Charging information display method and device and electric vehicle

Abstract

The invention discloses a charging information display method and device and an electric vehicle, and the method comprises the steps that a battery management system responds to a charging signal of the electric vehicle, and sends basic charging information to a vehicle control unit according to a preset frequency; the vehicle control unit 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 projects the target charging information to a front windshield of the electric vehicle in a mirroring manner, so that a user can check the target charging information outside the electric vehicle. A user does not need to repeatedly unlock the vehicle and repeatedly get in and out of the vehicle to check the charging state of the electric vehicle, 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, the use convenience of the user is greatly improved, and the user experience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicles, and in particular to a charging information display method, device and electric vehicle. Background Art

[0002] An electric car is a car that is powered by the electric energy stored in the power battery. Electric cars are charged through charging piles to replenish the power battery. The charging time of electric cars is relatively long. In order to view the charging information of electric cars, users usually need to open the door and enter the car to obtain the charging information by observing the display inside the car.

[0003] However, this method requires the user to repeatedly unlock the vehicle and repeatedly enter and exit the vehicle to view the charging information of the electric vehicle, which is not very convenient and leads to poor user experience. Therefore, how to display the vehicle charging information so that users can view the vehicle charging information more conveniently is a problem that needs to be solved urgently. Summary of the invention

[0004] The embodiments of the present application provide a charging information display method, device and electric vehicle, which solves the technical problem in the prior art that a user needs 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. The embodiments of the present application enable the user to view the vehicle charging information outside the vehicle, thereby improving the technical effect of convenience.

[0005] In a first aspect, the present application provides a charging information display method, which is applied to an electric vehicle, wherein 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 method includes:

[0006] 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;

[0007] The vehicle controller obtains target charging information according to 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 device projects the target charging information onto the front windshield of the electric vehicle in a mirror-image manner.

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

[0011] The vehicle controller monitors whether the electric vehicle has finished charging according to the basic charging information;

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

[0013] 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 sleep, so that the electric vehicle enters the sleep mode.

[0014] Furthermore, the electric vehicle further comprises an external signal receiving module. After the electric vehicle enters the sleep mode, the method further comprises:

[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 vehicle charger and the battery management system to wake up the vehicle charger and the battery management system;

[0017] After being awakened, the on-board charger obtains a first plug-in state corresponding to the AC charging plug, and transmits the first plug-in state to the vehicle controller;

[0018] After being awakened, the battery management system obtains a second plug-in state corresponding to the DC charging plug, and transmits the second plug-in state to the vehicle controller;

[0019] The vehicle controller obtains a gun plugging result according to the first gun plugging state and the second gun plugging state, and when it is determined that the gun plugging result indicates that the electric vehicle is in a gun plugging state, sends the gun plugging result to the central control screen controller through the vehicle gateway;

[0020] The central control screen controller wakes up the head-up display device when determining that the gun plugging result indicates that the electric vehicle is in a gun plugging state;

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

[0022] 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;

[0023] The head-up display device projects the second charging information onto the front windshield of the electric vehicle in a mirror-image manner.

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

[0025] Furthermore, after the head-up display device projects the second charging information onto the front 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] The vehicle controller, in response to the end feedback signal, determines 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;

[0028] When 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 instruction to the on-board charger, the battery management system and the vehicle gateway, the vehicle gateway sends the sleep instruction to the central control screen controller and the external signal receiving module, and the central control screen controller sends the sleep instruction 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 sleep, so that the electric vehicle enters sleep mode.

[0029] Furthermore, 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, 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 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 the battery management system sends the basic charging information to the vehicle controller at the preset frequency; or,

[0031] The battery management system responds to the charging signal of the electric vehicle. When the charging signal indicates that the electric vehicle is charged using a DC charging gun, the battery management system generates the basic charging information according to the preset frequency and sends the basic charging information to the vehicle controller according to the preset frequency.

[0032] Furthermore, the method further comprises:

[0033] In response to the driving signal of the electric vehicle, the vehicle controller shields 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 remaining battery power, the remaining charging time and the charging status; the target charging information includes at least one of the remaining battery power, the remaining charging time, the charging status and the drivable mileage.

[0035] In a second aspect, the present application provides a charging information display device, which is applied to an electric vehicle, wherein 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 according to 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-project the target charging information onto the front windshield of the electric vehicle, so that a user can view the target charging information outside the electric vehicle.

[0040] Furthermore, the electric vehicle further comprises an on-board charger, and the vehicle controller is used for monitoring whether the electric vehicle has finished charging according to the basic charging information when sending the basic charging information to the vehicle controller at a preset frequency;

[0041] If the electric vehicle ends 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 the sleep mode, the vehicle controller is used to send a sleep command to the on-board charger, the battery management system and the vehicle gateway, the vehicle gateway is used to send the sleep command to the central control screen controller, and the central control screen controller is used to send 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 sleep, so that the electric vehicle enters the sleep mode.

[0043] Furthermore, the electric vehicle further comprises an external signal receiving module, and after the electric vehicle enters the 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 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 vehicle charger and the battery management system to wake up the vehicle charger and the battery management system;

[0045] The on-board charger is used to obtain a first plug-in state corresponding to the AC charging plug after being awakened, and transmit the first plug-in state to the vehicle controller;

[0046] The battery management system is used to obtain a second plug-in state corresponding to the DC charging plug after waking up, and transmit the second plug-in state to the vehicle controller;

[0047] The vehicle controller is used to obtain a gun plugging result according to the first gun plugging state and the second gun plugging state, and when it is determined that the gun plugging result indicates that the electric vehicle is in a gun plugging state, send the gun plugging result 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 gun plugging result indicates that the electric vehicle is in a gun plugging 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 according to 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-project the second charging information onto the front windshield of the electric vehicle.

[0052] Furthermore, 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, 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 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 the battery management system sends the basic charging information to the vehicle controller at the preset frequency; or,

[0054] The battery management system responds to the charging signal of the electric vehicle. When the charging signal indicates that the electric vehicle is charged using a DC charging gun, the battery management system generates the basic charging information according to the preset frequency and sends the basic charging information to the vehicle controller according to the preset frequency.

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

[0056] Further, after the head-up display device projects the second charging information onto the front windshield of the electric vehicle, the external signal receiving module is used to respond to an 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 the wake-up signal received and forwarded by the vehicle gateway from the external signal receiving module is received within a preset time period;

[0058] When 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 is used to send the sleep instruction to the on-board charger, the battery management system and the vehicle gateway, and the vehicle gateway is used to send the sleep instruction to the central control screen controller and the external signal receiving module, and the central control screen controller is used to send the sleep instruction 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 sleep, so that the electric vehicle enters sleep mode.

[0059] Further, 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 charged using an AC charging gun, the battery management system is used to receive the basic charging information sent at the preset frequency from the on-board charger of the electric vehicle, and the battery management system is used to send 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 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 driving signal of the electric vehicle, the vehicle controller is used to shield the charging information sent by the battery management system, or the vehicle controller is used to prohibit the battery management system from sending charging information to the vehicle controller.

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

[0063] In a third aspect, the present 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 the present application have at least the following technical effects or advantages:

[0065] The embodiment of the present application utilizes the battery management system, vehicle controller, vehicle gateway, central control screen controller, head-up display device and other components of the electric vehicle itself without adding additional hardware or changing the electric vehicle's own architecture, and projects the target charging information onto the front windshield during the charging process of the electric vehicle. In this way, the user does not need to repeatedly unlock the vehicle and repeatedly enter and exit the vehicle to check the charging status of the electric vehicle. Instead, 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, which greatly improves the user's convenience and enhances the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

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

[0068] Figure 2 A schematic diagram of a charging information display method provided in an embodiment of the present application;

[0069] Figure 3 A schematic diagram of another electric vehicle architecture provided in an embodiment of the present application;

[0070] Figure 4 A flowchart of another charging information display method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0071] The embodiment of the present application provides a charging information display method, which solves the technical problem in the prior art that the user needs to repeatedly unlock the vehicle and repeatedly enter and exit the vehicle to view the charging information of the electric vehicle, which is not very convenient.

[0072] The technical solution of the embodiment of the present application is to solve the above technical problems, and the overall idea is as follows:

[0073] A charging information display method, the method 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 method includes: 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; the vehicle controller obtains target charging information based on 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; the head-up display device mirrors the target charging information onto the front windshield of the electric vehicle, so that a user can view the target charging information outside the electric vehicle.

[0074] The embodiment of the present application utilizes the battery management system, vehicle controller, vehicle gateway, central control screen controller, head-up display device and other components of the electric vehicle itself without adding additional hardware or changing the electric vehicle's own architecture, and projects the target charging information onto the front windshield during the charging process of the electric vehicle. In this way, the user does not need to repeatedly unlock the vehicle and repeatedly enter and exit the vehicle to check the charging status of the electric vehicle. Instead, 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, which greatly improves the user's convenience and enhances the user experience.

[0075] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0076] First of all, the term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

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

[0078] Now based on Figure 1 The electric vehicle shown provides Figure 2 A charging information display method shown includes steps S21 to S24.

[0079] 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;

[0080] Step S22, the vehicle controller obtains target charging information according to 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 front windshield of the electric vehicle, so that the user can view the target charging information 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 for each charge. If an AC charging gun is used for charging, the onboard charger will manage the charging. If a DC charging gun is used for charging, the battery management system will manage the charging.

[0085] The battery management system responds to the charging signal of the electric vehicle. When the charging signal indicates that the electric vehicle is 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 the battery management system sends the basic charging information to the vehicle controller at the preset frequency.

[0086] Alternatively, the battery management system responds to a charging signal of the electric vehicle. When the charging signal indicates that the electric vehicle is 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 for charging, then after the AC charging gun is inserted into the charging port of the electric vehicle, the on-board charger can generate a corresponding charging signal. The on-board charger sends the charging signal to the battery management system, and the charging signal may contain basic charging information. The battery management system receives the basic charging information and sends it to the vehicle controller. Among them, the basic charging information can be customized according to actual needs. For example, the basic charging information may include the remaining battery power SOC (State Of Charge), the charging status, and the remaining charging time. Among them, the charging status may include states such as charging state, charging end state, and charging fault state.

[0088] It should be noted that as the charging time of an electric vehicle changes, the basic charging information will also change. For example, the remaining battery power will gradually increase, and the remaining charging time will gradually shorten. Since the basic charging information will change over time, the on-board charger can send the basic charging information to the battery management system at a preset frequency. The battery management system will also send the received basic charging information to the vehicle controller. Specifically, the battery management system will also send the received basic charging information to the vehicle controller at a preset frequency, so that the charging information of the electric vehicle can be updated in real time, ensuring that users can obtain relatively the latest charging information.

[0089] If a DC charging gun is used for charging, after the DC charging gun is inserted into the charging port of the electric vehicle, the battery management system can generate a corresponding charging signal, which can contain basic charging information. The battery management system sends the basic charging information to the vehicle controller.

[0090] The basic charging information can be customized according to actual needs. For example, the basic charging information may include at least one of the remaining battery capacity SOC (State Of Charge), the charging state, and the remaining charging time. The charging state may include the charging state and the charging fault state.

[0091] It should be noted that as the charging time of the electric vehicle changes, the basic charging information will also change. Then the battery management system will send the basic charging information to the vehicle controller at a preset frequency, so as to ensure that the charging information of the electric vehicle is updated in real time, ensuring that the user can obtain the relatively latest charging information.

[0092] Regarding step S22, the vehicle controller obtains 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, and specifically, the vehicle controller calculates the current drivable mileage of the electric vehicle based on the remaining battery power. In other words, the target charging information may include the basic charging information, and may further include the current drivable mileage. In other words, the target charging information includes at least one of the remaining battery power, the remaining charging time, the charging status, and the drivable mileage.

[0094] After the vehicle controller obtains the target charging information, it 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 the target charging information from the vehicle controller and forwards it to the central control screen controller. The central control screen controller receives the 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 mirror-projects the target charging information onto the front windshield of the electric vehicle, so that the user can view the target charging information outside the electric vehicle.

[0098] The head-up display device projects the target charging information onto the front windshield of the electric vehicle, and the projection is mirrored on the front windshield. The user can observe the front windshield outside the electric vehicle to obtain the target charging information currently corresponding to the electric vehicle.

[0099] It should be noted that, usually, the image information projected by the head-up display device on the windshield is for users to view inside the vehicle, but the embodiment of the present application needs to satisfy the user's need to view the projection information of the head-up display device outside the vehicle. Therefore, the target charging information needs to be mirrored and then projected onto the front windshield, so that the projection information seen by the user outside the vehicle is normal, which is convenient for the user to obtain the charging information directly outside the vehicle.

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

[0101] Of course, in addition to this, when the electric vehicle is in the charging process, the electric vehicle can also monitor whether the vehicle key or the mobile terminal matched with the electric vehicle enters the preset range of the electric vehicle. If it enters the preset range, step S21 to step S24 are executed again, so that energy can be saved while facilitating the user to view the charging information of the electric vehicle.

[0102] In summary, the embodiment of the present application utilizes the battery management system, vehicle controller, vehicle gateway, central control screen controller, head-up display device and other components of the electric vehicle itself without adding additional hardware or changing the architecture of the electric vehicle itself, and projects the target charging information onto the front windshield during the charging process of the electric vehicle. In this way, the user does not need to repeatedly unlock the vehicle and repeatedly enter and exit the vehicle to check the charging status of the electric vehicle. Instead, 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, which greatly improves the user's convenience and enhances the user experience.

[0103] exist Figure 1 Based on the architectural diagram of the electric vehicle shown and the aforementioned method, an embodiment of the present application provides another charging information display method, which specifically includes steps S31 to S33, which are executed in 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 according to 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 the 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 sleep, so that the electric vehicle enters the sleep mode.

[0107] Regarding step S31, the basic charging information includes at least one of the remaining battery power, the remaining charging time, and the charging status. The vehicle controller can determine whether the electric vehicle has finished charging based on the basic charging information. If the basic charging information indicates that charging has not ended, step S31 is continued until some basic charging information indicates that charging has ended, and then step S32 is continued.

[0108] Regarding step S32, if the electric vehicle ends charging, the vehicle controller monitors whether the electric vehicle meets the preset conditions for entering the sleep mode. The preset conditions can refer to the relevant technology, and the embodiment of the present application does not limit this. If the preset conditions for entering the sleep mode are not met, step S31 is continued until the vehicle starts, and there is no need to perform subsequent steps. Alternatively, if the preset conditions for entering the sleep mode are not met, step S31 is continued until the electric vehicle meets the preset conditions for entering the sleep mode, and then step S33 is continued.

[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 related 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] The head-up display device goes into sleep mode, which means that the charging information will not be displayed on the front windshield. When the user cannot see the charging information outside the car, he can know that the electric car has finished charging. The user does not need to unlock the vehicle and enter the vehicle to check the charging status of the electric car. Instead, the user can simply and clearly know that the electric car has finished charging by observing the windshield of the electric car from outside the car, which greatly improves the user's convenience and enhances the user experience.

[0111] After the electric vehicle enters the sleep mode, the present application embodiment also provides another charging information display method, which is applied to Figure 3 The architecture of an electric vehicle is shown. Figure 3 is Figure 1The electric vehicle architecture shown in the figure is obtained based on the following: 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 electric vehicle matches the external signal receiving module, and specifically may include at least one device selected from 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 may be the key of the electric vehicle, which has a key-side Bluetooth module that matches the vehicle-side Bluetooth module. When the external signal receiving module is a Bluetooth module, the third-party device may also be a mobile terminal that matches the electric vehicle, which has a mobile-side Bluetooth module that matches the vehicle-side Bluetooth module.

[0114] When the external signal receiving module is a near field communication module (NFC), the third-party device may be the key of the electric vehicle, which has a key-side NFC module that matches the vehicle-side NFC module. When the external signal receiving module is an NFC module, the third-party device may 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 a door handle sensing 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 sensing module of the electric vehicle itself. When the user touches or senses the door handle sensing module, the door handle sensing module generates a corresponding trigger signal.

[0116] After the electric vehicle enters the sleep mode, another charging information display method provided by the embodiment of the present application is as follows: Figure 4 As shown, it specifically includes steps S41 to 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] 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 vehicle charger and the battery management system to wake up the vehicle charger and the battery management system;

[0119] Step S43, after being awakened, the on-board charger obtains a first plug-in state corresponding to the AC charging plug, and transmits the first plug-in state to the vehicle controller;

[0120] Step S44, the battery management system obtains a second plug-in state corresponding to the DC charging plug after being awakened, and transmits the second plug-in state to the vehicle controller;

[0121] Step S45, the vehicle controller obtains a gun plugging result according to the first gun plugging state and the second gun plugging state, and when it is determined that the gun plugging result indicates that the electric vehicle is in a gun plugging state, sends the gun plugging result to the central control screen controller through the vehicle gateway;

[0122] Step S46, the central control screen controller wakes up the head-up display device when determining that the gun plug-in result indicates that the electric vehicle is in a gun plug-in state;

[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 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;

[0125] Step S49: the head-up display device projects the second charging information onto the front windshield of the electric vehicle in a mirror image, so that the user can view the second charging information outside the electric vehicle.

[0126] Regarding step S41, the third-party device is usually carried by the user. For example, when the third-party device is a key of an electric vehicle or a mobile terminal matched with the electric vehicle, when the user carries the third-party device close to the electric vehicle, the external signal receiving module receives a wake-up signal sent by the third-party device, such as a Bluetooth signal or an NFC signal, and the external signal receiving module sends the wake-up signal to the vehicle gateway to wake up the vehicle gateway.

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

[0128] Regarding step S42, after the vehicle gateway is awakened, other related modules of the electric vehicle are awakened respectively, so that the whole vehicle controller, the central control screen controller, the on-board charger and the battery management system are awakened.

[0129] Regarding step S43, the onboard charger manages the relevant information of the AC charging gun. After waking up, the onboard charger can obtain the first plug-in state related to the AC charging gun and transmit it to the vehicle controller. The first plug-in state can be plugged in or not plugged in.

[0130] Regarding step S44, the battery management system manages the relevant information of the DC charging gun. After waking up, the battery management system can obtain a second plug-in state related to the DC charging gun and transmit the second plug-in state to the vehicle controller. The second plug-in state can be plugged in or not plugged in.

[0131] Regarding step S45, the vehicle controller obtains the gun insertion result according to the first gun insertion state and the second gun insertion state. When at least one of the first gun insertion state and the second gun insertion state is gun inserted, the gun insertion result is gun inserted, and when both of the first gun insertion state and the second gun insertion state are not gun inserted, the gun insertion result is not gun inserted.

[0132] The vehicle controller determines whether the gun is plugged in or not plugged in. If the gun is not plugged in, no subsequent steps need to be performed, but the system waits to enter sleep mode or waits for the user's next operation. If the gun is plugged in, the gun plugging result is sent to the central control screen controller through the vehicle gateway, and step S46 is continued.

[0133] Regarding step S46, the central control screen controller wakes up the head-up display device when determining that the gun plugging result indicates that the electric vehicle is in a gun-plugged state.

[0134] Regarding steps S47 to S49, the principle is similar to that of steps S21 to S24, except that steps S21 to S24 are executed by triggering a charging signal, while steps S47 to S49 are executed by triggering the electric vehicle component to wake up. The first charging information of steps S47 to S49 is similar to the basic charging information of steps S21 to S24, and the second charging information of steps S47 to S49 is similar to the target charging information of steps S21 to S24, except that the first charging information and the second charging information represent the charging information after the charging is completed, while the basic charging information and the target charging information represent the charging information during the charging process.

[0135] It can be seen that after the electric vehicle is charged and enters the sleep mode, the embodiment of the present application monitors the user's movements or intentions through the external information receiving module, and can control the vehicle to wake up when the user approaches, and then control the head-up display device to display the current charging information. The user does not need to unlock the vehicle and enter the vehicle to view the charging information of the electric vehicle. Instead, 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, which greatly improves the user's convenience and enhances the user experience.

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

[0137] Step S61, 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;

[0138] Step S62, the vehicle controller responds to the end feedback signal and determines 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;

[0139] Step S63, when 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 instruction to the on-board charger, the battery management system and the vehicle gateway, and the vehicle gateway sends the sleep instruction to the central control screen controller and the external signal receiving module, and the central control screen controller sends the sleep instruction 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 sleep, so that the electric vehicle enters sleep mode.

[0140] Regarding step S61, when the wake-up signal of the third-party device disappears, it means that the user has carried the third-party device away from the vehicle. The embodiment of the present application monitors whether the wake-up signal of the third-party device disappears through the external signal receiving module. If the wake-up signal disappears for a certain period of time (for example, 3 minutes), an end feedback signal is generated and sent to the vehicle controller through the vehicle gateway. If it 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, the vehicle controller responds to the end feedback signal and determines whether a wake-up signal received and forwarded by the vehicle gateway from the external signal receiving module is received within a preset time. If a wake-up signal is received, it continues to return to step S61, and if no wake-up signal is received, it continues to execute step S62.

[0142] Regarding step S63, if no wake-up signal is received within the preset time, the vehicle controller can send a sleep command to the relevant module to put the electric vehicle into sleep mode. This can reduce unnecessary energy loss and reduce the risk of low-voltage battery power feeding after the electric vehicle is charged and the user does not need to check the charging status.

[0143] Furthermore, when the user operates the electric vehicle, or when the user needs to use the vehicle, a corresponding driving signal is generated through the user's trigger. In response to the driving signal of the electric vehicle, the vehicle controller shields 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, in the process of the user using the vehicle, from the perspective of the vehicle controller or the battery management system, the charging information is avoided from being sent to the head-up display device, ensuring that the head-up display device does not display the charging information during the non-charging period, avoiding conflicts in the display information of the head-up display device, and thus ensuring the user's driving safety.

[0144] In addition, in step S63, the head-up display device can also be controlled to sleep in a timing manner. For example, the vehicle controller sends a sleep signal to the head-up display device through the central control screen controller, and the head-up display device waits for a certain period of time (for example, 3 minutes) after receiving the sleep signal, and then terminates the projection of the charging information and enters the sleep state.

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

[0146] When an electric vehicle is charging, the BMS will send the current battery remaining power SOC, remaining charging time, and charging status to the PDCM. The PDCM calculates the current mileage based on the battery remaining power SOC, and finally forwards the four display information of SOC, remaining charging time, charging status and mileage to the VIV through the GW in real time. The VIV transmits the information to the HUD through video, and the HUD is projected onto the specified area of ​​the front windshield through mirror projection. The charging information will always be displayed in the specified area of ​​the front windshield, and the end user can clearly see the set charging information outside the car.

[0147] When the electric vehicle has finished charging in DC charging mode or AC charging mode and the vehicle has entered sleep mode, when the user approaches the vehicle with the vehicle key, the key activates the vehicle Bluetooth module through Bluetooth communication, and the Bluetooth module wakes up the vehicle gateway GW, and the gateway wakes up the vehicle controller PDCM and the central control screen controller VIV respectively, and the vehicle controller wakes up the on-board charger OBC and the battery management system BMS. At this time, when the BMS or OBC wakes up, it will determine the gun plugging status and report the gun status to the PDCM. The PDCM sends the gun plugging signal to VIV through the gateway GW. VIV will immediately activate the head-up display device HUD when it recognizes the gun plugging signal.

[0148] After all the related modules of the electric vehicle are awakened, the BMS will send the current battery remaining power SOC and charging status to the PDCM. The PDCM calculates the mileage based on the SOC, and finally forwards the three display information of SOC, charging status and mileage to the VIV through the GW. The VIV transmits the information to the HUD through video, and the HUD is projected to the designated area of ​​the front windshield through mirror projection. Finally, the user can clearly see the set charging information outside the car. The electric vehicle will automatically go into sleep again 3 minutes after the user leaves the vehicle, and the charging information will be removed from the display on the front windshield, which can avoid the low-voltage battery feeding of the whole vehicle.

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

[0150] At present, many models on the market are equipped with head-up display functions. Usually, the current HUD is only useful during driving and useless in non-driving conditions. The embodiment of the present application makes full use of the head-up display function and related hardware to expand the charging information display function, which does not increase the hardware cost of the whole vehicle, nor change the electrical architecture of the whole vehicle, and can also realize more charging information display outside the vehicle, providing users with a convenient way to understand charging information, greatly improving the user experience.

[0151] The embodiment of the present application designs a charging information off-vehicle display solution based on the existing hardware of the whole vehicle, which does not increase the hardware cost of the whole vehicle, does not change the electrical architecture of the whole vehicle, and can also realize the off-vehicle charging information display; at the same time, it can avoid customers frequently entering and exiting the vehicle and the vehicle instrument being repeatedly awakened, providing users with convenient and easy access to charging information, greatly improving the user experience.

[0152] Based on the same inventive concept, an embodiment of the present application provides a charging information display device, which is applied to an electric vehicle, and 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 according to 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-project the target charging information onto the front windshield of the electric vehicle, so that a user can view the target charging information outside the electric vehicle.

[0157] Furthermore, the electric vehicle further comprises an on-board charger, and the vehicle controller is used for monitoring whether the electric vehicle has finished charging according to the basic charging information when sending the basic charging information to the vehicle controller at a preset frequency;

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

[0159] If the electric vehicle meets the preset conditions for entering the sleep mode, the vehicle controller is used to send a sleep command to the on-board charger, the battery management system and the vehicle gateway, and the vehicle gateway is used to send 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 sleep, so that the electric vehicle enters the sleep mode.

[0160] Furthermore, the electric vehicle further comprises an external signal receiving module, and after the electric vehicle enters the 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 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 vehicle charger and the battery management system to wake up the vehicle charger and the battery management system;

[0162] The on-board charger is used to obtain a first plug-in state corresponding to the AC charging plug after being awakened, and transmit the first plug-in state to the vehicle controller;

[0163] The battery management system is used to obtain a second plug-in state corresponding to the DC charging plug after waking up, and transmit the second plug-in state to the vehicle controller;

[0164] The vehicle controller is used to obtain a gun plugging result according to the first gun plugging state and the second gun plugging state, and when it is determined that the gun plugging result indicates that the electric vehicle is in a gun plugging state, send the gun plugging result 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 gun plugging result indicates that the electric vehicle is in a gun plugging 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 according to 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-project the second charging information onto the front windshield of the electric vehicle, so that a user can view the second charging information outside the electric vehicle.

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

[0170] Further, after the head-up display device projects the second charging information onto the front windshield of the electric vehicle, the external signal receiving module is used to respond to an 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 the wake-up signal received and forwarded by the vehicle gateway from the external signal receiving module is received within a preset time period;

[0172] When 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 is used to send the sleep instruction to the on-board charger, the battery management system and the vehicle gateway, and the vehicle gateway is used to send the sleep instruction to the central control screen controller and the external signal receiving module, and the central control screen controller is used to send the sleep instruction 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 sleep, so that the electric vehicle enters sleep mode.

[0173] Further, 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 charged using an AC charging gun, the battery management system is used to receive the basic charging information sent at the preset frequency from the on-board charger of the electric vehicle, and the battery management system is used to send 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 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 driving signal of the electric vehicle, the vehicle controller is used to shield the charging information sent by the battery management system, or the vehicle controller is used to prohibit the battery management system from sending charging information to the vehicle controller.

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

[0177] Based on the same inventive concept, an embodiment of the present 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 provided above.

[0178] Since the electronic device introduced in this embodiment is an electronic device used to implement the information processing method in the embodiment of the present application, based on the information processing method introduced in the embodiment of the present application, a person skilled in the art can understand the specific implementation of the electronic device of the present embodiment and its various variations, so how the electronic device implements the method in the embodiment of the present application is not described in detail here. As long as a person skilled in the art implements the electronic device used by the information processing method in the embodiment of the present application, it belongs to the scope of protection of this application.

[0179] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented 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] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0181] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0182] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1The steps for the functions specified in one or more boxes.

[0183] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0184] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A charging information display method, characterized in that: Applied to electric vehicles, the electric vehicles include 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 responds to the charging signal of the electric vehicle and sends basic charging information to the vehicle controller at a preset frequency; 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; The head-up display device projects the target charging information onto the front windshield of the electric vehicle in a mirror-image manner.

2. The method according to claim 1, characterized in that The electric vehicle further includes an on-board charger. In the process of sending basic charging information to the vehicle controller at a preset frequency, the method further includes: The vehicle controller monitors whether the electric vehicle has finished charging according to the basic charging information; If the electric vehicle ends charging, the vehicle controller monitors whether the electric vehicle meets the preset conditions for entering the sleep mode; 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 sleep, so that the electric vehicle enters the sleep mode.

3. The method according to claim 2, characterized in that The electric vehicle further includes an external signal receiving module. After the electric vehicle enters the sleep mode, the method further includes: 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; 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 charger and the battery management system to wake up the vehicle charger and the battery management system; After being awakened, the on-board charger obtains a first plug-in state corresponding to the AC charging plug, and transmits the first plug-in state to the vehicle controller; After being awakened, the battery management system obtains a second plug-in state corresponding to the DC charging plug, and transmits the second plug-in state to the vehicle controller; The vehicle controller obtains a gun plugging result according to the first gun plugging state and the second gun plugging state, and when it is determined that the gun plugging result indicates that the electric vehicle is in a gun plugging state, sends the gun plugging result to the central control screen controller through the vehicle gateway; The central control screen controller wakes up the head-up display device when determining that the gun plugging result indicates that the electric vehicle is in a gun plugging state; The battery management system sends the 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 projects the second charging information onto the front windshield of the electric vehicle in a mirror-image manner.

4. The method according to claim 3, characterized in that The external signal receiving module includes a Bluetooth module, a near field communication module and at least one of the door handle sensing modules of the electric vehicle; the third-party device includes a key of the electric vehicle, a mobile terminal matched with the electric vehicle and at least one of the door handle sensing modules of the electric vehicle.

5. The method according to claim 3, characterized in that After the head-up display device mirror-projects the second charging information onto the front windshield of the electric vehicle, the method further includes: 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; The vehicle controller, in response to the end feedback signal, determines 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; When 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 instruction to the on-board charger, the battery management system and the vehicle gateway, the vehicle gateway sends the sleep instruction to the central control screen controller and the external signal receiving module, and the central control screen controller sends the sleep instruction 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 sleep, so that the electric vehicle enters sleep mode.

6. The method according to claim 1, characterized in that 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, including: The battery management system responds to the charging signal of the electric vehicle. When the charging signal indicates that the electric vehicle is 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 the battery management system sends the basic charging information to the vehicle controller at the preset frequency; or, The battery management system responds to the charging signal of the electric vehicle. When the charging signal indicates that the electric vehicle is charged using a DC charging gun, the battery management system generates the basic charging information according to the preset frequency and sends the basic charging information to the vehicle controller according to the preset frequency.

7. The method according to any one of claims 1 to 6, characterized in that: The method further comprises: In response to the driving signal of the electric vehicle, the vehicle controller shields 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.

8. The method according to any one of claims 1 to 6, characterized in that: The basic charging information includes at least one of the remaining battery power, the remaining charging time and the charging status; the target charging information includes at least one of the remaining battery power, the remaining charging time, the charging status and the drivable mileage.

9. A charging information display device, characterized in that: The device is applied to an electric vehicle, which 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: 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; The vehicle controller is used 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 used to send the target charging information to the head-up display device through the central control screen controller; The head-up display device is used to mirror-project the target charging information onto the front windshield of the electric vehicle.

10. An electric vehicle, characterized in that: include: A battery management system, a vehicle controller, a vehicle gateway, a central control screen controller and a head-up display device connected in sequence are used to implement a charging information display method as described in any one of claims 1 to 8.

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