A vehicle control method, apparatus, vehicle, and storage medium
By monitoring the health and charge levels of the vehicle's battery and controlling the target state of electrical equipment, the problem of battery depletion caused by continuous power supply from the low-voltage system during high-voltage system failures is solved, ensuring that the vehicle has sufficient power while waiting for rescue.
Patent Information
- Application Number
- CN202411592923.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2044-11-08
AI Technical Summary
When the vehicle's high-voltage system fails, the low-voltage system continues to supply power, causing the 12V battery to be quickly depleted, which affects rescue efforts.
By monitoring the health and charge levels of the battery, the target state of the electrical equipment can be determined to reduce power consumption and control the equipment to be in an energy-saving state when the high-voltage system is unable to supply power, until the power system is restored.
It effectively reduces battery power consumption, avoids battery depletion due to prolonged power consumption, and ensures that the vehicle can start normally and safely while waiting for rescue.
Smart Images

Figure CN119408499B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of vehicles, and more specifically, to a method, apparatus, vehicle, and storage medium for controlling a vehicle. Background Technology
[0002] Currently, if a vehicle experiences a malfunction that renders it unable to move, such as a failure in the high-voltage system causing it to malfunction and thus preventing the vehicle from moving, it may need to wait for roadside assistance. In this situation, since the high-voltage system is not functioning, the vehicle needs to be powered by its low-voltage system, namely the 12V battery.
[0003] However, if the low-voltage system continues to supply power to various loads in the vehicle during a high-voltage system failure, it may cause the 12V battery to deplete rapidly, resulting in a 12V battery drain and thus affecting vehicle rescue efforts. Summary of the Invention
[0004] This application provides a vehicle control method, device, vehicle, and storage medium. The method can reduce the power consumption of the battery and avoid the battery from running out of power due to prolonged power consumption while the vehicle is waiting for rescue, thereby affecting the rescue of the vehicle.
[0005] In a first aspect, a vehicle control method is provided, comprising: when it is determined that the vehicle's power system cannot enter a high-voltage power-on state, acquiring the current health value and target charge value of the vehicle's battery; based on the current health value and target charge value of the battery, determining a target state of electrical equipment inside the vehicle powered by the battery; wherein the target state is a state that reduces the power consumption of the battery; and controlling the electrical equipment to be in the target state until the vehicle's power system enters the high-voltage power-on state.
[0006] The aforementioned technical solution, when it is determined that the vehicle's power system cannot enter a high-voltage energizing state, can promptly understand the battery's operating status by monitoring the battery's health and charge levels in real time. Based on the battery's current health and target charge levels, the target state of the electrical equipment is determined, and while the vehicle's power system cannot enter a high-voltage energizing state, the electrical equipment is controlled to be in the target state. This maximizes the utilization of limited battery resources and improves energy efficiency. Since the target state includes reducing battery power consumption, controlling the electrical equipment to be in the target state can reduce battery power consumption, preventing battery depletion due to prolonged power consumption while the vehicle is waiting for rescue, thus avoiding impacting rescue efforts.
[0007] In conjunction with the first aspect, in some implementations of the first aspect, obtaining the target charge value of the vehicle's battery includes: determining whether a power supply duration for the battery to supply power to the electrical equipment is set; if it is determined that the power supply duration is not set, then determining a first charge value as the target charge value; wherein the first charge value is the charge value obtained when it is determined that the vehicle's power system cannot enter a high-voltage power-on state; if it is determined that the power supply duration is set, then starting a timer to obtain a timeout duration; and determining a second charge value as the target charge value; wherein the second charge value is the charge value obtained when it is determined that the timeout duration is equal to the power supply duration.
[0008] The above technical solution, by determining whether to set a power supply duration for the battery to power the electrical equipment, can fully consider the power needs of different users in different scenarios. If no power supply duration is set, it means that the use of the electrical equipment can be directly restricted. In this case, the first power value obtained when it is determined that the vehicle's power system cannot enter a high-voltage power-on state can be determined as the target power value. If a power supply duration is set, it means that the user may have a power demand, and the use of the electrical equipment will not be restricted temporarily. A timer can be started to obtain the time duration, and the second power value obtained when it is determined that the time duration equals the power supply duration can be determined as the target power value. Thus, based on the current health value and the target power value, the target state of the electrical equipment is determined. By controlling the electrical equipment to be in the target state, the purpose of reducing the power consumption of the battery is achieved, which helps to prevent the battery from being depleted and protects the battery's lifespan and performance. Through timing and control, it can be ensured that the battery power is used reasonably within the range set by the user, avoiding vehicle starting failure or other electrical system failures caused by excessive use of battery power.
[0009] In conjunction with the first aspect and the above implementation methods, in some implementation methods of the first aspect, before determining the second power value as the target power value, the method further includes: when the current health value is greater than a preset health threshold, obtaining the discharge current of the battery and obtaining the power supply duration set by the user; based on the discharge current, the power supply duration, the first power value, and the battery capacity of the battery, determining whether the battery can meet the power supply requirements of the electrical device within the power supply duration; if it is determined that the battery cannot meet the power supply requirements of the electrical device within the power supply duration, then determining the first power value as the target power value; determining the second power value as the target power value includes: if it is determined that the battery can meet the power supply requirements of the electrical device within the power supply duration, then determining the second power value as the target power value.
[0010] The above technical solution, before determining the second energy level as the target energy level, first determines whether the battery can meet the power supply needs of the electrical equipment within the specified power supply duration. If it is determined that the battery cannot meet the power supply needs of the electrical equipment within the specified power supply duration, the first energy level obtained when the vehicle's power system cannot enter the high-voltage power-on state is directly determined as the target energy level. Based on the current battery health and the target energy level, the target state of the electrical equipment is determined. By controlling the electrical equipment to be in the target state, the goal of reducing battery power consumption is achieved. If it is determined that the power supply needs of the electrical equipment can be met, then the second energy level is determined as the target energy level. This approach fully considers the power needs of different users in different scenarios and further prevents the battery from running out of power, avoiding battery depletion due to prolonged battery consumption while the vehicle is waiting for rescue, thus preventing disruption to rescue efforts.
[0011] In conjunction with the first aspect and the above-described implementations, in some implementations of the first aspect, determining whether the battery can meet the power supply requirements of the electrical device within the power supply duration based on the discharge current, the power supply duration, the first charge value, and the battery capacity includes: calculating the product of the power supply duration and the discharge current; calculating the ratio between the product and the battery capacity; and calculating the difference between the first charge value and the ratio; determining whether the absolute value of the difference is greater than or equal to a preset difference; if the absolute value of the difference is greater than or equal to the preset difference, then determining that the battery can meet the power supply requirements of the electrical device within the power supply duration; if the absolute value of the difference is less than the preset difference, then determining that the battery cannot meet the power supply requirements of the electrical device within the power supply duration.
[0012] In conjunction with the first aspect and the above implementation methods, in some implementation methods of the first aspect, when it is determined that the battery cannot meet the power supply requirements of the electrical equipment within the power supply duration, the method further includes: controlling the discharge current of the battery to decrease until the battery can meet the power supply requirements of the electrical equipment within the power supply duration.
[0013] The above technical solution can control the battery discharge current to reduce the power consumption of the battery when it is determined that the battery cannot meet the power supply needs of the electrical equipment within the power supply period.
[0014] In conjunction with the first aspect and the above-described implementations, in some implementations of the first aspect, determining the target state of electrical equipment powered by the battery within the vehicle based on the current health value and the target charge value of the battery includes: determining the target state of the electrical equipment as an off state when the current health value is less than or equal to a preset health threshold; determining the target state of the electrical equipment as a first energy-saving state when the current health value is greater than the preset health threshold and the target charge value is greater than a first preset charge threshold; determining the target state of the electrical equipment as a second energy-saving state when the target charge value is less than or equal to the first preset charge threshold and greater than a second preset charge threshold; wherein the first preset charge threshold is greater than the second preset charge threshold; the energy-saving degree of the second energy-saving state is higher than the energy-saving degree of the first energy-saving state; and determining the target state of the electrical equipment as an off state when the target charge value is less than or equal to the second preset charge threshold.
[0015] The above technical solution determines the different states of electrical equipment based on the current health value and the target power value. The energy-saving degree of different states of electrical equipment is also different, which can realize refined energy management and minimize the power consumption of the battery while ensuring user experience.
[0016] In combination with the first aspect and the above implementation methods, in some implementation methods of the first aspect, after controlling the electrical equipment to be in the target state, the method further includes: controlling the emergency lights on the exterior of the vehicle to remain on.
[0017] Secondly, a vehicle control device is provided, comprising: an acquisition module for acquiring the current health value and target charge value of the vehicle's battery when it is determined that the vehicle's power system cannot enter the high-voltage power-on state; a determination module for determining a target state of electrical equipment inside the vehicle powered by the battery based on the current health value and target charge value; wherein the target state is a state that reduces the power consumption of the battery; and a control module for controlling the electrical equipment to be in the target state until the vehicle's power system enters the high-voltage power-on state.
[0018] In conjunction with the second aspect, in some implementations of the second aspect, the acquisition module is specifically used to: determine whether a power supply duration for the battery to supply power to the electrical equipment is set; if it is determined that the power supply duration is not set, then the first power value is determined as the target power value; wherein, the first power value is the power value obtained when it is determined that the vehicle's power system cannot enter the high-voltage power-on state; if it is determined that the power supply duration is set, then the timing is started to obtain the timing duration; and the second power value is determined as the target power value; wherein, the second power value is the power value obtained when it is determined that the timing duration is equal to the power supply duration.
[0019] In conjunction with the second aspect and the above implementation methods, in some implementation methods of the second aspect, the device further includes a judgment module, which is specifically used to: when the current health value is greater than a preset health threshold, acquire the discharge current of the battery and acquire the power supply duration set by the user; based on the discharge current, the power supply duration, the first power value and the battery capacity, determine whether the battery can meet the power supply requirements of the electrical device within the power supply duration; if it is determined that the battery cannot meet the power supply requirements of the electrical device within the power supply duration, then determine the first power value as the target power value; the acquisition module includes a first determination unit, which is specifically used to: if it is determined that the battery can meet the power supply requirements of the electrical device within the power supply duration, then determine the second power value as the target power value.
[0020] In conjunction with the second aspect and the above implementation methods, in some implementation methods of the second aspect, the judgment module includes a judgment unit, which is specifically used to: calculate the product of the power supply duration and the discharge current, calculate the ratio between the product and the battery capacity of the storage battery, and calculate the difference between the first charge value and the ratio; determine whether the absolute value of the difference is greater than or equal to a preset difference; if the absolute value of the difference is greater than or equal to the preset difference, then determine that the storage battery can meet the power supply requirements of the electrical device within the power supply duration; if the absolute value of the difference is less than the preset difference, then determine that the storage battery cannot meet the power supply requirements of the electrical device within the power supply duration.
[0021] In conjunction with the second aspect and the above implementation methods, in some implementation methods of the second aspect, the judgment module further includes a control unit, which is specifically used to: control the discharge current of the battery to decrease until the battery can meet the power supply requirements of the electrical equipment within the power supply duration.
[0022] In conjunction with the second aspect and the above implementation methods, in some implementation methods of the second aspect, the determining module is specifically used for: determining the target state of the electrical device as an off state when the current health value is less than or equal to a preset health threshold; determining the target state of the electrical device as a first energy-saving state when the current health value is greater than the preset health threshold and the target power value is greater than a first preset power threshold; determining the target state of the electrical device as a second energy-saving state when the target power value is less than or equal to the first preset power threshold and greater than a second preset power threshold; wherein the first preset power threshold is greater than the second preset power threshold; the energy-saving degree of the second energy-saving state is higher than the energy-saving degree of the first energy-saving state; and determining the target state of the electrical device as an off state when the target power value is less than or equal to the second preset power threshold.
[0023] In conjunction with the second aspect and the above-described implementation, in some implementations of the second aspect, the device further includes a second control module, which is specifically used to control the emergency lights on the exterior of the vehicle to remain on.
[0024] Thirdly, a vehicle is provided, including a memory and a processor. The memory is used to store executable program code, and the processor is used to call and run the executable program code from the memory, causing the vehicle to perform the vehicle control methods of the first aspect and any possible implementation thereof.
[0025] Fourthly, a computer program product is provided, comprising: computer program code, which, when run on a computer, causes the computer to execute the vehicle control method of the first aspect and any possible implementation thereof.
[0026] Fifthly, a computer-readable storage medium is provided that stores computer program code, which, when executed on a computer, causes the computer to perform the vehicle control method of the first aspect and any possible implementation thereof. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of a vehicle control system provided in an embodiment of this application;
[0028] Figure 2 This is a schematic flowchart of a vehicle control method provided in an embodiment of this application;
[0029] Figure 3 This is a schematic diagram of the structure of a vehicle control device provided in an embodiment of this application;
[0030] Figure 4 This is a schematic diagram of the structure of a vehicle provided in an embodiment of this application. Detailed Implementation
[0031] The technical solutions in this application will be clearly and thoroughly described below with reference to the accompanying drawings. In the description of the embodiments of this application, unless otherwise stated, " / " means "or," for example, A / B can mean A or B. "And / or" in the text is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, in the description of the embodiments of this application, "multiple" refers to two or more than two.
[0032] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
[0033] Currently, if a vehicle experiences a malfunction that renders it unable to move, such as a failure in the high-voltage system causing it to malfunction and thus preventing the vehicle from moving, it may need to wait for roadside assistance. In this situation, since the high-voltage system is not functioning, the vehicle needs to be powered by its low-voltage system, namely the 12V battery.
[0034] However, if the low-voltage system continues to supply power to various loads in the vehicle during a high-voltage system failure, it may cause the 12V battery to deplete rapidly, resulting in a 12V battery drain and thus affecting vehicle rescue efforts.
[0035] Specifically, a dead 12V battery can prevent a vehicle from starting, making it difficult to move to a safe location or repair shop. Furthermore, if the vehicle is stopped in an unsafe position (such as in the middle of a lane) and cannot start or use its hazard lights, it could lead to a traffic accident, compromising vehicle safety. A dead 12V battery can also render onboard communication devices unusable, preventing timely contact with the outside world and accurate reporting of the vehicle's location to rescue personnel. Additionally, rescue vehicles may be unable to jump-start the disabled vehicle, as a dead battery cannot accept charging from an external power source. This significantly increases the difficulty and time cost of rescue efforts, and may even prevent the rescue from proceeding smoothly.
[0036] To address the aforementioned technical problems, this application provides a vehicle control method, wherein the executing entity of the method is a vehicle, specifically a controller within the vehicle.
[0037] Figure 1 This is a schematic diagram of a vehicle control system provided in an embodiment of this application.
[0038] For example, such as Figure 1 As shown, the vehicle's control system 100 includes a battery 101, an electrical battery sensor (EBS) 102, a central electronic module (CEM) 103, a lighting system controller 104, a waiting-for-help mode switch 105, an audio-visual entertainment system controller 106, and a power system controller 107.
[0039] The battery 101 can supply power to the EBS 102, CEM 103, and other vehicle loads. For example, the battery can be a low-voltage battery such as a lead-acid battery or a lithium battery. This application does not limit the type of battery used.
[0040] EBS102 is used to detect the status of the battery, including the battery's charge level and health value; it is also used to send the battery status to CEM 103.
[0041] For example, if the battery is a lead-acid battery, the status of the lead-acid battery is detected by EBS; if the battery is a lithium battery, the status of the lithium battery is detected by Battery Management System (BMS).
[0042] CEM 103 is used to receive the battery status signal sent by EBS 102, and also to receive the status signal of the waiting rescue mode switch 105. CEM 103 can also perform calculations based on the received signals, formulate reminder logic, and send instructions or signals to other systems.
[0043] The lighting system controller 104 is used to control the on or off of the lights inside and outside the vehicle.
[0044] The waiting-for-rescue mode switch 105 is used to control the activation or deactivation of the "waiting-for-rescue mode" in the vehicle. The waiting-for-rescue mode switch 105 can be integrated into the vehicle's head unit (HUT). The waiting-for-rescue mode can be understood as a mode activated after a vehicle encounters a breakdown or accident to ensure the safety of the occupants and facilitate the arrival of rescue personnel. When the waiting-for-rescue mode is activated, the vehicle's external hazard lights (i.e., "hazard lights") turn on, indicating that the vehicle is awaiting rescue.
[0045] The audio-visual entertainment system controller 106 is used to control the on or off of the in-vehicle display system, audio system and other audio-visual entertainment equipment.
[0046] The powertrain controller 107 is used to monitor and control the operation of the engine and other powertrain systems in a vehicle.
[0047] For example, if CEM 103 receives a status signal that the waiting-for-help mode switch 105 is in the on state, and determines that the vehicle has entered the waiting-for-help mode, it indicates that the vehicle may be unable to drive due to a malfunction or accident and needs assistance. Then, based on the status signal of the battery 101 sent by EBS 102, it can formulate reminder and control logic and send instructions or signals to other systems, such as sending instructions or signals to the lighting system controller 104, the audio-visual entertainment system controller 106, and the power system controller 107, to restrict the use of electrical appliances in the vehicle.
[0048] In the aforementioned system, when the CEM determines that the vehicle has entered the waiting-for-rescue mode, it can determine the control logic of the electrical equipment in the vehicle that uses the battery for power based on the battery's charge and health values, and send instructions or signals to the corresponding controllers. This allows the system to limit the power consumption of each electrical appliance in the vehicle while it is waiting for rescue, preventing the battery from running out of power due to prolonged and excessive power consumption, which could affect the rescue of the vehicle.
[0049] Figure 2 This is a schematic flowchart of a vehicle control method provided in an embodiment of this application.
[0050] For example, such as Figure 2 As shown, the method 200 includes:
[0051] S201: If it is determined that the vehicle's power system cannot enter the high-voltage power-on state, obtain the current health value and target charge value of the vehicle's battery.
[0052] S202, based on the current health value and target charge value of the battery, determines the target state of the electrical equipment inside the vehicle that uses battery power.
[0053] The target state mentioned above is the state of reducing the power consumption of the battery.
[0054] S203, control the electrical equipment to be in the target state until the vehicle's power system enters the high-voltage power-on state.
[0055] In this embodiment, when it is determined that the vehicle's power system cannot enter a high-voltage power-on state, the battery's operating status can be promptly understood by real-time monitoring of the battery's health and charge levels. Based on the battery's current health and target charge levels, a target state for the electrical equipment is determined. By controlling the electrical equipment to be in the target state while the vehicle's power system cannot enter a high-voltage power-on state, the limited battery resources can be utilized to the maximum extent, improving energy efficiency. Since the target state includes a state that reduces battery power consumption, controlling the electrical equipment to be in the target state can reduce battery power consumption, preventing battery depletion due to prolonged power consumption while the vehicle is waiting for rescue, thus avoiding impacting rescue efforts.
[0056] The following is about Figure 2 The specific implementation methods of each step in the illustrated embodiment are explained below:
[0057] Regarding the above S201, it can be understood that the above high-voltage power-on state refers to the state in which the vehicle's high-voltage battery system is ready to supply power to the motor and other high-voltage equipment.
[0058] Normally, when a vehicle's power system enters a high-voltage energized state, it is considered that the power system is operating normally and can provide sufficient power to drive the vehicle.
[0059] If the powertrain fails to power on at high voltage, it could be due to a faulty high-voltage battery preventing it from supplying power, or the vehicle detecting a safety hazard in the high-voltage system and automatically cutting off the high-voltage voltage. In short, the vehicle cannot operate normally if the powertrain fails to power on at high voltage.
[0060] In some embodiments, when a vehicle is unable to drive normally, the user can activate the wait-for-rescue mode in the vehicle's HUT.
[0061] For example, users can activate the waiting-for-rescue mode via the control switch integrated in HUT, or they can activate the waiting-for-rescue mode by issuing a voice command "Activate waiting-for-rescue mode". This application embodiment does not limit the method of activating the waiting-for-rescue mode.
[0062] Furthermore, if the vehicle's waiting-for-rescue mode is confirmed to be active, the vehicle's external emergency lights (i.e., "hazard lights") can be kept on. The vehicle can also send distress information, including its location and malfunction details, to emergency contacts or rescue platforms via in-vehicle communication systems such as Bluetooth or Wi-Fi.
[0063] As mentioned above, the current health value and target charge value of the battery can be obtained through the battery sensor.
[0064] The State of Health (SOH) of a battery is an indicator used to measure the performance level of a battery relative to its brand-new state. The health value is usually expressed as a percentage; the lower the value, the worse the battery's performance.
[0065] A battery's State of Charge (SOC) is a metric that measures the ratio of its current charge to its maximum capacity. SOC is usually expressed as a percentage, with higher values indicating a more fully charged battery.
[0066] Furthermore, since the battery's health value reflects its performance level relative to its brand-new state, when the health value falls below a certain threshold, it means that the battery's overall performance has significantly deteriorated and may not be able to provide stable power support. Therefore, it is necessary to first confirm whether the battery is still in a good health condition, that is, to obtain the battery's current health value and determine whether the current health value is greater than the preset health threshold.
[0067] For example, the preset health threshold can be set according to actual needs, such as 70%. If the current health value of the battery is greater than 70%, it means that the battery is in a healthy state; if the current health value of the battery is less than or equal to 70%, it means that the battery is in an unhealthy state.
[0068] If the current health value is greater than the preset health threshold, it indicates that the battery is in a healthy state. The battery's charge value can then be obtained, and the target state of the electrical equipment can be determined based on the battery's initial charge value.
[0069] As mentioned earlier, during a high-voltage system failure, the low-voltage system continuously supplies power to various loads in the vehicle, primarily powered by the battery within the low-voltage system. However, vehicle batteries typically only have 12V. If the battery is powered for an extended period without being charged, it may become depleted, leading to battery depletion. Therefore, when it is determined that the vehicle's powertrain cannot enter a high-voltage power-on state, obtaining the battery's current health value and target charge value can accurately determine the battery's current status.
[0070] Furthermore, it is possible to obtain the user's actual needs and determine the battery's energy-saving strategy based on the actual needs and the current state of the battery.
[0071] In one possible implementation, obtaining the target charge value of the vehicle's battery includes: determining whether a power supply duration for the battery to supply power to the electrical equipment is set; if it is determined that no power supply duration is set, then a first charge value is determined as the target charge value; wherein the first charge value is the charge value obtained when it is determined that the vehicle's power system cannot enter the high-voltage power-on state.
[0072] It is understood that the aforementioned electrical equipment refers to equipment inside the vehicle that is powered by a storage battery. This equipment may include, but is not limited to, instruments, screens, audio systems, air conditioning, seats, and interior and exterior lighting (excluding exterior emergency lights).
[0073] By determining whether a battery is set to supply power to the electrical equipment for a specified duration, the user's actual needs can be identified. For example, if the user needs to use the electrical equipment, then the battery can be set to supply power to the equipment for a specified duration.
[0074] In some embodiments, after the vehicle enters the waiting-for-help mode, the HUT screen can display the option of "Enter energy-saving mode immediately" or "Enter energy-saving mode later" for the user to choose from. The controller can determine whether a battery power supply duration for electrical equipment is set based on the user's selection.
[0075] For example, if the user's selected operation command is detected to correspond to the option "Enter energy-saving state immediately", it is determined that no power supply duration has been set; if the user's selected operation command is detected to correspond to the option "Enter energy-saving state later", it is determined that a power supply duration has been set.
[0076] Furthermore, if the user's selected operation command is detected to correspond to the option "Enter energy-saving mode later", the setting option "Power supply duration for electrical equipment" can be displayed on the HUT screen, and "Rescue personnel are expected to arrive in XX minutes" can also be displayed.
[0077] Understandably, the aforementioned power supply duration can be set based on the estimated waiting time for rescue displayed on the screen. During this power supply duration, users will not be restricted from using battery-powered electrical equipment.
[0078] For example, the power supply duration can be set by the user according to the expected waiting time for rescue displayed on the screen. For instance, if the screen displays "rescuers are expected to arrive in 10 minutes", the user can set the waiting time to 10 minutes on the HUT, meaning there is a set power supply duration and the power supply duration is 10 minutes.
[0079] If the user does not make any settings within 10 seconds, the vehicle's controller will set the power supply duration based on the estimated waiting time for rescue displayed on the screen. For example, if the screen displays "Rescue personnel are expected to arrive in 10 minutes", the waiting time will be set to 10 minutes, meaning there is a set power supply duration and the power supply duration is 10 minutes.
[0080] Furthermore, as mentioned above, if it is determined that no power supply duration is set, it means that the user has selected the "Enter Energy Saving State Immediately" option. The first power value obtained when the vehicle's power system cannot enter the high-voltage power-on state can be determined as the target power value. Based on the current health value of the battery and the target power value, the target state of the electrical equipment can be determined. By controlling the electrical equipment to be in the target state, the purpose of reducing the power consumption of the battery can be achieved.
[0081] If it is confirmed that a set power supply duration exists, it means that the user has selected the "Enter energy-saving mode later" option. In this case, there is no need to directly control the electrical equipment to enter the energy-saving mode. The electrical equipment will only be controlled to enter the energy-saving mode after the battery power supply duration reaches the set power supply duration. That is, the power value obtained when the timer reaches the power supply duration will be determined as the target power value.
[0082] In one possible implementation, obtaining the target battery charge value of the vehicle includes: if it is determined that a power supply duration is set, starting a timer to obtain the time duration; determining a second charge value as the target charge value; wherein the second charge value is the charge value obtained when the time duration is determined to be equal to the power supply duration.
[0083] Understandably, if there is a set duration for the battery to supply power to the electrical equipment, the timer will start from the current moment when that duration is set. Furthermore, if this timer is shorter than the set duration, the usage of the electrical equipment will not be restricted; that is, the system will execute "enter energy-saving mode later".
[0084] When the timing duration equals the set power supply duration, the second power value after the battery supplies power can be obtained and determined as the target power value. Based on the current health value and the target power value, the target state of the electrical equipment can be determined. By controlling the electrical equipment to be in the target state, the purpose of reducing the power consumption of the battery can be achieved.
[0085] Furthermore, as mentioned earlier, the battery capacity is usually relatively small. If the user sets a long power supply duration, the battery may be depleted due to prolonged power supply to the equipment, resulting in battery depletion. Therefore, it is advisable to first determine whether the battery can meet the power supply needs of the equipment within the specified power supply duration before deciding whether to execute the "enter energy-saving mode later" option.
[0086] In one possible implementation, before determining the second power value as the target power value, the method further includes: if the current health value is greater than a preset health threshold, obtaining the discharge current of the battery and obtaining the power supply duration set by the user; based on the discharge current, the power supply duration, the first power value and the battery capacity, determining whether the battery can meet the power supply needs of the electrical device within the power supply duration.
[0087] As can be understood, as mentioned above, when the current health value of the battery is greater than the preset health threshold, it indicates that the battery is in a healthy state. The battery discharge current and the power supply duration set by the user can then be obtained to determine whether the battery can meet the power supply needs of the electrical equipment within the power supply duration.
[0088] The aforementioned first electrical charge value is the electrical charge value obtained when it is determined that the vehicle's power system cannot be powered on.
[0089] The discharge current of the aforementioned battery can be obtained using a current sensor. The battery capacity of the aforementioned battery is the maximum amount of electricity that the battery can store, which is usually the calibrated value.
[0090] In one possible implementation, determining whether the battery can meet the power supply requirements of the electrical device within the power supply duration, based on the discharge current, the power supply duration, the first charge value, and the battery capacity, includes: calculating the product of the power supply duration and the discharge current; calculating the ratio between the product and the battery capacity; and calculating the difference between the first charge value and the ratio; determining whether the absolute value of the difference is greater than or equal to a preset difference; if the absolute value of the difference is greater than or equal to the preset difference, then determining that the battery can meet the power supply requirements of the electrical device within the power supply duration; if the absolute value of the difference is less than the preset difference, then determining that the battery cannot meet the power supply requirements of the electrical device within the power supply duration.
[0091] It's understandable that calculating the product of the power supply duration and the discharge current can be interpreted as calculating the total discharge amount of the battery within that power supply duration. That is, total discharge amount = discharge current * power supply duration.
[0092] Calculating the ratio of this product to the battery capacity can be understood as calculating the proportion of the battery's discharge during that power supply period. That is, discharge proportion = total discharge / battery capacity.
[0093] Calculating the difference between the initial charge value and this ratio (i.e., the discharge ratio) is to determine whether the battery can meet the power supply needs of the electrical equipment during the power supply period. That is, difference = initial charge value - discharge ratio.
[0094] If the absolute value of the difference is greater than or equal to the preset difference, it means that the first power value is much greater than the discharge ratio within the power supply duration. This means that the current power of the battery is relatively sufficient. After the discharge ratio of the battery within the power supply duration reaches the discharge ratio calculated above, there will still be some power remaining, and the battery will not be completely depleted. Therefore, it is determined that the battery can meet the power supply needs of the electrical equipment within the power supply duration.
[0095] If the absolute value of the difference is less than the preset difference, it means that after the battery discharges to the calculated discharge ratio within the power supply period, it may deplete the battery's power. In this case, it is determined that the battery cannot meet the power supply needs of the electrical equipment within the power supply period.
[0096] Furthermore, the aforementioned preset difference can be set according to actual needs, such as 40%.
[0097] For example, if the power supply duration is 1 hour (h), the discharge current is 3 amperes (A), and the battery capacity is 30 ampere-hours (Ah), the total discharge of the battery during the power supply duration is calculated as 1h * 3A = 3Ah. The ratio between the total discharge and the battery capacity is calculated as 3Ah / 30Ah = 10%.
[0098] If the first charge value is 80% and the preset difference is 40%, the difference between the first charge value and the above ratio is calculated to be 80% - 10% = 70%. The absolute value of 70% is greater than the preset difference of 40%, which means that the battery can meet the power supply needs of the electrical equipment within the power supply time.
[0099] Understandably, if the battery can meet the power supply needs of the electrical equipment within the specified power supply time, it means that the battery has sufficient power. Therefore, if the power supply time has not been reached, the electrical equipment in the vehicle can be unrestricted, i.e., the "enter energy-saving mode later" will be executed.
[0100] In one possible implementation, determining the second power value as the target power value includes: if it is determined that the battery can meet the power supply needs of the electrical equipment within the power supply duration, then the second power value is determined as the target power value.
[0101] As mentioned earlier, if the battery can meet the power supply needs of the electrical equipment within the specified power supply duration, it indicates that the battery currently has sufficient charge. Even if the discharge rate reaches the calculated discharge rate within the specified power supply duration, the battery still has sufficient charge. Based on this, if the specified power supply duration has not been reached, the electrical equipment in the vehicle can be left unrestricted, i.e., the "enter energy-saving mode later" option can be executed.
[0102] When the timing duration equals the power supply duration, the second power value after the battery supplies power can be obtained and determined as the target power value. Based on the current health value and the target power value, the target state of the electrical equipment can be determined. By controlling the electrical equipment to be in the target state, the purpose of reducing the power consumption of the battery can be achieved.
[0103] The above method, by determining whether to set the battery power supply duration for electrical equipment, can fully consider the power needs of different users in different scenarios. When the timed duration is less than the set power supply duration, there is no restriction on the use of electrical equipment, improving the convenience and comfort of users. When the timed duration reaches the set power supply duration, a second power value after the battery has supplied power is obtained and determined as the target power value. Based on the current health value and the target power value, the target state of the electrical equipment is determined. By controlling the electrical equipment to be in the target state, the goal of reducing battery power consumption is achieved, which helps prevent the battery from being depleted and protects the battery's lifespan and performance. Through timing and control, it can be ensured that the battery power is used reasonably within the range set by the user, avoiding vehicle starting failure or other electrical system malfunctions caused by excessive battery power consumption.
[0104] Furthermore, if it is determined that the battery cannot meet the power supply needs of the electrical equipment within the specified power supply time, it indicates that the battery charge is insufficient, and the electrical equipment in the vehicle needs to be restricted immediately.
[0105] In one possible implementation, if it is determined that the battery cannot meet the power supply requirements of the electrical equipment within the power supply duration, then the first power value is determined as the target power value.
[0106] Understandably, if it is determined that the battery cannot meet the power supply needs of the electrical equipment within the specified power supply duration, it means that the electrical equipment needs to be restricted immediately. Even if a power supply duration is set, the timer is no longer used. Instead, the first charge value obtained when the vehicle's power system cannot enter the high-voltage power-on state is directly determined as the target charge value. Based on the current health value of the battery and the target charge value, the target state of the electrical equipment is determined. By controlling the electrical equipment to be in the target state, the purpose of reducing the battery's power consumption is achieved.
[0107] For example, if the power supply duration is 2 hours (h), the discharge current is 6 amperes (A), and the battery capacity is 30 ampere-hours (Ah), the total discharge of the battery during the power supply duration is calculated as 2h * 6A = 12Ah. The ratio between the total discharge and the battery capacity is calculated to be 12Ah / 30Ah = 40%.
[0108] If the first charge value is 70% and the preset difference is 40%, the difference between the first charge value and the above ratio is calculated to be 70% - 40% = 30%. The absolute value of 30% is less than the preset difference of 40%, which means that the battery cannot meet the power supply needs of the electrical equipment within the power supply time.
[0109] In some embodiments, if it is determined that the battery cannot meet the power supply needs of the electrical equipment within the specified power supply duration, a message "The current battery charge is insufficient to support power supply for XX minutes" can be displayed on the HUT screen.
[0110] It can also display options for users to choose between "Change waiting time" and "Enter power saving mode immediately".
[0111] If the user selects the "Change waiting time" option, a page for changing the waiting time will be displayed. If, after the user changes the waiting time, the battery can meet the power supply needs of the electrical equipment within the changed waiting time, a timer can be started, and the electrical equipment will be restricted only if the timer duration equals the changed waiting time.
[0112] If the user changes the waiting time and it is determined that the battery is still unable to meet the power supply needs of the electrical equipment within the changed waiting time, the message "The current battery power is insufficient to support power supply for XX minutes" will be displayed again.
[0113] If the user selects the "Enter Energy Saving Mode Now" option, the power consumption of the equipment will be restricted immediately.
[0114] The above method determines how to limit the power supply of electrical equipment by judging whether the battery can meet the power supply needs of the equipment within the power supply period. While fully considering the power needs of different users in different scenarios, it can also further prevent the battery from running out of power and avoid the battery from being depleted due to prolonged power consumption while the vehicle is waiting for rescue, thus affecting the rescue of the vehicle.
[0115] Furthermore, if it is determined that the battery cannot meet the power supply needs of the electrical equipment within the power supply period, in order to prevent the battery from running out of power, in addition to immediately determining the target state of the electrical equipment based on the current health value and the first power value of the battery, the discharge current of the battery can also be limited.
[0116] In one possible implementation, if it is determined that the battery cannot meet the power supply requirements of the electrical device within the power supply duration, the method further includes: controlling the discharge current of the battery to decrease until the battery can meet the power supply requirements of the electrical device within the power supply duration.
[0117] It is understandable that the aforementioned discharge current refers to the current when the battery supplies power to the electrical equipment.
[0118] The aforementioned reduction in the discharge current of the battery can be achieved through a current limiting device in the circuit, such as a current limiter.
[0119] For example, as mentioned above, if the power supply duration is 2 hours (h), the discharge current is 6 amperes (A), and the battery capacity is 30 ampere-hours (Ah), the total discharge of the battery during the power supply duration is calculated as 2h * 6A = 12Ah. The ratio between the total discharge and the battery capacity is calculated to be 12Ah / 30Ah = 40%.
[0120] If the first charge value is 70% and the preset difference is 40%, the difference between the first charge value and the above ratio is calculated to be 70% - 40% = 30%. The absolute value of 30% is less than the preset difference of 40%, which means that the battery cannot meet the power supply needs of the electrical equipment within the power supply time.
[0121] Furthermore, based on the first power level of 70% and the current health level of 90%, the target state of the electrical equipment is determined to be the second energy-saving state, and the electrical equipment is controlled to be in the second energy-saving state. Then, the discharge current of the battery is controlled to decrease. If the battery can meet the power supply needs of the electrical equipment within the power supply duration when the discharge current decreases to 5A, the discharge current can be maintained at 5A.
[0122] As mentioned above, if it is determined that no power supply duration is set or that the battery cannot meet the power supply needs of the electrical equipment within the power supply duration, the first power value obtained when the vehicle's power system cannot enter the high-voltage power-on state is directly determined as the target power value; if it is determined that a power supply duration is set and that the battery can meet the power supply needs of the electrical equipment within the power supply duration, the second power value obtained when the timing duration is equal to the power supply duration is determined as the target power value.
[0123] Regarding S202 and S203 above, it is understood that the target power value can be the first power value obtained when the vehicle's power system cannot enter the high-voltage power-on state, or it can be the second power value obtained when the timing duration is equal to the power supply duration.
[0124] The electrical equipment inside the aforementioned vehicles that uses battery power may include, but is not limited to, instruments, screens, audio systems, air conditioning, seats, and interior and exterior lights (excluding exterior emergency lights).
[0125] To more rationally limit electrical equipment, the target state of the equipment can be determined based on the current health value and target charge value of the battery.
[0126] In one possible implementation, the target state of the electrical equipment inside the vehicle powered by the battery is determined based on the current health value and the target charge value of the battery, including: if the current health value is less than or equal to the preset health threshold, the target state of the electrical equipment is determined to be the off state.
[0127] Understandably, as mentioned above, if the current health value of the battery is less than or equal to the preset health threshold, it means that the battery is in an unhealthy state.
[0128] Furthermore, if electrical appliances are used while the battery is in an unhealthy state, the battery's energy will be further consumed, accelerating its damage. Also, the electrical energy supplied by an unhealthy battery may be extremely unstable; continued use of electrical appliances may deplete the battery's charge even faster, leading to battery depletion.
[0129] Based on this, when the current health value is less than or equal to the preset health threshold, the electrical equipment in the vehicle powered by the battery can be turned off, that is, the target state of the electrical equipment is determined to be the off state.
[0130] In another possible implementation, based on the current health value and target charge value of the battery, the target state of the electrical equipment inside the vehicle powered by the battery is determined, including: if the current health value is greater than a preset health threshold, and the target charge value is greater than a first preset charge threshold, then the target state of the electrical equipment is determined to be a first energy-saving state; if the target charge value is less than or equal to the first preset charge threshold and greater than a second preset charge threshold, then the target state of the electrical equipment is determined to be a second energy-saving state; wherein the first preset charge threshold is greater than the second preset charge threshold; the energy saving degree of the second energy-saving state is higher than that of the first energy-saving state; if the target charge value is less than or equal to the second preset charge threshold, then the target state of the electrical equipment is determined to be a shut-off state.
[0131] Understandably, as mentioned above, if the current health value is less than or equal to the preset health threshold, it indicates that the battery is in a healthy state, and the target state of the electrical equipment can be further determined based on the current battery charge value.
[0132] For example, the first preset battery threshold and the second preset battery threshold can be set according to the actual situation of the vehicle, such as setting the first preset battery threshold to 80% and the second preset battery threshold to 40%.
[0133] The first energy-saving state can be set according to the first preset power threshold; the second energy-saving state can be set according to the second preset power threshold.
[0134] If the target battery level is greater than the first preset battery threshold, it indicates that the battery's current charge is sufficient to maintain the vehicle's audio-visual entertainment system, but vehicle functions need to be limited. If only vehicle functions are limited, the first energy-saving state can be set as follows: air conditioning with fan speed limited to level 3, seat ventilation and heating functions off, screen and instrument panel brightness limited to 50%, audio system volume limited to 50%, and interior and exterior lights remaining at their original settings.
[0135] If the target battery level is less than or equal to the first preset battery level threshold and greater than the second preset battery level threshold, it indicates that the current battery level is sufficient to maintain the operation of the vehicle's audio-visual entertainment system. However, further restrictions on the vehicle's functions are required (more restrictions than the first energy-saving state). The second energy-saving state can be set as follows: the air conditioner is off, the seat ventilation and heating functions are off, the screen and instrument panel brightness is limited to no more than 50%, the audio volume is limited to no more than 50%, the interior lights are off, and the exterior lights remain as they were.
[0136] If the target battery level is less than or equal to the second preset battery threshold, it indicates that the current battery level is insufficient and cannot provide entertainment services for the vehicle. Therefore, the target state of the electrical equipment is determined to be off.
[0137] Furthermore, after determining the target state of the aforementioned electrical equipment, the electrical equipment can be controlled to be in the target state.
[0138] For example, if the target state of the electrical equipment is determined to be the first energy-saving state, then the air conditioner is controlled to have a fan speed of no more than level 3, the ventilation and heating functions of the seats are controlled to be turned off, the screen and instrument panel are controlled to have a brightness of no more than 50%, the audio system is controlled to have a volume of no more than 50%, and the interior and exterior lights are controlled to remain in their original state.
[0139] In some embodiments, after the controlled electrical equipment is in the target state, the CEM can start timing and send a high-voltage power-on request to the power system at preset time intervals. If the power system enters the high-voltage power-on state after receiving the high-voltage power-on request, the controlled electrical equipment returns to the initial state; if the power system is still unable to enter the high-voltage power-on state after receiving the high-voltage power-on request, the controlled electrical equipment continues to be in the target state.
[0140] It is understandable that the initial state mentioned above refers to the state of the electrical equipment before it is controlled to be in the target state.
[0141] The preset duration can be set according to actual needs; for example, the preset duration can be set to 2 seconds.
[0142] For example, if the preset duration is 2 seconds, after the controlled electrical equipment is in the target state, the CEM starts timing and sends a high-voltage power-on request to the power system every 2 seconds. If the power system receives the high-voltage power-on request and enters the high-voltage power-on state, the controlled electrical equipment is restored to the initial state.
[0143] To ensure the safety of vehicles while waiting for rescue, there are no restrictions on the emergency lights on the exterior of the vehicle.
[0144] In one possible implementation, after controlling the electrical equipment to be in the target state, the method further includes: controlling the emergency lights on the exterior of the vehicle to remain on.
[0145] It is understandable that the aforementioned emergency lights refer to the hazard warning lights at the rear of the vehicle, also known as "double flashers".
[0146] When a vehicle cannot be powered on, it is usually unable to move. To ensure vehicle safety and avoid rear-end collisions, the vehicle's external hazard lights can be kept on to alert other road users to the vehicle's status.
[0147] Figure 3 This is a schematic diagram of the structure of a vehicle control device provided in an embodiment of this application.
[0148] For example, such as Figure 3 As shown, the device 300 includes:
[0149] The acquisition module 301 is used to acquire the current health value and target charge value of the vehicle's battery when it is determined that the vehicle's power system cannot enter the high-voltage power-on state.
[0150] The determination module 302 is used to determine the target state of electrical equipment inside the vehicle that uses the battery for power supply based on the current health value and the target charge value of the battery.
[0151] The target state is to reduce the power consumption of the battery.
[0152] The control module 303 is used to control the electrical equipment to be in the target state until the vehicle's power system enters the high-voltage power-on state.
[0153] In one possible implementation, the acquisition module is specifically used to: determine whether a power supply duration for the battery to supply power to the electrical device is set; if it is determined that the power supply duration is not set, then a first power value is determined as the target power value; wherein, the first power value is the power value obtained when it is determined that the vehicle's power system cannot enter the high-voltage power-on state; if it is determined that the power supply duration is set, then a timer is started to obtain the time duration; and a second power value is determined as the target power value; wherein, the second power value is the power value obtained when it is determined that the time duration is equal to the power supply duration.
[0154] Optionally, the device further includes a judgment module, which is specifically used to: when the current health value is greater than a preset health threshold, acquire the discharge current of the battery and acquire the power supply duration set by the user; based on the discharge current, the power supply duration, the first power value, and the battery capacity, determine whether the battery can meet the power supply requirements of the device within the power supply duration; if it is determined that the battery cannot meet the power supply requirements of the device within the power supply duration, then determine the first power value as the target power value; the acquisition module includes a first determination unit, which is specifically used to: if it is determined that the battery can meet the power supply requirements of the device within the power supply duration, then determine the second power value as the target power value.
[0155] In one possible implementation, the judgment module includes a judgment unit, which is specifically used to: calculate the product of the power supply duration and the discharge current; calculate the ratio between the product and the battery capacity of the storage battery; and calculate the difference between the first charge value and the ratio; determine whether the absolute value of the difference is greater than or equal to a preset difference; if the absolute value of the difference is greater than or equal to the preset difference, then determine that the storage battery can meet the power supply requirements of the electrical device within the power supply duration; if the absolute value of the difference is less than the preset difference, then determine that the storage battery cannot meet the power supply requirements of the electrical device within the power supply duration.
[0156] In one possible implementation, the judgment module further includes a control unit, which is specifically used to: control the discharge current of the battery to decrease until the battery can meet the power supply requirements of the electrical equipment within the power supply duration.
[0157] In one possible implementation, the determining module is specifically used to: determine the target state of the electrical device as an off state when the current health value is less than or equal to a preset health threshold; determine the target state of the electrical device as a first energy-saving state when the current health value is greater than the preset health threshold and the target power value is greater than a first preset power threshold; determine the target state of the electrical device as a second energy-saving state when the target power value is less than or equal to the first preset power threshold and greater than a second preset power threshold; wherein the first preset power threshold is greater than the second preset power threshold; the energy saving degree of the second energy-saving state is higher than that of the first energy-saving state; and determine the target state of the electrical device as an off state when the target power value is less than or equal to the second preset power threshold.
[0158] Optionally, the device further includes a second control module, which is specifically used to control the emergency lights on the exterior of the vehicle to remain on.
[0159] Figure 4 This is a schematic diagram of the structure of a vehicle provided in an embodiment of this application.
[0160] For example, such as Figure 4 As shown, the vehicle 400 includes a memory 401 and a processor 402. The memory 401 stores executable program code 4011, and the processor 402 is used to call and execute the executable program code 4011 to perform a vehicle control method.
[0161] Furthermore, embodiments of this application also protect an apparatus that may include a memory and a processor, wherein the memory stores executable program code, and the processor is used to call and execute the executable program code to perform a vehicle control method provided in embodiments of this application.
[0162] This embodiment can divide the device into functional modules based on the above method example. For example, each module can correspond to a separate function, or two or more functions can be integrated into one processing module. The integrated module can be implemented in hardware. It should be noted that the module division in this embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods.
[0163] When the functional modules are divided according to their respective functions, the device may also include an acquisition module, a determination module, and a control module. It should be noted that all relevant content regarding the steps involved in the above method embodiments can be referenced from the functional descriptions of the corresponding functional modules, and will not be repeated here.
[0164] It should be understood that the device provided in this embodiment is used to execute the above-described vehicle control method, and therefore can achieve the same effect as the above-described implementation method.
[0165] When using an integrated unit, the device may include a processing module and a storage module. When the device is applied to a vehicle, the processing module can be used to control and manage the vehicle's movements. The storage module can be used to support the vehicle in executing relevant program code and data.
[0166] The processing module may be a processor or a controller, which can implement or execute various exemplary logic blocks, modules, and circuits shown in conjunction with the disclosure of this application. The processor may also be a combination of functions that implement computing capabilities, such as a combination of one or more microprocessors, a combination of digital signal processing (DSP) and a microprocessor, etc., and the storage module may be a memory.
[0167] In addition, the device provided in the embodiments of this application may specifically be a chip, component or module. The chip may include a connected processor and a memory. The memory is used to store instructions. When the processor calls and executes the instructions, the chip can execute a vehicle control method provided in the above embodiments.
[0168] This embodiment also provides a computer-readable storage medium storing computer program code. When the computer program code is run on a computer, the computer executes the above-described related method steps to implement a vehicle control method provided in the above embodiment.
[0169] This embodiment also provides a computer program product that, when run on a computer, causes the computer to perform the aforementioned related steps to implement a vehicle control method provided in the above embodiment.
[0170] In this embodiment, the device, computer-readable storage medium, computer program product, or chip are all used to execute the corresponding methods provided above. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods provided above, and will not be repeated here.
[0171] Through the above description of the embodiments, those skilled in the art will understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.
[0172] In the embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another device, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.
[0173] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A method for controlling a vehicle, characterized in that, The method includes: If it is determined that the vehicle's power system cannot enter a high-voltage power-on state, the current health value and target charge value of the vehicle's battery are obtained; wherein, obtaining the target charge value of the vehicle's battery includes: determining whether a power supply duration for the battery to supply power to electrical equipment is set; if it is determined that no power supply duration is set, then a first charge value is determined as the target charge value; the first charge value is the charge value obtained when it is determined that the vehicle's power system cannot enter a high-voltage power-on state; if it is determined that a power supply duration is set, then a timer is started to obtain the time duration; a second charge value is determined as the target charge value; the second charge value is the charge value obtained when it is determined that the time duration is equal to the power supply duration; Based on the current health value and target charge value of the battery, the target state of the electrical equipment inside the vehicle that uses the battery for power supply is determined; wherein, the target state is a state that reduces the power consumption of the battery. The electrical equipment is controlled to be in the target state until the vehicle's power system enters the high-voltage power-on state.
2. The method according to claim 1, characterized in that, Before determining the second power value as the target power value, the method further includes: If the current health value is greater than a preset health threshold, the discharge current of the battery is obtained, and the power supply duration is obtained. Based on the discharge current, the power supply duration, the first power value, and the battery capacity, it is determined whether the battery can meet the power supply requirements of the electrical equipment within the power supply duration. If it is determined that the battery cannot meet the power supply requirements of the electrical equipment within the power supply duration, then the first power value is determined as the target power value; Determining the second power value as the target power value includes: If it is determined that the battery can meet the power supply requirements of the electrical equipment within the power supply duration, then the second power value is determined as the target power value.
3. The method according to claim 2, characterized in that, The step of determining whether the battery can meet the power supply requirements of the electrical equipment within the specified power supply duration based on the discharge current, the power supply duration, the first charge value, and the battery capacity includes: Calculate the product of the power supply duration and the discharge current, calculate the ratio between the product and the battery capacity of the storage battery, and calculate the difference between the first charge value and the ratio; Determine whether the absolute value of the difference is greater than or equal to a preset difference; If the absolute value of the difference is greater than or equal to the preset difference, then it is determined that the battery can meet the power supply requirements of the electrical equipment within the power supply duration. If the absolute value of the difference is less than the preset difference, it is determined that the battery cannot meet the power supply requirements of the electrical equipment within the power supply duration.
4. The method according to claim 2, characterized in that, If it is determined that the storage battery cannot meet the power supply requirements of the electrical equipment within the specified power supply duration, the method further includes: The discharge current of the battery is controlled to decrease until the battery can meet the power supply requirements of the electrical equipment within the power supply duration.
5. The method according to claim 1, characterized in that, Determining the target state of electrical equipment inside the vehicle powered by the battery based on the battery's current health value and target charge value includes: If the current health value is less than or equal to a preset health threshold, the target state of the electrical equipment is determined to be the off state; If the current health value is greater than the preset health threshold, and the target power value is greater than the first preset power threshold, then the target state of the electrical equipment is determined to be the first energy-saving state. If the target power value is less than or equal to the first preset power threshold and greater than the second preset power threshold, then the target state of the electrical equipment is determined to be the second energy-saving state; wherein, the first preset power threshold is greater than the second preset power threshold; and the energy-saving degree of the second energy-saving state is higher than that of the first energy-saving state. If the target power value is less than or equal to the second preset power threshold, then the target state of the electrical equipment is determined to be the off state.
6. The method according to claim 1, characterized in that, After controlling the electrical equipment to be in the target state, the method further includes: Keep the emergency lights on the exterior of the vehicle turned on.
7. A vehicle control device, characterized in that, The device includes: The acquisition module is used to acquire the current health value and target charge value of the vehicle's battery when it is determined that the vehicle's power system cannot enter the high-voltage power-on state. The acquisition of the target charge value of the vehicle's battery includes: determining whether a power supply duration for the battery to supply power to electrical equipment is set; if it is determined that no power supply duration is set, then a first charge value is determined as the target charge value; the first charge value is the charge value acquired when it is determined that the vehicle's power system cannot enter the high-voltage power-on state; if it is determined that a power supply duration is set, then a timer is started to obtain the time duration; a second charge value is determined as the target charge value; the second charge value is the charge value acquired when it is determined that the time duration is equal to the power supply duration. The determination module is used to determine the target state of electrical equipment inside the vehicle that uses the battery for power supply, based on the current health value and the target charge value of the battery; wherein the target state is a state that reduces the power consumption of the battery. The control module is used to control the electrical equipment to be in the target state until the vehicle's power system enters the high-voltage power-on state.
8. A vehicle, characterized in that, The vehicles include: Memory, used to store executable program code; A processor for calling and running the executable program code from the memory, causing the vehicle to perform the method as described in any one of claims 1 to 6.
9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed, implements the method as described in any one of claims 1 to 6.
Citation Information
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