Parallel and series hybrid vehicle control method, vehicle controller and system

Abstract

The present invention relates to a series-parallel control method for a hybrid vehicle, a vehicle controller and a system. The method includes the following steps: when it is detected that the vehicle meets the preset conditions for entering the parallel mode, controlling the vehicle to enter the parallel drive mode; controlling the engine torque to be adjusted to the engine target torque, controlling the engine speed to be adjusted to the engine target speed, and controlling the engine flywheel end torque to be adjusted to the target flywheel end torque; when it is detected that the engine flywheel end torque is adjusted to the preset torque, controlling the clutch to engage and making the front end of the clutch torque-free; obtaining the clutch engagement state, and when it is detected that the clutch engagement state is completed, performing a mode switch on the operating mode of the generator and transferring the torque of the generator after the mode switch to the drive motor; thus, the hybrid vehicle can quickly and smoothly enter the parallel drive mode from the series drive mode.

Description

Technical Field

[0001] The present invention relates to the technical field of hybrid vehicle control, and particularly to a parallel-series control method for a hybrid vehicle, a vehicle controller and a system. Background Art

[0002] The series power is composed of three power assemblies: an engine, a generator and a motor. The three are connected in series to form a SHEV power unit system. The engine drives the generator to generate electricity, and the electric energy is transmitted to the battery or the drive motor through the controller. The motor drives the vehicle through a speed-changing mechanism. When the load is small, the battery drives the drive motor to drive the wheels. When the load is large, the engine drives the generator to generate electricity to drive the drive motor. The parallel power has the engine and the drive motor jointly driving the vehicle. The engine and the drive motor belong to two systems and can independently provide torque to the vehicle transmission system. They can travel together or independently on different roads. The hybrid vehicle has the characteristics of series and parallel. The power system includes an engine, a generator and a motor; according to different supercharging devices, it is divided into two types: engine type and motor type; in the form based on the engine, the engine is the main power source and the drive motor is the auxiliary power source; in the form based on the drive motor, the engine is the auxiliary power source and the motor is the main power source.

[0003] When the vehicle is at medium and low speeds, the clutch is disengaged, and the vehicle operates in the series drive mode, driven by the drive motor, and the engine stops; when the vehicle is at medium and high speeds, the clutch is engaged, and the vehicle operates in the parallel drive mode, and the engine directly drives the vehicle at a fixed speed ratio. The hybrid vehicle will enter the engine parallel direct drive mode under high-speed conditions. In the direct drive mode, the engine has higher efficiency and better vehicle economy.

[0004] Since when the vehicle enters the parallel drive mode from the series drive mode, the VCU, as the vehicle controller, issues different control commands to each component, how to enter the parallel drive mode quickly and smoothly is an important indicator of the quality of the hybrid vehicle control strategy. Summary of the Invention

[0005] The present invention provides a parallel-series control method for a hybrid vehicle, a vehicle controller and a system, which can enable the hybrid vehicle to enter the parallel drive mode quickly and smoothly from the series drive mode.

[0006] In a first aspect, the present invention provides a parallel-series control method for a hybrid vehicle, including the following steps:

[0007] When it is detected that the vehicle meets the preset conditions for entering parallel, control the vehicle to enter the parallel drive mode;

[0008] Control the engine torque to be adjusted to the engine target torque, control the engine speed to be adjusted to the engine target speed, and control the engine flywheel end torque to be adjusted to the target flywheel end torque;

[0009] When it is detected that the torque at the engine flywheel end is adjusted to the preset torque, control the clutch to engage and make the front end of the clutch torque-free;

[0010] Obtain the clutch engagement state. When it is detected that the clutch engagement state is complete, switch the operating mode of the generator and transfer the torque of the generator after mode switching to the drive motor.

[0011] In some embodiments, the step of "controlling the engine speed to be adjusted to the engine target speed" specifically includes the following steps:

[0012] Control the engine speed to be synchronously matched according to the speed at the rear end of the clutch, and adjust it to the engine target speed through the generator controller.

[0013] In some embodiments, before the step of "when it is detected that the torque at the engine flywheel end is adjusted to the preset torque, control the clutch to engage and make the front end of the clutch torque-free", the following steps are specifically included:

[0014] Control the difference between the engine speed and the engine target speed to be within a preset range.

[0015] In some embodiments, the step of "switching the operating mode of the generator" specifically includes the following steps:

[0016] Control the generator to convert from the speed control mode to the torque control mode.

[0017] In some embodiments, the step of "when it is detected that the vehicle meets the preset conditions for entering parallel operation, control the vehicle to enter the parallel drive mode" specifically includes the following steps:

[0018] Obtain the real-time vehicle speed and real-time energy consumption;

[0019] When it is detected that the real-time vehicle speed is greater than the preset vehicle speed and the real-time energy consumption is greater than the preset critical energy consumption, control the vehicle to enter the parallel drive mode.

[0020] In a second aspect, the present invention provides a vehicle controller, including:

[0021] A parallel mode entry module, configured to control the vehicle to enter the parallel drive mode when it is detected that the vehicle speed meets the preset conditions;

[0022] An engine data adjustment module, connected to the parallel mode entry module, configured to control the engine torque to be adjusted to the engine target torque, control the engine speed to be adjusted to the engine target speed, and control the torque at the engine flywheel end to be adjusted to the target flywheel end torque;

[0023] The clutch engagement module, which is communicatively connected to the engine data adjustment module, is configured to control the clutch to engage and make the front end of the clutch torque-free when it detects that the torque at the engine flywheel end is adjusted to a preset torque.

[0024] The torque transfer module, which is communicatively connected to the clutch engagement module, is configured to obtain the clutch engagement state. When it detects that the clutch engagement state is completed, it switches the operating mode of the generator and transfers the torque of the generator after the mode switch to the drive motor.

[0025] In some embodiments, the engine data adjustment module is configured to control the engine speed to be synchronized and matched according to the clutch rear end speed and adjusted to the engine target speed.

[0026] In some embodiments, the engine data adjustment module is configured to control the difference between the engine speed and the engine target speed within a preset range.

[0027] In some embodiments, the torque transfer module is configured to control the generator to convert from the speed control mode to the torque control mode.

[0028] In a third aspect, the present invention provides a hybrid vehicle series-parallel control system, including:

[0029] The vehicle controller as described above, which is configured to issue control instructions for regulating each subsystem;

[0030] The generator subsystem includes a generator controller communicatively connected to the vehicle controller and a generator communicatively connected to the generator controller. The generator controller is configured to control and adjust the generator according to the control instructions issued by the vehicle controller.

[0031] The engine subsystem includes an engine controller communicatively connected to the vehicle controller and an engine communicatively connected to the engine controller. The engine controller is configured to control and adjust the engine according to the control instructions issued by the vehicle controller.

[0032] The clutch subsystem includes a clutch controller communicatively connected to the vehicle controller and a clutch communicatively connected to the clutch controller. The clutch controller is configured to control and adjust the clutch according to the control instructions issued by the vehicle controller.

[0033] The drive motor subsystem includes a drive motor controller communicatively connected to the vehicle controller and a drive motor communicatively connected to the drive motor controller. The drive motor controller is configured to control and adjust the drive motor according to the control instructions issued by the vehicle controller.

[0034] The beneficial effects brought by the technical solution provided by the present invention include:

[0035] An embodiment of the present invention provides a series-parallel control method for a hybrid vehicle. When it is detected that the vehicle speed meets a preset condition, the vehicle is controlled to enter a parallel drive mode; the engine torque is controlled to be adjusted to the engine target torque, and the engine speed is controlled to be adjusted to the engine target speed; after the engine flywheel end torque is controlled to be adjusted to a preset torque, the clutch is controlled to engage, and there is no torque at the front end of the clutch; the clutch engagement state is obtained. When it is detected that the clutch engagement state is completed, the operating mode of the generator is switched, and the torque of the generator after the mode switch is transferred to the drive motor.

[0036] The VCU sends the synchronous speed to the GCU, and the GCU actively adjusts the engine speed - the engine target speed. The engine speed can be quickly and accurately adjusted through the generator, and the engine speed can be quickly and stably adjusted. At the same time, the VCU sends a torque command to the EMS to make the engine torque fall within the torque - the engine target torque that takes into account both economy and good power output; the engine torque is controlled within the range with the best economy, and the torque deviation from the series condition torque to the parallel switching torque is not large, shortening the torque adjustment time. At the same time, after entering the parallel mode, the engine directly drives the vehicle torque in a very good torque condition; the generator speed control is load control with the engine, which can quickly offset the engine torque, making the engine flywheel end torque quickly reach 0 NM. At the same time, the VCU controls the engine flywheel end torque output to be 0 - the preset torque, and the VCU sends an engagement command, and the TCU controls the clutch engagement action, so that there is no torque at the front end of the clutch during the engagement process, and the front end speed of the clutch matches the wheel end vehicle speed, making the clutch engagement smoother, and there is no additional load increase during the vehicle driving during the engagement process, and the driving is more smooth. Finally, when the clutch engagement is completed, the generator torque is transferred to the drive motor torque, and the front axle drive torque demand can be quickly responded according to the wheel end power demand. Therefore, the hybrid vehicle can quickly and smoothly enter the parallel drive mode from the series drive mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiment descriptions. Obviously, the following described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0038] Figure 1 It is a schematic flow chart of the steps of the series-parallel control method for the hybrid vehicle described in the embodiment of the present invention;

[0039] Figure 2 It is a schematic diagram of the smoothness of the series-parallel process in the embodiment of the present invention;

[0040] Figure 3 is a schematic block diagram of the structure of the vehicle controller according to the embodiment of the present invention;

[0041] Figure 4 is an interaction diagram of each controller during the parallel process according to the embodiment of the present invention. Detailed Embodiments

[0042] Now, specific embodiments of the present invention will be described in detail. Examples of the present invention are illustrated in the accompanying drawings. Although the present invention will be described in conjunction with specific embodiments, it will be understood that it is not intended to limit the present invention 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 invention 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.

[0043] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0044] Note: The examples to be introduced next are only specific examples and do not limit that the embodiments of the present invention must be the following specific steps, numerical values, conditions, data, sequences, etc. Those skilled in the art can use the concept of the present invention to construct more embodiments not mentioned in this specification by reading this specification.

[0045] The present invention provides a method and system for adaptive window lifting of an automobile based on perception fusion, which solves the problems of environmental pollution inside the vehicle and poor riding experience caused by the window not being closed or not being fully closed during bad weather when the vehicle is parked outdoors, and improves the intelligence and comfort of the vehicle.

[0046] When the vehicle is at medium and low speeds, the clutch is disengaged, and the vehicle operates in a series drive mode, driven by the drive motor, and the engine is shut down; when the vehicle is at medium and high speeds, the clutch is engaged, and the vehicle operates in a parallel drive mode, and the vehicle is directly driven by the engine at a fixed speed ratio. The hybrid vehicle will enter the engine parallel direct drive mode under high-speed conditions. In the direct drive mode, the engine has higher efficiency and better vehicle economy.

[0047] Since when the vehicle switches from the series drive mode to the parallel drive mode, the VCU, as the vehicle controller, issues different control commands to each component, how to quickly and smoothly enter the parallel drive mode is an important indicator of the quality of the hybrid vehicle control strategy.

[0048] Specifically, as Figure 1As shown in the figure, the present invention provides a parallel-series control method for a hybrid vehicle, which is applied to a vehicle controller and includes the following steps:

[0049] S100, when it is detected that the vehicle meets the preset conditions for entering the parallel mode, control the vehicle to enter the parallel drive mode;

[0050] S200, control the engine torque to be adjusted to the engine target torque, control the engine speed to be adjusted to the engine target speed, and control the engine flywheel end torque to be adjusted to the target flywheel end torque;

[0051] S300, when it is detected that the engine flywheel end torque is adjusted to the preset torque, control the clutch to engage and make the front end of the clutch torque-free;

[0052] S400, obtain the clutch engagement state. When it is detected that the clutch engagement state is completed, switch the working mode of the generator and transfer the torque of the generator after the mode switch to the drive motor.

[0053] Preferably, in another embodiment of the present application, the step of "controlling the engine speed to be adjusted to the engine target speed" specifically includes the following steps:

[0054] Control the engine speed to perform speed synchronization matching according to the generator speed.

[0055] It should be noted that the vehicle controller is VCU (Vehicle control unit), the generator controller is GCU (Generator Control Unit), the engine controller is EMS (Engine Management System), the clutch controller is TCU (Transmission Control Unit), and the drive motor controller is MCU (Moter Control Unit).

[0056] The vehicle controller VCU (Vehicle control unit), as the central control unit of new energy vehicles, is the core of the entire control system. VCU collects the motor and battery status, accelerator pedal signal, brake pedal signal, and other actuator sensor controller signals. After comprehensive analysis and corresponding judgments according to the driver's driving intention, it monitors the actions of each component controller in the lower layer. It is responsible for the normal driving of the vehicle, braking energy feedback, energy management of the vehicle engine and power battery, network management, fault diagnosis and handling, vehicle status monitoring, etc., so as to ensure that the vehicle works normally and stably under better power performance, higher economy and reliability.

[0057] Specifically, in this embodiment, the VCU sends the synchronous speed to the GCU, and the GCU actively adjusts the engine speed - the engine target speed. The engine speed is quickly and accurately adjusted through the generator, and the engine speed can be quickly and stably adjusted. At the same time, the VCU sends a torque command to the EMS to make the engine torque fall into the torque - the engine target torque that takes into account both economy and better power output; the engine torque is controlled in the range with the best economy, and the torque deviation from the series operating condition torque to the parallel switching torque is not large, shortening the torque adjustment time. At the same time, after entering the parallel mode, the engine directly drives the vehicle torque in a very good torque condition; the generator speed control is load control with the engine, which can quickly offset the engine torque, making the engine flywheel end torque quickly reach 0 NM.

[0058] The VCU controls the engine flywheel end torque output to be 0 - the preset torque. The VCU sends a fitting command, and the TCU controls the clutch fitting action, so that there is no torque at the front end of the clutch during the fitting process, and the front end speed of the clutch matches the wheel end vehicle speed. The clutch fitting can be made smoother, and there is no additional load increase during the vehicle driving during the fitting process, and the driving is more smooth.

[0059] After the clutch fitting is completed, the generator torque is transferred to the drive motor torque, and the front axle drive torque demand can be quickly responded to according to the wheel end power demand.

[0060] Therefore, through the above operations, also referring to Figure 2 as shown, the entire series - parallel drive process is fast and stable, and the present invention can enable the hybrid vehicle to quickly and smoothly enter the parallel drive mode from the series drive mode.

[0061] Preferably, in another embodiment of the present application, the step of "S200, controlling the engine speed to be adjusted to the engine target speed" specifically includes the following steps:

[0062] Controlling the engine speed to perform speed synchronization matching according to the rear - end speed of the clutch, and adjusting it to the engine target speed through the generator controller.

[0063] Specifically, in this embodiment, there is a speed ratio between the drive motor speed and the wheel speed. The rear - end speed of the clutch is obtained by converting the drive motor speed and the speed ratio, and this rear - end speed of the clutch is the engine target speed; then controlling the engine speed to perform speed synchronization matching according to the rear - end speed of the clutch, and adjusting it to the engine target speed through the generator controller.

[0064] Preferably, in another embodiment of the present application, before the step of "S300, when it is detected that the engine flywheel end torque is adjusted to the preset torque, controlling the clutch to fit and making the front end of the clutch torque - free", the following steps are specifically included:

[0065] Control the difference between the engine speed and the target engine speed within a preset range.

[0066] Specifically, in this embodiment, by controlling the difference between the engine speed and the target engine speed within a preset range, it is possible to start the clutch engagement only after this preset range is achieved, so as to make the clutch engagement smoother and the vehicle running more smoothly.

[0067] Preferably, in another embodiment of the present application, the step of "S400, switching the operating mode of the generator" specifically includes the following steps:

[0068] Control the generator to convert from the speed control mode to the torque control mode.

[0069] Specifically, in this embodiment, after the clutch engagement is completed, control the generator to convert from the speed control mode to the torque control mode, and at the same time quickly transfer the generator torque for maintaining the engine torque in the high-efficiency area to the front drive motor.

[0070] Preferably, in another embodiment of the present application, the step of "S100, when it is detected that the vehicle meets the preset conditions for entering the parallel mode, control the vehicle to enter the parallel drive mode" specifically includes the following steps:

[0071] Obtain the real-time vehicle speed and real-time energy consumption;

[0072] When it is detected that the real-time vehicle speed is greater than the preset vehicle speed and the real-time energy consumption is greater than the preset critical energy consumption, control the vehicle to enter the parallel drive mode.

[0073] Specifically, in this embodiment, since when the whole vehicle is at medium and low speeds, the clutch is disengaged, the whole vehicle operates in the series drive mode and is driven by the drive motor, and the engine is shut down; when the whole vehicle is at medium and high speeds, the clutch is engaged and the whole vehicle operates in the parallel drive mode; therefore, the preset vehicle speed can be set according to the actual vehicle model; at the same time, the preset critical energy consumption is set according to the conditions that are more economical in the medium and high speed cases during vehicle driving.

[0074] See Figure 3 As shown, the embodiment of the present invention also provides a vehicle controller, including:

[0075] A parallel mode entry module, configured to control the vehicle to enter the parallel drive mode when it is detected that the vehicle speed meets the preset conditions;

[0076] An engine data adjustment module, connected to the parallel mode entry module, configured to control the engine torque to be adjusted to the target engine torque, control the engine speed to be adjusted to the target engine speed, and control the engine flywheel end torque to be adjusted to the target flywheel end torque;

[0077] The clutch engagement module, which is communicatively connected to the engine data adjustment module, is configured to control the clutch to engage and make the front end of the clutch torque-free when it is detected that the torque at the engine flywheel end is adjusted to a preset torque.

[0078] The torque transfer module, which is communicatively connected to the clutch engagement module, is configured to obtain the clutch engagement state. When it is detected that the clutch engagement state is completed, it switches the operating mode of the generator and transfers the torque of the generator after the mode switch to the drive motor.

[0079] The engine data adjustment module is configured to control the engine speed to be synchronously matched according to the speed at the rear end of the clutch and adjusted to the target engine speed.

[0080] The engine data adjustment module is configured to control the difference between the engine speed and the target engine speed within a preset range.

[0081] The torque transfer module is configured to control the generator to convert from the speed control mode to the torque control mode.

[0082] The beneficial effects of the present invention are as follows:

[0083] 1. During the engine speed synchronous control stage, the engine torque is controlled within a better torque range, which can take into account the engine operation economy. While efficiently generating electricity, it can quickly release power when there is a power demand at the wheel end, avoiding the hysteresis reaction of the engine actual torque unloading to 0 NM and then re-establishing the torque.

[0084] 2. During the engine speed synchronous stage, the generator is used to quickly and accurately adjust the engine speed, which can quickly and stably adjust the engine speed. At the same time, the torque at the engine flywheel end is 0 nm, creating very good conditions for the subsequent clutch engagement.

[0085] 3. The time of the entire series-parallel process is greatly shortened. The current solution basically completes the entire process within 1.6 s, which is significantly better than other vehicle manufacturers, generally between 2 s - 4 s. It can quickly and smoothly complete the transition from series drive to parallel drive, and at the same time, it can control the acceleration fluctuation within 0.04 g. The vehicle driver is basically insensitive to the drive mode switch, greatly improving the vehicle driving quality. Because the torque output at the engine flywheel end is 0 when the clutch engages, there is no increase in load on the wheel end driving force.

[0086] See Figure 4 As shown, the embodiment of the present invention also provides a series-parallel control system for a hybrid vehicle, including:

[0087] The vehicle controller as described above, which is configured to issue control commands for regulating each subsystem;

[0088] The generator subsystem includes a generator controller communicatively connected to the vehicle controller, and a generator communicatively connected to the generator controller. The generator controller is configured to control and adjust the generator according to the control instructions issued by the vehicle controller;

[0089] The engine subsystem includes an engine controller communicatively connected to the vehicle controller, and an engine communicatively connected to the engine controller. The engine controller is configured to control and adjust the engine according to the control instructions issued by the vehicle controller;

[0090] The clutch subsystem includes a clutch controller communicatively connected to the vehicle controller, and a clutch communicatively connected to the clutch controller. The clutch controller is configured to control and adjust the clutch according to the control instructions issued by the vehicle controller;

[0091] The drive motor subsystem includes a drive motor controller communicatively connected to the vehicle controller, and a drive motor communicatively connected to the drive motor controller. The drive motor controller is configured to control and adjust the drive motor according to the control instructions issued by the vehicle controller.

[0092] Therefore, the VCU of the present invention sends the synchronous speed to the GCU, and the GCU actively adjusts the engine speed - the engine target speed. The engine speed can be quickly and accurately adjusted through the generator, and the engine speed can be quickly and stably adjusted. At the same time, the VCU sends a torque command to the EMS, so that the engine torque falls within the torque - the engine target torque that takes into account both economy and good power output; the engine torque is controlled within the range with the best economy, and the torque deviation from the series operating condition torque to the parallel switching torque is small, shortening the torque adjustment time. At the same time, after entering the parallel mode, the engine directly drives the vehicle torque in a very good torque condition; the generator speed control is load control with the engine, which can quickly offset the engine torque, making the engine flywheel end torque quickly reach 0 Nm.

[0093] The VCU controls the engine flywheel end torque output to be 0 - a preset torque. The VCU sends a fitting command, and the TCU controls the clutch fitting action, so that there is no torque at the front end of the clutch during the fitting process, and the front end speed of the clutch matches the wheel end vehicle speed. The clutch fitting can be made smoother, and there is no additional load increase during the vehicle driving during the fitting process, making the driving more comfortable.

[0094] After the clutch fitting is completed, the generator torque is transferred to the drive motor torque, and the front axle drive torque demand can be quickly responded to according to the wheel end power demand.

[0095] Therefore, in the engine torque control stage of the present invention, the engine torque is controlled at a torque with better economy instead of 0 torque, which can greatly reduce the engine torque adjustment time. At the same time, the GCU enters the speed control mode to quickly adjust the speed at the front end of the clutch, precisely control the matching of the speed at the front end of the clutch and the wheel-end vehicle speed, so that the clutch can be quickly engaged. After the clutch is engaged, the generator torque originally used to maintain the engine torque in the high-efficiency area is quickly transferred to the drive motor, and the entire process of in-parallel drive is fast and stable.

[0096] 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 implemented.

[0097] All or part of the processes of the above method of the present invention 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 various method embodiments can be implemented. 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 that can carry 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.

[0098] 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 is stored on the memory and runs on the processor. When the processor executes the computer program, all or part of the method steps of the above method are implemented.

[0099] 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 using various interfaces and lines.

[0100] The memory can be used to store computer programs and / or models. The processor realizes various functions of the computer device by running or executing the computer programs and / or models stored in the memory, and by invoking 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 can 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 can 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.

[0101] Those skilled in the art should understand that the embodiments of the present invention may be provided as a method, a system, a server, or a computer program product. Therefore, the present invention may take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention 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.

[0102] The present invention 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 invention. It should be understood that each flow and / or block in the flowchart and / or block diagram, and combinations 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 processors of general-purpose computers, special-purpose computers, embedded processors, or other programmable data processing devices to produce a machine, such that the instructions executed by the processors of the computer or other programmable data processing devices produce means for implementing the functions specified in the Figure 1 one or more flows and / or blocks Figure 1 one or more blocks.

[0103] 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 produce 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.

[0104] These computer program instructions can also be loaded onto a computer or other programmable data processing device, such that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, and thus 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.

[0105] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these changes and modifications.

Claims

1. A parallel and series hybrid vehicle control method, characterized in that It includes the following steps: When it is detected that the vehicle meets the preset conditions for entering the parallel mode, control the vehicle to enter the parallel driving mode; Control the engine torque to be adjusted to the engine target torque, control the engine speed to be adjusted to the engine target speed, and control the engine flywheel end torque to be adjusted to the target flywheel end torque; When it is detected that the engine flywheel end torque is adjusted to the target flywheel end torque, control the clutch to engage and make the front end of the clutch torque-free; Obtain the clutch engagement state. When it is detected that the clutch engagement state is completed, switch the operating mode of the generator and transfer the generator torque after the mode switch to the drive motor; The step of "control the engine speed to be adjusted to the engine target speed" specifically includes the following steps: Control the engine speed to be synchronously matched according to the clutch rear end speed and adjust it to the engine target speed through the generator controller.

2. The parallel and series hybrid vehicle control method according to claim 1, characterized in that Before the step of "when it is detected that the engine flywheel end torque is adjusted to the target flywheel end torque, control the clutch to engage and make the front end of the clutch torque-free", specifically includes the following steps: Control the difference between the engine speed and the engine target speed to be within a preset range.

3. The hybrid vehicle series-parallel control method according to claim 1, wherein The step of "switch the operating mode of the generator" specifically includes the following steps: Control the generator to switch from the speed control mode to the torque control mode.

4. The parallel and series hybrid vehicle control method according to claim 1, wherein The step of "when it is detected that the vehicle meets the preset conditions for entering the parallel mode, control the vehicle to enter the parallel driving mode" specifically includes the following steps: Obtain the real-time vehicle speed and real-time energy consumption; When it is detected that the real-time vehicle speed is greater than the preset vehicle speed and the real-time energy consumption is greater than the preset critical energy consumption, control the vehicle to enter the parallel driving mode.

5. A vehicle controller, characterized in that, It includes: A parallel mode entry module, used to control the vehicle to enter the parallel driving mode when it is detected that the vehicle speed meets the preset conditions; An engine data adjustment module, communicatively connected to the parallel mode entry module, used to control the engine torque to be adjusted to the engine target torque, control the engine speed to be adjusted to the engine target speed, and control the engine flywheel end torque to be adjusted to the target flywheel end torque; A clutch engagement module, communicatively connected to the engine data adjustment module, used to control the clutch to engage and make the front end of the clutch torque-free when it is detected that the engine flywheel end torque is adjusted to the target flywheel end torque; A torque transfer module, communicatively connected to the clutch engagement module, used to obtain the clutch engagement state, switch the operating mode of the generator when it is detected that the clutch engagement state is completed, and transfer the generator torque after the mode switch to the drive motor; The engine data adjustment module is used to control the engine speed to be synchronously matched according to the clutch rear end speed and adjust it to the engine target speed.

6. The vehicle controller according to claim 5, characterized in that, The engine data adjustment module is used to control the difference between the engine speed and the engine target speed to be within a preset range.

7. The vehicle controller according to claim 5, characterized in that, The torque transfer module is used to control the generator to switch from the speed control mode to the torque control mode.

8. A parallel-in and parallel-out control system for a hybrid vehicle, characterized in that, It includes: The vehicle controller as claimed in claim 5, used to issue control instructions for regulating each subsystem; The generator subsystem includes a generator controller communicatively connected to the vehicle controller, and a generator communicatively connected to the generator controller. The generator controller is configured to control and adjust the generator according to the control instructions issued by the vehicle controller; The engine subsystem includes an engine controller communicatively connected to the vehicle controller, and an engine communicatively connected to the engine controller. The engine controller is configured to control and adjust the engine according to the control instructions issued by the vehicle controller; The clutch subsystem includes a clutch controller communicatively connected to the vehicle controller, and a clutch communicatively connected to the clutch controller. The clutch controller is configured to control and adjust the clutch according to the control instructions issued by the vehicle controller; The drive motor subsystem includes a drive motor controller communicatively connected to the vehicle controller, and a drive motor communicatively connected to the drive motor controller. The drive motor controller is configured to control and adjust the drive motor according to the control instructions issued by the vehicle controller.

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