Control method and device of vehicle photovoltaic power generation system and vehicle

Abstract

The invention relates to a control method and device of a vehicle photovoltaic power generation system and electric energy equipment, and belongs to the technical field of new energy charging, and the method comprises the steps that the photovoltaic power generation system comprises a photovoltaic assembly and an adjusting assembly; the control method comprises the step of controlling the adjusting assembly to adjust the inclination angle of the photovoltaic assembly so as to maintain the relative angle between the photovoltaic assembly and the light source. The control method of the vehicle photovoltaic power generation system provided by the invention can improve the utilization efficiency of clean energy.

Description

Technical Field

[0001] This disclosure relates to the technical field of vehicle-mounted new energy power generation, and more specifically, to a control method, device, and vehicle for a vehicle-mounted photovoltaic power generation system. Background Technology

[0002] With the rapid development of new energy power generation technologies, clean energy sources such as solar energy can be effectively utilized. Currently, vehicles can operate using electricity as their power source. Therefore, vehicles can be equipped with power generation devices that utilize clean energy to provide the electrical energy required for operation. However, the operating status of onboard clean energy power generation devices cannot be intelligently adjusted, and their conversion efficiency is limited, failing to meet the usage needs of vehicles. Summary of the Invention

[0003] One object of the present disclosure is to provide a control scheme that can improve the conversion efficiency of a power generation device.

[0004] According to a first aspect of this disclosure, a control method for a vehicle-mounted photovoltaic power generation system is provided, the photovoltaic power generation system comprising photovoltaic modules and a regulating component; the control method includes:

[0005] The adjustment component is controlled to adjust the tilt angle of the photovoltaic module to maintain the relative angle between the photovoltaic module and the light source.

[0006] Optionally, the method further includes:

[0007] Obtain the illumination intensity information of the light source;

[0008] When the light intensity information indicates that the light intensity is within a set first light intensity range, the step of controlling the adjustment component to adjust the tilt angle of the photovoltaic module is executed.

[0009] Optionally, the method further includes:

[0010] Get the current time;

[0011] When the current time is within a set time period, the step of obtaining the light intensity information of the light source is executed;

[0012] When the current time is not within the set time period, the photovoltaic module is controlled to stop working.

[0013] Optionally, the photovoltaic module is connected to the adjustment component at a first location, and the photovoltaic module is connected to a connector fixed relative to the vehicle body at a second location.

[0014] The control of the adjustment component to adjust the tilt angle of the photovoltaic module includes:

[0015] The adjustment component is controlled to extend or retract, causing the photovoltaic module to rotate around the connector as a fulcrum, thereby adjusting the tilt angle of the photovoltaic module.

[0016] Optionally, the method further includes:

[0017] When the photovoltaic module is working, the voltage value output by the photovoltaic module as a power source is obtained;

[0018] When the voltage value is greater than or equal to a first set voltage threshold, the photovoltaic module is controlled to supply power to the high-voltage load of the vehicle.

[0019] Optionally, after obtaining the voltage value output by the photovoltaic module as a power source, the method further includes:

[0020] When the voltage value is less than or equal to a second set voltage threshold, the photovoltaic module is controlled to charge the vehicle's battery; wherein the second set voltage threshold is less than the first set voltage threshold.

[0021] Optionally, after obtaining the voltage value output by the photovoltaic module as a power source, the method further includes:

[0022] When the voltage value is greater than the second set voltage threshold and less than the first set voltage threshold, the photovoltaic module is controlled to supply power to the low-voltage load of the vehicle.

[0023] Optionally, the photovoltaic power generation system further includes a power conversion device connected to the photovoltaic module, and after obtaining the illuminance information of the light source, the method further includes:

[0024] When the light intensity information indicates that the light intensity is within a set first light intensity range, the conversion power of the power conversion device is controlled to a first set value.

[0025] After obtaining the illumination intensity information of the light source, the method further includes:

[0026] When the light intensity information indicates that the light intensity is within the set second light intensity range, the control of the adjustment component is canceled, the tilt angle of the photovoltaic module remains unchanged, and the conversion power of the power conversion device is controlled to the second set value; wherein, the upper limit of the light intensity of the second light intensity range is less than the lower limit of the light intensity of the first light intensity range, and the second set value is less than the first set value.

[0027] Optionally, after obtaining the illumination intensity information of the light source, the method further includes:

[0028] When the light intensity information indicates that the light intensity is within the set third light intensity range, the photovoltaic module is controlled to stop working;

[0029] Wherein, the lower limit of the light intensity of the second light intensity range is greater than the upper limit of the light intensity of the third light intensity range.

[0030] Optionally, the photovoltaic module includes a solar power generation module and a thermal power generation module. The solar power generation module is disposed on the thermal power generation module, and the solar power generation module absorbs the heat generated by solar radiation and transfers it to the thermal power generation module to generate electricity.

[0031] Optionally, the method further includes:

[0032] The light intensity information of the light source and the temperature difference value of the thermal power generation component are obtained; wherein, the temperature difference value is the temperature difference between the heat source and the working fluid of the thermal power generation component;

[0033] When the light intensity represented by the light intensity information and the temperature difference value meet the set first condition, the conversion power of the power conversion device is controlled to the first set value.

[0034] When the light intensity represented by the light intensity information and the temperature difference value meet the set second condition, the conversion power of the power conversion device is controlled to the second set value.

[0035] The first condition includes the light intensity being within a set first light intensity range and the temperature difference being greater than or equal to a set threshold.

[0036] The second condition includes the light intensity being within the first light intensity range and the temperature difference being less than the set threshold, or the light intensity being within the set second light intensity range.

[0037] According to a second aspect of this disclosure, a control device for a vehicle-mounted photovoltaic power generation system is also provided, the photovoltaic power generation system including photovoltaic modules and regulating components; the control device includes:

[0038] The photovoltaic power generation system includes photovoltaic modules and a regulating module; the control device includes:

[0039] The drive control module is used to control the adjustment component to adjust the tilt angle of the photovoltaic module in order to maintain the relative angle between the photovoltaic module and the light source.

[0040] According to a third aspect of this disclosure, a control device for a vehicle photovoltaic power generation system is also provided, including a memory and a processor, wherein the memory is used to store a computer program; and the processor is used to execute the computer program to implement the method according to a first aspect of this disclosure.

[0041] According to a fourth aspect of this disclosure, a vehicle is also provided, including a photovoltaic power generation system. The photovoltaic power generation system includes photovoltaic modules, an adjustment component, and a control device. The control device is the control device described in the second or third aspect. The adjustment component is connected to the photovoltaic modules and is used to adjust the tilt angle of the photovoltaic modules under the control of the control device.

[0042] Optionally, the photovoltaic module includes a solar power generation module and a thermal power generation module. The solar power generation module includes a solar photovoltaic panel, and the thermal power generation module includes a heat collector, a heat dissipation pipe, and a thermoelectric converter. The solar photovoltaic panel is disposed on a first surface of the heat collector, the heat dissipation pipe is disposed on a second surface of the heat collector, and the output end of the heat dissipation pipe is connected to the thermoelectric converter.

[0043] One beneficial effect of this disclosure is that the control method for the vehicle photovoltaic power generation system provided by the present invention can control the adjustment component to adjust the tilt angle of the photovoltaic module in order to maintain the relative angle between the photovoltaic module and the light source, thereby improving the stability of power supply to the vehicle.

[0044] Other features and advantages of the embodiments of this disclosure will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0045] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments of the present disclosure and, together with their description, serve to explain the principles of the embodiments of the present disclosure.

[0046] Figure 1 It is a schematic diagram of the composition structure of a vehicle that can be applied according to one embodiment;

[0047] Figure 2 This is a schematic diagram of the structure of a photovoltaic power generation component according to one embodiment;

[0048] Figure 3 This is a flowchart illustrating a control method for a vehicle-mounted photovoltaic power generation system according to one embodiment;

[0049] Figure 4 This is a schematic diagram of the position of the sun in a celestial coordinate system according to one embodiment;

[0050] Figure 5 This is a flowchart of the decision-making process of a control device for a vehicle photovoltaic power generation system according to one embodiment;

[0051] Figure 6 This is a block diagram of a control device for a vehicle photovoltaic power generation system according to one embodiment;

[0052] Figure 7This is a schematic diagram of the hardware structure of the control device for a vehicle photovoltaic power generation system according to one embodiment. Detailed Implementation

[0053] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention.

[0054] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0055] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0056] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0057] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0058] <System Implementation>

[0059] Figure 1 This is a schematic diagram of the component structure of a vehicle applicable according to one embodiment. For example... Figure 1 As shown, the vehicle can be a gasoline-powered vehicle, an electric vehicle, or a hybrid vehicle, etc., and is not limited thereto. The vehicle includes a photovoltaic power generation system, which includes photovoltaic modules, an adjustment component, and a control device 10. The adjustment component is connected to the photovoltaic modules and is used to adjust the tilt angle of the photovoltaic modules under the control of the control device 10.

[0060] The control device 10 can be electrically or communicatively connected to the vehicle infotainment system 200, without limitation. The control device 10 can be a control chip capable of obtaining information such as the current time, weather conditions, or the vehicle's current location from the vehicle infotainment system 200. The control device 10 can obtain information about the current location and time from the vehicle infotainment system 200. For example, the vehicle infotainment system 200 can send the string $GPRMC, 103011, A, 4553.3124, N, 12508.4523, E, where $GPRMC is the frame header, 103011 represents the current time in hourly format, A, 4553.3124 represents the latitude of the current location, N indicates the Northern Hemisphere, 12508.4523 represents the longitude of the current location, and E indicates the Eastern Hemisphere. The control device 10 can retrieve this information from the vehicle infotainment system 200 again after a set time interval. The duration can be set to, for example, 10 minutes, 30 minutes, or 1 hour, etc., without any restrictions.

[0061] In some embodiments, such as Figure 2 As shown, the photovoltaic module may include a solar power generation module 111 and a thermal power generation module 112. The solar power generation module 111 includes a solar photovoltaic panel 2, and the thermal power generation module 112 includes a heat collector plate 1, a heat dissipation pipe 4, and a thermoelectric converter 5. The solar photovoltaic panel 2 is disposed on the first surface of the heat collector plate 1, and the heat dissipation pipe 4 is disposed on the second surface of the heat collector plate 1. The output end of the heat dissipation pipe 4 is connected to the thermoelectric converter 5.

[0062] In some embodiments, the photovoltaic module is connected to the regulating component at a first location, and the photovoltaic module is connected to a connector fixed relative to the vehicle body at a second location.

[0063] In some examples, such as Figure 2 As shown, the adjustment assembly includes a drive adjustment rod 3. The first end of the drive adjustment rod 3 is movably connected to the first part of the solar photovoltaic panel 2. The second part of the solar photovoltaic panel 2 is connected to the connecting piece 6 which is fixed relative to the vehicle body. The second end of the drive adjustment rod 3 is also fixed relative to the vehicle body, so that moving the drive adjustment rod 3 upward can cause the solar photovoltaic panel 2 to tilt upward, and moving the drive adjustment rod 3 downward can cause the solar photovoltaic panel 2 to tilt downward, so as to adjust the tilt angle of the solar photovoltaic panel 2.

[0064] The thermal power generation component 112 includes a heat collector plate 1, a heat dissipation pipe 4, and a thermoelectric converter 5. A solar photovoltaic panel 2 is disposed on the first surface of the heat collector plate 1, and the heat generated by the solar photovoltaic panel 2 when absorbing solar radiation can be transferred to the heat collector plate 1. The heat dissipation pipe 4 is disposed on the second surface of the heat collector plate 1, with the first and second surfaces of the heat collector plate 1 facing away from each other. The output end of the heat dissipation pipe 4 is connected to the thermoelectric converter 5, allowing the heat collector plate 1 to transfer heat into the heat dissipation pipe 4. The heat within the heat dissipation pipe 4 can then be output to the thermoelectric converter 5 for the conversion of heat energy into electrical energy. Furthermore, the heat generated by the solar photovoltaic panel 2 when absorbing solar radiation can be maintained at the operating temperature thanks to the heat dissipation effect of the heat dissipation pipe 4.

[0065] The photovoltaic power generation system also includes a power conversion device 12 connected to the photovoltaic modules. This power conversion device 12 can convert the first electrical energy output from the photovoltaic power generation module 111 and the second electrical energy output from the thermal power generation module 112 to charge the vehicle's low-voltage load 20, high-voltage load 30, and power supply battery 40. The power conversion device 12 may include an inverter and a DC-DC converter. The control device 10 can control the conversion of the first electrical energy output from the photovoltaic power generation module 111 into first DC power, and can also convert the second electrical energy output from the thermal power generation module 112 into second DC power. The first and second DC powers can be input individually or simultaneously to the inverter, which can convert them into AC power and output it to the low-voltage load 20. The first and second DC powers can also be input individually or simultaneously to the DC-DC converter, which can convert them into DC power and output it to the high-voltage load 30. The control device 10 can also convert the first and second DC powers into a third DC power to meet the needs of the power supply battery 40.

[0066] The low-voltage load 20 can be, for example, a vehicle display screen or a windshield wiper, and is not limited to these.

[0067] The high-voltage load 30 can be, for example, a vehicle refrigerator or an electric motor, and is not limited to these.

[0068] The power supply battery 40 is, for example, a storage battery, and it can be electrically connected to the power conversion device 12.

[0069] In the embodiments of this disclosure, the memory of the control device 10 is used to store a computer program for controlling the processor of the control device 10 to operate according to the control method of the vehicle photovoltaic power generation system according to any embodiment. Those skilled in the art can design the computer program based on the scheme of the embodiments of this disclosure. How the computer program controls the processor to operate is well known in the art and will not be described in detail here.

[0070] <Method Implementation>

[0071] Figure 2 This is a flowchart illustrating a control method for a vehicle-mounted photovoltaic power generation system according to one embodiment. The implementing entity is, for example, a... Figure 1 Central control device 10.

[0072] like Figure 2 As shown, the control method of the vehicle photovoltaic power generation system in this embodiment may include the following step S310:

[0073] Step S310: Control the adjustment component to adjust the tilt angle of the photovoltaic module to maintain the relative angle between the photovoltaic module and the light source.

[0074] In some examples, the light source is, for example, sunlight.

[0075] In some examples, the relative angle can be the solar photovoltaic panel of the photovoltaic module being perpendicular to the light source, or it can be a set angle between the solar photovoltaic panel of the photovoltaic module and the light source, such as 70°-90° or 80°-90°.

[0076] In other words, the control device can control the adjustment component to adjust the tilt angle of the photovoltaic module to maintain the relative angle between the photovoltaic module and the light source, thereby improving the stability of power supply to the vehicle.

[0077] In some embodiments, the method further includes the following steps S410 and S420:

[0078] Step S410: Obtain the light intensity information of the light source.

[0079] In some examples, light intensity information may include the light intensity of the vehicle's surrounding environment, the solar altitude angle, and other information.

[0080] Step S420: When the light intensity information indicates that the light intensity is within the set first light intensity range, the step of adjusting the tilt angle of the photovoltaic module by the control adjustment component is executed.

[0081] In this embodiment, the first light intensity range can be set manually and is not limited here. This light intensity information can be obtained through the vehicle system. For example, if the vehicle system can output the light intensity information for a "sunny" day, then this light intensity information can be represented as the light intensity being within the set first light intensity range.

[0082] In other words, when there is sufficient light from the source, the control device can control the photovoltaic modules to maintain a relative angle with the light source, which can effectively improve the stability of the vehicle's power supply.

[0083] In some examples, the method further includes steps S510 to S530 as follows:

[0084] Step S510: Obtain the current time.

[0085] In some examples, after the vehicle is started, the vehicle's infotainment system can send a charging request to the control device to request that the vehicle be charged. Alternatively, after the user performs an operation on the vehicle's display screen to allow the generator to operate, the vehicle's infotainment system can send a charging request to the control device to request that the vehicle be charged. This is not limited to any particular example.

[0086] In this embodiment, the current time can be obtained through the aforementioned vehicle infotainment system.

[0087] Step S520: When the current time is within a set time period, perform the step of obtaining the light intensity information of the light source.

[0088] In this embodiment, the time period can be preset, or it can be set by the aforementioned vehicle system. For example, the time period is... Figure 5 The time frame shown is from 6 PM on the current day to 6 AM on the following day.

[0089] Step S530: If the current time is not within the set time period, control the photovoltaic module to stop working.

[0090] In some examples, such as Figure 5 As shown, the set time period is from 6 PM on the current day to 6 AM on the next day. When the current time is 8 PM on the current day, the control device can control the photovoltaic modules to stop working in order to improve the energy utilization efficiency of the vehicle's power supply battery.

[0091] In some examples, the control device can also acquire the vehicle's operating information, which includes the values ​​of some parameters during vehicle operation. These parameters may include the drive voltage value of the drive motor, the drive current value of the drive motor, the output voltage value of the solar power generation component, the output current value of the solar power generation component, the temperature difference between the heat dissipation pipe of the thermal power generation component and the aforementioned heat collection plate, the output voltage value of the thermal power generation component, and the output current value of the thermal power generation component, etc., without limitation.

[0092] In some embodiments, the photovoltaic module is connected to the regulating component at a first location, and the photovoltaic module is connected to a connector fixed relative to the vehicle body at a second location.

[0093] Step S310 may include the following step S3101:

[0094] Step S3101: Control the extension or contraction of the adjustment component so that the photovoltaic module rotates around the connector as a fulcrum to adjust the tilt angle of the photovoltaic module.

[0095] In some examples, the adjustment assembly may include the aforementioned drive adjustment lever and driver, the control device may output the current solar altitude angle to the driver, the driver may adjust the tilt angle of the solar photovoltaic panel according to the solar altitude angle.

[0096] In some examples, the control device can obtain the solar altitude angle through the vehicle's infotainment system, calculate the tilt angle of the solar photovoltaic panel based on the solar altitude angle, and then feed the tilt angle back to the driver. The driver can then control the distance by which the photovoltaic module rotates up and down around the connector as a fulcrum based on the tilt angle.

[0097] In some examples, such as Figure 4 As shown, this control device can track the sun using a set all-weather solar tracking algorithm and a sun-earth relative motion tracker to obtain the solar altitude angle throughout the day. Based on the solar altitude angle, the tilt angle of the solar photovoltaic panels is adjusted to improve photovoltaic power generation efficiency. Specifically, the all-weather solar tracking algorithm is based on the sun's movement within the celestial coordinate system, such as... Figure 4 As shown, the angle between arcs PX and PZ is equal to the hour angle T, and the angle between arcs PZ and ZX is complementary to the azimuth angle λ. The central angle corresponding to arc ZX is complementary to the altitude angle h, the central angle corresponding to arc PX is complementary to the declination angle δ, and the central angle corresponding to arc PZ is complementary to the geographic latitude. Therefore, the solar altitude angle at noon is the sum of the complementary angle of the local latitude and the obliquity of the ecliptic, i.e., h = 90° ± (δ - ω). Thus, given the declination angle δ and the azimuth angle λ, the expression for the solar altitude angle is sinλ = cosδ * sinω. In other words, the above all-weather solar tracking algorithm can effectively reduce the need for the control device to acquire or calculate the solar altitude angle in real time, effectively reducing the excessive consumption of the control device's computing resources.

[0098] In some embodiments, the method further includes the following steps S610 and S620:

[0099] Step S610: When the photovoltaic module is working, obtain the voltage value output by the photovoltaic module as a power source.

[0100] In some examples, the sampling terminal of the power conversion device is connected to the vehicle's voltage sampling device. The voltage sampling device can collect the voltage at the connection point between the photovoltaic power generation component and the power conversion device, as well as the voltage at the connection point between the thermal power generation component and the conversion device. The voltage values ​​of these two voltages are used to determine the voltage value of the electrical energy output by the power conversion device.

[0101] Step S620: When the voltage value is greater than or equal to the first set voltage threshold, control the photovoltaic module to supply power to the high-voltage load of the vehicle.

[0102] In this embodiment, the first set voltage threshold is, for example, 50V, 150V, 200V or 500V, etc., and is not limited here.

[0103] In other words, by obtaining the voltage value of the photovoltaic module as a power source, electrical energy can be distributed to high-voltage loads, thereby improving the rational utilization of solar and thermal energy while ensuring that the electrical energy meets the voltage requirements of the high-voltage loads.

[0104] In some embodiments, after step S610, the method further includes step S611:

[0105] Step S611: When the voltage value is less than or equal to the second set voltage threshold, control the photovoltaic module to charge the vehicle's battery; wherein the second set voltage threshold is less than the first set voltage threshold.

[0106] In this embodiment, the second set voltage threshold is, for example, 5V, 20V or 30V, etc., and is not limited here.

[0107] In other words, by obtaining the voltage value of the photovoltaic module as a power source, electrical energy can be distributed to the battery, thereby improving the rational utilization of solar and thermal energy while ensuring that the voltage requirement of the battery is met.

[0108] In some embodiments, after step S610, the method further includes step S612:

[0109] Step S612: When the voltage value is greater than the second set voltage threshold and less than the first set voltage threshold, control the photovoltaic module to supply power to the low-voltage load of the vehicle.

[0110] In other words, by obtaining the voltage value of the photovoltaic module as a power source, electrical energy can be distributed to low-voltage loads, thereby improving the rational utilization of solar and thermal energy while ensuring that the electrical energy meets the voltage requirements of the low-voltage loads.

[0111] In some embodiments, the photovoltaic power generation system further includes a power conversion device connected to the photovoltaic module. After step S410, the method further includes the following step S711:

[0112] Step S711: When the light intensity information indicates that the light intensity is within the set first light intensity range, control the conversion power of the power conversion device to the first set value.

[0113] In this embodiment, the solar power generation component has different operating modes, including a solar tracking mode. In the solar tracking mode, the control device can control the drive adjustment rod to move up or down, so that the solar photovoltaic panel can be perpendicular to the light source, thereby making the solar power generation component more efficient in converting light energy into electrical energy.

[0114] In some examples, the control device can control the conversion efficiency of the converter by outputting PWM wave signals with different duty cycles to the converter. That is, the first set value can be reflected by a duty cycle, for example, the first set value is 100%, 90%, or 85%, etc.

[0115] In other words, by setting the solar tracking mode of the photovoltaic power generation module and the conversion efficiency of the power conversion device in the solar tracking mode, the utilization efficiency of solar energy by the control device can be effectively improved.

[0116] In some embodiments, after step S410, the method further includes the following step S712:

[0117] Step S712: When the light intensity information indicates that the light intensity is within the set second light intensity range, the control of the adjustment component is cancelled, the tilt angle of the photovoltaic module remains unchanged, and the conversion power of the power conversion device is controlled to the second set value; wherein, the upper limit of the light intensity of the second light intensity range is less than the lower limit of the light intensity of the first light intensity range, and the second set value is less than the first set value.

[0118] In this embodiment, the solar power generation component has different operating modes, including a normal mode. In the normal mode, the control device can control the drive adjustment rod to reset, so that the solar photovoltaic panel can be placed flat on the top of the vehicle, so that the solar power generation component can convert light energy into electrical energy without occupying the computing resources of the control device.

[0119] In some examples, the control device can control the conversion efficiency of the converter by outputting PWM wave signals with different duty cycles to the converter. That is, the second set value can be reflected by a duty cycle, for example, the second set value is 50%, 60%, or 70%, etc.

[0120] In other words, by setting the normal mode of the solar power generation components and the conversion efficiency of the power conversion device in the normal mode, the utilization efficiency of solar energy by the control device can be effectively improved.

[0121] In some embodiments, after step S410, the method further includes the following step S713:

[0122] Step S713: When the light intensity information indicates that the light intensity is within the set third light intensity range, control the photovoltaic module to stop working; wherein, the lower limit of the light intensity in the second light intensity range is greater than the upper limit of the light intensity in the third light intensity range.

[0123] In this embodiment, the solar power generation component has different operating modes, including a shutdown mode. In the shutdown mode, the control device can control the aforementioned drive adjustment rod and solar photovoltaic panel to be in a dormant state.

[0124] In some examples, the control device can control the conversion efficiency of the converter by outputting PWM wave signals with different duty cycles to the converter. That is, the third set value can be reflected by a duty cycle, for example, the third set value is 0.

[0125] In other words, by setting the shutdown mode of the solar power generation components and stopping the operation of the power conversion device in the shutdown mode, the energy utilization efficiency of the control device can be effectively improved.

[0126] In some embodiments, a photovoltaic module includes a solar power generation module and a thermal power generation module. The solar power generation module is disposed on top of the thermal power generation module, and the solar power generation module absorbs the heat generated by solar radiation and transfers it to the thermal power generation module to generate electricity. In other words, since the solar power generation module can absorb the heat generated by solar radiation, placing the thermal power generation module below the solar power generation module can effectively improve the power generation efficiency of the thermal power generation module.

[0127] In some embodiments, the method further includes the following steps S810 to S830:

[0128] Step S810: Obtain the light intensity information of the light source and the temperature difference value of the thermal power generation component; wherein, the temperature difference value is the temperature difference between the heat source and the working fluid of the thermal power generation component.

[0129] In this embodiment, the heat source can be the aforementioned heat collection plate, and the working fluid can be the aforementioned heat dissipation pipe. The temperature of the heat dissipation pipe is close to the ambient temperature of the vehicle. In other words, there is a temperature difference between the temperature on the heat collection plate and the temperature of the heat dissipation pipe.

[0130] In step S820, when the light intensity and temperature difference values ​​indicated by the light intensity information meet the set first conditions, the conversion power of the power conversion device is controlled to the first set value.

[0131] In this embodiment, when the light intensity and temperature difference meet the set first conditions, it can be said that the external ambient light of the vehicle is relatively sufficient. The vehicle's power conversion device can convert the first electrical energy output by the solar power generation component and the second electrical energy output by the thermal power generation component with a high conversion efficiency, so as to improve the utilization efficiency of solar energy and thermal energy.

[0132] In some embodiments, in order to enable the rational use of solar and thermal energy to power or charge vehicles, the first condition may include the light intensity being within a set first light intensity range and the temperature difference being greater than or equal to a set threshold, so as to improve the conversion efficiency of the conversion device when the ambient light outside the vehicle is sufficient.

[0133] Step S830: When the light intensity and temperature difference value represented by the light intensity information meet the set second conditions, control the conversion power of the power conversion device to the second set value. The first condition includes light intensity within a set first light intensity range and temperature difference greater than or equal to a set threshold; the second condition includes light intensity within the first light intensity range and temperature difference less than the set threshold, or light intensity within a set second light intensity range.

[0134] In this embodiment, when the light intensity and temperature difference meet the set second condition, it can be indicated that the ambient light outside the vehicle is insufficient. The vehicle's power conversion device can convert the first electrical energy output by the solar power generation component and the second electrical energy output by the thermal power generation component with a lower conversion efficiency, so as to improve the utilization efficiency of solar and thermal energy while ensuring the stability of the electrical energy output by the power conversion device.

[0135] In some embodiments, in order to enable the rational use of solar and thermal energy to power or charge the vehicle, the second condition includes the light intensity being within a first light intensity range and the temperature difference being less than a set threshold, or the light intensity being within a set second light intensity range, so that when the ambient light outside the vehicle is insufficient, the conversion efficiency of the conversion device is reduced.

[0136] In some instances, the threshold can be set to 30℃, 40℃, or 50℃; no specific limit is imposed here.

[0137] <Equipment Example 1>

[0138] Figure 6 This is a schematic block diagram of a control device for a vehicle-mounted photovoltaic power generation system according to one embodiment. Figure 6 As shown, the photovoltaic power generation system includes photovoltaic modules and regulating modules, and the control device 500 of the vehicle photovoltaic power generation system may include a drive control module 510.

[0139] The drive control module 510 is used to control the adjustment component to adjust the tilt angle of the photovoltaic module in order to maintain the relative angle between the photovoltaic module and the light source.

[0140] Optionally, the control device 500 further includes an information acquisition module, which is used to acquire light intensity information of the light source; when the light intensity information indicates that the light intensity is within a set first light intensity range, the control adjustment component is used to adjust the tilt angle of the photovoltaic module.

[0141] Optionally, the control device 500 further includes a time acquisition module, which is used to acquire the current time; when the current time is within a set time period, it performs the step of acquiring the light intensity information of the light source; when the current time is not within the set time period, it controls the photovoltaic module to stop working.

[0142] Optionally, the drive control module 510 is also used to control the extension or contraction of the adjustment component, so that the photovoltaic module rotates around the connector as a fulcrum to adjust the tilt angle of the photovoltaic module.

[0143] Optionally, the control device 500 further includes a power supply control module, which is used to acquire the voltage value of the photovoltaic module as a power source when the photovoltaic module is working; and to control the photovoltaic module to supply power to the high-voltage load of the vehicle when the voltage value is greater than or equal to a first set voltage threshold.

[0144] Optionally, the control device 500 further includes a charging control module, which controls the photovoltaic module to charge the vehicle's battery when the voltage value is less than or equal to a second set voltage threshold; wherein the second set voltage threshold is less than a first set voltage threshold.

[0145] Optionally, the control device 500 further includes a load control module, which controls the photovoltaic module to supply power to the low-voltage load of the vehicle when the voltage value is greater than a second set voltage threshold and less than a first set voltage threshold.

[0146] Optionally, the control device 500 further includes a first conversion control module, which is used to control the conversion power of the power conversion device to a first set value when the light intensity information indicates that the light intensity is within a set first light intensity range.

[0147] Optionally, the control device 500 further includes a second conversion control module, which is used to cancel the control of the adjustment component, keep the tilt angle of the photovoltaic module unchanged, and control the conversion power of the power conversion device to a second set value when the light intensity information indicates that the light intensity is within a set second light intensity range; wherein the upper limit of the light intensity of the second light intensity range is less than the lower limit of the light intensity of the first light intensity range, and the second set value is less than the first set value.

[0148] Optionally, the control device 500 further includes a third conversion control module, which is used to control the photovoltaic module to stop working when the light intensity information indicates that the light intensity is within a set third light intensity range; wherein the lower limit of the light intensity range of the second light intensity range is greater than the upper limit of the light intensity range of the third light intensity range.

[0149] Optionally, the control device 500 further includes a temperature control module, which is used to acquire the light intensity information of the light source and the temperature difference value of the thermal power generation component; wherein, the temperature difference value is the temperature difference between the heat source and the working fluid of the thermal power generation component; when the light intensity and temperature difference value represented by the light intensity information meet the set first condition, the conversion power of the power conversion device is controlled to a first set value; when the light intensity and temperature difference value represented by the light intensity information meet the set second condition, the conversion power of the power conversion device is controlled to a second set value; wherein, the first condition includes the light intensity being within a set first light intensity range and the temperature difference value being greater than or equal to a set threshold; the second condition includes the light intensity being within the first light intensity range and the temperature difference value being less than the set threshold, or the light intensity being within a set second light intensity range.

[0150] The control device 500 of the vehicle photovoltaic power generation system can be Figure 1 Control device 10 in the middle.

[0151] <Equipment Example 2>

[0152] Figure 7 This is a schematic diagram of the hardware structure of the control device for a vehicle photovoltaic power generation system according to another embodiment.

[0153] like Figure 7 As shown, the control device 600 of the vehicle photovoltaic power generation system includes a processor 610 and a memory 620. The memory 620 is used to store an executable computer program, and the processor 610 is used to execute the method as described in any of the above method embodiments according to the control of the computer program.

[0154] The control device 600 of the vehicle photovoltaic power generation system can be Figure 1 Control device 10 in the middle.

[0155] Each module of the control device 500 of the above-mentioned vehicle photovoltaic power generation system can be implemented by the processor 610 in this embodiment executing the computer program stored in the memory 620, or it can be implemented by other structures, which are not limited here.

[0156] This invention can be a system, method, and / or computer program product. A computer program product may include a computer-readable storage medium having computer-readable program instructions loaded thereon for causing a processor to implement various aspects of the invention.

[0157] Computer-readable storage media can be tangible devices capable of holding and storing instructions for use by an instruction execution device. Computer-readable storage media can be, for example—but not limited to—electrical storage devices, magnetic storage devices, optical storage devices, electromagnetic storage devices, semiconductor storage devices, or any suitable combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static random access memory (SRAM), portable compact disc read-only memory (CD-ROM), digital multifunction disc (DVD), memory sticks, floppy disks, mechanical encoding devices, such as punch cards or recessed protrusions storing instructions thereon, and any suitable combination thereof. The computer-readable storage media used herein are not to be construed as transient signals themselves, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (e.g., light pulses through fiber optic cables), or electrical signals transmitted through wires.

[0158] The computer-readable program instructions described herein can be downloaded from computer-readable storage media to various computing / processing devices, or downloaded via a network, such as the Internet, local area network, wide area network, and / or wireless network, to an external computer or external storage device. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers, and / or edge servers. A network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards them to the computer-readable storage media in the respective computing / processing device.

[0159] The computer program instructions used to perform the operations of this invention may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Smalltalk, C++, etc., and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The computer-readable program instructions may be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or may be connected to an external computer (e.g., via the Internet using an Internet service provider). In some embodiments, electronic circuitry, such as programmable logic circuitry, field-programmable gate arrays (FPGAs), or programmable logic arrays (PLAs), is personalized by utilizing state information from the computer-readable program instructions. This electronic circuitry can execute the computer-readable program instructions to implement various aspects of the invention.

[0160] Various aspects of the present invention are described herein with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer-readable program instructions.

[0161] These computer-readable program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus to produce a machine such that, when executed by the processor of the computer or other programmable data processing apparatus, they create means for implementing the functions / actions specified in one or more blocks of the flowchart and / or block diagram. These computer-readable program instructions can also be stored in a computer-readable storage medium that causes a computer, programmable data processing apparatus, and / or other device to operate in a particular manner; thus, the computer-readable medium storing the instructions comprises an article of manufacture that includes instructions for implementing aspects of the functions / actions specified in one or more blocks of the flowchart and / or block diagram.

[0162] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device to cause a series of operational steps to be performed on the computer, other programmable data processing apparatus, or other device to produce a computer-implemented process, thereby causing the instructions executed on the computer, other programmable data processing apparatus, or other device to perform the functions / actions specified in one or more boxes of a flowchart and / or block diagram.

[0163] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of the present invention. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of an instruction containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions. It will be known to those skilled in the art that implementation in hardware, implementation in software, and implementation using a combination of software and hardware are equivalent.

[0164] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, and are not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein. The scope of the invention is defined by the appended claims.

Claims

1. A control method for a vehicle-mounted photovoltaic power generation system, characterized in that, The photovoltaic power generation system includes photovoltaic modules and a regulation module; the control method includes: The adjustment component is controlled to adjust the tilt angle of the photovoltaic module to maintain the relative angle between the photovoltaic module and the light source.

2. The method according to claim 1, characterized in that, The method further includes: Obtain the illumination intensity information of the light source; When the light intensity information indicates that the light intensity is within a set first light intensity range, the step of controlling the adjustment component to adjust the tilt angle of the photovoltaic module is executed.

3. The method according to claim 2, characterized in that, The method further includes: Get the current time; When the current time is within a set time period, the step of obtaining the light intensity information of the light source is executed; When the current time is not within the set time period, the photovoltaic module is controlled to stop working.

4. The method according to claim 1, characterized in that, The photovoltaic module is connected to the adjustment component at a first location, and the photovoltaic module is connected to a connector fixed relative to the vehicle body at a second location. The control of the adjustment component to adjust the tilt angle of the photovoltaic module includes: The adjustment component is controlled to extend or retract, causing the photovoltaic module to rotate around the connector as a fulcrum, thereby adjusting the tilt angle of the photovoltaic module.

5. The method according to claim 1, characterized in that, The method further includes: When the photovoltaic module is working, the voltage value output by the photovoltaic module as a power source is obtained; When the voltage value is greater than or equal to a first set voltage threshold, the photovoltaic module is controlled to supply power to the high-voltage load of the vehicle.

6. The method according to claim 5, characterized in that, After obtaining the voltage value output by the photovoltaic module as a power source, the method further includes: When the voltage value is less than or equal to a second set voltage threshold, the photovoltaic module is controlled to charge the vehicle's battery; wherein the second set voltage threshold is less than the first set voltage threshold.

7. The method according to claim 6, characterized in that, After obtaining the voltage value output by the photovoltaic module as a power source, the method further includes: When the voltage value is greater than the second set voltage threshold and less than the first set voltage threshold, the photovoltaic module is controlled to supply power to the low-voltage load of the vehicle.

8. The method according to claim 2, characterized in that, The photovoltaic power generation system further includes a power conversion device connected to the photovoltaic module, and after obtaining the light intensity information of the light source, the method further includes: When the light intensity information indicates that the light intensity is within a set first light intensity range, the conversion power of the power conversion device is controlled to a first set value.

9. The method according to claim 8, characterized in that, After obtaining the illumination intensity information of the light source, the method further includes: When the light intensity information indicates that the light intensity is within the set second light intensity range, the control of the adjustment component is cancelled, the tilt angle of the photovoltaic module remains unchanged, and the conversion power of the power conversion device is controlled to the second set value; wherein, the upper limit of the light intensity of the second light intensity range is less than the lower limit of the light intensity of the first light intensity range, and the second set value is less than the first set value.

10. The method according to claim 9, characterized in that, After obtaining the illumination intensity information of the light source, the method further includes: When the light intensity information indicates that the light intensity is within the set third light intensity range, the photovoltaic module is controlled to stop working; Wherein, the lower limit of the light intensity of the second light intensity range is greater than the upper limit of the light intensity of the third light intensity range.

11. The method according to any one of claims 1 to 10, characterized in that, The photovoltaic module includes a solar power generation module and a thermal power generation module. The solar power generation module is mounted on the thermal power generation module, and the solar power generation module absorbs the heat generated by solar radiation and transfers it to the thermal power generation module to generate electricity.

12. The method according to claim 11, characterized in that, The method further includes: The light intensity information of the light source and the temperature difference value of the thermal power generation component are obtained; wherein, the temperature difference value is the temperature difference between the heat source and the working fluid of the thermal power generation component; When the light intensity represented by the light intensity information and the temperature difference value meet the set first condition, the conversion power of the power conversion device is controlled to the first set value. When the light intensity represented by the light intensity information and the temperature difference value meet the set second condition, the conversion power of the power conversion device is controlled to the second set value. The first condition includes the light intensity being within a set first light intensity range and the temperature difference being greater than or equal to a set threshold. The second condition includes the light intensity being within the first light intensity range and the temperature difference being less than the set threshold, or the light intensity being within the set second light intensity range.

13. A control device for a vehicle-mounted photovoltaic power generation system, characterized in that, The photovoltaic power generation system includes photovoltaic modules and a regulating module; the control device includes: The drive control module is used to control the adjustment component to adjust the tilt angle of the photovoltaic module in order to maintain the relative angle between the photovoltaic module and the light source.

14. A control device for a vehicle-mounted photovoltaic power generation system, characterized in that, The device includes a memory and a processor, the memory being used to store a computer program; the processor being used to execute the computer program to implement the method according to any one of claims 1 to 12.

15. A vehicle, characterized in that, The system includes a photovoltaic power generation system, which comprises a photovoltaic module, an adjustment component, and a control device. The control device is the control device described in claim 13 or 14. The adjustment component is connected to the photovoltaic module and is used to adjust the tilt angle of the photovoltaic module under the control of the control device.

16. The vehicle according to claim 15, characterized in that, The photovoltaic module includes a solar power generation module and a thermal power generation module. The solar power generation module includes a solar photovoltaic panel, and the thermal power generation module includes a heat collector, a heat dissipation pipe, and a thermoelectric converter. The solar photovoltaic panel is disposed on a first surface of the heat collector, and the heat dissipation pipe is disposed on a second surface of the heat collector. The output end of the heat dissipation pipe is connected to the thermoelectric converter.

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