Engine power distribution control method and device, vehicle and storage medium

Abstract

The invention discloses an engine power distribution control method and device, a vehicle and a storage medium. Safety protection parameters in the engine power lifting process and power limiting parameters when engine power is in a high-load state are obtained, and the safety protection parameters comprise cooling system parameters, fuel system parameters and fault detection parameters. The power limiting parameters comprise a driver torque demand, an oil injection torque and an engine load rate; and according to the cooling system parameter, the fuel system parameter, the fault detection parameter, the driver torque demand, the fuel injection torque and the engine load rate, controlling each subsystem in the whole vehicle system to carry out power distribution. According to the method, the output efficiency of the engine can be further improved under the condition that the required power suddenly increases or the output power of the engine is continuously limited, meanwhile, safety protection conditions are considered, and the reliability and emission of the engine are guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of engine control technology, and in particular to an engine power distribution control method, device, vehicle and storage medium. Background Art

[0002] When the engine is running at high load, its power output is usually difficult to meet the driver's needs. Currently, there are roughly two solutions to increase engine power under high load: one is to increase power by increasing the injection amount compensation within a certain period of time; the other is to increase power by identifying whether the engine is in a power-limited state, increasing the intake boost capability, and controlling the intake and exhaust throttle valve opening to increase the air volume.

[0003] The current engine power enhancement scheme can only control a single subsystem (such as the fuel system or air system), but cannot coordinate multiple subsystems to jointly complete the power enhancement function, which results in limited power enhancement. In addition, it is impossible to subdivide the engine's working conditions, and all situations that require power enhancement are "one size fits all". For example, if the driver suddenly steps on the pedal, the existing strategy can only enhance the power for a period of time. If the time is too long, the power will remain the same as the original power or even decrease. Summary of the invention

[0004] The present invention provides an engine power distribution control method, device, vehicle and storage medium to solve the problem that the current engine power enhancement scheme can only control a single subsystem and cannot guarantee power output.

[0005] According to one aspect of the present invention, there is provided an engine power distribution control method, the engine power distribution control method comprising:

[0006] Acquiring safety protection parameters during the engine power boost process and power limiting parameters when the engine power is in a high load state, wherein the safety protection parameters include cooling system parameters, fuel system parameters, and fault detection parameters, and the power limiting parameters include driver torque demand, injection torque, and engine load rate;

[0007] The power distribution is controlled in each subsystem of the vehicle system according to the cooling system parameters, the fuel system parameters, the fault detection parameters, the driver's torque demand, the injection torque and the engine load rate.

[0008] Optionally, the cooling system parameter is a parameter of a cooling system component, and the cooling system parameter is one or more of a water pump water temperature, a cooling fan temperature, a radiator temperature, and an engine body temperature;

[0009] Controlling the cooling system in the vehicle system to distribute power according to the cooling system parameters includes:

[0010] According to one or more of the water pump temperature, the cooling fan temperature, the radiator temperature and the engine body temperature exceeding a set temperature threshold, the cooling system in the vehicle system is controlled to distribute power.

[0011] Optionally, the fuel system parameter is the fuel injection amount of the engine at a current speed;

[0012] Controlling the fuel system in the vehicle system to distribute power according to the fuel system parameters includes:

[0013] If the fuel injection amount of the engine at the current speed exceeds the fuel injection amount corresponding to the corresponding external characteristic curve, the fuel system in the vehicle system is controlled to distribute power.

[0014] Optionally, controlling each subsystem in the vehicle system to distribute power according to the driver's torque demand, the injection torque and the engine load rate includes:

[0015] If the driver's torque demand is greater than a set torque threshold, the injection torque is greater than a set injection threshold, and the engine load rate is greater than a set load rate threshold, each subsystem in the vehicle system is controlled to distribute power accordingly.

[0016] Optionally, before controlling each subsystem in the vehicle system to distribute power according to the driver's torque demand, the injection torque and the engine load rate, the method further includes:

[0017] Obtaining the external characteristic torque, overheat protection limit torque, fault protection limit torque and smoke limit torque of the engine under the current working condition;

[0018] If the driver's torque demand is greater than the set torque threshold, the power distribution is controlled to various subsystems in the vehicle system, including:

[0019] If the driver's torque demand is greater than the external characteristic torque, or the driver's torque demand is greater than the overheating protection limit torque, or the driver's torque demand is greater than the fault protection limit torque, or the driver's torque demand is greater than the smoke limit torque, the engine is controlled to enter the external characteristic limit mode, overheating protection limit mode, fault limit mode or smoke limit mode, and each subsystem in the vehicle system performs corresponding power distribution.

[0020] Optionally, the engine power distribution control method further includes:

[0021] The smallest limit torque among the external characteristic torque, the overheat protection limit torque, the fault protection limit torque and the smoke limit torque is used as the output torque of the engine, and the limit mode corresponding to the smallest limit torque is used as the torque limit mode of the engine.

[0022] Optionally, the engine power distribution control method further includes:

[0023] When it is identified that the engine is in a high-load condition for a period of time exceeding a set time threshold, a downshift request signal is sent to the transmission to control the transmission to change the speed ratio.

[0024] According to another aspect of the present invention, there is provided an engine power distribution control device, the engine power distribution control device comprising:

[0025] A parameter acquisition module, used to acquire safety protection parameters during the engine power boost process and power limit parameters when the engine power is in a high load state, wherein the safety protection parameters include cooling system parameters, fuel system parameters and fault detection parameters, and the power limit parameters include driver torque demand, injection torque and engine load rate;

[0026] The power distribution module is used to control the power distribution of each subsystem in the vehicle system according to the cooling system parameters, the fuel system parameters, the fault detection parameters, the driver's torque demand, the injection torque and the engine load rate.

[0027] According to another aspect of the present invention, a vehicle is provided, the vehicle comprising:

[0028] at least one processor; and,

[0029] a memory communicatively connected to the at least one processor; wherein,

[0030] The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the engine power distribution control method described in any embodiment of the present invention.

[0031] According to another aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the engine power distribution control method described in any embodiment of the present invention when executed.

[0032] The technical solution of the embodiment of the present invention obtains the safety protection parameters in the process of engine power enhancement and the power limitation parameters when the engine power is in a high load state, wherein the safety protection parameters include cooling system parameters, fuel system parameters and fault detection parameters, and the power limitation parameters include driver torque demand, injection torque and engine load rate; and controls each subsystem in the vehicle system to distribute power according to the cooling system parameters, the fuel system parameters, the fault detection parameters, the driver torque demand, the injection torque and the engine load rate. The present invention calculates the engine power limitation state and limitation reasons through each module of the ECU, coordinates the entire engine system to jointly optimize the control mode, and can ensure that when the power demand suddenly increases or the engine output power is continuously limited, the engine output efficiency is further improved to avoid problems such as speed drop when climbing a slope, and at the same time, considers safety protection conditions to ensure engine reliability and emissions.

[0033] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0035] Figure 1 is a flow chart of an engine power distribution control method provided according to an embodiment of the present invention;

[0036] Figure 2 is a structural schematic diagram of an engine power distribution control device provided according to an embodiment of the present invention;

[0037] Figure 3 It is a schematic diagram of the structure of a vehicle for implementing the engine power distribution control method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0039] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order 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, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0040] Figure 1 A flow chart of an engine power distribution control method is provided for an embodiment of the present invention. This embodiment is applicable to the situation where various subsystems are coordinated to perform systematic engine power distribution according to the driver's required power and the engine operating conditions. The engine power distribution control method can be executed by an engine power distribution control device, which can be implemented in the form of hardware and / or software, and the engine power distribution control device can be configured in a vehicle. Figure 1 As shown, the engine power distribution control method includes:

[0041] S110, obtaining safety protection parameters during the engine power boost process and power limit parameters when the engine power is in a high load state, the safety protection parameters include cooling system parameters, fuel system parameters and fault detection parameters, and the power limit parameters include driver torque demand, injection torque and engine load rate.

[0042] The cooling system is mainly responsible for regulating the operating temperature of the engine in the vehicle system to prevent the engine from being damaged due to overheating. The cooling system usually includes components such as a radiator, a water pump, a fan, a coolant, a thermostat, and a coolant pipe. These components work together to ensure that the engine always remains within the optimal operating temperature range, which not only improves the performance and efficiency of the engine, but also extends its service life. In this embodiment, considering the safety protection during the engine power boosting process, the cooling system parameters can be the parameters of the cooling system components, and the cooling system parameters are one or more of the water pump water temperature, the cooling fan temperature, the radiator temperature, and the engine body temperature. That is, during the engine power boosting process, there may be an increase in the temperature of one or more of the water pump water temperature, the cooling fan temperature, the radiator temperature, and the engine body temperature. Based on the temperature increase, it can be determined whether to activate the cooling system.

[0043] The fuel system is also an indispensable part of the vehicle system. The fuel system consists of a fuel pump, a fuel filter, a fuel injector, etc. Its main function is to ensure the fuel flow required by the engine under various working states and conditions. The working state of the fuel system directly affects the combustion efficiency and power output of the engine, so its performance and stability are crucial to the operation of the vehicle. In this embodiment, considering the safety protection during the engine power boost process, the fuel system parameter can be the fuel injection amount of the engine at the current speed.

[0044] When a subsystem of the engine (such as the fuel system, air intake system, ignition system, etc.) fails, the onboard computer will detect these anomalies and automatically adjust the performance of the relevant subsystems or shut down some functions to prevent the fault from further deteriorating or causing more serious damage to the engine. In this embodiment, considering the safety protection during the engine power boost process, the fault detection parameters can be fault parameter information such as fuel system failure, air intake system failure, ignition system failure or emission system failure.

[0045] When the engine power is under high load, the power limiting parameters related to engine control act together on the control system of the engine to ensure that the engine can operate stably and efficiently under high load and avoid possible damage or performance degradation. In this embodiment, the power limiting parameters when the engine power is under high load may include driver torque demand, injection torque, and engine load rate.

[0046] S120, controlling the power distribution of each subsystem in the vehicle system according to the cooling system parameters, the fuel system parameters, the fault detection parameters, the driver's torque demand, the injection torque and the engine load rate.

[0047] In this embodiment, the cooling system in the vehicle system is controlled to distribute power according to the cooling system parameters. For accessories such as fans, thermostats, water pumps, when one or more of the water pump temperature, cooling fan temperature, radiator temperature and engine body temperature exceed the set temperature threshold, the relevant accessories are turned off for a short time on the premise that the corresponding temperature does not exceed the limit, thereby reducing the torque consumption of the vehicle accessories and improving the output power of the engine.

[0048] Furthermore, in order to start post-injection, adjust the advance angle, etc., the supercharger speed is quickly increased to increase the intake volume and improve the combustion efficiency. That is, if the fuel injection amount of the engine at the current speed exceeds the fuel injection amount corresponding to the corresponding external characteristic curve, the fuel system in the whole vehicle system is controlled to distribute power. At the same time, when it is recognized that the engine is under long-term high load, it can cooperate with the timer to increase the fuel injection amount for a short time while ensuring safety.

[0049] When a serious engine fault occurs, controlling the relevant subsystem to a degraded value is a protective measure to avoid the impact on engine safety after the fault function is activated. This degrade strategy is a measure automatically taken by the automobile intelligent control system to ensure the safe operation of the vehicle. In this embodiment, when the engine is judged to have a serious fault based on the fault detection parameters, the relevant subsystem is controlled to a degraded value to avoid the impact on engine safety after the activation of this function. In addition, when emissions deteriorate due to excessive load, the post-processing management system is turned on in time through this state to ensure engine emissions.

[0050] On the basis of the above, the ECU identifies the power limit of the engine under high load, that is, if the driver's torque demand is greater than the set torque threshold, the injection torque is greater than the set injection threshold, and the engine load rate is greater than the set load rate threshold, the corresponding control of the vehicle system subsystems for power distribution. Specifically, the driver's torque demand is greater than the set torque threshold, which usually means that the driver wants the vehicle to provide greater power output, so the accelerator pedal opening will be increased, which can be regarded as the driver's high demand for power; the injection torque refers to the maximum torque that the engine injection system can provide. When the injection torque is greater than the set injection threshold, it means that the engine is injecting fuel at its maximum capacity to meet the demand for high power output; the engine load rate refers to the ratio of the actual torque output to the maximum torque that the engine can output at a specific engine speed. When the engine load rate is greater than the set load rate threshold, it indicates that the engine is under a large workload, which also reflects the vehicle's strong demand for power. In summary, when these three conditions are met at the same time, it can be judged that the vehicle is in a state of strong power demand. In this state, the engine and transmission system need to work together to provide sufficient power to meet the driver's driving intention and the vehicle's operating needs.

[0051] Furthermore, before controlling the power distribution of each subsystem in the vehicle system according to the driver's torque demand, injection torque and engine load rate, it also includes: obtaining the external characteristic torque, overheating protection limit torque, fault protection limit torque and smoke limit torque of the engine under the current working condition.

[0052] The driver's torque demand is the torque demand currently input by the vehicle driver through the pedal, which is calculated by the engine control unit (ECU) based on the opening of the accelerator pedal and the current engine speed; the external characteristic torque is the external characteristic torque of the engine under the current operating conditions, that is, the maximum torque that the engine can output at this speed, which is usually given by the performance curve or data sheet provided by the engine manufacturer; the overheat protection limit torque is the limit torque set by the engine overheat protection system, that is, when the engine cooling system detects that the engine temperature is too high, in order to prevent engine damage, the ECU will reduce the torque output to a safe value; the fault protection limit torque is the limit torque set by the engine fault protection system, that is, when the engine control system detects a fault (such as sensor fault, actuator fault, etc.), in order to protect the engine and avoid further damage, the ECU will limit the torque output; the smoke limit torque is the limit torque set by the smoke limit system, which is usually related to emission control. Under emission control requirements, in order to prevent the engine from emitting excessive smoke, the ECU may limit the torque output to reduce the amount of fuel injection.

[0053] Specifically, if the driver's torque demand is greater than the external characteristic torque, or the driver's torque demand is greater than the overheating protection limit torque, or the driver's torque demand is greater than the fault protection limit torque, or the driver's torque demand is greater than the smoke limit torque, the engine is controlled to enter the external characteristic limit mode, overheating protection limit mode, fault limit mode or smoke limit mode accordingly, and each subsystem in the vehicle system performs corresponding power distribution.

[0054] That is to say, the smallest limit torque among the external characteristic torque, overheat protection limit torque, fault protection limit torque and smoke limit torque is used as the output torque of the engine, and the limit mode corresponding to the smallest limit torque is used as the torque limit mode of the engine, that is, if the driver's required torque is less than or equal to the external characteristic torque, and no other limit torque is in effect, then it is currently in normal driving mode; if the overheat protection limit torque is the smallest, then it is currently in overheat protection mode; if the fault protection limit torque is the smallest, then it is currently in engine fault protection mode; if the smoke limit torque is the smallest, then it is currently in emission control mode.

[0055] It should be noted that the actual vehicle control system may have more complex logic and algorithms to handle these torque limits, including considering the combination and priority of multiple limit conditions. In addition, different vehicle and engine manufacturers may have different torque limit strategies and mode definitions. Therefore, in specific applications, specific analysis and design are required based on actual conditions.

[0056] Based on the above embodiment, when it is identified that the length of time the engine is in a high-load condition exceeds a set time threshold, a downshift request signal is sent to the gearbox to control the gearbox to change the speed ratio and improve the traction of the vehicle, thereby ensuring the improvement of the vehicle's power.

[0057] The technical solution of the embodiment of the present invention obtains the safety protection parameters in the process of engine power enhancement and the power limitation parameters when the engine power is under high load, the safety protection parameters include cooling system parameters, fuel system parameters and fault detection parameters, and the power limitation parameters include driver torque demand, injection torque and engine load rate; according to the cooling system parameters, fuel system parameters, fault detection parameters, driver torque demand, injection torque and engine load rate, each subsystem in the vehicle system is controlled to distribute power. The present invention calculates the engine power limitation state and limitation reasons through each module of the ECU, coordinates the whole engine system to jointly optimize the control, and can ensure that when the power demand suddenly increases or the engine output power is continuously limited, the engine output efficiency is further improved to avoid problems such as speed drop when climbing a slope, and at the same time, the safety protection conditions are considered to ensure the reliability and emission of the engine.

[0058] Based on the same inventive concept, Figure 2 Schematic diagram of the structure of an engine power distribution control device provided by an embodiment of the present invention. Figure 2 As shown, the engine power distribution control device includes:

[0059] A parameter acquisition module 210 is used to acquire safety protection parameters during the engine power boost process and power limit parameters when the engine power is in a high load state, wherein the safety protection parameters include cooling system parameters, fuel system parameters and fault detection parameters, and the power limit parameters include driver torque demand, injection torque and engine load rate;

[0060] The power distribution module 220 is used to control the power distribution of each subsystem in the vehicle system according to the cooling system parameters, fuel system parameters, fault detection parameters, driver torque demand, injection torque and engine load rate.

[0061] Optionally, the cooling system parameter is a parameter of a component of the cooling system, and the cooling system parameter is one or more of a water pump water temperature, a cooling fan temperature, a radiator temperature, and an engine body temperature;

[0062] Control the cooling system in the vehicle system to distribute power according to the cooling system parameters, specifically used for:

[0063] If one or more of the water pump temperature, the cooling fan temperature, the radiator temperature and the engine body temperature exceeds the set temperature threshold, the cooling system in the vehicle system is controlled to distribute power.

[0064] Optionally, the fuel system parameter is the fuel injection amount of the engine at the current speed;

[0065] Control the fuel system in the vehicle system to distribute power according to the fuel system parameters, specifically used for:

[0066] If the fuel injection amount of the engine at the current speed exceeds the fuel injection amount corresponding to the corresponding external characteristic curve, the fuel system in the vehicle system is controlled to distribute power.

[0067] Optionally, the power distribution of each subsystem in the vehicle system is controlled according to the driver's torque demand, injection torque and engine load rate, which is specifically used for:

[0068] If the driver's torque demand is greater than the set torque threshold, the injection torque is greater than the set injection threshold, and the engine load rate is greater than the set load rate threshold, the power distribution is correspondingly controlled for each subsystem in the vehicle system.

[0069] Optionally, the engine power distribution control device further includes:

[0070] A torque limit acquisition module is used to acquire the external characteristic torque, overheat protection limit torque, fault protection limit torque and smoke limit torque of the engine under the current working condition;

[0071] If the driver's torque demand is greater than the set torque threshold, the power distribution of each subsystem in the vehicle system is controlled to be specifically used for:

[0072] If the driver's torque demand is greater than the external characteristic torque, or the driver's torque demand is greater than the overheating protection limit torque, or the driver's torque demand is greater than the fault protection limit torque, or the driver's torque demand is greater than the smoke limit torque, the engine is controlled to enter the external characteristic limit mode, overheating protection limit mode, fault limit mode or smoke limit mode accordingly, and each subsystem in the vehicle system performs corresponding power distribution.

[0073] Optionally, the engine power distribution control device further includes:

[0074] The torque limit mode determination module is used to execute the smallest limit torque among the external characteristic torque, the overheat protection limit torque, the fault protection limit torque and the smoke limit torque as the output torque of the engine, and to use the limit mode corresponding to the smallest limit torque as the torque limit mode of the engine.

[0075] Optionally, the engine power distribution control device further includes:

[0076] The time recognition module is used to send a downshift request signal to the transmission to control the transmission to change the speed ratio when it is recognized that the length of time the engine is in a high-load condition exceeds a set time threshold.

[0077] The engine power distribution control device provided in the embodiment of the present invention can execute the engine power distribution control method provided in any embodiment of the present invention, and has corresponding functional modules and beneficial effects for executing the engine power distribution control method.

[0078] Based on the same inventive concept, Figure 3 FIG. 3 is a schematic diagram showing a structure of a vehicle 310 that can be used to implement an embodiment of the present invention. Figure 3 As shown, the vehicle 310 includes at least one processor 311, and a memory connected to the at least one processor 311, such as a read-only memory (ROM 312), a random access memory (RAM 313), etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 311 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM 312) or the computer program loaded from the storage unit 318 to the random access memory (RAM 313). In RAM 313, various programs and data required for the operation of the vehicle 310 can also be stored. The processor 311, ROM 312 and RAM 313 are connected to each other via a bus 314. An I / O (input / output) interface 315 is also connected to the bus 314.

[0079] A number of components in the vehicle 310 are connected to the I / O interface 315, including: an input unit 316, such as a keyboard, a mouse, etc.; an output unit 317, such as various types of displays, speakers, etc.; a storage unit 318, such as a disk, an optical disk, etc.; and a communication unit 319, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 319 allows the vehicle 310 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0080] The processor 311 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 311 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 311 executes the various methods and processes described above, such as the engine power distribution control method.

[0081] In some embodiments, the engine power distribution control method may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 318. In some embodiments, part or all of the computer program may be loaded and / or installed on the vehicle 310 via the ROM 312 and / or the communication unit 319. When the computer program is loaded into the RAM 313 and executed by the processor 311, one or more steps of the engine power distribution control method described above may be performed. Alternatively, in other embodiments, the processor 311 may be configured to perform the engine power distribution control method in any other suitable manner (e.g., by means of firmware).

[0082] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0083] Computer programs for implementing the 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, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0084] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, device, or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, 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 disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0085] To provide interaction with a user, the systems and techniques described herein may be implemented on a vehicle having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the vehicle. Other types of devices may also be used to provide interaction with the user; for example, the 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, voice input, or tactile input).

[0086] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0087] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0088] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0089] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An engine power distribution control method, characterized in that: include: Acquiring safety protection parameters during the engine power boost process and power limiting parameters when the engine power is in a high load state, wherein the safety protection parameters include cooling system parameters, fuel system parameters, and fault detection parameters, and the power limiting parameters include driver torque demand, injection torque, and engine load rate; The power distribution is controlled in each subsystem of the vehicle system according to the cooling system parameters, the fuel system parameters, the fault detection parameters, the driver's torque demand, the injection torque and the engine load rate.

2. The engine power distribution control method according to claim 1, characterized in that: The cooling system parameters are parameters of cooling system components, and the cooling system parameters are one or more of water pump water temperature, cooling fan temperature, radiator temperature and engine body temperature; Controlling the cooling system in the vehicle system to distribute power according to the cooling system parameters includes: According to one or more of the water pump temperature, the cooling fan temperature, the radiator temperature and the engine body temperature exceeding a set temperature threshold, the cooling system in the vehicle system is controlled to distribute power.

3. The engine power distribution control method according to claim 1, characterized in that: The fuel system parameter is the fuel injection amount of the engine at the current speed; Controlling the fuel system in the vehicle system to distribute power according to the fuel system parameters includes: If the fuel injection amount of the engine at the current speed exceeds the fuel injection amount corresponding to the corresponding external characteristic curve, the fuel system in the vehicle system is controlled to distribute power.

4. The engine power distribution control method according to claim 1, characterized in that: Controlling each subsystem in the vehicle system to distribute power according to the driver's torque demand, the injection torque and the engine load rate, including: If the driver's torque demand is greater than a set torque threshold, the injection torque is greater than a set injection threshold, and the engine load rate is greater than a set load rate threshold, each subsystem in the vehicle system is controlled to distribute power accordingly.

5. The engine power distribution control method according to claim 4, characterized in that: Before controlling each subsystem in the vehicle system to distribute power according to the driver's torque demand, the injection torque and the engine load rate, the method further includes: Obtaining the external characteristic torque, overheat protection limit torque, fault protection limit torque and smoke limit torque of the engine under the current working condition; If the driver's torque demand is greater than the set torque threshold, the power distribution is controlled to various subsystems in the vehicle system, including: If the driver's torque demand is greater than the external characteristic torque, or the driver's torque demand is greater than the overheating protection limit torque, or the driver's torque demand is greater than the fault protection limit torque, or the driver's torque demand is greater than the smoke limit torque, the engine is controlled to enter the external characteristic limit mode, overheating protection limit mode, fault limit mode or smoke limit mode, and each subsystem in the vehicle system performs corresponding power distribution.

6. The engine power distribution control method according to claim 5, characterized in that: The engine power distribution control method further includes: The smallest limit torque among the external characteristic torque, the overheat protection limit torque, the fault protection limit torque and the smoke limit torque is used as the output torque of the engine, and the limit mode corresponding to the smallest limit torque is used as the torque limit mode of the engine.

7. The engine power distribution control method according to claim 1, characterized in that: The engine power distribution control method further includes: When it is identified that the engine is in a high-load condition for a period of time exceeding a set time threshold, a downshift request signal is sent to the transmission to control the transmission to change the speed ratio.

8. An engine power distribution control device, characterized in that: include: A parameter acquisition module, used to acquire safety protection parameters during the engine power boost process and power limit parameters when the engine power is in a high load state, wherein the safety protection parameters include cooling system parameters, fuel system parameters and fault detection parameters, and the power limit parameters include driver torque demand, injection torque and engine load rate; The power distribution module is used to control the power distribution of each subsystem in the vehicle system according to the cooling system parameters, the fuel system parameters, the fault detection parameters, the driver's torque demand, the injection torque and the engine load rate.

9. A vehicle, characterized in that: The vehicle comprises: at least one processor; and, a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the engine power distribution control method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the engine power distribution control method according to any one of claims 1 to 7 when executed.

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