Power supply circuit, control method of power supply circuit and vehicle
By designing a power supply circuit for a vehicle to control the allocation of low-voltage power, the problem that all power modules cannot be used when the vehicle is stopped is solved, and the effect of improving the user experience without increasing energy consumption is achieved.
Patent Information
- Application Number
- CN202311385208.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-24
- Publication Date
- 2025-04-25
AI Technical Summary
When the vehicle is stopped in use, the vehicle's power supply circuit stops providing low-voltage power to all power modules in the vehicle, resulting in all power modules being unavailable and poor user experience.
A power supply circuit is designed, including a low voltage power supply module, a power distribution module, a first power consumption module and a second power consumption module. When the vehicle is stopped, the low-voltage power supply is provided to some power consumption modules by controlling the power distribution modules to ensure that the user can continue to use these modules.
When the vehicle is stopped, the user can continue to use some power modules, which improves the user experience. At the same time, the vehicle's energy consumption is reduced by disconnecting the power supply of some power modules.
Smart Images
Figure CN119891417A_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of power supply technology, and in particular relates to a power supply circuit, a control method for the power supply circuit, and a vehicle. Background Technology
[0002] With the development of science and technology, vehicles have gradually become a common means of transportation in people's lives. Vehicles are equipped with electrical modules such as onboard refrigerators.
[0003] In related technologies, when a vehicle is not in use, its power supply circuit stops providing low-voltage power to all electrical modules, rendering all modules unusable and resulting in a poor user experience. This situation of the vehicle being out of use could be when the owner is away from the vehicle, for example, when the vehicle is parked in a parking lot and the owner is not inside. Summary of the Invention
[0004] This application provides a power supply circuit, a control method for the power supply circuit, and a vehicle, which can solve the problem that when the vehicle is not in use, the vehicle's power supply circuit stops providing low-voltage power to all electrical modules in the vehicle, making all electrical modules unusable and resulting in a poor user experience. When the vehicle is not in use, the user can still use some of the electrical modules in the vehicle, thereby improving the user experience.
[0005] In a first aspect, embodiments of this application provide a power supply circuit, the power supply circuit comprising:
[0006] Low-voltage power supply module;
[0007] A power distribution module is connected to a low-voltage power module. The power distribution module is used to distribute the low-voltage power from the low-voltage power module. The power distribution module includes a first power distribution submodule and a second power distribution submodule.
[0008] The first power consumption module is connected to the first power distribution submodule;
[0009] The second power module is connected to the second power distribution submodule;
[0010] In the first mode, the first power distribution submodule is connected to the first power consumption module, and the low-voltage power module provides low-voltage power to the first power consumption module through the first power distribution submodule. The second power distribution submodule is not connected to the second power consumption module.
[0011] In some alternative embodiments of the first aspect, the power supply circuit further includes:
[0012] High-voltage power supply module;
[0013] The high-low voltage conversion module is connected to the high-voltage power supply module, the low-voltage power supply module, and the power distribution module.
[0014] In the second mode, the high-low voltage conversion module converts the high-voltage power supply from the high-voltage power supply module into a low-voltage power supply and directly provides low-voltage power to the power distribution module, as well as provides low-voltage power to the power distribution module through the low-voltage power supply module. The first power distribution submodule is connected to the first power consumption module and provides low-voltage power to the first power consumption module. The second power distribution submodule is connected to the second power consumption module and provides low-voltage power to the second power consumption module. In the first mode, the vehicle is not in use.
[0015] In some alternative embodiments of the first aspect, the power supply circuit further includes:
[0016] The high-voltage power management module is connected to both the high-voltage power module and the low-voltage power module.
[0017] In the first mode, when the high-voltage power management module detects that the power level of the low-voltage power module is less than a first power threshold, the high-voltage power management module controls the high-voltage power module to provide low-voltage power to the low-voltage power module through the high-low voltage conversion module.
[0018] In some alternative embodiments of the first aspect, the power supply circuit further includes:
[0019] The high-voltage power management module is connected to both the high-voltage power module and the low-voltage power module.
[0020] In the first mode, when the high-voltage power management module detects that the power level of the low-voltage power module is greater than the second power threshold, the high-voltage power management module controls the high-voltage power module to stop providing high-voltage power to the high-low voltage conversion module.
[0021] In some alternative embodiments of the first aspect, the first power module includes a vehicle refrigerator, and the second power module includes other power modules besides the vehicle refrigerator.
[0022] In some alternative embodiments of the first aspect, the vehicle-mounted refrigerator includes:
[0023] The main body of the car refrigerator;
[0024] The detection submodule is connected to the main body of the vehicle refrigerator;
[0025] The control submodule is connected to both the detection submodule and the main body of the vehicle-mounted refrigerator.
[0026] In the first mode, when the detection submodule detects that there are items in the main body of the vehicle refrigerator, if the temperature inside the main body of the vehicle refrigerator is lower than a first temperature, the control submodule controls the main body of the vehicle refrigerator to be in a power-off state; if the temperature inside the main body of the vehicle refrigerator is higher than a second temperature, the control submodule controls the main body of the vehicle refrigerator to be in a power-on state, and the first temperature is lower than the second temperature.
[0027] In some alternative embodiments of the first aspect, the vehicle-mounted refrigerator includes:
[0028] The main body of the car refrigerator;
[0029] The detection submodule is connected to the main body of the vehicle refrigerator;
[0030] The control submodule is connected to both the detection submodule and the main body of the vehicle-mounted refrigerator.
[0031] In the first mode, if the detection submodule detects that there are no items in the main body of the vehicle refrigerator, and the temperature inside the main body of the vehicle refrigerator is lower than the first temperature, the control submodule controls the main body of the vehicle refrigerator to be in a power-off state; if the temperature inside the main body of the vehicle refrigerator is higher than the third temperature, the control submodule controls the main body of the vehicle refrigerator to be in a power-on state; the first temperature is lower than the third temperature.
[0032] In some alternative embodiments of the first aspect, the detection submodule includes a piezoresistive resistor and / or a temperature sensor.
[0033] Based on the same inventive concept, in a second aspect, embodiments of this application provide a control method for a power supply circuit. The control method is applied to the power supply circuit of any one of the first aspects, and the method includes:
[0034] In the first mode, the first power distribution submodule is connected to the first power consumption module, the low-voltage power module is controlled to provide low-voltage power to the first power consumption module through the first power distribution submodule, and the second power distribution submodule is not connected to the second power consumption module. In the first mode, the vehicle is not in use.
[0035] Based on the same inventive concept, in a third aspect, embodiments of this application provide a vehicle including a power supply circuit according to any one of the first aspects.
[0036] According to the power supply circuit, power supply circuit control method, and vehicle provided in the embodiments of this application, in the first mode, the first power distribution submodule is connected to the first power consumption module. At this time, the low-voltage power module can provide low-voltage power to the first power consumption module through the first power distribution submodule, so that the user can use the first power consumption module normally. That is, when the vehicle is not in use, the user can use some of the power consumption modules in the vehicle, thereby improving the user experience. At the same time, in the first mode, the second power distribution submodule is not connected to the second power consumption module, that is, the second power distribution submodule does not provide low-voltage power to the second power consumption module, and the user cannot use the second power consumption module, thus reducing the vehicle's energy consumption. Attached Figure Description
[0037] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0038] Figure 1 This is a schematic diagram of a power supply circuit provided in an embodiment of this application;
[0039] Figure 2 This is a schematic diagram of another power supply circuit provided in an embodiment of this application;
[0040] Figure 3 This is a schematic flowchart of a control method for a power supply circuit provided in an embodiment of this application;
[0041] Figure 4 This is a schematic diagram of a vehicle structure provided in an embodiment of this application.
[0042] Explanation of reference numerals in the attached figures:
[0043] 10. Power supply circuit; 11. Low-voltage power supply module; 12. Power distribution module; 121. First power distribution submodule; 122. Second power distribution submodule; 13. First power consumption module; 131. Vehicle refrigerator main body; 132. Detection submodule; 133. Control submodule; 14. Second power consumption module; 15. High-voltage power supply module; 16. High-low voltage conversion module; 17. High-voltage power management module; 100. Vehicle. Detailed Implementation
[0044] To better understand the above-mentioned objectives, features, and advantages of this application, the solution of this application will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0045] Many specific details are set forth in the following description to provide a thorough understanding of this application, but this application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of this application, and not all embodiments.
[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the term "comprising" or any other variations thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0047] Before describing the technical solutions provided in the embodiments of this application, in order to facilitate understanding of the embodiments of this application, this application first specifically explains the problems existing in the related technologies:
[0048] In related technologies, power is typically supplied to all electrical modules within the vehicle via a shared power distribution module. This means that all electrical modules are simultaneously connected to or disconnected from the low-voltage power supply under the control of the shared power distribution module. When the vehicle is not in use, the shared power distribution module stops supplying low-voltage power to all electrical modules, rendering them unusable and resulting in a poor user experience.
[0049] To address the problem in related technologies where, when a vehicle is not in use, the vehicle's power supply circuit stops providing low-voltage power to all electrical modules, rendering all electrical modules unusable and resulting in a poor user experience, this application provides a power supply circuit, a control method for the power supply circuit, and a vehicle. The power supply circuit provided in this application embodiment is described below.
[0050] Figure 1 This is a schematic diagram of a power supply circuit provided in an embodiment of this application.
[0051] like Figure 1As shown, the power supply circuit 10 provided in this application embodiment may include a low-voltage power supply module 11, a power distribution module 12, a first power consumption module 13, and a second power consumption module 14.
[0052] The low-voltage power module 11 may include a low-voltage battery, which can be used to provide low-voltage power. The low-voltage battery can provide low-voltage power to all electrical modules in the vehicle.
[0053] The power distribution module 12 can be connected to the low-voltage power module 11. The power distribution module 12 can be used to distribute the low-voltage power of the low-voltage power module 11. The power distribution module 12 may include a first power distribution submodule 121 and a second power distribution submodule 122.
[0054] The power distribution module 12 may be a device capable of distributing low-voltage power. For example, the power distribution module 12 may include a distribution box, which may be a small power distribution device.
[0055] For example, the power distribution module 12 can be connected to the low-voltage power module 11 via a power supply harness D. The power supply harness can be a harness capable of transmitting electrical energy.
[0056] The first power distribution submodule 121 can be a submodule that distributes low-voltage power to the first power consumption module 13, and the second power distribution submodule 122 can be a submodule that distributes low-voltage power to the second power consumption module 14.
[0057] For example, the first power distribution submodule 121 may include a power distribution box 1, and the second power distribution submodule 122 may include a power distribution box 2.
[0058] Understandably, Figure 1 and Figure 2 The power supply circuit 10 is illustrated by example, which includes a first power distribution submodule 121 and a second power distribution submodule 122. In actual implementation, the number of the first power distribution submodule 121 and the second power distribution submodule 122 can be set according to the actual situation, and the number of distribution boxes in each power distribution submodule can also be set according to the actual situation. There is no limitation here.
[0059] The first power module 13 can be connected to the first power distribution submodule 121.
[0060] For example, the first power module 13 can be connected to the first power distribution submodule 121 via the power supply harness E.
[0061] The second power module 14 can be connected to the second power distribution submodule 122.
[0062] For example, the second power module 14 can be connected to the second power distribution submodule 122 via the power supply harness F.
[0063] The first power module 13 can be a power module that can be used normally in the first mode.
[0064] The second power module 14 can be a power module that cannot be used normally in the first mode.
[0065] In some alternative implementations, the first power module 13 may include a vehicle refrigerator, and the second power module 14 may include other power modules besides the vehicle refrigerator. For example, the second power module 14 may include a temperature control module, and other control submodules 133 besides the control submodule 133 in the vehicle refrigerator. The temperature control module may include a device capable of temperature regulation, such as an air conditioner.
[0066] In some alternative embodiments, the first power module 13 may also include other power modules besides the vehicle refrigerator, such as a temperature control module. In this case, the second power module 14 may also include other modules besides the temperature control module.
[0067] In the first mode, the first power distribution submodule 121 is connected to the first power consumption module 13, and the low-voltage power module 11 provides low-voltage power to the first power consumption module 13 through the first power distribution submodule 121. The second power distribution submodule 122 is not connected to the second power consumption module 14. In the first mode, the vehicle is not in use.
[0068] The first mode can be the mode where the vehicle owner leaves the vehicle.
[0069] For example, in the first mode, the power supply harness E between the first power distribution submodule 121 and the first power consumption module 13 is connected. The low-voltage power supply of the low-voltage power module 11 is transmitted to the power distribution module 12 through the power supply harness D, and then the first power distribution submodule 121 transmits the low-voltage power supply to the first power consumption module 13 through the power supply harness E. The power supply harness F between the second power distribution submodule 122 and the second power consumption module 14 is not connected, and the second power distribution submodule 122 cannot supply power to the second power consumption module 14.
[0070] Optionally, a first switch module can be provided on the power supply harness E, so that when the first switch module is turned on, the first power distribution submodule 121 is connected to the first power consumption module 13, and when the first switch module is turned off, the first power distribution submodule 121 and the first power consumption module 13 are not connected. Similarly, a second switch module can be provided on the power supply harness F, so that when the second switch module is turned on, the second power distribution submodule 122 is connected to the second power consumption module 14, and when the second switch module is turned off, the first power distribution submodule 121 and the first power consumption module 13 are not connected.
[0071] Both the first and second switching modules can include transistors such as triodes and metal-oxide-semiconductor field-effect transistors (MOS).
[0072] According to the power supply circuit 10 provided in the embodiments of this application, in the first mode, the first power distribution submodule 121 is connected to the first power consumption module 13. At this time, the low-voltage power module 11 can provide low-voltage power to the first power consumption module 13 through the first power distribution submodule 121, so that the user can use the first power consumption module 13 normally. That is, when the vehicle is not in use, the user can use some of the power consumption modules in the vehicle, thereby improving the user experience. At the same time, in the first mode, the second power distribution submodule 122 is not connected to the second power consumption module 14, that is, the second power distribution submodule 122 does not provide low-voltage power to the second power consumption module 14, and the user cannot use the second power consumption module 14, thus reducing the vehicle's energy consumption.
[0073] In some alternative implementations, such as Figure 2 As shown, the power supply circuit 10 may also include a high-voltage power supply module 15 and a high-low voltage conversion module 16.
[0074] The high-voltage power module 15 can be a module that provides high-voltage power to a vehicle. The high-voltage power module 15 may include a high-voltage battery, which can be used to provide high-voltage power.
[0075] The high-low voltage conversion module 16 is connected to the high-voltage power supply module 15, the low-voltage power supply module 11, and the power distribution module 12.
[0076] The high-low voltage conversion module 16 may include a high-low voltage (DC-DC) converter. The high-low voltage conversion module 16 can be used to convert high-voltage power to low-voltage power.
[0077] For example, the high-low voltage conversion module 16 can be connected to the high-voltage power module 15 via power supply harness A, the high-low voltage conversion module 16 can be connected to the low-voltage power module 11 via power supply harness B, and the high-low voltage conversion module 16 can be connected to the power distribution module 12 via power supply harness C.
[0078] In the second mode, the high-low voltage conversion module 16 converts the high-voltage power supply of the high-voltage power supply module 15 into a low-voltage power supply and directly provides low-voltage power to the power distribution module 12, and also provides low-voltage power to the power distribution module 12 through the low-voltage power supply module 11. The first power distribution submodule 121 is connected to the first power consumption module 13 and provides low-voltage power to the first power consumption module 13. The second power distribution submodule 122 is connected to the second power consumption module 14 and provides low-voltage power to the second power consumption module 14.
[0079] In this embodiment, in the second mode, after converting the high-voltage power supply of the high-voltage power supply module 15 to a low-voltage power supply, the high-low voltage conversion module 16 can directly or indirectly provide low-voltage power to the power distribution module 12. The first power distribution submodule 121 is connected to the first power consumption module 13, and provides low-voltage power to the first power consumption module 13. The second power distribution submodule 122 is connected to the second power consumption module 14, and provides low-voltage power to the second power consumption module 14. Thus, both the first power consumption module 13 and the second power consumption module 14 can be used normally.
[0080] The second mode is the mode in which the vehicle owner has not left the vehicle, which is the normal mode.
[0081] For example, in the second mode, the high-voltage power module 15 provides high-voltage power to the high-low voltage conversion module 16 via power supply harness A. After the high-low voltage conversion module 16 converts the high-voltage power to low-voltage power, it sequentially provides low-voltage power to the power distribution module 12 via power supply harness B and power supply harness D of the low-voltage power module 11. Simultaneously, it also provides low-voltage power to the power distribution module 12 via power supply harness C. Power supply harness E is connected, and the first power distribution submodule 121 provides low-voltage power to the first power consumption module 13 via power supply harness E. Furthermore, power supply harness F is connected, and the second power distribution submodule 122 provides low-voltage power to the second power consumption module 14 via power supply harness F.
[0082] Understandably, the low-voltage power supply module 11 can also be used to ensure stable power supply to the high-low voltage conversion module 16.
[0083] In some alternative implementations, the power supply circuit 10 may also include a high-voltage power management module 17.
[0084] The high-voltage power management module 17 is connected to both the high-voltage power module 15 and the low-voltage power module 11.
[0085] For example, the high-voltage power management module 17 can be connected to the low-voltage power module 11 via a controller area network (CAN) bus, and the high-voltage power management module 17 can also be connected to the high-voltage power module 15 via a CAN bus.
[0086] The high-voltage power management module 17 may include a high-voltage power manager. The high-voltage power manager can power the entire vehicle and can also be used to manage the temperature of the high-voltage power module 15.
[0087] In the first mode, when the high-voltage power management module 17 detects that the power of the low-voltage power module 11 is less than the first power threshold, the high-voltage power management module 17 controls the high-voltage power module 15 to provide low-voltage power to the low-voltage power module 11 through the high-low voltage conversion module 16.
[0088] In this embodiment, in the first mode, when the high-voltage power management module 17 detects that the power of the low-voltage power module 11 is less than the first power threshold, it is considered that the low-voltage power module 11 needs to be charged. The high-voltage power management module 17 controls the high-voltage power module 15 to provide low-voltage power to the low-voltage power module 11 through the high-low voltage conversion module 16, so as to provide low-voltage power to the low-voltage power module 11 in a timely manner.
[0089] Understandably, in the first mode, the power distribution module 12 can disconnect the power supply harness C, the high-voltage power module 15 will not start, and the first power-consuming module 13 will preferentially draw power from the voltage power module. This can improve the problem of high energy consumption caused by the high-voltage power module 15 needing heat dissipation during startup, thus reducing the vehicle's energy consumption. When the high-voltage power management module 17 detects that the power level of the low-voltage power module 11 is less than the first power threshold, the high-voltage power module 15 starts. The high-voltage power of the high-voltage power module 15 is converted to low-voltage power through the power supply harness A and the high-low voltage converter, and the low-voltage power is transmitted to the low-voltage power module 11 through the power supply harness B.
[0090] The first power threshold can be set according to the actual situation and is not limited here. For example, the first power threshold can be 20% of the total power of the low-voltage battery, or it can be 15% of the total power of the low-voltage battery, etc.
[0091] It should be noted that in the first mode, when the high-voltage power management module 17 detects that the power of the low-voltage power module 11 is greater than or equal to the first power threshold, and the high-voltage power management module 17 controls the high-voltage power module 15 to stop providing low-voltage power to the low-voltage power module 11 through the high-low voltage conversion module 16, it is considered that the low-voltage power module 11 does not need to be charged, and the high-voltage power management module 17 still controls the high-voltage power module 15 to stop providing low-voltage power to the low-voltage power module 11 through the high-low voltage conversion module 16.
[0092] In some alternative implementations, in the first mode, when the high-voltage power management module 17 detects that the power of the low-voltage power module 11 is greater than the second power threshold, the high-voltage power management module 17 controls the high-voltage power module 15 to stop providing high-voltage power to the high-low voltage conversion module 16.
[0093] In this embodiment, in the first mode, when the high-voltage power management module 17 detects that the power of the low-voltage power module 11 is greater than the second power threshold, it considers that the power of the low-voltage power module 11 is sufficient. At this time, the high-voltage power management module 17 controls the high-voltage power module 15 to stop providing high-voltage power to the high-low voltage conversion module 16, so as to reduce the energy consumption of the high-voltage power module 15 and thus reduce the energy consumption of the vehicle.
[0094] The first power threshold is less than the second power threshold.
[0095] The second power threshold can be set according to actual conditions and is not limited here. For example, the second power threshold can be 90% of the total power of the low-voltage battery, or it can be 100% of the total power of the low-voltage battery, etc.
[0096] Understandably, in the first mode, the second power module 14 maintains a low-energy consumption state.
[0097] It should be noted that in the first mode, when the high voltage power management module 17 detects that the power of the low voltage power module 11 is less than or equal to the second power threshold, and the high voltage power management module 17 controls the high voltage power module 15 to provide high voltage power to the high-low voltage conversion module 16, it is considered that the power of the low voltage power module 11 is not sufficient, and the high voltage power management module 17 controls the high voltage power module 15 to provide high voltage power to the high-low voltage conversion module 16.
[0098] In some alternative implementations, where the first power module 13 includes a vehicle refrigerator, the vehicle refrigerator (not shown) may include a vehicle refrigerator body 131, a detection submodule 132, and a control submodule 133.
[0099] The vehicle refrigerator body 131 can be used to preserve items placed inside the vehicle refrigerator body 131 at low temperatures.
[0100] The detection submodule 132 is connected to the main body 131 of the vehicle refrigerator.
[0101] The detection submodule 132 can be used to detect the temperature inside the main body 131 of the vehicle refrigerator, and to detect whether there are any items inside the main body 131 of the vehicle refrigerator.
[0102] In some alternative implementations, the detection submodule 132 may include a varistor and / or a temperature sensor.
[0103] For example, the detection submodule 132 can be connected to the vehicle refrigerator body 131 via a CAN bus.
[0104] The control submodule 133 is connected to the detection submodule 132 and the vehicle refrigerator body 131.
[0105] For example, the control submodule 133 can be connected to the vehicle refrigerator body 131 via a CAN bus.
[0106] The control submodule 133 can be used to control whether the main body 131 of the vehicle refrigerator is connected to a low-voltage power supply. The control submodule 133 may include a controller.
[0107] In the first mode, when the detection submodule 132 detects that there are items in the vehicle refrigerator body 131, if the temperature inside the vehicle refrigerator body 131 is lower than the first temperature, the control submodule 133 controls the vehicle refrigerator body 131 to be in a power-off state; if the temperature inside the vehicle refrigerator body 131 is higher than the second temperature, the control submodule 133 controls the vehicle refrigerator body 131 to be in a power-on state; the first temperature is lower than the second temperature.
[0108] In this embodiment, in the first mode, when the detection submodule 132 detects that there are items in the vehicle refrigerator body 131 and the temperature inside the vehicle refrigerator body 131 is lower than a first temperature, the control submodule 133 controls the vehicle refrigerator body 131 to be in a power-off state, which can reduce the energy consumption of the vehicle refrigerator and thus reduce the energy consumption of the vehicle; and when the detection submodule 132 detects that there are items in the vehicle refrigerator body 131 and the temperature inside the vehicle refrigerator body 131 is higher than a second temperature, the control submodule 133 controls the vehicle refrigerator body 131 to be in a power-on state, which ensures the temperature maintenance effect of the vehicle refrigerator and prevents the items inside the vehicle refrigerator from spoiling.
[0109] The items can be things that require low-temperature preservation.
[0110] In other words, the temperature inside the vehicle refrigerator body 131 is maintained between the first temperature and the second temperature.
[0111] The first and second temperatures can be set according to actual conditions and are not limited here. For example, the first temperature can be 2℃ and the second temperature can be 6℃.
[0112] Understandably, when the vehicle refrigerator body 131 is in a power-off state, the vehicle refrigerator body 131 stops cooling; when the vehicle refrigerator body 131 is in a power-on state, the vehicle refrigerator body 131 starts cooling.
[0113] For example, the control submodule 133 can also be connected to the first switch module. The vehicle refrigerator body 131 can be powered on by controlling the first switch module to be in a conducting state, or the vehicle refrigerator body 131 can be powered off by controlling the second switch module to be in a disconnected state.
[0114] Understandably, when there are items inside the vehicle refrigerator body 131, the weight of the vehicle refrigerator body 131 will change, the resistance of the varistor will also change, and the current detected by the control submodule 133 will also change. Therefore, it can be determined whether there are items in the vehicle refrigerator body 131 based on whether the current detected by the control submodule 133 changes.
[0115] It should be noted that, in this embodiment of the application, the control submodule 133 communicates only with the power distribution module 12 in the first mode through a special network management mechanism, without having to wake up other modules of the vehicle other than the control submodule 133 and the power distribution module 12, thereby reducing the power consumption of the vehicle.
[0116] Understandably, when the first power module 13 includes a vehicle refrigerator, the first mode can be the temperature-maintaining power supply mode for the vehicle refrigerator, and the second mode can be the normal power supply mode for the vehicle refrigerator.
[0117] In some alternative implementations, in the first mode, if the detection submodule 132 detects that there are no items in the vehicle refrigerator body 131, and the temperature inside the vehicle refrigerator body 131 is lower than a first temperature, the control submodule 133 controls the vehicle refrigerator body 131 to be in a power-off state; if the temperature inside the vehicle refrigerator body 131 is higher than a third temperature, the control submodule 133 controls the vehicle refrigerator body 131 to be in a power-on state, and the first temperature is lower than the third temperature.
[0118] In this embodiment, in the first mode, if the detection submodule 132 detects that there are no items in the vehicle refrigerator body 131, and the temperature inside the vehicle refrigerator body 131 is lower than the first temperature, the control submodule 133 controls the vehicle refrigerator body 131 to be in a power-off state, which can reduce the energy consumption of the vehicle refrigerator and thus reduce the energy consumption of the vehicle; if the temperature inside the vehicle refrigerator body 131 is higher than the third temperature, the control submodule 133 controls the vehicle refrigerator body 131 to be in a power-on state, which can improve the problem that the vehicle refrigerator is limited by its cooling efficiency and cannot immediately reach the operating temperature, thus ensuring the temperature maintenance effect of the vehicle refrigerator.
[0119] Optionally, the third temperature is greater than the second temperature.
[0120] In other words, the temperature inside the vehicle refrigerator body 131 is maintained between the first temperature and the third temperature.
[0121] The third temperature can be set according to the actual situation and is not limited here. For example, the first temperature can be 2℃ and the third temperature can be 9℃.
[0122] Based on the same inventive concept, embodiments of this application also provide a control method for a power supply circuit. The control method for a power supply circuit provided in embodiments of this application is described below.
[0123] Figure 3 This is a schematic flowchart illustrating a control method for a power supply circuit provided in an embodiment of this application.
[0124] The control method for the power supply circuit provided in this application embodiment can be applied to the power supply circuit in the above embodiments. For example... Figure 3 As shown, the control method for the power supply circuit provided in this application embodiment may include S310.
[0125] S310. In the first mode, the first power distribution submodule is connected to the first power consumption module, the low-voltage power module is controlled to provide low-voltage power to the first power consumption module through the first power distribution submodule, and the second power distribution submodule is not connected to the second power consumption module. In the first mode, the vehicle is stopped from use.
[0126] According to the power supply circuit control method provided in the embodiments of this application, in the first mode, the first power distribution submodule is connected to the first power consumption module. At this time, the low-voltage power module can provide low-voltage power to the first power consumption module through the first power distribution submodule, so that the user can use the first power consumption module normally. That is, when the vehicle is not in use, the user can use some of the power consumption modules in the vehicle, thereby improving the user experience. At the same time, in the first mode, the second power distribution submodule is not connected to the second power consumption module, that is, the second power distribution submodule does not provide low-voltage power to the second power consumption module, and the user cannot use the second power consumption module, thus reducing the vehicle's energy consumption.
[0127] The main body executing the control method of the power supply circuit can be a vehicle central control unit, etc.
[0128] In some optional implementations, the power supply circuit also includes a high-voltage power module, and the high-low voltage conversion module is connected to the high-voltage power module, the low-voltage power module, and the power distribution module.
[0129] Control methods also include:
[0130] In the second mode, the high-low voltage conversion module is controlled to convert the high-voltage power supply of the high-voltage power supply module into a low-voltage power supply and directly provide low-voltage power to the power distribution module, as well as provide low-voltage power to the power distribution module through the low-voltage power supply module. The first power distribution submodule is controlled to connect with the first power consumption module and provide low-voltage power to the first power consumption module. The second power distribution submodule is controlled to connect with the second power consumption module and provide low-voltage power to the second power consumption module.
[0131] It is understood that the control method of the power supply circuit provided in the embodiments of this application has the same or similar beneficial effects as the power supply circuit, and will not be described again here.
[0132] Based on the same inventive concept, such as Figure 4 As shown, this application embodiment provides a vehicle 100, which includes the power supply circuit 10 in the above embodiment. The vehicle has the same or similar beneficial effects as the power supply circuit in the above embodiment, and will not be described again here.
[0133] The functional blocks shown in the above block diagram can be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, they can be, for example, electronic circuits, application-specific integrated circuits (ASICs), appropriate firmware, plug-ins, function cards, etc. When implemented in software, the elements of this application are programs or code segments used to perform the required tasks. Programs or code segments can be stored on a machine-readable medium or transmitted over a transmission medium or communication link via data signals carried on a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio frequency (RF) links, etc. Code segments can be downloaded via computer networks such as the Internet, intranets, etc.
[0134] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0135] This document uses specific examples to illustrate the principles and implementation methods of this application. The examples are provided only to help understand the methods and core ideas of this application. The above are merely optional implementation methods of this application. It should be noted that due to the limitations of written expression, and the existence of an infinite number of specific structures, those skilled in the art can make various improvements, modifications, or variations without departing from the principles of this application, and can also combine the above technical features in an appropriate manner. These improvements, modifications, variations, or combinations, or the direct application of the concept and technical solution of this application to other situations without modification, should all be considered within the scope of protection of this application.
Claims
1. A power supply circuit, characterized in that: include: Low voltage power supply module; A power distribution module connected to the low-voltage power supply module, the power distribution module is used to distribute the low-voltage power supply of the low-voltage power supply module, and the power distribution module includes a first power distribution submodule and a second power distribution submodule; A first power consumption module connected to the first power distribution submodule; A second power consumption module connected to the second power distribution submodule; Among them, in the first mode, the first power distribution submodule is connected with the first power consumption module, the low-voltage power module provides the low-voltage power to the first power consumption module through the first power distribution submodule, and the second power distribution submodule is not connected with the second power consumption module. In the first mode, the vehicle is out of use.
2. The power supply circuit according to claim 1, characterized in that: The power supply circuit also includes: High voltage power supply module; A high-low voltage conversion module, connected to the high-voltage power supply module, the low-voltage power supply module, and the power distribution module; Among them, in the second mode, the high-low voltage conversion module converts the high-voltage power supply of the high-voltage power supply module into a low-voltage power supply, and directly provides the low-voltage power supply to the power distribution module, and provides the low-voltage power supply to the power distribution module through the low-voltage power supply module, the first power distribution submodule is connected with the first power-consuming module, the first power distribution submodule provides the low-voltage power supply to the first power-consuming module, the second power distribution submodule is connected with the second power-consuming module, and the second power distribution submodule provides the low-voltage power supply to the second power-consuming module.
3. The power supply circuit according to claim 2, characterized in that: The power supply circuit further includes: A high-voltage power management module, connected to both the high-voltage power module and the low-voltage power module; Among them, in the first mode, when the high-voltage power management module monitors that the power of the low-voltage power module is less than a first power threshold, the high-voltage power management module controls the high-voltage power module to provide the low-voltage power to the low-voltage power module through the high-low voltage conversion module.
4. The power supply circuit according to claim 3, characterized in that: The power supply circuit further includes: A high-voltage power management module, connected to both the high-voltage power module and the low-voltage power module; Among them, in the first mode, when the high-voltage power management module monitors that the power of the low-voltage power module is greater than a second power threshold, the high-voltage power management module controls the high-voltage power module to stop providing high-voltage power to the high-low voltage conversion module.
5. The power supply circuit according to claim 1, characterized in that: The first power-consuming module includes a vehicle-mounted refrigerator, and the second power-consuming module includes other power-consuming modules except the vehicle-mounted refrigerator.
6. The power supply circuit according to claim 5, characterized in that: The vehicle refrigerator comprises: Car refrigerator body; A detection submodule, connected to the vehicle refrigerator body; A control submodule, connected to both the detection submodule and the vehicle refrigerator body; Among them, in the first mode, when the detection submodule detects that there are items in the vehicle refrigerator body, if the temperature inside the vehicle refrigerator body is lower than the first temperature, the control submodule controls the vehicle refrigerator body to be in a power-off state; if the temperature inside the vehicle refrigerator body is higher than the second temperature, the control submodule controls the vehicle refrigerator body to be in a power-on state, and the first temperature is lower than the second temperature.
7. The power supply circuit according to claim 5, characterized in that: The vehicle refrigerator comprises: Car refrigerator body; A detection submodule, connected to the vehicle refrigerator body; A control submodule, connected to both the detection submodule and the vehicle refrigerator body; Among them, in the first mode, when the detection submodule detects that there are no items in the vehicle refrigerator body, if the temperature inside the vehicle refrigerator body is lower than the first temperature, the control submodule controls the vehicle refrigerator body to be in a power-off state; if the temperature inside the vehicle refrigerator body is higher than the third temperature, the control submodule controls the vehicle refrigerator body to be in a power-on state; the first temperature is lower than the third temperature. 8 . The power supply circuit according to claim 6 , wherein the detection submodule comprises a varistor and / or a temperature sensor.
9. A method for controlling a power supply circuit, characterized in that: Applied to the power supply circuit according to any one of claims 1 to 8, the method comprises: In the first mode, the first power distribution submodule is controlled to be connected with the first power consumption module, the low-voltage power module is controlled to provide the low-voltage power to the first power consumption module through the first power distribution submodule, and the second power distribution submodule is controlled to be disconnected from the second power consumption module. In the first mode, the vehicle is stopped from use.
10. A vehicle, characterized in that: The invention comprises a power supply circuit as claimed in any one of claims 1 to 8.