Power distribution method and system of engine management system, readable medium and electronic equipment

Abstract

The embodiment of the invention provides an engine management system power distribution method and system, a readable medium and electronic equipment. The power distribution method of the engine management system comprises the steps that if a hard wire corresponding to an engine ignition signal is in a power-on state or a local network is in a wake-up state, an engine control unit is controlled to enter a starting state; if a hard wire corresponding to the engine ignition signal is kept in a power-on state or a local network is kept in a wake-up state, and a power distribution request instruction from an engine management system is received, an engine control unit is controlled to enter a running state; and forwarding the power distribution request instruction to a forecabin controller through the engine control unit, so as to carry out power distribution through the forecabin controller. According to the technical scheme, the power distribution request instruction from the engine management system is forwarded to the forecabin controller through the engine control unit, power distribution is conducted through the forecabin controller, and the power distribution control mode is flexible.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a power distribution method, system, readable medium and electronic device for an engine management system. Background Art

[0002] With the rapid development of automobile electrification and intelligence, new changes in automobiles have put forward new requirements and challenges for the electronic and electrical architecture and development process of automobiles. The automotive electronic control unit has evolved from a single control unit to a domain controller and supercomputing platform. In order to adapt to the development of the new domain control architecture and integrate into the domain control electrical architecture, the power distribution control of the engine management system also needs to adopt new methods and strategies. Summary of the invention

[0003] The embodiments of the present application provide a power distribution method, system, readable medium and electronic device for an engine management system, thereby achieving flexible power distribution control.

[0004] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by the practice of the present application.

[0005] According to one aspect of an embodiment of the present application, a power distribution method for an engine management system is provided, the method comprising:

[0006] If the hard line corresponding to the engine ignition signal is in the power-on state or the local network is in the awake state, the engine control unit is controlled to enter the start state;

[0007] If the hard wire corresponding to the engine ignition signal remains in a powered-on state or the local network remains in an awakened state, and a power distribution request instruction is received from the engine management system, the engine control unit is controlled to enter a running state;

[0008] The power distribution request instruction is forwarded to the front cabin controller through the engine control unit, so that power is distributed through the front cabin controller.

[0009] According to one aspect of an embodiment of the present application, there is provided an engine management system power distribution system, the system comprising:

[0010] An engine management system for receiving a power distribution request instruction;

[0011] An engine control unit is connected to the engine management system via a bus network, and enters a starting state when the hard line corresponding to the engine ignition signal is in a powered-on state or the local network is in an awakened state, and enters a running state when the hard line corresponding to the engine ignition signal remains in a powered-on state or the local network remains in an awakened state and a power distribution request instruction is received from the engine management system;

[0012] The front cabin controller is connected to the engine control unit via a bus network, and is used to receive a power distribution request instruction forwarded by the engine control unit, so as to distribute power according to the power distribution request instruction.

[0013] In some embodiments of the present application, based on the above technical solution, the engine management system is also used to, if the engine control unit receives a refueling request signal, send the refueling request signal to the engine management system, and obtain a power distribution request instruction according to the refueling request signal through the engine management system.

[0014] In some embodiments of the present application, based on the above technical solution, the engine management system is also used to, if the engine control unit receives a fuel tank cap open signal, send the fuel tank cap open signal to the engine management system, and the engine management system obtains a power distribution request instruction according to the fuel tank cap open signal.

[0015] In some embodiments of the present application, based on the above technical solution, the front cabin controller is also used to supply power to the interface components connected to the front cabin controller through the front cabin controller after the front cabin controller receives the power distribution request instruction, and the interface components include at least any one of the following: ignition coil, upstream oxygen sensor heating module, downstream oxygen sensor heating module, charcoal canister control valve, variable oil pump, fuel leakage evaporation system, fuel tank isolation valve, drive chip, fuel injection module, exhaust gas recirculation module, DVE module.

[0016] In some embodiments of the present application, based on the above technical solution, the system also includes a control module, which is used to control the engine control unit to enter the post-operation state if the hard wire corresponding to the engine ignition signal is converted from a power-on state to a power-off state, the local network is in an unawakened state, and no power distribution request instruction is received from the engine management system.

[0017] In some embodiments of the present application, based on the above technical solution, the control module is also used to control the engine control unit to enter a sleep stage after the engine control unit enters the post-operation state for a preset period of time until it is awakened again next time.

[0018] In some embodiments of the present application, based on the above technical solution, the engine control unit is also used to initialize the hardware and software of the engine control unit.

[0019] According to one aspect of an embodiment of the present application, a computer-readable medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the engine management system power distribution method as described in the above embodiment is implemented.

[0020] According to one aspect of an embodiment of the present application, an electronic device is provided, comprising: one or more processors; a storage device for storing one or more computer programs, wherein when the one or more computer programs are executed by the one or more processors, the electronic device implements the engine management system power distribution method as described in the above embodiments.

[0021] According to one aspect of an embodiment of the present application, a computer program product is provided, the computer program product comprising a computer program, the computer program being stored in a computer-readable storage medium. A processor of an electronic device reads and executes the computer program from the computer-readable storage medium, so that the electronic device executes the engine management system power distribution method provided in the above-mentioned various optional embodiments.

[0022] In the technical solutions provided by some embodiments of the present application, when the hard wire corresponding to the engine ignition signal remains powered on or the local network remains awake, if a power distribution request instruction is received from the engine management system, the engine control unit forwards the power distribution request instruction from the engine management system to the front cabin controller, and the front cabin controller distributes power. In this way, the power distribution control method is more flexible and safe. Since this method does not require the use of a contact relay combined with a fuse for power supply, the use of a main relay for power distribution is reduced, thereby reducing the cost of the entire vehicle.

[0023] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A flow chart of a power distribution method of an engine management system according to an embodiment of the present application is shown.

[0025] Figure 2 A flow chart of a power distribution method of an engine management system according to an embodiment of the present application is shown.

[0026] Figure 3 A block diagram of a power distribution control system of an engine management system according to an embodiment of the present application is shown.

[0027] Figure 4 A schematic diagram of the structure of a computer system suitable for implementing an electronic device of an embodiment of the present application is shown. DETAILED DESCRIPTION

[0028] The exemplary embodiments are now described in a more comprehensive manner with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in various forms and should not be understood as being limited to these examples; on the contrary, the purpose of providing these embodiments is to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0029] In addition, the features, structures or characteristics described in the present application may be combined in one or more embodiments in any suitable manner. In the following description, there are many specific details so that the embodiments of the present application can be fully understood. However, those skilled in the art will appreciate that when implementing the technical scheme of the present application, all the detailed features in the embodiments may not be needed, one or more specific details may be omitted, or other methods, elements, devices, steps, etc. may be adopted.

[0030] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities may be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0031] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

[0032] It should be noted that the "multiple" mentioned in this article refers to two or more. "And / or" describes the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0033] It is understandable that in the specific implementation of this application, related data such as target object information is involved. When the above embodiments of this application are applied to specific products or technologies, user permission or consent is required, and the collection, use and processing of relevant data need to comply with relevant laws, regulations and standards of relevant countries and regions.

[0034] Most fuel and hybrid models currently sold on the market use contact relays + fuses for emergency power supply in the engine management system. This power supply method is irreversible if it encounters overcurrent and burns out during use. The general design is to use fast-blow fuses for protection, but the effect is often poor. Often, the fuse has not yet been actuated and blown, but the relay has already burned out, and some overcurrents are only transient. If the relay burns out, a rescue tow truck is needed to go to a repair shop to handle it, causing great trouble to the vehicle user.

[0035] In addition to the problems of relay + insurance in vehicle use, the common failure modes of the relay itself are: the first failure mode is: the contacts of the relay are loose and cracked. The contacts are the electrical contact parts of the relay to complete the switching of loads. Loose cracking, large size and position deviation, and unreasonable size matching between the reed and the contact will cause the contacts to loosen, thereby affecting the reliability of the relay. The second failure mode is: the relay has poor resistance to mechanical vibration and impact at high and low temperatures and is easily damaged. The third failure mode is: coil failure. If the winding is loose, it will lead to increased magnetic loss and unstable relay attraction.

[0036] In order to solve the above problems, the present application proposes a power distribution control method for an engine management system, the method comprising: if the hard wire corresponding to the engine ignition signal is in a power-on state or the local network is in a wake-up state, then the engine control unit is controlled to enter a starting state; if the hard wire corresponding to the engine ignition signal remains in a power-on state or the local network remains in a wake-up state, and a power distribution request instruction is received from the engine management system, then the engine control unit is controlled to enter an operating state; the power distribution request instruction is forwarded to the front cabin controller through the engine control unit to distribute power through the front cabin controller.

[0037] In this way, when the hard wire corresponding to the engine ignition signal remains powered on or the local network remains awake, if a power distribution request instruction is received from the engine management system, the engine control unit forwards the power distribution request instruction from the engine management system to the front cabin controller, and the front cabin controller distributes power. In this way, the power distribution control method is more flexible and safe. Since this method does not require the combination of contact relays and fuses for power supply, it reduces the use of main relays for power distribution, thereby reducing the cost of the entire vehicle.

[0038] The implementation details of the technical solution of the embodiment of the present application are described in detail below:

[0039] Figure 1 A flow chart of a power distribution method for an engine management system according to an embodiment of the present application is shown, and the power distribution method for the engine management system can be executed by a controller. Figure 1As shown, the power distribution method of the engine management system at least includes S101 to S103, which are described in detail as follows:

[0040] In S101 , if the hard line corresponding to the engine ignition signal is in a powered-on state or the local network is in a wake-up state, the engine control unit is controlled to enter a starting state.

[0041] In some optional embodiments, the hard wire corresponding to the engine ignition signal may be, for example, a KL15 hard wire, wherein the KL15 hard wire refers to waking up the network by means of the KL15 hard wire, indicating that there are no nodes in the current network participating in the communication. In order to quickly wake up the network and establish the communication function, the node awakened by the KL15 hard wire needs to actively wake up the network, and then wake up other nodes on the network. Therefore, the KL15 hard wire can be regarded as an active wake-up source, and when the KL15 hard wire is in the power-on state, the network is considered to be in the awakened state. When the KL15 hard wire is powered on, a 12V normal power supply is used, the power-on voltage is not less than 4.1V, and the power-off voltage is not greater than 1.7V.

[0042] Specifically for the local network, in the traditional vehicle network management, the vehicle controllers are either awakened at the same time or asleep at the same time. However, in some functional scenarios, such as vehicle charging scenarios and sentinel mode, only some controllers in some network segments need to participate in the work, rather than all controllers in all network segments. Based on the above requirements, the characteristics of the local network are defined in its network management, allowing the vehicle network to be further divided into different local networks by adopting some rules. In a specific functional scenario, the controllers in the local network related to the functional scenario are in working state, while the controllers in the irrelevant local network are still in a low power consumption state, so as to further reduce energy consumption. The local network in the embodiment of the present application divides the vehicle controller into different network clusters (Partial Network Cluster, PNC) according to the function. Each PNC is a virtual local network. The controllers in the PNC can be in the same network segment or across different network segments, and each PNC supports separate wake-up and sleep.

[0043] When the hard line corresponding to the engine ignition signal is in the power-on state or the local network is in the awake state, the engine control unit is controlled to enter the start state. By controlling the engine control unit to enter the start state, it is beneficial for the subsequent engine control unit to quickly enter the normal working state.

[0044] In S102, if the hard line corresponding to the engine ignition signal remains in the powered-on state or the local network remains in the awakened state, and a power distribution request instruction is received from the engine management system, the engine control unit is controlled to enter the running state.

[0045] In some optional embodiments, when the KL15 hard line remains powered on, the voltage cannot drop below 3.1V and the duration is less than 4ms. When the local network remains awake, the PNC network wake-up first enters the network management message fast sending state in Repeat MessageState, and the number of fast message sending times is CanNmImmediateNmTransmissions (here the NM message is generally sent 10 times in a 20ms cycle), and then enters the NM message normal sending state (NM cycle 200ms continuous sending 800ms). In addition, the power distribution request instruction can be a request instruction sent to the engine management system through other devices to indicate the need for power distribution control. When the hard line corresponding to the engine ignition signal remains powered on or the local network remains awake, and after receiving the power distribution request instruction from the engine management system, the engine control unit is controlled to enter the running state, so that the engine control unit enters the normal working state, which is beneficial to the subsequent power distribution control.

[0046] In S103, the power distribution request instruction is forwarded to the front cabin controller through the engine control unit, so that power is distributed through the front cabin controller.

[0047] In some optional embodiments, the power distribution request instruction from the engine management system is forwarded to the front cabin controller by the engine control unit, and the power is distributed by the front cabin controller. In this way, since it does not need to use a contact relay combined with a fuse to supply power, the use of main relays for power distribution is reduced, thereby reducing the cost of the entire vehicle.

[0048] In the technical solutions provided by some embodiments of the present application, when the hard wire corresponding to the engine ignition signal remains powered on or the local network remains awake, if a power distribution request instruction is received from the engine management system, the engine control unit forwards the power distribution request instruction from the engine management system to the front cabin controller, and the front cabin controller distributes power. In this way, the power distribution control method is more flexible and safe. Since this method does not require the use of a contact relay combined with a fuse for power supply, the use of a main relay for power distribution is reduced, thereby reducing the cost of the entire vehicle.

[0049] In one embodiment of the present application, after controlling the engine control unit to enter the starting state, the method further includes:

[0050] Initializes the hardware and software of the engine control unit.

[0051] After the engine control unit enters the start state and before the engine control unit enters the running state, the hardware and software of the engine control unit need to be initialized. By initializing the hardware, the driver is initialized. By initializing the software, the variables are initialized. By initializing the engine control unit, it is ensured that the engine control unit is in the best state before normal operation.

[0052] In one embodiment of the present application, the method further includes:

[0053] If the engine control unit receives a refueling request signal, the refueling request signal is sent to the engine management system, and the engine management system obtains a power distribution request instruction according to the refueling request signal.

[0054] In this way, the engine management system obtains a power distribution request instruction according to the refueling request signal, which is beneficial to the subsequent power distribution control.

[0055] In one embodiment of the present application, the method further includes:

[0056] If the engine control unit receives a fuel tank cap open signal, the fuel tank cap open signal is sent to the engine management system, and the engine management system obtains a power distribution request instruction according to the fuel tank cap open signal.

[0057] In this way, the engine management system obtains a power distribution request instruction according to the fuel tank cap opening signal, which is beneficial to the subsequent power distribution control.

[0058] In one embodiment of the present application, forwarding a power distribution request instruction to a front cabin controller through an engine control unit so as to distribute power through the front cabin controller includes:

[0059] After the front cabin controller receives the power distribution request instruction, power is supplied to the interface components connected to the front cabin controller through the front cabin controller, and the interface components include at least any one of the following: ignition coil, upstream oxygen sensor heating module, downstream oxygen sensor heating module, charcoal canister control valve, variable oil pump, fuel leakage evaporation system, fuel tank isolation valve, driver chip, fuel injection module, exhaust gas recirculation module, DVE module.

[0060] In some optional embodiments, the engine control unit requests the front cabin controller ZCUF to distribute power to the ignition coils (1, 2, 3, 4), upstream oxygen sensor heating, downstream oxygen sensor heating, carbon canister control valve, electric VVT (intake), VVT (exhaust), variable oil pump, fuel leakage evaporation system DMTL, fuel tank isolation valve, driver chip, fuel injection module, EGR module, and DVE module. In this way, after the front cabin controller receives the power distribution request instruction, the interface components connected to the front cabin controller are powered by the front cabin controller, which is conducive to powering each interface component. This power distribution control method is more flexible and safe.

[0061] In one embodiment of the present application, the method further includes:

[0062] If the hard line corresponding to the engine ignition signal is converted from the power-on state to the power-off state, the local network is in the non-awakened state, and no power distribution request instruction is received from the engine management system, the engine control unit is controlled to enter the post-operation state.

[0063] In some optional embodiments, the post-operating state refers to an abnormal operating state. In the post-operating state, the driver has already turned off the power. At this time, the engine control unit will maintain the post-operating state to maintain some storage such as self-learning during normal operation, so as to facilitate the operation of the engine control unit.

[0064] In addition, KL15 is powered off (during the KL15 power-off period, the voltage cannot rise above 3.6V and the duration is less than 4ms) and there is no PNC wake-up (preparing for sleep state, any ECU in the network releases the network when there is no network demand, that is, stops sending NM messages), drive system activation, refueling request, and fuel tank cap opening.

[0065] In one embodiment of the present application, the method further includes:

[0066] After the engine control unit enters the post-operation state for a preset period of time, the engine control unit is controlled to enter a dormant stage until it is awakened again next time.

[0067] In order to understand the technical solution of this application as a whole, see Figure 2 , Figure 2 A flow chart of a power distribution method for an engine management system according to an embodiment of the present application is shown, and the power distribution method for an engine management system includes:

[0068] KL15 is powered on or PNC is awakened; the MCU is started; the hardware and driver are initialized; the software and variables are initialized; it is determined whether KL15 is maintained, the PNC network is maintained, the drive system is activated, refueling is requested, and the fuel tank cap is opened; if so, request the regional controller to supply power to the ignition coil, upstream oxygen sensor heating, downstream oxygen sensor heating, carbon canister control valve, electric VVT (intake), VVT (exhaust), variable oil pump, fuel leakage evaporation system DMTL, fuel tank isolation valve, driver chip, injection module, EGR module, and DVE module; it is determined that KL15 is powered off and there is no PNC wake-up, drive system activation, refueling request, or fuel tank cap opening; if so, enter the post-operation state; operation ends and sleep.

[0069] In this way, the power distribution control method is flexible, faults can be detected and repaired, and power consumption monitoring and management can be performed, while the cost of relays and fuses can be reduced.

[0070] The following describes an embodiment of the device of the present application, which can be used to execute the power distribution method of the engine management system in the above embodiment of the present application. For details not disclosed in the embodiment of the device of the present application, please refer to the embodiment of the power distribution method of the engine management system in the above embodiment of the present application.

[0071] Figure 3 A block diagram of a power distribution control device of an engine management system according to an embodiment of the present application is shown.

[0072] Reference Figure 3 As shown, the engine management system power distribution system according to one embodiment of the present application includes:

[0073] An engine management system (EMS) for receiving power distribution request instructions;

[0074] The engine control unit (CCU) is connected to the engine management system through a bus network. When the hard line corresponding to the engine ignition signal is in a powered-on state or the local network is in an awakened state, it enters the starting state. When the hard line corresponding to the engine ignition signal remains in a powered-on state or the local network remains in an awakened state and receives a power distribution request instruction from the engine management system, it enters the running state.

[0075] The front cabin controller (ZCU-F) is connected to the engine control unit through a bus network and is used to receive the power distribution request instruction forwarded by the engine control unit to distribute power according to the power distribution request instruction.

[0076] In some embodiments of the present application, based on the above technical solution, the engine management system is also used to, if the engine control unit receives a refueling request signal, send the refueling request signal to the engine management system, and obtain a power distribution request instruction according to the refueling request signal through the engine management system.

[0077] In some embodiments of the present application, based on the above technical solution, the engine management system is also used to, if the engine control unit receives a fuel tank cap open signal, send the fuel tank cap open signal to the engine management system, and obtain a power distribution request instruction according to the fuel tank cap open signal through the engine management system.

[0078] In some embodiments of the present application, based on the above technical solution, the front cabin controller is also used to, after the front cabin controller receives the power distribution request instruction, supply power to the interface components connected to the front cabin controller through the front cabin controller, and the interface components include at least any one of the following: ignition coil, upstream oxygen sensor heating module, downstream oxygen sensor heating module, charcoal canister control valve, variable oil pump, fuel leakage evaporation system, fuel tank isolation valve, drive chip, fuel injection module, exhaust gas recirculation module, DVE module.

[0079] In some embodiments of the present application, based on the above technical solution, the system also includes a control module, which is used to control the engine control unit to enter the post-operation state if the hard wire corresponding to the engine ignition signal is converted from the power-on state to the power-off state, the local network is in an unawakened state, and no power distribution request instruction is received from the engine management system.

[0080] In some embodiments of the present application, based on the above technical solution, the control module is also used to control the engine control unit to enter a sleep stage after the engine control unit enters the post-operation state for a preset period of time until it is awakened again next time.

[0081] In some embodiments of the present application, based on the above technical solution, the engine control unit is also used to initialize the hardware and software of the engine control unit.

[0082] Figure 4 A schematic diagram of the structure of a computer system suitable for implementing an electronic device of an embodiment of the present application is shown.

[0083] It should be noted that Figure 4 The computer system 400 of the electronic device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0084] like Figure 4As shown, the computer system 400 includes a central processing unit (CPU) 401, which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM) 402 or the program loaded from the storage part 408 to the random access memory (RAM) 403, such as executing the method in the above embodiment. In the RAM 403, various programs and data required for system operation are also stored. The CPU 401, ROM 402 and RAM 403 are connected to each other through a bus 404. An input / output (I / O) interface 405 is also connected to the bus 404.

[0085] The following components are connected to the I / O interface 405: an input section 406 including a keyboard, a mouse, etc.; an output section 407 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker; a storage section 408 including a hard disk, etc.; and a communication section 409 including a network interface card such as a LAN (Local Area Network) card, a modem, etc. The communication section 409 performs communication processing via a network such as the Internet. A drive 410 is also connected to the I / O interface 405 as needed. A removable medium 411, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 410 as needed so that a computer program read therefrom is installed into the storage section 408 as needed.

[0086] In particular, according to an embodiment of the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present application includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a computer program for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication section 409, and / or installed from a removable medium 411. When the computer program is executed by a central processing unit (CPU) 401, various functions defined in the system of the present application are executed.

[0087] It should be noted that the computer-readable medium shown in the embodiment of the present application may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a 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 above. In the present application, a computer-readable storage medium may be any tangible medium containing or storing a program, which may be used by an instruction execution system, device or device or used in combination with it. In the present application, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, wherein a computer-readable computer program is carried. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, which may send, propagate, or transmit programs for use by or in conjunction with an instruction execution system, apparatus, or device. The computer program contained on the computer-readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the above.

[0088] The flowchart and block diagram in the accompanying drawings illustrate the possible architecture, functions and operations of the system, method and computer program product according to various embodiments of the present application. Wherein, each box in the flowchart or block diagram can represent a module, a program segment, or a part of the code, and the above-mentioned module, program segment, or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flowchart, and the combination of the boxes in the block diagram or flowchart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and a computer program.

[0089] The units involved in the embodiments described in this application may be implemented by software or hardware, and the units described may also be set in a processor. The names of these units do not, in some cases, constitute limitations on the units themselves.

[0090] As another aspect, the present application also provides a computer-readable medium, which may be included in the electronic device described in the above embodiment; or may exist independently without being assembled into the electronic device. The above computer-readable medium carries one or more computer programs, and when the above one or more computer programs are executed by an electronic device, the electronic device implements the method in the above embodiment.

[0091] It should be noted that, although several modules or units of the equipment for action execution are mentioned in the above detailed description, this division is not mandatory. In fact, according to the embodiments of the present application, the features and functions of two or more modules or units described above can be embodied in one module or unit. On the contrary, the features and functions of one module or unit described above can be further divided into being embodied by multiple modules or units.

[0092] Through the description of the above implementation methods, it is easy for those skilled in the art to understand that the example implementation methods described here can be implemented by software or by combining software with necessary hardware. Therefore, the technical solution according to the implementation methods of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which can be a personal computer, a server, a touch terminal, or a network device, etc.) to execute the method according to the implementation methods of the present application.

[0093] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the embodiments disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary technical means in the art that are not disclosed in the present application.

[0094] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A power distribution method for an engine management system, characterized in that: The method comprises: If the hard line corresponding to the engine ignition signal is in the power-on state or the local network is in the awake state, the engine control unit is controlled to enter the start state; If the hard wire corresponding to the engine ignition signal remains in a powered-on state or the local network remains in an awakened state, and a power distribution request instruction is received from the engine management system, the engine control unit is controlled to enter a running state; The power distribution request instruction is forwarded to the front cabin controller through the engine control unit, so that power is distributed through the front cabin controller.

2. The power distribution method of the engine management system according to claim 1, characterized in that: The method further comprises: If the engine control unit receives a refueling request signal, the refueling request signal is sent to the engine management system, and the engine management system obtains a power distribution request instruction according to the refueling request signal.

3. The power distribution method of an engine management system according to claim 1, characterized in that: The method further comprises: If the engine control unit receives a fuel tank cap opening signal, the fuel tank cap opening signal is sent to the engine management system, and the engine management system obtains a power distribution request instruction according to the fuel tank cap opening signal.

4. The power distribution method of an engine management system according to claim 1, characterized in that: The step of forwarding the power distribution request instruction to the front cabin controller through the engine control unit so as to distribute power through the front cabin controller includes: After the front cabin controller receives the power distribution request instruction, the interface component connected to the front cabin controller is powered by the front cabin controller, and the interface component includes at least any one of the following: ignition coil, upstream oxygen sensor heating module, downstream oxygen sensor heating module, charcoal canister control valve, variable oil pump, fuel leakage evaporation system, fuel tank isolation valve, drive chip, injection module, exhaust gas recirculation module, DVE module.

5. The power distribution method of an engine management system according to claim 1, characterized in that: The method further comprises: If the hard line corresponding to the engine ignition signal is converted from a power-on state to a power-off state, the local network is in an unawakened state, and no power distribution request instruction is received from the engine management system, the engine control unit is controlled to enter a post-operation state.

6. The power distribution method of the engine management system according to claim 5, characterized in that: The method further comprises: After the engine control unit enters the post-operation state for a preset period of time, the engine control unit is controlled to enter a dormant stage until it is awakened again next time.

7. The power distribution method of an engine management system according to claim 1, characterized in that: After controlling the engine control unit to enter a starting state, the method further includes: The hardware and software of the engine control unit are initialized.

8. An engine management system power distribution system, applied to the engine management system power distribution method according to any one of claims 1 to 7, characterized in that: The system comprises: An engine management system for receiving a power distribution request instruction; An engine control unit is connected to the engine management system via a bus network, and enters a starting state when the hard line corresponding to the engine ignition signal is in a powered-on state or the local network is in an awakened state, and enters a running state when the hard line corresponding to the engine ignition signal remains in a powered-on state or the local network remains in an awakened state and a power distribution request instruction is received from the engine management system; The front cabin controller is connected to the engine control unit via a bus network, and is used to receive a power distribution request instruction forwarded by the engine control unit, so as to distribute power according to the power distribution request instruction.

9. A computer-readable medium, characterized in that The computer readable medium stores a computer program, which, when executed by a processor, implements the power distribution method of an engine management system according to any one of claims 1 to 7.

10. An electronic device, characterized in that: include: processor; as well as A memory, configured to store executable instructions of the processor; Wherein, the processor is configured to perform the engine management system power distribution method according to any one of claims 1 to 7 by executing the executable instructions.

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