CN113147721B

CN113147721B - Method and device for controlling engine starting, electronic equipment and storage medium

Info

Publication number: CN113147721B
Application number: CN202110585923.8A
Authority: CN
Inventors: 伍庆龙; 张天强; 杨钫; 王燕
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2023-03-07
Anticipated expiration: 2041-05-27
Also published as: WO2022247274A1; CN113147721A

Abstract

The invention discloses a method and a device for controlling starting of an engine, electronic equipment and a storage medium, and belongs to the technical field of vehicle control. Determining the required torque according to the current vehicle speed and the stroke of an accelerator pedal; determining the maximum available driving torque of the motor according to the working parameters of the motor, the working parameters of the battery, the reserved torque of the motor and the ideal available driving torque of the motor; and determining whether to control the engine to start or not according to the required torque and the maximum available driving torque. Through the technical scheme, the engine can be effectively controlled to start under the working conditions of overtaking or urgent acceleration, and the driving requirements of users are further met.

Description

Method and device for controlling engine starting, electronic equipment and storage medium

Technical Field

The embodiment of the invention relates to the technical field of vehicle control, in particular to a method and a device for controlling starting of an engine, electronic equipment and a storage medium.

Background

Compared with the traditional vehicle, the hybrid vehicle has the advantages that the motor and the power battery are added, so that the traditional starter is not needed in the starting and stopping process of the engine, and the battery and the motor can be used for realizing more excellent starting and stopping performance.

However, in the prior art, in the process of starting and stopping the engine, how to effectively control the starting of the engine under the overtaking or quick acceleration condition, namely the overtaking or the acceleration within a short time required by a user, is not considered, and improvement is needed.

Disclosure of Invention

The invention provides a method and a device for controlling engine starting, electronic equipment and a storage medium, which are used for effectively controlling the engine starting under the working condition of overtaking or sudden acceleration and meeting the driving requirements of users.

In a first aspect, an embodiment of the present invention provides a method for controlling engine starting, including:

determining a required torque according to the current vehicle speed and the stroke of an accelerator pedal;

determining the maximum available driving torque of the motor according to the working parameters of the motor, the working parameters of the battery, the reserved torque of the motor and the ideal available driving torque of the motor;

determining whether to control engine starting based on the requested torque and the maximum available drive torque.

In a second aspect, an embodiment of the present invention further provides an apparatus for controlling an engine start, including:

the required torque determining module is used for determining required torque according to the current vehicle speed and the stroke of an accelerator pedal;

the available driving torque determining module is used for determining the maximum available driving torque of the motor according to the working parameters of the motor, the working parameters of the battery, the reserved torque of the motor and the ideal available driving torque of the motor;

a control module determines whether to control engine starting based on the requested torque and the maximum available drive torque.

In a third aspect, an embodiment of the present invention further provides an electronic device, including:

one or more processors;

a memory for storing one or more programs;

when executed by the one or more processors, the one or more programs cause the one or more processors to implement a method of controlling engine starting as provided in any embodiment of the invention.

In a fourth aspect, the embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the method for controlling engine starting according to any of the embodiments of the present invention.

According to the technical scheme of the embodiment of the invention, the required torque is determined according to the current vehicle speed and the stroke of the accelerator pedal, then the maximum available driving torque of the motor is determined according to the working parameters of the motor, the working parameters of the battery, the reserved torque of the motor and the ideal available driving torque of the motor, and further whether the engine is controlled to start is determined according to the required torque and the maximum available driving torque. Through the technical scheme, the engine can be effectively controlled to start under the working conditions of overtaking or sudden acceleration, and the driving requirements of users are further met.

Drawings

FIG. 1 is a flow chart of a method for controlling engine starting according to one embodiment of the present invention;

FIG. 2 is a flowchart of a method for controlling engine starting according to a second embodiment of the present invention;

FIG. 3 is a diagram illustrating the result of controlling an engine starting apparatus according to a third embodiment of the present invention;

fig. 4 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be further noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings, not all of them.

Example one

FIG. 1 is a flow chart of a method for controlling engine starting according to one embodiment of the present invention; the embodiment can be applied to the situation that the hybrid electric vehicle controls the starting of the engine when overtaking or accelerating in a short time; the hybrid power system of the hybrid electric vehicle mainly comprises an engine, a motor, a power battery, a gearbox, a first clutch C0, a second clutch C1, a driving shaft and the like; one side of the motor is connected with the engine through a first clutch C0 and can be used for starting the engine, assisting the motor of a power system, and performing combined driving and energy recovery; the other side of the motor is connected with the gearbox through a second clutch C1, and further, the gearbox and the second clutch C1 can be integrally developed; each component is controlled by a respective controller, for example, a Motor Controller (MCU) controls a Motor, an Engine Management System (EMS) controls an Engine, a Battery Management System (BMS) controls a rechargeable Battery, and a Hybrid Control Unit (HCU) cooperatively controls each power source to realize start-up Control of the Engine. Alternatively, the method may be performed by an apparatus for controlling engine starting, which may be implemented by software and/or hardware, and may be integrated into an electronic device carrying a function of controlling engine starting, such as a Hybrid Control Unit (HCU) in a vehicle.

As shown in fig. 1, the method may specifically include:

and S110, determining the required torque according to the current vehicle speed and the stroke of the accelerator pedal.

The current vehicle speed refers to the vehicle speed of the vehicle at the current moment. The accelerator pedal is also called an accelerator pedal and is a part of an automobile fuel supply system; the opening of the throttle valve of the engine is controlled by controlling the treading amount of the engine, so that the air inflow is controlled, and the oil amount is controlled by a computer, so that the rotating speed of the engine is controlled. The stroke of the accelerator pedal is the amount of depression of the accelerator pedal, and can be expressed in percentage.

The required torque is a torque required when the vehicle reaches the current vehicle speed.

In this embodiment, the required torque may be obtained based on a two-dimensional relationship curve of the current vehicle speed and the stroke calibration of the accelerator pedal. The two-dimensional relation curve is determined based on different vehicle speeds and strokes of the accelerator pedal through a large number of experiments before the vehicle leaves a factory, the independent variable of the curve function is the vehicle speed and the stroke of the accelerator pedal, and the dependent variable is the required torque.

And S120, determining the maximum available driving torque of the motor according to the working parameters of the motor, the working parameters of the battery, the reserved torque of the motor and the ideal available driving torque of the motor.

The motor working parameters refer to parameters such as rotating speed, torque and power when the motor works; the battery operating parameters refer to parameters such as voltage and current when the battery operates. The reserved torque of the motor is the torque which must be reserved for ensuring the normal running of the vehicle, and can be stored in the HCU in advance.

The ideal available driving torque of the electric machine refers to the maximum torque that the electric machine in the hybrid vehicle can output when running in pure electric mode. Alternatively, the ideal available driving torque may be calibrated before the hybrid vehicle leaves the factory, and the ideal available driving torque may be determined by looking up a table in actual use. Further, the ideal available driving torque of the motor can be determined according to the maximum available torque of the motor and the using torque of the electric appliance, specifically, the difference is made between the maximum available torque and the using torque of the electric appliance, and the difference result is used as the ideal available driving torque of the motor; the torque used by the electric appliance is obtained by quotient of the power used by the electric appliance and the rotating speed of the motor.

By maximum available drive torque of the electric machine is meant the maximum torque that the electric machine can provide to the outside.

In this embodiment, before the hybrid vehicle leaves a factory, the correlation between the motor operating parameter, the battery operating parameter, the reserved torque of the motor, the ideal available driving torque of the motor, and the maximum available driving torque of the motor is determined through a large number of experiments, and a maximum available driving torque table is constructed. Furthermore, in the using process of the hybrid electric vehicle, the vehicle control unit HCU of the hybrid electric vehicle receives the motor working parameters sent by the MCU and the battery working parameters sent by the BMS according to the current moment, and determines the maximum available driving torque of the motor by inquiring the maximum available driving torque table according to the motor working parameters, the battery working parameters, the reserved torque of the motor and the ideal available driving torque of the motor.

And S130, determining whether to control the engine to start or not according to the required torque and the maximum available driving torque.

In this embodiment, if the required torque is greater than the maximum available drive torque, the engine start is controlled. Specifically, the HCU sends a startup command to the EMS, and the EMS controls the engine to start.

In order to prevent the engine from being started and stopped frequently, optionally, if the required torque is greater than the maximum available driving torque and the duration is greater than the set duration, the engine is controlled to be started, specifically, the HCU sends a start instruction to the EMS, and the EMS controls the engine to be started. Wherein the duration refers to a duration in which the required torque continues to be greater than the maximum available drive torque; the set time period is set by a person skilled in the art according to actual conditions.

Optionally, if the required torque is smaller than the difference between the maximum available driving torque and the torque hysteresis and the duration is smaller than the stop confirmation duration, the engine is controlled to stop, specifically, the HCU sends a stop instruction to the EMS, and the EMS controls the engine to stop. Wherein the torque hysteresis is used to prevent frequent switching around the maximum available drive torque. The shutdown confirmation time period is set by a person skilled in the art according to actual conditions.

It can be understood that frequent start and stop of the engine caused by short-time misoperation can be avoided by introducing a set time length, a stop confirmation time length and a torque hysteresis loop.

The specific flow of controlling the engine start is as follows:

s1, the HCU controls the torque of the output shaft of the gearbox to be adjusted to the required torque, and coordinates with a Transmission Control Unit (TCU) to Control the first clutch C0 to be opened and Control the second clutch C1 to be closed.

S2, the HCU sends a first torque lifting instruction to the MCU to instruct the MCU to control the motor to lift torque so that the rotating speed of the motor reaches a target rotating speed; the target rotating speed is the rotating speed required by the ignition starting of the engine, and the target rotating speeds of engines of different models are different.

S3, the HCU sends a torque control instruction to the TCU to instruct the TCU to control the first clutch to increase torque and control the second clutch to reduce torque, so that the first clutch and the second clutch are in a slip state; the first clutch is connected with one side of the engine and the motor, and the second clutch is connected with the other side of the input shaft of the gearbox and the motor.

And S4, the HCU sends a second torque lifting instruction to the motor controller MCU so as to instruct the motor controller MCU to control the motor rotating speed to maintain the target rotating speed and enable the motor to drag the engine to lift the rotating speed of the engine.

And S5, if the rotating speed of the engine reaches the target rotating speed, the HCU sends a starting instruction to the engine management system so that the engine management system controls the engine to start.

And S6, after the engine is started successfully, namely ignition is successfully performed, the TCU controls the first clutch C0 to be opened, the MCU controls the motor to start to reduce torque, the EMS controls the engine to continuously rise and adopt rotation speed control after the engine reaches a stable rotation speed, and the TCU controls the first clutch C0 to be closed after the engine and the motor rotate speed are synchronized.

And S7, the EMS controls the torque 0 output of the engine, the MCU controls the motor to control the rotating speed, and after the motor realizes the rotating speed synchronization with the input shaft of the gearbox, the TCU controls the second clutch C1 to be closed.

And S8, the EMS continuously controls the engine to lift the torque, the MCU controls the motor to reduce the torque, the power source torque alternation is realized, and the starting process of the engine is finished.

On the basis of the above embodiment, a congestion condition in an urban area can be considered, after a long period of stop and go (a motor is used as a main driving mode), deep discharge (more energy consumption) is performed on a battery, and in order to avoid the problem that the motor cannot be powered to start the engine after the stop because the battery is over-discharged, as an optional mode of the embodiment of the invention, the required power can be determined according to the current vehicle speed, the stroke of an accelerator pedal and the state of a power source. The power source state refers to states of a battery, a motor, and an engine.

Specifically, before the hybrid vehicle leaves a factory, correlation relations among different vehicle speeds, strokes of accelerator pedals, power source states and required power are determined through a large number of experiments, and a required power meter is constructed. And then, in the using process of the hybrid vehicle, according to the current vehicle speed, the stroke of an accelerator pedal and the power source state, the required power is determined by inquiring a required power meter.

Optionally, if the amount of remaining charge in the power battery is lower than a preset value and the required power is greater than a starting power threshold value, controlling the engine to start. Wherein, the preset value is set by the person skilled in the art according to the actual situation. The starting power threshold value refers to power required when the engine is started, and the starting power threshold values of engines of different models are different.

Optionally, if the residual charge amount in the power battery is lower than the preset value, the required power is greater than the starting power threshold value, and the duration is greater than the set duration, the engine is controlled to start. Wherein, the preset value is set by the person skilled in the art according to the actual situation. It will be appreciated that introducing a set length of time may avoid frequent engine starting operations.

Example two

FIG. 2 is a flowchart of a method for controlling engine starting according to a second embodiment of the present invention; on the basis of the above embodiment, an optional implementation scheme is provided for optimizing the determination of the maximum available drive torque of the motor according to the motor operating parameters, the battery operating parameters, the reserved torque of the motor and the ideal available drive torque of the motor.

As shown in fig. 2, the method may specifically include:

and S210, determining the required torque according to the current vehicle speed and the stroke of the accelerator pedal.

And S220, determining the actual available driving torque of the motor according to the working parameters of the motor, the working parameters of the battery and the reserved torque of the motor.

The actual available driving torque refers to the maximum driving torque which can be provided by the motor except the reserved torque.

In this embodiment, first, the maximum available torque of the motor may be determined according to the motor operating parameter and the battery operating parameter. Specifically, before the hybrid vehicle leaves a factory, a large number of experiments are performed based on different motor working parameters and battery working parameters, and the incidence relation between the motor working parameters and the battery working parameters and the maximum available torque of the motor is determined to obtain a maximum available torque table. In the actual operation of the hybrid vehicle, the vehicle control unit HCU receives the motor parameters sent by the motor control unit MCU, receives the battery parameters sent by the battery management system BMS, and obtains the maximum available driving torque of the motor through table lookup.

Secondly, the reserved torque of the motor is determined according to the current driving mode and the starting resistance of the engine. The reserved torque comprises a starting reserved torque and a performance reserved torque, the starting reserved torque is a torque reserved for the engine to offset resistance when the engine is started, the starting reserved torques required by engines of different types are different, and specifically, through a large number of experiments, the starting reserved torque is set for the engine according to the starting resistance of the engine; the performance reserve torque refers to a torque reserved for maintaining good drivability, and performance reserve torques in different driving modes are different and are set by those skilled in the art according to actual situations. Specifically, in the actual operation of the vehicle, according to the current driving mode, the performance reserved torque corresponding to the current mode is determined through table lookup. And then, the result of summing the starting reserved torque and the performance reserved torque is used as the reserved torque of the motor.

Thirdly, the actual available driving torque of the motor is determined according to the maximum available torque and the reserved torque of the motor. Specifically, the maximum available torque of the motor is differentiated from the reserved torque, and the differentiated result is used as the actual available driving torque of the motor.

And S230, determining the maximum available driving torque of the motor according to the ideal available driving torque of the motor and the actual available driving torque of the motor.

In this embodiment, if the ideal available driving torque of the motor is greater than the actual available driving torque of the motor, the actual available driving torque of the motor is used as the maximum available driving torque of the motor. And if the ideal available driving torque of the motor is smaller than the actual available driving torque of the motor, taking the ideal available driving torque of the motor as the maximum available driving torque of the motor.

And S240, determining whether to control the engine to start or not according to the required torque and the maximum available driving torque.

According to the technical scheme of the embodiment of the invention, the required torque is determined according to the current vehicle speed and the stroke of the accelerator pedal, then the actual available driving torque of the motor is determined according to the working parameters of the motor, the working parameters of the battery and the reserved torque of the motor, the maximum available driving torque of the motor is further determined according to the ideal available driving torque of the motor and the actual available driving torque of the motor, and whether to control the starting of the engine is determined according to the required torque and the maximum available driving torque. Through the technical scheme, the engine can be effectively controlled to start under the working conditions of overtaking or urgent acceleration, and the driving requirements of users are further met.

EXAMPLE III

FIG. 3 is a diagram illustrating the result of controlling an engine starting apparatus according to a third embodiment of the present invention; the present embodiment is applicable to the case where the Hybrid vehicle controls the engine start when overtaking or accelerating in a short time, and the apparatus may be implemented by software and/or hardware, and may be integrated in an electronic device that carries a function of controlling the engine start, for example, in a Hybrid Control Unit (HCU) in the vehicle.

As shown in fig. 3, the apparatus includes a requested torque determination module 310, an available drive torque determination module 320, and a control module 330, wherein,

a required torque determination module 310 for determining a required torque according to a current vehicle speed and a stroke of an accelerator pedal;

the available driving torque determining module 320 is configured to determine a maximum available driving torque of the motor according to the motor operating parameter, the battery operating parameter, the reserved torque of the motor, and the ideal available driving torque of the motor;

the control module 330 determines whether to control engine starting based on the requested torque and the maximum available drive torque.

According to the technical scheme of the embodiment of the invention, the required torque is determined according to the current vehicle speed and the stroke of the accelerator pedal, then the maximum available driving torque of the motor is determined according to the working parameters of the motor, the working parameters of the battery, the reserved torque of the motor and the ideal available driving torque of the motor, and further whether the engine is controlled to start is determined according to the required torque and the maximum available driving torque. Through the technical scheme, the engine can be effectively controlled to start under the working conditions of overtaking or urgent acceleration, and the driving requirements of users are further met.

Further, the available drive torque determination module 320 includes an actual drive torque determination unit and an available drive torque determination unit, wherein,

the actual driving torque determining unit is used for determining the actual available driving torque of the motor according to the working parameters of the motor, the working parameters of the battery and the reserved torque of the motor;

and the available driving torque determining unit is used for determining the maximum available driving torque of the motor according to the ideal available driving torque of the motor and the actual available driving torque of the motor.

Further, the actual driving torque determination unit includes a maximum torque determination subunit, a reserve torque determination subunit, and an actual driving torque determination subunit, wherein,

the maximum torque determining subunit is used for determining the maximum available torque of the motor according to the motor working parameters and the battery working parameters;

the reserved torque determining subunit is used for determining reserved torque of the motor according to the current driving mode and the starting resistance of the engine;

and the actual driving torque determining subunit is used for determining the actual available driving torque of the motor according to the maximum available torque and the reserved torque of the motor.

Further, the control module 330 is specifically configured to:

and if the required torque is larger than the maximum available driving torque, controlling the engine to start.

Further, the control module 330 is further specifically configured to:

and if the required torque is larger than the maximum available driving torque and the duration is larger than the set duration, controlling the engine to start.

Further, the apparatus also includes an engine starting module, the engine starting module specifically configured to:

sending a first torque lifting instruction to a motor controller to instruct the motor controller to control a motor to lift torque so that the rotating speed of the motor reaches a target rotating speed;

sending a torque control instruction to an automatic gearbox control unit to instruct the automatic gearbox control unit to control a first clutch to increase torque and control a second clutch to reduce torque so that the first clutch and the second clutch are in a slipping state; the first clutch is connected with one side of the engine and the motor, and the second clutch is connected with the input shaft of the gearbox and the other side of the motor;

sending a second torque lifting instruction to the motor controller to instruct the motor controller to control the rotating speed of the motor to maintain the target rotating speed and enable the motor to drag the engine to lift the rotating speed of the engine;

and if the rotating speed of the engine reaches the target rotating speed, sending a starting instruction to the engine management system so that the engine management system controls the engine to start.

The engine starting control device can execute the engine starting control method provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.

Example four

Fig. 4 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present invention, and fig. 4 shows a block diagram of an exemplary device suitable for implementing the embodiment of the present invention. The device shown in fig. 4 is only an example and should not bring any limitation to the function and the scope of use of the embodiments of the present invention.

As shown in FIG. 4, electronic device 12 is embodied in the form of a general purpose computing device. The components of the electronic device 12 may include, but are not limited to: one or more processors or processing units 16, a system memory 28, and a bus 18 that couples various system components including the system memory 28 and the processing unit 16.

Bus 18 represents one or more of any of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, and a processor or local bus using any of a variety of bus architectures. By way of example, such architectures include, but are not limited to, industry Standard Architecture (ISA) bus, micro-channel architecture (MAC) bus, enhanced ISA bus, video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnect (PCI) bus.

Electronic device 12 typically includes a variety of computer system readable media. Such media may be any available media that is accessible by electronic device 12 and includes both volatile and nonvolatile media, removable and non-removable media.

The system memory 28 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM) 30 and/or cache memory 32. The electronic device 12 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 34 may be used to read from and write to non-removable, nonvolatile magnetic media (not shown in FIG. 4, and commonly referred to as a "hard drive"). Although not shown in FIG. 4, a magnetic disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 18 by one or more data media interfaces. System memory 28 may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the invention.

A program/utility 40 having a set (at least one) of program modules 42 may be stored, for example, in system memory 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. Program modules 42 generally carry out the functions and/or methodologies of embodiments described herein.

Electronic device 12 may also communicate with one or more external devices 14 (e.g., keyboard, pointing device, display 24, etc.), with one or more devices that enable a user to interact with electronic device 12, and/or with any devices (e.g., network card, modem, etc.) that enable electronic device 12 to communicate with one or more other computing devices. Such communication may be through an input/output (I/O) interface 22. Also, the electronic device 12 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet) via the network adapter 20. As shown, the network adapter 20 communicates with other modules of the electronic device 12 via the bus 18. It should be understood that although not shown in the figures, other hardware and/or software modules may be used in conjunction with electronic device 12, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, among others.

The processing unit 16 executes various functional applications and data processing, such as implementing a method of controlling engine starting provided by an embodiment of the present invention, by running a program stored in the system memory 28.

EXAMPLE five

Fifth embodiment of the present invention further provides a computer-readable storage medium, on which a computer program (or referred to as computer-executable instructions) is stored, where the computer program is used for executing, when executed by a processor, the method for controlling engine starting provided by the fifth embodiment of the present invention, where the method includes:

it is determined whether to control the engine start based on the required torque and the maximum available drive torque.

Computer storage media for embodiments of the present invention may take the form of any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Computer program code for carrying out operations for embodiments of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, smalltalk, C + +, and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).

It is to be noted that the foregoing description is only exemplary of the invention and that the principles of the technology may be employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the embodiments of the present invention have been described in more detail through the above embodiments, the embodiments of the present invention are not limited to the above embodiments, and many other equivalent embodiments may be included without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A method of controlling engine starting, comprising:

determining the required torque according to the current vehicle speed and the stroke of an accelerator pedal;

determining the actual available driving torque of the motor according to the working parameters of the motor, the working parameters of the battery and the reserved torque of the motor;

determining the maximum available driving torque of the motor according to the ideal available driving torque of the motor and the actual available driving torque of the motor;

determining whether to control engine starting based on the requested torque and the maximum available drive torque, comprising: if the required torque is larger than the maximum available driving torque and the duration is longer than a set duration, controlling the engine to start; the required torque refers to a torque required when the vehicle reaches the current vehicle speed.

2. The method of claim 1, wherein determining an actual available drive torque of the electric machine based on the electric machine operating parameter, the battery operating parameter, and a reserved torque of the electric machine comprises:

determining the maximum available torque of the motor according to the motor working parameters and the battery working parameters;

determining reserved torque of the motor according to the current driving mode and starting resistance of an engine;

and determining the actual available driving torque of the motor according to the maximum available torque and the reserved torque of the motor.

3. The method of claim 1, wherein said determining whether to control engine starting based on said requested torque and said maximum available drive torque comprises:

4. The method of claim 1, further comprising:

sending a first torque lifting instruction to a motor controller to instruct the motor controller to control the motor to lift torque so that the rotating speed of the motor reaches a target rotating speed;

sending a torque control instruction to an automatic gearbox control unit to instruct the automatic gearbox control unit to control a first clutch to increase torque and control a second clutch to reduce torque so that the first clutch and the second clutch are in a slip state; the first clutch is connected with one side of an engine and a motor, and the second clutch is connected with the other side of a transmission input shaft and the motor;

sending a second torque lifting instruction to a motor controller to instruct the motor controller to control the rotating speed of the motor to maintain a target rotating speed and enable the motor to drag the engine to lift the rotating speed of the engine;

and if the rotating speed of the engine reaches the target rotating speed, sending a starting instruction to an engine management system so that the engine management system controls the engine to start.

5. An apparatus for controlling an engine start, comprising:

an available drive torque determination module comprising:

the actual driving torque determining unit is used for determining the actual available driving torque of the motor according to the motor working parameters, the battery working parameters and the reserved torque of the motor;

an available driving torque determination unit for determining a maximum available driving torque of the motor according to an ideal available driving torque of the motor and an actual available driving torque of the motor;

the control module is used for controlling the engine to start if the required torque is larger than the maximum available driving torque and the duration is longer than a set duration; the required torque refers to a torque required when the vehicle reaches the current vehicle speed.

6. An electronic device, comprising:

one or more processors;

a memory for storing one or more programs;

when executed by the one or more processors, cause the one or more processors to implement the method of controlling engine starting of any of claims 1-4.

7. A computer-readable storage medium, on which a computer program is stored, which program, when executed by a processor, carries out the method of controlling engine starting according to any one of claims 1-4.