Power supply system and vehicle

Abstract

This application discloses a power supply system and a vehicle, belonging to the field of vehicle technology. The power supply system, applied to a vehicle, includes multiple area controllers. The power supply system includes: a main power supply unit connected to at least one area controller; and a first independent power supply unit connected to a first area controller, which is connected to safety control loads and vehicle unlocking loads. According to the power supply system of this application, by setting up an independent power supply unit dedicated to supplying power to the first area controller connected to the loads related to safety and vehicle unlocking, when the main power supply unit fails, since the first independent power supply unit is an independent power source, the power supply to the first area controller and its connected loads related to safety and vehicle unlocking will not be interrupted. This ensures the continuous operation of vehicle safety and vehicle unlocking functions under extreme conditions, improving the overall reliability of the vehicle.

Description

Technical Field

[0001] This application belongs to the field of vehicle technology, and in particular relates to a power supply system and a vehicle. Background Technology

[0002] As automotive electronic and electrical architecture evolves from distributed to centralized, the Zone Controller Unit (ZCU) architecture has become the mainstream solution for current intelligent vehicles. With the increasing demands of users and the significant increase in the number of vehicle loads, each zone controller faces a severe test of its power supply capacity under high load and multi-tasking operation.

[0003] Traditional centralized power supply systems have a significant risk of single point of failure. If the main power supply fails, the power supply to the entire system will be affected, resulting in low reliability. Summary of the Invention

[0004] This application aims to at least solve one of the technical problems existing in the prior art. To this end, this application proposes a power supply system and vehicle in which, when the main power supply unit fails, the power supply to the first independent power supply unit and its electrically connected loads related to safety and vehicle unlocking will not be interrupted, since the first independent power supply unit is an independent power source, thereby improving the reliability of the entire vehicle.

[0005] In a first aspect, this application provides a power supply system for use in a vehicle, the vehicle including multiple zone controllers, the power supply system comprising:

[0006] The main power supply unit is electrically connected to at least one area controller;

[0007] The first independent power supply unit is electrically connected to the first area controller, which is communicatively connected to the safety control load and the vehicle unlocking load.

[0008] According to the power supply system of this application, by setting up an independent power supply unit separate from the main power supply unit to supply power to the first area controller that is communicatively connected to the loads related to safety and vehicle unlocking, when the main power supply unit fails, since the first independent power supply unit is an independent power source, the power supply to the first area controller and its electrically connected loads related to safety and vehicle unlocking will not be interrupted, thereby ensuring the continuous operation of vehicle safety and vehicle unlocking functions under extreme conditions and improving the reliability of the whole vehicle.

[0009] According to one embodiment of this application, a plurality of area controllers include a second area controller and a third area controller, a main power supply unit is electrically connected to the first area controller and the second area controller respectively, and the third area controller is electrically connected to the first area controller.

[0010] According to one embodiment of this application, the number of third area controllers is multiple.

[0011] According to one embodiment of this application, the electrical connection lines between the main power supply unit and the first area controller, the electrical connection lines between the main power supply unit and the second area controller, and the electrical connection lines between the third area controller and the first area controller are all rigid wire harnesses.

[0012] According to one embodiment of this application, the rigid wire harness is a copper busbar or an aluminum busbar.

[0013] According to one embodiment of this application, the power supply system further includes:

[0014] The first branch unit has its first end electrically connected to the main power supply unit, and its second end electrically connected to the first area controller and the second area controller, respectively.

[0015] The second branch unit has its first end electrically connected to the first area controller, and its second end electrically connected to each of the third area controllers.

[0016] According to one embodiment of this application, the power supply system further includes:

[0017] The second independent power supply unit is independent of the main power supply unit and the first independent power supply unit. The second independent power supply unit is electrically connected to any of the multiple area controllers except the first area controller.

[0018] According to one embodiment of this application, a first area controller is communicatively connected to the unlocking load on the left side of the vehicle, and the plurality of area controllers further include a second area controller communicatively connected to the unlocking load on the right side of the vehicle, and a second independent power supply unit is electrically connected to the second area controller.

[0019] According to one embodiment of this application, the power supply system further includes:

[0020] Multiple disconnect switches are installed at the power supply ports of each area controller.

[0021] According to one embodiment of this application, the power supply system further includes:

[0022] An auxiliary power supply unit is electrically connected to at least one area controller.

[0023] Secondly, this application provides a vehicle including the aforementioned power supply system.

[0024] According to the vehicle of this application, by setting up a first area controller that is independently powered by a power supply unit separate from the main power supply unit and specifically connected to the loads related to safety and vehicle unlocking, when the main power supply unit fails, since the first independent power supply unit is an independent power source, the power supply to the first area controller and its electrically connected loads related to safety and vehicle unlocking will not be interrupted, thereby ensuring the continuous operation of vehicle safety and vehicle unlocking functions under extreme conditions and improving the reliability of the whole vehicle.

[0025] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0026] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0027] Figure 1 This is one of the structural block diagrams of the power supply system provided in the embodiments of this application;

[0028] Figure 2 This is the second structural block diagram of the power supply system provided in the embodiments of this application;

[0029] Figure 3 This is one of the connection diagrams of the power supply system provided in this application embodiment in a vehicle;

[0030] Figure 4 This is the second schematic diagram of the power supply system connection in a vehicle provided in the embodiments of this application;

[0031] Figure 5 This is the third structural block diagram of the power supply system provided in the embodiments of this application;

[0032] Figure 6 This is the third schematic diagram of the power supply system connection in a vehicle provided in the embodiments of this application;

[0033] Figure 7 This is the fourth structural block diagram of the power supply system provided in the embodiments of this application;

[0034] Figure 8 This is the third schematic diagram of the power supply system connection in a vehicle provided in the embodiments of this application.

[0035] Figure label:

[0036] Main power supply unit 10, first area controller 21, second area controller 22, third area controller 23, left area controller 31, right area controller 32, front area controller 33, rear area controller 34, first independent power supply unit 41, second independent power supply unit 42, first branch line unit 51, second branch line unit 52, auxiliary power supply unit 60, disconnect switch K. Detailed Implementation

[0037] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0038] In the following description, a "circuit" refers to a conductive loop consisting of at least one element or sub-circuit connected by an electrical or electromagnetic link. When an element or circuit is said to be "coupled to" or "connected to" another element, or when an element / circuit is said to be "coupled at" or "connected at" two nodes, it can be directly coupled to or connected to the other element, or there may be intermediate elements. The connection between elements can be physical, logical, or a combination thereof. Conversely, when an element is said to be "directly coupled to" or "directly connected to" another element, it means that there are no intermediate elements between them.

[0039] In the description, the terms "first," "second," etc., are used to distinguish similar objects, not to describe a specific order or sequence. It should be understood that such numerical descriptors can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0040] Furthermore, the use of terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicates that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] With the continuous development of intelligent and automated technologies, users' functional demands on vehicles are increasing. Various advanced driver assistance systems, infotainment systems, and in-vehicle communication modules are being integrated into vehicle systems, leading to a significant increase in the overall vehicle load. Traditional automotive electronic architectures struggle to meet these complex requirements, prompting the emergence of Zone Controller Unit (ZCU) architecture, which has become a key component of intelligent vehicles. The ZCU architecture optimizes the performance, cost, and wiring complexity of automotive electronic systems by centralizing multiple control modules into a single zone controller.

[0042] However, as regional controllers become increasingly reliant on efficient and stable power supplies, their power requirements increase significantly under high load and multi-tasking conditions. This places higher demands on the reliability and power supply capacity of the power supply system. Traditional centralized power supply systems suffer from significant single-point-of-failure risks. If the main power supply fails, the power supply to the entire system will be affected, potentially leading to the paralysis of onboard electronic equipment and directly impacting the normal operation and safety of the vehicle. Therefore, traditional power supply systems face lower reliability and higher failure risks, a problem that is particularly pronounced in intelligent vehicles with high power demands and complex operations.

[0043] Figure 1 A structural block diagram of a power supply system provided in an embodiment of this application is shown. (Refer to...) Figure 1 One embodiment of this application proposes a power supply system for a vehicle, the vehicle including multiple area controllers. The power supply system includes a main power supply unit 10 and a first independent power supply unit 41. The main power supply unit 10 is electrically connected to at least one area controller; the first independent power supply unit 41 is independent of the main power supply unit 10 and is electrically connected to a first area controller 21, the first area controller 21 being communicatively connected to loads related to security and vehicle unlocking.

[0044] A zone controller is a distributed control node deployed across physical zones within a vehicle's electrical and electronic architecture. It manages the power supply, communication, signal routing, and basic control functions of all electronic devices within that zone. By centrally integrating the control of multiple functional modules into a single zone controller, system complexity can be reduced, and response speed and management efficiency can be improved.

[0045] The number of area controllers can be selected according to the actual application scenario, and is not limited here. For example, a vehicle may include three area controllers: a left area controller 31, a right area controller 32, and a front area controller 33.

[0046] The power supply system is mainly used to provide power to the various area controllers in the vehicle. The power supply system proposed in this application includes a main power supply unit 10 and a first independent power supply unit 41.

[0047] The main power supply unit 10 is the core power module of the entire system, responsible for providing power to at least one area controller to ensure its normal operation. The structure of the main power supply unit 10 can be selected according to the actual application scenario, and is not limited here. For example, the main power supply unit 10 may include a switching power supply, which is used to convert the high-voltage power from the vehicle battery pack into stable low-voltage DC power to supply the area controller.

[0048] The number of area controllers electrically connected to the main power supply unit 10 can also be selected according to the actual application scenario, and is not limited here. For example, the main power supply unit 10 can be electrically connected to the first area controller 21 and the second area controller 22.

[0049] The first independent power supply unit 41 operates independently of the main power supply unit 10 and is primarily used to provide independent power support for the first area controller 21. The first area controller 21 is a control unit for a specific area within the vehicle and is typically connected in communication with critical loads such as the vehicle's safety functions and unlocking system. The first independent power supply unit 41 ensures that when the vehicle is involved in a collision or a single point of failure occurs at any location on the vehicle, the vehicle's safety functions (such as vehicle unlocking and braking systems) remain unaffected and can operate stably at all times, facilitating rescue operations.

[0050] The specific location of the first area controller 21 varies in different vehicle models. The following explanation uses the left area controller 31 as an example. It is understood that the left area controller 31 can communicate with loads related to the braking system and the unlocking of the left door.

[0051] It should be noted that the first independent power supply unit 41 is only used to provide power to a single area controller, and based on considerations such as cost and size, the power supply capacity of the first independent power supply unit 41 may be lower than that of the main power supply unit 10.

[0052] The structure of the first independent power supply unit 41 can be selected according to the actual application scenario, and is not limited here. For example, the first independent power supply unit 41 can be a battery.

[0053] According to the power supply system of this application, by setting up a first area controller 21 that is independently powered by the main power supply unit 10 and is specifically connected to the loads related to safety and vehicle unlocking, when the main power supply unit 10 fails, since the first independent power supply unit 41 is an independent power source, the power supply to the first area controller 21 and its electrically connected loads related to safety and vehicle unlocking will not be interrupted, thereby ensuring the continuous operation of vehicle safety and vehicle unlocking functions under extreme conditions and improving the reliability of the whole vehicle.

[0054] Figure 2 A structural block diagram of a power supply system provided in an embodiment of this application is shown. (Refer to...) Figure 2 In some embodiments, the multiple area controllers include a second area controller 22 and a third area controller 23. The main power supply unit 10 is electrically connected to the first area controller 21 and the second area controller 22, respectively, and the third area controller 23 is electrically connected to the first area controller 21.

[0055] The main power supply unit 10 is electrically connected to the first area controller 21 and the second area controller 22, respectively, that is, the first area controller 21 and the second area controller 22 are connected in parallel. The third area controller 23 is electrically connected to the first area controller 21, that is, the third area controller 23 is connected in series with the first area controller 21.

[0056] The main power supply unit 10 serves as a primary power distribution unit to supply power to the first area controller 21 and the second area controller 22. The first area controller 21 serves as a secondary power distribution unit to supply power to the third area controller 23.

[0057] The series-parallel power supply architecture is adopted. The third area controller 23 is connected in series with the first area controller 21, which simplifies the wiring harness layout, enables local power distribution in the area, and saves line length. The parallel connection of the first area controller 21 and the second area controller 22 can reduce the current flowing through the first area controller 21 and the second area controller 22, and reduce the heat dissipation design pressure of the domain controller.

[0058] The specific locations of the first area controller 21, the second area controller 22, and the third area controller 23 can be determined according to the actual application scenario, and are not limited here.

[0059] Figure 3 A schematic diagram of the electrical connections of the power supply system provided in an embodiment of this application in a vehicle is shown. (Refer to...) Figure 3 As an example, the first area controller is the right area controller 32, the second area controller is the rear area controller 34, and the third area controller is the left area controller 31. That is, the main power supply unit 10 is electrically connected to the right area controller 32 and the rear area controller 34 respectively, and the left area controller 31 is electrically connected to the right area controller 32.

[0060] Figure 4 A schematic diagram of the electrical connections of the power supply system provided in an embodiment of this application in a vehicle is shown. (Refer to...) Figure 4 As another example, the first area controller is the right area controller 32, the second area controller is the front area controller 33, and the third area controller is the left area controller 31. That is, the main power supply unit 10 is electrically connected to the right area controller 32 and the front area controller 33, respectively, and the left area controller 31 is electrically connected to the right area controller 32.

[0061] It should be noted that the types of area controllers and electrical connections listed above are merely illustrative and not an exhaustive list of the proposed solutions. Any modifications, equivalent substitutions, improvements, or variations made within the spirit and principles of this invention, as well as any other reasonable implementation mode, should be included within the scope of protection of this invention.

[0062] Figure 5 A structural block diagram of a power supply system provided in an embodiment of this application is shown. (Refer to...) Figure 5 In some embodiments, there are multiple third area controllers 23.

[0063] The number of area controllers can be determined based on vehicle type and user needs, and is not limited here.

[0064] Figure 6 A schematic diagram of the electrical connections of the power supply system provided in an embodiment of this application in a vehicle is shown. (Refer to...) Figure 6 As an example, there are two third area controllers: a front area controller 33 and a left area controller 31. The first area controller is the right area controller 32, and the second area controller is the rear area controller 34. That is, the main power supply unit 10, as a primary power distribution unit, provides power to the right area controller 32 and the rear area controller 34, while the right area controller 32, as a secondary power distribution unit, supplies power to the front area controller 33 and the left area controller 31.

[0065] In the aforementioned example, the front area controller 33 and the left area controller 31 are connected in parallel, which can reduce the current flowing through the front area controller 33 and the left area controller 31, thus reducing the heat dissipation design pressure of the front area controller 33 and the left area controller 31; and the front area controller 33 is connected in series with the right area controller 32, and the left area controller 31 is also connected in series with the right area controller 32, so as to realize the local power distribution of the area and save the line length.

[0066] In some embodiments, the electrical connection lines between the main power supply unit 10 and the first area controller 21, the electrical connection lines between the main power supply unit 10 and the second area controller 22, the electrical connection lines between the third area controller 23 and the first area controller 21, and the electrical connection lines between the fourth area controller and the first area controller 21 are all rigid wire harnesses.

[0067] The electrical connection lines between the main power supply unit 10 and each area controller, as well as the electrical connection lines between each area controller, all use rigid wire harnesses. The rigid wire harnesses can provide multiple wire harness interfaces, and the area controllers can directly draw power from the rigid wire harnesses without the need for branching equipment, which can save costs and facilitate heat dissipation.

[0068] The electrical connections between the main power supply unit 10 and each area controller, as well as the electrical connections between each area controller, all use rigid wire harnesses. The rigid wire harness design has multiple wire harness interfaces, allowing the area controllers to draw power directly from the rigid wire harnesses without relying on additional branching equipment. This not only significantly saves costs but also improves the simplicity and reliability of the system.

[0069] Furthermore, compared to traditional flexible cables, rigid wire harnesses possess greater mechanical strength, effectively resisting external vibrations and friction. They also exhibit high structural stability, maintaining stable power transmission even in complex and high-load environments. Moreover, the wiring arrangement of rigid wire harnesses is more compact, making more efficient use of the limited space within the vehicle, thereby avoiding redundant cable tangling and power transmission losses.

[0070] In some embodiments, the rigid wire harness is a copper busbar or an aluminum busbar.

[0071] Copper busbars have high electrical conductivity, enabling more efficient power transmission with lower voltage loss. In addition, their flexibility and good electrical connection performance allow them to adapt to complex vehicle wiring environments while ensuring the stability and reliability of power supply.

[0072] Aluminum busbars offer a lightweight advantage. Aluminum has a lower density, so under the same conductivity conditions, aluminum busbars are significantly lighter than copper busbars. Aluminum busbars are suitable for applications requiring reduced overall vehicle weight. While aluminum's conductivity is slightly lower than copper's, with proper design and material selection, aluminum busbars can still meet the vehicle's electrical needs while providing sufficient current carrying capacity. They also possess strong corrosion resistance, making them suitable for long-term use in variable automotive environments.

[0073] Copper and aluminum busbars have good heat dissipation performance, which can effectively disperse the heat generated when current passes through them, avoid the impact of overheating on the power system, and improve the reliability of the entire power supply system.

[0074] Figure 7A structural block diagram of a power supply system provided in an embodiment of this application is shown. (Refer to...) Figure 7 In some embodiments, the power supply system further includes a first branch unit 51 and a second branch unit 52. The first end of the first branch unit 51 is electrically connected to the main power supply unit 10, and the second end of the first branch unit 51 is electrically connected to the first area controller 21 and the second area controller 22, respectively. The first end of the second branch unit 52 is electrically connected to the first area controller 21, and the second end of the second branch unit 52 is electrically connected to each of the third area controllers 23, respectively.

[0075] The first branch line unit 51 is electrically connected to the main power supply unit 10, forming a power transmission channel between the main power supply unit 10 and each area controller. This design ensures that the power transmission from the main power supply unit 10 to multiple area controllers can proceed smoothly, while avoiding voltage fluctuations and power losses that may occur during power transmission.

[0076] The second branch unit 52 enables the first area controller 21 to distribute electrical energy to each of the third area controllers 23.

[0077] The distribution unit design is flexible and can be expanded or modified as needed to accommodate different numbers of area controllers. Through the distribution unit, the system not only improves power distribution efficiency but also reduces the risk of failures due to line redundancy or overload. Furthermore, the arrangement of the distribution units ensures the modularity and maintainability of the system, making future maintenance or expansion easier.

[0078] In some embodiments, the power supply system further includes a second independent power supply unit 42. The second independent power supply unit 42 is independent of the main power supply unit 10 and the first independent power supply unit 41, and the second independent power supply unit 42 is electrically connected to any of the multiple area controllers except the first area controller 21.

[0079] The second independent power supply unit 42 operates independently of the main power supply unit 10 and the first independent power supply unit 41, and is mainly used to provide independent power support for any area controller other than the first area controller 21.

[0080] The location of the area controller electrically connected to the second independent power supply unit 42 can be selected according to the actual vehicle model and user needs, and is not limited here.

[0081] As an example, the first area controller 21 is the left-side area controller 31. The first independent power supply unit 41 is electrically connected to the left-side area controller 31, and the second independent power supply unit 42 is electrically connected to the front area controller 33. The front area controller 33 supplies power to the loads in the front compartment area, which may include the engine system and electronic control system. The second independent power supply unit 42 is electrically connected to the front area controller 33 and can serve as a backup power source to ensure the power supply security of the front area controller 33.

[0082] It should be noted that the second independent power supply unit 42 is only used to provide power to a single area controller, and based on considerations such as cost and size, the power supply capacity of the second independent power supply unit 42 may be lower than that of the main power supply unit 10.

[0083] The structure of the second independent power supply unit 42 can be selected according to the actual application scenario, and is not limited here. For example, the second independent power supply unit 42 can be a battery.

[0084] In some embodiments, the first area controller 21 is communicatively connected to the unlocking load on the left side of the vehicle, and the plurality of area controllers also include a second area controller 22 which is communicatively connected to the unlocking load on the right side of the vehicle, and the second independent power supply unit 42 is electrically connected to the second area controller 22.

[0085] The first area controller 21 is the left-side area controller 31, and the second area controller 22 is the right-side area controller 32. The left-side area controller 31 is typically located at the front left of the vehicle, and the right-side area controller 32 is typically located at the front right of the vehicle. Loads are distributed according to proximity; loads unlocked on the left side of the vehicle are electrically connected to the left-side area controller 31, and loads unlocked on the right side of the vehicle are electrically connected to the right-side area controller 32.

[0086] In this embodiment, an independent power supply unit is provided for the left area controller 31 and the right area controller 32 respectively. When the vehicle is involved in a collision or a single point of failure occurs at any location of the vehicle, it can be ensured that at least one of the left area controller 31 and the right area controller 32 can work normally, that is, at least one of the left door and the right door can be unlocked, which facilitates rescue and improves reliability.

[0087] In some embodiments, the power supply system further includes multiple isolating switches K. The isolating switches K are located at the power supply ports of each area controller.

[0088] The isolating switch K can be switched between on and off states. An isolating switch K is installed at the power supply port of each area controller. Under normal conditions, the isolating switch K is in the on state, and the power distribution unit corresponding to each area controller provides power to its corresponding area controller. In the event of a fault in a certain area, the isolating switch K can effectively cut off the power supply to that area, preventing the fault from spreading to other areas, while still maintaining the normal driving function of the vehicle, thus improving reliability.

[0089] It should be noted that the specific type of disconnector K can be selected according to the actual application scenario, and is not limited here. For example, disconnector K can be a MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) or an IGBT (Insulated-Gate Bipolar Transistor), etc.

[0090] In some embodiments, the power supply system further includes an auxiliary power supply unit 60. The auxiliary power supply unit 60 is electrically connected to at least one area controller.

[0091] The auxiliary power supply unit 60 is mainly used to provide power to at least one area controller in the event of a failure of the main power supply unit 10, so as to avoid the paralysis of the entire vehicle system due to the failure of the main power supply unit 10 and further improve the reliability of the power supply system.

[0092] The structure of the auxiliary power supply unit 60 can be selected according to the actual application scenario, and is not limited here. For example, the main power supply unit 10 may include a switching power supply, which is used to convert the high-voltage electrical energy of the vehicle battery pack into a stable low-voltage DC power supply to the area controller.

[0093] The auxiliary power supply unit 60 can be electrically connected to the area controllers, and the number of area controllers electrically connected can be selected according to the actual application scenario. There is no limit here.

[0094] Figure 8 A schematic diagram of the electrical connections of the power supply system provided in an embodiment of this application in a vehicle is shown. (Refer to...) Figure 8 The auxiliary power supply unit 60 is electrically connected to the left area controller 31 and the front-end area controller respectively, and the main power supply unit 10 is electrically connected to the right area controller 32 and the rear-end area controller respectively. The right area controller 32 is electrically connected to the left area controller 31.

[0095] Secondly, this application provides a vehicle including the aforementioned power supply system.

[0096] The specific structure and working principle of the power supply system can be referred to the aforementioned embodiments, and will not be repeated here.

[0097] According to the vehicle of this application, by setting up a first area controller 21 that is independently powered by the main power supply unit 10 and is specifically connected to the loads related to safety and vehicle unlocking, when the main power supply unit 10 fails, since the first independent power supply unit 41 is an independent power source, the power supply to the first area controller 21 and its electrically connected loads related to safety and vehicle unlocking will not be interrupted, thereby ensuring the continuous operation of vehicle safety and vehicle unlocking functions under extreme conditions and improving the reliability of the whole vehicle.

[0098] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A power supply system, characterized in that, Applied to a vehicle, the vehicle including multiple area controllers, the power supply system includes: The main power supply unit is electrically connected to at least one of the area controllers; The first independent power supply unit is electrically connected to the first area controller, which is communicatively connected to the safety control load and the vehicle unlocking load.

2. The power supply system according to claim 1, characterized in that, The plurality of area controllers includes a second area controller and a third area controller. The main power supply unit is electrically connected to the first area controller and the second area controller, respectively, and the third area controller is electrically connected to the first area controller.

3. The power supply system according to claim 2, characterized in that, The number of the third area controllers is multiple.

4. The power supply system according to claim 3, characterized in that, The electrical connection lines between the main power supply unit and the first area controller, the electrical connection lines between the main power supply unit and the second area controller, and the electrical connection lines between the third area controller and the first area controller are all rigid wire harnesses.

5. The power supply system according to claim 4, characterized in that, The rigid wire harness is made of copper or aluminum.

6. The power supply system according to claim 3, characterized in that, The power supply system also includes: The first branch unit has a first end electrically connected to the main power supply unit, and a second end electrically connected to the first area controller and the second area controller, respectively. The second branch unit has its first end electrically connected to the first area controller, and its second end electrically connected to each of the third area controllers.

7. The power supply system according to any one of claims 1-6, characterized in that, The power supply system also includes: The second independent power supply unit is independent of the main power supply unit and the first independent power supply unit, and the second independent power supply unit is electrically connected to any of the plurality of area controllers except the first area controller.

8. The power supply system according to claim 7, characterized in that, The first area controller is communicatively connected to the unlocking load on the left side of the vehicle. The plurality of area controllers also include a second area controller that is communicatively connected to the unlocking load on the right side of the vehicle. The second independent power supply unit is electrically connected to the second area controller.

9. The power supply system according to any one of claims 1-6, characterized in that, The power supply system also includes: Multiple disconnect switches are provided, and the disconnect switches are located at the power supply ports of each of the area controllers.

10. The power supply system according to any one of claims 1-6, characterized in that, The power supply system also includes: An auxiliary power supply unit is electrically connected to at least one of the area controllers.

11. A vehicle, characterized in that, Includes the power supply system according to any one of claims 1-10.

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