Electric energy management method and device for electric vehicle, storage medium and program product

Abstract

The invention relates to an electric energy management method for an electric vehicle, the method is executed by a control system of the electric vehicle, the electric vehicle is provided with a solar panel, a main battery and a standby battery, and the method comprises the following steps: controlling the solar panel to obtain electric energy and charge the standby battery; when the electric vehicle is in the power-off state, starting a standby battery in response to a received first instruction sent by the vehicle control application program, so as to control the electric vehicle to enter a power-on state; the vehicle control application program is an application program with the capability of controlling the electric vehicle; and under the condition that the electric vehicle is in the power-on state, responding to a second instruction which is sent by the vehicle control application program and corresponds to the specified electric device, and controlling the specified electric device to execute a function corresponding to the second instruction. According to the scheme, the electric energy management efficiency of the electric vehicle can be improved, and the safety of the electric vehicle is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of new energy vehicle technology, and in particular to an electric vehicle power management method, device, storage medium and program product. Background Art

[0002] With the rapid development of the new energy industry, new energy vehicles have emerged. New energy vehicles mainly rely on electricity to maintain vehicle operation. Therefore, the management of electricity for electric vehicles is very important.

[0003] In the related technology, there is a battery inside the electric vehicle, which is used to power the electric vehicle to maintain the normal operation of the electric vehicle. When the battery is out of power, the battery can be charged through an external charging gun. Moreover, when the electric vehicle is powered on, the built-in car system is turned on. Users can use the car system to control various accessories in the car based on the power provided by the battery to achieve specified operations, such as controlling the lights inside the electric vehicle.

[0004] However, in the above scheme, the user's way of managing the electric energy of electric vehicles is relatively simple, the management effect is poor, and it is easy to cause safety hazards. Summary of the invention

[0005] The embodiment of the present application provides an electric vehicle power management method, device, storage medium and program product, which can improve the power management efficiency of electric vehicles and improve the safety of electric vehicles. The technical solution is as follows:

[0006] On the one hand, a method for managing electric energy of an electric vehicle is provided, the method being executed by a control system of the electric vehicle, the electric vehicle being provided with a solar panel, a main battery and a backup battery, the main battery being used to supply power to a driving system and various electrical devices of the electric vehicle; the backup battery being used to store the electric energy collected by the solar panel and to supply power to designated electrical devices in the electric vehicle, the designated electrical devices being all or part of the electrical devices among the various electrical devices; the capacity of the backup battery being smaller than the capacity of the main battery; the backup battery and the main battery being isolated by a heat insulating material; the method comprising:

[0007] Controlling the solar panel to obtain electrical energy and charge the backup battery;

[0008] When the electric vehicle is in a power-off state, in response to receiving a first instruction sent by a vehicle control application, the backup battery is started to control the electric vehicle to enter a power-on state; the vehicle control application is an application capable of controlling the electric vehicle;

[0009] When the electric vehicle is in the powered-on state, in response to receiving a second instruction corresponding to the designated electrical device sent by the vehicle control application, the designated electrical device is controlled to execute a function corresponding to the second instruction.

[0010] In another aspect, a power management device for an electric vehicle is provided, the device comprising:

[0011] A solar charging management module, used for controlling the solar panel to obtain electrical energy and charge the backup battery;

[0012] a backup battery starting module, configured to start the backup battery in response to receiving a first instruction sent by a vehicle control application when the electric vehicle is in a power-off state, so as to control the electric vehicle to enter a power-on state; the vehicle control application is an application capable of controlling the electric vehicle;

[0013] The function execution module is used to control the designated electrical device to execute the function corresponding to the second instruction in response to receiving a second instruction corresponding to the designated electrical device sent by the vehicle control application when the electric vehicle is in the power-on state.

[0014] In some embodiments, the solar charging management module is used to obtain the longitude, latitude and time information of the solar panel through the global positioning system of the electric vehicle;

[0015] Determine the solar declination angle based on the latitude and the time information;

[0016] determining an hour angle based on the longitude, the latitude, and the time information;

[0017] Based on the latitude, the solar declination angle and the hour angle, the target angle of the solar panel is determined by the following formula 1:

[0018] Formula 1:

[0019] in, represents the latitude, δ represents the solar declination angle, ω represents the hour angle, and θ represents the target angle;

[0020] Controlling the solar panel to adjust according to the target angle so that the solar panel is perpendicular to the sunlight to obtain solar energy;

[0021] The solar energy is converted into the electrical energy through the solar panel and charged into the backup battery.

[0022] In some embodiments, the solar charging management module includes:

[0023] An electric vehicle solar energy monitoring module, used to obtain the output voltage, output current and environmental parameters of the solar panel through the sensor of the electric vehicle;

[0024] The solar panel adjustment module is used to adjust the orientation of the solar panel through the MPPT algorithm based on the output voltage, output current and environmental parameters of the solar panel.

[0025] In some embodiments, the total capacity of the backup battery is less than 2 kWh;

[0026] When the proportion of the power of the backup battery to the total capacity is lower than a first proportion threshold, the power supply of the backup battery to the designated electrical device is limited.

[0027] In some embodiments, the apparatus further comprises:

[0028] A power supply stop module is used to stop the backup battery from supplying power to non-essential electrical devices among the designated electrical devices when the proportion of the power of the backup battery to the total capacity is lower than a second proportion threshold; the second proportion threshold is lower than the first proportion threshold.

[0029] In some embodiments, the apparatus further comprises:

[0030] The charging stop module is used to stop the solar panel from charging the backup battery when it is monitored that the charging current and / or charging voltage of the solar panel to the backup battery exceeds a safe range.

[0031] On the other hand, a computer device is provided, which includes a processor and a memory, wherein the memory stores at least one instruction, at least one program, a code set or an instruction set, and the at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by the processor to implement the electric vehicle power management method as described above.

[0032] On the other hand, a computer-readable storage medium is provided, wherein at least one instruction, at least one program, code set or instruction set is stored in the storage medium, and the at least one instruction, at least one program, code set or instruction set is loaded and executed by a processor to implement the electric vehicle power management method as described above.

[0033] In another aspect, a computer program product is provided, the computer program product comprising a computer program, the computer program being stored in a computer-readable storage medium. A processor of a computer device reads the computer program from the computer-readable storage medium, and the processor executes the computer program, so that the computer device executes the electric vehicle power management method provided in the above-mentioned various optional implementations.

[0034] The technical solution provided by this application may have the following beneficial effects:

[0035] The backup battery is charged when the solar panel obtains electricity and is physically isolated from the main battery. When the electric vehicle is in a power-off state, the control system of the electric vehicle starts the backup battery through the first command sent by the vehicle control application, so that the electric vehicle enters a power-on state, which is convenient for quickly restoring the operating ability of the electric vehicle in an emergency, and also provides an additional layer of protection mechanism for the electric vehicle. Specifically, after the vehicle is powered off, the user can remotely start the backup battery with less power to ensure the normal operation of the vehicle's electrical components. Since the backup battery has a small capacity and is isolated from the main battery by insulating material, even if the backup battery loses control during use, the impact range can be controlled to ensure safety, thereby effectively improving the overall reliability and safety of the electric vehicle.

[0036] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0038] Figure 1 is a system configuration diagram of an electric vehicle power management method according to an embodiment of the present application;

[0039] Figure 2 is a flow chart of an electric vehicle power management method provided by an embodiment of the present application;

[0040] Figure 3 is a flow chart of an electric vehicle power management method provided by an embodiment of the present application;

[0041] Figure 4 This is a system functional diagram of a solar-based automobile power conversion mechanism in this application;

[0042] Figure 5 This is a work flow chart of a solar-based automobile power conversion mechanism in this application;

[0043] Figure 6is a block diagram of an electric vehicle power management device provided by an exemplary embodiment of the present application;

[0044] Figure 7 It is a structural diagram of a computer device provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0045] Here, exemplary embodiments are described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application.

[0046] Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as recited in the appended claims.

[0047] Figure 1 FIG. 1 is a system diagram of an electric vehicle power management method according to an embodiment of the present application. Figure 1 As shown, the electric vehicle 100 can be wirelessly connected to the vehicle control application 110, which is an application capable of controlling the electric vehicle 100; the electric vehicle 100 includes a control system 101 and a drive system 102; the vehicle 100 is provided with a solar panel 100a, a main battery 100b, a backup battery 100c and designated electrical devices 100d; the main battery 100b is used to supply power to the drive system 102 and various electrical devices of the electric vehicle 100; the capacity of the backup battery 100c is smaller than that of the main battery 100b; the backup battery 100c and the main battery 100b are isolated by a heat insulating material; the backup battery 100c is used to store the electric energy collected by the solar panel 100a, and is used to supply power to the designated electrical devices 100d in the electric vehicle 100, and the designated electrical devices 100d are all or part of the electrical devices among the various electrical devices.

[0048] like Figure 1 As shown, the control system 101 of the electric vehicle 100 can control the solar panel 100a to obtain electric energy and charge the backup battery 100c; when the electric vehicle 100 is in a power-off state, the control system 101 responds to receiving a first instruction sent by the vehicle control application 110, and starts the backup battery 100c to control the electric vehicle 100 to enter a power-on state; when the electric vehicle 100 is in a power-on state, the control system 101 responds to receiving a second instruction sent by the vehicle control application 110 and corresponding to the designated electrical device 100d, and controls the designated electrical device 100d to execute the function corresponding to the second instruction.

[0049] For example, please refer to Figure 2 , Figure 2 This is a flow chart of an electric vehicle power management method provided by an embodiment of the present application. Figure 2 The electric vehicle power management method shown can be executed by a control system of the electric vehicle. For example, the electric vehicle can be the above-mentioned Figure 1 The control system of the electric vehicle 100 shown may be Figure 1 A control system 101 is shown.

[0050] In an embodiment of the present application, an electric vehicle is provided with a solar panel, a main battery and a backup battery. The main battery is used to supply power to a driving system and various electrical devices of the electric vehicle; the backup battery is used to store electric energy collected by the solar panel and to supply power to designated electrical devices in the electric vehicle, which are all or part of the various electrical devices; the capacity of the backup battery is smaller than that of the main battery; the backup battery and the main battery are isolated from each other by a heat-insulating material.

[0051] Among them, the above-mentioned solar panel can be set on the top of the electric car, and can convert sunlight into electrical energy through the photovoltaic effect.

[0052] Among them, the above-mentioned main battery can provide electrical energy for the driving system of the electric vehicle.

[0053] The backup battery can store the electric energy collected by the solar panel, and supply power to the main battery or electrical devices of the electric vehicle when the main battery cannot meet the power demand of the electric vehicle.

[0054] Among them, the above-mentioned designated electrical devices are electrical devices that can be powered solely by a backup battery.

[0055] The thermal insulation material may be a material having thermal insulation properties and capable of blocking heat transfer from one battery to another.

[0056] In the embodiment of the present application, the capacity of the backup battery is relatively small, and the possibility and potential harm of the backup battery losing control are relatively low; the backup battery and the main battery are isolated by heat-insulating materials, which can effectively prevent heat transfer between the backup battery and the main battery, ensuring that the two batteries each work within the optimal temperature range, that is, abnormal heating of one battery will not affect the normal operation of the other battery. For example, when the driver remotely starts the backup battery to power on, even if the backup battery has unexpected situations such as thermal runaway, the impact range is limited to the backup battery, and will not affect the main battery, avoiding a wider range of energy runaway and ensuring the safety of the electric vehicle.

[0057] like Figure 2 As shown, the electric vehicle power management method may include step 210, step 220 and step 230, which are specifically implemented as follows.

[0058] Step 210: Control the solar panel to obtain electrical energy and charge the backup battery.

[0059] In an embodiment of the present application, a control system of an electric vehicle controls the solar panel to face the sun at a specified angle, absorbs sunlight through the solar panel, and converts the current into direct current suitable for storage in a backup battery to charge the backup battery through the power electronic equipment built into the solar panel.

[0060] Step 220: When the electric vehicle is in a power-off state, in response to receiving a first instruction sent by a vehicle control application, the backup battery is started to control the electric vehicle to enter a power-on state; the vehicle control application is an application capable of controlling the electric vehicle.

[0061] The power-off state refers to that the main systems (eg, control system) and components of the electric vehicle are in a shutdown or standby state. In some embodiments, the electric vehicle enters the power-off state after the driver turns off the power of the electric vehicle.

[0062] Among them, the above-mentioned vehicle control application refers to a software application installed on a smart device (such as a smart phone, tablet computer or smart watch) for remote control and management of various functions of an electric vehicle. The vehicle control application can realize control operations on the electric vehicle by communicating with the control system of the electric vehicle.

[0063] The first instruction is a command sent by the vehicle control application to the control system of the electric vehicle, and is used to start the backup battery.

[0064] The power-on state means that the main systems (eg, control system) and components of the electric vehicle have been started or entered a working state, and the electric vehicle can perform driving operations or other functions in the power-on state.

[0065] In an embodiment of the present application, a user can send a first instruction to the control system of an electric vehicle through a vehicle control application on a smart device. After receiving the first instruction, the control system of the electric vehicle activates the backup battery management system of the electric vehicle according to the first instruction. The backup battery can be managed by the backup battery management system, and the backup battery is started by the backup battery management system, so that the electric vehicle enters a power-on state.

[0066] Step 230: When the electric vehicle is powered on, in response to receiving a second instruction corresponding to the designated electrical device sent by the vehicle control application, the designated electrical device is controlled to execute a function corresponding to the second instruction.

[0067] The second instruction is an operation instruction for a designated electrical device. For example, the designated electrical device may be a car air conditioner, and the second instruction may be to turn on the car air conditioner.

[0068] In an embodiment of the present application, a user can issue a second instruction to the control system of the electric vehicle through a vehicle control application on a smart device. The second instruction is sent to the control system of the electric vehicle through a wireless communication protocol, and the control system controls designated electrical devices according to the second instruction.

[0069] In an embodiment of the present application, the backup battery is charged when the solar panel obtains electricity and is physically isolated from the main battery. When the electric vehicle is in a power-off state, the control system of the electric vehicle starts the backup battery through a first instruction sent by the vehicle control application, so that the electric vehicle enters a power-on state, which is convenient for quickly restoring the operating ability of the electric vehicle in an emergency situation, and also provides an additional layer of protection mechanism for the electric vehicle. Specifically, after the vehicle is powered off, the user can remotely start a backup battery with a smaller power to ensure the normal operation of the vehicle's electrical components. Since the backup battery has a small capacity and is isolated from the main battery by insulating material, even if the backup battery loses control during use, the impact range can be controlled to ensure safety, thereby effectively improving the overall reliability and safety of the electric vehicle.

[0070] Based on the solutions shown in any one or more of the above embodiments, in some embodiments, the above step 210 can be implemented as obtaining the longitude, latitude and time information of the solar panel through the global positioning system of the electric vehicle; determining the solar declination angle based on the latitude and time information; determining the hour angle based on the longitude, latitude and time information; and determining the target angle of the solar panel based on the latitude, the solar declination angle and the hour angle by the following formula 1:

[0071] Formula 1:

[0072] in, represents latitude, δ represents the solar declination angle, ω represents the hour angle, and θ represents the target angle;

[0073] The solar panel is controlled to adjust according to the target angle so that the solar panel is perpendicular to the sunlight to obtain solar energy; the solar energy is converted into electrical energy through the solar panel and charges the backup battery.

[0074] Among them, the above-mentioned global positioning system is a satellite-based navigation system that can provide accurate location and time information.

[0075] In an embodiment of the present application, the global positioning system of the electric vehicle can obtain the longitude, latitude and time information of the solar panel.

[0076] In an embodiment of the present application, the control system of the electric vehicle receives signals from multiple satellites through the global positioning system, uses triangulation to accurately calculate the real-time longitude and latitude of the solar panel, and synchronously receives the precise time signal transmitted by the satellite.

[0077] In an embodiment of the present application, the above-mentioned solar declination angle is related to the date, and the date can be determined by time information. Based on the latitude, the solar declination angle can be calculated according to the time information (date) by using a regular formula indicating that the sun's direct point moves periodically between the Tropic of Cancer and the Tropic of Capricorn with seasonal changes.

[0078] In an embodiment of the present application, the control system of the electric vehicle can determine the local standard time based on the longitude. The calculation method is UTC (Coordinated Universal Time) plus the number of hours corresponding to the longitude difference. The actual observation time (time information) is converted into the time difference relative to the local standard time, and finally the hour angle is determined by calculating through a specified formula.

[0079] In an embodiment of the present application, after calculating the target angle according to Formula 1, the control system can adjust the orientation and tilt angle of the solar panel through the mechanical device of the electric vehicle to move the solar panel to the target angle to maximize the solar panel's absorption rate of sunlight.

[0080] In the embodiment of the present application, the control system uses the global positioning system to obtain the longitude, latitude and time information of the solar panel, and calculates the target angle of the solar panel through formula one in combination with the latitude of the solar panel, the solar declination angle and the hour angle, and dynamically adjusts the angle of the solar panel to adapt to changes in different times and geographical locations, ensuring that it can be perpendicular to the sun's rays under various conditions, maximizing the absorption of light energy, and efficiently converting solar energy into electrical energy, thereby effectively improving the efficiency of obtaining electrical energy. After obtaining electrical energy, the risk of failure of electric vehicles due to insufficient power can be reduced based on a stable power supply, further improving driving safety.

[0081] Based on the solutions shown in any one or more of the above embodiments, in some embodiments, the control system of the electric vehicle obtains the output voltage, output current and environmental parameters of the solar panel through the sensors of the electric vehicle; based on the output voltage, output current and environmental parameters of the solar panel, the direction of the solar panel is adjusted through the MPPT algorithm.

[0082] In the embodiment of the present application, multiple sensors may be provided on the electric vehicle, including but not limited to voltage sensors, current sensors, and environmental sensors (e.g., temperature sensors, light intensity sensors). The voltage sensor is used to measure the output voltage of the solar panel, the current sensor is used to measure the output current of the solar panel, and the environmental sensor is used to collect the ambient temperature and light intensity of the environment in which the solar panel is located.

[0083] The above-mentioned MPPT (Maximum Power Point Tracking) is an optimization algorithm used to find the maximum power point that the solar panel can output under the current working conditions.

[0084] In an embodiment of the present application, the control system inputs the acquired output voltage, output current and environmental parameters of the solar panel into the MPPT algorithm. The MPPT algorithm calculates the optimal operating point based on the output voltage, output current and environmental parameters provided by the sensor, and dynamically adjusts the orientation and tilt angle of the solar panel based on the calculation results.

[0085] In the embodiment of the present application, the control system monitors the output voltage, output current and environmental parameters of the solar panel in real time through sensors, ensuring that the control system can obtain accurate data of the current solar panel in working state, and dynamically adjusts the orientation of the solar panel according to the above data using the MPPT algorithm, so that the solar panel can operate at maximum power under different lighting conditions, which not only improves the efficiency of converting solar energy into electrical energy, but also ensures that the backup battery can obtain a more stable charging source, thereby enhancing the power supply reliability of the backup battery.

[0086] Based on the scheme shown in any one or more of the above embodiments, in some embodiments, the total capacity of the backup battery of the electric vehicle is less than 2 kWh; when the proportion of the power of the backup battery to the total capacity is lower than a first proportion threshold, the power supply of the backup battery to the designated electrical device is limited.

[0087] Among them, the total capacity of the above-mentioned backup battery refers to the maximum amount of electricity that the backup battery can store, and 2 kWh is equivalent to 7.2 kWh.

[0088] The first ratio threshold is a preset safety limit, which can be set to a percentage (eg, 20%) of the remaining power of the backup battery.

[0089] In the embodiment of the present application, the control system can monitor the power level of the backup battery of the electric vehicle in real time. When the power level of the backup battery of the electric vehicle drops below a first ratio threshold, the control system automatically reduces or stops the backup battery from supplying power to the designated power-consuming device. The designated power-consuming device can be a non-critical power-consuming device, such as the lights inside the electric vehicle.

[0090] In an embodiment of the present application, the total capacity of the backup battery is limited to 2 kWh, ensuring that the backup battery has sufficient power reserves to cope with emergencies. When the proportion of the backup battery's power to the total capacity is lower than a first ratio threshold, the control system limits the power supply of the backup battery to designated electrical devices, ensuring that key systems of the electric vehicle can obtain priority power supply, effectively preventing the risk of the electric vehicle losing basic functions due to excessive consumption of the backup battery, and effectively improving the power supply safety of the backup battery.

[0091] Based on the schemes shown in any one or more of the above-mentioned embodiments, in some embodiments, when the proportion of the power of the backup battery to the total capacity is lower than a second proportion threshold, the control system of the electric vehicle stops the backup battery from supplying power to non-essential electrical devices among the designated electrical devices; the second proportion threshold is lower than the first proportion threshold.

[0092] The second ratio threshold refers to a safety limit lower than the first ratio threshold, for example, it can be set to a threshold of 10% or lower than 10%.

[0093] Among them, the above-mentioned non-essential electrical devices can be entertainment systems or air conditioners of electric vehicles and other equipment that do not affect the operating safety and basic operations of the electric vehicle.

[0094] Among them, the above-mentioned key systems are components that can maintain the driving safety of electric vehicles, such as the electric vehicle's braking system, power steering system and instrument panel display.

[0095] In an embodiment of the present application, the control system can monitor the power level of the backup battery in real time. When the power level of the backup battery drops below a second proportional threshold, the control system automatically cuts off power supply to non-essential electrical devices to prioritize the basic driving functions and operation of key systems of the electric vehicle.

[0096] The above-mentioned basic driving function refers to the basic driving capability of the electric vehicle.

[0097] In some embodiments, before the power level is expected to drop to the second proportional threshold, the control system can shut down some non-essential electrical devices in advance to prevent the danger of sudden power outage when the power level of the backup battery drops below the second proportional threshold.

[0098] In an embodiment of the present application, when the power of the backup battery drops to a second proportional threshold (lower than the first proportional threshold), the control system automatically stops the backup battery from supplying power to non-essential electrical devices, giving priority to ensuring the basic driving functions and operation of key systems of the electric vehicle. This can effectively avoid the risk of the vehicle losing basic functions due to depletion of the backup battery, ensure that the necessary operation and safety performance of the electric vehicle can be maintained under extreme circumstances, and effectively improve the power supply safety of the backup battery through hierarchical management.

[0099] For example, based on Figure 2 , please refer to Figure 3 , Figure 3 2 is a flow chart of an electric vehicle power management method provided by an embodiment of the present application. The electric vehicle power management method further includes step 240, which is as follows.

[0100] Step 240: When it is monitored that the charging current and / or charging voltage of the solar panel to the backup battery exceeds a safe range, stop the solar panel from charging the backup battery.

[0101] The charging current and charging voltage refer to the current and voltage flowing from the solar panel to the backup battery.

[0102] In the embodiment of the present application, the control system can monitor and obtain the charging current and charging voltage of the backup battery from the solar panel in real time through the current sensor and the voltage sensor.

[0103] The above safety range refers to the maximum charging current and maximum charging voltage of the solar panel to the backup battery that the control system allows, which can be a preset upper limit value of the charging current of the solar panel to the backup battery, and a preset upper limit value of the charging voltage of the solar panel to the backup battery.

[0104] In an embodiment of the present application, when the control system detects that the charging current or charging voltage of the solar panel to the backup battery exceeds a safe range, the circuit between the solar panel and the backup battery is cut off through an intelligent switch or relay to prevent possible safety hazards, such as damage to the backup battery due to overheating of the backup battery.

[0105] In some embodiments, the control system can resume charging after stopping charging, that is, when the charging current or voltage of the solar panel to the backup battery returns to normal, the control system can automatically restore the solar panel's charging capacity to the backup battery to continue to use solar energy resources to replenish the energy of the backup battery.

[0106] In an embodiment of the present application, after the control system stops the solar panel from charging the backup battery for a specified period of time, it re-evaluates the current charging condition of the solar panel and resumes the charging operation after confirming safety. When resuming charging, a lower initial current and voltage are used, and then the charging current and charging voltage are gradually increased to normal levels. The gradual recovery charging method helps to extend the life of the backup battery.

[0107] In the embodiment of the present application, the control system monitors the charging current and voltage of the solar panel to the backup battery in real time. When an abnormality is detected, the solar panel is immediately stopped from charging the backup battery to prevent possible safety hazards, which can effectively extend the service life of the backup battery and improve the safety of electricity use in electric vehicles.

[0108] Based on the schemes shown in any one or more of the above-mentioned embodiments, in some embodiments, the control system responds to the temperature of the backup battery reaching a first temperature, and displays a high temperature prompt message through a vehicle control application, and the high temperature prompt message is used to remind the driver to manually disconnect the power consumption of some designated electrical devices.

[0109] Among them, the above-mentioned first temperature threshold is a pre-set safety temperature upper limit. When the temperature of the backup battery reaches this threshold, the control system will trigger a high temperature warning signal.

[0110] Among them, the above-mentioned high temperature prompt information is a warning message displayed by the vehicle control application to the user when the temperature of the backup battery is too high, reminding the driver to take measures to reduce the temperature.

[0111] In an embodiment of the present application, the backup battery is equipped with a temperature sensor, which can monitor the temperature of the backup battery in real time. When the temperature of the backup battery reaches a preset first temperature threshold, the control system generates a high temperature warning signal, which is sent to the vehicle control application on the user's smart device through a wireless communication protocol. After the vehicle control application receives the high temperature warning signal, a high temperature prompt message is displayed on the user interface. The high temperature prompt message indicates the current temperature condition of the backup battery and the recommended measures to be taken. For example, if the current temperature of the backup battery is high, it is recommended that the user manually disconnect non-critical electrical devices (for example, air conditioners or entertainment systems of electric vehicles, etc.) to reduce the power consumption of the backup battery, thereby reducing the battery temperature. In some embodiments, the high temperature prompt message may also include a sound or vibration alarm. Optionally, an operation interface may be displayed in the vehicle control application, and the user may realize one-click shutdown of the selected electrical device through specified operations on the operation interface, so as to quickly shut down non-critical electrical devices and quickly reduce the power supply burden of the backup battery.

[0112] In an embodiment of the present application, when the temperature of the backup battery reaches the first temperature threshold, the control system generates a high temperature prompt message to guide the user to take action to reduce the load and temperature, which can effectively prevent the safety hazards caused by overheating of the backup battery, effectively ensure the power safety of electric vehicles, reduce unnecessary power consumption, and extend the life of the backup battery.

[0113] Based on the scheme shown in any one or more of the above embodiments, in some embodiments, in response to the temperature of the backup battery reaching a second temperature, the control system stops the backup battery from supplying power to the electric vehicle and ejects the backup battery out of the vehicle to avoid safety problems caused by overheating of the backup battery; the first temperature is lower than the second temperature.

[0114] The second temperature threshold is a safe upper temperature limit higher than the first temperature threshold.

[0115] In an embodiment of the present application, the temperature sensor of the backup battery monitors the temperature in real time. When the temperature of the backup battery reaches a second temperature threshold, the control system cuts off the power connection between the backup battery and the electric vehicle to ensure that the backup battery does not supply power to any electrical components of the electric vehicle, and activates the mechanical pop-up device of the electric vehicle. The backup battery is quickly ejected from the interior of the electric vehicle through the mechanical pop-up device and placed at a safe distance.

[0116] In an embodiment of the present application, when the temperature of the backup battery reaches the second temperature threshold, the control system automatically stops the backup battery from supplying power to the vehicle to prevent further heating of the backup battery and potential risks, and safely removes the backup battery from the vehicle to avoid fire or explosion caused by thermal runaway of the backup battery, effectively preventing serious safety hazards caused by overheating of the backup battery, and eliminating potential safety hazards through physical isolation, effectively ensuring the safety of electricity use in electric vehicles.

[0117] Based on the above Figure 2 and Figure 3 In the steps of the embodiment, the embodiment of the present application shows a solar-based automobile power conversion mechanism.

[0118] For example, please refer to Figure 4 , Figure 4 This is a system functional diagram of a solar-based automobile power conversion mechanism of the present application. The system includes a solar panel 51, a backup battery 52, a vehicle control 53, a server 54, and a mobile phone application 55. The solar panel 51 can be set outside the vehicle, the backup battery 52, the vehicle control 53, and the server 54 are set inside the vehicle, and the mobile phone application 55 can control the vehicle through wireless communication with the server 54.

[0119] In the embodiment of the present application, the vehicle can convert solar energy into electrical energy through photovoltaic power generation through the solar panel 51, and store it in the backup battery 52 inside the vehicle, so that the user can use the vehicle function normally when he wants to use it, or when the main battery of the vehicle is out of power, the backup battery 52 can be used to power the vehicle control 53. A solar power supply system and a driver that can communicate with the solar power supply system are integrated in the vehicle control 53. The driver can exchange data with the solar panel 51 through a serial port, a CAN (Controller Area Network) bus or other communication protocols.

[0120] In the embodiment of the present application, the solar panel 51 can be set on the top of the vehicle to collect the electric energy data converted from solar energy in real time. There is a data acquisition module in the vehicle controller, which can transmit the electric energy data to the vehicle computer or embedded system, display the electric energy data on the central control screen and display the current power in real time.

[0121] The above-mentioned electric energy data refers to various quantitative parameters generated by the solar panel 51 in the process of converting solar energy into electric energy, and the electric energy data includes but is not limited to the following.

[0122] 1) Real-time power output, such as the power value recorded when a 35W street lamp is working, reflects the power generation per unit time.

[0123] 2) Voltage / current parameters, such as the voltage range (2-4V) and current value (see table data) of the LED when it is working, which are the core indicators for evaluating power quality.

[0124] 3) Energy conversion efficiency, such as 28% conversion rate, is calculated by comparing the incident solar energy (2.7×10 7 J) and the actual output electrical energy (7.56×106J).

[0125] 4) Energy storage status parameters, such as the battery charge capacity (such as 24V battery pack) and discharge depth, directly affect the system's continuous power supply capability.

[0126] 5) System loss data, such as line loss and inverter efficiency.

[0127] In the embodiment of the present application, in order to maximize the use of the energy provided by the solar panel, an energy management and optimization algorithm can be developed. The DRL (Deep Reinforcement Learning) algorithm combines deep learning and reinforcement learning and can be used to optimize the energy management of the solar panel 51. The DRL algorithm can determine when to charge, when to discharge, and the distribution of power to various components in the vehicle based on the vehicle's energy needs, the output conversion power of the solar panel 51, and the state of the battery (i.e., how much power the battery currently has and whether it needs to be converted again).

[0128] In an embodiment of the present application, the mobile phone application 55 can enable the solar panel 51 to collect solar energy for the backup battery 52 after the user leaves the vehicle, and power the vehicle computer central control 53 through the backup battery 52, so that the vehicle computer central control 53 executes the instructions from the server 54, turns on the external circulation, adjusts the temperature of the air conditioner, and other operations; the server 54 is responsible for relaying the execution of the mobile phone application 55, and the status of the vehicle computer central control 53 after the execution of the instructions; the mobile phone application 55 is responsible for sending operation instructions to the server 54, and receiving the operation completion status feedback from the server 54, and timely observing the vehicle computer status.

[0129] In an embodiment of the present application, a user interface is provided in the vehicle, and the user interface can display information such as the output power of the solar panel 51, the charging status of the backup battery 52, and the energy distribution. This interface can be implemented using a graphics library, a UI library, and a status monitoring library. In actual use, the solar power supply system may encounter faults, such as damage to the battery panel, communication interruption, etc. A fault detection module is provided in the solar power supply system, and the fault detection module includes a monitoring model, which learns from the sensor data of the solar panel 51 by using a machine learning algorithm to predict faults at an early stage, monitor the operating status of the system, and take corresponding fault-tolerant measures.

[0130] For example, please refer to Figure 5 , Figure 5 This is a workflow diagram of a solar-based automobile power conversion mechanism in this application.

[0131] In the embodiment of the present application, when the user leaves the car and locks the car, the vehicle automatically starts the battery to start the solar charging function, and converts solar energy into electrical energy through the backup battery, and provides the electrical energy in the battery to the vehicle computer central control. The user can control the application on the vehicle computer central control through the mobile phone application, for example, execute the operation of turning on the air conditioner. After turning on the air conditioner, upload the status to the server through the application, and the server sends the air conditioner status to the mobile phone application in the form of an interface.

[0132] The above involves hardware modifications and software modifications.

[0133] First, you need to install solar panels on the car to receive solar energy. Secondly, you need to add a backup battery to the car to store solar electricity and provide power when the main battery is out of power.

[0134] In order to maximize energy capture efficiency, the core principle of adjusting the angle of solar panels according to light is to keep them perpendicular to the sunlight to maximize energy conversion efficiency.

[0135] In the embodiment of the present application, the solar panel can be based on the dynamic tracking technology: 1. The photosensitive sensor detects the light intensity in real time. 2. GPS (Global Positioning System) locates and obtains the longitude and latitude and time data. 3. PID (Proportional-Integral-Derivative Control) control algorithm calculates the target angle:

[0136] (φ: latitude, δ: solar declination angle, ω: hour angle), to achieve the function of adjusting the angle of the solar panel according to the angle and direction of the sun. Solar panels have different energy output under different lighting conditions, and lighting instability may cause fluctuations in energy production. The MPPT algorithm can be used to optimize the orientation of the panel in real time. The MPPT algorithm is designed to ensure that the solar panel operates at maximum power under different lighting conditions, which helps to increase energy production and reduce energy waste.

[0137] In the embodiments of the present application, artificial intelligence plays a role in optimizing the connection between renewable energy and traditional power grids. The use of artificial intelligence technology to predict and manage energy production and storage can solve power grid problems and alleviate large-scale power outages. This is achieved through mathematical modeling, genetic algorithms or other optimization methods. According to the energy needs of the vehicle, the battery status and the output of the solar panels, it is determined when to charge, when to discharge and how to distribute energy. Secondly, a network data request is required to transmit the data of the vehicle to the server, and the user's operation on the mobile phone is transmitted to the server to control the vehicle. There is a significant improvement in both safety and convenience, solving the problem of the user's inability to control the car when away from the car, and the most common situation of hot cars in summer.

[0138] Please refer to Figure 6 , which shows a block diagram of an electric vehicle power management device provided by an exemplary embodiment of the present application. The electric vehicle power management device can be implemented as all or part of a computer device by hardware or a combination of hardware and software to achieve the above Figures 2 to 3 All or part of the steps in the embodiments shown. Figure 6As shown, the electric vehicle power management device includes:

[0139] The solar charging management module 601 is used to control the solar panel to obtain electric energy and charge the backup battery;

[0140] The backup battery starting module 602 is used to start the backup battery in response to receiving a first instruction sent by the vehicle control application when the electric vehicle is in a power-off state, so as to control the electric vehicle to enter a power-on state; the vehicle control application is an application capable of controlling the electric vehicle;

[0141] The function execution module 603 is used to control the designated electrical device to execute the function corresponding to the second instruction in response to receiving a second instruction corresponding to the designated electrical device sent by the vehicle control application when the electric vehicle is powered on.

[0142] In some embodiments, the solar charging management module 601 is used to obtain the longitude, latitude and time information of the solar panel through the global positioning system of the electric vehicle;

[0143] Determine the solar declination angle based on the latitude and time information;

[0144] Determine the hour angle based on the longitude, latitude and time information;

[0145] Based on the latitude, solar declination and hour angle, the target angle of the solar panel is determined by the following formula:

[0146] Formula 1:

[0147] in, represents latitude, δ represents the solar declination angle, ω represents the hour angle, and θ represents the target angle;

[0148] Control the solar panels to adjust according to the target angle so that the solar panels are perpendicular to the sunlight and capture solar energy;

[0149] Solar panels convert solar energy into electricity and charge backup batteries.

[0150] In some embodiments, the solar charging management module 601 includes:

[0151] The electric vehicle solar energy monitoring module is used to obtain the output voltage, output current and environmental parameters of the solar panel through the electric vehicle's sensors;

[0152] The solar panel adjustment module is used to adjust the orientation of the solar panel through the MPPT algorithm based on the output voltage, output current and environmental parameters of the solar panel.

[0153] In some embodiments, the total capacity of the backup battery is less than 2 kWh;

[0154] When the proportion of the power of the backup battery to the total capacity is lower than a first proportion threshold, the power supply of the backup battery to the designated electrical device is limited.

[0155] In some embodiments, the apparatus further comprises:

[0156] The power supply stopping module is used to stop the backup battery from supplying power to non-essential electrical devices in the designated electrical devices when the proportion of the power of the backup battery to the total capacity is lower than a second proportion threshold; the second proportion threshold is lower than the first proportion threshold.

[0157] In some embodiments, the apparatus further comprises:

[0158] The charging stop module is used to stop the solar panel from charging the backup battery when it is monitored that the charging current and / or charging voltage of the solar panel to the backup battery exceeds a safe range.

[0159] Please refer to Figure 7 , Figure 7 7 is a schematic diagram of the structure of a computer device provided by an exemplary embodiment of the present application. The computer device 700 includes a central processing unit (CPU) 701, a system memory 704 including a random access memory (RAM) 702 and a read-only memory (ROM) 703, and a system bus 705 connecting the system memory 704 and the central processing unit 701. The computer device 700 also includes a basic input / output system (I / O system) 706 that helps transmit information between various devices in the computer, and a large-capacity storage device 707 for storing an operating system 713, application programs 714 and other program modules 715.

[0160] The basic input / output system 706 includes a display 708 for displaying information and an input device 709 such as a mouse and a keyboard for user inputting information. The display 708 and the input device 709 are connected to the central processing unit 701 through an input / output controller 710 connected to the system bus 705. The basic input / output system 706 may also include an input / output controller 710 for receiving and processing inputs from a plurality of other devices such as a keyboard, a mouse, or an electronic stylus. Similarly, the input / output controller 710 also provides output to a display screen, a printer, or other types of output devices.

[0161] The mass storage device 707 is connected to the central processing unit 701 through a mass storage controller (not shown) connected to the system bus 705. The mass storage device 707 and its associated computer readable media provide non-volatile storage for the computer device 700. That is, the mass storage device 707 may include a computer readable medium (not shown) such as a hard disk or a CD-ROM (Compact Disc Read-Only Memory) drive.

[0162] Without loss of generality, computer readable media may include computer storage media and communication media. Computer storage media include volatile and non-volatile, removable and non-removable media implemented by any method or technology for storing information such as computer readable instructions, data structures, program modules or other data. Computer storage media include RAM (Random Access Memory), ROM (Read-Only Memory), EPROM (Erasable Programmable Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), flash memory or other solid-state storage technologies, CD-ROM, DVD (Digital Video Disc) or other optical storage, cassettes, tapes, disk storage or other magnetic storage devices. Of course, those skilled in the art will appreciate that computer storage media are not limited to the above. The above-mentioned system memory 704 and mass storage device 707 can be collectively referred to as memory.

[0163] The computer device 700 can be connected to the Internet or other network devices through a network interface unit 711 connected to the system bus 705 .

[0164] The memory also includes one or more programs, one or more programs are stored in the memory, and the central processing unit 701 implements the one or more programs by executing the one or more programs. Figures 2 to 4 All or part of the steps in the method shown.

[0165] In an exemplary embodiment, a chip is also provided. The chip includes a programmable logic circuit and / or program instructions. When the chip runs on a computer device, it is used to implement all or part of the steps of the method shown in the above embodiments of the present application.

[0166] In an exemplary embodiment, a computer program product is also provided, the computer program product includes computer instructions, the computer instructions are stored in a computer-readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor reads and executes the computer instructions from the computer-readable storage medium to implement all or part of the steps of the method shown in the above-mentioned various embodiments of the present application.

[0167] In an exemplary embodiment, a computer-readable storage medium is also provided, in which a computer program is stored. The computer program is loaded and executed by a processor to implement all or part of the steps of the method shown in the above-mentioned embodiments of the present application.

[0168] A person skilled in the art will understand that all or part of the steps to implement the above embodiments may be accomplished by hardware or by instructing related hardware through a program. The above program may be stored in a computer-readable storage medium. The above storage medium may be a read-only memory, a disk or an optical disk, etc.

[0169] Those skilled in the art should be aware that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented with hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein the communication media include any media that facilitates the transmission of a computer program from one place to another. The storage medium can be any available medium that a general or special-purpose computer can access.

[0170] The above are only optional embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A method for managing electric vehicle power, characterized in that: The method is executed by a control system of an electric vehicle, wherein the electric vehicle is provided with a solar panel, a main battery and a backup battery, wherein the main battery is used to supply power to a driving system and various electrical devices of the electric vehicle; the backup battery is used to store the electric energy collected by the solar panel and to supply power to designated electrical devices in the electric vehicle, wherein the designated electrical devices are all or part of the electrical devices among the various electrical devices; The capacity of the backup battery is smaller than that of the main battery; The backup battery and the main battery are isolated by a heat insulating material; the method comprises: Controlling the solar panel to obtain electrical energy and charge the backup battery; When the electric vehicle is in a power-off state, in response to receiving a first instruction sent by a vehicle control application, the backup battery is started to control the electric vehicle to enter a power-on state; the vehicle control application is an application capable of controlling the electric vehicle; When the electric vehicle is in the powered-on state, in response to receiving a second instruction corresponding to the designated electrical device sent by the vehicle control application, the designated electrical device is controlled to execute a function corresponding to the second instruction.

2. The method according to claim 1, characterized in that The controlling the solar panel to obtain electric energy and charge the backup battery comprises: Acquiring the longitude, latitude and time information of the solar panel through the global positioning system of the electric vehicle; Determine the solar declination angle based on the latitude and the time information; determining an hour angle based on the longitude, the latitude, and the time information; Based on the latitude, the solar declination angle and the hour angle, the target angle of the solar panel is determined by the following formula 1: Formula 1: in, represents the latitude, δ represents the solar declination angle, ω represents the hour angle, and θ represents the target angle; Controlling the solar panel to adjust according to the target angle so that the solar panel is perpendicular to the sunlight to obtain solar energy; The solar energy is converted into the electrical energy through the solar panel and charged into the backup battery.

3. The method according to claim 2, characterized in that The method further comprises: Acquiring the output voltage, output current and environmental parameters of the solar panel through the sensor of the electric vehicle; Based on the output voltage, output current and environmental parameters of the solar panel, the orientation of the panel is adjusted by the MPPT algorithm.

4. The method according to claim 1, characterized in that The total capacity of the backup battery is less than 2 kWh; When the proportion of the power of the backup battery to the total capacity is lower than a first proportion threshold, the power supply of the backup battery to the designated electrical device is limited.

5. The method according to claim 4, characterized in that The method further comprises: When the proportion of the power of the backup battery to the total capacity is lower than a second proportion threshold, the backup battery is stopped from supplying power to non-essential power-consuming devices among the designated power-consuming devices; the second proportion threshold is lower than the first proportion threshold.

6. The method according to claim 1, characterized in that The method further comprises: When it is monitored that the charging current and / or charging voltage of the backup battery by the solar panel exceeds a safe range, the solar panel is stopped from charging the backup battery.

7. An electric vehicle power management device, characterized in that: The device comprises: A solar charging management module, used for controlling the solar panel to obtain electrical energy and charge the backup battery; a backup battery starting module, configured to start the backup battery in response to receiving a first instruction sent by a vehicle control application when the electric vehicle is in a power-off state, so as to control the electric vehicle to enter a power-on state; the vehicle control application is an application capable of controlling the electric vehicle; The function execution module is used to control the designated electrical device to execute the function corresponding to the second instruction in response to receiving a second instruction corresponding to the designated electrical device sent by the vehicle control application when the electric vehicle is in the power-on state.

8. A computer device, characterized in that: The computer device includes a processor and a memory, wherein instructions are stored in the memory, and the instructions are executed by the processor to implement the electric vehicle power management method according to any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that: The storage medium stores instructions, and the instructions are executed by a processor of a computer device to implement the electric vehicle power management method as described in any one of claims 1 to 6.

10. A computer program product, characterized in that The computer program product includes computer instructions, which are stored in a computer-readable storage medium; the computer instructions are read and executed by a processor of a computer device to implement the electric vehicle power management method as described in any one of claims 1 to 6.

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