Integrated power control system and range-extended electric vehicle

Abstract

This invention discloses an integrated power control system and a range-extended electric vehicle, belonging to the field of automotive component integration technology. It includes a power battery and a first drive unit electrically connected to the power battery. The first drive unit includes a rear-drive motor, a first motor controller, and a battery pack management system (BMS). A first power distribution unit is connected to the rear-drive motor. The first power distribution unit is electrically connected to the power battery, the first motor controller, and the battery pack BMS. The first motor controller is electrically connected to the rear-drive motor, and the battery pack BMS is electrically connected to the power battery. This invention can solve the problems in related technologies, such as limitations on increasing the power battery capacity due to the increased number of components in range-extended electric vehicles, limited trunk space, increased vehicle design difficulty due to the increased number of wiring harnesses, and difficulty in ensuring the stability of connections between components.

Description

Technical Field

[0001] This invention belongs to the field of automotive component integration technology, particularly integrated power control systems and range-extended electric vehicles. Background Technology

[0002] A range-extended electric vehicle (REEV) is a type of vehicle that uses a hybrid powertrain. It combines features of a battery electric vehicle (BEV) and a traditional gasoline-powered vehicle. It consists of an electric drive system and a small range extender. The battery pack powers the electric drive system to propel the vehicle. When the battery is low, the range extender automatically activates, generating electricity to power the electric drive system and simultaneously charging the battery pack to extend the driving range.

[0003] Compared to pure electric vehicles, range-extended electric vehicles (REEVs) offer longer driving range and greater flexibility. Users can utilize the engine to generate electricity, addressing the issue of insufficient battery range and mitigating the limitations of pure electric vehicles for long-distance travel or when charging is unavailable. Simultaneously, REEVs allow users to enjoy the zero emissions and low noise advantages of pure electric drive in daily urban driving. By combining pure electric power with engine generation, REEVs provide a longer driving range to meet the needs of users with long-distance and special driving requirements. This design helps reduce reliance on traditional fuel, decreases emissions, and provides users with more flexible travel options.

[0004] The inventors discovered that range-extended electric vehicles (REEVs) add many components and wiring harnesses compared to traditional pure electric vehicles, resulting in very limited overall layout space. Since the capacity of the power battery directly affects the driving range of an electric vehicle, this imposes certain limitations on further expanding the capacity of the power battery and further improving the driving range of REEVs; in addition, the lower component integration also makes the trunk space of the car relatively small.

[0005] The inventors also discovered that as the number of spatial components and wiring harnesses in range-extended electric vehicles increases, on the one hand, the required space increases, leading to greater difficulty in the layout and size design of the entire vehicle; on the other hand, within the limited space of new energy electric vehicles, the difficulty of connecting wiring harnesses increases, making it easy for wiring harness connections to become loose, thus affecting the stability of the connection between components. Summary of the Invention

[0006] The purpose of this invention is to provide an integrated power control system and a range-extended electric vehicle, which can solve the problems in related technologies, such as the limitation on the increase of power battery volume caused by the increase of components in range-extended electric vehicles, the small trunk space, the increased difficulty of vehicle design caused by the increase in the number of wiring harnesses, and the difficulty in ensuring the stability of the connection between components.

[0007] The technical solution is as follows:

[0008] The first aspect of the present invention provides an integrated power control system.

[0009] An integrated power control system includes a power battery and a first drive unit electrically connected to the power battery. The first drive unit includes a rear drive motor, a first motor controller, and a battery pack management system (BMS). A first power distribution unit is connected to the rear drive motor. The first power distribution unit is electrically connected to the power battery, the first motor controller, and the battery pack management system (BMS). The first motor controller is electrically connected to the rear drive motor, and the battery pack management system (BMS) is electrically connected to the power battery.

[0010] In one possible implementation, the first drive unit further includes an on-board charger and a DC / DC converter, both of which are electrically connected to the first power distribution unit and the slow charging port in the charging port.

[0011] In one possible implementation, the power battery is also directly electrically connected to the fast charging port in the charging port.

[0012] In one possible implementation, the first drive unit further includes a core electronic control unit, which is electrically connected to the first power distribution unit.

[0013] In one possible implementation, the first motor controller, battery pack BMS, on-board charger, DC / DC converter, and core electronic control unit are all mounted on the rear drive motor.

[0014] In one possible implementation, the power battery is also electrically connected to a second drive unit, which includes an engine, a generator, and a second motor controller. The engine provides power to the generator, and the generator is connected to a second power distribution unit. The second power distribution unit is electrically connected to the power battery and the second motor controller, respectively, and the second motor controller is electrically connected to the generator.

[0015] In one possible implementation, the second power distribution unit is also electrically connected to the vehicle heater and the electric air compressor, respectively.

[0016] In one possible implementation, the generator is also integrated with an engine electronic controller (ECU), which is electrically connected to a second power distribution unit.

[0017] In one possible implementation, the system further includes a generator-electric air compressor high-voltage line, a generator-battery pack high-voltage line, a generator-PTC high-voltage line, a rear-drive motor-battery pack high-voltage line, a charging port-battery pack high-voltage line, and a charging port-rear-drive motor high-voltage line. The generator-electric air compressor high-voltage line connects the second power distribution unit and the electric air compressor; the generator-battery pack high-voltage line connects the second power distribution unit and the power battery; the generator-PTC high-voltage line connects the second power distribution unit and the vehicle heater; the rear-drive motor-battery pack high-voltage line connects the first power distribution unit and the power battery; the charging port-battery pack high-voltage line connects the power battery and the fast-charging port in the charging port; and the charging port-rear-drive motor high-voltage line connects the first power distribution unit and the slow-charging port in the charging port.

[0018] A second aspect of the present invention provides a range-extended electric vehicle.

[0019] A range-extended electric vehicle, the range-extended electric vehicle including the integrated power control system as described in the first aspect.

[0020] The present invention has the following beneficial effects:

[0021] 1. This invention provides an integrated power control system and a range-extended electric vehicle. The first drive unit includes a rear-drive motor, a first motor controller, and a battery pack management system (BMS). A first power distribution unit is connected to the rear-drive motor, and the first power distribution unit is electrically connected to the power battery, the first motor controller, and the battery pack BMS. This solution integrates the battery pack BMS into the first drive unit. The battery pack BMS is electrically connected to the power battery to control it, which increases the space available for the power battery. When the power battery capacity needs to be increased, it reduces the space constraints caused by the increased number of components in the range-extended electric vehicle, thus further improving the overall vehicle range.

[0022] 2. The present invention integrates the core electronic control unit (VCU) on the first drive unit, which can increase the layout space of the cabin and improve the overall vehicle comfort and trunk space.

[0023] 3. The present invention also integrates an on-board charger (OBC), a DC / DC converter, and a first power distribution unit (PDU) on the rear drive motor of the first drive unit, which reduces the arrangement of the CDU, increases the rear battery arrangement space, and improves the overall vehicle NVH.

[0024] 4. The charging port of the present invention includes a fast charging port and a slow charging port. The fast charging port is directly electrically connected to the battery pack through a high-voltage line to charge the battery pack. The slow charging port is connected to the on-board charger (OBC) integrated with the rear drive motor through a high-voltage line to convert AC power to DC power and charge the battery pack. This optimizes the connection method of the high-voltage charging line of the power battery, enabling the power battery to be charged in two charging methods with as few high-voltage lines as possible.

[0025] 5. The present invention also integrates an engine electronic controller (ECU) on the generator of the second drive unit, and the engine electronic controller (ECU) is electrically connected to the second power distribution unit. By integrating the ECU, the front compartment space can be increased, making the low-voltage wiring harness of the whole vehicle more compact and aesthetically pleasing. The use of an integrated multi-functional generator not only reduces the size of components and lowers maintenance costs, but also improves the overall vehicle performance.

[0026] 6. The present invention connects a first power distribution unit to the rear drive motor of the first drive unit and a second power distribution unit to the generator of the second drive unit. By using the first power distribution unit and the second power distribution unit to achieve the function of splitting the wiring, the number of wiring harnesses in the whole vehicle can be reduced, and the space occupied by the wiring harnesses in the interior of the new energy electric vehicle can be reduced. This is beneficial to reducing the difficulty of the layout and size design of the whole vehicle and improving the stability of the connection between the components.

[0027] 7. This invention features a high degree of integration of powertrain, high-voltage components, and low-voltage components. This integration reduces component size and the number of parts, lowers maintenance costs, and improves overall vehicle performance. By highly integrating the powertrain, high-voltage components, and low-voltage components, the front compartment and cabin space of the vehicle can be increased, addressing multi-dimensional issues related to layout, manufacturing processes, safety, and temperature fields during vehicle development. This shortens the vehicle development cycle, reduces overall vehicle costs, and enhances the vehicle's market competitiveness.

[0028] Of course, any product implementing this invention does not necessarily need to achieve all the advantages described above simultaneously. It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and do not limit the invention. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention.

[0031] Figure 2 This is a front view of the all-in-one integrated rear drive motor for a range-extended electric vehicle according to Embodiment 1 of the present invention.

[0032] Figure 3 This is a side view of the integrated rear-drive motor of the range-extended electric vehicle according to Embodiment 1 of the present invention.

[0033] Figure 4 This is a schematic diagram of the structure of the multi-functional generator for range-extended electric vehicles according to Embodiment 1 of the present invention.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 1. Engine; 2. Generator; 3. Power Battery; 4. Rear Drive Motor; 5. Electric Air Compressor; 6. On-board Heater; 7. Generator-Electric Air Compressor High Voltage Line; 8. Generator-Battery Pack High Voltage Line; 9. Generator-PTC High Voltage Line; 10. Rear Drive Motor-Battery Pack High Voltage Line; 11. Charging Port-Battery Pack High Voltage Line; 12. Charging Port-Rear Drive Motor High Voltage Line; 13. Charging Port; 14. First Power Distribution Unit; 15. Second Power Distribution Unit; 16. First Power Distribution Unit High Voltage Line Interface; 17. First Battery Pack High Voltage Line Interface; 18. 12V Wiring Harness Interface; 19. Vehicle Low Voltage Wiring Harness Interface; 20. Slow Charge High Voltage Line Interface; 21. PTC High Voltage Line Interface; 22. EAC High Voltage Line Interface; 23. Second Battery Pack High Voltage Line Interface. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Example 1:

[0038] Compared to pure electric vehicles, range-extended electric vehicles have a longer driving range and more flexible usage. Users can use the engine to generate electricity to solve the problem of insufficient battery range, thereby alleviating the limitations of pure electric vehicles in long-distance travel or when charging is unavailable.

[0039] To further improve the driving range of range-extended electric vehicles (REEVs), it is necessary to expand the capacity of their original power battery. However, REEVs add many components and wiring harnesses compared to traditional pure electric vehicles, resulting in very limited overall layout space. Since the capacity of the power battery directly affects the driving range of an electric vehicle, this imposes certain limitations on further expanding the battery capacity and improving the driving range of REEVs. Furthermore, the lower component integration also makes the trunk space relatively small. Therefore, optimizing the spatial layout of REEVs to achieve higher integration of components and more efficient use of space, thereby increasing the space available for the power battery, trunk, and other functional equipment, is becoming increasingly important.

[0040] Furthermore, as the number of spatial components in range-extended electric vehicles increases, the number of wiring harnesses also gradually increases. Using a large number of wiring harnesses has two main consequences. First, wiring harnesses occupy a lot of space, increasing the difficulty of overall vehicle layout and size design for new energy electric vehicles. Second, within the limited space of a new energy electric vehicle, the more wiring harnesses there are, the more difficult it is to connect them, and the more likely they are to become loose. This can ultimately affect the stability of the connections between components, and in severe cases, it can compromise the safety and stability of the new energy vehicle's operation.

[0041] Therefore, this embodiment provides an integrated power control system. Applying this integrated power control system in a range-extended electric vehicle can effectively optimize the overall vehicle space, avoiding the limitations on the increase of power battery volume caused by the increase of components, as well as the problem of limited space in the trunk or other functional components. It can reduce the number of wiring harnesses in the vehicle and reduce the space occupied by wiring harnesses in the interior of the new energy electric vehicle, which is beneficial to reducing the difficulty of the layout and size design of the vehicle and improving the stability of the connection between devices.

[0042] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0043] First, the terms used in this embodiment are explained as follows:

[0044] PDU: Power Distribution Unit;

[0045] ECU: Engine Electronic Controller;

[0046] OBC: On-board charger;

[0047] DCDC: DC / DC converter;

[0048] Battery Pack Management System (BMS)

[0049] VCU: Core Electronic Control Unit;

[0050] CDU: Vehicle Distributed Control Unit;

[0051] EAC: Air Conditioner Compressor.

[0052] Figure 1 This is a schematic diagram of an integrated power control system provided in this embodiment. Please refer to [link / reference]. Figure 1 As shown, the integrated power control system may include a power battery 3, and a first drive unit and a second drive unit electrically connected to the power battery 3, wherein the first drive unit is a rear-drive drive unit, and the second drive unit is an integrated range extender. It can be understood that a battery pack is externally disposed on the power battery 3.

[0053] The second drive unit in this embodiment includes an engine 1 and a generator 2. Compared with the electric drive system of a traditional pure electric vehicle, the addition of the engine 1 and generator 2 increases the overall space occupied by the first drive unit and the second drive unit on the vehicle, increasing the difficulty of layout. Furthermore, the integrated layout of the first drive unit and the second drive unit themselves is also more difficult.

[0054] Therefore, in this embodiment, an integrated design of a first motor controller, a first power distribution unit 14, a battery pack BMS, an on-board charger, a DC / DC converter, and a core electronic control unit is adopted in the first drive unit. The first motor controller, the first power distribution unit 14, the battery pack BMS, the on-board charger, the DC / DC converter, and the core electronic control unit are all integrated onto the rear drive motor 4 of the first drive unit. In the second drive unit, an integrated design of a second motor controller, a second power distribution unit 15, a high-voltage interface of the on-board heater 6, a high-voltage interface of the electric air compressor 5, and an engine electronic control unit (ECU) is adopted. The second motor controller, the second power distribution unit 15, and the engine electronic control unit (ECU) are all integrated onto the generator 2 of the second drive unit. By adopting the above solution, the overall vehicle layout space is effectively increased. When the capacity of the power battery 3 needs to be expanded, it can be made less restricted by the space reduction caused by the addition of components. At the same time, sufficient trunk space is reserved to improve the customer's travel experience. Moreover, this solution facilitates the cooperation of other surrounding components, reduces the distribution of high-voltage wiring harnesses, improves the safety of the whole vehicle, and enables the power unit layout of the range-extended electric vehicle to reach a high level of technology.

[0055] Furthermore, compared to existing technologies, the first and second drive units designed in this embodiment not only consider the integration of wiring harnesses and components, but also the rational distribution of parts, the ease of operation of connectors, and temperature field distribution. This ensures that the wiring harnesses and components have a high degree of integration, reduce the number of wiring harnesses, and facilitate the operation of wiring harness connectors by personnel during installation and maintenance, while maintaining a balanced temperature field distribution. Overall, this embodiment comprehensively addresses multi-dimensional issues related to component layout, manufacturing processes, safety, and temperature field during vehicle development.

[0056] Specifically, the first drive unit in this embodiment includes a rear drive motor 4 and a first motor controller. The first motor controller is electrically connected to the rear drive motor 4 and is used to control the rear drive motor 4. The aforementioned first motor controller, battery pack BMS, on-board charger, DC / DC converter, and core electronic control unit are all integrated on the rear drive motor 4. A first power distribution unit 14 is connected to the rear drive motor 4. The first power distribution unit 14 is electrically connected to the power battery 3, the first motor controller, and the battery pack BMS. The battery pack BMS is electrically connected to the power battery 3 and is used to control the power battery 3. The first power distribution unit 14 is also electrically connected to the on-board charger and the DC / DC converter. The other end of the on-board charger and the DC / DC converter are both electrically connected to the slow charging port in the charging port 13. The first power distribution unit 14 is also electrically connected to the core electronic control unit to supply power to the core electronic control unit, which is used to control the entire vehicle.

[0057] Furthermore, in this embodiment, the power battery 3 is also directly electrically connected to the fast charging port in the charging port 13, allowing the power battery 3 to be charged directly through the fast charging port, thus achieving fast charging functionality. Therefore, when the fast charging port is connected to a fast charging station, it can provide fast charging for the power battery 3. Compared to existing technologies, fast charging in this embodiment is achieved through a direct connection between the power battery 3 and the fast charging port, without integrating them, reducing the number of wiring harnesses and connectors used.

[0058] like Figure 2 and Figure 3As shown, the multi-in-one integrated rear-drive motor 4 in this embodiment integrates a reducer, a first motor controller, an on-board charger (OBC), a DC / DC converter, a first power distribution unit (PDU), a battery pack management system (BMS), and a core electronic control unit (VCU). As the "heart" of the electric vehicle, its main function is to convert the electrical energy stored in the power battery 3 into kinetic energy to power the electric vehicle. The power battery 3, as the main power reserve of the electric vehicle, drives the multi-in-one integrated rear-drive motor 4 through the rear-drive motor 4-battery pack high-voltage line 10. Specifically, the power battery 3 is connected to the first power distribution unit 14 through the rear-drive motor 4-battery pack high-voltage line 10. The first power distribution unit 14, connected to the first motor controller, drives the rear-drive motor 4, thereby providing power to the electric vehicle.

[0059] In this embodiment, the first power distribution unit 14 is provided with various interfaces such as the first power distribution unit high-voltage line interface 16, the first battery pack high-voltage line interface 17, the 12V wiring harness interface 18, the vehicle low-voltage wiring harness interface 19, and the slow-charging high-voltage line interface 20, which facilitates the access of external devices.

[0060] The capacity of the power battery 3 directly affects the driving range of the electric vehicle. Therefore, in this embodiment, the battery pack BMS is integrated into the first drive unit, and the rear drive motor 4 integrates the battery pack BMS, which can increase the layout space and increase the capacity of the power battery 3, which is beneficial to improving the driving range of the whole vehicle.

[0061] In addition, the first power distribution unit 14 is also electrically connected to the core electronic control unit to supply power to the core electronic control unit. The rear drive motor 4 integrates the core electronic control unit VCU, which can increase the layout space of the cabin and help improve the overall vehicle comfort and trunk space.

[0062] In this embodiment, the first power distribution unit 14 is also electrically connected to the on-board charger and the DC / DC converter, respectively. The other end of both the on-board charger and the DC / DC converter is electrically connected to the slow charging port in the charging port 13, thereby enabling the charging of the power battery 3 through the on-board charger and the DC / DC converter. When the slow charging port is connected to a slow charging pile, the second power distribution unit 15 can provide slow charging functionality for the power battery 3.

[0063] The rear drive motor 4 integrates the on-board charger (OBC), DC / DC converter, and first power distribution unit (PDU), reducing the CDU layout and increasing the rear battery space, thus improving overall vehicle NVH. This embodiment's all-in-one integrated rear drive motor 4 has high scalability, meeting the company's multi-platform and cross-platform usage requirements, and conforming to the company's platformization and generalization requirements.

[0064] As a further technical solution, such as Figure 4 As shown, the second drive unit in this embodiment includes an engine 1, a generator 2, and a second motor controller. The engine 1 provides power to the generator 2. A second power distribution unit 15 is connected to the generator 2. The second power distribution unit 15 is electrically connected to the power battery 3 and the second motor controller. The second motor controller is electrically connected to the generator 2 to control the generator 2. When the power battery 3 has insufficient remaining power and cannot be charged in time, but continued driving is required, the generator 2 can output electrical energy to replenish the remaining power of the power battery 3 without affecting continued driving.

[0065] The second power distribution unit 15 in this embodiment is provided with multiple interfaces such as PTC high-voltage line interface 21, EAC high-voltage line interface 22, and second battery pack high-voltage line interface 23, which facilitates the connection of various external devices.

[0066] In this embodiment, the engine 1 and the multi-functional generator 2 together form a range extender. When the power battery 3 has low power, the range extender will start automatically and provide power to the electric drive system through the generator 2-battery pack high voltage line 8. At the same time, it can also charge the battery pack to extend the driving range.

[0067] In this embodiment, the second power distribution unit 15 is also electrically connected to the vehicle heater 6 and the electric air compressor 5 respectively. By adopting this scheme, the power energy of the power battery 3 can be supplied to the vehicle heater 6 and the electric air compressor 5 through the second power distribution unit 15, so as to provide power to the vehicle heater 6 and the electric air compressor 5.

[0068] Furthermore, the electric air compressor 5 is the heart of the automotive air conditioning refrigeration system, playing the role of compressing and transporting refrigerant vapor. The power battery 3 supplies power to the electric air compressor 5 through the high-voltage line 8 of the generator 2-battery pack, the second power distribution unit 15 (PDU) on the multi-function generator 2, and the high-voltage line 7 of the generator 2-electric air compressor 5, enabling it to operate normally.

[0069] The on-board heater 6 (PTC) is a ceramic heater element used in automobiles to start vehicles in low-temperature conditions. It is primarily used to preheat the engine 1 in winter and to provide heating for the passenger compartment and battery pack. The power battery 3 supplies power to the on-board heater 6 (PTC) via the alternator 2-battery pack high-voltage line 8, the second power distribution unit 15 (PDU) on the multi-function alternator 2, and the alternator 2-PTC high-voltage line 9, enabling it to operate normally.

[0070] In this embodiment, the generator 2 is also integrated with an engine electronic controller (ECU). The ECU is electrically connected to the second power distribution unit 15. By integrating the ECU, the front compartment space can be increased, and the low-voltage wiring harness of the entire vehicle can be arranged more compactly and aesthetically. The integrated multi-functional generator 2 in this embodiment not only reduces the size of components and lowers maintenance costs, but also improves the overall vehicle performance.

[0071] It can be understood that, such as Figure 1 As shown, this embodiment also includes a generator-electric air compressor high-voltage line 7, a generator-battery pack high-voltage line 8, a generator-PTC high-voltage line 9, a rear drive motor-battery pack high-voltage line 10, a charging port-battery pack high-voltage line 11, and a charging port-rear drive motor high-voltage line 12. The generator-electric air compressor high-voltage line 7 connects the second power distribution unit 15 and the electric air compressor 5; the generator-battery pack high-voltage line 8 connects the second power distribution unit 15 and the power battery 3; the generator-PTC high-voltage line 9 connects the second power distribution unit 15 and the vehicle heater 6; the rear drive motor-battery pack high-voltage line 10 connects the first power distribution unit 14 and the power battery 3; the charging port-battery pack high-voltage line 11 connects the power battery 3 and the fast charging port in the charging port 13; and the charging port-rear drive motor high-voltage line 12 connects the first power distribution unit 14 and the slow charging port in the charging port 13.

[0072] In this embodiment, the high-voltage system, including the engine 1, multi-functional generator 2, battery pack, multi-functional integrated rear-drive motor 4, electric air compressor 5, on-board heater 6, and charging port 13, is connected via high-voltage lines 7 (multi-functional generator-electric air compressor), 8 (multi-functional generator-battery pack), 9 (multi-functional generator-PTC), 10 (multi-functional integrated rear-drive motor-battery pack), 11 (charging port-battery pack high-voltage line, fast charging cable), and 13 (charging port-multi-functional integrated rear-drive motor 4 high-voltage line, slow charging cable). In this embodiment, "high voltage" refers to the voltage required for the vehicle's low-voltage load. High-voltage and low-voltage loads are conventional terms in the vehicle field and therefore are not explained in detail.

[0073] In this embodiment, both the first power distribution unit 14 and the second power distribution unit 15 have a splitting function and serve to connect circuits. In other words, when the first power distribution unit 14 is connected to a certain device, it means that the device can be connected to the power battery 3; when the second power distribution unit is connected to a certain device, it means that the device can be connected to at least one of the power battery 3 and the generator 2.

[0074] This embodiment features a high degree of integration of the powertrain, high-voltage components, and low-voltage components. This integration reduces component size and the number of parts, lowers maintenance costs, and improves overall vehicle performance. By highly integrating the powertrain, high-voltage components, and low-voltage components, the vehicle's front compartment and cabin space can be increased, addressing multi-dimensional issues related to layout, manufacturing processes, safety, and temperature control during vehicle development. This shortens the vehicle development cycle, reduces overall vehicle costs, and enhances the vehicle's market competitiveness.

[0075] Example 2:

[0076] Based on the same technical concept, this embodiment provides a range-extended electric vehicle, which includes the integrated power control system as described in Embodiment 1.

[0077] This approach allows for the integrated design of the range-extended electric vehicle powertrain system, optimizes the layout of various components, reduces the number of wiring harnesses in the vehicle, and minimizes their impact on the interior space of the new energy electric vehicle. This not only reduces the difficulty of designing the overall vehicle layout and dimensions but also improves the stability of connections between components.

[0078] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0079] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An integrated power control system, characterized in that, The device includes a power battery and a first drive unit electrically connected to the power battery. The first drive unit includes a rear drive motor, a first motor controller, and a battery pack BMS. A first power distribution unit is connected to the rear drive motor. The first power distribution unit is electrically connected to the power battery, the first motor controller, and the battery pack BMS. The first motor controller is electrically connected to the rear drive motor, and the battery pack BMS is electrically connected to the power battery. The first drive unit also includes an on-board charger and a DC / DC converter, both of which are electrically connected to the first power distribution unit and the slow charging port in the charging port. The power battery is also directly electrically connected to the fast charging port in the charging port; The first drive unit also includes a core electronic control unit, which is electrically connected to the first power distribution unit; The first motor controller, battery pack BMS, on-board charger, DC / DC converter and core electronic control unit are all located on the rear drive motor.

2. The integrated power control system according to claim 1, characterized in that, The power battery is also electrically connected to a second drive unit, which includes an engine, a generator, and a second motor controller. The engine is used to provide power for the generator to generate electricity. A second power distribution unit is connected to the generator. The second power distribution unit is electrically connected to the power battery and the second motor controller, respectively. The second motor controller is electrically connected to the generator.

3. The integrated power control system according to claim 2, characterized in that, The second power distribution unit is also electrically connected to the vehicle heater and the electric air compressor, respectively.

4. The integrated power control system according to claim 2, characterized in that, The generator is also integrated with an engine electronic controller (ECU), which is electrically connected to the second power distribution unit.

5. The integrated power control system according to claim 3, characterized in that, It also includes a generator-electric air compressor high-voltage line, a generator-battery pack high-voltage line, a generator-PTC high-voltage line, a rear drive motor-battery pack high-voltage line, a charging port-battery pack high-voltage line, and a charging port-rear drive motor high-voltage line; the generator-electric air compressor high-voltage line connects the second power distribution unit and the electric air compressor, the generator-battery pack high-voltage line connects the second power distribution unit and the power battery, the generator-PTC high-voltage line connects the second power distribution unit and the vehicle heater, the rear drive motor-battery pack high-voltage line connects the first power distribution unit and the power battery, the charging port-battery pack high-voltage line connects the power battery and the fast charging port in the charging port, and the charging port-rear drive motor high-voltage line connects the first power distribution unit and the slow charging port in the charging port.

6. A range-extended electric vehicle, characterized in that, The range-extended electric vehicle includes the integrated power control system as described in any one of claims 1-5.

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