CN116443010A

CN116443010A - Vehicle ejection starting control method, device, equipment and medium

Info

Publication number: CN116443010A
Application number: CN202310638953.XA
Authority: CN
Inventors: 宁甲奎; 朱桂庆; 孙飞
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2023-05-31
Filing date: 2023-05-31
Publication date: 2023-07-18

Abstract

The invention discloses a vehicle ejection starting control method, device, equipment and medium. In response to the ejection starting operation of simultaneously stepping on the accelerator and the brake by the driver, controlling the output torque of the engine to rise from the initial torque to the preset maximum torque, and acquiring the first engine torque actually output by the engine in the rising process; determining a first required torque based on the first engine torque and a maximum bearing torque of the clutch, and controlling the motor to operate according to the first required torque; controlling the output torque of the engine based on a preset maximum torque in response to a brake release operation of a driver, and acquiring a second engine torque actually output by the engine; based on the second engine torque, the maximum bearing torque of the clutch and the maximum bearing torque of the transmission, the second required torque is determined, and the motor is controlled to operate according to the second motor required torque, so that the power performance of the vehicle is improved while the clutch is prevented from being worn during ejection starting, and the use experience of a user is improved.

Description

Vehicle ejection starting control method, device, equipment and medium

Technical Field

The present invention relates to the field of vehicle control technologies, and in particular, to a method, an apparatus, a device, and a medium for controlling launch of a vehicle.

Background

Launch starting can be understood as: the driver is at rest while stepping on both the brake and the throttle, at which time the transmission input torque may be increased to a higher level. When the driver releases the brake, the vehicle starts with a larger initial torque, and a larger acceleration can be obtained. When the brake and the accelerator are simultaneously stepped on for a long time, the torque of the clutch in the transmission is overlarge, so that the skid mill is larger, the generated heat can be increased rapidly, the temperature of the clutch is increased rapidly, and the clutch can be ablated under severe conditions.

At present, in order to avoid ablating the clutch, the existing ejection starting control mode is as follows: the torque value of the power source is adjusted according to the time that the vehicle is in a quick starting state, for example, the torque values of an engine and a motor can be adjusted, so that the input torque of the transmission is limited in a grading manner, and the damage to a clutch caused by overlarge clutch torque in the transmission is avoided. However, the existing launch control method can limit the transmission input torque when the brake and the accelerator are simultaneously stepped on, and the transmission input torque is provided by the output torque of the power source, so that the output torque of the power source is greatly limited, and the dynamic performance of the vehicle is poor.

Disclosure of Invention

The embodiment of the invention provides a vehicle ejection starting control method, device, equipment and medium, which are used for avoiding wearing a clutch during ejection starting, improving the dynamic property of the vehicle and improving the use experience of a user.

In a first aspect, the present invention provides a method for controlling launch of a vehicle, the method comprising:

in response to the ejection starting operation of simultaneously stepping on the accelerator and the brake by the driver, controlling the output torque of the engine to rise from the initial torque to the preset maximum torque, and acquiring the first engine torque actually output by the engine in the rising process;

determining a first required torque corresponding to a motor based on the first engine torque and the maximum bearing torque of a clutch, and controlling the motor to operate according to the first required torque;

controlling the output torque of the engine based on the preset maximum torque in response to the brake release operation of the driver, and acquiring the second engine torque actually output by the engine;

and determining a second required torque corresponding to the motor based on the second engine torque, the maximum bearing torque of the clutch and the maximum bearing torque of the transmission, and controlling the motor to operate according to the second motor required torque.

In a second aspect, the present invention provides an ejection start control device for a vehicle, the device comprising:

the engine maximum torque rising module is used for responding to the ejection starting operation of simultaneously stepping on the accelerator and the brake by the driver, controlling the output torque of the engine to rise from the initial torque to the preset maximum torque, and obtaining the first engine torque actually output by the engine in the rising process;

the first torque determining module of the motor is used for determining a first required torque corresponding to the motor based on the first engine torque and the maximum bearing torque of the clutch, and controlling the motor to operate according to the first required torque;

an engine torque obtaining module, configured to control an output torque of an engine based on the preset maximum torque in response to a brake release operation of the driver, and obtain a second engine torque actually output by the engine;

and the motor first torque determining module is used for determining a second required torque corresponding to the motor based on the second engine torque, the maximum bearing torque of the clutch and the maximum bearing torque of the transmission, and controlling the motor to run according to the second motor required torque.

In a third aspect, the present invention provides an electronic device, comprising:

at least one processor; and

a memory communicatively coupled to the at least one processor; wherein, the liquid crystal display device comprises a liquid crystal display device,

the memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the launch control method of the vehicle of any one of the embodiments of the present invention.

In a fourth aspect, the present invention provides a computer readable storage medium storing computer instructions for causing a processor to execute the launch control method of a vehicle according to any one of the embodiments of the present invention.

According to the technical scheme provided by the embodiment of the invention, in the first stage of ejection starting, the output torque of the engine is controlled to rise from the initial torque to the preset maximum torque through the ejection starting operation of simultaneously stepping on the accelerator and the brake by the driver, and the first engine torque actually output by the engine in the rising process is obtained, so that the first required torque corresponding to the motor is determined based on the first engine torque and the maximum bearing torque of the clutch, the motor is controlled to operate according to the first required torque, the sum of the output torque of the engine and the output torque of the motor is not more than the maximum bearing torque of the clutch all the time, and the effect of avoiding transitional wear of the clutch can be achieved. In the second stage of the ejection start, in response to a brake release operation of a driver, the output torque of the engine is controlled based on the preset maximum torque, and the second engine torque actually output by the engine is obtained. And further, based on the second engine torque, the maximum bearing torque of the clutch and the maximum bearing torque of the transmission, the second required torque corresponding to the motor is determined, the motor is controlled to operate according to the second motor required torque, the advantage of high response speed of the motor torque is utilized, the motor torque is rapidly improved, so that the input torque of the transmission can be rapidly improved, and the rapid starting of the whole vehicle is realized. According to the embodiment of the invention, the technical problem that the dynamic performance of the vehicle is poor in the ejection starting process is solved, the clutch is prevented from being worn in the ejection starting process, the dynamic performance of the vehicle is improved, and the use experience of a user is improved.

It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the invention or to delineate the scope of the invention. Other features of the present invention will become apparent from the description that follows.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a flowchart of a vehicle launch control method according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a vehicle launch control process according to a first embodiment of the present invention;

fig. 3 is a flowchart of a method for controlling ejection start of a vehicle according to a second embodiment of the present invention;

fig. 4 is a schematic structural diagram of an ejection starting control device for a vehicle according to a third embodiment of the present invention;

fig. 5 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present invention.

Detailed Description

In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

It should be noted that, in the description and claims of the present invention and the above figures, the terms "first preset condition", "second preset condition", and the like are used to distinguish similar objects, and are not necessarily used to describe a specific order or precedence. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Example 1

Fig. 1 is a flowchart of a vehicle launch control method according to a first embodiment of the present invention, where the present embodiment is applicable to controlling vehicle launch and improving vehicle launch dynamics. The method can be performed by an ejection start control device of the vehicle, the device can be realized in a form of hardware and/or software, and the device can be configured on computer equipment, and the computer equipment can be a notebook computer, a desktop computer, a smart tablet and the like. As shown in fig. 1, the method includes:

and S110, in response to the ejection starting operation of simultaneously stepping on the accelerator and the brake by the driver, controlling the output torque of the engine to rise from the initial torque to the preset maximum torque, and acquiring the first engine torque actually output by the engine in the rising process.

The initial torque is the torque output when the engine just starts to run. The preset maximum torque is the maximum torque that the engine can output. The maximum engine torque is related to the engine characteristics, and the maximum engine output torque is generally achieved by adjusting the engine intake air amount and fuel injection. The first engine torque is the torque actually output by the engine, which is acquired in real time during the running process of the engine. The first engine torque may be understood as the torque value of the engine output at the present moment. The first engine torque may be calculated by the engine control unit based on the current intake air amount, the fuel injection amount, the ignition advance angle, and the like.

Specifically, the driver may simultaneously step on the brake and the accelerator in a stationary state of the vehicle, and at this time, the output torque of the engine may be controlled to rise from the initial torque to the preset maximum torque. In the process of controlling the engine to increase the output torque, the first engine torque actually output by the engine is obtained in real time.

Fig. 2 is a schematic diagram illustrating a vehicle launch control process according to an embodiment of the present invention. The lowest solid line in fig. 2 is a brake pressure trace of the brake pressure with time, the linear broken line is an accelerator opening trace of the accelerator opening with time, and the dotted line is an engine torque trace of the engine torque with time. At T ₀ At the moment, the driver simultaneously steps on the brake and the accelerator, at the moment, the opening of the accelerator is increased to 100%, and the brake pressure is increased to exceed a preset threshold value. The output torque of the engine is T ₀ At time zero, the output torque of the engine rises from zero to the initial torque of the engine over a relatively short period of time, which is negligible. After the engine output torque reaches the initial torque and is maintained for a preset period of time, the engine output torque is controlled to gradually rise from the initial engine torque to T ₁ The preset maximum torque at the moment. And in the process, the first engine torque actually output by the engine is obtained in real time.

And S120, determining a first required torque corresponding to the motor based on the first engine torque and the maximum bearing torque of the clutch, and controlling the motor to operate according to the first required torque.

The maximum bearing torque of the clutch is obtained through calibration, is based on the hardware capacity of the clutch in the transmission and is obtained by combining a bench test, and is generally 100-400 Nm. For example, the maximum torque applied to the clutch is calibrated to 300Nm.

Specifically, the maximum bearing torque of the clutch is a calibrated amount, and may be stored in advance. And when the first required torque corresponding to the motor is determined, the maximum bearing torque of the clutch is directly obtained. The first engine torque is a real-time acquired amount, and can be acquired every a preset time period when the first engine torque is specifically implemented, so that the first required torque corresponding to each first engine torque acquired is determined. And after the first required torque corresponding to the motor is obtained, controlling the motor to operate according to the first required torque.

Optionally, the specific implementation manner of determining the first required torque is: the difference between the maximum torque capacity of the clutch and the first engine torque is determined as a first required torque corresponding to the motor.

For example, the first requested torque may be expressed as: first required torque = maximum accepted torque of clutch-first engine torque. As shown in fig. 2, from the time Ts, the engine output torque gradually rises from the initial torque to the preset maximum torque to T ₁ The engine output torque reaches a preset maximum torque at a moment in time, during which the first engine torque is gradually increased. And the first required torque is the difference between the maximum torque received by the calibrated clutch and the first engine torque, so the first required torque is gradually reduced.

In this embodiment, the engine and the motor are power sources of the vehicle, the sum of the engine output torque and the motor output torque is transmitted to the clutch together, and the clutch transmits the torque to the transmission input shaft, so that the vehicle is controlled to run. The sum of the output torque of the engine and the output torque of the motor is not more than the maximum bearing torque of the clutch all the time, so that the effect of avoiding the transitional wear of the clutch can be achieved.

And S130, responding to the brake release operation of the driver, controlling the output torque of the engine based on the preset maximum torque, and acquiring the second engine torque actually output by the engine.

The second engine torque is the torque actually output by the engine collected in real time after the driver releases the brake.

Specifically, after the driver releases the brake, the engine is controlled to still operate at a preset maximum threshold. Because the actual output torque of the engine does not necessarily reach the preset maximum threshold, the second engine torque actually output by the engine is obtained in real time in the running process of the engine.

Exemplary, as shown in FIG. 2, the driver is at T ₂ The brake is released at a moment, and the engine torque trace line shown by dotted line and dashed line in FIG. 2 is notA change occurs, i.e. the control engine is still running at the preset maximum threshold.

And S140, determining a second required torque corresponding to the motor based on the second engine torque, the maximum bearing torque of the clutch and the maximum bearing torque of the transmission, and controlling the motor to operate according to the second motor required torque.

The relationship between the maximum torque to be applied to the transmission and the hardware characteristics of the transmission is generally a fixed value.

Specifically, the launch demand torque may be determined based on a maximum bearing torque of the clutch, a maximum bearing torque of the transmission, and a preset slope. And taking the difference value between the ejection starting required torque and the second required torque as the corresponding second required torque of the motor. After the second required torque is obtained, the motor is controlled to operate according to the second motor required torque.

In the embodiment, after a driver releases the brake, the motor torque is quickly improved by utilizing the advantage of high response speed of the motor torque, so that the input torque of the transmission can be quickly refreshed, and the whole vehicle can be quickly started. Exemplary, as shown in FIG. 2, the driver is at T ₂ The brake is released at a moment, and the motor torque trace line shown by dotted line in fig. 2 is at T ₂ After the moment, a rapid lifting is realized, and the maximum torque after the lifting is kept to run continuously. In addition, after the driver releases the brake, the sum of the output torque of the engine and the output torque of the motor is not more than the maximum bearing torque of the transmission all the time, so that the safety of the vehicle can be ensured.

Illustratively, as shown in FIG. 2, the half-broken line between the engine torque trace and the motor torque trace in FIG. 2 is the total torque trace of the sum of the engine torque and the motor torque over time. T (T) ₀ To T ₂ The time period is the first stage of ejection starting control, and in the first stage, the sum of the engine torque and the motor torque is not exceeded the maximum bearing torque of the clutch all the time, so that the clutch is prevented from being worn in a transitional mode. T (T) ₂ The second stage of ejection starting control is adopted after the moment, and the sum of the engine torque and the motor torque can be quickly increased in a short time when the second stage is started The whole car can be started quickly.

Alternatively, in order to ensure the safety of the vehicle, when the output torque of the engine is controlled to rise from the initial torque to the preset maximum torque, it may be: and responding to the ejection starting operation of simultaneously stepping on the accelerator and the brake by the driver, and if the current condition of the ejection starting is detected to be met, controlling the output torque of the engine to rise from the initial torque to the preset maximum torque.

Wherein, launch the starting condition and include: the engine is started, the driver closes the electronic stability control system of the vehicle body, the driving mode is a motion mode, the position of the gear shifting lever is a forward gear, the vehicle speed is zero, and the vehicle has no power system fault.

In this embodiment, after the driver simultaneously steps on the accelerator and the brake, it is detected whether the accelerator opening is 100% and the brake pressure exceeds the threshold. If yes, further judging whether all the ejection starting conditions are met currently, and if yes, controlling the output torque of the engine to rise from the initial torque to the preset maximum torque; if any one of the ejection starting conditions is not satisfied, the driver is prompted in time, so that the ejection starting safety is ensured.

Example two

Fig. 3 is a flowchart of a vehicle launch control method according to a second embodiment of the present invention, where the step of "controlling the output torque of the engine to rise from the initial torque to the preset maximum torque" and "determining the second required torque corresponding to the motor based on the second engine torque, the maximum bearing torque of the clutch, and the maximum bearing torque of the transmission" are further optimized based on the above embodiments, and the embodiments of the present invention may be combined with each of the alternatives in one or more embodiments. As shown in fig. 3, the method includes:

And S210, controlling the rotation speed of the engine to rise from the initial rotation speed to the maximum torque rotation speed in response to the ejection starting operation of simultaneously stepping on the accelerator and the brake by the driver.

In the present embodiment, the initial rotational speed is the rotational speed at the time of the engine just started. The maximum torque rotation speed is an engine rotation speed at which the engine can output the maximum torque. The maximum torque speed of the engine is related to the engine characteristics and is obtained through bench test, generally 1500-4500 rpm. Specifically, when the driver steps on the accelerator and the brake simultaneously, the rotation speed of the engine is controlled to gradually rise from the initial rotation speed to the maximum torque rotation speed of the engine.

S220, controlling the output torque of the engine to rise from the initial torque to the preset maximum torque based on the maximum torque rotating speed.

In the present embodiment, after the engine is stably operated at the maximum torque rotation speed, the engine is controlled to rise from the initial torque to the preset maximum torque. The purpose of this arrangement is that: the output torque of the engine can be controlled to be the preset maximum torque only when the rotation speed of the engine is set to be the maximum torque rotation speed, otherwise, the output torque of the engine can not reach the preset maximum torque.

S230, acquiring the first engine torque actually output by the engine in the rising process.

S240, determining a first required torque corresponding to the motor based on the first engine torque and the maximum bearing torque of the clutch, and controlling the motor to operate according to the first required torque.

S250, responding to the brake release operation of a driver, controlling the output torque of the engine based on the preset maximum torque, and acquiring the second engine torque actually output by the engine.

And S260, determining the current ejection starting required torque based on the maximum bearing torque of the clutch and the maximum bearing torque of the transmission.

The current launch demand torque, among other things, may be understood as the sum of the torque currently required by the motor and the engine from the moment the driver releases the brake.

In this embodiment, the sum of the torque supplied by the motor and the engine does not exceed the maximum torque received by the clutch during the first phase of launch. In the second phase of launch, the sum of the torque supplied by the motor and the engine does not exceed the maximum torque received by the transmission. Based on this, the current launch demand torque may be determined based on the maximum bearing torque of the clutch and the maximum bearing torque of the transmission.

Based on the above embodiment, S260 specifically includes: determining a change line segment between the control moment with a preset slope and the ejection starting demand torque by taking the maximum bearing torque of the clutch as the initial torque corresponding to the brake release moment and the maximum allowable torque of the transmission as the ending torque corresponding to the control ending moment; and determining the current ejection starting required torque based on the current control moment and the change line segment.

Specifically, the maximum bearing torque of the clutch is taken as initial torque corresponding to the brake release moment, the maximum allowable torque of the transmission is taken as ending torque corresponding to the control ending moment, the initial torque is taken as the starting point of a change line segment, the torque slope Delta is linearly increased to the ending torque, and the change line segment between the control moment and the ejection starting demand torque can be determined. Therefore, based on the difference value between the brake release time and the current control time, the change line segment between the control time and the ejection starting required torque is inquired, and the current ejection starting required torque corresponding to the current time can be determined.

S270, determining a second required torque corresponding to the motor based on the second engine torque and the current ejection starting required torque.

Optionally, the determining the second required torque is specifically: and determining the difference value between the current ejection starting required torque and the second engine torque as a second required torque corresponding to the motor.

In this embodiment, the current ejection starting demand torque is an amount obtained in real time, and the current ejection starting demand torque can be obtained once every preset time period when the current ejection starting demand torque is specifically implemented, so that the second demand torque corresponding to the current ejection starting demand torque is determined once every time the current ejection starting demand torque is obtained. The second required torque may be expressed as: second demand torque = current launch start demand torque-second engine torque.

And S280, controlling the motor to operate according to the second motor required torque.

According to the technical scheme provided by the embodiment of the invention, in the first stage of ejection starting, when a driver simultaneously steps on an accelerator and a brake, the rotation speed of the engine is controlled to rise from the initial rotation speed to the maximum torque rotation speed, so that the output torque of the engine is controlled to rise from the initial torque to the preset maximum torque based on the maximum torque rotation speed, and the engine can be ensured to rise from the initial torque to the preset maximum torque. When the second required torque corresponding to the motor is determined, the current ejection starting required torque is determined based on the maximum bearing torque of the clutch and the maximum bearing torque of the transmission, and then the second required torque corresponding to the motor is determined based on the second engine torque and the current ejection starting required torque, so that damage to the transmission caused by the fact that the second required torque exceeds the range of the bearable torque of the transmission is avoided, and the ejection starting control safety is ensured.

Example III

Fig. 4 is a schematic structural diagram of an ejection starting control device for a vehicle according to a third embodiment of the present invention, where the device may execute the ejection starting control method for a vehicle according to the embodiment of the present invention. The device comprises: an engine torque capacity up module 310, a motor first torque determination module 320, an engine torque acquisition module 330, and a motor first torque determination module 340.

The engine maximum torque rising module 310 is configured to control an output torque of an engine to rise from an initial torque to a preset maximum torque in response to an ejection start operation of a driver simultaneously stepping on an accelerator and a brake, and obtain a first engine torque actually output by the engine during the rising process;

a first motor torque determining module 320, configured to determine a first required torque corresponding to a motor based on the first engine torque and a maximum bearing torque of a clutch, and control the motor to operate according to the first required torque;

an engine torque obtaining module 330, configured to control an output torque of an engine based on the preset maximum torque in response to a brake release operation of the driver, and obtain a second engine torque actually output by the engine;

the first motor torque determining module 340 is configured to determine a second required torque corresponding to the motor based on the second engine torque, the maximum bearing torque of the clutch, and the maximum bearing torque of the transmission, and control the motor to operate according to the second motor required torque.

On the basis of the above aspects, the engine maximum torque up module 310 is further configured to: responding to the ejection starting operation that a driver simultaneously steps on an accelerator and a brake, and if the current condition of the ejection starting is detected to be met, controlling the output torque of the engine to rise from the initial torque to the preset maximum torque; wherein, the ejection starting conditions include: the engine is started, the driver closes the electronic stability control system of the vehicle body, the driving mode is a motion mode, the position of the gear shifting lever is a forward gear, the vehicle speed is zero, and the vehicle has no power system fault.

On the basis of the above aspects, the engine maximum torque up module 310 includes:

a maximum rotation speed control unit for controlling the rotation speed of the engine to rise from the initial rotation speed to a maximum torque rotation speed;

and the maximum torque rising unit is used for controlling the output torque of the engine to rise from the initial torque to the preset maximum torque based on the maximum torque rotating speed.

Based on the above technical solutions, the first motor torque determining module 320 is specifically configured to: and determining the difference value between the maximum bearing torque of the clutch and the first engine torque as a first required torque corresponding to the motor.

Based on the above aspects, the engine torque obtaining module 330 includes:

the ejection starting torque determining unit is used for determining the current ejection starting required torque based on the maximum bearing torque of the clutch and the maximum bearing torque of the transmission;

and the required torque determining unit is used for determining a second required torque corresponding to the motor based on the second engine torque and the current ejection starting required torque.

On the basis of the above technical solutions, the ejection starting torque determining unit includes:

the change line segment determining subunit is used for determining a change line segment between the control moment with a preset slope and the ejection starting demand torque by taking the maximum bearing torque of the clutch as the initial torque corresponding to the brake release moment and taking the maximum allowable torque of the transmission as the ending torque corresponding to the control ending moment;

and the ejection starting torque determining subunit is used for determining the current ejection starting required torque based on the current control moment and the change curve.

On the basis of the technical schemes, the required torque determining unit is specifically used for: and determining the difference value between the current ejection starting required torque and the second engine torque as a second required torque corresponding to the motor.

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

It should be noted that each unit and module included in the above apparatus are only divided according to the functional logic, but not limited to the above division, so long as the corresponding functions can be implemented; in addition, the specific names of the functional units are also only for convenience of distinguishing from each other, and are not used to limit the protection scope of the embodiments of the present disclosure.

Example IV

Fig. 5 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present invention. The electronic device 10 is intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular telephones, smartphones, wearable electronic devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the inventions described and/or claimed herein.

As shown in fig. 5, the electronic device 10 includes at least one processor 11, and a memory, such as a Read Only Memory (ROM) 12, a Random Access Memory (RAM) 13, etc., communicatively connected to the at least one processor 11, in which the memory stores a computer program executable by the at least one processor, and the processor 11 may perform various appropriate actions and processes according to the computer program stored in the Read Only Memory (ROM) 12 or the computer program loaded from the storage unit 18 into the Random Access Memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 may also be stored. The processor 11, the ROM 12 and the RAM 13 are connected to each other via a bus 13. An input/output (I/O) interface 15 is also connected to bus 13.

Various components in the electronic device 10 are connected to the I/O interface 15, including: an input unit 16 such as a keyboard, a mouse, etc.; an output unit 17 such as various types of displays, speakers, and the like; a storage unit 18 such as a magnetic disk, an optical disk, or the like; and a communication unit 19 such as a network card, modem, wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information/data with other electronic devices via a computer network, such as the internet, and/or various telecommunication networks.

The processor 11 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various specialized Artificial Intelligence (AI) computing chips, various processors running machine learning model algorithms, digital Signal Processors (DSPs), and any suitable processor, controller, microcontroller, etc. The processor 11 performs the various methods and processes described above, such as the launch control method of the vehicle.

In some embodiments, the launch vehicle launch control method may be implemented as a computer program tangibly embodied on a computer-readable storage medium, such as the storage unit 18. In some embodiments, part or all of the computer program may be loaded and/or installed onto the electronic device 10 via the ROM 12 and/or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the launch control method of the vehicle described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to perform the launch control method of the vehicle in any other suitable manner (e.g., by means of firmware).

Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuit systems, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), systems On Chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.

A computer program for carrying out methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general purpose computer, special purpose computer, or other programmable vehicle launch control apparatus, such that the computer programs, when executed by the processor, cause the functions/operations specified in the flowchart and/or block diagram to be performed. The computer program may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.

In the context of the present invention, a computer-readable storage medium may be a tangible medium that can contain, or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or electronic device, or any suitable combination of the foregoing. Alternatively, the computer readable storage medium may be a machine readable signal medium. More specific examples of a machine-readable storage medium would include an electrical connection based on 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 electronic device, a magnetic storage electronic device, or any suitable combination of the foregoing.

To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) through which a user can provide input to the electronic device. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.

The systems and techniques described here can be implemented in a computing system that includes a background component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such background, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), blockchain networks, and the internet.

The computing system may include clients and servers. The client and server are typically remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical hosts and VPS service are overcome. It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present invention may be performed in parallel, sequentially, or in a different order, so long as the desired results of the technical solution of the present invention are achieved, and the present invention is not limited herein. The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. The ejection starting control method of the vehicle is characterized by comprising the following steps of:

2. The method of claim 1, wherein controlling the engine output torque to rise from the initial torque to the preset maximum torque in response to an launch maneuver in which the driver simultaneously steps on the throttle and the brake, comprises:

Responding to the ejection starting operation that a driver simultaneously steps on an accelerator and a brake, and if the current condition of the ejection starting is detected to be met, controlling the output torque of the engine to rise from the initial torque to the preset maximum torque;

wherein, the ejection starting conditions include: the engine is started, the driver closes the electronic stability control system of the vehicle body, the driving mode is a motion mode, the position of the gear shifting lever is a forward gear, the vehicle speed is zero, and the vehicle has no power system fault.

3. The method of claim 1, wherein controlling the output torque of the engine to rise from an initial torque to a preset maximum torque comprises:

controlling the rotation speed of the engine to rise from the initial rotation speed to the maximum torque rotation speed;

the output torque of the engine is controlled to rise from the initial torque to a preset maximum torque based on the maximum torque rotational speed.

4. The method of claim 1, wherein determining a first required torque for the electric machine based on the first engine torque and a maximum torque received by the clutch comprises:

and determining the difference value between the maximum bearing torque of the clutch and the first engine torque as a first required torque corresponding to the motor.

5. The method of claim 1, wherein the determining a corresponding second required torque for the electric machine based on the second engine torque, the maximum torque capacity of the clutch, and the maximum torque capacity of the transmission comprises:

determining the current ejection starting required torque based on the maximum bearing torque of the clutch and the maximum bearing torque of the transmission;

and determining a second required torque corresponding to the motor based on the second engine torque and the current ejection starting required torque.

6. The method of claim 5, wherein determining the current launch demand torque based on the maximum launch torque of the clutch and the maximum launch torque of the transmission comprises:

determining a change line segment between the control moment with a preset slope and the ejection starting required torque by taking the maximum bearing torque of the clutch as an initial torque corresponding to the brake release moment and taking the maximum allowable torque of the transmission as an ending torque corresponding to the control ending moment;

and determining the current ejection starting required torque based on the current control moment and the change line segment.

7. The method of claim 5, wherein the determining a corresponding second demand torque for the electric machine based on the second engine torque and the current launch demand torque comprises:

And determining the difference value between the current ejection starting required torque and the second engine torque as a second required torque corresponding to the motor.

8. An ejection start control device for a vehicle, comprising:

and the motor second torque determining module is used for determining a second required torque corresponding to the motor based on the second engine torque, the maximum bearing torque of the clutch and the maximum bearing torque of the transmission, and controlling the motor to operate according to the second motor required torque.

9. An electronic device, the electronic device comprising:

at least one processor; and

the memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the launch control method of the vehicle of any one of claims 1-7.

10. A computer readable storage medium storing computer instructions for causing a processor to execute the launch control method of the vehicle of any one of claims 1-7.