WO2024017071A1

WO2024017071A1 - Launch control method and apparatus for hybrid vehicle, and storage medium

Info

Publication number: WO2024017071A1
Application number: PCT/CN2023/106193
Authority: WO
Inventors: 郭丁伊; 尹建坤; 祝浩; 刘元治; 刘建康; 徐家良; 程健
Original assignee: 中国第一汽车股份有限公司
Priority date: 2022-07-18
Filing date: 2023-07-06
Publication date: 2024-01-25
Also published as: CN115158285A

Abstract

Provided in the present application are a launch control method and apparatus for a hybrid vehicle, and a storage medium. The method comprises: collecting operating condition information of a hybrid vehicle, and determining, according to the operating condition information, whether the hybrid vehicle is in a launch ready state; and if so, generating a first control policy on the basis of the number of effective continuous gear engaging instances of a D gear, wherein the first control policy comprises: controlling the function of an auto hold system of the hybrid vehicle to be disabled, controlling an electronic parking brake system of a braking system to be unlocked, controlling an engine to immediately start up and maintain a started state, controlling the engine to keep to output a preset output power, a target rotation speed and a target torque after startup, controlling a driving electric motor to output a torque required by a driver, controlling a driveability filtering algorithm and a driving torque NVH control algorithm to stop calculating the torque of the driving electric motor, and controlling a water pump and a fan, which are used for cooling the driving electric motor and a generator, to rotate at full speed. The present application solves the problem in the prior art of low starting rapid acceleration capability of a dual-electric-motor hybrid vehicle.

Description

Control method, control device and storage medium for hybrid vehicle ejection start

Technical field

The present application relates to the field of vehicle technology, specifically, to a control method, control device, and storage medium for ejection start of a hybrid vehicle. This application requests priority for the patent application submitted to the State Intellectual Property Office of China on July 18, 2022, with the application number 202210843458.8 and the invention title "Control method, control device, and storage medium for hybrid vehicle ejection start".

Background technique

Today, with the increasing shortage of petroleum resources and the increasingly stringent fuel consumption regulations, traditional vehicles driven by pure internal combustion engines are becoming more and more expensive and difficult to reduce fuel consumption; hybrid vehicles are more and more difficult to reduce fuel consumption due to the assistance of electric motors. has great potential. The P2 configuration represented by European manufacturers and the dual-motor planetary gear power split configuration represented by Toyota have all achieved mass production and achieved good fuel consumption performance, gaining popularity among mass consumers. However, both the P2 configuration and the power split configuration face many technical difficulties and barriers when applied in China, and the application of independent models has been relatively slow.

For the dual-motor hybrid configuration, when the vehicle is at medium or low speed, the engine cannot directly drive the vehicle due to the vehicle speed ratio setting. Instead, the engine outputs torque and generates electricity through the generator. The electrical power generated by the generator and The electric power from the power battery is jointly supplied to the drive motor, and the drive motor completes the driving of the vehicle. Therefore, the available power of the drive motor is not only related to the discharge power of the power battery, but also related to the generated power generated by the engine. For dual-motor hybrid vehicles, when the vehicle is stationary, the engine is often in a stopped state. When the driver starts with a large accelerator, the engine needs to start from a standstill state before it can output the generator power. At the same time, the process of starting the engine by the generator also requires consumption. A certain battery power will also lead to a reduction in the available power of the drive motor, so dual-motor hybrid vehicles often do not have strong ability to accelerate from a start.

Contents of the invention

The main purpose of this application is to provide a control method, control device, and storage medium for ejection start of a hybrid vehicle, so as to solve the problem in the prior art that the dual-motor hybrid vehicle has a weak ability to accelerate rapidly at start.

In order to achieve the above purpose, according to one aspect of the present application, a method for controlling ejection start of a hybrid vehicle is provided, including: collecting operating condition information of the hybrid vehicle, where the operating condition information includes at least one of the following: startup of the hybrid vehicle status, and the number of valid continuous shifts in D gear; determine whether the hybrid vehicle is in the ejection start preparation state based on the working condition information; if so, generate a first control strategy based on the number of valid continuous shifts in D gear, where the first control strategy includes control The automatic parking system function of the hybrid vehicle is turned off, the electronic parking system that controls the braking system is unlocked, the engine is controlled to start immediately and remains in the starting state, and the engine is controlled to maintain output of preset power, target speed and target after starting. Torque, control the drive motor output driver demand torque, control drivability filter algorithm and drive torque NVH control algorithm to stop calculating the torque of the drive motor, control the water pump and fan for cooling the drive motor and generator to rotate at full speed.

Optionally, judging whether the hybrid vehicle is in an ejection start preparation state according to the working condition information includes: judging whether the starting state of the hybrid vehicle is a successful start state; when the starting state of the hybrid vehicle is a successful start state, obtaining The interval time between adjacent D gear operations; determine whether the interval time meets the preset conditions; if so, it is preliminarily determined that the hybrid vehicle is in an ejection start preparation state.

Optionally, the method also includes: after initially determining that the hybrid vehicle is in a preparatory state for ejection, determine whether the hybrid vehicle is in a stationary state within a preset time; if so, determine that the hybrid vehicle is not in a preparatory state for ejection; if not , determine whether the gear position of the hybrid vehicle is D gear, and when the gear position is D gear, it is determined that the hybrid vehicle is in an ejection starting preparation state.

Optionally, generating the first control strategy based on the number of effective continuous engagements in D gear includes: determining the target speed based on the number of effective continuous engagements in D gear; determining the target torque based on the target speed and preset power; and obtaining the throttle opening of the hybrid vehicle. degree and vehicle speed; based on the accelerator opening and vehicle speed, the driver's required torque is determined; a first control strategy is generated based on the target speed, preset power, target torque and driver's required torque.

Optionally, the method further includes: when it is determined that the hybrid vehicle is not in the ejection starting preparation state, obtaining the first target speed and the first target torque of the engine, and obtaining the second target torque of the drive motor; based on the first target speed , the first target torque and the second target torque generate a second control strategy. The second control strategy includes controlling the engine to output the first target speed and the first target torque, controlling the drive motor to output the second target torque, and controlling the current automatic parking system. The state is restored to the state when the hybrid vehicle is not in the ejection preparation state.

Optionally, obtaining the first target speed and first target torque of the engine and obtaining the second target torque of the drive motor include: calculating the first target speed and the first target torque based on the vehicle energy management algorithm; and based on drivability filtering algorithm and driving torque NVH control algorithm to calculate the second target torque; obtain the first target speed, first target torque and second target torque.

According to another aspect of the embodiment of the present application, a control device for ejection start of a hybrid vehicle is provided, including: a collection module for collecting operating condition information of the hybrid vehicle, where the operating condition information includes at least one of the following: Hybrid The starting state of the vehicle and the number of valid continuous shifts in D gear; the judgment module determines whether the hybrid vehicle is in the ejection start preparation state based on the working condition information; the control module, if so, generates the first control strategy based on the number of valid continuous shifts in D gear , among which, the first control strategy includes controlling the automatic parking system function of the hybrid vehicle to be turned off, controlling the electronic parking system of the braking system to unlock, controlling the engine to start immediately and maintaining the starting state, and controlling the engine to remain in the starting state after starting. Output the preset power, target speed and target torque, control the drive motor to output driver demand torque, control the drivability filter algorithm and drive torque NVH control algorithm to calculate the torque of the drive motor, and control the water pump and fan for cooling the drive motor and generator. Spin at full speed.

According to another aspect of the embodiment of the present application, a computer-readable storage medium is provided. The computer-readable storage medium includes a stored program, wherein the computer program is configured to control execution of the above-mentioned hybrid vehicle ejection start during runtime. control method.

According to another aspect of the embodiment of the present application, a processor is provided, and the processor is configured to run a program, wherein the processor executes the above-mentioned control method for ejection start of a hybrid vehicle through the computer program.

According to another aspect of the embodiment of the present application, a hybrid vehicle is provided, in which the above-mentioned control method for the hybrid vehicle ejection start is used when the hybrid vehicle ejects and starts.

By applying the technical solution of this application, by collecting the working condition information of the hybrid vehicle, the working condition information includes at least one of the following: the starting state of the hybrid vehicle, the number of effective consecutive shifts in D gear, and judging whether the hybrid vehicle is based on the working condition information. In the ejection start preparation state, if so, a first control strategy is generated based on the number of effective consecutive shifts in D gear. The first control strategy includes controlling the shutdown of the automatic parking system function of the hybrid vehicle and controlling the electronic parking of the braking system. The system unlocks, controls the engine to start immediately and maintains the starting state, controls the engine to maintain output of preset power, target speed and target torque after starting, controls the drive motor to output the driver's required torque, and controls the drivability filter algorithm and drive The torque NVH control algorithm calculates the torque of the drive motor and controls the water pump and fan for cooling the drive motor and generator to rotate at full speed, so that when the hybrid vehicle ejects, it can start the engine in advance and prepare the engine so that the engine can respond to the entire vehicle at any time. drive power requirements, and can provide the largest possible cooling capacity for the drive motor and generator to avoid power limitations of the drive motor and generator due to overtemperature, so that the drive motor has enough available energy to complete the large tasks of the entire vehicle. power drive, thereby improving the starting speed of the hybrid vehicle when ejecting and starting, and solving the problem of the dual-motor hybrid vehicle in the existing technology that the ability to start is not strong in rapid acceleration.

Description of drawings

The description and drawings that constitute a part of this application are used to provide a further understanding of this application. The illustrative embodiments and their descriptions of this application are used to explain this application and do not constitute an improper limitation of this application. In the attached picture:

Figure 1 shows a flow chart of a first embodiment of a control method for ejection start of a hybrid vehicle according to the present application;

Figure 2 shows a flow chart of a second embodiment of a control method for ejection start of a hybrid vehicle according to the present application;

Figure 3 shows a flow chart of a third embodiment of a control method for ejection start of a hybrid vehicle according to the present application;

Figure 4 shows a flow chart of a fourth embodiment of a control method for ejection start of a hybrid vehicle according to the present application;

Figure 5 shows a structural block diagram of an embodiment of a control device for ejection start of a hybrid vehicle according to the present application;

Figure 6 shows a schematic structural diagram of an embodiment of a power system of a hybrid vehicle according to the present application;

FIG. 7 shows a structural block diagram of an embodiment of an electronic device of a vehicle according to the control method for ejection start of a hybrid vehicle of the present application.

1. Engine; 2. Generator; 3. Torsional shock absorber; 4. Reduction gear mechanism; 5. Clutch; 6. Drive motor; 7. Differential.

Detailed ways

It should be noted that, as long as there is no conflict, the embodiments and features in the embodiments of this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular forms are also intended to include the plural forms unless the context clearly indicates otherwise. Furthermore, it will be understood that when the terms "comprises" and/or "includes" are used in this specification, they indicate There are features, steps, operations, means, components and/or combinations thereof.

It should be noted that the terms "first", "second", etc. in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the application described herein can, for example, be practiced in sequences other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, e.g., a process, method, system, product, or apparatus that encompasses a series of steps or units and need not be limited to those explicitly listed. Those steps or elements may instead include other steps or elements not expressly listed or inherent to the process, method, product or apparatus.

According to the embodiment of the present application, a method embodiment of a method for controlling the ejection start of a hybrid vehicle is provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be implemented in a computer system such as a set of computer executable instructions. are performed, and, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that herein.

As shown in Figure 1 is a flow chart of a first embodiment of a control method for ejection start of a hybrid vehicle according to the present application. As shown in Figure 1, the control method for ejection start of a hybrid vehicle includes the following steps:

Step S102: Collect working condition information of the hybrid vehicle. The working condition information includes at least one of the following: the starting state of the hybrid vehicle and the number of times the D gear is valid and continuously engaged;

Step S104, determine whether the hybrid vehicle is in an ejection-start preparation state based on the working condition information;

Step S106, if yes, generate a first control strategy based on the number of effective consecutive engagements in D gear, where the first control strategy includes controlling the shutdown of the automatic parking system function of the hybrid vehicle, controlling the unlocking of the electronic parking system of the braking system, Control the engine to start immediately and maintain the starting state, control the engine to maintain output of preset power, target speed and target torque after starting, control the drive motor to output the driver's required torque, control the drivability filter algorithm and the drive torque NVH control algorithm Stops calculating the torque of the drive motor and controlling the water pump and fan for cooling the drive motor and generator to rotate at full speed.

Through the above steps, the engine can be started in advance and prepared when the hybrid vehicle is ejected, so that the engine can respond to the vehicle's driving power request at any time, and can provide the largest possible cooling capacity for the driving motor and generator to avoid Due to the limited power of the drive motor and generator caused by over-temperature, the drive motor has enough available energy to complete the high-power drive of the entire vehicle, thereby improving the starting speed of the hybrid vehicle during ejection and starting, and solving the problems in the existing technology. The problem of dual-motor hybrid vehicles' weak acceleration ability from starting.

Optionally, Figure 2 is a flow chart of a second embodiment of a control method for ejection start of a hybrid vehicle according to the present application. As shown in Figure 2, judging whether the hybrid vehicle is in an ejection start preparation state according to the working condition information includes: Following steps:

Step S21, determine whether the starting state of the hybrid vehicle is a successful starting state;

Step S22, when the starting state of the hybrid vehicle is a successful start state, obtain the interval time between adjacent D gear operations;

Step S23, determine whether the interval time meets the preset conditions;

Step S24, if yes, it is initially determined that the hybrid vehicle is in an ejection starting preparation state.

Among them, the preset condition is set to an interval of less than 1.5 seconds. Specifically, when the hybrid vehicle is started successfully, the gear of the hybrid vehicle is D, and the brake pedal of the hybrid vehicle is depressed, if the driver engages the D gear at least twice consecutively through the shifting device, If the hybrid vehicle is in D gear and the interval between the two D gear operations is less than 1.5 seconds, it is considered that the driver has the intention of ejection start, and it is preliminarily determined that the hybrid vehicle is in the ejection start preparation state. This can accurately determine whether the hybrid vehicle needs ejection start.

Optionally, Figure 3 is a flow chart of a third embodiment of the control method for ejection start of a hybrid vehicle according to the present application. As shown in Figure 3, the control method for ejection start of a hybrid vehicle also includes the following steps:

Step S31: After initially determining that the hybrid vehicle is in an ejection-start preparation state, determine whether the hybrid vehicle is in a stationary state within a preset time;

Step S32, if yes, determine that the hybrid vehicle is not in the ejection preparation state;

Step S33, if not, determine whether the gear of the hybrid vehicle is D;

Step S34: When the gear position is D, it is determined that the hybrid vehicle is in an ejection starting preparation state.

In this embodiment, the preset time is set to 30 seconds. Specifically, after initially determining that the hybrid vehicle is in the ejection-start preparation state, if the hybrid vehicle is still in a stationary state within 30 seconds, it is considered that the driver has no intention of ejection-start, and it is determined that the hybrid vehicle is not in the ejection-start preparation state. If the hybrid vehicle is not in a stationary state, but the gear of the hybrid vehicle is not D, it is also considered that the driver has no intention of ejection start, and it is determined that the hybrid vehicle is not in the ejection start preparation state. This can further accurately determine whether the hybrid vehicle has a need for ejection start.

Optionally, the first control strategy is generated based on the number of effective continuous engagements in D gear, including determining the target speed based on the number of effective continuous engagements in D gear; determining the target torque based on the target speed and preset power; and obtaining the throttle opening of the hybrid vehicle. , vehicle speed; based on the accelerator opening and vehicle speed, determine the driver's demand torque; generate a first control strategy based on the target speed, preset power, target torque and driver's demand torque. In this embodiment, the more times the D gear is effectively and continuously engaged, the greater the target speed after the engine is started is controlled, and during driving, the minimum target speed of the engine in the series mode must not be lower than the D gear effectively and continuously. The target engine speed when the number of times the gear is engaged is two. Among them, the preset power is 5kw, and the target torque of the engine is calculated by the preset power (5kw) and the target speed. The calculation formula is:
Target torque = preset power × 9550/target speed

Specifically, after it is determined that the hybrid vehicle is in the ejection start preparation state, the Autohold (automatic parking system) function of the vehicle is automatically turned off, and the EPB (Electronic Parking System) of the braking system is automatically unlocked. However, if the EPB of the braking system is There is no automatic unlocking. The driver can turn on the EPB again through the EPB switch. At this time, the engine is controlled to start immediately and keep starting. machine status. After starting, the engine maintains a mechanical power output of 5kw. The engine speed is determined by the number of effective consecutive D gear shifts when the hybrid vehicle is in the ejection start preparation state. When the operating time between two consecutive D gear shifts is less than 1.5 seconds, the effective number of consecutive D gear shifts is two, then After starting, the engine speed remains at 2000 rpm. When the operating time between three consecutive D gear shifts is less than 1.5 seconds, the effective number of consecutive D gear shifts is three, and the engine speed is maintained at 2,500 rpm after starting. If the effective number of consecutive gear shifts is four or more, the engine speed will remain at 3,000 rpm after starting. And in order to ensure that the drive motor has the fastest possible torque response, the torque response of the drive motor comes directly from the vehicle PedalMap table (that is, the driver's required torque is obtained through the throttle opening and vehicle speed lookup table), while controlling the drivability filter algorithm and The drive torque NVH control algorithm stops calculating the torque of the drive motor. Through this control, when the hybrid vehicle is ejected and started, the engine can be started immediately and the operating speed of the engine can be increased, thereby ensuring that the engine has a faster power output speed to ensure the power use of the drive motor, and by controlling the Autohold of the hybrid vehicle When the function is turned off, the EPB is automatically unlocked, which is beneficial to the quick start of the hybrid vehicle.

Optionally, Figure 4 is a flow chart of a fourth embodiment of a control method for ejection start of a hybrid vehicle according to the present application. As shown in Figure 4, the control method for ejection start of a hybrid vehicle further includes the following steps:

Step S41, when it is determined that the hybrid vehicle is not in the ejection start preparation state, obtain the first target speed and first target torque of the engine, and obtain the second target torque of the drive motor;

Step S42: Generate a second control strategy based on the first target speed, the first target torque, and the second target torque. The second control strategy includes controlling the engine to output the first target speed and the first target torque, and controlling the drive motor to output the second target torque. , control the current state of the automatic parking system to return to the state when the hybrid vehicle is not in the ejection start preparation state.

In this embodiment, after it is determined that the hybrid vehicle is not in the ejection start preparation state, it is proved that the hybrid vehicle has no ejection start requirement. At this time, the second control strategy is executed, so that the hybrid vehicle can be controlled according to the actual situation of the hybrid vehicle. Target devices such as the vehicle's engine, drive motor, and automatic parking system execute corresponding control strategies.

Optionally, obtaining the first target speed and the first target torque of the engine, and obtaining the second target torque of the drive motor include calculating the first target speed and the first target torque based on the vehicle energy management algorithm, and calculating the first target speed and the first target torque based on the drivability filtering algorithm. and the driving torque NVH control algorithm to calculate the second target torque and obtain the first target speed, first target torque and second target torque. In this embodiment, if the first target speed and the first target torque calculated by the vehicle energy management algorithm are zero, the engine is controlled to stop.

According to another specific embodiment of the present application, a control device for ejection start of a hybrid vehicle is also provided. As shown in FIG. 5 , the control device includes a collection module 42 , a judgment module 44 and a control module 46 . The collection module 42 is used to collect the working condition information of the hybrid vehicle. The working condition information includes at least one of the following: the starting state of the hybrid vehicle and the number of valid consecutive D gears; the judgment module 44 determines whether the hybrid vehicle is based on the working condition information. is in the ejection start preparation state; when the hybrid vehicle is in the ejection start preparation state, the control module 46 generates a first control strategy based on the number of effective consecutive engagements of the D gear, where the first control strategy includes controlling the automatic operation of the hybrid vehicle. The parking system function is turned off, the electronic parking system that controls the braking system is unlocked, the engine is controlled to start immediately and remains in the starting state, and the engine is controlled to maintain output of preset power, target speed and target torque after starting, and the drive motor is controlled. Output driver demand torque, control The drivability filter algorithm and the drive torque NVH control algorithm stop calculating the torque of the drive motor and control the water pump and fan used for cooling the drive motor and generator to rotate at full speed.

In this embodiment, by collecting the working condition information of the hybrid vehicle, the working condition information includes at least one of the following: the starting state of the hybrid vehicle, the number of effective consecutive shifts in D gear, and judging whether the hybrid vehicle is in a state based on the working condition information. The ejection start preparation state, if so, generates a first control strategy based on the number of effective consecutive shifts in D gear. The first control strategy includes controlling the shutdown of the automatic parking system function of the hybrid vehicle and controlling the electronic parking system of the braking system. Unlock, control the engine to start immediately and keep it in the starting state, control the engine to maintain output of preset power, target speed and target torque after starting, control the drive motor to output the driver's required torque, and control the drivability filter algorithm and drive torque The NVH control algorithm stops calculating the torque of the drive motor and controls the water pump and fan for cooling the drive motor and generator to rotate at full speed. This enables the engine to be started in advance and ready when the hybrid vehicle is ejected, so that the engine can respond to the vehicle's needs at any time. drive power requirements, and can provide the largest possible cooling capacity for the drive motor and generator to avoid power limitations of the drive motor and generator due to overtemperature, so that the drive motor has enough available energy to complete the high power of the entire vehicle drive, thereby improving the starting speed of the hybrid vehicle when ejecting and starting, and solving the problem of the dual-motor hybrid vehicle in the existing technology that is not strong in the ability to accelerate quickly at start.

According to another specific embodiment of the present application, a computer-readable storage medium is also provided. The computer-readable storage medium includes a stored program, wherein when the program is running, the device where the computer-readable storage medium is located is controlled to execute the above embodiment. Steps of control method for ejection start of hybrid vehicle.

According to another specific embodiment of the present application, a processor is also provided, and the processor is configured to run a program, wherein when the program is run, the steps of the control method for ejection start of a hybrid vehicle in the above embodiment are executed.

According to another specific embodiment of the present application, a hybrid vehicle is also provided. When the hybrid vehicle ejects and starts, the hybrid vehicle ejection start control method in the above embodiment is used. In this way, the driver's ejection start intention can be recognized through the driver's operation, thereby determining that the hybrid vehicle is in the ejection start preparation state (there is a need for ejection start). At this time, the engine can be started in advance and prepared so that the engine can respond to the vehicle's movements at any time. The drive power requirement allows the drive motor to have enough available energy to complete the high-power drive of the entire vehicle, which improves the starting speed of the hybrid vehicle's ejection start.

Figure 6 is a schematic structural diagram of an embodiment of the power system of a hybrid vehicle according to the present application. The power system of the hybrid vehicle includes an engine 1, a generator 2, a torsional shock absorber 3, a reduction gear mechanism 4, Clutch 5, drive motor 6 and differential 7.

This method embodiment may be executed in an electronic device including a memory and a processor or a similar computing device in the vehicle. FIG. 7 is a structural block diagram of an embodiment of an electronic device of a vehicle according to the control method for ejection start of a hybrid vehicle of the present application. Taking the electronic device running on the vehicle as an example, the electronic device of the vehicle may include one or more processors 102 (the processor may include but is not limited to a central processing unit (CPU), a graphics processing unit (GPU), a digital signal processing ( DSP) chips, microprocessors (MCU), programmable logic devices (FPGA), neural network processors (NPU), tensor processors (TPU), artificial intelligence (AI) type processors, etc.) and processing devices to the memory 104 that stores data. Optionally, the electronic device of the vehicle may also include a transmission device 106 for communication functions, an input and output device 108 and a display 110 . Those of ordinary skill in the art can understand that the structure shown in Figure 7 is only illustrative and does not describe the electronic equipment of the above-mentioned vehicle. The structure of the location creates limitations. For example, the electronic device of the vehicle may also include more or less components than the above structural description, or have a different configuration than the above structural description.

The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the control method for ejection start of a hybrid vehicle in the embodiment of the present application. The processor 102 runs the computer stored in the memory 104 program to execute various functional applications and data processing, that is, to implement the above-mentioned control method for ejection start of a hybrid vehicle. Memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include memory located remotely relative to the processor 102, and these remote memories may be connected to the mobile terminal through a network. Examples of the above-mentioned networks include but are not limited to the Internet, intranets, local area networks, mobile communication networks and combinations thereof.

Transmission device 106 is used to receive or send data via a network. Specific examples of the above-mentioned network may include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, NIC for short), which can be connected to other network devices through a base station to communicate with the Internet. In one example, the transmission device may be a radio frequency (Radio Frequency, RF for short) module, which is used to communicate with the Internet wirelessly.

Display 110 may be, for example, a touch screen type liquid crystal display (LCD) and a touch display (also referred to as a "touch screen" or "touch display screen"). The liquid crystal display may enable a user to interact with the user interface of the mobile terminal. In some embodiments, the above-mentioned mobile terminal has a graphical user interface (GUI), and the user can perform human-computer interaction with the GUI through finger contact and/or gestures on the touch-sensitive surface. The human-computer interaction function here is optional. Including the following interactions: creating web pages, drawing, word processing, making electronic documents, games, video conferencing, instant messaging, sending and receiving emails, call interfaces, playing digital videos, playing digital music and/or web browsing, etc., used to perform the above-mentioned tasks The executable instructions of the computer interactive function are configured/stored in a computer program product or readable storage medium executable by one or more processors.

For the convenience of description, spatially relative terms can be used here, such as "on...", "on...", "on the upper surface of...", "above", etc., to describe what is shown in the figure. The spatial relationship between one device or feature and other devices or features. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a feature in the figure is turned upside down, then one feature described as "above" or "on top of" other features or features would then be oriented "below" or "below" the other features or features. under other devices or structures". Thus, the exemplary term "over" may include both orientations "above" and "below." The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition to the above, it should also be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or structures described in conjunction with this embodiment. Features are included in at least one embodiment generally described herein. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure or characteristic is described in connection with any embodiment, it is intended that implementation of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the present application.

In the above embodiments, each embodiment is described with its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

The above descriptions are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included in the protection scope of this application.

Claims

A control method for ejection start of a hybrid vehicle, which is characterized by including:

Collect the working condition information of the hybrid vehicle, and the working condition information includes at least one of the following: the starting state of the hybrid vehicle and the number of valid consecutive D gears;

Determine whether the hybrid vehicle is in an ejection start preparation state based on the working condition information;

If so, a first control strategy is generated based on the number of effective consecutive engagements of the D gear, where the first control strategy includes controlling the shutdown of the automatic parking system function of the hybrid vehicle and controlling the electronic parking of the braking system. The system unlocks, controls the engine to start immediately and maintains the starting state, controls the engine to maintain output of preset power, target speed and target torque after starting, controls the drive motor to output the driver's required torque, controls the drivability filter algorithm and The drive torque NVH control algorithm stops calculating the torque of the drive motor and controls the water pump and fan used for cooling the drive motor and generator to rotate at full speed.
The method for controlling ejection start of a hybrid vehicle according to claim 1, wherein determining whether the hybrid vehicle is in an ejection start preparation state according to the working condition information includes:

Determine whether the starting state of the hybrid vehicle is a successful starting state;

When the startup state of the hybrid vehicle is the startup success state, obtain the interval time between adjacent D gear operations;

Determine whether the interval time meets the preset conditions;

If so, it is preliminarily determined that the hybrid vehicle is in the ejection starting preparation state.
The method for controlling ejection start of a hybrid vehicle according to claim 2, wherein the method further includes:

After initially determining that the hybrid vehicle is in the ejection start preparation state, determine whether the hybrid vehicle is in a stationary state within a preset time;

If so, determine that the hybrid vehicle is not in the ejection preparation state;

If not, determine whether the gear position of the hybrid vehicle is the D gear;

When the gear position is the D gear, it is determined that the hybrid vehicle is in the ejection start preparation state.
The control method for ejection start of a hybrid vehicle according to claim 1, characterized in that generating a first control strategy based on the number of effective continuous gears in D gear includes:

Determine the target speed based on the number of effective continuous gears in D gear;

Determine the target torque based on the target speed and the preset power;

Obtain the accelerator opening and vehicle speed of the hybrid vehicle;

Based on the accelerator opening and the vehicle speed, determine the driver's required torque;

The first control strategy is generated based on the target speed, the preset power, the target torque and the driver demand torque.
The method for controlling ejection start of a hybrid vehicle according to claim 3, characterized in that the method further includes:

When it is determined that the hybrid vehicle is not in the ejection start preparation state, obtain the first target speed and first target torque of the engine, and obtain the second target torque of the drive motor;

A second control strategy is generated based on the first target speed, the first target torque and the second target torque. The second control strategy includes controlling the engine to output the first target speed and the first target torque, control the drive motor to output the second target torque, and control the current state of the automatic parking system to return to the state when the hybrid vehicle is not in the ejection start preparation state.
The control method for ejection start of a hybrid vehicle according to claim 5, wherein obtaining the first target speed and first target torque of the engine and obtaining the second target torque of the drive motor include:

Calculate the first target speed and the first target torque based on the vehicle energy management algorithm;

Calculate the second target torque based on the drivability filtering algorithm and the driving torque NVH control algorithm;

Obtain the first target rotation speed, the first target torque and the second target torque.
A control device for ejection start of a hybrid vehicle, which is characterized by including:

A collection module, configured to collect working condition information of the hybrid vehicle, where the working condition information includes at least one of the following: the starting state of the hybrid vehicle and the number of effective consecutive D gear shifts;

A judgment module that judges whether the hybrid vehicle is in an ejection starting preparation state according to the working condition information;

The control module, if so, generates a first control strategy based on the number of effective consecutive engagements of the D gear, wherein the first control strategy includes controlling the automatic parking system function of the hybrid vehicle to be turned off, and controlling the braking system. The electronic parking system unlocks, controls the engine to start immediately and maintains the starting state, and controls the engine to maintain output of preset power, target speed and target torque after starting, controls the drive motor to output the driver's required torque, and controls drivability. The filter algorithm and the drive torque NVH control algorithm stop calculating the torque of the drive motor and control the water pump and fan used for cooling the drive motor and generator to rotate at full speed.
A computer-readable storage medium, characterized in that the computer-readable storage medium includes a stored program, wherein when the program is run, the hybrid vehicle according to any one of claims 1 to 6 is executed. Control method of ejection start.
A processor, characterized in that the processor is used to run a program, wherein when the program is run, the control method for ejection start of a hybrid vehicle according to any one of claims 1 to 6 is executed.
A hybrid vehicle, characterized in that the hybrid vehicle ejection start control method is adopted according to any one of claims 1 to 6.