Power redundancy control system and vehicle
By adopting parallel connected battery modules and power module designs in the power redundant control system, redundant backup and autonomous driving functions are realized, solving the problems of long development cycles and high costs in the existing technology, and simplifying the design and verification process of power modules.
Patent Information
- Application Number
- CN202421906724.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-07
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-08-07
AI Technical Summary
The existing 800V power supply redundant control system has a long development cycle and high cost, and the backup power supply has a small power supply and cannot directly use the main power supply, resulting in an increase in the cost and cycle of the development verification of redundant power supply schemes.
The first battery module and the second battery module are respectively connected in parallel with the first power module and the second power module. The power module with the same structure is designed to achieve redundant backup, and the configuration requirements of the L3 and above level automatic driving function are realized through the first and second power modules, and there is no need to redevelop and verify during the vehicle power module boost.
It simplifies the design and development verification cycle, saves development verification costs, realizes the flexible application of the 800V system platform architecture and the use of 400V power modules, and reduces the complexity and cost of the development verification of the power modules.
Smart Images
Figure CN223124651U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of power control, and particularly relates to a power redundancy control system and a vehicle. Background Art
[0002] In the existing 800V power redundancy control system, on the one hand, it is usually necessary to re-develop and verify a power module that meets 800V voltage, directly connect to an 800V battery pack, or add a DC converter at the output end of the 800V battery pack to convert the battery pack voltage from 800V to 400V and then connect to the existing 400V power module. Therefore, the development of an 800V power module or the addition of a DC converter to the redundancy control system requires re-development and verification, increasing costs and cycle time.
[0003] On the other hand, in the existing power redundancy control system, there are a main power supply and a backup power supply. The load types powered by the main power supply include conventional loads and redundant loads, and the load types powered by the backup power supply are only redundant loads; therefore, the power of the backup power supply is small, such as 1kW, and it cannot directly use the main power supply, which increases the development and verification costs and cycle time; in addition, it is necessary to develop multiple backup power supplies with different powers to meet the redundant power supply schemes of various vehicle models or systems, which is not conducive to the change and expansion of the redundant power supply scheme. Summary of the Invention
[0004] The embodiments of the utility model provide a power redundancy control system and a vehicle to solve the problems of long system development cycle and high cost in the prior art.
[0005] Based on the above purpose, in the first aspect, a power redundancy control system is proposed. The power redundancy control system includes:
[0006] A first battery module, a second battery module, a first power module, and a second power module. Among them, the input end of the first battery module is connected to the positive pole of the high-voltage interface, the output end of the first battery module is connected to the input end of the second battery module, and the output end of the second battery module is connected to the negative pole of the high-voltage interface;
[0007] The primary high-voltage input end of the first power module is connected in parallel with the first battery module, the secondary high-voltage output end of the first power module is connected to the AC power interface, and the secondary low-voltage output end of the first power module is connected to the first DC power interface;
[0008] The primary high-voltage input end of the second power module is in parallel with the second battery module, the secondary high-voltage output end of the second power module is connected to the AC power interface, and the secondary high-voltage output end of the second power module is in parallel with the secondary high-voltage output end of the first power module. The secondary low-voltage output end of the second power supply is connected to the second DC power interface.
[0009] Optionally, the first power supply module includes:
[0010] A first DC converter and a first AC charging module, the DC input terminal of the first DC converter is the same as the DC input terminal of the first AC charging module, and the DC input terminal is used as the primary high-voltage input terminal of the first power supply module;
[0011] The DC output terminal of the first DC converter is used as the secondary low-voltage output terminal of the first power supply module; the AC output terminal of the first AC charging module is used as the secondary high-voltage output terminal of the first power supply module.
[0012] Optionally, the first DC converter includes:
[0013] A first DC-to-AC module, a first transformer, and a first AC-to-DC module. The input terminal of the first DC-to-AC module is the DC input terminal of the first DC converter, the output terminal of the first DC-to-AC module is connected to the input terminal of the first transformer, the first output terminal of the first transformer is connected to the input terminal of the first AC-to-DC module, and the output terminal of the first AC-to-DC module is the DC output terminal of the first DC converter.
[0014] Optionally, the first AC charging module includes:
[0015] A second AC-to-DC module and a second DC-to-AC module. The input terminal of the second AC-to-DC module is connected to the second output terminal of the first transformer, the output terminal of the second AC-to-DC module is connected to the input terminal of the second DC-to-AC module, and the output terminal of the second DC-to-AC module is the AC output terminal of the first AC charging module.
[0016] Optionally, the second power supply module includes:
[0017] A second DC converter and a second AC charging module, the DC input terminal of the second DC converter is the same as the DC input terminal of the second AC charging module, and the DC input terminal is used as the primary high-voltage input terminal of the second power supply module;
[0018] The DC output terminal of the second DC converter is used as the secondary low-voltage output terminal of the second power supply module; the AC output terminal of the second AC charging module is used as the secondary high-voltage output terminal of the second power supply module.
[0019] Optionally, the second DC converter includes:
[0020] A third DC-AC module, a second transformer, and a third AC-DC module. The input end of the third DC-AC module is the DC input end of the second DC converter. The output end of the third DC-AC module is connected to the input end of the second transformer. The first output end of the second transformer is connected to the input end of the third AC-DC module. The output end of the third AC-DC module is the DC output end of the second DC converter.
[0021] Optionally, the second AC charging module includes:
[0022] A fourth AC-DC module and a fourth DC-AC module. The input end of the fourth AC-DC module is connected to the second output end of the second transformer. The output end of the fourth AC-DC module is connected to the input end of the fourth DC-AC module. The output end of the fourth DC-AC module is the AC output end of the second AC charging module.
[0023] Optionally, the maximum power supply voltage of the first battery module is 400V, and the maximum power supply voltage of the second battery module is 400V.
[0024] Optionally, the DC voltage range of the secondary low-voltage output end of the first power module is 0-24V, and the DC voltage range of the secondary low-voltage output end of the second power module is 0-24V.
[0025] In a second aspect, a vehicle is provided, and the vehicle has the power redundancy control system described in the first aspect.
[0026] The above-mentioned power redundancy control system and vehicle, the system includes a first battery module, a second battery module, a first power module and a second power module. The input end of the first battery module is connected to the positive pole of the high-voltage interface. The output end of the first battery module is connected to the input end of the second battery module. The output end of the second battery module is connected to the negative pole of the high-voltage interface. The primary high-voltage input end of the first power module is connected in parallel with the first battery module. The secondary high-voltage output end of the first power module is connected to the AC power interface. The secondary low-voltage output end of the first power module is connected to the first DC power interface. The primary high-voltage input end of the second power module is in parallel with the second battery module. The secondary high-voltage output end of the second power module is connected to the AC power interface, and the secondary high-voltage output end of the second power module is in parallel with the secondary high-voltage output end of the first power module. The secondary low-voltage output end of the second power supply is connected to the second DC power interface. Through the first and second power modules, the functional configuration requirements of L3 and above level autonomous driving or other functions that require two isolated power supplies are realized. And the structures of the two redundant power modules are the same, which can realize mutual backup, simplify the design and development verification cycle. In addition, this system can be applied to both the 800V system platform architecture and the 400V power module can be continued to use. During the voltage boost process of the vehicle voltage platform, the power module does not need to be re-developed and verified. The solution is mature and reliable, saving the development verification cycle and cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0028] Figure 1 is a circuit schematic diagram of a power redundancy control system in an embodiment of the present invention;
[0029] Symbol Description:
[0030] 1. First battery module; 2. Second battery module; 3. First power module; 4. Second power module; 5. Positive pole of high-voltage interface; 6. Negative pole of high-voltage interface; 7. First DC power interface; 8. Second DC power interface; 9. AC power interface; 31. First DC-to-AC module; 32. First transformer; 33. First AC-to-DC module; 34. Second AC-to-DC module; 35. Second DC-to-AC module; 41. Third DC-to-AC module; 42. Second transformer; 43. Third AC-to-DC module; 44. Fourth AC-to-DC module; 45. Fourth DC-to-AC module. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.
[0032] It should be understood that the present utility model can be implemented in different forms and should not be construed as limited to the embodiments presented herein. On the contrary, providing these embodiments will make the disclosure thorough and complete, and will fully convey the scope of the present utility model to those skilled in the art. In the drawings, for clarity, the dimensions and relative dimensions of layers and regions may be exaggerated. The same reference numerals denote the same elements throughout the drawings.
[0033] It should be understood that when an element or layer is referred to as being "on", "adjacent to", "connected to" or "coupled to" another element or layer, it can be directly on, adjacent to, connected or coupled to the other element or layer, or there may be intervening elements or layers. In contrast, when an element is referred to as being "directly on", "directly adjacent to", "directly connected to" or "directly coupled to" another element or layer, there are no intervening elements or layers. It should be understood that although the terms first, second, third, etc. may be used to describe various elements, components, regions, layers and / or parts, these elements, components, regions, layers and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or part from another element, component, region, layer or part. Thus, the first element, component, region, layer or part discussed below may be denoted as the second element, component, region, layer or part without departing from the teachings of the present utility model.
[0034] Spatial relationship terms such as "under", "below", "lower", "beneath", "above", "upper", etc. may be used herein for convenience in describing the relationship of one element or feature shown in the drawings to other elements or features. It should be understood that, in addition to the orientation shown in the drawings, spatial relationship terms are intended to also include different orientations of the device in use and operation. For example, if the device in the drawing is flipped, then an element or feature described as "under" or "beneath" or "below" other elements or features will be oriented "above" the other elements or features. Thus, the exemplary terms "under" and "below" can include both an upper and a lower orientation. The device may be otherwise oriented (rotated 90 degrees or other orientations) and the spatial descriptors used herein are accordingly interpreted.
[0035] The purpose of the terms used herein is only to describe specific embodiments and is not a limitation of the present utility model. As used herein, the singular forms "a", "an" and "the" are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the terms "comprising" and / or "including", when used in this specification, identify the presence of the stated features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups. As used herein, the term "and / or" includes any and all combinations of the associated listed items.
[0036] To thoroughly understand the present utility model, detailed structures and steps will be presented in the following description to illustrate the technical solutions proposed by the present utility model. The preferred embodiments of the present utility model are described in detail below. However, in addition to these detailed descriptions, the present utility model may also have other embodiments.
[0037] In one embodiment, a power redundancy control system is proposed, as Figure 1 shown, the power redundancy control system includes:
[0038] A first battery module 1, a second battery module 2, a first power module 3 and a second power module 4. Among them, the input end of the first battery module 1 is connected to the positive electrode 5 of the high-voltage interface, the output end of the first battery module 1 is connected to the input end of the second battery module 2, and the output end of the second battery module 2 is connected to the negative electrode 6 of the high-voltage interface;
[0039] The primary high-voltage input end of the first power module 3 is connected in parallel with the first battery module 1, the secondary high-voltage output end of the first power module 3 is connected to the AC power interface 9, and the secondary low-voltage output end of the first power module 3 is connected to the first DC power interface 7;
[0040] The primary high-voltage input end of the second power module 4 is in parallel with the second battery module 2, the secondary high-voltage output end of the second power module 4 is connected to the AC power interface 9, and the secondary high-voltage output end of the second power module 4 is in parallel with the secondary high-voltage output end of the first power module 3. The secondary low-voltage output end of the second power supply is connected to the second DC power interface 8.
[0041] Among them, the supply voltages of the first battery module 1 and the second battery module 2 are the same and can be set according to specific circumstances. For example, the first battery module 1 adopts a supply voltage of 400V, and the second battery module 2 adopts a supply voltage of 400V.
[0042] Figure 1Among them, for conventional loads (loads that do not require redundant power supply), they can be connected to the first DC power supply interface 7 and the second DC power supply interface 8 respectively according to strategies such as proximity layout and power distribution. The two power supplies of redundant loads (loads that require redundant power supply) are respectively connected to the first DC power supply interface 7 and the second DC power supply interface 8. When the vehicle or the power redundancy control system of the vehicle is started, the first DC power supply interface 7 in the first power module 3 supplies power to the vehicle's conventional loads and redundant loads, and the second DC power supply interface 8 in the second power module 4 supplies power to the vehicle's conventional loads and redundant loads.
[0043] In the power redundancy control system of this embodiment, by dividing the battery pack into the first battery module 1 and the second battery module 2 with the same voltage, and designing the first power module 3 and the second power module 4 with the same structure, which are respectively connected to the first battery module 1 and the second battery module 2 correspondingly, it is equivalent to having redundant (backup) power supplies, and can meet the functional configuration requirements of L3 and above level autonomous driving or other functions that require two isolated power supplies. Moreover, the structural designs of the two redundant power modules are the same, which can achieve mutual backup, simplify the design and development verification cycle. And, the power redundancy control system can also use the 400V power module. During the voltage boosting process of the vehicle voltage platform, the power module does not need to be re-developed and verified. The solution is mature and reliable, saving the development verification cycle and cost.
[0044] In one embodiment, the first power module 3 includes:
[0045] A first DC converter and a first AC charging module. The DC input end of the first DC converter is the same as the DC input end of the first AC charging module, and the DC input end is used as the primary high-voltage input end of the first power module 3;
[0046] The DC output end of the first DC converter is used as the secondary low-voltage output end of the first power module 3; the AC output end of the first AC charging module is used as the secondary high-voltage output end of the first power module 3.
[0047] Among them, the DC input end of the first DC converter is used to obtain the DC signal of the high-voltage power supply at both ends of the first battery module 1, and the DC output end of the first DC converter is used to output the DC signal of the low-voltage power supply after voltage conversion.
[0048] Similarly, the DC input end of the first AC charging module is also used to obtain the DC signal of the high-voltage power supply at both ends of the first battery module 1. Different from this, the AC output end of the first AC charging module is used to output the AC signal of the high-voltage power supply after voltage conversion and voltage inversion.
[0049] In this embodiment, after the vehicle or the power redundancy control system of the vehicle is started, the first DC converter in the first power module 3 can convert the high-voltage power DC signal in the first battery module 1 into a low-voltage power DC signal to supply power to the conventional loads and redundant loads of the whole vehicle.
[0050] In one embodiment, the first DC converter includes:
[0051] A first DC-AC conversion module 31, a first transformer 32, and a first AC-DC conversion module 33. The input end of the first DC-AC conversion module 31 is the DC input end of the first DC converter. The output end of the first DC-AC conversion module 31 is connected to the input end of the first transformer 32. The first output end of the first transformer 32 is connected to the input end of the first AC-DC conversion module 33. The output end of the first AC-DC conversion module 33 is the DC output end of the first DC converter.
[0052] Among them, the first DC-AC conversion module 31 is used to obtain the high-voltage power DC signal across the first battery module 1 from the input end, and then perform an inversion process to output a high-voltage power AC signal from the output end. The first transformer 32 is used to obtain the high-voltage power AC signal from the input end and output an isolated high-voltage power AC signal from the output end. The first AC-DC conversion module 33 is used to obtain the isolated low-voltage power AC signal from the input end, and then perform a rectification process to output a low-voltage power DC signal from the output end.
[0053] In one embodiment, the first AC charging module includes:
[0054] A second AC-DC conversion module 34 and a second DC-AC conversion module 35. The input end of the second AC-DC conversion module 34 is connected to the second output end of the first transformer 32. The output end of the second AC-DC conversion module 34 is connected to the input end of the second DC-AC conversion module 35. The output end of the second DC-AC conversion module 35 is the AC output end of the first AC charging module.
[0055] Among them, the second AC-DC conversion module 34, the second DC-AC conversion module 35, the first transformer 32, and the first DC-AC conversion module 31 constitute a complete first AC charging module; that is, the first AC charging module and the first DC converter share the first transformer 32 and the first DC-AC conversion module 31. Compared with the first power module 3 of the prior art, the power module of this embodiment saves the cost of a set of transformer and DC-AC conversion module because the first AC charging module and the first DC converter share a set of transformer and DC-AC conversion module, thus saving the overall product cost.
[0056] In one embodiment, the second power module 4 includes:
[0057] A second DC converter and a second AC charging module, wherein the DC input end of the second DC converter is the same as the DC input end of the second AC charging module, and the DC input end is used as the primary high-voltage input end of the second power supply module 4;
[0058] The DC output end of the second DC converter is used as the secondary low-voltage output end of the second power supply module 4; the AC output end of the second AC charging module is used as the secondary high-voltage output end of the second power supply module 4.
[0059] Among them, the DC input end of the second DC converter is used to obtain the high-voltage power DC signal across the second battery module 2, and the DC output end of the second DC converter is used to output the low-voltage power DC signal after voltage conversion.
[0060] Similarly, the DC input end of the second AC charging module is also used to obtain the high-voltage power DC signal across the second battery module 2. The difference is that the AC output end of the second AC charging module is used to output the high-voltage power AC signal after voltage conversion and voltage inversion.
[0061] In this embodiment, when the vehicle or the power redundancy control system of the vehicle is started, the second DC converter in the second power supply module 4 can convert the high-voltage power DC signal in the second battery module 2 into a low-voltage power DC signal to supply power to the regular loads and redundant loads of the whole vehicle.
[0062] In one embodiment, the second DC converter includes:
[0063] A third DC-to-AC module 41, a second transformer 42, and a third AC-to-DC module 43. The input end of the third DC-to-AC module 41 is the DC input end of the second DC converter. The output end of the third DC-to-AC module 41 is connected to the input end of the second transformer 42. The first output end of the second transformer 42 is connected to the input end of the third AC-to-DC module 43. The output end of the third AC-to-DC module 43 is the DC output end of the second DC converter.
[0064] Among them, the third DC-to-AC module 41 is used to obtain the high-voltage power DC signal across the second battery module 2 from the input end, and then perform an inversion process to output the high-voltage power AC signal from the output end; the second transformer 42 is used to obtain the high-voltage power AC signal from the input end and output the isolated high-voltage power AC signal from the output end; the third AC-to-DC module 43 is used to obtain the isolated low-voltage power AC signal from the input end, and then perform a rectification process to output the low-voltage power DC signal from the output end.
[0065] In one embodiment, the second AC charging module includes:
[0066] A fourth AC-DC module 44 and a fourth DC-AC module 45. The input end of the fourth AC-DC module 44 is connected to the second output end of the second transformer 42. The output end of the fourth AC-DC module 44 is connected to the input end of the fourth DC-AC module 45. The output end of the fourth DC-AC module 45 is the AC output end of the second AC charging module.
[0067] Among them, the fourth AC-DC module 44, the fourth DC-AC module 45, the second transformer 42, and the third DC-AC module 41 constitute a complete second AC charging module. That is, it is equivalent to the second AC charging module and the second DC converter sharing the second transformer 42 and the third DC-AC module 41. Compared with the second power supply module 4 of the prior art, the power supply module of this embodiment saves the cost of a set of transformer and DC-AC module because the second AC charging module and the second DC converter share a set of transformer and DC-AC module, thus saving the overall product cost.
[0068] In one embodiment, the maximum power supply voltage of the first battery module 1 is 400V, and the maximum power supply voltage of the second battery module 2 is 400V.
[0069] Among them, when the maximum power supply voltage of the first battery module 1 is 400V and the maximum power supply voltage of the second battery module 2 is 400V, due to the series relationship between the first battery module 1 and the second battery module 2, it is equivalent that the maximum power supply voltage of the overall power supply is 800V.
[0070] In one embodiment, the DC voltage range of the secondary low-voltage output end of the first power supply module 3 is 0 - 24V, and the DC voltage range of the secondary low-voltage output end of the second power supply module 4 is 0 - 24V.
[0071] For example, after the DC voltage output from the secondary low-voltage output end of the first power supply module 3 is set to 12V and the DC voltage output from the secondary low-voltage output end of the second power supply module 4 is set to 12V, when the vehicle or the power redundancy control system of the vehicle is started, the first DC converter in the first power supply module 3 can convert the 400V high-voltage power DC signal in the first battery module 1 into a 12V low-voltage power DC signal to provide power supply for the regular loads and redundant loads of the whole vehicle. Similarly, the second DC converter in the second power supply module 4 can convert the 400V high-voltage power DC signal in the second battery module 2 into a 12V low-voltage power DC signal to provide power supply for the regular loads and redundant loads of the whole vehicle.
[0072] In one embodiment, a vehicle is provided, and the vehicle has the power supply redundancy control system described in the first aspect. Due to the inconsistent load power connected to the secondary low-voltage output ends of the first power supply module 3 and the second power supply module 4 in this power supply redundancy control system, the voltage difference between the two modules will exceed the set threshold, affecting the use of the battery pack. At this time, voltage balancing is required, and the voltage balancing is divided into a charging scenario and a non-charging scenario.
[0073] Among them, the voltage balancing method in the non-charging scenario includes:
[0074] When it is detected that the voltage difference between the first battery module 1 and the second battery module 2 exceeds the set threshold, if the voltage of the first battery module 1 is greater than the voltage of the second battery module 2, the first AC charging module in the first power supply module 3 switches to the discharge mode, and the second AC charging module in the second power supply module 4 switches to the charging mode. At this time, it is equivalent to the first battery module 1 charging the second battery module 2. When it is detected that the voltage difference between the two battery modules is within the threshold range, control the two power supply modules to stop working.
[0075] The voltage balancing method in the charging scenario includes:
[0076] When it is detected that the voltage difference between the first battery module 1 and the second battery module 2 exceeds the set threshold, if the voltage of the first battery module 1 is greater than the voltage of the second battery module 2, the first AC charging module in the first power supply module 3 does not work first, and only the second AC charging module in the second power supply module 4 switches to the charging mode to charge the second battery module 2; after it is detected that the voltage difference between the two modules is within the threshold range, the OBC in the first power supply module 3 switches to the charging mode to charge the first battery module 1 until the charging is completed or finished. Or the OBCs in the two power supply modules enter the charging mode simultaneously, and the charging power is adjusted during the process to make the voltage difference within the threshold. Or when there is enough time, charge both battery modules to 100% SOC respectively, and adjust the voltage difference between the two modules to within the threshold through 100% SOC.
[0077] The above-described embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.
Claims
1. A power redundancy control system, characterized in that, The power redundancy control system includes: A first battery module, a second battery module, a first power module, and a second power module. Among them, the input end of the first battery module is connected to the positive pole of the high-voltage interface, the output end of the first battery module is connected to the input end of the second battery module, and the output end of the second battery module is connected to the negative pole of the high-voltage interface; The primary high-voltage input end of the first power module is connected in parallel with the first battery module. The secondary high-voltage output end of the first power module is connected to the AC power interface, and the secondary low-voltage output end of the first power module is connected to the first DC power interface; The primary high-voltage input end of the second power module is in parallel with the second battery module. The secondary high-voltage output end of the second power module is connected to the AC power interface, and the secondary high-voltage output end of the second power module is in parallel with the secondary high-voltage output end of the first power module. The secondary low-voltage output end of the second power supply is connected to the second DC power interface.
2. The power redundancy control system according to claim 1, characterized in that The first power module includes: A first DC converter and a first AC charging module. The DC input end of the first DC converter is the same as the DC input end of the first AC charging module, and the DC input end is used as the primary high-voltage input end of the first power module; The DC output end of the first DC converter is used as the secondary low-voltage output end of the first power module; the AC output end of the first AC charging module is used as the secondary high-voltage output end of the first power module.
3. The power redundancy control system according to claim 2, wherein The first DC converter includes: A first DC-to-AC module, a first transformer, and a first AC-to-DC module. The input end of the first DC-to-AC module is the DC input end of the first DC converter. The output end of the first DC-to-AC module is connected to the input end of the first transformer. The first output end of the first transformer is connected to the input end of the first AC-to-DC module. The output end of the first AC-to-DC module is the DC output end of the first DC converter.
4. The power redundancy control system according to claim 3, wherein The first AC charging module includes: A second AC-to-DC module and a second DC-to-AC module. The input end of the second AC-to-DC module is connected to the second output end of the first transformer. The output end of the second AC-to-DC module is connected to the input end of the second DC-to-AC module. The output end of the second DC-to-AC module is the AC output end of the first AC charging module.
5. The power redundancy control system according to claim 1, characterized in that, The second power module includes: A second DC converter and a second AC charging module. The DC input end of the second DC converter is the same as the DC input end of the second AC charging module, and the DC input end is used as the primary high-voltage input end of the second power module; The DC output end of the second DC converter is used as the secondary low-voltage output end of the second power module; the AC output end of the second AC charging module is used as the secondary high-voltage output end of the second power module.
6. The power redundancy control system according to claim 5, wherein The second DC converter includes: The third DC-to-AC module, the second transformer, and the third AC-to-DC module. The input end of the third DC-to-AC module is the DC input end of the second DC converter. The output end of the third DC-to-AC module is connected to the input end of the second transformer. The first output end of the second transformer is connected to the input end of the third AC-to-DC module. The output end of the third AC-to-DC module is the DC output end of the second DC converter.
7. The power redundancy control system according to claim 6, wherein The second AC charging module includes: The fourth AC-to-DC module and the fourth DC-to-AC module. The input end of the fourth AC-to-DC module is connected to the second output end of the second transformer. The output end of the fourth AC-to-DC module is connected to the input end of the fourth DC-to-AC module. The output end of the fourth DC-to-AC module is the AC output end of the second AC charging module.
8. The power redundancy control system according to any one of claims 1 to 7, characterized in that The maximum power supply voltage of the first battery module is 400V, and the maximum power supply voltage of the second battery module is 400V.
9. The power redundancy control system according to claim 1, wherein The DC voltage range of the secondary low-voltage output end of the first power module is 0 - 24V, and the DC voltage range of the secondary low-voltage output end of the second power module is 0 - 24V.
10. A vehicle, characterized in that, The vehicle has the power redundancy control system according to any one of claims 1 to 9.