Hybrid Domain Control System, Method and Hybrid Electric Vehicle

Abstract

The present application discloses a hybrid domain control system, method and hybrid electric vehicle. The system includes a drive motor control module, a generator control module, an engine control module, a clutch control module and a hybrid domain controller. The drive motor control module is communicatively connected to a drive motor; the generator control module is communicatively connected to a generator; the engine control module is communicatively connected to an engine; the clutch control module is communicatively connected to a clutch; the hybrid domain controller is communicatively connected to the drive motor control module, the generator control module, the engine control module and the clutch control module, and is configured to control the drive motor, the generator, the engine and the clutch to execute different operation strategies according to the acquired vehicle driving conditions. The hybrid domain control system provided by the present application realizes the coordinated control of multiple power sources with low latency and high integration in the hybrid architecture by establishing a communication connection between multiple power sources and the domain controller.

Description

Technical Field

[0001] The present application relates to the technical field of hybrid electric vehicles, and specifically to a hybrid domain control system, method, and hybrid electric vehicle. Background Art

[0002] In recent years, hybrid electric vehicles have become the focus of research and development in the automotive industry due to their advantages such as energy conservation, low emissions, long driving range, and good power performance. Plug-in hybrid electric vehicles are an important development direction among them, generally with a P1+P3 two-wheel drive hybrid architecture and a P1+P3+P4 four-wheel drive hybrid architecture, and usually include an engine and its controller EMS, a generator and its controller GCU, a drive motor and its controller MCU, a clutch, and other components. With the innovation of industrial technology and the need for enterprises to reduce costs and increase efficiency, the overall structure of the hybrid power system gradually adopts an integrated design, and the hardware of the controller is gradually integrated, transforming into a high-performance hybrid domain controller, which not only reduces the occupation of vehicle body space but also reduces the complexity of the wiring harness between controllers and the development cost.

[0003] Although the hardware of the existing hybrid power system is gradually integrated, there are still problems such as decentralized control of each power source and high dependence on the coordinated work of the vehicle controller, resulting in the following prominent problems in this control strategy architecture: on the one hand, since each power source controller communicates with the vehicle controller through CAN bus message signals, and the CAN network signal messages have different time cycles when transmitted on the bus, the real-time performance of each controller receiving the messages sent by the vehicle controller is much lower than the signal transmission inside the controller. This communication delay will cause the delay of each power source control, reducing the real-time performance and smoothness of the hybrid domain system control; on the other hand, due to the decentralized control software of each power source, it not only increases the development cost and maintenance cost but also makes it difficult to achieve real-time and precise coordinated control between multiple power sources. In addition, the existing publicly disclosed hybrid domain control strategies focus more on the energy management of the vehicle and do not focus on the realization of the functions of the hybrid domain controller itself, which not only increases the complexity of hybrid domain control but also is not suitable for the implementation of the P1+P3 and P1+P3+P4 plug-in hybrid architectures.

[0004] The prior art discloses a power domain controller system and a hybrid electric vehicle, which includes an engine control module and a hybrid vehicle control module, and decouples the parts closely combined with its own hybrid configuration in the traditional respective links according to the different configurations of the P2 architecture and the P1+P3 architecture, and independently forms a peripheral control module. The main modules on the torque link composed of the boundary limit module, torque intervention module, torque distribution module, engine start-stop control module, and clutch control module arbitrate the peripheral control module as the final output, compatible with the P1+P3 and P2 hybrid architectures.

[0005] However, this system does not include a drive motor, a generator, and a clutch control module. The transmission of each motor drive signal still passes through the CAN bus. In fact, it is still a domain control system with software decentralized control, which has problems of low communication efficiency and control delay, and does not reduce the development workload and maintenance cost. In addition, this domain control system includes a torque distribution function for parsing the driver's intention, which increases the software complexity, but does not consider the torque distribution of the P4 motor and is not applicable to the P1+P3+P4 hybrid architecture system.

[0006] The prior art discloses a power domain control system for a parallel hybrid vehicle, including an engine control module, a battery control module, a motor control module, a mechanical automatic transmission control module, an energy management module, and a mode switching coordination control module. By integrating a hybrid controller and a transmission controller, it aims to combine the energy management strategy in the hybrid controller with the shift strategy in the transmission controller in real time.

[0007] However, this domain control system is only applicable to the power split hybrid architecture, and its control strategy cannot be applied to the P1+P3 two-wheel drive hybrid architecture and the P1+P3+P4 four-wheel drive hybrid architecture. Summary of the Invention

[0008] The purpose of this application is to overcome the deficiencies of the above background technology and provide a hybrid domain control system, method, and hybrid vehicle.

[0009] In the first aspect, a hybrid domain control system is provided, including:

[0010] A drive motor control module communicatively connected to the drive motor;

[0011] A generator control module communicatively connected to the generator;

[0012] A clutch control module communicatively connected to the clutch;

[0013] An engine control module communicatively connected to the engine;

[0014] A hybrid domain controller communicatively connected to the drive motor control module, the generator control module, the engine control module, and the clutch control module, and configured to control the drive motor, the generator, the engine, and the clutch to execute different operating strategies according to the acquired vehicle driving conditions.

[0015] According to the first aspect, in the first implementation manner of the first aspect, the drive motor is a single drive motor in the P1+P3 hybrid architecture or two drive motors in the P1+P3+P4 hybrid architecture.

[0016] According to the first implementation manner of the first aspect, in the second implementation manner of the first aspect, the hybrid domain controller is communicatively connected to the drive motor control module, the generator control module, the engine control module, and the clutch control module through an in-vehicle internal communication connection line, and the hybrid domain controller obtains the driving conditions of the vehicle through the CAN bus.

[0017] According to the first aspect, in the third implementation manner of the first aspect, the hybrid domain controller is communicatively connected to the drive motor control module, the generator control module, the engine control module, and the clutch control module, and is configured to, according to the total drive torque request, the power generation power request instruction sent by the vehicle controller received, the power battery power and the vehicle speed obtained through the CAN bus, and based on the system economy and power performance cost function, query the calibration table to obtain the torque distribution strategies of each power source;

[0018] According to the obtained torque distribution strategies of each power source, send torque request instructions, speed request instructions, power generation power request instructions, and clutch engagement or disengagement instructions to the drive motor control module, the generator control module, the engine control module, and the clutch control module, and control the drive motor, the generator, the engine, and the clutch to execute different operation strategies.

[0019] According to the first aspect, in the fourth implementation manner of the first aspect, the drive motor control module, the generator control module, the engine control module, and the clutch control module are communicatively connected pairwise.

[0020] According to the first aspect, in the fifth implementation manner of the first aspect, a fault protection and safety monitoring module is further included, which is communicatively connected to the hybrid domain controller and is configured to monitor the operation state of the entire hybrid domain in real time and obtain the fault diagnosis results and fault handling strategies of the entire hybrid domain.

[0021] According to the first aspect, in the sixth implementation manner of the first aspect, the hybrid domain controller is further configured to send the actual total drive torque, the actual power generation power, the maximum allowable power generation power, and the maximum allowable drive torque of the vehicle to the vehicle VCU.

[0022] In a second aspect, the present application further provides a hybrid domain control method, including the following steps:

[0023] Obtain the driving conditions of the vehicle;

[0024] Establish a communication connection between the hybrid domain controller and multiple power sources, where the multiple power sources include a drive motor, a generator, an engine, and a clutch;

[0025] The vehicle driving condition is obtained through the hybrid domain controller, and according to the obtained vehicle driving condition, multiple power sources are controlled to execute different operation strategies.

[0026] According to the second aspect, in the first implementation manner of the second aspect, the following steps are further included:

[0027] Monitor the operation state of the entire hybrid domain in real time;

[0028] According to the operation state of the entire hybrid domain monitored in real time, obtain the fault diagnosis result and fault handling strategy of the entire hybrid domain.

[0029] In the third aspect, the present application provides a hybrid electric vehicle, including the hybrid domain control system as described above.

[0030] Compared with the prior art, the advantages of the present application are as follows:

[0031] The present application proposes a hybrid domain control system, which is compatible with P1+P3 and P1+P3+P4 hybrid architectures, and realizes complementary and coordinated control of multiple power sources in the hybrid domain;

[0032] The hybrid domain control system provided by the present application realizes highly integrated control software for each power source. It not only solves the problems of high development cost, large workload, and high maintenance cost caused by scattered control software, but also realizes internal communication between the multi-mode hybrid domain control module and each power source. Each power source is integrated and controlled through the hybrid domain controller and the corresponding control module, without relying on the vehicle controller for coordinated work, solving the communication delay and control delay problems caused by the decentralized control of the vehicle controller, with a faster response speed and smoother control. Description of the Drawings

[0033] Figure 1 It is a functional module block diagram of the hybrid domain control system provided by the embodiment of the present application;

[0034] Figure 2 It is an information interaction diagram between the vehicle controller and the hybrid domain controller of the hybrid domain control system provided by the embodiment of the present application;

[0035] Figure 3 It is a hybrid domain control strategy architecture diagram provided by the embodiment of the present application;

[0036] Figure 4 It is a multi-power source torque distribution diagram of the hybrid domain controller of the hybrid domain control system provided by the embodiment of the present application;

[0037] Figure 5 It is an information processing diagram of the hybrid domain controller of the hybrid domain control system provided by the embodiment of the present application. Detailed Embodiments

[0038] Reference will now be made in detail to specific embodiments of the present application, examples of which are illustrated in the accompanying drawings. Although the present application will be described in conjunction with specific embodiments, it will be understood that it is not intended to limit the present application to the described embodiments. On the contrary, it is intended to cover modifications, variations, and equivalents included within the spirit and scope of the present application as defined by the appended claims. It should be noted that the method steps described herein can all be implemented by any functional block or functional arrangement, and any functional block or functional arrangement can be implemented as a physical entity or a logical entity, or a combination of both.

[0039] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] Note: The examples to be introduced next are only specific examples and do not limit the embodiments of the present application to the following specific steps, numerical values, conditions, data, sequences, etc. Those skilled in the art can use the concept of the present application described in this specification to construct more embodiments not mentioned in this specification by reading this specification.

[0041] Please refer to Figure 1 An embodiment of the present application provides a hybrid domain control system, including a drive motor control module, a generator control module, a clutch control module, an engine control module, and a hybrid domain controller. The drive motor control module is communicatively connected to a drive motor, and the drive motor is used to drive the vehicle to travel. In particular, when a generator series power generation failure is supported, it is used to drag the engine to start and charge the power battery to improve the emergency endurance of the whole vehicle. The drive motor control module receives instructions from the hybrid domain controller and outputs a control duty cycle signal to control the operation of the drive motor. The generator control module is communicatively connected to a generator, and the generator is used to generate electricity to drag the engine to start. The generator control module receives the quality from the hybrid domain controller and outputs a control duty cycle signal to control the start, stop, or power generation power of the generator. The engine control module is communicatively connected to an engine, and the engine is used to receive instructions from the hybrid domain controller and output instructions to control the start, stop, intake, fuel injection, ignition, etc. of the engine. When starting, it drags the generator to generate electricity and, according to the needs of the operating conditions, controls the clutch to engage and drive the vehicle simultaneously with the drive motor as a power source, or directly drive the vehicle to run. The clutch control module is communicatively connected to a clutch and a cooling and lubrication motor. The clutch control module is used to receive instructions from the hybrid domain controller and output a control duty cycle signal to control the engagement or disengagement of the clutch to achieve different vehicle power drive modes. The hybrid domain controller is communicatively connected to the drive motor control module, the generator control module, the engine control module, and the clutch control module, and is used to control the drive motor, generator, engine, and clutch to execute different operating strategies according to the obtained vehicle driving conditions.

[0042] The hybrid domain control system provided by this application realizes a low-latency, precise, and highly integrated communication connection between multiple power sources and the domain controller by establishing a communication connection between the multiple power sources and the domain controller and obtaining the vehicle driving conditions through the domain controller. Data processing is performed through domain control to achieve coordinated control of the outputs of multiple power sources under different vehicle driving modes.

[0043] In one embodiment, the drive motor is a single drive motor in the P1+P3 hybrid architecture, where P1 is a generator and P3 is a drive motor; the drive motor can also be implemented as two drive motors in the P1+P3+P4 hybrid architecture, where P1 is a generator, P3 is the first drive motor, and P4 is the second drive motor. The hybrid domain control system provided by this application is applicable to the P1+P3 hybrid architecture and the P1+P3+P4 hybrid architecture, realizes coordinated control of multiple power sources, and has the advantages of low latency and high integration.

[0044] In one embodiment, the hybrid domain controller is communicatively connected to the drive motor control module, the generator control module, the engine control module, and the clutch control module through in-vehicle internal communication connection lines, and the hybrid domain controller obtains the vehicle driving conditions through the CAN bus. Signal variables in programs such as the hybrid domain controller, drive motor control module, generator control module, clutch control module, engine control module, and fault protection and safety monitoring module are all internal variables and do not need to be transmitted through the CAN bus. Each module can read and call them in real time, featuring low-latency and precise transmission of information communication. The hybrid domain controller can receive the required signals through the CAN bus and send the necessary signals to the CAN bus.

[0045] In one embodiment, the hybrid domain controller is communicatively connected to the drive motor control module, the generator control module, the engine control module, and the clutch control module, and is used to query the calibration table according to the total drive torque request, power generation power request instruction sent by the vehicle controller received, the power battery power and vehicle speed obtained through the CAN bus, based on the system economy and power performance cost function, to obtain the torque distribution strategies of each power source; according to the obtained torque distribution strategies of each power source, send torque request instructions, speed request instructions, power generation power request instructions, and clutch engagement or disengagement instructions to the drive motor control module, the generator control module, the engine control module, and the clutch control module to control the drive motor, generator, engine, and clutch to execute different operating strategies.

[0046] In a more specific embodiment, when the obtained vehicle speed is less than the vehicle speed threshold, the hybrid domain controller controls the drive motor as the power source for the output torque of vehicle driving; when the obtained vehicle speed is greater than the vehicle speed threshold, the hybrid domain controller controls the generator to generate electricity, and uses the combined clutch to make the engine and the drive motor serve as the power source for the output torque of vehicle driving. By obtaining the vehicle driving conditions through the domain controller, the coordinated control of multiple power sources is realized.

[0047] In one embodiment, the drive motor control module, the generator control module, the engine control module, and the clutch control module are pairwise interconnected and communicate with each other to send instructions such as the operating mode, requested torque, and requested speed to each control module, control the operation of the drive motor, generator, and clutch, and control the start and stop of the engine, so that the hybrid domain system operates in multiple operating modes such as pure electric drive, series drive, parallel drive, and direct engine drive, in order to achieve the control of power output and maximum energy utilization.

[0048] In one embodiment, it further includes a fault protection and safety monitoring module, which is communicatively connected to the hybrid domain controller and is used to monitor the operating state of the entire hybrid domain in real time and obtain the fault diagnosis results and fault handling strategies of the entire hybrid domain.

[0049] In one embodiment, the hybrid domain controller is further used to send the actual total drive torque, actual power generation power, maximum allowable power generation power, and maximum allowable drive torque of the vehicle to the vehicle VCU.

[0050] In one embodiment, as Figure 2 shown, the hybrid domain control strategy system is specifically implemented as follows: the hybrid domain controller receives instructions such as the total drive torque request and power generation power request sent by the vehicle controller VCU, and there is no need to perform driver intention parsing and vehicle energy balance control; its multi-mode hybrid domain control module will match a precise multi-power coordinated control scheme, and interact with the internal drive motor control module, generator control module, clutch control module, and engine control module in real time, send instructions such as the operating mode, requested torque, and requested speed to each control module, control the operation of the drive motor, generator, and clutch, and control the start and stop of the engine, so that the hybrid domain system operates in multiple operating modes such as pure electric drive, series drive, parallel drive, and direct engine drive, in order to achieve the control of power output and maximum energy utilization. At the same time, the hybrid domain controller sends signals and operating parameters such as the actual total drive torque, actual power generation power, maximum allowable power generation power, and maximum allowable drive torque to the vehicle controller VCU via the CAN bus. The signal flow diagram is shown in the following figure, including but not limited to the following signals.

[0051] In one embodiment, please refer to Figure 3, this application also provides a hybrid domain control strategy architecture, which mainly consists of an application strategy layer, a basic software layer, and a hardware signal layer. Among them, the hardware signal layer mainly realizes the acquisition of various sensor signals, the input and output of IO signals, the reception and transmission of CAN signals, etc.; the basic software layer mainly provides system operation services, data storage services, communication protocol services, complex drivers, etc.; the application strategy layer consists of a multi-mode hybrid domain control module, a drive motor control module, a generator control module, a clutch control module, an engine control module, and a fault protection and safety monitoring module.

[0052] In one embodiment, as Figure 4 shown, the multi-power source torque distribution is as follows: The multi-mode hybrid domain control module in the application strategy layer, according to the total drive torque request and power generation power request instructions sent by the vehicle controller received, as well as necessary signals such as the power battery power and vehicle speed obtained through the CAN bus, queries the calibration table based on the system economy and power performance cost function, completes the torque distribution of each power source, and transfers the torque request and speed request to the drive motor control module, generator control module, and engine control module through internal signal transmission. The dotted box in the figure is an optional part.

[0053] In one embodiment, as Figure 5 shown, the hybrid domain mode control is realized as follows: According to the torque distribution of each power source, determine the system operation mode, and send operation status instructions to modules such as the drive motor control module, generator control module, clutch control module, and engine control module. The dotted box is an optional part.

[0054] In this application, the multi-mode hybrid domain control module is the core module for implementing the hybrid domain control strategy, and can realize the coordinated control of multiple power sources in multiple modes of the drive motor, generator, clutch motor, and engine;

[0055] The drive motor control module implements the drive motor control algorithm, including a single drive motor in the P1+P3 hybrid architecture, and can be compatible with two drive motors in the P1+P3+P4 hybrid architecture, receives instructions from the multi-mode hybrid domain control module, and outputs a control duty cycle signal;

[0056] The generator control module implements the generator control algorithm, receives instructions from the multi-mode hybrid domain control module, and outputs a control duty cycle signal;

[0057] The clutch control module implements the control algorithms for the clutch motor and the cooling and lubrication motor, receives instructions from the multi-mode hybrid domain control module, and outputs a control duty cycle signal;

[0058] The engine control module implements the engine control algorithm, receives instructions from the multi-mode hybrid domain control module, and outputs instructions for controlling the engine start and stop, intake, fuel injection, ignition, etc.;

[0059] The fault protection and safety monitoring module is responsible for real-time monitoring of the operating status of the entire hybrid domain, and conducts timely fault diagnosis and fault handling.

[0060] The signal variables in programs such as the multi-mode hybrid domain control module, drive motor control module, generator control module, clutch control module, engine control module, and fault protection and safety monitoring module are all internal variables, and do not need to be transmitted through the CAN bus. Each module can read and call them in real time. The multi-mode hybrid controller can receive the required signals through the CAN bus and send the necessary signals to the CAN bus.

[0061] Based on the same inventive concept, the present application also provides a hybrid domain control method, including the following steps:

[0062] Step S1, obtain the vehicle driving condition;

[0063] Step S2, establish a communication connection between the hybrid domain controller and multiple power sources, where the multiple power sources include a drive motor, a generator, an engine, and a clutch;

[0064] Step S3, obtain the vehicle driving condition through the hybrid domain controller, and control the multiple power sources to execute different operation strategies according to the obtained vehicle driving condition.

[0065] Based on the same inventive concept, the present application also provides a hybrid electric vehicle, including the hybrid domain control system as described above. The hybrid electric vehicle provided by the present application, due to adopting the hybrid domain control system, realizes the internal communication between the hybrid domain control module and each power source, solves the problems of communication delay and control delay caused by the decentralized control of the vehicle controller, has a faster response speed and smoother control.

[0066] In an embodiment, the hybrid domain control method provided by the present application further includes the following steps:

[0067] Step S1, obtain the vehicle driving condition;

[0068] Step S2, establish a communication connection between the hybrid domain controller and multiple power sources, where the multiple power sources include a drive motor, a generator, an engine, and a clutch;

[0069] Step S3, obtain the vehicle driving condition through the hybrid domain controller, and control the multiple power sources to execute different operation strategies according to the obtained vehicle driving condition.

[0070] Step S41, real-time monitor the operating status of the entire hybrid domain;

[0071] Step S42, obtain the fault diagnosis result and fault handling strategy of the entire hybrid domain according to the real-time monitored operating status of the entire hybrid domain.

[0072] Based on the same inventive concept, the present application also provides a hybrid electric vehicle, including the hybrid domain control system as described above. Since the hybrid domain control system is adopted in the hybrid electric vehicle provided by the present application, internal communication between the hybrid domain control module and each power source is realized, the problems of communication delay and control delay caused by decentralized control of the vehicle controller are solved, and a fault diagnosis function is provided, with a faster response speed and smoother control.

[0073] Based on the same inventive concept, an embodiment of the present application also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, all or part of the method steps of the above method are realized.

[0074] All or part of the processes in the above method of the present application can also be completed by instructing relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor, the steps of the above method embodiments can be realized. Among them, the computer program includes computer program code, and the computer program code can be in the form of source code, object code, executable file or some intermediate form, etc. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disc, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electrical carrier signal, telecommunication signal, and software distribution medium, etc. It should be noted that the content included in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable medium does not include electrical carrier signals and telecommunication signals.

[0075] Based on the same inventive concept, an embodiment of the present application also provides an electronic device, including a memory and a processor. A computer program running on the processor is stored on the memory. When the processor executes the computer program, all or part of the method steps of the above method are realized.

[0076] The so-called processor may be a Central Processing Unit (CPU), or may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate Arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The processor is the control center of the computer device, and connects various parts of the entire computer device through various interfaces and lines.

[0077] The memory can be used to store computer programs and / or modules. The processor realizes various functions of the computer device by running or executing the computer programs and / or modules stored in the memory, and by calling the data stored in the memory. The memory may mainly include a program storage area and a data storage area. Among them, the program storage area may store an operating system and application programs required for at least one function (such as a sound playback function, an image playback function, etc.); the data storage area may store data created according to the use of the mobile phone (such as audio data, video data, etc.). In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as a hard disk, memory, plug-in hard disk, SmartMedia Card (SMC), Secure Digital (SD) card, Flash Card, at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage devices.

[0078] Those skilled in the art should understand that the embodiments of the present application may be provided as a method, system, server, or computer program product. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) containing computer-usable program code.

[0079] This application is described with reference to the flowcharts and / or block diagrams of methods, apparatus (systems), servers, and computer program products according to embodiments of the present application. It should be understood that each flow and / or block in the flowchart and / or block diagram, and the combination of flows and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing device to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing device generate means for implementing the functions specified in the Figure 1 one or more flows and / or blocks Figure 1 one or more blocks.

[0080] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the computer-readable memory generate a manufactured article including instruction means that implement the functions specified in the Figure 1 one or more flows and / or blocks Figure 1 one or more blocks.

[0081] These computer program instructions can also be loaded onto a computer or other programmable data processing device, such that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in the Figure 1 one or more flows and / or blocks Figure 1 one or more blocks.

[0082] Obviously, those skilled in the art can make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these changes and modifications.

Claims

1. A hybrid domain control system, characterized in that, Comprising: A drive motor control module, communicatively connected to a drive motor; A generator control module, communicatively connected to a generator; An engine control module, communicatively connected to an engine; A clutch control module, communicatively connected to a clutch; A hybrid domain controller, communicatively connected to the drive motor control module, the generator control module, the engine control module, and the clutch control module, and configured to control the drive motor, the generator, the engine, and the clutch to execute different operating strategies according to the acquired vehicle driving conditions; The drive motor is a single drive motor in a P1+P3 hybrid architecture or two drive motors in a P1+P3+P4 hybrid architecture; wherein, P1 is a generator, P3 is a first drive motor, and P4 is a second drive motor; The hybrid domain controller is communicatively connected to the drive motor control module, the generator control module, the engine control module, and the clutch control module, and is configured to, according to the total drive torque request, the power generation power request instruction sent by the vehicle controller, the power battery power and the vehicle speed acquired through the CAN bus, query the calibration table based on the system economy and power performance cost function, obtain the torque distribution strategies of each power source, and send torque request instructions, speed request instructions, power generation power request instructions, and clutch engagement or disengagement instructions to the drive motor control module, the generator control module, the engine control module, and the clutch control module to control the drive motor, the generator, the engine, and the clutch to execute different operating strategies; The drive motor control module, the generator control module, the engine control module, and the clutch control module are communicatively connected to each other pairwise; Further comprising a fault protection and safety monitoring module, communicatively connected to the hybrid domain controller, and configured to monitor the operating state of the entire hybrid domain in real time and obtain the fault diagnosis results and fault handling strategies of the entire hybrid domain; The hybrid domain controller is further configured to send the actual total drive torque, the actual power generation power, the maximum allowable power generation power, and the maximum allowable drive torque of the vehicle to the vehicle VCU.

2. The hybrid domain control system according to claim 1, wherein The hybrid domain controller is communicatively connected to the drive motor control module, the generator control module, the engine control module, and the clutch control module through an in-vehicle internal communication connection line, and the hybrid domain controller acquires the vehicle driving conditions through the CAN bus.

3. A hybrid domain control method for the hybrid domain control system as claimed in claim 1, characterized in that, Comprising the following steps: Acquiring vehicle driving conditions; Establishing a communication connection between the hybrid domain controller and multiple power sources, where the multiple power sources include a drive motor, a generator, an engine, and a clutch; Acquiring vehicle driving conditions through the hybrid domain controller, and controlling the multiple power sources to execute different operating strategies according to the acquired vehicle driving conditions.

4. The hybrid domain control method according to claim 3, wherein Further comprising the following steps: Monitoring the operating state of the entire hybrid domain in real time; Obtaining the fault diagnosis results and fault handling strategies of the entire hybrid domain according to the real-time monitored operating state of the entire hybrid domain.

5. A hybrid vehicle, characterized in that, Comprising the hybrid domain control system according to claim 1 or 2.

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