Distributed isolation function electronic and electrical architecture of electric vehicle

Abstract

The embodiment of the utility model provides an electric vehicle distributed isolation function electronic and electrical framework which comprises a basic power distribution unit and a power distribution backup unit, a voltage converter in the basic power distribution unit is connected with a high-voltage battery pack so as to convert high-voltage electricity of the high-voltage battery pack into low-voltage electricity, and a first fuse box is connected with the voltage converter; a functional module in the power distribution backup unit is connected with a voltage converter through a first fuse box and is connected with a first storage battery through a second fuse box; the function module is connected with the network and judges whether to be disconnected with the basic power distribution unit according to signals output by the network. According to the electronic and electrical framework, the isolation function can be moved to each functional module, and the problem that when a centralized isolator breaks down, all safety modules cannot work normally, and the safety of the whole vehicle is affected is solved. And the isolation function is distributed at each functional module, so that the size of the isolation module is reduced, a water cooling system does not need to be configured for the isolation module, and the problem of space occupation is solved.

Description

Technical Field

[0001] The embodiments of this specification relate to the field of automotive electronic and electrical technologies, and in particular to a distributed isolation function electronic and electrical architecture for electric vehicles. Background Art

[0002] Currently, the electrical and electronic architectures of electric vehicles at the ADAS (Advanced Driving Assistance System) L2.5 / L3.0 levels often adopt a dual-power distribution electrical architecture. Specifically, for the L2.5 level, dual-power distribution is required. To prevent the normal operation of modules with high safety regulations from being affected when the DC / DC fails, a circuit breaker is often used for DC / DC electrical isolation. Once the DC / DC fails, the vehicle grid voltage will change abnormally. At this time, the circuit breaker quickly cuts off the DC / DC power distribution to ensure that modules with a high safety level can work normally for a period of time under the power supply of the battery until the vehicle owner safely transfers the vehicle to a relevant place. The safety regulations required for the L3.0 level are even higher. In addition to dual-power distribution, functional backup is also required for modules with high safety regulations. Once the main function module has a problem, the backup function module can also work normally to ensure the safety of the vehicle owner. Therefore, in vehicles at the L3.0 level, a method of functional backup is often adopted for modules with high safety regulations, and isolators are respectively used for the original module and the backup module of the same function to ensure that their connection to the vehicle grid is cut off in the event of a DC / DC problem, and a separate battery is provided as a safety power supply for the backup function module. Therefore, electric vehicles at the L2.5 level need to be equipped with one battery and one isolator, while electric vehicles at the L3.0 level need to be equipped with two batteries and two isolators to supply power and isolate for the main function module and the backup module respectively.

[0003] However, the current electronic and electrical architecture used in electric vehicles is a centralized isolation architecture. If the single isolator in the L2.5 level or the dual isolators in the L3.0 level fail, it often leads to the failure of all safety modules, thus causing vehicle safety problems.

[0004] In view of this, the embodiments of this specification aim to provide a distributed isolation function electronic and electrical architecture for electric vehicles. Utility Model Content

[0005] Aiming at the above problems of the prior art, the purpose of the embodiments of this specification is to provide a distributed isolation function electronic and electrical architecture for electric vehicles to solve the problem in the existing centralized isolation architecture that when the isolator fails, all safety modules will not be able to work normally, affecting vehicle safety.

[0006] To solve the above technical problems, the specific technical solutions of the embodiments of this specification are as follows:

[0007] The embodiments of this specification provide a distributed isolation function electronic and electrical architecture for electric vehicles, including:

[0008] A basic power distribution unit, including a high-voltage battery pack, a voltage converter, and a first fuse box;

[0009] A power distribution backup unit, including at least one functional module, a second fuse box, and a first storage battery;

[0010] The voltage converter is connected to the high-voltage battery pack, and the voltage converter is used to convert the high-voltage electricity of the high-voltage battery pack into low-voltage electricity. The first fuse box is connected to the voltage converter;

[0011] The at least one functional module is connected to the voltage converter through the first fuse box, and the at least one functional module is connected to the first storage battery through the second fuse box; the at least one functional module is connected to a network and determines whether to disconnect from the basic power distribution unit according to the signal output by the network.

[0012] Specifically, it further includes:

[0013] A function backup unit, including at least one function backup module, a third fuse box, and a second storage battery;

[0014] The at least one function backup module is connected to the voltage converter through the first fuse box, and the at least one function backup module is connected to the second storage battery through the third fuse box;

[0015] The at least one function backup module is used to perform function backup for the at least one functional module; the at least one function backup module is connected to a network and determines whether to disconnect from the basic power distribution unit according to the signal output by the network.

[0016] Furthermore, the basic power distribution unit further includes at least one safety domain controller and / or at least one non-safety domain controller;

[0017] The at least one safety domain controller and / or the at least one non-safety domain controller are connected to the voltage converter through the first fuse box; the at least one safety domain controller is connected to the first storage battery through the second fuse box.

[0018] Specifically, the safety domain controller includes a first control element and an isolation function electronic switch;

[0019] The first control element is connected to the network and the isolation function electronic switch; the isolation function electronic switch is connected to the voltage converter via the first fuse box, and the isolation function electronic switch is connected to the first battery via the second fuse box;

[0020] The first control element is configured to control the opening or closing of the isolation function electronic switch according to the signal fed back by the network.

[0021] Preferably, the at least one function backup module is further configured to perform function backup for the security domain controller.

[0022] Specifically, the function module includes a second control element and a first electronic switch;

[0023] The second control element is connected to the network and the first electronic switch; one end of the first electronic switch is connected to the voltage converter via the first fuse box, and the other end of the first electronic switch is connected to the first battery via the second fuse box;

[0024] The second control element is configured to control the opening or closing of the first electronic switch according to the signal fed back by the network.

[0025] Further, the function backup module includes a third control element and a second electronic switch;

[0026] The third control element is connected to the network and the second electronic switch; one end of the second electronic switch is connected to the voltage converter via the first fuse box, and the other end of the second electronic switch is connected to the second battery via the third fuse box;

[0027] The third control element is configured to control the opening or closing of the second electronic switch according to the signal fed back by the network.

[0028] Specifically, the high-voltage battery pack is further connected to a high-voltage electrical appliance.

[0029] Further, fuses corresponding to the at least one function module are provided in the first fuse box, and the at least one function module is connected to the voltage converter via the fuses in the first fuse box corresponding to it one by one;

[0030] Fuses corresponding to the at least one function module are provided in the second fuse box, and the at least one function module is connected to the first battery via the fuses in the second fuse box corresponding to it one by one.

[0031] Furthermore, the first fuse box is provided with fuses corresponding to the at least one functional backup module on a one-to-one basis, and the at least one functional backup module is connected to the voltage converter via the fuses in the first fuse box corresponding to the at least one functional backup module;

[0032] The third fuse box is provided with fuses corresponding one-to-one to the at least one functional backup module, and the at least one functional backup module is connected to the second battery via the fuses in the third fuse box corresponding one-to-one to the at least one functional backup module.

[0033] By adopting the above technical solution, the embodiments of this specification provide a distributed isolation function electronic and electrical architecture for electric vehicles. This architecture can distribute the isolation function downward to various functional modules, forming a distributed isolation function electronic and electrical architecture. Even if the isolation function of a functional module fails, it will not adversely affect the operation of other functional modules. This overcomes the problem of centralized isolation architecture in the prior art, where a failure of the centralized isolator will cause all safety modules to malfunction, affecting the safety of the entire vehicle. Furthermore, by distributing the isolation function to various functional modules, the size of the isolation module is reduced, and there is no need to configure a water cooling system for it, solving the problem of space occupation.

[0034] In order to make the above and other purposes, features and advantages of the embodiments of this specification more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0036] Figure 1 A schematic diagram of the structure of an electric vehicle distributed isolation function electronic and electrical architecture provided by an embodiment of this specification is shown;

[0037] Figure 2 A schematic diagram of the structure of another distributed isolation function electronic and electrical architecture for electric vehicles provided in an embodiment of this specification is shown;

[0038] Figure 3 A schematic diagram of the structure of a security domain controller in an embodiment of this specification is shown;

[0039] Figure 4 It shows a structural diagram of the functional modules in the embodiment of this specification.

[0040] Description of the drawing reference numerals:

[0041] 10. Basic power distribution unit;

[0042] 11. High-voltage battery pack;

[0043] 12. Voltage converter;

[0044] 13. First fuse box;

[0045] 14. Non-security domain controller;

[0046] 15. Security domain controller;

[0047] 151. First control element;

[0048] 152. Isolation function electronic switch;

[0049] 16. High-voltage electrical appliance;

[0050] 20. Power distribution backup unit;

[0051] 21. Function module;

[0052] 211. Second control element;

[0053] 212. First electronic switch;

[0054] 22. Second fuse box;

[0055] 23. First storage battery;

[0056] 30. Function backup unit;

[0057] 31. Function backup module;

[0058] 32. Third fuse box;

[0059] 33. Second storage battery. Detailed implementation manners

[0060] Next, the technical solutions in the embodiments of this specification will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this specification. Obviously, the described embodiments are only a part of the embodiments of this specification, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this specification without creative efforts shall fall within the protection scope of this specification.

[0061] It should be noted that the terms "first", "second", etc. in this specification, the claims and the above-mentioned drawings are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of this specification described here can be implemented in an order other than those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, device, product or equipment comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or equipment.

[0062] To solve the above problems, the embodiments of this specification provide an electric vehicle distributed isolation function electronic and electrical architecture, which can solve the problem in the prior art that when a fault occurs in the isolator in the centralized isolation architecture, all safety modules will not be able to work properly, affecting the safety of the whole vehicle.

[0063] Figure 1 It is a schematic structural diagram of an electric vehicle distributed isolation function electronic and electrical architecture provided by the embodiments of this specification. Specifically, as Figure 1 shown, the electric vehicle distributed isolation function electronic and electrical architecture provided by the embodiments of this specification may include:

[0064] The basic power distribution unit 10 includes a high-voltage battery pack 11, a voltage converter 12, and a first fuse box 13. The voltage converter 12 is connected to the high-voltage battery pack 11, and the voltage converter 12 is used to convert the high-voltage electricity of the high-voltage battery pack 11 into low-voltage electricity; the first fuse box 13 is connected to the voltage converter 12 and is used to protect the circuit; the basic power distribution unit 10 is used to supply power to the whole vehicle. In the embodiments of this specification, the voltage converter is a DC / DC converter, which can convert the high-voltage electricity provided by the high-voltage battery pack 11 into low-voltage electricity and then supply it to each relevant module.

[0065] The power distribution backup unit 20 includes at least one functional module 21, a second fuse box 22, and a first storage battery 23;

[0066] The at least one functional module 21 is connected to the voltage converter 12 through the first fuse box 13, and the at least one functional module 21 is connected to the first storage battery 23 through the second fuse box 22; the at least one functional module 21 is connected to the network and determines whether to disconnect from the basic power distribution unit 10 according to the signal output by the network.

[0067] In the embodiments of this specification, the at least one functional module 21 is the functional module related to safety in an electric vehicle specified at the L2.5 level. For example, a vehicle body stability functional module, an active braking functional module, etc. It adopts a dual power distribution setting of DC / DC and a storage battery. Once a fault occurs in the DC / DC or the output voltage is abnormal, the at least one functional module 21 can obtain an alarm signal of abnormal DC / DC operation from the relevant network, and then determine whether to disconnect the connection with the basic power distribution unit.

[0068] It should be noted that, by way of example, as Figure 1 shown, the power distribution backup unit 20 is provided with 3 functional modules 21. The number of the functional modules 21 can be set according to specific application needs. In the embodiments of this specification, the number of the functional modules 21 is not specifically limited. The functional module can be a single-functional module, that is, each functional module is responsible for a single function separately (for example Figure 4 as shown, the functional module 21 is responsible for the M function); each functional module can be connected to different networks or the same network according to actual application needs and parameters such as network load rate and capacity. Thus, each functional module can determine whether to disconnect the connection with the basic power distribution unit 10 according to the signals fed back by the networks it is connected to, and after disconnecting the connection with the basic power distribution unit 10, continue to work under the power supply of the first storage battery 23 to ensure the safety of the electric vehicle, thus meeting the requirements of relevant regulations.

[0069] The distributed isolation function electronic and electrical architecture of the electric vehicle provided by the embodiments of this specification can distribute the isolation function down to each functional module, forming a distributed isolation function electronic and electrical architecture. Even if the isolation function of a certain functional module fails, it will not have an adverse impact on the operation of other functional modules. Therefore, it can overcome the problem in the prior art that when a centralized isolator fails in a centralized isolation architecture, all safety modules will be unable to work properly, affecting the safety of the whole vehicle.

[0070] In addition, since the isolator used in the centralized isolation architecture is large in volume and there are multiple high-power switching tubes inside, there is a problem of heat concentration, and a water cooling system is required for cooling, resulting in a large space occupation problem for the isolator and its water cooling system. The distributed isolation function electronic and electrical architecture of the electric vehicle provided by the embodiments of this specification distributes the isolation function at each functional module, reducing the volume of the isolation module and also eliminating the need to configure a water cooling system for it, thus solving the problem of space occupation.

[0071] Furthermore, as Figure 2 shown, the distributed isolation function electronic and electrical architecture of the electric vehicle provided by the embodiments of this specification further includes:

[0072] The function backup unit 30 includes at least one function backup module 31, a third fuse box 32, and a second storage battery 33;

[0073] The at least one function backup module 31 is connected to the voltage converter 12 through the first fuse box 13, and the at least one function backup module 31 is connected to the second storage battery 33 through the third fuse box 32;

[0074] The at least one function backup module 31 is used to perform function backup for the at least one function module 21; the at least one function backup module 31 is connected to a network and determines whether it is disconnected from the basic power distribution unit 10 according to the signal output by the network.

[0075] That is, the at least one function backup module 31 also adopts a dual power distribution setting of DC / DC and a storage battery. Once the DC / DC fails and the output voltage is abnormal, the at least one function backup module 31 can obtain an alarm signal of abnormal DC / DC operation from the relevant network connected thereto, and then determine whether to disconnect the connection with the basic power distribution unit. And after disconnecting the connection with the basic power distribution unit 10, it continues to work under the power supply of the second storage battery 33 to ensure the safety of the electric vehicle.

[0076] It should be noted that, by way of example, as Figure 1 shown, the function backup unit 30 is provided with 3 function backup modules 31. The number of the function backup modules 31 can be set according to specific application requirements, and the number of the function backup modules 31 is not specifically limited in the embodiments of this specification.

[0077] In the embodiments of this specification, function backup is performed on at least one function module through a function backup module, so that when the operation of a certain function module is abnormal and the function fails, its corresponding function backup module can be substituted and compensated, meeting the requirements of relevant regulations for electric vehicles of ADAS L3 and above levels.

[0078] Moreover, since in an electric vehicle distributed isolation function electronic and electrical architecture provided by the embodiments of this specification, each function backup module in the function backup unit also adopts a distributed isolation architecture, even if the isolation function of a certain function backup module fails, it will not have an adverse impact on the operation of other function backup modules.

[0079] It should be noted that in the embodiments of this specification, when the function backup module 31 performs function backup for at least one function module 21, it further performs backup for the function modules that meet the preset security level according to the preset security algorithm and relevant electric vehicle safety regulations, that is, performs security backup for the function modules with a higher security level; in addition, when performing function backup, some functions that were originally scattered in multiple function modules can be integrated into one function backup module according to actual needs. Therefore, in the embodiments of this specification, the number of the function backup modules 31 does not have to be limited to being equal to the number of the function modules 21. Thus, while meeting the function backup requirements, it is beneficial to reduce the structural complexity and reduce the function backup cost.

[0080] Furthermore, as Figure 1 shown, the basic power distribution unit 10 further includes at least one safety domain controller 15 and / or at least one non-safety domain controller 14;

[0081] The at least one safety domain controller 15 and / or the at least one non-safety domain controller 14 are connected to the voltage converter 12 through the first fuse box 13; the at least one safety domain controller 15 is connected to the first battery 23 through the second fuse box 22.

[0082] Integrating the controllers of multiple functions with related or similar functions together, that is, obtaining a domain controller (exemplarily, as Figure 2 shown, the control of function M1 and function M2 is centralized in the safety domain controller 15), which can centrally manage multiple function modules, achieving higher system integration and lower development costs. In the embodiments of this specification, the domain controller can have a safety-type domain controller and a non-safety-type domain controller, so as to meet the integrated control requirements of various function modules.

[0083] In the embodiments of this specification, for the safety domain controller among them, DC / DC and battery dual power distribution are also performed to ensure that it can still continue to work under the power supply of the second battery 33 when the DC / DC fails and the output voltage is abnormal, guaranteeing the safety of the electric vehicle.

[0084] As Figure 3 shown, the safety domain controller 15 includes a first control element 151 and an isolation function electronic switch 152;

[0085] The first control element 151 is connected to the network and the isolation function electronic switch 152; the isolation function electronic switch 152 is connected to the voltage converter 12 through the first fuse box 13, and the isolation function electronic switch 152 is connected to the first battery 23 through the second fuse box 22;

[0086] The first control element 151 is used to control the opening or closing of the isolation function electronic switch 152 according to the signal fed back by the network.

[0087] When the DC / DC is in a normal operating state and the output voltage is normal, the isolation function electronic switch 152 remains closed under the control of the first control element 151, so that the safety domain controller 15 is connected to the basic power distribution unit 10. At this time, the safety domain controller 15 is connected to both the voltage converter 12 of the basic power distribution unit 10 and the first battery 23. However, since the voltage output by the voltage converter 12 is higher than the voltage output by the first battery 23, the safety domain controller will operate at the voltage output by the voltage converter at this time.

[0088] When the signal fed back by the network indicates that the DC / DC has failed and the output voltage is abnormal, the isolation function electronic switch 152 is opened under the control of the first control element 151, thereby disconnecting the connection with the basic power distribution unit 10. The safety domain controller will continue to operate under the power supply of the first battery 23.

[0089] In some preferred embodiments, the at least one function backup module 31 is further used to perform function backup for the safety domain controller 15.

[0090] Specifically, the function backup module 31 may back up the part of the functions responsible by the safety domain controller that meets the preset safety level requirements, thereby playing a role in reducing the structural complexity and reducing the function backup cost.

[0091] Further, as Figure 4 shown, the function module 21 includes a second control element 211 and a first electronic switch 212;

[0092] The second control element 211 is connected to the network and the first electronic switch 212; one end of the first electronic switch 212 is connected to the voltage converter 12 through the first fuse box 13, and the other end of the first electronic switch 212 is connected to the first battery 23 through the second fuse box 22;

[0093] The second control element 211 is used to control the opening or closing of the first electronic switch 212 according to the signal fed back by the network.

[0094] When the DC / DC is in a normal operating state and the output voltage is normal, the first electronic switch 212 remains closed under the control of the second control element 211, so that the function module 21 is connected to the basic power distribution unit 10; at the same time, the function module 21 is also connected to the first battery 23. However, since the voltage output by the voltage converter 12 is higher than the voltage output by the first battery 23, the function module 21 will operate at the voltage output by the voltage converter 12 at this time.

[0095] When the signal fed back by the network indicates that the DC / DC fails and the output voltage is abnormal, the first electronic switch 212 is turned on under the control of the second control element 211, thereby disconnecting the connection with the basic power distribution unit 10. The functional module 21 will continue to operate powered by the first battery 23, thus ensuring vehicle safety.

[0096] Further, in the embodiments of the present specification, the function backup module 31 includes a third control element and a second electronic switch;

[0097] The third control element is connected to the network and the second electronic switch; one end of the second electronic switch is connected to the voltage converter 12 via the first fuse box 13, and the other end of the second electronic switch is connected to the second battery 33 via the third fuse box 32;

[0098] The third control element is used to control the opening or closing of the second electronic switch according to the signal fed back by the network. The structure of the function backup module is the same as or similar to the structure of the functional module, and the connection relationship between the third control element and the second electronic switch can be referred to Figure 3 the structural schematic diagram of the functional module shown.

[0099] When the DC / DC is in a normal working state and the output voltage is normal, the second electronic switch remains closed under the control of the third control element, so that the function backup module 31 is connected to the basic power distribution unit 10; at the same time, the function backup module 31 is also connected to the second battery 33. However, since the voltage output by the voltage converter 12 is higher than the voltage output by the second battery 33, at this time, the function backup module 31 will operate under the voltage output by the voltage converter 12.

[0100] When the signal fed back by the network indicates that the DC / DC fails and the output voltage is abnormal, the second electronic switch is turned on under the control of the third control element, thereby disconnecting the connection with the basic power distribution unit 10. The function backup module 31 will continue to operate powered by the second battery 33, greatly ensuring vehicle safety.

[0101] As Figure 1 shown, in the embodiments of the present specification, the high-voltage battery pack 11 is also connected to a high-voltage electrical appliance 16 to meet the power consumption requirements of the high-voltage electrical appliance 16.

[0102] Further, in the embodiments of the present specification, fuses corresponding one-to-one to the at least one functional module 21 are provided in the first fuse box 13, and the at least one functional module 21 is connected to the voltage converter 12 via the fuses in the first fuse box 13 corresponding one-to-one to it;

[0103] A fuse corresponding to each of the at least one functional module 21 is provided in the second fuse box 22, and the at least one functional module 21 is connected to the first storage battery 23 through the fuse in the second fuse box 22 corresponding to it one by one.

[0104] Similarly, a fuse corresponding to each of the at least one functional backup module 31 is provided in the first fuse box 13, and the at least one functional backup module 31 is connected to the voltage converter 12 through the fuse in the first fuse box 13 corresponding to it one by one;

[0105] A fuse corresponding to each of the at least one functional backup module 31 is provided in the third fuse box 32, and the at least one functional backup module 31 is connected to the second storage battery 33 through the fuse in the third fuse box 32 corresponding to it one by one.

[0106] In the embodiments of the present specification, the safety of the power distribution line is ensured by the fuses in the first fuse box 13, the second fuse box 22 and the third fuse box 32.

[0107] In summary, the distributed isolation function electronic and electrical architecture of the electric vehicle provided by the embodiments of the present specification can replace the centralized isolator in the prior art with a distributed downward shift isolation function, reducing the risk degree of centralized control; and by setting the fuses in the first fuse box, the second fuse box and the third fuse box, the safety of the relevant lines is protected.

[0108] It should be understood that in various embodiments of the present specification, the magnitude of the serial numbers of the above processes does not mean the order of execution is prior or posterior, and the order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present specification.

[0109] It should also be understood that in the embodiments of the present specification, the term "and / or" is only a description of the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in the present specification generally represents an "or" relationship between the front and rear associated objects.

[0110] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed in this specification can be implemented by electronic hardware, computer software, or a combination of the two. To clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described according to functions in the above description. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this specification.

[0111] Those skilled in the art can clearly understand that for the convenience and conciseness of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated here.

[0112] In several embodiments provided in this specification, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed couplings or direct couplings or communication connections to each other can be indirect couplings or communication connections through some interfaces, devices, or units, and can also be in the form of electrical, mechanical, or other connections.

[0113] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiments of this specification.

[0114] In addition, the functional units in each embodiment of this specification can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above integrated units can be implemented in the form of hardware or in the form of software functional units.

[0115] When the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this specification, in essence, or the part that contributes to the prior art, or all or part of this technical solution can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this specification. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks, or optical discs.

[0116] Specific embodiments are used in this specification to elaborate on the principles and implementation manners of this specification. The description of the above embodiments is only used to help understand the method and its core idea of this specification; at the same time, for those of ordinary skill in the art, according to the idea of this specification, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to this specification.

Claims

1. A distributed isolation function electronic and electrical architecture for an electric vehicle, characterized in that, Comprising: A basic power distribution unit (10), including a high-voltage battery pack (11), a voltage converter (12), and a first fuse box (13); A power distribution backup unit (20), including at least one functional module (21), a second fuse box (22), and a first storage battery (23); The voltage converter (12) is connected to the high-voltage battery pack (11), and the voltage converter (12) is used to convert the high-voltage electricity of the high-voltage battery pack (11) into low-voltage electricity, and the first fuse box (13) is connected to the voltage converter (12); The at least one functional module (21) is connected to the voltage converter (12) through the first fuse box (13), and the at least one functional module (21) is connected to the first storage battery (23) through the second fuse box (22); the at least one functional module (21) is connected to a network and determines whether to disconnect from the basic power distribution unit (10) according to the signal output by the network.

2. The distributed isolation function electronic and electrical architecture of an electric vehicle according to claim 1, characterized in that, Further comprising: A functional backup unit (30), including at least one functional backup module (31), a third fuse box (32), and a second storage battery (33); The at least one functional backup module (31) is connected to the voltage converter (12) through the first fuse box (13), and the at least one functional backup module (31) is connected to the second storage battery (33) through the third fuse box (32); The at least one functional backup module (31) is used to perform functional backup on the at least one functional module (21); the at least one functional backup module (31) is connected to a network and determines whether to disconnect from the basic power distribution unit (10) according to the signal output by the network.

3. The distributed isolation function electronic and electrical architecture of an electric vehicle according to claim 2, wherein, The basic power distribution unit (10) further includes at least one non-security domain controller (14) and / or at least one security domain controller (15); The at least one non-security domain controller (14) and / or the at least one security domain controller (15) is connected to the voltage converter (12) through the first fuse box (13); the at least one security domain controller (15) is connected to the first storage battery (23) through the second fuse box (22).

4. The distributed isolation function electronic and electrical architecture for an electric vehicle according to claim 3, characterized in that The security domain controller (15) includes a first control element (151) and an isolation function electronic switch (152); The first control element (151) is connected to the network and the isolation function electronic switch (152); the isolation function electronic switch (152) is connected to the voltage converter (12) through the first fuse box (13), and the isolation function electronic switch (152) is connected to the first storage battery (23) through the second fuse box (22); The first control element (151) is used to control the opening or closing of the isolation function electronic switch (152) according to the signal fed back by the network.

5. The distributed isolation function electronic and electrical architecture for an electric vehicle according to claim 3, wherein The at least one functional backup module (31) is further used to perform functional backup on the security domain controller (15).

6. The distributed isolation function electronic and electrical architecture of an electric vehicle according to claim 1, characterized in that The functional module (21) includes a second control element (211) and a first electronic switch (212); The second control element (211) is connected to the network and the first electronic switch (212); one end of the first electronic switch (212) is connected to the voltage converter (12) via the first fuse box (13), and the other end of the first electronic switch (212) is connected to the first battery (23) via the second fuse box (22); The second control element (211) is configured to control the opening or closing of the first electronic switch (212) according to a signal fed back by the network.

7. The distributed isolation function electronic and electrical architecture for an electric vehicle according to claim 2, wherein The function backup module (31) includes a third control element and a second electronic switch; The third control element is connected to the network and the second electronic switch; one end of the second electronic switch is connected to the voltage converter (12) via the first fuse box (13), and the other end of the second electronic switch is connected to the second battery (33) via the third fuse box (32); The third control element is configured to control the opening or closing of the second electronic switch according to a signal fed back by the network.

8. The distributed isolation function electronic and electrical architecture for an electric vehicle according to claim 1, characterized in that, The high-voltage battery pack (11) is further connected to a high-voltage electrical appliance (16).

9. The electric vehicle distributed isolation function electronic and electrical architecture according to claim 1, wherein The first fuse box (13) is provided with fuses corresponding one-to-one to the at least one function module (21), and the at least one function module (21) is connected to the voltage converter (12) via the fuses in the first fuse box (13) corresponding one-to-one to it; The second fuse box (22) is provided with fuses corresponding one-to-one to the at least one function module (21), and the at least one function module (21) is connected to the first battery (23) via the fuses in the second fuse box (22) corresponding one-to-one to it.

10. The electric vehicle distributed isolation function electronic and electrical architecture according to claim 2, wherein The first fuse box (13) is provided with fuses corresponding one-to-one to the at least one function backup module (31), and the at least one function backup module (31) is connected to the voltage converter (12) via the fuses in the first fuse box (13) corresponding one-to-one to it; The third fuse box (32) is provided with fuses corresponding one-to-one to the at least one function backup module (31), and the at least one function backup module (31) is connected to the second battery (33) via the fuses in the third fuse box (32) corresponding one-to-one to it.

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