Electric vehicle electricity storage distribution method and device and electric vehicle

Abstract

The invention discloses an electric vehicle electricity storage distribution method and device and an electric vehicle, and the method comprises the steps: in a driving state, obtaining the driving speed of the electric vehicle and the residual electric quantity of a solar cell; determining a driving speed threshold value, a first residual electric quantity threshold value and a second residual electric quantity threshold value, wherein the first residual electric quantity threshold value is greater than the second residual electric quantity threshold value; determining a power supply distribution strategy of the solar battery and the whole vehicle power battery based on the driving speed, the residual electric quantity, the driving speed threshold value, the first residual electric quantity threshold value and the second residual electric quantity threshold value; and based on the power supply distribution strategy, controlling the solar cell and / or the whole vehicle power battery to supply power to a high-voltage electric appliance, a low-voltage electric appliance and a driving motor of the electric vehicle. Through the technical scheme provided by the invention, the reasonability of power storage distribution of the electric vehicle can be improved.

Description

Technical Field

[0001] The present application belongs to the technical field of electric vehicle power management, and in particular, relates to an electric vehicle power storage distribution method, device and electric vehicle. Background Art

[0002] At present, consumers' demand for electric vehicles is growing, and the requirements for the driving range and charging convenience of electric vehicles are also getting higher and higher. Under this circumstance, the configuration of solar cells in electric vehicles has broad application prospects. When electric vehicles have both vehicle power batteries and solar cells, it is necessary to reasonably allocate the power output of solar cells and vehicle power batteries to extend the driving range of electric vehicles and ensure battery safety. Based on this, how to improve the rationality of electric vehicle power storage allocation is a technical problem that needs to be solved urgently. Summary of the invention

[0003] The embodiments of the present application provide a method and device for allocating power storage in an electric vehicle, and an electric vehicle, thereby improving the rationality of power storage allocation in the electric vehicle at least to a certain extent.

[0004] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by the practice of the present application.

[0005] According to a first aspect of an embodiment of the present application, a method for distributing power storage in an electric vehicle is provided, wherein the electric vehicle comprises a solar cell and a vehicle power battery, wherein the solar cell is charged by a solar energy conversion system arranged on the body of the electric vehicle, and wherein the method comprises: in a driving state, obtaining a driving speed of the electric vehicle and a remaining power of the solar cell; determining a driving speed threshold, a first remaining power threshold and a second remaining power threshold, wherein the first remaining power threshold is greater than the second remaining power threshold; determining a power supply distribution strategy for the solar cell and the vehicle power battery based on the driving speed, the remaining power, the driving speed threshold, the first remaining power threshold and the second remaining power threshold; and based on the power supply distribution strategy, controlling the solar cell and / or the vehicle power battery to supply power to high-voltage electrical appliances, low-voltage electrical appliances and a drive motor of the electric vehicle.

[0006] In some embodiments of the present application, based on the aforementioned scheme, if the driving speed of the electric vehicle is greater than or equal to the driving speed threshold, and the remaining power of the solar cell is greater than or equal to the first remaining power threshold, the vehicle power battery supplies power to the drive motor, and the solar cell supplies power to high-voltage electrical appliances and low-voltage electrical appliances.

[0007] In some embodiments of the present application, based on the aforementioned scheme, if the driving speed of the electric vehicle is less than the driving speed threshold, and the remaining power of the solar cell is greater than or equal to the first remaining power threshold, the vehicle power battery does not supply power, and the solar cell supplies power to the drive motor, high-voltage electrical appliances and low-voltage electrical appliances.

[0008] In some embodiments of the present application, based on the aforementioned scheme, if the remaining power of the solar cell is less than the first remaining power threshold and greater than the second remaining power threshold, the vehicle power battery supplies power to the drive motor and high-voltage electrical appliances, and the solar cell supplies power to the low-voltage electrical appliances.

[0009] In some embodiments of the present application, based on the aforementioned scheme, if the remaining power of the solar cell is less than or equal to the second remaining power threshold, the vehicle power battery supplies power to the drive motor, high-voltage electrical appliances and low-voltage electrical appliances, and the solar cell does not supply power.

[0010] In some embodiments of the present application, based on the aforementioned scheme, determining the driving speed threshold, the first remaining power threshold and the second remaining power threshold includes: obtaining the charging power of the solar cell; and determining the driving speed threshold, the first remaining power threshold and the second remaining power threshold based on the charging power.

[0011] In some embodiments of the present application, based on the aforementioned scheme, the driving speed threshold is positively correlated with the charging power.

[0012] In some embodiments of the present application, based on the aforementioned scheme, the first remaining power threshold and the second remaining power threshold are respectively negatively correlated with the charging power.

[0013] According to a second aspect of an embodiment of the present application, a power storage distribution device for an electric vehicle is provided, wherein the electric vehicle comprises a solar cell and a vehicle power battery, wherein the solar cell is charged by a solar energy conversion system arranged on the body of the electric vehicle, and the device comprises: an acquisition unit, for acquiring a driving speed of the electric vehicle and a remaining power of the solar cell in a driving state; a first determination unit, for determining a driving speed threshold, a first remaining power threshold and a second remaining power threshold, wherein the first remaining power threshold is greater than the second remaining power threshold; a second determination unit, for determining a power supply distribution strategy for the solar cell and the vehicle power battery based on the driving speed, the remaining power, the driving speed threshold, the first remaining power threshold and the second remaining power threshold; a control unit, for controlling the solar cell and / or the vehicle power battery to supply power to the high-voltage electrical appliances, the low-voltage electrical appliances and the drive motor of the electric vehicle based on the power supply distribution strategy.

[0014] According to a third aspect of an embodiment of the present application, a computer program product is provided, which includes computer instructions, which are stored in a computer-readable storage medium and are suitable for being read and executed by a processor, so that a computer device having the processor executes to implement the operations performed by the method described in any one of the embodiments of the first aspect above.

[0015] According to a fourth aspect of an embodiment of the present application, a computer-readable storage medium is provided, in which at least one computer program instruction is stored. The at least one computer program instruction is loaded and executed by a processor to implement the operations performed by the method described in any one of the embodiments of the first aspect above.

[0016] According to a fifth aspect of an embodiment of the present application, an electric vehicle is provided, comprising one or more processors and one or more memories, wherein at least one computer program instruction is stored in the one or more memories, and the at least one computer program instruction is loaded and executed by the one or more processors to implement the method described in any embodiment of the first aspect above.

[0017] Based on the technical solution proposed in this application, by obtaining the driving speed of the electric vehicle and the remaining power of the solar cell, and setting a reasonable driving speed threshold, a first remaining power threshold, and a second remaining power threshold as a basis, a power supply distribution strategy is accurately formulated, which not only meets the power demand of the electric vehicle under different driving conditions, but also efficiently utilizes solar energy. In terms of power supply control, the power supply distribution strategy provides stable power supply to high-voltage electrical appliances, low-voltage electrical appliances, and drive motors by reasonably allocating the power output of solar cells and vehicle power batteries, which not only prolongs the battery life, but also improves the rationality of power storage distribution.

[0018] 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

[0019] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0020] Figure 1 A schematic diagram of an electric vehicle in one embodiment of the present application is shown;

[0021] Figure 2A flow chart showing a method for distributing electric power storage in an electric vehicle in one embodiment of the present application is shown;

[0022] Figure 3 A block diagram of an electric vehicle power storage distribution device in one embodiment of the present application is shown;

[0023] Figure 4 A schematic structural diagram of an electric vehicle in one embodiment of the present application is shown. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0025] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0026] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities may be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0027] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

[0028] It should be noted that the "multiple" mentioned in this article refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0029] It should also be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the objects used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those shown or described.

[0030] In order to make those skilled in the art better understand the present application, Figure 1 The electric vehicle involved in the present application is briefly described.

[0031] See also Figure 1 , showing a schematic diagram of an electric car in one embodiment of the present application.

[0032] like Figure 1 As shown, the electric vehicle 100 described in the present application may include a solar energy conversion system, a power storage system, and a power storage distribution system.

[0033] The solar energy conversion system may include a solar photovoltaic panel 101, an electric motor 102, a telescopic rod 103 and an integrated roof 104. Figure 1 As shown, the electric motor 102 can be arranged at the bottom of the solar photovoltaic panel 101 and connected between the solar photovoltaic panel 101 and the integrated roof 104 through the telescopic rod 103. Based on this design, the solar photovoltaic panel 101 can be flexibly rotated within the range of 0° to 90° to ensure that the solar photovoltaic panel 101 can always remain perpendicular to the sunlight in different time periods or different seasons, thereby improving the efficiency of capturing sunlight and enabling the solar photovoltaic panel 101 to absorb more solar energy and convert it into electrical energy; in addition, this design also enhances the adaptability and flexibility of the solar photovoltaic panel 101, enabling it to cope with various weather and lighting conditions, thereby improving the stability and reliability of the entire solar energy conversion system.

[0034] The power storage system may include a vehicle power battery 105, a solar cell 106 and a battery monitoring module (not shown in the figure). The vehicle power battery 105 and the solar electric car 106 can provide power for the driving of the electric car 100 and the operation of the electrical appliances in the car according to the power supply distribution strategy. The battery monitoring module can monitor the current flowing into and out of the solar cell and the amount of remaining power in the solar cell.

[0035] The power storage and distribution system may include a control device (not shown in the figure), which can determine a suitable power supply distribution strategy based on the current driving state of the electric vehicle 100, the usage of the vehicle's electrical appliances and the remaining power of the solar cell 106, and control the vehicle's power battery 105 and the solar cell 106 to access the power supply line of the electrical appliances.

[0036] The solar photovoltaic panel can use perovskite or flexible organic photovoltaic materials. The perovskite or flexible organic photovoltaic material, with its excellent light absorption ability and efficient charge transfer characteristics, can significantly improve the solar energy conversion efficiency of the solar energy conversion system, thereby increasing the charging power of the solar cell; it can also enable the solar energy conversion system to effectively perform solar energy conversion work in weaker lighting environments (such as weak light in winter or rainy weather), thereby broadening the applicable scenarios of the solar energy conversion system.

[0037] Next, this application will elaborate on the proposed electric vehicle power storage distribution method.

[0038] Reference Figure 2 , shows a flow chart of an electric vehicle power storage allocation method in one embodiment of the present application, wherein the electric vehicle includes a solar cell and a vehicle power battery, the solar cell is charged by a solar energy conversion system configured on the body of the electric vehicle, and the electric vehicle power storage allocation method can be executed by a device with a computing and processing function, with reference to Figure 2 As shown, the electric vehicle power storage distribution method at least includes steps 210 to 240, which are described in detail as follows:

[0039] Step 210, in a driving state, obtaining a driving speed of the electric vehicle and a remaining power of the solar cell;

[0040] Step 220, determining a driving speed threshold, a first remaining power threshold, and a second remaining power threshold, wherein the first remaining power threshold is greater than the second remaining power threshold;

[0041] Step 230, determining a power supply distribution strategy for the solar cell and the vehicle power battery based on the driving speed, the remaining power, the driving speed threshold, the first remaining power threshold, and the second remaining power threshold;

[0042] Step 240: Based on the power supply distribution strategy, control the solar cell and / or the vehicle power battery to supply power to the high-voltage electrical appliances, low-voltage electrical appliances and drive motor of the electric vehicle.

[0043] In the technical solution proposed in this application, the battery power of electric vehicles is intelligently managed, which significantly improves the efficiency of battery power usage and the range of electric vehicles. During driving, the driving speed of the electric vehicle and the remaining power of the solar cell can be monitored in real time, providing a data basis for intelligent allocation of the battery power of the electric vehicle.

[0044] The technical solution proposed in this application can dynamically adjust the power supply ratio of solar cells and vehicle power batteries according to the needs of electric vehicles in different situations by setting a driving speed threshold, a first remaining power threshold, and a second remaining power threshold. This power supply allocation strategy can not only maximize the use of solar energy to reduce the dependence of electric vehicles on vehicle power batteries, but also ensure that electric vehicles can control solar cells and vehicle power batteries to stably supply power to high-voltage electrical appliances, low-voltage electrical appliances and drive motors at different driving speeds. Overall, this solution effectively improves the power utilization efficiency of electric vehicles and extends the driving range of electric vehicles by reasonably allocating the battery power of electric vehicles, providing strong support for achieving green travel and energy conservation and emission reduction.

[0045] In the above step 240, the power supply allocation strategy may specifically include: if the driving speed of the electric vehicle is greater than or equal to the driving speed threshold, and the remaining power of the solar cell is greater than or equal to the first remaining power threshold, then the vehicle power battery supplies power to the drive motor, and the solar cell supplies power to high-voltage electrical appliances and low-voltage electrical appliances.

[0046] It is understandable that the higher the speed of an electric vehicle, the greater the power consumption per 100 kilometers. If the speed of the electric vehicle is greater than or equal to the preset speed threshold, the drive motor consumes power faster. In this case, no matter what state the remaining power of the solar cell is in, it is difficult to support the speed at which the drive motor consumes power. Based on this, in order to avoid the situation where the solar cell is consumed too quickly and power is not fed, it is necessary to use a vehicle power battery with a storage capacity far greater than that of the solar cell to provide the drive motor with the required power, ensuring that the drive motor can maintain efficient operation to meet the needs of high-speed driving.

[0047] Furthermore, since the remaining power of the solar cell is also greater than or equal to the first remaining power threshold, it can meet the power demand of high-voltage electrical appliances (such as air-conditioning compressors and battery thermal management systems) and low-voltage electrical appliances (such as lighting systems and entertainment systems) in electric vehicles. Based on this, the present application uses the solar cell to power high-voltage electrical appliances and low-voltage electrical appliances. In this way, electric vehicles can make full use of the power of solar cells, reduce the load of the vehicle's power battery, and achieve a reasonable distribution of electric vehicle power storage. Thereby extending the service life of the vehicle's power battery, and at the same time ensuring that electric vehicles can obtain a stable and sufficient power supply under different driving conditions, improving the overall energy efficiency of electric vehicles and the user's driving experience.

[0048] In a specific embodiment, for example, when the driving speed of the electric vehicle is higher than 40 km / h (i.e., the driving speed threshold) and the remaining power of the solar cell is still greater than 40% of its total power (i.e., the first remaining power threshold), the circuit for the solar cell to supply power to the drive motor can be controlled to be disconnected, while the power supply lines of high-voltage electrical appliances and low-voltage electrical appliances such as the air-conditioning compressor and the battery thermal management system are still normally connected to the solar cell and powered by the solar cell; the drive motor is directly powered by the vehicle's power battery.

[0049] In one embodiment of the present application, the power supply distribution strategy may further specifically include: if the driving speed of the electric vehicle is less than a driving speed threshold, and the remaining power of the solar cell is greater than or equal to a first remaining power threshold, the vehicle power battery does not supply power, and the solar cell supplies power to the drive motor, high-voltage electrical appliances and low-voltage electrical appliances.

[0050] In the present application, if the driving speed of the electric vehicle is less than the set driving speed threshold, it means that the driving motor consumes electricity slowly when driving the electric vehicle. In this case, when the remaining power of the solar cell is sufficient (i.e., greater than or equal to the first remaining power threshold), the remaining power of the solar cell can support the speed at which the driving motor consumes electricity. Based on this, the driving motor can be powered by solar cells first, and high-voltage electrical appliances and low-voltage electrical appliances can also be powered at the same time. In this way, not only can the power consumption of the whole vehicle power battery be effectively reduced, but also the loss of the whole vehicle power battery due to frequent charging and discharging can be reduced, thereby extending the service life of the whole vehicle power battery. In addition, when driving at a low speed, using solar cells as the main power supply battery reduces travel costs and improves the user experience. In summary, the scheme has significant advantages in improving the rationality of battery power distribution, extending the service life of the whole vehicle power battery, and improving the user experience.

[0051] In a specific embodiment, when the driving speed of the electric vehicle is less than 40 km / h (i.e., the driving speed threshold) and the remaining power of the solar cell is greater than 40% of its total power (i.e., the first remaining power threshold), the solar cell can power the drive motor, and can also power high-voltage electrical appliances such as the air-conditioning compressor and the battery thermal management system. In addition, low-voltage electrical appliances can also preferentially draw power from the solar cell, thereby saving power in the vehicle's power battery.

[0052] In one embodiment of the present application, the power supply allocation strategy may further specifically include: if the remaining power of the solar cell is less than a first remaining power threshold and greater than a second remaining power threshold, the vehicle power battery supplies power to the drive motor and high-voltage electrical appliances, and the solar cell supplies power to the low-voltage electrical appliances.

[0053] In the present application, when the remaining power of the solar cell is between the first remaining power threshold and the second remaining power threshold, no matter how fast the electric vehicle is traveling, the solar cell cannot provide sufficient power for the drive motor to drive the electric vehicle. At the same time, due to the insufficient remaining power of the solar cell, the solar cell cannot meet the power demand of the high-voltage electrical appliances. Based on this, the present application uses the vehicle power battery to power the drive motor and the high-voltage electrical appliances, ensuring that the electric vehicle has enough power during driving and the normal operation of the high-voltage electrical appliances (such as air-conditioning compressors and battery thermal management systems). In addition, since the low-voltage electrical appliances consume power at a slower rate, the solar cell can provide power for the low-voltage electrical appliances (such as lighting systems and entertainment systems), avoiding the excessive consumption of power caused by using only the vehicle power battery for power supply, and reducing the loss of the vehicle power battery. This power supply allocation strategy can not only reasonably allocate the battery power, improve the utilization efficiency of the battery power, but also extend the service life of the vehicle power battery, and also ensure that the electric vehicle can maintain stable performance under different battery power states, enhancing the user's driving experience.

[0054] In a specific embodiment, when the remaining power of the solar cell is less than 40% of its total power (i.e., the first remaining power threshold) and greater than 10% of its total power (i.e., the second remaining power threshold), the circuits that power the drive motor and all high-voltage electrical appliances supplied by the solar cell can be controlled to be disconnected, and the high-voltage electrical appliances and the drive motor can be powered by the vehicle power battery; and the solar cell can continue to power the low-voltage electrical appliances.

[0055] In one embodiment of the present application, the power supply allocation strategy may further specifically include: if the remaining power of the solar cell is less than or equal to a second remaining power threshold, the vehicle power battery supplies power to the drive motor, high-voltage electrical appliances and low-voltage electrical appliances, and the solar cell does not supply power.

[0056] In the present application, when the remaining power of the solar cell drops below the second remaining power threshold, it means that the power in the solar cell cannot meet the power demand of the low-voltage electrical appliances. In this case, the external power supply of the solar cell can be stopped, and the power battery of the whole vehicle provides the required power for the drive motor, high-voltage electrical appliances and low-voltage electrical appliances. The advantage is that the solar cell can be prevented from being damaged due to excessive discharge, thereby extending the service life of the solar cell. Through this power distribution strategy, the power distribution between the solar cell and the power battery of the whole vehicle can be reasonably adjusted according to the remaining power of the solar cell, avoiding the situation where the power supply is interrupted or the performance of the electric vehicle is degraded due to insufficient power of the solar cell. In addition, the power distribution strategy can also reduce the loss of the solar cell caused by excessive discharge, which helps to extend the service life of the solar cell and reduce maintenance costs. In summary, the strategy performs well in ensuring the performance of electric vehicles, improving the rationality of power distribution, and extending the service life of solar cells.

[0057] In a specific embodiment, when the remaining power of the solar cell is less than 10% of its total power (i.e., the second remaining power threshold), all power supply lines of the solar cell are disconnected, and the vehicle power battery supplies power to the drive motor, high-voltage electrical appliances and low-voltage electrical appliances; at the same time, continuous charging is performed through the solar energy conversion system. During this period, when the solar cell power is replenished to the range of 10% to 40% (i.e., the first remaining power threshold), the solar cell can be controlled to start supplying power to the low-voltage electrical appliances; when the solar cell is charged to more than 40%, the solar cell can be controlled to start supplying power to the high-voltage electrical appliances.

[0058] In the above step 220, the determination of the driving speed threshold, the first remaining power threshold and the second remaining power threshold may be specifically performed according to the following steps 221 to 222:

[0059] Step 221, obtaining the charging power of the solar cell.

[0060] Step 222: Based on the charging power, determine a driving speed threshold, a first remaining power threshold, and a second remaining power threshold.

[0061] In the present application, the charging power of the solar cell can be inferred based on the current environmental data. Specifically, the solar lighting conditions are different at different times, in different weather conditions, and in different seasons. Therefore, the solar energy conversion system that obtains solar energy and converts it into electrical energy will be affected by environmental data, thereby affecting the charging power of the solar cell. Based on this, the charging power of the solar cell can be inferred based on the current environmental data.

[0062] In the present application, the charging power of the solar cell can also be directly calculated based on the power data detected by the power sensor. Specifically, the present application does not make too many restrictions on this.

[0063] In the present application, the driving speed threshold may be positively correlated with the charging power, that is, the higher the charging power, the higher the driving speed threshold;

[0064] It is understandable that a higher charging power means that the solar cell can charge more electricity in a shorter time. When the charging power is higher, the solar cell will obtain more electricity in a short time, allowing the solar cell to provide higher power output support when the electric vehicle is driving at high speed. In this case, the driving speed threshold of the electric vehicle can be set higher without worrying about the problem of the remaining power of the solar cell being consumed too quickly.

[0065] In the present application, the first remaining power threshold and the second remaining power threshold are respectively negatively correlated with the charging power, that is, the higher the charging power, the lower the first remaining power threshold and the second remaining power threshold.

[0066] The higher the charging power, the faster the solar cell charges. Even if the remaining power of the solar cell is low, it can be quickly charged to the power threshold required for the electric vehicle to travel, thereby meeting the power demand of the electric vehicle. Therefore, when the charging power is higher, the first remaining power threshold (power limit for triggering certain energy saving measures) and the second remaining power threshold (minimum power limit for starting charging) can be set lower. This setting allows electric vehicles to use the capacity of solar cells in a wider range, thereby improving the utilization efficiency of solar cells. At the same time, because of the rapid energy replenishment capability of high-power charging, it also reduces the risk of vehicle operation being affected by low power. Through the above scheme, the utilization rate of solar cell power by electric vehicles can be improved, the power consumption of the vehicle's power battery can be reduced, and the rationality of battery power distribution can be improved. In addition, by making full use of the power of solar cells, the cost of user travel can be reduced and the user experience can be improved.

[0067] Based on the technical solution proposed in this application, by obtaining the driving speed of the electric vehicle and the remaining power of the solar cell, and setting a reasonable driving speed threshold, a first remaining power threshold, and a second remaining power threshold as a basis, a power supply distribution strategy is accurately formulated, which not only meets the power demand of the electric vehicle under different driving conditions, but also efficiently utilizes solar energy. In terms of power supply control, the power supply distribution strategy provides stable power supply to high-voltage electrical appliances, low-voltage electrical appliances, and drive motors by reasonably allocating the power output of solar cells and vehicle power batteries, which not only prolongs the battery life, but also improves the rationality of power storage distribution.

[0068] The following describes an apparatus embodiment of the present application, which can be used to execute the electric vehicle power storage allocation method in the above-mentioned embodiment of the present application. For details not disclosed in the apparatus embodiment of the present application, please refer to the embodiment of the electric vehicle power storage allocation method in the above-mentioned embodiment of the present application.

[0069] See also Figure 3 , a block diagram of an electric vehicle power storage and distribution device in one embodiment of the present application is presented, wherein the electric vehicle includes solar cells and a vehicle power battery, and the solar cells are charged by a solar energy conversion system configured on the body of the electric vehicle.

[0070] like Figure 3 As shown, the electric vehicle power storage distribution device 300 according to the embodiment of the present application includes: an acquisition unit 301, a first determination unit 302, a second determination unit 303 and a control unit 304.

[0071] Among them, the acquisition unit 301 is used to obtain the driving speed of the electric vehicle and the remaining power of the solar cell in the driving state; the first determination unit 302 is used to determine the driving speed threshold, the first remaining power threshold and the second remaining power threshold, wherein the first remaining power threshold is greater than the second remaining power threshold; the second determination unit 303 is used to determine the power supply distribution strategy of the solar cell and the vehicle power battery based on the driving speed, the remaining power, the driving speed threshold, the first remaining power threshold and the second remaining power threshold; the control unit 304 is used to control the solar cell and / or the vehicle power battery to supply power to the high-voltage electrical appliances, low-voltage electrical appliances and drive motor of the electric vehicle based on the power supply distribution strategy.

[0072] In some embodiments of the present application, based on the aforementioned scheme, the power supply distribution strategy includes: if the driving speed of the electric vehicle is greater than or equal to a driving speed threshold, and the remaining power of the solar cell is greater than or equal to a first remaining power threshold, then the vehicle power battery supplies power to the drive motor, and the solar cell supplies power to high-voltage electrical appliances and low-voltage electrical appliances.

[0073] In some embodiments of the present application, based on the aforementioned scheme, the power supply distribution strategy also includes: if the driving speed of the electric vehicle is less than a driving speed threshold, and the remaining power of the solar cell is greater than or equal to a first remaining power threshold, then the vehicle power battery does not supply power, and the solar cell supplies power to the drive motor, high-voltage electrical appliances and low-voltage electrical appliances.

[0074] In some embodiments of the present application, based on the aforementioned scheme, the power supply allocation strategy also includes: if the remaining power of the solar cell is less than a first remaining power threshold and greater than a second remaining power threshold, the vehicle power battery supplies power to the drive motor and high-voltage electrical appliances, and the solar cell supplies power to the low-voltage electrical appliances.

[0075] In some embodiments of the present application, based on the aforementioned scheme, the power supply allocation strategy also includes: if the remaining power of the solar cell is less than or equal to a second remaining power threshold, the vehicle power battery supplies power to the drive motor, high-voltage electrical appliances and low-voltage electrical appliances, and the solar cell does not supply power.

[0076] In some embodiments of the present application, based on the aforementioned scheme, the first determination unit 302 is configured to: obtain the charging power of the solar cell; and determine a driving speed threshold, a first remaining power threshold, and a second remaining power threshold based on the charging power.

[0077] In some embodiments of the present application, based on the aforementioned scheme, the driving speed threshold is positively correlated with the charging power.

[0078] In some embodiments of the present application, based on the aforementioned scheme, the first remaining power threshold and the second remaining power threshold are respectively negatively correlated with the charging power.

[0079] Based on the same inventive concept, an embodiment of the present application provides a computer program product, which includes computer instructions, which are stored in a computer-readable storage medium and are suitable for being read and executed by a processor, so that a computer device with the processor executes to implement the operations performed by the method described above.

[0080] Based on the same inventive concept, an embodiment of the present application provides a computer-readable storage medium, in which at least one computer program instruction is stored. The at least one computer program instruction is loaded and executed by a processor to implement the operations performed by the method described above.

[0081] Based on the same inventive concept, the present application embodiment also provides an electric vehicle, referring to Figure 4 , shows a schematic diagram of the structure of an electric vehicle in an embodiment of the present application, wherein the electric vehicle includes one or more memories 404, one or more processors 402, and at least one computer program (computer program instruction) stored in the memories 404 and executable on the processors 402, and when the processor 402 executes the computer program, the method described above is implemented.

[0082] Among them, Figure 4In the embodiment of the present invention, a bus architecture (represented by bus 400) is shown, which may include any number of interconnected buses and bridges, and bus 400 links various circuits including one or more processors represented by processor 402 and memory represented by memory 404. Bus 400 may also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. Bus interface 405 provides an interface between bus 400 and receiver 401 and transmitter 403. Receiver 401 and transmitter 403 may be the same element, namely a transceiver, providing a unit for communicating with various other devices over a transmission medium. Processor 402 is responsible for managing bus 400 and general processing, while memory 404 may be used to store data used by processor 402 when performing operations.

[0083] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored as one or more instructions or codes on a computer-readable medium or transmitted via a computer-readable medium. Other examples and implementations are within the scope and spirit of the present application and the appended claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hard wiring, or a combination of any of these. In addition, each functional unit may be integrated into a processing unit, each unit may exist physically separately, or two or more units may be integrated into one unit.

[0084] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0085] The units described as separate components may or may not be physically separated, and the components of the control device may or may not be physical units, that is, they may be located in one place or distributed in multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0086] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly or all or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, disk or optical disk, etc., which can store computer program instructions.

[0087] The above description is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A method for distributing electric vehicle power storage, characterized in that: The electric vehicle comprises a solar cell and a vehicle power battery, the solar cell is charged by a solar energy conversion system configured on the body of the electric vehicle, and the method comprises: In a driving state, obtaining a driving speed of the electric vehicle and a remaining power of the solar cell; Determining a driving speed threshold, a first remaining power threshold, and a second remaining power threshold, wherein the first remaining power threshold is greater than the second remaining power threshold; Determining a power supply distribution strategy for the solar cell and the vehicle power battery based on the driving speed, the remaining power, the driving speed threshold, the first remaining power threshold, and the second remaining power threshold; Based on the power supply distribution strategy, the solar cell and / or the vehicle power battery is controlled to supply power to the high-voltage electrical appliances, low-voltage electrical appliances and drive motor of the electric vehicle.

2. The method according to claim 1, characterized in that The power supply allocation strategy includes: If the driving speed of the electric vehicle is greater than or equal to the driving speed threshold, and the remaining power of the solar cell is greater than or equal to the first remaining power threshold, the vehicle power battery supplies power to the drive motor, and the solar cell supplies power to high-voltage electrical appliances and low-voltage electrical appliances.

3. The method according to claim 1, characterized in that The power distribution strategy also includes: If the driving speed of the electric vehicle is less than the driving speed threshold and the remaining power of the solar cell is greater than or equal to the first remaining power threshold, the vehicle power battery does not supply power, and the solar cell supplies power to the drive motor, high-voltage electrical appliances and low-voltage electrical appliances.

4. The method according to claim 1, characterized in that: The power distribution strategy also includes: If the remaining power of the solar cell is less than the first remaining power threshold and greater than the second remaining power threshold, the vehicle power battery supplies power to the drive motor and high-voltage electrical appliances, and the solar cell supplies power to the low-voltage electrical appliances.

5. The method according to claim 1, characterized in that: The power distribution strategy also includes: If the remaining power of the solar cell is less than or equal to the second remaining power threshold, the vehicle power battery supplies power to the drive motor, high-voltage electrical appliances and low-voltage electrical appliances, and the solar cell does not supply power.

6. The method according to any one of claims 1 to 5, characterized in that: The determining of the driving speed threshold, the first remaining power threshold and the second remaining power threshold comprises: Obtaining the charging power of the solar cell; Based on the charging power, a driving speed threshold, a first remaining power threshold and a second remaining power threshold are determined.

7. The method according to claim 6, characterized in that The driving speed threshold is positively correlated with the charging power.

8. The method according to claim 6, characterized in that The first remaining power threshold and the second remaining power threshold are respectively negatively correlated with the charging power.

9. An electric vehicle power storage and distribution device, characterized in that: The electric vehicle comprises a solar cell and a vehicle power battery, the solar cell is charged by a solar energy conversion system arranged on the body of the electric vehicle, and the device comprises: An acquisition unit, used for acquiring the driving speed of the electric vehicle and the remaining power of the solar cell when the electric vehicle is in driving state; A first determining unit, configured to determine a driving speed threshold, a first remaining power threshold, and a second remaining power threshold, wherein the first remaining power threshold is greater than the second remaining power threshold; a second determining unit, configured to determine a power supply distribution strategy of the solar cell and the vehicle power battery based on the driving speed, the remaining power, the driving speed threshold, the first remaining power threshold, and the second remaining power threshold; A control unit is used to control the solar cell and / or the vehicle power battery to supply power to the high-voltage electrical appliances, low-voltage electrical appliances and drive motor of the electric vehicle based on the power supply distribution strategy.

10. An electric vehicle, characterized in that: The electric vehicle comprises one or more processors and one or more memories, wherein at least one program code is stored in the one or more memories, and the at least one program code is loaded and executed by the one or more processors to implement the method according to any one of claims 1 to 8.

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