Vehicle control method, system and device, electronic equipment and computer storage medium

Abstract

The embodiment of the invention discloses a vehicle control method, system and device, electronic equipment and a computer storage medium, and the method comprises the steps: obtaining the power supply information of a vehicle, determining a low-voltage power supply state according to the voltage and / or voltage conversion state of a storage battery in the power supply information, and responding to the abnormality of the low-voltage power supply state. And determining an abnormal sign corresponding to the current abnormal condition according to the power battery state of the vehicle and the power supply information, and displaying corresponding reminding content according to the abnormal sign. Therefore, according to the embodiment, different abnormal conditions are determined by combining the voltage of the storage battery, the voltage conversion state and the state of the power battery, the coverage range of low-voltage power supply abnormal condition reminding can be expanded, corresponding reminding content is displayed based on different abnormal reminding, a user can be guided to deal with the abnormal conditions of the vehicle in time, and the user experience is improved. And the low-voltage abnormal condition solving efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a vehicle control method, system, device, electronic equipment and computer storage medium. Background Art

[0002] Low-voltage power supply for automobiles is extremely important for automobile safety. Abnormal low-voltage power supply can cause the low-voltage system controllers to not work properly, especially those involving power steering and other systems, resulting in poor steering performance or failure, insufficient braking or no main force, etc. If the user is not reminded in time when the low-voltage power supply is abnormal, the user cannot take corresponding actions in time to deal with the low-voltage power supply abnormality, which may cause greater safety hazards.

[0003] In the prior art, although some vehicles will issue reminders for low-voltage power supply anomalies, the reminder coverage lacks full-scenario considerations, covers fewer low-voltage power supply anomalies, or only has a reminder function, but is unable to provide targeted operational guidance or control based on the specific low-voltage power supply anomalies, so that low-voltage power supply anomalies still cannot be handled in a timely manner. Summary of the invention

[0004] In view of this, the purpose of the embodiments of the present invention is to provide a vehicle control method, system, device, electronic device and computer storage medium to expand the coverage of low-voltage power supply abnormality reminders and improve the efficiency of solving low-voltage abnormality situations.

[0005] In a first aspect, an embodiment of the present invention is intended to provide a vehicle control method, the method comprising:

[0006] Acquiring power supply information of the vehicle, the power supply information including battery voltage and voltage conversion status;

[0007] Determining a low voltage power supply state according to the battery voltage and / or voltage conversion state;

[0008] In response to an abnormality in the low-voltage power supply state, determining an abnormality flag corresponding to the current abnormal situation according to the power battery state of the vehicle and the power supply information;

[0009] The corresponding reminder content is displayed according to the abnormal sign.

[0010] Further, determining the low voltage power supply state according to the battery voltage and / or voltage conversion state includes:

[0011] In response to the battery voltage being lower than a preset voltage threshold and / or the voltage conversion state being abnormal, determining that the low voltage power supply state is abnormal;

[0012] In response to the battery voltage being greater than or equal to a preset voltage threshold and the voltage conversion state being normal, it is determined that the low voltage power supply state is normal.

[0013] Further, the determining of an abnormal flag corresponding to the current abnormal situation according to the power battery state of the vehicle and the power supply information includes:

[0014] Determining the battery voltage, the power battery state, and the voltage conversion state;

[0015] Determine the abnormal flag corresponding to the current abnormal situation based on the judgment result.

[0016] Further, the determining of the abnormal flag corresponding to the current abnormal situation according to the judgment result includes:

[0017] In response to the battery voltage satisfying a first preset condition, determining an abnormality flag corresponding to a current abnormal situation according to a gear state of the vehicle, and controlling the vehicle to perform a corresponding operation according to the abnormality flag;

[0018] In response to the battery voltage not satisfying a first preset condition, an abnormality flag corresponding to a current abnormal situation is determined according to the power battery state.

[0019] Furthermore, the first preset condition is that the battery voltage is less than a voltage threshold and lasts for a first time period.

[0020] Further, determining an abnormality flag corresponding to a current abnormal situation according to the gear state of the vehicle and controlling the vehicle to perform a corresponding operation according to the abnormality flag includes:

[0021] In response to the vehicle being in the ON gear position, determining that the abnormality flag corresponding to the current abnormal situation is a first flag, and controlling the vehicle to reduce a low-voltage load;

[0022] In response to the vehicle being in the ACC gear or the P gear, determining that the abnormal flag corresponding to the current abnormal situation is the second flag, and controlling the vehicle to reduce the low-voltage load and switch to the OFF gear.

[0023] Furthermore, the power supply information also includes battery power, and the abnormal flag corresponding to the current abnormal situation determined according to the power battery state includes:

[0024] In response to the power battery state satisfying a second preset condition, determining an abnormality flag corresponding to a current abnormal situation according to the battery power;

[0025] In response to the power battery state not satisfying a second preset condition, an abnormal flag corresponding to a current abnormal situation is determined according to the voltage conversion state.

[0026] Furthermore, the second preset condition is that the power battery state is abnormal and the duration reaches a second time length.

[0027] Further, the determining of the abnormal flag corresponding to the current abnormal situation according to the battery power includes:

[0028] In response to the battery power error not exceeding the error threshold and the battery power being lower than a preset power value, or in response to the battery power error exceeding the error threshold and lasting for a fourth time period, determining that the abnormal flag corresponding to the current abnormal situation is a third flag, and controlling the vehicle to reduce a low-voltage load;

[0029] In response to the error of the battery power not exceeding the error threshold and the battery power not being lower than a preset power value, it is determined that the abnormal flag corresponding to the current abnormal situation is a fourth flag.

[0030] Further, the determining of an abnormal flag corresponding to the current abnormal situation according to the voltage conversion state includes:

[0031] In response to the voltage conversion state satisfying a third preset condition, an abnormal flag corresponding to a current abnormal situation is determined according to the battery power.

[0032] Furthermore, the third preset condition is that the voltage conversion state is abnormal and the duration reaches a third time length.

[0033] Further, the determining of the abnormal flag corresponding to the current abnormal situation according to the battery power includes:

[0034] In response to the battery power error not exceeding the error threshold and the battery power being lower than a preset power value, or in response to the battery power error exceeding the error threshold and lasting for a fourth time period, determining that the abnormal flag corresponding to the current abnormal situation is a fifth flag, and controlling the vehicle to reduce a low-voltage load;

[0035] In response to the error of the battery power not exceeding the error threshold and the battery power not being lower than a preset power value, it is determined that the abnormal flag corresponding to the current abnormal situation is a sixth flag.

[0036] Furthermore, the method further comprises:

[0037] In response to the battery voltage not satisfying a first preset condition, the power battery state not satisfying a second preset condition, and the voltage conversion state not satisfying a third preset condition, determining a high voltage power supply state of the vehicle;

[0038] In response to the high-voltage power supply state returning to normal, the abnormal reminder of the vehicle is released.

[0039] In a second aspect, an embodiment of the present invention is intended to provide a vehicle control system, the system comprising:

[0040] A battery sensor configured to detect battery information, wherein the battery information includes battery voltage and battery power;

[0041] a voltage conversion controller configured to convert the high voltage direct current into a low voltage direct current;

[0042] A power battery controller is configured to detect a power battery status;

[0043] A vehicle domain controller, connected to the battery sensor, the voltage conversion controller and the power battery controller, configured to obtain power supply information of the vehicle, determine a low-voltage power supply state according to the battery voltage and / or voltage conversion state in the power supply information, and in response to an abnormality in the low-voltage power supply state, determine an abnormality flag corresponding to the current abnormal situation according to the power battery state of the vehicle and the power supply information;

[0044] The display is connected to the vehicle domain controller and is configured to display the reminder content corresponding to the abnormal sign.

[0045] In a third aspect, an embodiment of the present invention is intended to provide a vehicle control device, the device comprising:

[0046] An information acquisition unit, used to acquire power supply information of the vehicle, the power supply information including battery voltage and voltage conversion state;

[0047] a state determination unit, used to determine a low voltage power supply state according to the battery voltage and / or voltage conversion state;

[0048] a flag determination unit, configured to determine, in response to an abnormality in the low-voltage power supply state, an abnormal flag corresponding to a current abnormal situation according to a power battery state of the vehicle and the power supply information;

[0049] The display unit is used to display corresponding reminder content according to the abnormal sign.

[0050] In a fourth aspect, an embodiment of the present invention aims to provide a computer program product, wherein the computer program product comprises a computer program / instructions, and the computer program / instructions implement any of the methods described above when executed by a processor.

[0051] In a fifth aspect, an embodiment of the present invention aims to provide an electronic device, comprising a memory and a processor, wherein the memory is used to store one or more computer program instructions, wherein the one or more computer program instructions are executed by the processor to implement a method as described in any one of the above items.

[0052] In a sixth aspect, an embodiment of the present invention aims to provide a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method steps as described in any one of the above items are implemented.

[0053] The technical solution of the embodiment of the present invention obtains the power supply information of the vehicle, determines the low-voltage power supply state according to the battery voltage and / or voltage conversion state in the power supply information, and can quickly determine the low-voltage power supply state from two different dimensions: the low-voltage power supply source and the output voltage; when an abnormality occurs in the low-voltage power supply state, the abnormal sign corresponding to the current situation is determined according to the power battery state and power supply information of the vehicle, so that different abnormal situations can be determined in combination with the battery voltage, voltage conversion state and power battery state, thereby expanding the coverage of low-voltage power supply abnormal situation reminders; and, by displaying different reminder contents based on different abnormal signs, it can guide users to deal with vehicle abnormal situations in a timely manner according to the reminder contents, thereby improving the efficiency of resolving low-voltage abnormal situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] The above and other objects, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0055] Figure 1 is a schematic diagram of a vehicle control system according to an embodiment of the present invention;

[0056] Figure 2 is a flow chart of a vehicle control method according to an embodiment of the present invention;

[0057] Figure 3 is a flow chart of determining an abnormal flag according to an embodiment of the present invention;

[0058] Figure 4 is a flow chart of determining an abnormal flag according to a judgment result according to an embodiment of the present invention;

[0059] Figure 5 is a schematic diagram of the corresponding reminder content of the abnormal flag in an embodiment of the present invention;

[0060] Figure 6 is another flow chart of a vehicle control method according to an embodiment of the present invention;

[0061] Figure 7 is a schematic diagram of a vehicle control device according to an embodiment of the present invention;

[0062] Figure 8 is a schematic diagram of an electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0063] The present application is described below based on embodiments, but the present application is not limited to these embodiments. In the detailed description of the present application below, some specific details are described in detail. It is possible for those skilled in the art to fully understand the present application without the description of these details. In order to avoid confusing the essence of the present application, known methods, processes, flows, components and circuits are not described in detail.

[0064] In addition, persons of ordinary skill in the art will appreciate that the drawings provided herein are for illustration purposes and are not necessarily drawn to scale.

[0065] Unless the context clearly requires otherwise, the words "include", "comprising" and similar words throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, the meaning is "including but not limited to".

[0066] In the description of this application, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0067] The solutions described in this specification and in the examples, if they involve the processing of personal information, will be processed on the premise of having a legal basis (such as obtaining the consent of the subject of personal information, or being necessary for the performance of a contract, etc.), and will only be processed within the scope of regulations or agreements. If a user refuses to process personal information other than the necessary information for basic functions, it will not affect the user's use of basic functions.

[0068] The names and uses of the terms used in this application are explained as follows.

[0069] IBS, intelligent battery sensor, is responsible for detecting battery information and waking up the main node when the battery is low.

[0070] DCDC, a DC conversion controller, is used to convert high voltage current into low voltage DC power (12V nominal).

[0071] BMS, battery management system controller, is used for power battery management.

[0072] VDP, the vehicle domain controller, is responsible for intelligent charging and wake-up logic.

[0073] CDP, cockpit domain controller, is responsible for display and data upload.

[0074] AC, air conditioning controller, is responsible for climate control comfort load control such as blowers.

[0075] BCM, body control unit, is responsible for driving electrical appliances in the body area such as lights.

[0076] DSC, the driver's seat controller, is responsible for driving electrical appliances such as seat heating / ventilation.

[0077] CSD, center console display, is responsible for displaying information during vehicle use.

[0078] The remote end is responsible for data collection and remote comprehensive calculation and judgment, and ultimately reminds the user.

[0079] The existing technology lacks full-scenario consideration in terms of low-voltage power supply abnormality reminders, and does not provide intelligent reminders and processing, resulting in fewer low-voltage power supply abnormality situations covered by the reminders, and it is impossible to provide targeted operation guidance or control based on specific low-voltage power supply abnormality situations, resulting in low efficiency in handling low-voltage power supply abnormalities. In view of this, an embodiment of the present invention aims to provide a vehicle control method to expand the coverage of low-voltage power supply abnormality reminders and improve the efficiency of solving low-voltage abnormality situations.

[0080] Figure 1 FIG. 1 is a schematic diagram of a vehicle control system according to an embodiment of the present invention. Figure 1 As shown, the vehicle control system in this embodiment includes a battery sensor 1 (IBS), a voltage conversion controller 2 (DCDC), a power battery controller 3 (BMS), a vehicle domain controller 4 (VDP) and a display 5 (CSD). Among them, the battery sensor 1 is configured to detect battery information, and the battery information includes battery voltage and battery power. The voltage conversion controller 2 is configured to convert high-voltage direct current into low-voltage direct current. The power battery controller 3 is configured to detect the power battery status. The vehicle domain controller 4 is connected to the battery sensor 1, the voltage conversion controller 2 and the power battery controller 3, and is configured to obtain the power supply information of the vehicle, determine the low-voltage power supply state according to the battery voltage and / or voltage conversion state in the power supply information, and in response to an abnormality in the low-voltage power supply state, determine the abnormal sign corresponding to the current abnormal situation according to the power battery state and power supply information of the vehicle. The display 5 is connected to the vehicle domain controller and is configured to display the abnormal sign and the corresponding reminder content.

[0081] When in use, the battery information of the low-voltage power supply part is detected through the battery sensor 1, including the battery charge information, current information and voltage information. The voltage conversion controller 2 detects information related to the high-low voltage conversion state in the vehicle, including the voltage conversion state. The power battery controller 3 detects the power battery information of the high-voltage power supply part of the vehicle, including the power battery charge information that can characterize the power state of the vehicle's high-voltage system. The vehicle domain controller 4 judges the current use of the vehicle based on the received battery information, the voltage conversion state and the power battery charge information, and gives the setting under different low-voltage power supply abnormal situations through the abnormal flag, so that the display 5 performs human-computer interaction according to the received setting signal, and displays the reminder content corresponding to different abnormal flags.

[0082] Optionally, the vehicle control system in this embodiment also includes a cockpit domain controller 6 (CDP), which is connected to the vehicle domain controller 4 and the display 5, and can perform overall human-computer interaction reminder settings and self-screen off control. Therefore, in this embodiment, the vehicle domain controller 4 is the main control part, and the cockpit domain controller 6 receives the abnormal signs under different low-voltage power supply abnormal situations sent by the vehicle domain controller 4, and sends the reminder content corresponding to the abnormal sign to the display 5, so that the reminder content under different abnormal situations can be displayed to the user in time, guiding the user to deal with the vehicle abnormal situation in time according to the reminder content, and improving the efficiency of solving low-voltage abnormal situations and the user's vehicle use experience. At the same time, in an abnormal scenario where power off is required, the cockpit domain controller 6 will send a low-voltage power off request to the vehicle domain controller 4.

[0083] Furthermore, the vehicle control system in this embodiment also includes low-voltage power supply loads such as an air conditioning controller 7 (AC), a body controller 8 (BCM), and a driver's seat controller 9 (DSC) respectively connected to the vehicle domain controller 4. When the vehicle has a low-voltage power supply abnormality, the vehicle domain controller 4 will simultaneously perform comfort load energy limit control, determine the load energy limit level according to different abnormal situations, and send energy limit operation instructions to the load according to the load energy limit level, for example, send "air conditioning limit 2 gear" to AC, send "limit rear defrost rearview mirror heating" to BCM, send "limit seat ventilation, heating" to DSC, etc., to control the relevant loads to reduce low-voltage energy consumption, thereby alleviating the problem of low-voltage power supply abnormality. At the same time, since the use status of loads such as air conditioners and seats is usually displayed during vehicle use, in this embodiment, after the load is energy-limited, the vehicle domain controller 4 will also send a "turn off load display" instruction to the display 5 through the cockpit domain controller 6 to stop displaying the relevant loads, which is conducive to further reducing the low-voltage power supply energy consumption.

[0084] Optionally, the vehicle energy control system in this embodiment also includes a remote terminal 10, and uploads abnormal information such as battery information when low-voltage power supply is abnormal, as well as abnormal status information and load energy limitation status information corresponding to different abnormal situations to the remote terminal 10 through the cockpit domain controller 6, so that the remote terminal can timely understand the usage status of the vehicle and provide reasonable guidance for the use of the vehicle.

[0085] The technical solution of this embodiment determines different abnormal situations by combining different functional modules in the vehicle control system with the battery voltage, voltage conversion state and power battery state, and can expand the coverage of low-voltage power supply abnormal situation reminders. And by displaying corresponding reminder content based on different abnormal situations, it can guide users to deal with vehicle abnormal situations in a timely manner and improve the efficiency of solving low-voltage abnormal situations.

[0086] Figure 2 FIG. 1 is a flow chart of a vehicle control method according to an embodiment of the present invention. Figure 2 As shown, the vehicle control method of this embodiment includes the following steps.

[0087] In step S210, the power supply information of the vehicle is obtained.

[0088] In this embodiment, the power supply information includes the battery voltage and the voltage conversion state. Since the vehicle provides low-voltage power through the battery, the low-voltage power supply can be realized by converting the high voltage output by the power supply into a low voltage. In this embodiment, the battery voltage and the voltage conversion state in the power supply information reflect the low-voltage power supply performance of the vehicle.

[0089] Optionally, since the low-voltage power supply function is usually turned on when the vehicle is in the ACC or ON gear position, the power supply information obtained in this embodiment includes the battery voltage and voltage conversion state when the vehicle is in the ACC or ON gear position. It should be understood that due to different vehicle structures, the vehicle gear position when the low-voltage power supply function is turned on may be different. This embodiment only provides an example of the gear position when obtaining the low-voltage power supply information, and its purpose is only to obtain the power supply information during the low-voltage power supply process.

[0090] In step S220, the low voltage power supply state is determined according to the battery voltage and / or the voltage conversion state.

[0091] In this embodiment, since both the battery voltage and the voltage conversion state can reflect the low-voltage power supply state of the vehicle, when determining the low-voltage power supply state according to the battery voltage and / or the voltage conversion state, in response to the battery voltage being lower than a preset voltage threshold and / or the voltage conversion state being abnormal, the low-voltage power supply state is determined to be abnormal; or, in response to the battery voltage being greater than or equal to the preset voltage threshold and the voltage conversion state being normal, the low-voltage power supply state is determined to be normal. Therefore, in this embodiment, the low-voltage power supply state of the vehicle is determined by comparing the battery voltage with the preset voltage threshold and / or judging the voltage conversion state, so that the determination of the low-voltage power supply state of the vehicle is more convenient, which is conducive to improving the efficiency of subsequent determination of low-voltage abnormal situations and resolution of low-voltage abnormal situations.

[0092] Optionally, in order to improve the efficiency of determining the abnormal low-voltage power supply situation, in this embodiment, it is possible to determine whether the low-voltage power supply state of the vehicle is abnormal by using the battery voltage or the voltage conversion state. Specifically, it is determined that the low-voltage power supply state is abnormal when the battery voltage is lower than a preset voltage threshold or the voltage conversion state is abnormal. Alternatively, in this embodiment, the low-voltage power supply state of the vehicle can also be determined by combining the battery voltage and the voltage conversion state, and it is determined that the low-voltage power supply state is abnormal when the battery voltage is lower than the preset voltage threshold and the voltage conversion state is abnormal, so as to make a more accurate judgment when the low-voltage power supply abnormality occurs in the vehicle.

[0093] In step S230, in response to an abnormality in the low voltage power supply state, an abnormality flag corresponding to the current abnormal situation is determined according to the power battery state and power supply information of the vehicle.

[0094] When an abnormality occurs in the low-voltage power supply state, the abnormal situations corresponding to different power battery states and power supply information may also be different. In this embodiment, the abnormal sign corresponding to the current abnormal situation is determined according to the power battery state and power supply information of the vehicle, which can make the coverage of abnormal situations more comprehensive. At the same time, various abnormal situations are distinguished and characterized by different abnormal signs, so as to distinguish and handle different abnormal situations and improve the efficiency of abnormal situation handling.

[0095] Optionally, since different low-voltage power supply abnormality situations correspond to different urgency and operational requirements, in this embodiment, after a low-voltage power supply abnormality occurs, different low-voltage power supply influencing factors will be judged based on the degree of impact, and then the abnormal sign that is more in line with the current abnormal situation will be determined.

[0096] Figure 3 FIG. 1 is a flow chart of determining an abnormal flag according to an embodiment of the present invention. Figure 3 As shown, in this embodiment, the abnormal flag corresponding to the current abnormal situation is determined through the following steps.

[0097] In step S310, the battery voltage, power battery status and voltage conversion status are determined.

[0098] In this embodiment, the battery is the direct power source of the low-voltage power supply, and the power battery is the fundamental source of the low-voltage power supply. Voltage conversion of the power battery is an effective way to ensure low-voltage power supply. Therefore, in this embodiment, the priority order of battery voltage-power battery status-voltage conversion status is pre-set from high to low, and the abnormal flag corresponding to the current abnormal situation is determined by judging the battery voltage, power battery status and voltage conversion status in turn.

[0099] It should be understood that in this embodiment, the battery voltage, the power battery state and the voltage conversion state may also be determined based on other sequences, and this is not limited here.

[0100] In step S320, an abnormal flag corresponding to the current abnormal situation is determined according to the judgment result.

[0101] Figure 4 FIG. 1 is a flow chart of determining an abnormality flag according to a judgment result according to an embodiment of the present invention. Figure 4 As shown, in this embodiment, the following steps are included when determining the abnormal flag according to the judgment result.

[0102] In step S401, it is determined whether the battery voltage meets a first preset condition.

[0103] In this embodiment, the first preset condition is that the battery voltage is less than the voltage threshold and the duration reaches the first duration. When the battery voltage meets the first preset condition, the abnormal flag corresponding to the current abnormal situation is determined according to the gear state of the vehicle, and the vehicle is controlled to perform the corresponding operation according to the abnormal flag, and step S402 is continued. When the battery voltage does not meet the first preset condition, the abnormal flag corresponding to the current abnormal situation is determined according to the power battery state, and step S403 is executed.

[0104] In step S402, it is determined whether the vehicle is in the ON gear position.

[0105] In this embodiment, when the vehicle is in the ON gear, step S402-1 is executed; when the vehicle is not in the ON gear, that is, when the vehicle is in the ACC gear or the P gear, step S402-2 is executed.

[0106] In step S402-1, in response to the vehicle being in the ON gear, it is determined that the abnormal flag corresponding to the current abnormal situation is the first flag, and the vehicle is controlled to reduce the low-voltage load. The low-voltage power supply problem is alleviated by reducing the number of low-voltage power supply loads (such as turning off the air conditioner, turning off the rearview mirror heating function) or reducing the energy consumption of the low-voltage load (such as lowering the air conditioner gear).

[0107] In step S402-2, in response to the vehicle being in the ACC gear or the P gear, it is determined that the abnormal flag corresponding to the current abnormal situation is the second flag, and the vehicle is controlled to reduce the low-voltage load and switch to the OFF gear.

[0108] In step S403, it is determined whether the power battery state meets a second preset condition.

[0109] In this embodiment, the second preset condition is that the power battery state is abnormal and the duration reaches a second duration. Optionally, in this embodiment, the power battery state (such as power battery power information, etc.) can be detected by the battery management system controller, and when it is detected that the power battery is drained, faulty, or other factors that cause the inability to supply power at a low voltage normally, the power battery state is determined to be abnormal. Further, when the power battery state is abnormal and the duration of the abnormal state reaches the second duration, it is determined that the power battery state meets the second preset condition, otherwise it is determined that the power battery state does not meet the second preset condition. When it is determined that the power battery state meets the second preset condition, the abnormal flag corresponding to the current abnormal situation is determined according to the battery power, and step S404 is executed; when the power battery state does not meet the second preset condition, the abnormal flag corresponding to the current abnormal situation is determined according to the voltage conversion state, and step S405 is executed.

[0110] In step S404, an abnormal flag corresponding to the current abnormal situation is determined according to the battery power.

[0111] In this embodiment, the battery power can be detected by a battery sensor. Since the battery power often generates measurement errors due to differences in battery materials, battery power SOC calculation methods, etc. during the measurement process, when the power battery state meets the second preset condition and the abnormal flag corresponding to the current abnormal situation is determined according to the battery power, the abnormal flag is first determined according to the battery power error, and then the abnormal flag is determined according to the judgment result of the battery power, which specifically includes steps S404-1 and S404-2.

[0112] In step S404-1, in response to the battery charge error not exceeding the error threshold and the battery charge being lower than the preset charge value, or in response to the battery charge error exceeding the error threshold and lasting for a fourth time period, it is determined that the abnormal flag corresponding to the current abnormal situation is the third flag, and the vehicle is controlled to reduce the low-voltage load.

[0113] In step S404-2, in response to the battery power error not exceeding the error threshold and the battery power not being lower than the preset power value, it is determined that the abnormal flag corresponding to the current abnormal situation is the fourth flag.

[0114] In step S405, it is determined whether the voltage conversion state satisfies a third preset condition.

[0115] In this embodiment, the third preset condition is that the voltage conversion state is abnormal and the duration reaches a third duration. Optionally, the voltage conversion state in this embodiment is determined by the voltage conversion working state information output by the DC conversion controller, and the voltage conversion state is determined to be abnormal when the voltage conversion working state information is abnormal (such as the output voltage changes, the voltage conversion time is extended, etc.). Further, when the voltage conversion state is abnormal and the duration of the abnormal state reaches the third duration, it is determined that the voltage conversion state meets the third preset condition, otherwise it is determined that the voltage conversion state does not meet the third preset condition. When it is determined that the voltage conversion state meets the third preset condition, step S406 is executed. When it is determined that the voltage conversion state does not meet the third preset condition, step S407 is executed.

[0116] In step S406, an abnormal flag corresponding to the current abnormal situation is determined according to the battery power.

[0117] In this embodiment, when the voltage conversion state satisfies the third preset condition and the abnormal flag corresponding to the current abnormal situation is determined according to the battery power, a judgment is first made according to the battery power error, and then the abnormal flag is determined according to the judgment result of the battery power, specifically including steps S406-1 and S406-2.

[0118] In step S406-1, in response to the battery charge error not exceeding the error threshold and the battery charge being lower than the preset charge value, or in response to the battery charge error exceeding the error threshold and lasting for a fourth time period, the abnormal flag corresponding to the current abnormal situation is determined to be the fifth flag, and the vehicle is controlled to reduce the low-voltage load.

[0119] Step S406-2, in response to the battery power error not exceeding the error threshold and the battery power not being lower than the preset power value, determining that the abnormal flag corresponding to the current abnormal situation is the sixth flag.

[0120] Optionally, after an exception occurs and an exception reminder corresponding to the exception sign is sent to the user, the vehicle control method of this embodiment also includes the following steps, so that the user can understand the exception resolution status in a timely manner, which is conducive to further improving the user experience.

[0121] In step S407, in response to the battery voltage not satisfying the first preset condition, the power battery state not satisfying the second preset condition, and the voltage conversion state not satisfying the third preset condition, the high voltage power supply state of the vehicle is determined.

[0122] In this embodiment, while determining the high-voltage power supply status of the vehicle, it is possible to determine whether the high-voltage power supply status has returned to normal, and execute step S408 when the high-voltage power supply status has returned to normal; when the high-voltage power supply status has not returned to normal, that is, it is in an abnormal state, return to step S401.

[0123] In step S408, in response to the high voltage power supply state returning to normal, the abnormal reminder of the vehicle is released.

[0124] In step S240, corresponding reminder content is displayed according to the abnormal flag.

[0125] In this embodiment, after determining the abnormal flag corresponding to the current abnormal situation, the corresponding reminder content is displayed according to the abnormal flag. Optionally, the reminder content in this embodiment includes display information and operation guidance. Among them, the display information is status prompt information, which is used to prompt the user of the current vehicle status. The operation guidance is operation prompt information, which is used to prompt the user to adjust the vehicle function based on the current vehicle status to speed up the processing process of the low-voltage power supply abnormality, or to facilitate the user to view the vehicle's operation information when the vehicle has an automatic driving function, so as to further enhance the user's vehicle use experience.

[0126] Furthermore, in this embodiment, different reminder contents will be displayed according to the severity corresponding to different abnormal situations. When the severity of the abnormal situation is low, the reminder content may only include display information; when the severity of the abnormal situation is high, the reminder content includes both display information and operation guidance, and the higher the severity, the wider the scope of operation impact in the corresponding operation guidance. Thus, different levels of reminder content and operation guidance are used to provide users with different degrees of abnormal reminders. While expanding the coverage of low-voltage power supply abnormal situation reminders, it can guide users to deal with vehicle abnormal situations in a timely and rapid manner based on the reminder content, thereby improving the efficiency of solving low-voltage abnormal situations.

[0127] Figure 5 Schematic diagram of the abnormal sign corresponding to the reminder content in the embodiment of the present invention. Figure 5 As shown, when the abnormal sign is the first sign (that is, the battery voltage is less than the voltage threshold and the duration reaches the first time length, and the vehicle is in the ON gear), the corresponding reminder content A includes display information and operation guidance. The corresponding content of the display information is - the system has an abnormality, please stop the car immediately and contact customer service for help. The corresponding content of the operation guidance is - after the reminder, the low-voltage comfort load of the whole vehicle is closed at the same time.

[0128] When the abnormal sign is the second sign (that is, the battery voltage is less than the voltage threshold and the duration reaches the first time, and the vehicle is in ACC or P gear), the corresponding reminder content B includes display information and operation guidance. The corresponding content of the display information is - the battery is almost exhausted, the vehicle will automatically shut down at T5, please park safely; if rescue is required, please turn on the "tow mode" when starting to tow the vehicle. The corresponding content of the operation guidance is - CDP displays a 60s countdown and executes the power off command, that is, when the remaining battery power is extremely low, the low-voltage power mode is switched to the OFF state according to the working conditions.

[0129] When the abnormal sign is the third sign (that is, the power battery status is abnormal and the duration reaches the second duration, and the battery power error does not exceed the error threshold and the battery power is lower than the preset power value or the battery power error exceeds the error threshold and the duration reaches the fourth duration), the corresponding reminder content C includes display information and operation guidance. The corresponding content of the display information is—the battery power is almost exhausted, and the functions such as air conditioning and seat ventilation will be limited. Please park safely and enter the "Safety" setting to turn off the power to save energy. The corresponding content of the operation guidance is—VDP execution limited energy level-seat ventilation and heating are turned off, and rear defrosting and rearview mirror heating are turned off.

[0130] When the abnormal sign is the fourth sign (that is, the power battery status is abnormal and the duration reaches the second time period, and the error of the battery power does not exceed the error threshold and the battery power is not lower than the preset power value), the corresponding reminder content D only includes display information, and the corresponding content of the display information is - the battery power is almost exhausted, and continued use may cause the vehicle computer to automatically shut down. Please park safely and enter the "Safety" setting to turn off the power to save energy.

[0131] When the abnormal sign is the fifth sign (that is, the voltage conversion state is abnormal and the duration reaches the third duration, and the battery power error does not exceed the error threshold and the battery power is lower than the preset power value or the battery power error exceeds the error threshold and the duration reaches the fourth duration), the corresponding reminder content E includes display information and operation guidance. The corresponding content of the display information is—the system has an abnormality, and the air conditioning, seat ventilation and other functions will be limited. Please park safely and contact customer service for help. The corresponding content of the operation guidance is—VDP execution limited energy level-seat ventilation and heating are turned off, and rear defrosting and rearview mirror heating are turned off.

[0132] When the abnormal mark is the sixth mark (that is, the voltage conversion state is abnormal and lasts for the third time, and the error of the battery power does not exceed the error threshold and the battery power is not lower than the preset power value), the corresponding reminder content F only includes the display information, and the corresponding content of the display information is - the system has an abnormality, please stop the car immediately and safely, and contact customer service for help.

[0133] Therefore, in this embodiment, different low-voltage power supply abnormality situations are differentiated and displayed through different types of reminder content and different degrees of display information and operation guidance in the reminder content, which can expand the coverage of low-voltage power supply abnormality reminders while facilitating users to quickly know the vehicle status, and guide users to deal with vehicle abnormalities in a timely and rapid manner based on the reminder content, thereby improving the efficiency of resolving low-voltage abnormalities, ensuring the safety of users and vehicles in all scenarios of low-voltage power supply abnormalities in a more intelligent way, and preventing the battery from further depleting and causing battery damage.

[0134] It should be noted that the specific values ​​of the relevant parameters involved in this embodiment, including thresholds, durations, etc., can be determined based on experience, and can also be adjusted according to the different performance of vehicles and the differences in specific usage scenarios, and this is not limited here.

[0135] The technical solution of the embodiment of the present invention obtains the power supply information of the vehicle, determines the low-voltage power supply state according to the battery voltage and voltage conversion state in the power supply information, and can quickly determine the low-voltage power supply state from two different dimensions: the low-voltage power supply source and the output voltage; when an abnormality occurs in the low-voltage power supply state, the abnormal sign corresponding to the current situation is determined according to the power battery state and power supply information of the vehicle, so that different abnormal situations can be determined in combination with the battery voltage, vehicle gear, voltage conversion state, battery charge and power battery state, thereby expanding the coverage of low-voltage power supply abnormal situation reminders; and, by displaying different reminder contents based on different abnormal signs, it is possible to intelligently provide different degrees of reminders and corresponding operation guidance according to different working conditions and different severities, so as to promptly handle vehicle abnormal situations according to the reminder contents and improve the efficiency of solving low-voltage abnormal situations.

[0136] Figure 6 FIG. 4 is another flow chart of the vehicle control method according to an embodiment of the present invention. Figure 6 As shown, the vehicle control method for reminding different abnormal situations in this embodiment includes the following steps.

[0137] In step S601, it is determined that an abnormality occurs in the low voltage power supply.

[0138] In this embodiment, when the vehicle is in the ACC or ON gear position and the battery voltage is lower than a preset voltage threshold and / or the voltage conversion state is abnormal, it is determined that the vehicle low-voltage power supply is abnormal.

[0139] In step S602, it is determined whether the duration of the battery voltage being lower than the voltage threshold v1 reaches a first duration T1.

[0140] In this embodiment, when the battery voltage is lower than the voltage threshold v1 and the duration reaches the first time length T1, step S603 is executed; when the battery voltage is lower than the voltage threshold v1 and the duration does not reach the first time length T1, step S604 is executed.

[0141] In step S603, it is determined whether the vehicle is in the ON gear position.

[0142] In this embodiment, when it is determined that the vehicle is in the ON gear, step S6031 is continued to be executed to determine whether the vehicle is in the P gear. When the vehicle is not in the P gear, the abnormal sign is determined to be the first sign, and the reminder content A corresponding to the first sign is displayed; when the vehicle is in the P gear, the abnormal sign is determined to be the second sign, and the reminder content B corresponding to the second sign is displayed. When it is determined that the vehicle is not in the ON gear, that is, the vehicle is in the ACC gear, the abnormal sign is determined to be the second sign, and the reminder content B corresponding to the second sign is displayed.

[0143] In step S604, it is determined whether the power battery state is abnormal and whether the abnormality lasts for a second time period T2.

[0144] In this embodiment, when it is detected that the power battery is drained or fails and cannot provide power, it is determined that the power battery state is abnormal. At the same time, when the power battery state is abnormal and the duration reaches the second time length T2, step S605 is continued; when the power battery state is not abnormal or the duration of the abnormality does not reach the second time length T2, step S606 is continued.

[0145] In step S605, it is determined whether the battery power error is less than or equal to an error threshold.

[0146] In this embodiment, when the error of the battery power SOC is ≤ the error threshold P1, step S6051 is continued to be executed to determine whether the battery power SOC is lower than the preset power value SOC1. When the battery power SOC is < SOC1, the abnormal flag is determined to be the third flag, and the reminder content C corresponding to the third flag is displayed; when the battery power SOC is ≥ SOC1, the abnormal flag is determined to be the fourth flag, and the reminder content D corresponding to the fourth flag is displayed. When the battery power error is > the error threshold P1 and the duration reaches the fourth duration T4, the abnormal flag is determined to be the third flag, and the reminder content C corresponding to the third flag is displayed.

[0147] Optionally, in this embodiment, when the battery power information cannot be received, that is, when the battery power information detection fails, the abnormal flag corresponding to the current abnormal situation is determined to be the third flag, and the reminder content C corresponding to the third flag is displayed, and the vehicle is controlled to reduce the low-voltage load. Alternatively, in this embodiment, when the battery power SOC ≥ SOC1 but the duration does not reach the fourth time length T4, the reminder content corresponding to the previous abnormal flag will continue to be displayed or the reminder content will stop being displayed.

[0148] In step S606, it is determined whether the voltage conversion state is abnormal and whether the abnormality lasts for a third time period T3.

[0149] In this embodiment, when the voltage conversion state is abnormal and the duration reaches the third time length T3, step S607 is continued to be executed; when the voltage conversion state is not abnormal or the duration of the abnormality does not reach the third time length T3, step S608 is continued to be executed.

[0150] In step S607, it is determined whether the battery power error is less than or equal to an error threshold.

[0151] In this embodiment, when the error of the battery power SOC is ≤ the error threshold P1, step S6071 is continued to be executed to determine whether the battery power SOC is lower than the preset power value SOC1. When the battery power SOC is < SOC1, the abnormal flag is determined to be the fifth flag, and the reminder content E corresponding to the fifth flag is displayed; when the battery power SOC is ≥ SOC1, the abnormal flag is determined to be the sixth flag, and the reminder content F corresponding to the sixth flag is displayed. When the battery power error is > the error threshold P1 and the duration is greater than the fourth duration T4, the abnormal flag is determined to be the fifth flag, and the reminder content E corresponding to the fifth flag is displayed.

[0152] Optionally, in this embodiment, when the battery power information cannot be received, that is, when the battery power information detection fails, the abnormal flag corresponding to the current abnormal situation is also determined to be the fifth flag, and the reminder content E corresponding to the fifth flag is displayed. Another option is that in this embodiment, when the battery power SOC ≥ SOC1 but the duration does not reach the fourth time length T4, the reminder content corresponding to the previous abnormal flag will continue to be displayed, or the reminder content will stop being displayed.

[0153] In step S608, it is determined whether the high voltage power supply state returns to normal.

[0154] In this embodiment, when there is no abnormality in the power battery and the high-voltage power supply connection state of the power battery is in the connected state, it is determined that the high-voltage power supply state has returned to normal, and step S609 is continued to be executed; otherwise, the process returns to step S601.

[0155] In step S609, the vehicle gear is switched to the OFF gear, the abnormal flag is cleared, and the warning is lifted.

[0156] In this embodiment, when the original gear position of the vehicle is ACC or ON, the gear position of the vehicle is switched from ACC or ON to OFF; when the original gear position of the vehicle is OFF, the vehicle is kept in OFF. At the same time, the setting signal corresponding to the abnormal flag of the vehicle is cleared to remove the abnormal reminder.

[0157] The technical solution of the embodiment of the present invention obtains the power supply information of the vehicle, determines the low-voltage power supply state according to the battery voltage and voltage conversion state in the power supply information, and can quickly determine the low-voltage power supply state from two different dimensions: the low-voltage power supply source and the output voltage; when an abnormality occurs in the low-voltage power supply state, the abnormal sign corresponding to the current situation is determined according to the power battery state and power supply information of the vehicle, so that different abnormal situations can be determined in combination with the battery voltage, voltage conversion state and power battery state, thereby expanding the coverage of low-voltage power supply abnormal situation reminders; and, by displaying different reminder contents based on different abnormal signs, it can guide users to deal with vehicle abnormal situations in a timely manner according to the reminder contents, thereby improving the efficiency of resolving low-voltage abnormal situations.

[0158] Figure 7 Schematic diagram of a vehicle control device according to an embodiment of the present invention. Figure 7 As shown, the vehicle control device in this embodiment includes an information acquisition unit 71, a state determination unit 72, a sign determination unit 73 and a display unit 74. Among them, the information acquisition unit 71 is used to obtain the power supply information of the vehicle, and the power supply information includes the battery voltage and the voltage conversion state. The state determination unit 72 is used to determine the low-voltage power supply state according to the battery voltage and / or the voltage conversion state. The sign determination unit 73 is used to respond to an abnormality in the low-voltage power supply state, and determine the abnormal sign corresponding to the current abnormal situation according to the vehicle's power battery state and power supply information. The display unit 74 is used to display the corresponding reminder content according to the abnormal sign.

[0159] Optionally, the state determination unit 72 in this embodiment is specifically used to determine that the low-voltage power supply state is abnormal in response to the battery voltage being lower than a preset voltage threshold and / or the voltage conversion state is abnormal; and to determine that the low-voltage power supply state is normal in response to the battery voltage being greater than or equal to a preset voltage threshold and the voltage conversion state is normal.

[0160] Optionally, the flag determination unit 73 in this embodiment is specifically used to determine the battery voltage, the power battery state and the voltage conversion state; and determine the abnormal flag corresponding to the current abnormal situation according to the judgment result.

[0161] Further, when determining the abnormal flag corresponding to the current abnormal situation according to the judgment result, the flag determination unit 73 is also used to determine the abnormal flag corresponding to the current abnormal situation according to the gear state of the vehicle in response to the battery voltage meeting the first preset condition and control the vehicle to perform a corresponding operation according to the abnormal flag; or determine the abnormal flag corresponding to the current abnormal situation according to the power battery state in response to the battery voltage not meeting the first preset condition. The first preset condition is that the battery voltage is less than the voltage threshold and the duration reaches a first duration.

[0162] Further, when determining the abnormal flag corresponding to the current abnormal situation according to the power battery state, the flag determination unit 73 is also used to determine the abnormal flag corresponding to the current abnormal situation according to the battery power in response to the power battery state satisfying the second preset condition. Or in response to the power battery state not satisfying the second preset condition, determine the abnormal flag corresponding to the current abnormal situation according to the voltage conversion state. The second preset condition is that the power battery state is abnormal and the duration reaches a second duration.

[0163] Furthermore, when determining the abnormal flag corresponding to the current abnormal situation according to the voltage conversion state, the flag determination unit 73 is further used to determine the abnormal flag corresponding to the current abnormal situation according to the battery power in response to the voltage conversion state satisfying the third preset condition. The third preset condition is that the voltage conversion state is abnormal and the duration reaches a third time length.

[0164] Furthermore, the flag determination unit 73 in this embodiment is also used to determine the high-voltage power supply state of the vehicle in response to the battery voltage not meeting the first preset condition, the power battery state not meeting the second preset condition, and the voltage conversion state not meeting the third preset condition; or to cancel the vehicle's abnormal reminder in response to the high-voltage power supply state returning to normal.

[0165] Figure 8 Schematic diagram of an electronic device according to an embodiment of the present invention. Figure 8 As shown, Figure 8 The electronic device shown is a general address query device, which includes a general computer hardware structure, which at least includes a processor 81 and a memory 82. The processor 81 and the memory 82 are connected via a bus 83. The memory 82 is suitable for storing instructions or programs executable by the processor 81. The processor 81 can be an independent microprocessor or a collection of one or more microprocessors. Thus, the processor 81 executes the instructions stored in the memory 82, thereby executing the method flow of the embodiment of the present invention as described above to realize the processing of data and the control of other devices. The bus 83 connects the above-mentioned multiple components together, and at the same time connects the above-mentioned components to the display controller 84 and the display device and the input / output (I / O) device 85. The input / output (I / O) device 85 can be a mouse, a keyboard, a modem, a network interface, a touch input device, a somatosensory input device, a printer, and other devices known in the art. Typically, the input / output device 85 is connected to the system via an input / output (I / O) controller 86.

[0166] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, devices (equipment) or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware. Moreover, the present application may adopt a computer program product implemented on one or more computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0167] The present application is described with reference to flowcharts of methods, apparatuses (devices) and computer program products according to embodiments of the present application. It should be understood that each process in the flowchart can be implemented by computer program instructions.

[0168] These computer program instructions may 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 including an instruction device that implements the process Figure 1 A function specified in a process or multiple processes.

[0169] These computer program instructions may also 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 produce the instructions for implementing the process Figure 1 A device that specifies functions in a process or multiple processes.

[0170] Another embodiment of the present invention relates to a non-volatile storage medium for storing a computer-readable program, wherein the computer-readable program is used for a computer to execute part or all of the above method embodiments.

[0171] That is, those skilled in the art can understand that all or part of the steps in the above-mentioned embodiment method can be completed by specifying relevant hardware through a program, and the program is stored in a storage medium, including several instructions for a device (which can be a single-chip microcomputer, chip, etc.) or a processor (processor) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0172] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A vehicle control method, characterized in that: The method comprises: Acquiring power supply information of the vehicle, the power supply information including battery voltage and voltage conversion status; Determining a low voltage power supply state according to the battery voltage and / or voltage conversion state; In response to an abnormality in the low-voltage power supply state, determining an abnormality flag corresponding to the current abnormal situation according to the power battery state of the vehicle and the power supply information; The corresponding reminder content is displayed according to the abnormal sign.

2. The method according to claim 1, characterized in that Determining the low voltage power supply state according to the battery voltage and / or voltage conversion state comprises: In response to the battery voltage being lower than a preset voltage threshold and / or the voltage conversion state being abnormal, determining that the low voltage power supply state is abnormal; In response to the battery voltage being greater than or equal to a preset voltage threshold and the voltage conversion state being normal, it is determined that the low voltage power supply state is normal.

3. The method according to claim 1, characterized in that The determining of the abnormal flag corresponding to the current abnormal situation according to the power battery state of the vehicle and the power supply information includes: Determining the battery voltage, the power battery state, and the voltage conversion state; Determine the abnormal flag corresponding to the current abnormal situation based on the judgment result.

4. The method according to claim 3, characterized in that Determining the abnormal flag corresponding to the current abnormal situation according to the judgment result includes: In response to the battery voltage satisfying a first preset condition, determining an abnormality flag corresponding to a current abnormal situation according to a gear state of the vehicle, and controlling the vehicle to perform a corresponding operation according to the abnormality flag; In response to the battery voltage not satisfying a first preset condition, an abnormality flag corresponding to a current abnormal situation is determined according to the power battery state.

5. The method according to claim 4, characterized in that The first preset condition is that the battery voltage is less than a voltage threshold and lasts for a first time period.

6. The method according to claim 4, characterized in that Determining an abnormality flag corresponding to a current abnormal situation according to the gear state of the vehicle and controlling the vehicle to perform a corresponding operation according to the abnormality flag includes: In response to the vehicle being in the ON gear position, determining that the abnormality flag corresponding to the current abnormal situation is a first flag, and controlling the vehicle to reduce a low-voltage load; In response to the vehicle being in the ACC gear or the P gear, determining that the abnormal flag corresponding to the current abnormal situation is the second flag, and controlling the vehicle to reduce the low-voltage load and switch to the OFF gear.

7. The method according to claim 4, characterized in that The power supply information also includes the battery power, and the abnormal flag corresponding to the current abnormal situation determined according to the power battery state includes: In response to the power battery state satisfying a second preset condition, determining an abnormality flag corresponding to a current abnormal situation according to the battery power; In response to the power battery state not satisfying a second preset condition, an abnormal flag corresponding to a current abnormal situation is determined according to the voltage conversion state.

8. The method according to claim 7, characterized in that The second preset condition is that the power battery state is abnormal and the duration reaches a second time length.

9. The method according to claim 7, characterized in that: The abnormal flag corresponding to the current abnormal situation determined according to the battery power includes: In response to the battery power error not exceeding the error threshold and the battery power being lower than a preset power value, or in response to the battery power error exceeding the error threshold and lasting for a fourth time period, determining that the abnormal flag corresponding to the current abnormal situation is a third flag, and controlling the vehicle to reduce a low-voltage load; In response to the error of the battery power not exceeding the error threshold and the battery power not being lower than a preset power value, it is determined that the abnormal flag corresponding to the current abnormal situation is a fourth flag.

10. The method according to claim 7, characterized in that The determining of an abnormal flag corresponding to the current abnormal situation according to the voltage conversion state includes: In response to the voltage conversion state satisfying a third preset condition, an abnormal flag corresponding to a current abnormal situation is determined according to the battery power.

11. The method according to claim 10, characterized in that The third preset condition is that the voltage conversion state is abnormal and lasts for a third time period.

12. The method according to claim 10, characterized in that The abnormal flag corresponding to the current abnormal situation determined according to the battery power includes: In response to the battery power error not exceeding the error threshold and the battery power being lower than a preset power value, or in response to the battery power error exceeding the error threshold and lasting for a fourth time period, determining that the abnormal flag corresponding to the current abnormal situation is a fifth flag, and controlling the vehicle to reduce a low-voltage load; In response to the error of the battery power not exceeding the error threshold and the battery power not being lower than a preset power value, it is determined that the abnormal flag corresponding to the current abnormal situation is a sixth flag.

13. The method according to claim 1, characterized in that The method further comprises: In response to the battery voltage not satisfying a first preset condition, the power battery state not satisfying a second preset condition, and the voltage conversion state not satisfying a third preset condition, determining a high voltage power supply state of the vehicle; In response to the high-voltage power supply state returning to normal, the abnormal reminder of the vehicle is released.

14. A vehicle control system, characterized in that: The system comprises: A battery sensor configured to detect battery information, wherein the battery information includes battery voltage and battery power; a voltage conversion controller configured to convert the high voltage direct current into a low voltage direct current; A power battery controller is configured to detect a power battery status; A vehicle domain controller, connected to the battery sensor, the voltage conversion controller and the power battery controller, configured to obtain power supply information of the vehicle, determine a low-voltage power supply state according to the battery voltage and / or voltage conversion state in the power supply information, and in response to an abnormality in the low-voltage power supply state, determine an abnormality flag corresponding to the current abnormal situation according to the power battery state of the vehicle and the power supply information; The display is connected to the vehicle domain controller and is configured to display the reminder content corresponding to the abnormal sign.

15. A vehicle control device, characterized in that: The device comprises: An information acquisition unit, used to acquire power supply information of the vehicle, the power supply information including battery voltage and voltage conversion state; a state determination unit, used to determine a low voltage power supply state according to the battery voltage and / or voltage conversion state; a flag determination unit, configured to determine, in response to an abnormality in the low-voltage power supply state, an abnormal flag corresponding to a current abnormal situation according to a power battery state of the vehicle and the power supply information; The display unit is used to display corresponding reminder content according to the abnormal sign.

16. A computer program product, characterized in that The computer program product comprises a computer program / instructions, and when the computer program / instructions are executed by a processor, the method according to any one of claims 1 to 13 is implemented.

17. An electronic device comprising a memory and a processor, characterized in that: The memory is used to store one or more computer program instructions, wherein the one or more computer program instructions are executed by the processor to implement the method of any one of claims 1-13.

18. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method steps of any one of claims 1 to 13 are implemented.

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