CN115891971A - Hybrid vehicle parallel control method, vehicle control unit and system - Google Patents
Hybrid vehicle parallel control method, vehicle control unit and system Download PDFInfo
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- CN115891971A CN115891971A CN202211309536.2A CN202211309536A CN115891971A CN 115891971 A CN115891971 A CN 115891971A CN 202211309536 A CN202211309536 A CN 202211309536A CN 115891971 A CN115891971 A CN 115891971A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Abstract
The invention relates to a hybrid vehicle parallel control method, a vehicle control unit and a system. The method comprises the following steps: when the fact that the vehicle meets the preset condition of entering the parallel connection is detected, the vehicle is controlled to enter a parallel connection driving mode; controlling the torque of the engine to be adjusted to the target torque of the engine, controlling the rotating speed of the engine to be adjusted to the target rotating speed of the engine, and controlling the torque of the flywheel end of the engine to be adjusted to the torque of the target flywheel end; when the torque of the flywheel end of the engine is detected to be adjusted to the preset torque, the clutch is controlled to be attached, and the front end of the clutch has no torque; acquiring a clutch attaching state, switching the mode of the working mode of the generator when detecting that the clutch attaching state is the attaching completion, and transferring the torque of the generator after the mode switching to a driving motor; therefore, the hybrid vehicle can be quickly and smoothly switched from the series driving mode to the parallel driving mode.
Description
Technical Field
The invention relates to the technical field of hybrid vehicle control, in particular to a parallel control method for a hybrid vehicle, a vehicle control unit and a system.
Background
The series power is composed of three power assemblies of an engine, a generator and a motor, the three power assemblies are connected in series to form an SHEV power unit system, the engine drives the generator to generate electricity, the electric energy is transmitted to a battery or a driving motor through a controller, and the motor drives an automobile through a speed change mechanism. When the load is small, the battery drives the driving motor to drive the wheels, and when the load is large, the engine drives the generator to generate electricity to drive the driving motor. The engine and the driving motor which are connected with power in parallel drive the automobile together, and the engine and the driving motor belong to two systems, can independently provide torque for an automobile transmission system, and can run together or independently on different roads. The hybrid vehicle has the characteristics of series connection and parallel connection, and a power system comprises an engine, a generator and a motor; according to different supercharging devices, the device is divided into an engine type and a motor type; in the form of taking an engine as a base, the engine is a main power source, and a driving motor is an auxiliary power source; in the form of a drive motor, the engine is an auxiliary power source and the motor is the primary power source.
When the whole vehicle is at a medium-low speed, the clutch is separated, the whole vehicle works in a series driving mode and is driven by the driving motor, and the engine is stopped; when the whole vehicle is at medium and high speed, the clutch is closed, the whole vehicle works in a parallel driving mode, and the vehicle is directly driven by the engine at a fixed speed ratio. The hybrid vehicle can enter an engine parallel direct-drive mode under a high-speed working condition, the direct-drive mode engine is higher in efficiency, and the whole vehicle economy is better.
When a vehicle enters a parallel driving mode from a series driving mode, the VCU serves as a vehicle control unit to send different control instructions to all parts, so that how to quickly and stably enter the parallel driving mode is an important index of the control strategy of the hybrid vehicle.
Disclosure of Invention
The invention provides a parallel control method for a hybrid vehicle, a vehicle controller and a system, which can enable the hybrid vehicle to quickly and stably enter a parallel driving mode from a series driving mode.
In a first aspect, the invention provides a hybrid vehicle-entering parallel control method, which comprises the following steps:
when the fact that the vehicle meets the preset condition of entering the parallel connection is detected, the vehicle is controlled to enter a parallel connection driving mode;
controlling the torque of the engine to be adjusted to the target torque of the engine, controlling the rotating speed of the engine to be adjusted to the target rotating speed of the engine, and controlling the torque of the flywheel end of the engine to be adjusted to the torque of the target flywheel end;
when the torque of the flywheel end of the engine is detected to be adjusted to the preset torque, the clutch is controlled to be attached, and the front end of the clutch has no torque;
and acquiring a clutch attaching state, switching the mode of the working mode of the generator when detecting that the clutch attaching state is the attaching completion, and transferring the torque of the generator after the mode switching to a driving motor.
In some embodiments, the step of "controlling the engine speed to adjust to the target engine speed" includes the following steps:
and controlling the rotating speed of the engine to synchronously match the rotating speed according to the rotating speed at the rear end of the clutch, and adjusting the rotating speed to be the target rotating speed of the engine through a generator controller.
In some embodiments, before the step of "controlling the clutch to be engaged and making the front end of the clutch have no torque when the torque at the flywheel end of the engine is adjusted to the preset torque is detected", the method specifically includes the following steps:
controlling a difference between the engine speed and the engine target speed within a preset range.
In some embodiments, the step of "switching the operating modes of the generator" specifically includes the following steps:
and controlling the generator to be switched from a rotating speed control mode to a torque control mode.
In some embodiments, the step of controlling the vehicle to enter the parallel driving mode when it is detected that the vehicle meets the preset condition of entering the parallel connection includes the following steps:
acquiring real-time vehicle speed and real-time energy consumption;
and when the real-time vehicle speed is detected to be greater than the preset vehicle speed and the real-time energy consumption is detected to be greater than the preset critical energy consumption, controlling the vehicle to enter a parallel driving mode.
In a second aspect, the present invention provides a vehicle control unit, including:
the parallel mode entering module is used for controlling the vehicle to enter a parallel driving mode when the vehicle speed is detected to meet the preset condition;
the engine data adjusting module and the parallel mode entering module are used for controlling the torque of the engine to be adjusted to the target torque of the engine, controlling the rotating speed of the engine to be adjusted to the target rotating speed of the engine, and controlling the torque of the flywheel end of the engine to be adjusted to the torque of the target flywheel end;
the clutch attaching module is in communication connection with the engine data adjusting module and is used for controlling the attachment of the clutch and enabling the front end of the clutch to have no torque after the fact that the torque of the flywheel end of the engine is adjusted to be the preset torque is detected;
and the torque transfer module is in communication connection with the clutch fitting module and is used for acquiring the fitting state of the clutch, switching the mode of the working mode of the generator when the fitting state of the clutch is detected to be the fitting completion, and transferring the torque of the generator after mode switching to the driving motor.
In some embodiments, the engine data adjusting module is configured to control the engine speed to perform speed synchronization matching according to the clutch rear end speed and adjust to the engine target speed.
In some embodiments, the engine data adjustment module is configured to control a difference between the engine speed and the target engine speed to be within a preset range.
In some embodiments, the torque transfer module is configured to control the generator to transition from a speed control mode to a torque control mode.
In a third aspect, the present invention provides a hybrid vehicle-entering parallel control system, comprising:
the vehicle control unit is used for sending a control instruction for regulating and controlling each subsystem;
the generator subsystem comprises a generator controller in communication connection with the vehicle control unit and a generator in communication connection with the generator controller, and the generator controller is used for controlling and adjusting the generator according to a control instruction sent by the vehicle control unit;
the engine subsystem comprises an engine controller in communication connection with the vehicle control unit and an engine in communication connection with the engine controller, and the engine controller is used for controlling and adjusting the engine according to a control command sent by the vehicle control unit;
the clutch subsystem comprises a clutch controller in communication connection with the vehicle control unit and a clutch in communication connection with the clutch controller, and the clutch controller is used for controlling and adjusting the clutch according to a control command sent by the vehicle control unit;
and the driving motor subsystem comprises a driving motor controller in communication connection with the vehicle control unit and a driving motor in communication connection with the driving motor controller, and the driving motor controller is used for controlling and adjusting the driving motor according to a control instruction sent by the vehicle control unit.
The technical scheme provided by the invention has the beneficial effects that:
the embodiment of the invention provides a method for controlling a hybrid vehicle to enter a parallel connection mode, which is characterized in that when the vehicle speed is detected to meet a preset condition, the vehicle is controlled to enter a parallel connection driving mode; controlling the engine torque to be adjusted to the engine target torque, and controlling the engine rotating speed to be adjusted to the engine target rotating speed; after the torque of the flywheel end of the engine is controlled to be adjusted to the preset torque, the clutch is controlled to be attached, and the front end of the clutch has no torque; and acquiring a clutch attaching state, switching the mode of the working mode of the generator when detecting that the clutch attaching state is the attaching completion, and transferring the torque of the generator after the mode switching to a driving motor.
The VCU sends a synchronous rotating speed to the GCU, the GCU actively adjusts the rotating speed of the engine to the target rotating speed of the engine, the rotating speed of the engine is quickly and accurately adjusted through the generator, the rotating speed of the engine can be quickly and stably adjusted, and meanwhile, the VCU sends a torque instruction to the EMS to enable the torque of the engine to fall to the torque which is the target torque of the engine and has better economical efficiency and power output; the torque of the engine is controlled in an interval with the best economical efficiency, the deviation from the torque of the series working condition to the torque of the parallel switching is not large, the torque adjusting time is shortened, and the torque of the engine directly driven vehicle after the engine enters the parallel connection is in a very good torque working condition; the rotation speed control of the generator is provided with engine load control, and can quickly offset the engine torque, so that the engine flywheel end torque is quickly 0NM. Meanwhile, the VCU controls the torque output of the flywheel end of the engine to be 0-preset torque, the VCU sends a fitting instruction, and the TCU controls the fitting action of the clutch, so that the front end of the clutch has no torque in the fitting process, the rotating speed of the front end of the clutch is matched with the speed of the wheel end, the fitting of the clutch can be smoother, the vehicle does not have extra load increase in the fitting process, and the vehicle can run smoother. And finally, after the clutch is attached, the torque of the generator is transferred to the torque of the driving motor, and the driving torque requirement of the front shaft can be quickly responded according to the power requirement of the wheel end, so that the hybrid vehicle can quickly and stably enter a parallel driving mode from a series driving mode.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic flow chart illustrating steps of a parallel control method for a hybrid vehicle according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating smoothness of a parallel connection process according to an embodiment of the present invention;
fig. 3 is a schematic block diagram of a structure of the vehicle control unit according to the embodiment of the present invention;
fig. 4 is a schematic diagram of interaction between controllers in a parallel process according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the present embodiments of the invention, examples of which are illustrated in the accompanying drawings. While the invention will be described in conjunction with the specific embodiments, it will be understood that they are not intended to limit the invention to the embodiments described. On the contrary, it is intended to cover alternatives, modifications, and equivalents as may be included within the spirit and scope of the invention as defined by the appended claims. It should be noted that the method steps described herein may be implemented by any functional block or functional arrangement and that any functional block or functional arrangement may be implemented as a physical entity or a logical entity, or a combination of both.
In order that those skilled in the art will better understand the present invention, the following detailed description of the invention is provided in conjunction with the accompanying drawings and the detailed description of the invention.
Note that: the example to be described next is only a specific example, and does not limit the embodiments of the present invention necessarily to the following specific steps, values, conditions, data, orders, and the like. Those skilled in the art can, upon reading this specification, utilize the concepts of the present invention to construct more embodiments than those specifically described herein.
The invention provides a perception fusion-based automobile window self-adaptive lifting method and system, which solve the problems of environmental pollution in an automobile and poor riding experience caused by unclosed or incompletely closed windows due to severe weather during outdoor parking of the automobile, and improve the intelligent degree and comfort effect of the automobile.
When the whole vehicle is at a medium-low speed, the clutch is separated, the whole vehicle works in a series driving mode and is driven by the driving motor, and the engine is stopped; when the whole vehicle is at a medium-high speed, the clutch is closed, the whole vehicle works in a parallel driving mode, and the vehicle is directly driven by the engine at a fixed speed ratio. The hybrid vehicle can enter an engine parallel direct-drive mode under a high-speed working condition, the direct-drive mode engine is higher in efficiency, and the whole vehicle economy is better.
When a vehicle enters a parallel driving mode from a series driving mode, the VCU serves as a vehicle control unit and sends different control instructions to various parts, so how to quickly and stably enter the parallel driving mode is an important index of the quality of a control strategy of the hybrid vehicle.
Specifically, as shown in fig. 1, the invention provides a hybrid vehicle parallel-entering control method, which is applied to a vehicle controller and comprises the following steps:
s100, when detecting that the vehicle meets a preset condition of entering parallel connection, controlling the vehicle to enter a parallel connection driving mode;
s200, controlling the torque of the engine to be adjusted to the target torque of the engine, controlling the rotating speed of the engine to be adjusted to the target rotating speed of the engine, and controlling the torque of the flywheel end of the engine to be adjusted to the torque of the target flywheel end;
s300, when the torque at the flywheel end of the engine is detected to be adjusted to the preset torque, controlling the clutch to be attached, and enabling the front end of the clutch to have no torque;
s400, obtaining a clutch attaching state, carrying out mode switching on the working mode of the generator when detecting that the clutch attaching state is the attaching completion, and transferring the generator torque after the mode switching to a driving motor.
Preferably, in another embodiment of the present application, the step of "controlling the engine speed to adjust to the target engine speed" includes the following steps:
and controlling the rotating speed of the engine to synchronously match the rotating speed according to the rotating speed of the generator.
The Vehicle Control Unit VCU (Vehicle Control Unit), the Generator Control Unit GCU (Generator Control Unit), the Engine Control Unit EMS (Engine Management System), the clutch Control Unit TCU (Transmission Control Unit), and the drive motor Control Unit MCU (motor Control Unit) are provided.
The Vehicle Control Unit (VCU) is a core of the whole control system as a central control unit of the new energy Vehicle. The VCU collects motor and battery states, an accelerator pedal signal, a brake pedal signal and other actuator sensor controller signals, comprehensively analyzes and makes corresponding judgment according to the driving intention of a driver, and monitors the action of each part controller at the lower layer, and is responsible for normal driving, brake energy feedback, energy management of a whole vehicle engine and a power battery, network management, fault diagnosis and processing, vehicle state monitoring and the like of the vehicle, so that the whole vehicle can normally and stably work under the states of better dynamic property, higher economy and reliability.
Specifically, in this embodiment, the VCU sends a synchronous rotation speed to the GCU, the GCU actively adjusts the engine rotation speed to the target engine rotation speed, the generator quickly and accurately adjusts the engine rotation speed, and the VCU sends a torque command to the EMS to make the engine torque fall to a torque-target engine torque that is good in economy and power output; the torque of the engine is controlled in an interval with the best economical efficiency, the deviation from the torque of the series working condition to the torque of the parallel switching is not large, the torque adjusting time is shortened, and the torque of the engine directly driven vehicle after the engine enters the parallel connection is in a very good torque working condition; the generator speed control is with engine load control, which can quickly counteract the engine torque, so that the engine flywheel end torque is quickly to 0NM.
VCU control engine flywheel end torque output is 0-default moment of torsion, VCU sends the laminating instruction, and TCU control clutch laminating action for laminating process clutch front end does not have the moment of torsion, and clutch front end rotational speed matches with wheel end speed of a motor vehicle, can accomplish more smoothly to the clutch laminating, and the vehicle is gone and is had no extra load to increase at the laminating in-process, and the driving is more smooth-going.
After the clutch is attached, the torque of the generator is transferred to the torque of the driving motor, and the driving torque demand of the front axle can be quickly responded according to the power demand of the wheel end.
Therefore, through the operation and referring to fig. 2, the whole parallel driving process is fast and smooth, and the hybrid vehicle can be fast and smoothly switched from the series driving mode to the parallel driving mode by the parallel driving method.
Preferably, in another embodiment of the present application, the step of "S200, controlling the engine speed to adjust to the target engine speed" includes the following steps:
and controlling the rotating speed of the engine to synchronously match the rotating speed according to the rotating speed at the rear end of the clutch, and adjusting the rotating speed to the target rotating speed of the engine through a generator controller.
Specifically, in this embodiment, a rotation speed ratio exists between the rotation speed of the driving motor and the rotation speed of the wheel, and the rotation speed of the rear end of the clutch is obtained by converting the rotation speed of the driving motor and the rotation speed ratio, and the rotation speed of the rear end of the clutch is the target rotation speed of the engine; and controlling the rotating speed of the engine to synchronously match the rotating speed according to the rotating speed at the rear end of the clutch, and adjusting the rotating speed to be the target rotating speed of the engine through a generator controller.
Preferably, in another embodiment of the present application, the step "S300, after detecting that the torque at the flywheel end of the engine is adjusted to the preset torque, controlling the clutch to be engaged and making the front end of the clutch have no torque" specifically includes the following steps:
controlling a difference between the engine speed and the engine target speed within a preset range.
Specifically, in this embodiment, the difference between the engine speed and the target engine speed is controlled within a preset range, so that the clutch can be attached only after the preset range is reached, and the clutch can be attached more smoothly, so that the driving is smoother.
Preferably, in another embodiment of the present application, the step of "S400, performing mode switching on the operating mode of the generator" specifically includes the following steps:
and controlling the generator to be switched from a rotating speed control mode to a torque control mode.
Specifically, in the present embodiment, after the clutch engagement is completed, the generator is controlled to be switched from the rotation speed control mode to the torque control mode, and the generator torque for maintaining the engine torque in the high-efficiency region is quickly transferred to the front drive motor.
Preferably, in another embodiment of the present application, the step of "S100, when it is detected that the vehicle meets a preset condition for entering parallel connection, controlling the vehicle to enter a parallel connection driving mode" includes the following steps:
acquiring real-time vehicle speed and real-time energy consumption;
and when the real-time vehicle speed is detected to be greater than the preset vehicle speed and the real-time energy consumption is detected to be greater than the preset critical energy consumption, controlling the vehicle to enter a parallel driving mode.
Specifically, in the embodiment, when the whole vehicle is at a medium-low speed, the clutch is disengaged, the whole vehicle works in a series driving mode, the driving motor drives the whole vehicle, and the engine is stopped; when the whole vehicle is at a medium-high speed, the clutch is closed, and the whole vehicle works in a parallel driving mode; therefore, the preset vehicle speed can be set according to the actual vehicle type; meanwhile, the preset critical energy consumption is set according to the condition that the vehicle meets more economical conditions under the condition of medium and high speed during running.
Referring to fig. 3, an embodiment of the present invention further provides a vehicle control unit, including:
the parallel mode entering module is used for controlling the vehicle to enter a parallel driving mode when the vehicle speed is detected to meet a preset condition;
the engine data adjusting module and the parallel mode entering module are used for controlling the torque of the engine to be adjusted to the target torque of the engine, controlling the rotating speed of the engine to be adjusted to the target rotating speed of the engine, and controlling the torque of the flywheel end of the engine to be adjusted to the torque of the target flywheel end;
the clutch attaching module is in communication connection with the engine data adjusting module and is used for controlling the attachment of the clutch and enabling the front end of the clutch to have no torque after the fact that the torque of the flywheel end of the engine is adjusted to be the preset torque is detected;
and the torque transfer module is in communication connection with the clutch laminating module and is used for acquiring the laminating state of the clutch, switching the working mode of the generator when the laminating state of the clutch is detected to be the laminating completion, and transferring the torque of the generator after the mode switching to the driving motor.
And the engine data adjusting module is used for controlling the rotating speed of the engine to synchronously match the rotating speed according to the rotating speed at the rear end of the clutch and adjusting the rotating speed to be the target rotating speed of the engine.
The engine data adjusting module is used for controlling the difference value between the engine rotating speed and the target engine rotating speed to be within a preset range.
And the torque transfer module is used for controlling the generator to be converted into a torque control mode from a rotating speed control mode.
The invention has the beneficial effects that:
1. and in the engine rotating speed synchronous control stage, the engine torque is controlled in a better torque interval, the running economy of the engine can be considered, the power can be quickly released when the power is required at the wheel end while the power is efficiently generated, and the delayed reaction of reestablishing the torque after the actual torque of the engine is unloaded to 0NM is avoided.
2. The engine rotating speed is quickly and accurately adjusted through the generator in the engine rotating speed synchronization stage, the engine rotating speed can be quickly and stably adjusted, meanwhile, the torque of the flywheel end of the engine is 0nm, and a good condition is created for the attachment of a clutch at the back
3. The whole parallel connection process time is greatly shortened, the whole process of the current scheme is basically completed within 1.6s, the time is obviously superior to that of other host factories and is generally between 2s and 4s, the transition from series connection driving to parallel connection driving can be quickly and smoothly completed, the acceleration fluctuation can be controlled within 0.04g, a driver of the whole vehicle basically has no sense on the switching of the driving modes, the driving quality of the whole vehicle is greatly improved, and because the torque output of an engine flywheel end is 0 when the clutch is attached, the driving force of the wheel end is not increased by load.
Referring to fig. 4, an embodiment of the present invention further provides a hybrid vehicle-entering parallel control system, including:
the vehicle control unit is used for sending a control instruction for regulating and controlling each subsystem;
the generator subsystem comprises a generator controller in communication connection with the vehicle control unit and a generator in communication connection with the generator controller, and the generator controller is used for controlling and adjusting the generator according to a control instruction sent by the vehicle control unit;
the engine subsystem comprises an engine controller in communication connection with the vehicle control unit and an engine in communication connection with the engine controller, and the engine controller is used for controlling and adjusting the engine according to a control command sent by the vehicle control unit;
the clutch subsystem comprises a clutch controller in communication connection with the vehicle control unit and a clutch in communication connection with the clutch controller, and the clutch controller is used for controlling and adjusting the clutch according to a control command sent by the vehicle control unit;
and the driving motor subsystem comprises a driving motor controller in communication connection with the vehicle control unit and a driving motor in communication connection with the driving motor controller, and the driving motor controller is used for controlling and adjusting the driving motor according to a control instruction sent by the vehicle control unit.
Therefore, the VCU of the invention sends synchronous rotating speed to the GCU, the GCU actively adjusts the rotating speed of the engine, namely the target rotating speed of the engine, the rotating speed of the engine is quickly and accurately adjusted through the generator, the rotating speed of the engine can be quickly and stably adjusted, and meanwhile, the VCU sends a torque instruction to the EMS, so that the torque of the engine falls into the torque, namely the target torque of the engine, which gives consideration to both economy and power output; the torque of the engine is controlled in an interval with the best economical efficiency, the deviation from the torque of the series working condition to the torque of the parallel switching is not large, the torque adjusting time is shortened, and the torque of the engine directly driven vehicle after the engine enters the parallel connection is in a very good torque working condition; the rotation speed control of the generator is provided with engine load control, and can quickly offset the engine torque, so that the engine flywheel end torque is quickly 0NM.
VCU control engine flywheel end torque output is 0-default moment of torsion, VCU sends the laminating instruction, TCU control clutch laminating action for laminating process clutch front end does not have the moment of torsion, and clutch front end rotational speed matches with the wheel end speed of a motor vehicle, can accomplish more smoothly to the clutch laminating, and the vehicle is gone and is not had extra load increase at the laminating in-process, and the driving is more smooth-going.
After the clutch is attached, the torque of the generator is transferred to the torque of the driving motor, and the driving torque demand of the front axle can be quickly responded according to the power demand of the wheel end.
Therefore, the engine torque is controlled to be a torque rather than a 0 torque with better economy in the clutch rotating speed control stage, the engine torque adjusting time can be greatly shortened, meanwhile, the GCU enters a rotating speed control mode, the rotating speed of the front end of the clutch is rapidly adjusted, the rotating speed of the front end of the clutch is precisely controlled to be matched with the wheel end vehicle speed, the clutch can be rapidly attached, after the clutch is attached, the generator torque originally used for maintaining the engine torque in a high-efficiency area is rapidly connected to the driving motor, and the whole parallel connection driving process is rapid and stable.
Based on the same inventive concept, the embodiments of the present application further provide a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements all or part of the method steps of the above method.
The present invention realizes all or part of the processes of the above methods, and can also be implemented by a computer program instructing related hardware, where the computer program can be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the above method embodiments can be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, recording medium, U.S. disk, removable hard disk, magnetic disk, optical disk, computer Memory, read-Only Memory (ROM), random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution media, and the like. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, in accordance with legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunications signals.
Based on the same inventive concept, embodiments of the present application further provide an electronic device, which includes a memory and a processor, where the memory stores a computer program running on the processor, and the processor executes the computer program to implement all or part of the method steps in the method.
The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like, the processor being the control center of the computer device and the various interfaces and lines connecting the various parts of the overall computer device.
The memory may be used to store computer programs and/or models, and the processor may implement various functions of the computer device by executing or otherwise executing the computer programs and/or models stored in the memory, as well as by invoking data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (e.g., a sound playing function, an image playing function, etc.); the storage data area may store data (e.g., audio data, video data, etc.) created according to the use of the cellular phone. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, server, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), servers, and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A hybrid vehicle parallel control method is characterized by comprising the following steps:
when the fact that the vehicle meets the preset condition of entering the parallel connection is detected, the vehicle is controlled to enter a parallel connection driving mode;
controlling the torque of the engine to be adjusted to the target torque of the engine, controlling the rotating speed of the engine to be adjusted to the target rotating speed of the engine, and controlling the torque of the flywheel end of the engine to be adjusted to the torque of the target flywheel end;
when the torque of the flywheel end of the engine is detected to be adjusted to the preset torque, the clutch is controlled to be attached, and the front end of the clutch has no torque;
and acquiring a clutch attaching state, switching the mode of the working mode of the generator when detecting that the clutch attaching state is the attaching completion, and transferring the torque of the generator after the mode switching to the driving motor.
2. The hybrid vehicle-entering parallel control method according to claim 1, wherein the step of "controlling the engine speed to adjust to the target engine speed" comprises the following steps:
and controlling the rotating speed of the engine to synchronously match the rotating speed according to the rotating speed at the rear end of the clutch, and adjusting the rotating speed to be the target rotating speed of the engine through a generator controller.
3. The hybrid vehicle-entering parallel control method according to claim 1, wherein before the step of controlling the clutch to be engaged and enabling the front end of the clutch to have no torque when the torque at the flywheel end of the engine is adjusted to the preset torque is detected, the method specifically comprises the following steps:
controlling a difference between the engine speed and the engine target speed within a preset range.
4. The hybrid vehicle-entering parallel control method according to claim 1, wherein the step of switching the operating modes of the generators specifically comprises the steps of:
and controlling the generator to be switched from a rotating speed control mode to a torque control mode.
5. The hybrid vehicle-entering parallel control method according to claim 1, wherein the step of controlling the vehicle to enter the parallel driving mode when the vehicle is detected to meet the preset condition of entering parallel connection comprises the following steps:
acquiring real-time vehicle speed and real-time energy consumption;
and when the real-time vehicle speed is detected to be greater than the preset vehicle speed and the real-time energy consumption is detected to be greater than the preset critical energy consumption, controlling the vehicle to enter a parallel driving mode.
6. A vehicle control unit, comprising:
the parallel mode entering module is used for controlling the vehicle to enter a parallel driving mode when the vehicle speed is detected to meet a preset condition;
the engine data adjusting module and the parallel mode entering module are used for controlling the torque of the engine to be adjusted to the target torque of the engine, controlling the rotating speed of the engine to be adjusted to the target rotating speed of the engine, and controlling the torque of the flywheel end of the engine to be adjusted to the torque of the target flywheel end;
the clutch attaching module is in communication connection with the engine data adjusting module and is used for controlling the attachment of the clutch and enabling the front end of the clutch to have no torque after the torque of the flywheel end of the engine is adjusted to be the preset torque;
and the torque transfer module is in communication connection with the clutch fitting module and is used for acquiring the fitting state of the clutch, switching the mode of the working mode of the generator when the fitting state of the clutch is detected to be the fitting completion, and transferring the torque of the generator after mode switching to the driving motor.
7. The vehicle control unit according to claim 6, wherein the engine data adjusting module is configured to control the engine speed to perform speed synchronization matching according to the rear-end speed of the clutch and adjust the engine speed to a target engine speed.
8. The vehicle control unit of claim 6, wherein the engine data adjustment module is configured to control a difference between the engine speed and the engine target speed to be within a predetermined range.
9. The vehicle control unit of claim 6, wherein the torque transfer module is configured to control the generator to transition from a speed control mode to a torque control mode.
10. A hybrid vehicle-to-parallel control system, comprising:
the vehicle control unit according to claim 6, configured to issue a control instruction for regulating each subsystem;
the generator subsystem comprises a generator controller in communication connection with the vehicle control unit and a generator in communication connection with the generator controller, and the generator controller is used for controlling and adjusting the generator according to a control instruction sent by the vehicle control unit;
the engine subsystem comprises an engine controller in communication connection with the vehicle control unit and an engine in communication connection with the engine controller, and the engine controller is used for controlling and adjusting the engine according to a control command sent by the vehicle control unit;
the clutch subsystem comprises a clutch controller in communication connection with the vehicle controller and a clutch in communication connection with the clutch controller, and the clutch controller is used for controlling and adjusting the clutch according to a control command sent by the vehicle controller;
and the driving motor subsystem comprises a driving motor controller in communication connection with the vehicle control unit and a driving motor in communication connection with the driving motor controller, and the driving motor controller is used for controlling and adjusting the driving motor according to a control instruction sent by the vehicle control unit.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116620258A (en) * | 2023-07-24 | 2023-08-22 | 成都赛力斯科技有限公司 | Torque switching control method and device applied to emergency braking |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116620258A (en) * | 2023-07-24 | 2023-08-22 | 成都赛力斯科技有限公司 | Torque switching control method and device applied to emergency braking |
| CN116620258B (en) * | 2023-07-24 | 2023-09-22 | 成都赛力斯科技有限公司 | Torque switching control method and device applied to emergency braking |
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