Automotive head unit screen control method and related apparatus

Abstract

Disclosed are an automotive head unit screen control method and a related apparatus, applicable in the field of vehicle control. The method comprises: a head unit detecting the reception status of remote signals and a brake signal; when the head unit receives a remote signal containing a start command and does not receive the brake signal, controlling an automotive head unit screen to remain in an off state; and when the head unit receives a remote signal without any command and the brake signal, controlling the automotive head unit screen to enter an on state. Thus, by utilizing the preexisting brake signal and the preexisting remote signals issued by a wireless control module, it is possible to quickly determine whether the automotive head unit screen needs to remain off, thereby reducing the occurrence of problems such as flickering of the head unit screen during remote start-up.

Description

Control method and related device for vehicle host screen

[0001] The present invention claims priority to Chinese patent application number 202311435126.7 filed with the State Intellectual Property Office of the People's Republic of China on October 31, 2023, entitled “Control Method and Related Device for Vehicle Host Screen”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present invention relates to the field of vehicle control technology, and in particular to a control method and related devices for a vehicle host screen. Background Art

[0003] With the development of vehicle-related technologies, more and more vehicles can support remote start function. Since users do not need to use the host screen when remote starting the vehicle, they usually hope that the vehicle's host screen remains off during remote starting.

[0004] During the vehicle startup process, the power mode switches from OFF to CRANK and then to ON. The CRANK position corresponds to the engine or motor startup process, during which the IG relay is energized to start powering the vehicle. Currently, during remote startup, the logic processing of the remote startup signal Remotemodsts and the power mode signal Syspowermod is usually triggered simultaneously, and the remote signal is identified to determine whether to keep the host screen off. However, due to the inconsistency between the bus signal cycles of the remote signal and the power mode signal, the logic processing and signal update time of the remote signal may be later than that of the power mode signal, resulting in abnormal conditions such as flickering of the host screen during startup. This not only affects the user experience, but may also cause damage to the vehicle's electronic equipment and control systems.

[0005] Therefore, how to improve abnormal situations such as the host screen flickering when remotely starting the vehicle has become a problem that needs to be solved.

[0006] Summary of the Invention

[0007] In view of the above problems, the present invention provides a method and related device for controlling a vehicle host screen, which can improve abnormal conditions such as flickering of the host screen when the vehicle is remotely started.

[0008] The embodiment of the present invention discloses the following technical solutions:

[0009] In a first aspect, an embodiment of the present invention provides a method for controlling a vehicle host screen, the method comprising:

[0010] The host detects the reception of the remote signal and the brake signal; the brake signal is a signal generated when the brake pedal is pressed; the remote signal is received earlier than the ignition signal is generated;

[0011] If the host receives a remote signal containing a start command and does not receive the brake signal, the host screen of the vehicle is controlled to remain in the off state; if the host receives a remote signal without a command and the brake signal, the host screen of the vehicle is controlled to be on.

[0012] Optionally, if the host receives the remote signal without a command and the brake signal, controlling the host screen of the vehicle to be turned on includes:

[0013] If the host receives a remote signal without a command and the brake signal, it outputs a screen-on signal to the host screen to control the host screen to an on state.

[0014] Optionally, if the host receives the remote signal including the start command and does not receive the brake signal, after controlling the host screen of the vehicle to remain in an off state, the method further includes:

[0015] If the host receives the braking signal, the host screen of the vehicle is controlled to be turned on.

[0016] Optionally, the method further includes:

[0017] The central electronic module sends an ignition signal to the host in response to the received brake signal or the remote signal containing the start command; the ignition signal is used to light up the host screen in the turned-on state.

[0018] Optionally, when the central electronic module receives a brake signal, before sending an ignition signal to the host, the method further includes:

[0019] The central electronic module obtains the distance between the key of the vehicle and the vehicle;

[0020] The central electronic module sends an ignition signal to the host in response to the received brake signal or the remote signal containing the start command, including:

[0021] In response to the received brake signal, the central electronic module sends an ignition signal to the host when the distance between the vehicle key and the vehicle is less than a preset distance.

[0022] Optionally, the central electronic module obtains the distance between the vehicle key and the vehicle, including:

[0023] The central electronic module receives a wireless signal sent by the vehicle key;

[0024] The central electronic module determines the distance between the vehicle key and the vehicle based on the wireless signal.

[0025] In a second aspect, an embodiment of the present invention provides a control device for a vehicle host screen, the device comprising: a detection module applied to the host and a control module applied to the host;

[0026] The detection module is used to detect the reception of the remote signal and the brake signal; the brake signal is a signal generated when the brake pedal is pressed; the time when the remote signal is received is earlier than the time when the ignition signal is generated;

[0027] The control module is used to control the vehicle's host screen to remain in a closed state when a remote signal containing a start command is received and the brake signal is not received; and to control the vehicle's host screen to an open state when a remote signal without a command and the brake signal are received.

[0028] Optionally, when the host receives the remote signal without command and the brake signal, the control module is specifically configured to:

[0029] Output a screen-on signal to the host screen to control the host screen to be in an on state.

[0030] Optionally, the control module is further configured to:

[0031] After controlling the host screen of the vehicle to maintain the off state, if the first receiving module receives the brake signal, the host screen of the vehicle is controlled to be turned on.

[0032] In a third aspect, an embodiment of the present invention provides a vehicle, which applies the method for controlling a vehicle host screen as described in any embodiment of the first aspect.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] An embodiment of the present invention provides a method for controlling a vehicle host screen. In this method, the host first detects the receipt of a remote signal and a brake signal; the brake signal is a signal generated when the brake pedal is pressed; the remote signal is received before the ignition signal is generated; then, if the host receives a remote signal containing a start command but does not receive a brake signal, the vehicle's host screen is controlled to remain in an off state; if the host receives a remote signal and a brake signal without a command, the vehicle's host screen is controlled to be turned on. In this embodiment of the present invention, by utilizing the brake signal and remote signal that exist before the ignition signal is generated, it is possible to quickly determine whether the vehicle's host screen needs to remain in an off state and perform corresponding control. Therefore, on the one hand, it can avoid the situation in which the host screen of the vehicle needs to be kept in the off state, due to the different bus signal cycles of the remote start signal Remotemodsts=0X1:Remote and the power mode signal Syspowermod=CRANK triggered at the same time, resulting in the update time of the Remote signal being later than the CRANK signal, and then causing problems such as the host screen flickering during the remote start process, causing damage to the vehicle's electronic equipment; on the other hand, in the scenario in which the host screen of the vehicle needs to be controlled to the on state, the host screen of the vehicle can be controlled to the on state before the Remote signal is received, thereby reducing the startup time of the host screen and improving the user experience.

[0035] Other features and advantages of the embodiments of the present invention will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0037] FIG1 is a flow chart of a method for controlling a vehicle host screen according to an embodiment of the present invention;

[0038] FIG2 is a flow chart of another method for controlling a vehicle host screen according to an embodiment of the present invention;

[0039] FIG3 is a schematic diagram of a control device for a vehicle host screen provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0040] The control method and related device of a vehicle host screen provided by the present invention can be used in the field of vehicle control. The above is only an example and does not limit the application field of the control method and related device of a vehicle host screen provided by the present invention.

[0041] The terms "first", "second", "third", and "fourth" in the specification, claims and drawings of the present invention are used to distinguish different objects rather than to limit a specific order.

[0042] In the embodiments of the present invention, words such as "as an example" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "as an example" or "for example" in the embodiments of the present invention should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "as an example" or "for example" is intended to present the relevant concepts in a concrete manner.

[0043] The terms used in the embodiments of the present invention are only used to explain the specific embodiments of the present invention and are not intended to limit the present invention.

[0044] To help those skilled in the art better understand the present invention, the following clearly and completely describes the technical solutions in the embodiments of the present invention, in conjunction with the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0045] Referring to FIG1 , which is a flow chart of a method for controlling a vehicle host screen according to an embodiment of the present invention, the method is applied to a vehicle host. The method includes:

[0046] S101: The host detects the reception of remote signals and brake signals.

[0047] Specifically, the remote signal can be received before the ignition signal is generated. For example, the remote signal can be the T_BOX_RemtEngCtrl signal issued by the vehicle's wireless control module T_BOX, including a remote signal T_BOX_RemtEngCtrl=Start containing a start command and a remote signal T_BOX_RemtEngCtrl=NO Action without a command; the braking signal is a signal generated when the vehicle's brake pedal is subjected to pressure, for example, a BrkPedalSts_BCM=0X1:ON signal is generated when the brake pedal is pressed.

[0048] Exemplarily, the remote signal may be a T_BOX_RemtEngCtrl signal issued by the vehicle's wireless control module T_BOX in response to a remote command issued by a user operating, for example, software on a mobile terminal or a car key; when the vehicle's brake pedal is not under pressure, a BrkPedalSts_BCM=0X0:OFF signal may exist.

[0049] S102: If the host receives a remote signal including a start command and does not receive a brake signal, the host screen of the vehicle is controlled to remain in an off state.

[0050] Specifically, when the user starts the vehicle from inside the car, in order to prevent accidents such as the vehicle rolling or collapsing, it is usually necessary to step on the brakes, so that the vehicle's brake pedal is pressurized and a brake signal is generated. If the host receives a remote signal containing a start command but does not receive a brake signal, it means that the user has sent a remote start request through, for example, the software of a mobile terminal or a car key, and at this time the user may be far away from the vehicle or not driving the vehicle temporarily, and there is a need to not light up the host screen. The vehicle's host screen can be controlled to remain in an off state. In this case, the vehicle's central electronic module CEM executes the process of starting the vehicle. About 200 milliseconds after the CEM receives the remote signal containing the start command, the host can receive the ignition signal Syspowermod=CRANK sent by the CEM, but the vehicle's host does not output a screen-on signal to the host screen, so that the vehicle's host screen remains in an off state.

[0051] For example, the host of the vehicle can first obtain the current switch status of the host screen. If the host screen is currently in the off state, the host does not output a screen-on signal to the host screen; if the host screen is currently in the on state, the host outputs a screen-off signal to the host screen, so that the host screen of the vehicle can remain in the off state after being powered on.

[0052] S103: If the host receives a remote signal without a command and a brake signal, the host screen of the vehicle is controlled to be turned on.

[0053] If the host receives a remote signal and a brake signal without a command, it indicates that the brake pedal is being pressed and the user has not used the remote start function. This indicates that the user is starting the vehicle from inside the vehicle and needs to use the host screen. The host screen can be controlled to turn on. In this case, the vehicle's Central Electronic Module (CEM) executes the vehicle start process, and the vehicle's host can output a screen-on signal to the host screen to turn on the vehicle's host screen.

[0054] For example, the host of the vehicle can first obtain the current switch status of the host screen. If the host screen is currently in the off state, the host outputs a screen-on signal to the host screen; if the host screen is currently in the on state, the host may not output a screen-off signal or a screen-on signal to the host screen, so that the host screen of the vehicle can be controlled to the on state.

[0055] In the vehicle host screen control method provided in an embodiment of the present invention, by identifying the remote signal T_BOX_RemtEngCtrl and the brake signal BrkPedalSts_BCM=0X1:ON issued by T_BOX before the power mode signal Syspowermod changes to CRANK, it is possible to avoid the problem of the host screen flickering during the remote start process due to the different bus signal cycles of the remote start signal Remotemodsts=0X1:Remote and the power mode signal Syspowermod=CRANK being triggered simultaneously in the scenario where the vehicle host screen needs to remain in the off state, thereby damaging the vehicle's electronic equipment. For example, the update period of the power mode signal is 50 milliseconds, while the update period of the remote start signal Remote is 100 milliseconds. As a result, the update time of the Remote signal may be later than the CRANK signal, resulting in the host screen flickering during the remote start process, damaging the vehicle's electronic equipment.

[0056] In an embodiment of the present invention, the use of the previously existing brake signal and the remote signal sent by the wireless control module can quickly determine whether the vehicle's host screen needs to remain in the off state and perform corresponding control. This can, on the one hand, avoid the situation where the vehicle's host screen needs to remain in the off state, where the Remote signal is updated later than the CRANK signal, thereby avoiding problems such as the host screen flickering during the remote start process, which can damage the vehicle's electronic equipment. On the other hand, in the scenario where the vehicle's host screen needs to be controlled to the on state, the vehicle's host screen can be controlled to the on state before the Remote signal is received, thereby reducing the host screen startup time and improving the user experience.

[0057] Referring to FIG. 2 , which is a flow chart of another method for controlling a vehicle host screen according to an embodiment of the present invention, the method includes:

[0058] S201: The host detects the reception of remote signals and brake signals.

[0059] Specifically, the remote signal T_BOX_RemtEngCtrl includes a remote signal T_BOX_RemtEngCtrl=Start containing a start command and a remote signal T_BOX_RemtEngCtrl=NO Action without a command, which is sent by the vehicle's wireless control module T_BOX. The braking signal is a signal BrkPedalSts_BCM=0X1:ON generated when the brake pedal is under pressure when an action such as stepping on the brake occurs.

[0060] S202: The CEM detects the reception of the braking signal and the remote signal; if a braking signal is present, the step S203 is executed; if no braking signal is present and a remote signal containing a start command is present, the step S207 is executed; if no braking signal is present and a remote signal without a command is present, the step S206 is executed.

[0061] For example, steps S201 and S202 can be performed simultaneously or sequentially. If a brake signal is present, it can be assumed that the user may have pressed the brake pedal to start the vehicle from within the vehicle. The CEM can then proceed to step S203 to further identify whether the user has pressed the brake pedal from within the vehicle. If a remote signal containing a start command is present, and no brake signal is present, it can be assumed that the user is attempting to remotely start the vehicle, for example, by controlling a mobile terminal's software or a car key. The CEM can then initiate an ignition process to start the engine and proceed to step S207.

[0062] S203: The CEM receives a wireless signal sent by the vehicle key.

[0063] Specifically, when there is a brake signal, the CEM may further receive a wireless signal sent by the vehicle key, such as a Bluetooth signal or a radio frequency identification signal.

[0064] S204: The CEM determines the distance between the vehicle key and the vehicle based on the wireless signal.

[0065] Specifically, the distance between the vehicle key and the vehicle can be determined by the strength of the received wireless signal, thereby determining whether the user is nearby.

[0066] S205: The CEM determines whether the distance between the vehicle key and the vehicle is less than a preset distance. If so, the CEM executes step S207; if not, the CEM executes step S206.

[0067] For example, a distance can be set by setting the minimum strength of the wireless signal. If the strength of the wireless signal is higher than the set minimum strength, it can be considered that the distance between the key and the vehicle is less than the preset distance. At this time, it can be considered that the key is in the car, and it is the user who stepped on the brake pedal, and the user has a need to start the car.

[0068] Optionally, if the distance between the vehicle key and the vehicle is greater than a preset distance, it can be considered that the person who stepped on the brake pedal was not the user himself or the user forgot to bring the car key. A corresponding alarm message can be remotely sent to the user's mobile terminal and step S210 is repeated.

[0069] S206: The CEM sends a shutdown signal to the host.

[0070] When the vehicle is not started, the power mode signal sent by the CEM to the host is a shutdown signal Syspowermod=OFF.

[0071] S207: The CEM sends an ignition signal to the host.

[0072] When the CEM attempts to start the vehicle, the vehicle will briefly enter CRANK mode. In this mode, the vehicle's power supply will provide additional power to ensure that the vehicle engine can be successfully started. At this time, the power mode signal sent by the CEM to the host is the ignition signal Syspowermod=CRANK.

[0073] S208: The CEM sends an operation signal to the host.

[0074] Once the engine is successfully started, the vehicle enters RUN mode. In this mode, all electronic equipment and electrical systems of the vehicle can operate normally. At this time, the power mode signal sent by the CEM to the host is the operating signal Syspowermod = ON.

[0075] S209: The host receives a power mode signal from the vehicle; when the received power mode signal is an ignition signal, step S210 is executed.

[0076] Exemplarily, the power mode signal may include a shutdown signal Syspowermod=OFF, an ignition signal Syspowermod=CRANK, and an operation signal Syspowermod=ON; the vehicle's central electronic module CEM (Central Electronic Module) can enable the power mode to switch from OFF to CRANK and then to ON, thereby starting the vehicle, and sending the corresponding power mode signal to the vehicle's bus, and the vehicle's host can receive the power mode signal through the bus.

[0077] When the vehicle's power mode signal is Syspowermod=CRANK or Syspowermod=ON, the vehicle's host screen is powered. If the host screen is judged to be in the on state through the remote signal and the brake signal, the host screen will be lit; if the host screen is judged to be in the off state through the remote signal and the brake signal, the host screen will not be lit.

[0078] It is understandable that the host can continue to receive the vehicle's power mode signal, but since it takes about 200 milliseconds for the power mode signal to change from Syspowermod=OFF to Syspowermod=CRANK during the process of the vehicle starting in response to the remote signal and / or the brake signal, the remote signal and the brake signal are received earlier than the ignition signal in the power mode signal.

[0079] S210: The host determines whether the remote signal is a remote signal including a start command. If so, step S211 is executed; if not, step S213 is executed.

[0080] Specifically, if the remote signal is a remote signal including a start command, it means that the user has sent a remote start request through, for example, the software of a mobile terminal or a car key, and the user may be far away from the vehicle or not driving the vehicle temporarily, and may need to not light up the host screen.

[0081] S211: The host determines whether a braking signal exists. If so, the host executes step S214; if not, the host executes step S212.

[0082] Specifically, when the remote signal is a remote signal that includes a start command, it can be further determined whether there is a braking signal. If there is no braking signal, it means that the user may be far away from the vehicle or is not driving the vehicle temporarily, and it can be considered that there is a need not to light up the host screen; if there is a braking signal, it means that the user may be in the car, and there may be a need to light up the host screen.

[0083] The embodiment of the present invention does not limit the execution order of step S210 and step S211. After executing the judgment process described in step S211, if the judgment result is no, the judgment process described in step S210 may be executed again. If the judgment result of step S210 is yes, step S212 is continued to be executed. If the judgment result of step S210 is no, step S201 is repeated. The judgment processes described in steps S210 and S211 may also be executed simultaneously. When the judgment result of step S210 is yes and the judgment result of step S211 is no, step S212 is executed. When the judgment result of step S211 is yes, step S214 is executed. When the judgment results of steps S210 and S211 are both no, step S201 is repeated.

[0084] S212: The host controls the host screen of the vehicle to remain in an off state.

[0085] S213: The host determines whether a braking signal exists. If so, the host executes step S214; if not, the host executes step S212.

[0086] Specifically, the host can continue to receive brake signals after controlling the host screen to remain in the off state. If a brake signal is received, it means that the brake pedal is under pressure and may be stepped on by the user, that is, the user may return to the car after remotely starting the vehicle and may need to use the host screen.

[0087] S214: The host controls the host screen of the vehicle to be turned on.

[0088] 3 , which is a schematic diagram of a control device for a vehicle host screen according to an embodiment of the present invention. The device includes a detection module 301 applied to the host and a control module 302 applied to the host.

[0089] The detection module 301 is used to receive a remote signal and a brake signal; the brake signal is a signal generated when the brake pedal is pressed; the remote signal is received earlier than the ignition signal is generated.

[0090] The control module 302 is used to control the vehicle's host screen to remain in an off state when a remote signal containing a start command is received and no brake signal is received; and to control the vehicle's host screen to an on state when a remote signal without a command and a brake signal are received.

[0091] Therefore, in the embodiment of the present invention, by utilizing the earlier existing braking signal and the remote signal sent by the wireless control module, it is possible to quickly determine whether the vehicle's host screen needs to be kept in a closed state, and perform corresponding control, thereby reducing the occurrence of host screen flickering during remote startup in scenarios where the vehicle's host screen needs to be kept in a closed state, reducing the possible damage to the vehicle's electronic equipment in this situation, and reducing the startup time of the host screen in scenarios where the vehicle's host screen needs to be controlled to an on state, thereby improving the user experience.

[0092] Optionally, when the host receives a remote signal without a command and a brake signal, the control module 302 applied to the host is specifically configured to:

[0093] Outputs a screen-on signal to the host screen to control the host screen to the on state.

[0094] Optionally, the control module 302 applied to the host is further configured to:

[0095] After the host screen of the vehicle is controlled to maintain the off state, if the first receiving module receives a braking signal, the host screen of the vehicle is controlled to be turned on.

[0096] Optionally, the control device for the vehicle host screen provided by an embodiment of the present invention further includes: a sending module applied to the central electronic module, for sending an ignition signal to the host in response to a received brake signal or a remote signal containing a start command.

[0097] Optionally, the control device of the vehicle host screen provided by an embodiment of the present invention also includes: an acquisition module applied to the central electronic module, used to obtain the distance between the vehicle key and the vehicle; when the central electronic module receives a braking signal, a sending module applied to the central electronic module is specifically used to: in response to the received braking signal, send an ignition signal to the host when the distance between the vehicle key and the vehicle is less than a preset distance.

[0098] Optionally, the acquisition module applied to the central electronic module is specifically used to: receive a wireless signal sent by a vehicle key; and determine the distance between the vehicle key and the vehicle based on the wireless signal.

[0099] In addition, the present invention also provides a vehicle, which applies the above-mentioned control method for the vehicle host screen.

[0100] It should be noted that the various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device and vehicle embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiments. The device and vehicle embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and the components indicated as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. A person of ordinary skill in the art can understand and implement it without paying any creative effort.

[0101] The above is merely one specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A method for controlling a vehicle host screen, characterized in that: The method comprises: The host detects the reception of the remote signal and the brake signal; the brake signal is a signal generated when the brake pedal is pressed; the remote signal is received earlier than the ignition signal is generated; If the host receives a remote signal including a start command and does not receive the brake signal, the host screen of the vehicle is controlled to remain in the off state; if the host receives a remote signal without a command and the brake signal, the host screen of the vehicle is controlled to be in the on state.

2. The method according to claim 1, characterized in that If the host receives the remote signal without command and the brake signal, the host screen of the vehicle is controlled to be turned on, including: If the host receives a remote signal without a command and the brake signal, a screen-on signal is output to the host screen to control the host screen to an on state.

3. The method according to claim 1, characterized in that If the host receives the remote signal including the start command and does not receive the brake signal, then after controlling the host screen of the vehicle to remain in the off state, the method further includes: If the host receives the braking signal, the host screen of the vehicle is controlled to be turned on.

4. The method according to claim 1, characterized in that: The method further comprises: The central electronic module sends an ignition signal to the host in response to the received brake signal or the remote signal containing the start command; the ignition signal is used to light up the host screen in the turned-on state.

5. The method according to claim 4, characterized in that When the central electronic module receives a brake signal, before sending an ignition signal to the host, the method further includes: The central electronic module obtains the distance between the key of the vehicle and the vehicle; The central electronic module sends an ignition signal to the host in response to the received brake signal or the remote signal containing the start command, including: In response to the received brake signal, the central electronic module sends an ignition signal to the host when the distance between the vehicle key and the vehicle is less than a preset distance.

6. The method according to claim 5, characterized in that The central electronic module obtains the distance between the key of the vehicle and the vehicle, including: The central electronic module receives a wireless signal sent by the vehicle key; The central electronic module determines the distance between the key of the vehicle and the vehicle based on the wireless signal.

7. A control device for a vehicle host screen, characterized in that: The device comprises: a detection module applied to the host and a control module applied to the host; The detection module is used to detect the reception of the remote signal and the brake signal; the brake signal is a signal generated when the brake pedal is pressed; the remote signal is received earlier than the ignition signal is generated; The control module is used to control the host screen of the vehicle to remain in a closed state when a remote signal containing a start command is received and the brake signal is not received; and to control the host screen of the vehicle to an open state when a remote signal without a command and the brake signal are received.

8. The device according to claim 7, characterized in that In case of receiving the remote signal without command and the brake signal, the control module is specifically configured to: Output a screen on signal to the host screen to control the host screen to be in an on state.

9. The device according to claim 7, characterized in that The control module is also used for: After controlling the host screen of the vehicle to maintain the closed state, if the first receiving module receives the braking signal, the host screen of the vehicle is controlled to be turned on.

10. A vehicle, characterized in that: The vehicle applies the method for controlling the vehicle host screen according to any one of claims 1-6.

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