Electric vehicle power storage distribution method, device and electric vehicle

Abstract

The present application discloses a method, device, and electric vehicle for distributing power storage in an electric vehicle. The method comprises: obtaining the driving speed of the electric vehicle and the remaining power of the solar cell in a driving state; 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 controlling 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. The technical solution provided by the present application can improve the rationality of power storage distribution in electric vehicles.

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 and distribution method, device and electric vehicle. Background Art

[0002] Currently, consumer demand for electric vehicles is growing, along with increasing demands for longer driving range and easier charging. In this context, equipping electric vehicles with solar cells offers broad application prospects. Given that electric vehicles incorporate both a power battery and solar cells, rationally allocating the power output of these batteries is essential for extending the vehicle's driving range and ensuring battery safety. Therefore, improving the rationality of energy storage allocation in electric vehicles is a pressing technical challenge. Summary of the Invention

[0003] The embodiments of the present application provide a method and device for distributing power storage in an electric vehicle, and an electric vehicle, thereby improving the rationality of power storage distribution 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 practice of the present application.

[0005] According to a first aspect of an embodiment of the present application, a method for distributing electricity storage in an electric vehicle is provided, wherein the electric vehicle includes a solar cell and a vehicle power battery, and the solar cell is charged by a solar energy conversion system configured on the body of the electric vehicle. The method includes: 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; based on the driving speed, the remaining power, the driving speed threshold, the first remaining power threshold and the second remaining power threshold, determining a power supply distribution strategy for the solar cell and the vehicle power battery; based on the power supply distribution strategy, controlling 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.

[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, 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.

[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 solution, the driving speed threshold is positively correlated with the charging power.

[0012] In some embodiments of the present application, based on the aforementioned solution, 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 and distribution device for an electric vehicle is provided, wherein the electric vehicle includes a solar cell and a vehicle power battery, and the solar cell is charged by a solar energy conversion system configured on the body of the electric vehicle. The device includes: an acquisition unit for acquiring the driving speed of the electric vehicle and the remaining power of the solar cell when the vehicle is driving; 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, low-voltage electrical appliances and 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 reasonable driving speed thresholds, first remaining power thresholds, and second remaining power thresholds as a basis, a precise power distribution strategy is formulated. This not only meets the power requirements of the electric vehicle under different driving conditions, but also efficiently utilizes solar energy. In terms of power supply control, the power distribution strategy provides stable power to high-voltage electrical appliances, low-voltage electrical appliances, and the drive motor by rationally allocating the power output of the solar cell and the vehicle's power battery, thereby extending the battery life and improving 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 accompanying drawings are incorporated into and constitute a part of the specification, illustrating embodiments consistent with the present application and, together with the specification, explaining the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can derive other drawings based on these drawings without inventive effort. 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 vehicle power storage in one embodiment of the present application is shown;

[0022] Figure 3 A block diagram of an electric vehicle power storage and 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 this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts 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 so as to provide a full understanding of the embodiments of the present application. However, it will be appreciated by those skilled in the art 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, implementations 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 separate entities. That is, these functional entities may be implemented in software, 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 for illustrative purposes only and do not necessarily include all contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may be decomposed, while others may be combined or partially combined. Therefore, the actual execution order may vary depending on the actual situation.

[0028] It should be noted that the term "plurality" used in this document refers to two or more. "And / or" describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A alone, A and B together, or B alone. The character " / " generally indicates an "or" relationship between the associated objects.

[0029] It should also be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that shown or described.

[0030] In order to make those skilled in the art better understand this application, Figure 1 The electric vehicle involved in this 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, an electricity storage system, and an electricity 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 a 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, and 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 vehicle 106 can provide power for the driving of the electric vehicle 100 and the operation of the electrical appliances in the vehicle 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 status 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 solar cell 106 to connect to the power supply line of the corresponding 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 winter light 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 in detail.

[0038] Reference Figure 2 , shows a flow chart of an electric vehicle power storage distribution method in one embodiment of the present application, wherein the electric vehicle includes solar cells and a vehicle power battery, the solar cells are charged by a solar energy conversion system configured on the body of the electric vehicle, and the electric vehicle power storage distribution 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 includes at least steps 210 to 240, which are described in detail as follows:

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

[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: Determine a power 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 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] The technical solution proposed in this application significantly improves the efficiency of electric vehicle battery usage and range by intelligently managing the battery charge of electric vehicles. During driving, the vehicle's speed and the remaining charge of the solar cell can be monitored in real time, providing a data basis for intelligently allocating the battery charge 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 scenarios by setting a driving speed threshold, a first remaining power threshold, and a second remaining power threshold. This power distribution strategy can not only maximize the use of solar energy to reduce the electric vehicle's dependence on the vehicle's power battery, but also ensure that the electric vehicle can control the 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 by reasonably allocating the battery power of electric vehicles, extends the driving range of electric vehicles, and provides strong support for achieving green travel and energy conservation and emission reduction.

[0045] In the above step 240, the power supply distribution 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 the high-voltage electrical appliances and the low-voltage electrical appliances.

[0046] It is understandable that the higher the speed of an electric vehicle, the greater its power consumption per 100 kilometers. If the speed of the electric vehicle is greater than or equal to a preset speed threshold, the drive motor consumes power more quickly. In this case, regardless of the remaining power in the solar cell, 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 supplied, it is necessary to use the vehicle's power battery, which has a much greater storage capacity than the solar cell, to provide the required power to the drive motor, 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 power storage in electric vehicles. This extends the service life of the vehicle's power battery, and at the same time ensures that electric vehicles can obtain a stable and sufficient power supply under different driving conditions, thereby 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 power the drive motor can be controlled to be disconnected, while the power supply lines of high-voltage electrical appliances such as the air-conditioning compressor and the battery thermal management system and low-voltage electrical appliances 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, 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.

[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 (that is, 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 the solar cell 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 low speed, using solar cells as the main power supply battery reduces travel costs and improves the user experience. In summary, this solution 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 an 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 high-voltage electrical appliances such as the air-conditioning compressor and the battery thermal management system. In addition, low-voltage electrical appliances can also take power from the solar cell first, thereby saving the power of the vehicle's power battery.

[0052] In one embodiment of the present application, the power supply distribution 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 high-voltage electrical appliances, ensuring that the electric vehicle has enough power during driving and the normal operation of high-voltage electrical appliances (such as air-conditioning compressors and battery thermal management systems). In addition, since low-voltage electrical appliances consume power at a slower rate, solar cells can provide power for low-voltage electrical appliances (such as lighting systems and entertainment systems), avoiding the excessive consumption of power by using only the vehicle power battery, thereby reducing the loss of the vehicle power battery. This power distribution strategy can not only reasonably distribute battery power, improve the utilization efficiency of battery power, but also extend the service life of the vehicle power battery, and ensure that the electric vehicle can maintain stable performance under different battery power states, thereby 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 disconnect, and the high-voltage electrical appliances and the drive motor can be powered by the vehicle's power battery; while the solar cell can continue to power the low-voltage electrical appliances.

[0055] In one embodiment of the present application, the power supply distribution 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 it can avoid damage to the solar cell 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 power outage or performance degradation of the electric vehicle 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, help 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 is used to power the drive motor, high-voltage electrical appliances and low-voltage electrical appliances; at the same time, continuous charging is carried out through the solar energy conversion system. During this period, when the power of the solar cell is replenished to the range of 10% to 40% (i.e., the first remaining power threshold), the solar cell can be controlled to start powering the low-voltage electrical appliances; when the solar cell is charged to more than 40%, the solar cell can be controlled to start powering 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 can be specifically performed according to the following steps 221 to 222:

[0059] Step 221: Obtain the charging power of the solar cell.

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

[0061] In this application, the charging power of the solar cell can be estimated based on the current environmental data. Specifically, the solar lighting conditions vary at different times, in different weather conditions, and in different seasons. Therefore, the solar energy conversion system's conversion of solar energy into electrical energy will be affected by the environmental data, thereby affecting the charging power of the solar cell. Based on this, the charging power of the solar cell can be estimated 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] As you can understand, a higher charging power means the solar cell can charge more energy in a shorter time. When the charging power is higher, the solar cell can draw more energy in a shorter period of time, allowing it to provide higher power output support when the electric vehicle is traveling at high speeds. In this case, the electric vehicle's speed threshold can be set higher without worrying about the solar cell's remaining power being depleted 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 (the power limit used to trigger certain energy-saving measures) and the second remaining power threshold (the minimum power limit used to start charging) can be set lower. This setting allows electric vehicles to use the capacity of solar cells over a wider range, thereby improving the utilization efficiency of solar cells. At the same time, due to the rapid energy replenishment capability of high-power charging, the risk of vehicle operation being affected by low power is reduced. Through the above solution, 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 reasonable driving speed thresholds, first remaining power thresholds, and second remaining power thresholds as a basis, a precise power distribution strategy is formulated. This not only meets the power requirements of the electric vehicle under different driving conditions, but also efficiently utilizes solar energy. In terms of power supply control, the power distribution strategy provides stable power to high-voltage electrical appliances, low-voltage electrical appliances, and the drive motor by rationally allocating the power output of the solar cell and the vehicle's power battery, thereby extending the battery life and improving the rationality of power storage distribution.

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

[0069] See also Figure 3 , presents a block diagram of an electric vehicle power storage and distribution device in one embodiment of the present application, 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 an 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 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 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 distribution 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 distribution 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 solution, the driving speed threshold is positively correlated with the charging power.

[0078] In some embodiments of the present application, based on the aforementioned solution, 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, which stores at least one computer program instruction. 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 also provides an electric vehicle, referring to Figure 4 , shows a schematic structural diagram 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 memory 404 and executable on the processor 402. 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. Bus 400 may include any number of interconnected buses and bridges, and bus 400 links together various circuits including one or more processors represented by processor 402 and memory represented by memory 404. Bus 400 may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further 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 component, namely a transceiver, which provides 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 or transmitted via a computer-readable medium. Other examples and implementations are within the scope and spirit of this 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, hardwiring, or a combination of any of these. Furthermore, the functional units may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single 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 exemplary. For example, the division of the units can be a logical function division. In actual implementation, there may be other division methods, such as 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 separate, 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 across 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 is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk, etc. Various media that can store computer program instructions.

[0087] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of the claims of the present application.

Claims

1. A method for distributing electric power storage in an electric vehicle, characterized in that: The electric vehicle includes solar cells and a vehicle power battery, the solar cells are charged by a solar energy conversion system configured on the body of the electric vehicle, and the method includes: In a driving state, obtaining a driving speed of the electric vehicle and a remaining power of the solar cell; Obtaining the charging power of the solar cell; determining a driving speed threshold, a first remaining power threshold, and a second remaining power threshold based on the charging power, 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, controlling 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; 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, 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; 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.

2. 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.

3. 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 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.

4. The method according to claim 1, wherein The driving speed threshold is positively correlated with the charging power.

5. The method according to claim 1, wherein The first remaining power threshold and the second remaining power threshold are respectively negatively correlated with the charging power.

6. An electric vehicle power storage and distribution device, characterized in that: The electric vehicle includes solar cells and a vehicle power battery. The solar cells are charged by a solar energy conversion system configured on the body of the electric vehicle. The device includes: an acquisition unit, configured to acquire 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 obtain a 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, 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 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, configured 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 distribution strategy; 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, 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; 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.

7. An electric vehicle, characterized in that: The electric vehicle includes 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 5.

Images