0076] First, it should be clarified that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0077] This application provides a charging information display method applied to electric vehicles. The electric vehicle includes a battery management system, a vehicle controller, a vehicle gateway, a central control screen controller, and a head-up display device connected in sequence. An onboard charger is connected to both the battery management system and the vehicle controller. Figure 1The diagram shown is a connection schematic of some modules of an electric vehicle provided in an embodiment of this application. The battery management system is typically abbreviated as BMS (Battery Management System), the vehicle controller as PDCM (Power Distribution Control Module), the vehicle gateway as GW (Gateway), the central control screen controller as VIV (In-Vehicle Infotainment System), and the head-up display device as HUD (Head-Up Display). The on-board charger is typically abbreviated as OBC (On-board Charger).

[0078] Now based on Figure 1 The electric vehicle shown offers, for example Figure 2 The charging information display method shown includes steps S21-S24.

[0079] Step S21: In response to the charging signal of the electric vehicle, the battery management system sends basic charging information to the vehicle controller at a preset frequency.

[0080] Step S22: The vehicle controller obtains the target charging information based on the basic charging information and sends the target charging information to the vehicle gateway;

[0081] Step S23: The vehicle gateway sends the target charging information to the head-up display device through the central control screen controller;

[0082] In step S24, the head-up display device projects the target charging information onto the windshield of the electric vehicle, allowing the user to view the target charging information from outside the electric vehicle.

[0083] Regarding step S21, the battery management system responds to the charging signal of the electric vehicle and sends basic charging information to the vehicle controller at a preset frequency.

[0084] Electric vehicles can be charged using either an AC charging gun or a DC charging gun, but only one type of charging gun can be used per charge. If an AC charging gun is used, the onboard charger manages the charging process. If a DC charging gun is used, the battery management system manages the charging process.

[0085] In response to the charging signal of the electric vehicle, when the charging signal indicates that the electric vehicle is being charged using an AC charging gun, the battery management system receives the basic charging information sent at the preset frequency from the on-board charger of the electric vehicle, and sends the basic charging information to the vehicle controller at the preset frequency.

[0086] Alternatively, in response to a charging signal from the electric vehicle, if the charging signal indicates that the electric vehicle is being charged using a DC charging gun, the battery management system generates the basic charging information at the preset frequency and sends the basic charging information to the vehicle controller at the preset frequency.

[0087] Specifically, if an AC charging gun is used, the onboard charger generates a corresponding charging signal after the AC charging gun is plugged into the electric vehicle's charging port. The onboard charger sends this charging signal to the battery management system (BMS), which may contain basic charging information. The BMS receives this basic charging information and sends it to the vehicle controller. This basic charging information can be customized according to actual needs. For example, it may include the battery's remaining SOC (State of Charge), charging status, and remaining charging time. The charging status may include states such as charging in progress, charging completed, and charging fault.

[0088] It's important to note that the basic charging information of an electric vehicle changes as charging time varies. For example, the remaining battery charge will gradually increase, while the remaining charging time will gradually decrease. Because this basic charging information changes over time, the onboard charger can send this information to the battery management system (BMS) at a preset frequency. The BMS then forwards the received basic charging information to the vehicle controller. Specifically, the BMS also sends the received basic charging information to the vehicle controller at a preset frequency, ensuring that the electric vehicle's charging information is updated in real time and that users receive the most up-to-date charging information.

[0089] If a DC charging gun is used, the battery management system (BMS) generates a corresponding charging signal after the charging gun is plugged into the electric vehicle's charging port. This signal may contain basic charging information. The BMS then sends this basic charging information to the vehicle controller.

[0090] The basic charging information can be customized according to actual needs. For example, basic charging information may include at least one of the following: remaining battery capacity (SOC), charging status, and remaining charging time. The charging status may include states such as charging in progress and charging failure.

[0091] It is important to note that as the charging time of an electric vehicle changes, the basic charging information will also change. Therefore, the battery management system will send the basic charging information to the vehicle controller at a preset frequency to ensure that the charging information of the electric vehicle is updated in real time and that users can obtain relatively up-to-date charging information.

[0092] Regarding step S22, the vehicle controller obtains the target charging information based on the basic charging information and sends the target charging information to the vehicle gateway.

[0093] The vehicle controller obtains the target charging information based on the basic charging information. Specifically, the vehicle controller can calculate the current driving range of the electric vehicle based on the remaining battery power. In other words, the target charging information can include the basic charging information and may further include the current driving range. That is, the target charging information includes at least one of the following: remaining battery power, remaining charging time, charging status, and driving range.

[0094] After receiving the target charging information, the vehicle controller sends it to the vehicle gateway.

[0095] Regarding step S23, the vehicle gateway sends the target charging information to the head-up display device through the central control screen controller.

[0096] The vehicle gateway receives target charging information from the vehicle controller and forwards it to the central control screen controller. The central control screen controller receives target charging information from the vehicle gateway and forwards it to the head-up display device.

[0097] Regarding step S24, the head-up display device projects the target charging information onto the windshield of the electric vehicle, allowing the user to view the target charging information from outside the electric vehicle.

[0098] The head-up display projectes the target charging information onto the windshield of the electric vehicle in a mirror image, allowing the user to observe the windshield from outside the vehicle and obtain the current target charging information.

[0099] It should be noted that the image information projected onto the windshield by the head-up display device is usually for users to view inside the vehicle. However, the embodiments of this application need to satisfy the requirement that users can view the projected information of the head-up display device outside the vehicle. Therefore, the target charging information needs to be mirrored before being projected onto the windshield so that the projected information seen by the user outside the vehicle is normal, making it convenient for the user to obtain charging information directly outside the vehicle.

[0100] While an electric vehicle is charging, the head-up display can continuously project real-time updated target charging information onto the windshield so that the user can view it in real time.

[0101] Of course, in addition to this, while the electric vehicle is charging, it can also monitor whether the vehicle key or a mobile terminal paired with the electric vehicle enters the vehicle's preset range. If it enters the preset range, steps S21-S24 are then executed, thus saving energy while allowing users to conveniently view the electric vehicle's charging information.

[0102] In summary, this embodiment of the application, without adding extra hardware or changing the architecture of the electric vehicle itself, utilizes the existing battery management system, vehicle controller, vehicle gateway, central control screen controller, and head-up display device of the electric vehicle to project target charging information onto the windshield during the charging process. This eliminates the need for users to repeatedly unlock and enter / exit the vehicle to check the charging status. Instead, users can easily and clearly understand the charging information by observing the windshield from outside the vehicle, greatly improving user convenience and enhancing the user experience.

[0103] exist Figure 1 Based on the schematic diagram of the electric vehicle architecture shown and the aforementioned method, this application embodiment provides another charging information display method, specifically including steps S31-S33, which are executed during the process of sending basic charging information to the vehicle controller at a preset frequency.

[0104] Step S31: The vehicle controller monitors whether the electric vehicle has finished charging based on the basic charging information.

[0105] Step S32: If the electric vehicle finishes charging, the vehicle controller monitors whether the electric vehicle meets the preset conditions for entering sleep mode.

[0106] Step S33: If the electric vehicle meets the preset conditions for entering the sleep mode, the vehicle controller sends a sleep command to the on-board charger, the battery management system, and the vehicle gateway. The vehicle gateway sends the sleep command to the central control screen controller, and the central control screen controller sends the sleep command to the head-up display device to control the on-board charger, the battery management system, the vehicle gateway, the central control screen controller, and the head-up display device to go into sleep mode, so that the electric vehicle enters the sleep mode.

[0107] Regarding step S31, the basic charging information includes at least one of the following: remaining battery capacity, remaining charging time, and charging status. The vehicle controller can determine whether the electric vehicle has finished charging based on this basic charging information. If the basic charging information indicates that charging has not finished, step S31 continues until some basic charging information indicates that charging has finished, at which point step S32 continues.

[0108] Regarding step S32, if the electric vehicle finishes charging, the vehicle controller monitors whether the electric vehicle meets the preset conditions for entering the sleep mode. These preset conditions can be found in related technologies, and this application embodiment does not impose any limitations on them. If the preset conditions for entering the sleep mode are not met, step S31 continues until the vehicle starts, and no further steps are required. Alternatively, if the preset conditions for entering the sleep mode are not met, step S31 continues until the electric vehicle meets the preset conditions for entering the sleep mode, and then step S33 continues.

[0109] Regarding step S33, if the electric vehicle meets the preset conditions for entering the sleep mode, the vehicle controller sends a sleep command to the connected relevant modules, so that the battery management system, vehicle controller, vehicle gateway, central control screen controller and head-up display device all enter the sleep mode, that is, the electric vehicle enters the sleep mode.

[0110] When the head-up display (HUD) goes into sleep mode, it means that charging information will no longer be displayed on the windshield. Since users can no longer see the charging information from outside the vehicle, they can know that the electric vehicle has finished charging without having to unlock the vehicle and enter it to check the charging status. Instead, users can easily and clearly know that the electric vehicle has finished charging simply by observing the windshield from outside the vehicle, greatly improving user convenience and enhancing the user experience.

[0111] After the electric vehicle enters sleep mode, this application embodiment also provides another charging information display method, applied to... Figure 3 The diagram shows the architecture of an electric vehicle. Figure 3 Is Figure 1Based on the architecture of the electric vehicle shown, it specifically includes: a battery management system, a vehicle controller, a vehicle gateway, a central control screen controller, a head-up display device, and an external signal receiving module.

[0112] The external signal receiving module includes at least one of a Bluetooth module, a near-field communication module, and a door handle sensing module of the electric vehicle. Figure 3 The third-party device in the system is matched with the external signal receiving module, specifically including at least one of the following: the key of the electric vehicle, a mobile terminal matched with the electric vehicle, and the door handle sensing module of the electric vehicle.

[0113] For example, when the external signal receiving module is a Bluetooth module, the third-party device can be the key of the electric vehicle, which has a key-side Bluetooth module that matches the vehicle's Bluetooth module. When the external signal receiving module is a Bluetooth module, the third-party device can also be a mobile terminal that matches the electric vehicle, which has a mobile-side Bluetooth module that matches the vehicle's Bluetooth module.

[0114] When the external signal receiving module is a Near Field Communication (NFC) module, the third-party device can be the key of the electric vehicle, which has a key-side NFC module that matches the vehicle-side NFC module. Alternatively, when the external signal receiving module is an NFC module, the third-party device can also be a mobile terminal that matches the electric vehicle, which has a mobile-side NFC module that matches the vehicle-side NFC module.

[0115] When the external signal receiving module is the door handle sensor module of an electric vehicle, the third-party device and the external signal receiving module refer to the same device; that is, the third-party device also refers to the door handle sensor module itself. When a user touches or senses the door handle sensor module, the door handle sensor module generates a corresponding trigger signal.

[0116] After the electric vehicle enters sleep mode, another charging information display method provided in this application embodiment is as follows: Figure 4 As shown, it specifically includes steps S41-S49.

[0117] Step S41: The external signal receiving module responds to the wake-up signal generated by the third-party device and sends the wake-up signal to the vehicle gateway to wake up the vehicle gateway;

[0118] In step S42, the vehicle gateway sends the wake-up signal to the vehicle controller and the central control screen controller respectively to wake up the vehicle controller and the central control screen controller; the vehicle controller sends the wake-up signal to the on-board charger and the battery management system to wake up the on-board charger and the battery management system.

[0119] Step S43: After being woken up, the on-board charger obtains the first plug-in state corresponding to the AC charging gun and transmits the first plug-in state to the vehicle controller.

[0120] Step S44: After being woken up, the battery management system obtains the second plug-in state corresponding to the DC charging gun and transmits the second plug-in state to the vehicle controller.

[0121] Step S45: The vehicle controller obtains the insertion result based on the first insertion state and the second insertion state, and when it is determined that the insertion result indicates that the electric vehicle is in the insertion state, it sends the insertion result to the central control screen controller through the vehicle gateway.

[0122] Step S46: When the central control screen controller determines that the insertion result indicates that the electric vehicle is in the insertion state, it wakes up the head-up display device;

[0123] Step S47: The battery management system sends the first charging information of the electric vehicle to the vehicle controller;

[0124] Step S48: The vehicle controller obtains the second charging information based on the first charging information, and sends the second charging information to the head-up display device through the vehicle gateway and the central control screen controller;

[0125] In step S49, the head-up display device projects the second charging information onto the windshield of the electric vehicle, allowing the user to view the second charging information from outside the electric vehicle.

[0126] Regarding step S41, the third-party device is typically carried by the user. For example, when the third-party device is the key to the electric vehicle or a mobile terminal paired with the electric vehicle, when the user approaches the electric vehicle with the third-party device, the external signal receiving module will receive a wake-up signal sent by the third-party device, such as a Bluetooth signal or an NFC signal. The external signal receiving module will then send the wake-up signal to the vehicle gateway to wake up the vehicle gateway.

[0127] Alternatively, third-party devices can also be triggered by the user. For example, when the third-party device is a door handle sensor module, the user touches or senses it, and the third-party device generates a wake-up signal. The external signal receiving module then sends the wake-up signal to the vehicle gateway to wake up the vehicle gateway.

[0128] Regarding step S42, after the vehicle gateway is woken up, it wakes up other relevant modules of the electric vehicle, thereby waking up the vehicle controller, the central control screen controller, the on-board charger, and the battery management system.

[0129] Regarding step S43, the on-board charger manages information related to the AC charging gun. After being woken up, the on-board charger can obtain the first plug-in status related to the AC charging gun and transmit it to the vehicle controller. The first plug-in status can be either plugged in or not plugged in.

[0130] Regarding step S44, the battery management system manages relevant information about the DC charging gun. After waking up, the battery management system can obtain the second charging gun status related to the DC charging gun and transmit the second charging gun status to the vehicle controller. The second charging gun status can be either "charged" or "not charged".

[0131] Regarding step S45, the vehicle controller obtains the insertion result based on the first insertion state and the second insertion state. If at least one of the first insertion state and the second insertion state is "inserted", the insertion result is "inserted"; if both of the first insertion state and the second insertion state are "not inserted", the insertion result is "not inserted".

[0132] The vehicle controller determines whether the connector is plugged in or not. If it is not plugged in, no further steps are required; instead, it waits to enter sleep mode or awaits the user's next action. If it is plugged in, the connector result is sent to the central control screen controller via the vehicle gateway, and step S46 is executed.

[0133] Regarding step S46, when the central control screen controller determines that the insertion result indicates that the electric vehicle is in the inserted state, it wakes up the head-up display device.

[0134] The principles of steps S47-S49 are similar to those of steps S21-S24, except that steps S21-S24 are triggered by a charging signal, while steps S47-S49 are triggered by the wake-up of an electric vehicle component. The first charging information in steps S47-S49 is similar to the basic charging information in steps S21-S24, and the second charging information in steps S47-S49 is similar to the target charging information in steps S21-S24. The difference lies in that the first and second charging information represent the charging information after charging is completed, while the basic and target charging information represent the charging information during the charging process.

[0135] Therefore, after the electric vehicle finishes charging and enters sleep mode, this embodiment of the application monitors the user's movements or intentions through an external information receiving module. When the user approaches, the vehicle can be woken up, and then the head-up display device can be controlled to display the current charging information. The user does not need to unlock the vehicle and enter the vehicle to view the electric vehicle's charging information. Instead, the user can easily and clearly know the electric vehicle's charging information by observing the windshield of the electric vehicle from outside the vehicle, which greatly improves the user's convenience and enhances the user experience.

[0136] After the head-up display device projects the second charging information onto the windshield of the electric vehicle, the method further includes steps S61-S63.

[0137] Step S61: In response to the end feedback signal corresponding to the wake-up signal of the third-party device, the external signal receiving module sends the end feedback signal to the vehicle controller through the vehicle gateway.

[0138] In step S62, the vehicle controller responds to the end feedback signal and determines whether it has received the wake-up signal received and forwarded by the vehicle gateway from the external signal receiving module within a preset time period.

[0139] Step S63: If the vehicle controller does not receive the wake-up signal received and forwarded by the vehicle gateway from the external signal receiving module within the preset time period, the vehicle controller sends the sleep command to the on-board charger, the battery management system, and the vehicle gateway. The vehicle gateway sends the sleep command to the central control screen controller and the external signal receiving module. The central control screen controller sends the sleep command to the head-up display device to control the on-board charger, the battery management system, the vehicle gateway, the central control screen controller, and the head-up display device to go into sleep mode, thereby putting the electric vehicle into sleep mode.

[0140] Regarding step S61, when the wake-up signal of the third-party device disappears, it means that the user has moved away from the vehicle with the third-party device. In this embodiment, an external signal receiving module monitors whether the wake-up signal of the third-party device has disappeared. If the wake-up signal disappears for a certain duration (e.g., 3 minutes), an end feedback signal is generated and sent to the vehicle controller via the vehicle gateway. If the wake-up signal does not disappear, monitoring continues until the user's driving operation is received, or until an end feedback signal is generated.

[0141] Regarding step S62, in response to the end feedback signal, the vehicle controller determines whether it has received a wake-up signal from the vehicle gateway, which was received and forwarded by the external signal receiving module, within a preset time period. If a wake-up signal is received, the system returns to step S61; otherwise, it continues with step S62.

[0142] Regarding step S63, if no wake-up signal is received within a preset time period, the vehicle controller can send a sleep command to the relevant modules, causing the electric vehicle to enter sleep mode. This reduces unnecessary energy consumption and lowers the risk of low-voltage battery depletion when the user does not need to check the charging status after the electric vehicle has finished charging.

[0143] Furthermore, when a user operates the electric vehicle or needs to use the vehicle, a corresponding driving signal is generated by the user. In response to the electric vehicle's driving signal, the vehicle controller blocks the charging information sent by the battery management system, or the vehicle controller prohibits the battery management system from sending charging information to the vehicle controller. In other words, during vehicle use, from the perspective of the vehicle controller or battery management system, the sending of charging information to the head-up display (HUD) is avoided, ensuring that the HUD does not display charging information during non-charging periods, preventing display information conflicts on the HUD, and thus ensuring the user's driving safety.

[0144] In addition, in step S63, the head-up display device can also be controlled to go into sleep mode via a timer. For example, the vehicle controller sends a sleep signal to the head-up display device through the central control screen controller. After receiving the sleep signal, the head-up display device waits for a certain period of time (e.g., 3 minutes) before terminating the projection of charging information and entering sleep mode.

[0145] Here is a specific scenario to further illustrate the above solution:

[0146] When an electric vehicle is charging, the BMS sends the current remaining battery charge (SOC), remaining charging time, and charging status to the PDCM. The PDCM calculates the current driving range based on the remaining battery charge (SOC) and then forwards the four pieces of information—SOC, remaining charging time, charging status, and driving range—to the VIV in real time via the GW. The VIV transmits the information to the HUD via video, and the HUD projects the charging information onto a designated area of ​​the windshield using a mirror projection method. The charging information is always displayed in the designated area of ​​the windshield, so the user can clearly see the charging information from outside the vehicle.

[0147] When an electric vehicle finishes charging in DC or AC charging mode and enters sleep mode, if a user approaches the vehicle with the vehicle key, the key activates the vehicle's Bluetooth module via Bluetooth communication. The Bluetooth module then wakes up the vehicle gateway (GW), which in turn wakes up the vehicle controller (PDCM) and the central control screen controller (VIV). The vehicle controller then wakes up the on-board charger (OBC) and the battery management system (BMS). Upon waking, the BMS or OBC checks the charging port status and reports it to the PDCM. The PDCM then transmits the charging port signal to the VIV via the GW. Upon detecting the charging port signal, the VIV immediately activates the head-up display (HUD).

[0148] After all relevant modules in the electric vehicle are activated, the BMS sends the current remaining battery charge (SOC) and charging status to the PDCM. The PDCM calculates the remaining driving range based on the SOC and then forwards the three pieces of information—SOC, charging status, and remaining driving range—to the VIV via the GW. The VIV transmits this information to the HUD via video, which projects it onto a designated area of ​​the windshield using mirroring. The user can then clearly see the charging information from outside the vehicle. Three minutes after the user leaves the vehicle, the electric vehicle automatically enters sleep mode, and the charging information is removed from the windshield display. This prevents the vehicle's low-voltage battery from being depleted.

[0149] When the PDCM determines that it is a driving condition, it actively blocks the uploading of charging information. If the VIV does not receive charging information, it will not transmit it to the HUD. At this time, the HUD will only project driving-related information onto the windshield to provide driving assistance to the driver.

[0150] Many vehicles on the market are equipped with head-up displays (HUDs). However, these HUDs are typically only useful while driving and are useless outside of driving conditions. This application's embodiment fully utilizes the HUD function and related hardware to expand the charging information display functionality. This does not increase the overall vehicle hardware cost or change the vehicle's electrical architecture, and it also allows for the display of more charging information outside the vehicle, providing users with a convenient way to access charging information and greatly improving the user experience.

[0151] This application embodiment designs a charging information display solution based on the existing hardware of the vehicle. This solution does not increase the hardware cost of the vehicle, nor does it change the electrical architecture of the vehicle. It can still display charging information outside the vehicle. At the same time, it can avoid customers frequently entering and exiting the vehicle and the vehicle instrument panel being repeatedly woken up, providing users with convenient access to charging information and greatly improving the user experience.

[0152] Based on the same inventive concept, this application provides a charging information display device, which is applied to an electric vehicle. The electric vehicle includes a battery management system, a vehicle controller, a vehicle gateway, a central control screen controller, and a head-up display device connected in sequence. The device includes:

[0153] The battery management system is used to respond to the charging signal of the electric vehicle and send basic charging information to the vehicle controller at a preset frequency.

[0154] The vehicle controller is used to obtain target charging information based on the basic charging information, and send the target charging information to the vehicle gateway;

[0155] The vehicle gateway is used to send the target charging information to the head-up display device through the central control screen controller;

[0156] The head-up display device is used to mirror and project the target charging information onto the windshield of the electric vehicle, allowing the user to view the target charging information from outside the electric vehicle.

[0157] Furthermore, the electric vehicle also includes an on-board charger, and the vehicle controller is used to monitor whether the electric vehicle has finished charging based on the basic charging information during the process of sending basic charging information to the vehicle controller at a preset frequency;

[0158] If the electric vehicle finishes charging, the vehicle controller monitors whether the electric vehicle meets the preset conditions for entering sleep mode;

[0159] If the electric vehicle meets the preset conditions for entering sleep mode, the vehicle controller sends a sleep command to the on-board charger, the battery management system, and the vehicle gateway. The vehicle gateway sends the sleep command to the central control screen controller, and the central control screen controller sends the sleep command to the head-up display device to control the on-board charger, the battery management system, the vehicle gateway, the central control screen controller, and the head-up display device to enter sleep mode, thereby enabling the electric vehicle to enter sleep mode.

[0160] Furthermore, the electric vehicle also includes an external signal receiving module. After the electric vehicle enters sleep mode, the external signal receiving module is used to respond to a wake-up signal generated by a third-party device and send the wake-up signal to the vehicle gateway to wake up the vehicle gateway.

[0161] The vehicle gateway is used to send the wake-up signal to the vehicle controller and the central control screen controller respectively, so as to wake up the vehicle controller and the central control screen controller; the vehicle controller is used to send the wake-up signal to the on-board charger and the battery management system, so as to wake up the on-board charger and the battery management system.

[0162] The on-board charger is used to obtain the first plug-in state corresponding to the AC charging gun after being woken up, and to transmit the first plug-in state to the vehicle controller.

[0163] The battery management system is used to obtain the second charging gun state corresponding to the DC charging gun after being woken up, and transmit the second charging gun state to the vehicle controller;

[0164] The vehicle controller is used to obtain the insertion result based on the first insertion state and the second insertion state. When it is determined that the insertion result indicates that the electric vehicle is in the insertion state, the insertion result is sent to the central control screen controller through the vehicle gateway.

[0165] The central control screen controller is used to wake up the head-up display device when it is determined that the insertion result indicates that the electric vehicle is in the insertion state;

[0166] The battery management system is used to send the first charging information of the electric vehicle to the vehicle controller;

[0167] The vehicle controller is used to obtain second charging information based on the first charging information, and send the second charging information to the head-up display device through the vehicle gateway and the central control screen controller;

[0168] The head-up display device is used to mirror and project the second charging information onto the windshield of the electric vehicle, allowing the user to view the second charging information from outside the electric vehicle.

[0169] Furthermore, the external signal receiving module includes at least one of a Bluetooth module, a near-field communication module, and a door handle sensing module of the electric vehicle; the third-party device includes at least one of the electric vehicle key, a mobile terminal matched with the electric vehicle, and the door handle sensing module of the electric vehicle.

[0170] Furthermore, after the head-up display device projects the second charging information onto the windshield of the electric vehicle, the external signal receiving module is used to respond to the end feedback signal corresponding to the wake-up signal of the third-party device and send the end feedback signal to the vehicle controller through the vehicle gateway.

[0171] The vehicle controller is used to respond to the end feedback signal and determine whether it receives the wake-up signal received and forwarded by the vehicle gateway from the external signal receiving module within a preset time period;

[0172] If the vehicle controller does not receive the wake-up signal received and forwarded by the vehicle gateway from the external signal receiving module within the preset time period, the vehicle controller sends the hibernation command to the on-board charger, the battery management system, and the vehicle gateway. The vehicle gateway sends the hibernation command to the central control screen controller and the external signal receiving module. The central control screen controller sends the hibernation command to the head-up display device to control the on-board charger, the battery management system, the vehicle gateway, the central control screen controller, and the head-up display device to hibernate, so that the electric vehicle enters hibernation mode.

[0173] Furthermore, the battery management system is configured to respond to a charging signal from the electric vehicle, wherein, if the charging signal indicates that the electric vehicle is being charged using an AC charging gun, the battery management system is configured to receive basic charging information transmitted at the preset frequency from the on-board charger of the electric vehicle, and the battery management system is configured to transmit the basic charging information to the vehicle controller at the preset frequency; or,

[0174] The battery management system is used to respond to the charging signal of the electric vehicle. When the charging signal indicates that the electric vehicle is being charged using a DC charging gun, the battery management system is used to generate the basic charging information according to the preset frequency and send the basic charging information to the vehicle controller according to the preset frequency.

[0175] Furthermore, in response to the vehicle's driving signal, the vehicle controller is used to block the charging information sent by the battery management system, or the vehicle controller is used to prevent the battery management system from sending charging information to the vehicle controller.

[0176] Furthermore, the basic charging information includes at least one of the following: remaining battery power, remaining charging time, and charging status; the target charging information includes at least one of the following: remaining battery power, remaining charging time, charging status, and drivable range.

[0177] Based on the same inventive concept, this application provides an electric vehicle, including: a battery management system, a vehicle controller, a vehicle gateway, a central control screen controller, and a head-up display device connected in sequence, for implementing a charging information display method as described above.

[0178] Since the electronic device described in this embodiment is an electronic device used to implement the information processing method in the embodiments of this application, those skilled in the art can understand the specific implementation methods and various variations of the electronic device in this embodiment based on the information processing method described in the embodiments of this application. Therefore, how the electronic device implements the method in the embodiments of this application will not be described in detail here. Any electronic device used by those skilled in the art to implement the information processing method in the embodiments of this application falls within the scope of protection of this application.

[0179] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0180] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0181] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0182] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1The steps of the function specified in one or more boxes.

[0183] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0184] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A charge information display method characterized by comprising: The application is applied to an electric vehicle, which comprises a battery management system, a vehicle controller, a vehicle gateway, a central control screen controller and a head-up display device; the method comprises: The battery management system sends basic charging information to the vehicle controller according to a preset frequency in response to a charging signal of the electric vehicle; the vehicle controller obtains target charging information according to the basic charging information and sends the target charging information to the vehicle gateway; the vehicle gateway sends the target charging information to the head-up display device through the central control screen controller; and the head-up display device mirrors and projects the target charging information to the front windshield of the electric vehicle. The electric vehicle further comprises a vehicle charger; during the process of sending the basic charging information to the vehicle controller according to the preset frequency, the vehicle controller monitors whether the electric vehicle ends charging according to the basic charging information; if the electric vehicle ends charging, the vehicle controller monitors whether the electric vehicle meets preset conditions for entering a hibernation mode; if the electric vehicle meets the preset conditions for entering the hibernation mode, the vehicle controller sends a hibernation instruction to the vehicle charger, the battery management system and the vehicle gateway; the vehicle gateway sends the hibernation instruction to the central control screen controller; and the central control screen controller sends the hibernation instruction to the head-up display device, so as to control the vehicle charger, the battery management system, the vehicle gateway, the central control screen controller and the head-up display device to hibernate, and make the electric vehicle enter the hibernation mode. The electric vehicle further comprises an external signal receiving module, after the electric vehicle enters the hibernation mode, the external signal receiving module responds to the wake-up signal generated by the third-party device, and sends the wake-up signal to the vehicle gateway to wake up the vehicle gateway; the vehicle gateway sends the wake-up signal to the vehicle controller and the central control screen controller respectively to wake up the vehicle controller and the central control screen controller; the vehicle controller sends the wake-up signal to the on-board charger and the battery management system to wake up the on-board charger and the battery management system; the on-board charger obtains the first plug-in state corresponding to the alternating current charging gun after being woken up, and transmits the first plug-in state to the vehicle controller; the battery management system obtains the second plug-in state corresponding to the direct current charging gun after being woken up, and transmits the second plug-in state to the vehicle controller; the vehicle controller obtains the plug-in result according to the first plug-in state and the second plug-in state, and sends the plug-in result to the central control screen controller through the vehicle gateway in the case that the plug-in result represents that the electric vehicle is in the plug-in state; the central control screen controller wakes up the head-up display device in the case that the plug-in result represents that the electric vehicle is in the plug-in state; the battery management system sends the first charging information of the electric vehicle to the vehicle controller; the vehicle controller obtains the second charging information according to the first charging information, and sends the second charging information to the head-up display device through the vehicle gateway and the central control screen controller; the head-up display device mirrors and projects the second charging information to the front windshield of the electric vehicle.

2. The method of claim 1, wherein, The external signal receiving module comprises at least one of a Bluetooth module, a near field communication module, and a door handle sensing module of the electric vehicle; the third-party device comprises at least one of a key of the electric vehicle, a mobile terminal matched with the electric vehicle, and the door handle sensing module of the electric vehicle.

3. The method of claim 1, wherein, After the head-up display device mirrors and projects the second charging information to the front windshield of the electric vehicle, the method further comprises: The external signal receiving module sends the end feedback signal corresponding to the wake-up signal of the third-party device to the vehicle controller through the vehicle gateway; The vehicle controller judges whether the wake-up signal received and forwarded by the vehicle gateway from the external signal receiving module is received within a preset time period in response to the end feedback signal; In the case that the whole vehicle controller does not receive the wake-up signal received and forwarded by the vehicle gateway from the external signal receiving module within the preset time length, the whole vehicle controller sends the hibernation instruction to the vehicle charger, the battery management system and the vehicle gateway, the vehicle gateway sends the hibernation instruction to the central control screen controller and the external signal receiving module, and the central control screen controller sends the hibernation instruction to the head-up display device to control the vehicle charger, the battery management system, the vehicle gateway, the central control screen controller and the head-up display device to hibernate, so that the electric vehicle enters the hibernation mode.

4. The method of claim 1, wherein, The battery management system sends basic charging information to the whole vehicle controller at a preset frequency in response to a charging signal of the electric vehicle, and the basic charging information includes at least one of the following: battery remaining capacity, charging remaining time and charging state. In the case that the charging signal indicates that the electric vehicle is charged by using an alternating current charging gun, the battery management system receives the basic charging information sent at the preset frequency from the vehicle charger of the electric vehicle, and sends the basic charging information to the whole vehicle controller at the preset frequency. The method further includes:

5. The method according to any one of claims 1 to 4, characterized in that, In response to a driving signal of the electric vehicle, the whole vehicle controller shields the charging information sent by the battery management system, or the whole vehicle controller prohibits the battery management system from sending charging information to the whole vehicle controller. The basic charging information includes at least one of the following: battery remaining capacity, charging remaining time and charging state; and the target charging information includes at least one of the following: battery remaining capacity, charging remaining time, charging state and drivable mileage.

6. The method of any one of claims 1-4, wherein, The device is applied to an electric vehicle, and the electric vehicle includes a battery management system, a whole vehicle controller, a vehicle gateway, a central control screen controller and a head-up display device.

7. A charge information display device characterized by comprising: The battery management system is configured to send basic charging information to the whole vehicle controller at a preset frequency in response to a charging signal of the electric vehicle; the whole vehicle controller is configured to obtain target charging information according to the basic charging information, and send the target charging information to the vehicle gateway; the vehicle gateway is configured to send the target charging information to the head-up display device through the central control screen controller; and the head-up display device is configured to mirror project the target charging information to a front windshield of the electric vehicle. ​ The electric vehicle further comprises a vehicle-mounted charger, in the process of sending the basic charging information to the vehicle controller according to the preset frequency, the vehicle controller monitors whether the electric vehicle ends charging according to the basic charging information; if the electric vehicle ends charging, the vehicle controller monitors whether the electric vehicle meets the preset condition of entering the hibernation mode; if the electric vehicle meets the preset condition of entering the hibernation mode, the vehicle controller sends a hibernation instruction to the vehicle-mounted charger, the battery management system and the vehicle gateway, the vehicle gateway sends the hibernation instruction to the central control screen controller, and the central control screen controller sends the hibernation instruction to the head-up display device to control the vehicle-mounted charger, the battery management system, the vehicle gateway, the central control screen controller and the head-up display device to hibernate, so that the electric vehicle enters the hibernation mode; The electric vehicle further comprises an external signal receiving module, after the electric vehicle enters the hibernation mode, the external signal receiving module responds to the wake-up signal generated by the third party device and sends the wake-up signal to the vehicle gateway to wake up the vehicle gateway; the vehicle gateway sends the wake-up signal to the vehicle controller and the central control screen controller respectively to wake up the vehicle controller and the central control screen controller; the vehicle controller sends the wake-up signal to the vehicle-mounted charger and the battery management system to wake up the vehicle-mounted charger and the battery management system; the vehicle-mounted charger obtains a first gun insertion state corresponding to the alternating current charging gun after being awakened and transmits the first gun insertion state to the vehicle controller; the battery management system obtains a second gun insertion state corresponding to the direct current charging gun after being awakened and transmits the second gun insertion state to the vehicle controller; the vehicle controller obtains a gun insertion result according to the first gun insertion state and the second gun insertion state, and sends the gun insertion result to the central control screen controller through the vehicle gateway in the case that the gun insertion result represents that the electric vehicle is in the gun insertion state; the central control screen controller wakes up the head-up display device in the case that the gun insertion result represents that the electric vehicle is in the gun insertion state; the battery management system sends first charging information of the electric vehicle to the vehicle controller; the vehicle controller obtains second charging information according to the first charging information and sends the second charging information to the head-up display device through the vehicle gateway and the central control screen controller; the head-up display device mirrors and projects the second charging information to the front windshield of the electric vehicle.

8. An electric vehicle, characterized by Comprise: The battery management system, the vehicle controller, the vehicle gateway, the central control screen controller and the head-up display device connected in turn, for realizing a charging information display method as claimed in any one of claims 1 to 6.

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