Integrated control device, vehicle-mounted power system and vehicle

Abstract

The utility model relates to the technical field of electric vehicles, and discloses an integrated control device, a vehicle-mounted power system and a vehicle. The integrated control device comprises a bidirectional DC-DC converter, a power distribution unit, a boost DC-DC converter, a micro-control unit and a box body. The bidirectional DC-DC converter, the power distribution unit, the boost DC-DC converter and the micro-control unit are arranged in the box body. The integrated control device realizes the control integration of a plurality of high-voltage components of the vehicle-mounted power system, integrates the computing power of the controller, avoids the waste of computing resources, and improves the utilization rate of the controller. And a plurality of high-voltage components of the vehicle-mounted power system are integrated, so that the number of high-voltage wiring harnesses is reduced, the assembly efficiency is improved, and the production design management cost of the vehicle-mounted power system is reduced.

Description

Technical Field

[0001] This application belongs to the technical field of electric vehicles, and particularly relates to an integrated control device, an on-vehicle power system, and a vehicle. Background Art

[0002] Due to the increasing requirements for reducing carbon emissions and the initiative for green and environmental-friendly travel, new energy vehicles have gradually won the favor of consumers in the market. With the development of hydrogen fuel engine technology and the maturity of electric vehicles, the hydrogen fuel cell on-vehicle power system has become one of the main configurations of new energy vehicles. The high-voltage part of the hydrogen fuel cell power system includes key components such as a hydrogen fuel cell stack, a battery stack auxiliary system, a bidirectional DC / DC converter, a boost DC / DC converter, a PDU (Power Distribution Unit), a power battery, an MCU (Microcontroller Unit), and a motor. Each of these components is an independent part and is connected to each other through high-voltage harnesses respectively. The existing wiring harness circuit of the hydrogen fuel cell power system is intricate and has a low degree of lightweight. Coupled with a large number of relatively complex vehicle parts, the production design cost of the on-vehicle power system is relatively high, and the management and maintenance workload is relatively large. Summary of the Utility Model

[0003] Aiming at the above deficiencies in the prior art, the purpose of the embodiments of the present invention is to provide an integrated control device, an on-vehicle power system, and a vehicle.

[0004] To achieve the above purpose, on the one hand, this application provides an integrated control device, including:

[0005] A bidirectional DC-DC converter;

[0006] A power distribution unit;

[0007] A boost DC-DC converter;

[0008] A micro control unit;

[0009] A box body;

[0010] The bidirectional DC-DC converter, the power distribution unit, the boost DC-DC converter, and the micro control unit are arranged in the box body.

[0011] In the embodiments of this application, the bidirectional DC-DC converter, the power distribution unit, the boost DC-DC converter, and the micro control unit are connected to the same bus bar through high-voltage harnesses, and the contactors corresponding to the bidirectional DC-DC converter, the contactors corresponding to the power distribution unit, the contactors corresponding to the boost DC-DC converter, and the contactors corresponding to the micro control unit are all arranged in the loop where the bus bar is located.

[0012] In the embodiment of the present application, the integrated control device further includes:

[0013] A heat dissipation water channel;

[0014] The bidirectional DC-DC converter, the power distribution unit, the micro control unit, and the boost DC-DC converter are distributed in two layers in the box based on the heat dissipation water channel.

[0015] In the embodiment of the present application, the number of heat dissipation water channels is multiple, and the multiple heat dissipation water channels are connected in series;

[0016] The bidirectional DC-DC converter, the power distribution unit, the micro control unit, and the boost DC-DC converter are distributed in multiple layers in the box based on the multiple heat dissipation water channels.

[0017] In the embodiment of the present application, the integrated control device further includes a voltage stabilizing capacitor, and the voltage stabilizing capacitor is arranged based on the heat dissipation water channel.

[0018] In the embodiment of the present application, the bidirectional DC-DC converter, the power distribution unit, the boost DC-DC converter, and the micro control unit are connected to the same low-voltage interface through a low-voltage wire harness.

[0019] In the embodiment of the present application, the integrated control device further includes a pre-charge circuit, and the contactor corresponding to the pre-charge circuit is the contactor corresponding to the circuit where the bus bar is located.

[0020] The second aspect of the present application provides a vehicle power system, including:

[0021] The integrated control device as described in the above embodiment;

[0022] A battery stack auxiliary system, connected to the bidirectional DC-DC converter in the integrated control device;

[0023] A power battery, connected to the power distribution unit in the integrated control device through a pre-charge circuit;

[0024] A hydrogen fuel cell stack, connected to the boost DC-DC converter in the integrated control device;

[0025] A drive motor, connected to the micro control unit in the integrated control device.

[0026] In the embodiment of the present application, the vehicle power system further includes a detection module, the detection module is connected to the low-voltage interface of the integrated control device, and the detection module includes a temperature monitoring unit, a voltage monitoring unit, a current monitoring unit, a drive circuit, a digital quantity acquisition circuit, an analog quantity acquisition circuit, a control circuit, and a power supply circuit.

[0027] The third aspect of the present application provides a vehicle, including:

[0028] The vehicle power system as described in the above embodiments.

[0029] In the above technical solution, the integrated control device includes a bidirectional DC-DC converter, a power distribution unit, a boost DC-DC converter, a micro control unit, and a box body. The bidirectional DC-DC converter, the power distribution unit, the boost DC-DC converter, and the micro control unit are arranged in the box body. The integrated control device realizes the control integration of multiple high-voltage components of the vehicle power system. Through the micro control unit, the integrated control of these multiple high-voltage components is carried out, integrating the computing power of the controller, avoiding waste of computing resources, and improving the utilization rate of the controller. Moreover, by integrating multiple high-voltage components of the vehicle power system, the number of high-voltage harnesses is reduced, the assembly efficiency is improved, and the production design management cost of the vehicle power system is reduced.

[0030] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent specific embodiments section. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings are used to provide a further understanding of the embodiments of the present application, and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present application, but do not constitute a limitation to the embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts. In the drawings:

[0032] Figure 1 is a schematic structural diagram of an integrated control device according to an embodiment of the present application;

[0033] Figure 2 is a schematic structural diagram of an integrated control device according to another embodiment of the present application;

[0034] Figure 3 is a schematic structural diagram of a vehicle power system according to an embodiment of the present application.

[0035] DESCRIPTION OF THE REFERENCE NUMERALS

[0036] 10. Integrated control device; 100. Bidirectional DC-DC converter; 200. Power distribution unit; 300. Boost DC-DC converter; 400. Micro control unit; 101. Box body; 110. Heat dissipation channel; 120. Voltage stabilizing capacitor; 500. Battery stack auxiliary system; 600. Power battery; 700. Hydrogen fuel cell stack; 800. Drive motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0037] The following detailed description of the specific embodiments of the present application is made with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for the purpose of illustrating and explaining the present application, and are not used to limit the present application.

[0038] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present application, then such directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a certain specific posture (as shown in the drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0039] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, then such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0040] Figure 1 Schematically shows the integrated control device 10 of the first embodiment of the present application. As Figure 1 shown, in an embodiment of the present application, an integrated control device 10 is provided. The integrated control device 10 includes:

[0041] A bidirectional DC-DC converter 100;

[0042] A power distribution unit 200;

[0043] A boost DC-DC converter 300;

[0044] A micro control unit 400;

[0045] A box body 101;

[0046] The bidirectional DC-DC converter 100, the power distribution unit 200, the boost DC-DC converter 300, and the micro control unit 400 are arranged in the box body 101.

[0047] In this embodiment, it should be noted that the bidirectional DC-DC converter 100, the power distribution unit 200, the boost DC-DC converter 300, and the micro control unit 400 are all arranged in the box body 101. According to different actual requirements such as vehicle models and vehicle application scenarios, the materials used for the box body 101 and the size of the box body 101 can be adjusted adaptively. Through the box body 101, the volume of the integrated control device 10 can be standardized, and the internal components in the integrated control device 10 can be fixed, reducing the occurrence of situations such as circuit errors caused by movement and misalignment, and improving the safety protection ability for the internal components of the integrated control device 10.

[0048] Specifically, in one embodiment, the bidirectional DC-DC converter 100, the power distribution unit 200, the boost DC-DC converter 300, and the micro-control unit 400 are connected to the same bus bar through a high-voltage wire harness, and the contactors corresponding to the bidirectional DC-DC converter 100, the contactors corresponding to the power distribution unit 200, the contactors corresponding to the boost DC-DC converter 300, and the contactors corresponding to the micro-control unit 400 are all arranged in the loop where the bus bar is located.

[0049] It should be noted that a hydrogen fuel cell power system generally includes high-voltage components such as a hydrogen fuel cell stack, a battery stack auxiliary system, a bidirectional DC / DC converter, a boost DC / DC converter, a PDU, a power battery, an MCU, and a motor. In the hydrogen fuel cell power system, the hydrogen fuel cell stack converts chemical energy into electrical energy, and the boost DC / DC converter unidirectionally boosts the direct current of the hydrogen fuel cell stack into high-voltage direct current suitable for the power battery, the motor controller, and the vehicle auxiliary equipment; at the same time, the bidirectional DC / DC converter can step down the direct current output by the power battery into high-voltage direct current suitable for the battery stack auxiliary system, and at the same time, when the battery stack auxiliary system sends out electrical energy, the bidirectional DC / DC converter acts as a boost converter to boost the electrical energy output by the battery stack auxiliary system to high-voltage direct current suitable for the power battery. The high-voltage direct current is delivered to the MCU through the PDU for chopping conversion into three-phase alternating current and output to the motor, so that the motor rotates and does work as required, converting electrical energy into mechanical energy.

[0050] In the existing hydrogen fuel cell power system, each independent high-voltage part is connected through a high-voltage wire harness to form a system as a whole. The wire harness loop of this hydrogen fuel cell power system is intricate and has a low degree of lightweight. Coupled with a large number of vehicle parts that are also relatively complex, the production and design costs of the vehicle-mounted power system are relatively high, and the management and maintenance workload is large. To solve the above problems, in this embodiment, the integration of the bidirectional DC-DC converter 100, the power distribution unit 200, the boost DC-DC converter 300, and the micro-control unit 400 is achieved through the integrated control device 10, and the integration of some high-voltage components of the hydrogen fuel power system is achieved through the integrated control device 10, so as to simplify the component connection relationship of the vehicle-mounted power system, reduce the number of hardware circuits, reduce the overall volume of the vehicle-mounted power system, and reduce the management and maintenance costs of the vehicle-mounted power system.

[0051] Specifically, the bidirectional DC-DC converter 100 (BDC, Bi-directional DC-DC Converter) is a device capable of bidirectional energy transfer between two DC voltages. Its main feature is that the polarities of the input and output voltages remain unchanged, but the directions of the input and output currents can be changed, thus achieving bidirectional energy transmission. In this embodiment, the bidirectional DC / DC converter can convert the voltage output by the power battery into a voltage suitable for the battery stack auxiliary system, and can also convert the voltage output by the battery stack auxiliary system into a voltage suitable for the power battery. The power distribution unit 200 (PDU, Power Distribution Unit) is a power connection device mainly used to distribute power from the power system to each component or system. The boost DC-DC converter 300 is a power electronic device that converts a lower DC voltage into a higher DC voltage. The microcontroller unit 400 (MCU, Microcontroller Unit) is a chip-level computer that can perform different combined controls for different application scenarios. It can be understood that the loop where the busbar is located is the main loop in the integrated control device 10. The bidirectional DC-DC converter 100, the power distribution unit 200, the boost DC-DC converter 300, and the microcontroller unit 400 are connected to the same busbar through high-voltage harnesses, and the contactors corresponding to the bidirectional DC-DC converter 100, the contactors corresponding to the power distribution unit 200, the contactors corresponding to the boost DC-DC converter 300, and the contactors corresponding to the microcontroller unit 400 are all arranged in the loop where the busbar is located.

[0052] In this embodiment, the busbars and contactors of the bidirectional DC-DC converter 100, the power distribution unit 200, the boost DC-DC converter 300, and the microcontroller unit 400 are shared on the same loop. The busbar refers to the copper or aluminum bar connecting the main switch and the switches in each branch circuit. The surface of the busbar is insulated, and its main function is to be used as a wire. A contactor is a widely used switching electrical appliance that can realize the on / off of the main circuit through a control circuit using electromagnetic, pneumatic, or hydraulic principles, etc. It can be understood that when sharing the contactors corresponding to the bidirectional DC-DC converter 100, the contactors corresponding to the power distribution unit 200, the contactors corresponding to the boost DC-DC converter 300, and the contactors corresponding to the microcontroller unit 400, it does not necessarily mean using only one contactor. It can be achieved by installing one or more contactors on the busbar, and corresponding to the control of the bidirectional DC-DC converter 100, the power distribution unit 200, the boost DC-DC converter 300, and the microcontroller unit 400 through the one or more contactors, so as to realize centralized control.

[0053] In this embodiment, the integrated control device 10 includes a bidirectional DC-DC converter 100, a power distribution unit 200, a boost DC-DC converter 300, and a micro-control unit 400. The bidirectional DC-DC converter 100, the power distribution unit 200, the boost DC-DC converter 300, and the micro-control unit 400 are connected to the same bus bar through a high-voltage wire harness, and the contactors corresponding to the bidirectional DC-DC converter 100, the contactors corresponding to the power distribution unit 200, the contactors corresponding to the boost DC-DC converter 300, and the contactors corresponding to the micro-control unit 400 are all arranged in the loop where the bus bar is located. The integrated control device 10 realizes the control integration of multiple high-voltage components of the vehicle-mounted power system. The multiple high-voltage components are integrally controlled through the micro-control unit 400, integrating the computing power of the controller, avoiding waste of computing resources, and improving the utilization rate of the controller. Moreover, by integrating multiple high-voltage components of the vehicle-mounted power system, the number of high-voltage wire harnesses is reduced, the assembly efficiency is improved, and the production design management cost of the vehicle-mounted power system is reduced.

[0054] Reference Figure 2 , in one embodiment, the integrated control device 10 further includes:

[0055] A heat dissipation water channel 110;

[0056] The bidirectional DC-DC converter 100, the power distribution unit 200, the micro-control unit 400, and the boost DC-DC converter 300 are distributed in two layers in the box 101 based on the heat dissipation water channel 110.

[0057] In this embodiment, it should be noted that the heat dissipation water channel 110 can be linear, and both ends of the heat dissipation water channel 110 are located at two opposite sides of the integrated control device 10 respectively. The heat dissipation water channel 110 can be located in the middle of the box 101 or on either side close to the box 101. The cross-section of the heat dissipation water channel 110 can be circular, rectangular, square or other shapes. The heat dissipation water channel 110 can divide the box 101 into two layers, and the bidirectional DC-DC converter 100, the power distribution unit 200, the micro-control unit 400, and the boost DC-DC converter 300 are distributed in two layers in the box 101 based on the heat dissipation water channel 110. Specifically, the target component is located on one side of the heat dissipation water channel 110, and the remaining components are located on the other side of the heat dissipation water channel 110, where the target component is at least one of the bidirectional DC-DC converter 100, the power distribution unit 200, the micro-control unit 400, and the boost DC-DC converter 300, and the remaining components are the components of the bidirectional DC-DC converter 100, the power distribution unit 200, the micro-control unit 400, and the boost DC-DC converter 300 except the target component. It can be understood that the water channel volume and flow parameters of the heat dissipation water channel 110 can be set correspondingly based on the actual application scenario.

[0058] In this embodiment, the heat dissipation water channel 110 is arranged in the box body 101, and the internal components in the integrated control device 10 are dispersed on both sides of the heat dissipation water channel 110, so as to realize the simultaneous heat dissipation of each internal component of the integrated control device 10, and improve the utilization rate of the water circulation of the heat dissipation water channel 110.

[0059] In one embodiment, the number of the heat dissipation water channels 110 is multiple, and the multiple heat dissipation water channels 110 are connected in series;

[0060] The bidirectional DC-DC converter 100, the power distribution unit 200, the micro control unit 400 and the boost DC-DC converter 300 are distributed in multiple layers in the box body 101 based on the multiple heat dissipation water channels 110.

[0061] In this embodiment, it should be noted that the heat dissipation water channel 110 may include multiple ones, the multiple heat dissipation water channels 110 are connected in series, and the multiple heat dissipation water channels 110 may be distributed in an S shape or a Z shape. The bidirectional DC-DC converter 100, the power distribution unit 200, the micro control unit 400 and the boost DC-DC converter 300 are distributed in multiple layers in the box body 101 based on the multiple heat dissipation water channels 110. Specifically, the installation positions of the bidirectional DC-DC converter 100, the power distribution unit 200, the micro control unit 400 and the boost DC-DC converter 300 in the box body 101 are close to any one of the multiple heat dissipation water channels 110. The installation positions of the bidirectional DC-DC converter 100, the power distribution unit 200, the micro control unit 400 and the boost DC-DC converter 300 in the box body 101 are not strictly limited, and reasonable distribution can be carried out based on the actual application situation.

[0062] In this embodiment, by increasing the heat dissipation water channel 110, the heat dissipation capacity of the integrated control device 10 is improved, and the heat dissipation protection of each internal component in the integrated control device 10 is enhanced.

[0063] Reference Figure 2 , in one embodiment, the integrated control device 10 further includes a voltage stabilizing capacitor 120, and the voltage stabilizing capacitor 120 is arranged based on the heat dissipation water channel 110.

[0064] It should be noted that the voltage stabilizing capacitor 120 can achieve the purpose of voltage stabilization by utilizing the charging and discharging characteristics of the capacitor. When the power supply voltage fluctuates, the capacitor can automatically perform charging and discharging operations. Specifically, when the power supply voltage increases, the capacitor discharges to consume the excess electrical energy; when the power supply voltage decreases, the capacitor charges to supplement the missing electrical energy, thereby keeping the voltage in the circuit within a relatively stable range. In this embodiment, the voltage stabilizing capacitor 120 is connected to the bus bar through a high-voltage wire harness, and the sharing of the high-voltage wire harness further reduces the circuit complexity. Moreover, to ensure the working performance and service life of the voltage stabilizing capacitor 120, the voltage stabilizing capacitor 120 is arranged based on the heat dissipation water channel 110 to achieve effective heat dissipation of the voltage stabilizing capacitor 120.

[0065] In one embodiment, the bidirectional DC-DC converter 100, the power distribution unit 200, the boost DC-DC converter 300, and the micro control unit 400 are connected to the same low-voltage interface through a low-voltage wire harness.

[0066] In this embodiment, it should be noted that in order to prevent the integrated control device 10 from having an operating failure, which may further lead to a failure of the vehicle-mounted power system, during the operation of the integrated control device 10, it is necessary to monitor the working states of its internal components. Specifically, the temperature, voltage, current, digital signals, analog signals, and other information of each internal component in the integrated control device 10 can be detected through detection modules such as a temperature monitoring unit, a voltage monitoring unit, a current monitoring unit, a drive circuit, a digital quantity acquisition circuit, an analog quantity acquisition circuit, a control circuit, and a power supply circuit. The connection detection of each internal component in the integrated control device 10 is carried out through a low-voltage circuit. In this embodiment, to further improve the line utilization rate inside the integrated control device 10 and reduce the design and management cost of the integrated control device 10, the bidirectional DC-DC converter 100, the power distribution unit 200, the boost DC-DC converter 300, and the micro control unit 400 inside the integrated control device 10 are connected to the same low-voltage interface through a low-voltage wire harness, and the detection module detects the internal components of the integrated control device 10 through this low-voltage interface. This improves the line utilization rate inside the integrated control device 10 and reduces the circuit complexity. Furthermore, it improves the integration and lightweight degree of the integrated control device 10.

[0067] In one embodiment, the integrated control device 10 further includes a pre-charge circuit, and the contactor corresponding to the pre-charge circuit is the contactor corresponding to the circuit where the bus bar is located.

[0068] In this embodiment, it should be noted that the pre-charge circuit can be used to reduce the power-on current impact at the moment when the circuit is turned on, protect the internal components in the integrated control device 10, and improve the reliability and lifespan of the circuit. In this embodiment, the contactor of the pre-charge circuit is shared with the contactor on the main circuit, further enhancing the integration degree of the internal circuit of the integrated control device 10.

[0069] Reference Figure 3 , this application embodiment also provides a vehicle power system, including:

[0070] The integrated control device 10 as described in the above embodiment;

[0071] The battery stack auxiliary system 500, connected to the bidirectional DC-DC converter 100 in the integrated control device 10;

[0072] The power battery 600, connected to the power distribution unit 200 in the integrated control device 10 through a pre-charge circuit;

[0073] The hydrogen fuel cell stack 700, connected to the boost DC-DC converter 300 in the integrated control device 10;

[0074] The drive motor 800, connected to the micro control unit 400 in the integrated control device 10.

[0075] In this embodiment, it should be noted that in the vehicle power system, the battery stack auxiliary system 500 is connected to the bidirectional DC-DC converter 100 in the integrated control device 10; the power battery 600 is connected to the power distribution unit 200 in the integrated control device 10 through a pre-charge circuit; the hydrogen fuel cell stack 700 is connected to the boost DC-DC converter 300 in the integrated control device 10; the drive motor 800 is connected to the micro control unit 400 in the integrated control device 10. Specifically, the hydrogen fuel cell stack 700 converts chemical energy into electrical energy, and the boost DC / DC converter converts the direct current of the hydrogen fuel cell stack 700 into a unidirectional boost of high-voltage direct current suitable for the power battery 600, the motor controller, and the vehicle auxiliary equipment; at the same time, the bidirectional DC / DC converter can step down the direct current output by the power battery 600 into high-voltage direct current suitable for the battery stack auxiliary system 500, and at the same time, when the battery stack auxiliary system 500 sends out electrical energy, the bidirectional DC / DC converter acts as a boost converter to boost the electrical energy output by the battery stack auxiliary system 500 to high-voltage direct current suitable for the power battery 600. The high-voltage direct current is distributed to the MCU through the PDU for chopping conversion into three-phase alternating current and output to the drive motor 800, so that the drive motor 800 rotates and does work as required, converting electrical energy into mechanical energy. Through the integrated control device 10, the number of high-voltage wiring harnesses in the vehicle power system is reduced, providing great convenience for the assembly of the vehicle power system and reducing the production design management cost.

[0076] Further, in one embodiment, the vehicle power system further includes a detection module. The detection module is connected to the low-voltage interface of the integrated control device 10. The detection module includes a temperature monitoring unit, a voltage monitoring unit, a current monitoring unit, a drive circuit, a digital quantity acquisition circuit, an analog quantity acquisition circuit, a control circuit, and a power supply circuit.

[0077] The detection module is used to detect each internal component in the integrated control device 10. Since each internal component in the integrated control device 10 has been connected to the same low-voltage interface through a low-voltage harness, in this embodiment, by connecting the detection module to this low-voltage interface, the detection of each internal component in the integrated control device 10 can be achieved, improving the detection efficiency of the integrated control device 10.

[0078] The embodiment of the present application further provides a vehicle, including:

[0079] The vehicle power system as described in the above embodiment.

[0080] In this embodiment, it should be noted that the vehicle includes, but is not limited to, various passenger vehicle models such as sedans, SUVs (Sports Utility Vehicles), MPVs (Multi-Purpose Vehicles); commercial vehicle models such as buses, trucks, and cold-chain logistics trucks; and special vehicle models such as sanitation vehicles, fire trucks, and ambulances.

[0081] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and moreover, the first feature being "above", "over", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "beneath", and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature has a lower horizontal height than the second feature.

[0082] In this application, unless otherwise clearly specified or limited, terms such as "installed", "connected", "linked", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0083] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0084] It should also be noted that the term "comprising", "including", or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, commodity, or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, commodity, or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, commodity, or device including the element.

[0085] Although the embodiments of this application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting this application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. An integrated control device, characterized in that, Comprising: Bidirectional DC-DC converter; Power distribution unit; Boost DC-DC converter; Microcontroller unit; Cabinet; The bidirectional DC-DC converter, the power distribution unit, the boost DC-DC converter and the microcontroller unit are arranged in the cabinet; The bidirectional DC-DC converter, the power distribution unit, the boost DC-DC converter and the microcontroller unit are connected to the same busbar through high-voltage wire harnesses, and the contactors corresponding to the bidirectional DC-DC converter, the power distribution unit, the boost DC-DC converter and the microcontroller unit are all arranged in the loop where the busbar is located.

2. The integrated control device according to claim 1, wherein The integrated control device further comprises: Heat dissipation water channel; The bidirectional DC-DC converter, the power distribution unit, the microcontroller unit and the boost DC-DC converter are distributed in two layers in the cabinet based on the heat dissipation water channel.

3. The integrated control device according to claim 2, characterized in that, The number of the heat dissipation water channels is multiple, and the multiple heat dissipation water channels are connected in series; The bidirectional DC-DC converter, the power distribution unit, the microcontroller unit and the boost DC-DC converter are distributed in multiple layers in the cabinet based on the multiple heat dissipation water channels.

4. The integrated control device according to claim 2, characterized in that, The integrated control device further comprises a voltage stabilizing capacitor, and the voltage stabilizing capacitor is arranged based on the heat dissipation water channel.

5. The integrated control device according to claim 1, characterized in that, The bidirectional DC-DC converter, the power distribution unit, the boost DC-DC converter and the microcontroller unit are connected to the same low-voltage interface through low-voltage wire harnesses.

6. The integrated control device according to claim 1, wherein The integrated control device further comprises a pre-charge circuit, and the contactor corresponding to the pre-charge circuit is the contactor corresponding to the loop where the busbar is located.

7. A vehicle power system, characterized in that, Comprising: The integrated control device according to any one of claims 1 to 6; Battery stack auxiliary system, connected to the bidirectional DC-DC converter in the integrated control device; Power battery, connected to the power distribution unit in the integrated control device through the pre-charge circuit; Hydrogen fuel cell stack, connected to the boost DC-DC converter in the integrated control device; Drive motor, connected to the microcontroller unit in the integrated control device.

8. The vehicle power system according to claim 7, wherein The vehicle-mounted power system further comprises a detection module, the detection module is connected to the low-voltage interface of the integrated control device, and the detection module comprises a temperature monitoring unit, a voltage monitoring unit, a current monitoring unit, a drive circuit, a digital quantity acquisition circuit, an analog quantity acquisition circuit, a control circuit and a power supply circuit.

9. A vehicle, characterized in that, Comprising: The vehicle-mounted power system according to any one of claims 7 to 8.

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