WO2022083715A1 - 一种点火角修正方法、装置、设备及存储介质 - Google Patents

一种点火角修正方法、装置、设备及存储介质 Download PDF

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Publication number
WO2022083715A1
WO2022083715A1 PCT/CN2021/125496 CN2021125496W WO2022083715A1 WO 2022083715 A1 WO2022083715 A1 WO 2022083715A1 CN 2021125496 W CN2021125496 W CN 2021125496W WO 2022083715 A1 WO2022083715 A1 WO 2022083715A1
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Prior art keywords
ignition
engine
angle
stored
target area
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PCT/CN2021/125496
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English (en)
French (fr)
Inventor
周鑫
孙鹏远
王强
孙超
时宪
刘霄雨
刘笑飞
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中国第一汽车股份有限公司
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Publication of WO2022083715A1 publication Critical patent/WO2022083715A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P5/00—Advancing or retarding ignition; Control therefor
    • F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
    • F02P5/05—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using mechanical means
    • F02P5/06—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using mechanical means dependent on engine speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P5/00—Advancing or retarding ignition; Control therefor
    • F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
    • F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
    • F02P5/15—Digital data processing
    • F02P5/152—Digital data processing dependent on pinking
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Definitions

  • the embodiments of the present application relate to vehicle technology, for example, to an ignition angle correction method, device, device, and storage medium.
  • Knock is an inevitable and destructive combustion phenomenon that occurs in the cylinder of a gasoline engine. Engine knock will not only damage the cylinder, but also lead to deterioration of combustion, reduce the power output of the engine, and affect the exhaust gas of the car. emission.
  • the mixture in the combustion chamber is prone to knocking, and the ignition angle needs to be adjusted to suppress the knocking and protect the engine.
  • the method commonly used in the industry is to identify the occurrence of knocking through the knock sensor, and then adjust the ignition angle to suppress the tendency of the subsequent knocking. This adjustment method has passivity and hysteresis. Because the detonation must have been generated before measures can be taken.
  • Embodiments of the present application provide an ignition angle correction method, device, device, and storage medium, so as to implement active ignition angle correction when an engine operating condition changes, reduce the possibility of knocking, and have initiative and flexibility , not only can better protect the safe operation of the engine, but also can improve the thermal efficiency of combustion.
  • an embodiment of the present application provides an ignition angle correction method, including:
  • ignition angle correction is performed according to a pre-stored ignition thrust angle corresponding to the target region.
  • an embodiment of the present application also provides an ignition angle correction device, the device comprising:
  • Get module set to get engine speed and engine load
  • a correction module configured to perform ignition angle correction according to a pre-stored ignition thrust angle corresponding to the target area in response to determining that the engine is running to a target area according to the engine speed and the engine load.
  • an embodiment of the present application further provides a computer device, including a memory, a processor, and a computer program stored in the memory and running on the processor, the processor implementing the program as described in the present application when the processor executes the program.
  • a computer device including a memory, a processor, and a computer program stored in the memory and running on the processor, the processor implementing the program as described in the present application when the processor executes the program. The method described in the first aspect.
  • an embodiment of the present application further provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, implements the method described in the first aspect of the present application.
  • Fig. 1 is the flow chart of a kind of ignition angle correction method in the first embodiment of the present application
  • FIG. 1a is a schematic diagram of area division in Embodiment 1 of the present application.
  • FIG. 1b is a schematic diagram of a storage principle in Embodiment 1 of the present application.
  • FIG. 1c is a schematic diagram of a method for updating the knock self-learning value in Embodiment 1 of the present application;
  • Fig. 2 is the structural representation of a kind of ignition angle correction device in the second embodiment of the present application
  • FIG. 3 is a schematic structural diagram of a computer device in Embodiment 3 of the present application.
  • FIG. 1 is a flowchart of a method for correcting ignition angle provided by the first embodiment of the application. This embodiment can be applied to the case of correcting the ignition angle of the engine when the operating conditions of the engine are changed.
  • the ignition angle correction device is implemented, and the device can be implemented by software and/or hardware. As shown in FIG. 1, the method includes the following steps:
  • the engine speed and engine load may be acquired through sensor acquisition, or may be acquired through a controller area network (Controller Area Network, CAN) bus, which is not limited in this embodiment of the present application.
  • controller area network Controller Area Network, CAN
  • the ignition thrust angle is a value that reduces the ignition angle. For example, if the basic ignition angle is 2 and the ignition thrust angle is -2, the actual output ignition angle is 0. It should be noted that the The ignition thrust angle is generally negative or zero.
  • the target area is an area obtained by dividing the engine operating conditions in advance. For example, if the engine has 4 cylinders, the engine operating conditions are divided into 16 areas, and one area is a low load area. , since the engine is in the low load region, it can run smoothly without adjusting the ignition angle, so the working conditions can only be divided from the middle load region. That is to say, starting from the middle load zone, the working conditions are divided, and 15 zones are obtained.
  • the target area is any area obtained by dividing the engine operating conditions.
  • the pre-stored ignition thrust angle may be the ignition thrust angle obtained after correcting the ignition angle when the engine operating region changes, or may be a preset ignition thrust angle, to which the embodiment of the present application applies. No restrictions apply.
  • ignition thrust angles pre-stored in different target areas may be the same or may be different.
  • the method before performing ignition angle correction according to the pre-stored ignition thrust angle corresponding to the target area if it is determined according to the engine speed and the engine load that the engine runs to a target area, the method further includes:
  • the ignition push angle is determined according to the ignition angle correction result, and the ignition push angle is stored in a target address, where the target address is an address corresponding to the target area.
  • how many regions the engine operating conditions are divided into is related to how many cylinders the engine is, and also related to the processing capability of the computer, which is not limited in the embodiment of the present application.
  • the pre-stored ignition push angle corresponding to the target area that is, the ignition push angle stored in the target address corresponding to the target area.
  • the target area may be any area, for example, if the engine runs from the A area to the B area, the target area is the B area, which is not limited in this embodiment of the present application.
  • each region is assigned an address for storing the ignition thrust angle.
  • the method further includes:
  • a minimum value of the corrected ignition thrust angle and the pre-stored ignition thrust angle is stored to the target address.
  • the method further includes:
  • the ignition angle is corrected again to obtain the target ignition thrust angle
  • the pre-stored ignition thrust angle is updated to the target ignition thrust angle and the pre-stored ignition thrust angle. The sum of the preset steps.
  • the preset step size is preset, and the preset step size may be 0.75, or may be other values, which are not limited in this embodiment of the present application. It should be noted that the target ignition thrust angle in this application is obtained by dynamically adjusting the basic ignition angle, and is the ignition angle actually output by the engine.
  • the knocking thrust angle value T refers to the “target ignition thrust angle”
  • the step size ⁇ refers to the “preset step size”
  • the knock self-learning value M i refers to the pre-stored ignition thrust angle value
  • the method further includes:
  • the pre-stored ignition thrust angle is updated to the pre-stored ignition thrust angle.
  • the preset value is a positive number, for example, may be 0.9, or may be 1, which is not limited in this embodiment of the present application.
  • the method further includes:
  • the pre-stored ignition thrust angle is updated to the sum of the pre-stored ignition thrust angle and the preset step size.
  • the current thrust angle value is the target ignition thrust angle, that is, the ignition angle actually output by the engine.
  • the current knock self-learning value plus a positive number ⁇ is still smaller than the current thrust angle value T, or in the absence of knocking, the current thrust Whether the angle value T is 0, if one of the two conditions is true, it means that the current engine can still run smoothly even with a small or no thrust angle, and the knock self-learning value M i needs to be increased by a step size ⁇ .
  • the ignition angle correction is performed according to the pre-stored ignition thrust angle corresponding to the target area, including:
  • the sum of the basic ignition angle and the pre-stored ignition push angle is used as the ignition angle actually output by the engine.
  • the corresponding knock self-learning value in the new area is taken out and added to the basic ignition angle Ig , so that after the engine enters a new operating condition, it actively pushes the angle to suppress A knock occurs.
  • I out is the actual output ignition angle
  • I g is the basic ignition angle
  • Mi is the knock self-learning value, that is, the pre-stored ignition push angle.
  • the correction of the ignition angle based on the knocking self-learning is divided into the following processes: 1. division of the engine operating condition area, 2. storing the knocking self-learning value, 3. updating the knocking self-learning value, Fourth, the self-learning value of knocking corrects the ignition angle.
  • Area division First, divide the full operating conditions of the engine into 15 areas, as shown in Figure 1a, in Figure 1a, 1, 2, 3, and 4 are the cylinder numbers, and the storage sequence is the engine ignition sequence 1 -3-4-2, the level of which indicates the size of the stored value (ie the ignition push angle). Each region corresponds to a range of engine operating conditions. In each area, an address is allocated to each cylinder to store the ignition thrust angle, and the stored ignition thrust angle is the knock self-learning value.
  • each cylinder corresponds to an ignition thrust angle
  • the ignition thrust angle corresponding to each cylinder is stored in the address of each cylinder. For example, if the current engine is 4 cylinders, the ignition thrust angle corresponding to cylinder 1 is stored. Store it in the address corresponding to cylinder 1, store the ignition thrust angle corresponding to cylinder 2 in the address corresponding to cylinder 2, store the ignition thrust angle corresponding to cylinder 3 in the address corresponding to cylinder 3, and store the ignition thrust angle corresponding to cylinder 4 in the address corresponding to cylinder 3. The angle is stored in the address corresponding to cylinder 4. When the engine ignites, the stored ignition thrust angle corresponding to each cylinder is obtained, and the sum of the stored ignition thrust angle and the basic ignition angle is used as the actual output ignition angle.
  • the load range divided by the working conditions starts from the middle load area. After the working conditions are divided, when the engine operating area changes, the corresponding The area and the storage address of the knock self-learning value will also be changed.
  • Knock self-learning value update The stored knock self-learning value needs to be continuously updated to keep it within a certain range with the actual output ignition angle of the engine.
  • the update method is: when the engine is running stably in this area, if the Knock, and the value after the knocking push angle value T plus a step size ⁇ is smaller than the knock self-learning value Mi , it means that the engine operating conditions at this time require a larger push angle value, and the self-learning push angle value Insufficient, it is necessary to update the knocking self-learning value to T+ ⁇ ; if the value after the knocking push angle value T plus a step size ⁇ is greater than or equal to the knocking self-learning value Mi , it means that the knocking self-learning value is at this time.
  • the learning value can be adapted to the current working conditions and does not need to be updated; if the engine runs smoothly and no knocking occurs, judge whether the current knocking self-learning value plus a positive number ⁇ is still less than the current thrust angle value T, or if there is no knocking. In the case of knocking, whether the current thrust angle value T is 0, and if one of the two conditions is true, it means that the current engine can still run smoothly even with a small or no thrust angle, and the knocking needs to be automatically adjusted.
  • the learning value Mi is increased by a step size ⁇ , otherwise it means that the engine is still running at a larger thrust angle value, and the knock self-learning value Mi does not need to be updated.
  • the update method is shown in Figure 1c.
  • This update method can make the knock self-learning value change in the same direction with the change of the engine thrust angle value, thereby ensuring the validity of the knock self-learning value.
  • Both the push angle value and the knock self-learning value are negative numbers, that is, T ⁇ 0, M i ⁇ 0.
  • the principle of correcting the ignition angle based on the knocking self-learning value is: if the knocking self-learning value stored in each area is not 0, it means that the engine had knocked when the engine was running in this area last time, and the ignition angle A thrust angle has occurred and the engine has been running at the ignition angle thrust angle state. It also shows that the engine can run smoothly under this condition only when the ignition angle is pushed back. When the engine leaves this working condition for a period of time, it returns to this working condition. If only the basic ignition angle is used for ignition, the engine is likely to have knocking, and the thrust angle is also required.
  • the technical solution of this embodiment is to obtain the engine speed and the engine load; if it is determined according to the engine speed and the engine load that the engine runs to the target area, the ignition angle is calculated according to the pre-stored ignition thrust angle corresponding to the target area. Correction to achieve active ignition angle correction when the engine operating conditions change, reducing the possibility of knocking, with initiative and flexibility, not only can better protect the safe operation of the engine, but also can improve the combustion thermal efficiency .
  • FIG. 2 is a schematic structural diagram of an ignition angle correction device provided in Embodiment 2 of the present application. This embodiment can be applied to the case of correcting the ignition angle of the engine when the operating conditions of the engine change.
  • the device can be implemented in software and/or hardware, and the device can be integrated into any device that provides the ignition angle correction function. As shown in FIG. 2 , the ignition angle correction device includes: an acquisition module 210 and a correction module 220 .
  • the obtaining module 210 is configured to obtain the engine speed and the engine load
  • the correction module 220 is configured to perform ignition angle correction according to a pre-stored ignition thrust angle corresponding to the target area if it is determined according to the engine speed and the engine load that the engine runs to a target area.
  • the ignition angle correction device further includes:
  • a dividing module configured to divide the engine operating condition into at least seven regions
  • a first determining module configured to determine that the engine runs to a target area according to the engine speed and the engine load, and then correct the ignition angle
  • the first storage module is configured to determine the ignition push angle according to the ignition angle correction result, and store the ignition push angle to a target address, where the target address is an address corresponding to the target area.
  • the ignition angle correction device further includes:
  • a second determining module configured to obtain the minimum value of the corrected ignition thrust angle and the pre-stored ignition thrust angle if it is determined that the engine leaves the target area according to the engine speed and the engine load;
  • the second storage module is configured to store the minimum value of the corrected ignition thrust angle and the pre-stored ignition thrust angle to the target address.
  • the ignition angle correction device further includes:
  • an identification module configured to correct the ignition angle when the engine is running stably in the engine operating area, if knocking is identified, to obtain a target ignition thrust angle
  • the first update module is configured to update the pre-stored ignition thrust angle to the sum of the target ignition thrust angle and the preset step size if the sum of the target ignition thrust angle and the preset step size is less than the pre-stored ignition thrust angle .
  • the ignition angle correction device further includes:
  • the second update module is set to, when the engine is running stably in the engine operating area, no knocking is recognized, and the sum of the pre-stored ignition thrust angle and the preset value is less than the target ignition thrust angle, then the pre-stored ignition thrust angle is The thrust angle is updated to be the sum of the pre-stored ignition thrust angle and a preset step size, wherein the preset value is greater than zero.
  • the ignition angle correction device further includes:
  • the pre-stored ignition thrust angle is updated to the sum of the pre-stored ignition thrust angle and the preset step size.
  • the correction module 220 implements the ignition angle correction according to the pre-stored ignition thrust angle corresponding to the target area if it is determined according to the engine speed and the engine load that the engine is running to a target area:
  • the sum of the basic ignition angle and the pre-stored ignition push angle is used as the ignition angle actually output by the engine.
  • the above product can execute the method provided by any embodiment of the present application, and has functional modules corresponding to the execution method.
  • the technical solution of this embodiment is to obtain the engine speed and the engine load; if it is determined according to the engine speed and the engine load that the engine runs to the target area, the ignition angle is calculated according to the pre-stored ignition thrust angle corresponding to the target area. Correction to achieve active ignition angle correction when the engine operating conditions change, reducing the possibility of knocking, with initiative and flexibility, not only can better protect the safe operation of the engine, but also can improve the combustion thermal efficiency .
  • FIG. 3 is a schematic structural diagram of a computer device in Embodiment 3 of the present application.
  • FIG. 3 shows a block diagram of an exemplary computer device 12 suitable for use in implementing embodiments of the present application.
  • the computer device 12 shown in FIG. 3 is only an example, and should not impose any limitations on the functions and scope of use of the embodiments of the present application.
  • computer device 12 takes the form of a general-purpose computing device.
  • Components of computer device 12 may include, but are not limited to, at least one processor or processing unit 16, system memory 28, and a bus 18 connecting various system components including system memory 28 and processing unit 16.
  • the bus 18 represents at least one of several types of bus structures, including a memory bus or memory controller, a peripheral bus, a graphics acceleration port, a processor, or a local bus using any of a variety of bus structures.
  • these architectures include, but are not limited to, Industry Standard Architecture (ISA) bus, Micro Channel Architecture (MCA) bus, enhanced ISA bus, Video Electronics Standards Association (Video Electronics Standards Association) Association, VESA) local bus and Peripheral Component Interconnect (PCI) bus.
  • Computer device 12 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by computer device 12, including both volatile and nonvolatile media, removable and non-removable media.
  • System memory 28 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) 30 and/or cache memory 32 .
  • Computer device 12 may include other removable/non-removable, volatile/non-volatile computer system storage media.
  • storage system 34 may be used to read and write to non-removable, non-volatile magnetic media (not shown in FIG. 3, commonly referred to as a "hard disk drive”).
  • disk drives for reading and writing to removable non-volatile magnetic disks eg "floppy disks”
  • removable non-volatile optical disks Compact Disc-Read
  • Memory 28 may include at least one program product having a set (eg, at least one) of program modules configured to perform the functions of various embodiments of the present application.
  • a program/utility 40 having a set (at least one) of program modules 42, which may be stored, for example, in memory 28, such program modules 42 including, but not limited to, an operating system, at least one application program, other program modules, and program data, which An implementation of a network environment may be included in each or some combination of the examples.
  • Program modules 42 generally perform the functions and/or methods of the embodiments described herein.
  • the computer device 12 may also communicate with at least one external device 14 (eg, keyboard, pointing device, display 24, etc.), may also communicate with at least one device that enables a user to interact with the computer device 12, and/or communicate with the computer device 12 communicates with any device (eg, network card, modem, etc.) capable of communicating with at least one other computing device. Such communication may take place through an input/output (I/O) interface 22 .
  • the display 24 does not exist as an independent entity, but is embedded in the mirror surface. When the display surface of the display 24 is not displayed, the display surface of the display 24 and the mirror surface are visually integrated.
  • the computer device 12 may communicate with at least one network (eg, a Local Area Network (LAN), a Wide Area Network, WAN) and/or a public network, such as the Internet, through a network adapter 20.
  • network adapter 20 communicates with other modules of computer device 12 via bus 18 .
  • other hardware and/or software modules may be used in conjunction with computer device 12, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, Redundant Arrays of Independent Disks, RAID) systems, tape drives, and data backup storage systems.
  • the processing unit 16 executes various functional applications and data processing by running the program stored in the system memory 28, for example, to realize the ignition angle correction method provided by the embodiment of the present application:
  • the ignition angle correction is performed according to the pre-stored ignition thrust angle corresponding to the target area.
  • the fourth embodiment of the present application provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, implements the ignition angle correction method provided by the embodiment of the present application:
  • the ignition angle correction is performed according to the pre-stored ignition thrust angle corresponding to the target area.
  • the computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium or any combination of the two.
  • the computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus or device, or a combination of any of the above.
  • a computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.
  • a computer-readable signal medium may include a propagated data signal in baseband or as part of a carrier wave, with computer-readable program code embodied thereon. 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 foregoing.
  • a computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium that can transmit, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device .
  • Program code embodied on a computer-readable medium may be transmitted using any suitable medium, including but not limited to wireless, wire, optical fiber cable, radio frequency (RF), etc., or any suitable combination of the foregoing.
  • suitable medium including but not limited to wireless, wire, optical fiber cable, radio frequency (RF), etc., or any suitable combination of the foregoing.
  • the client and server can use any currently known or future developed network protocol such as HTTP (HyperText Transfer Protocol) to communicate, and can communicate with digital data in any form or medium Communication (eg, a communication network) interconnects.
  • HTTP HyperText Transfer Protocol
  • Examples of communication networks include local area networks (“LAN”), wide area networks (“WAN”), the Internet (eg, the Internet), and peer-to-peer networks (eg, ad hoc peer-to-peer networks), as well as any currently known or future development network of.
  • the above-mentioned computer-readable medium may be included in the above-mentioned electronic device; or may exist alone without being assembled into the electronic device.
  • the above-mentioned computer-readable medium carries at least one program, and when the above-mentioned at least one program is executed by the electronic device, the electronic device: acquires the engine speed and the engine load; if it is determined according to the engine speed and the engine load that the engine runs to target area, the ignition angle correction is performed according to the pre-stored ignition push angle corresponding to the target area.
  • Computer program code for performing the operations of the present application may be written in at least one programming language, including object-oriented programming languages such as Java, Smalltalk, C++, and also conventional procedural programs, or a combination thereof Design Language - such as the "C" language or similar programming language.
  • the program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer, or entirely on the remote computer or server.
  • the remote computer may be connected to the user's computer through any kind of network including a local area network (LAN) or wide area network (WAN), or may be connected to an external computer (eg, using an Internet service provider to connect over the Internet) .
  • LAN local area network
  • WAN wide area network
  • Internet service provider to connect over the Internet
  • each block in the flowchart or block diagrams may represent a module, segment, or portion of code that contains at least one configurable function for implementing the specified logical function. Execute the instruction.
  • the functions noted in the blocks may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved.
  • each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations can be implemented in dedicated hardware-based systems that perform the specified functions or operations , or can be implemented in a combination of dedicated hardware and computer instructions.
  • the units involved in the embodiments of the present disclosure may be implemented in a software manner, and may also be implemented in a hardware manner. Among them, the name of the unit does not constitute a limitation of the unit itself under certain circumstances.
  • exemplary types of hardware logic components include: Field-Programmable Gate Arrays (FPGAs), Application Specific Integrated Circuits (ASICs), Application Specific Standard Products (Application Specific Standard Products) Specific Standard Parts, ASSP), system on chip (System on Chip, SOC), complex programmable logic device (Complex Programmable Logic Device, CPLD) and so on.
  • FPGAs Field-Programmable Gate Arrays
  • ASICs Application Specific Integrated Circuits
  • ASSP Application Specific Standard Products
  • SOC System on Chip
  • complex programmable logic device Complex Programmable Logic Device, CPLD
  • a machine-readable medium may be a tangible medium that may contain or store a program for use by or in connection with the instruction execution system, apparatus or device.
  • the machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium.
  • Machine-readable media may include, but are not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or devices, or any suitable combination of the foregoing.
  • machine-readable storage media would include at least one wire-based electrical connection, portable computer disks, hard disks, random access memory (RAM), read only memory (ROM), erasable programmable read only memory (EPROM) or flash memory), fiber optics, compact disk read only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.
  • RAM random access memory
  • ROM read only memory
  • EPROM erasable programmable read only memory
  • flash memory flash memory
  • fiber optics compact disk read only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.
  • CD-ROM compact disk read only memory
  • magnetic storage devices or any suitable combination of the foregoing.

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Abstract

一种点火角修正方法。该方法包括：获取发动机转速和发动机负荷；响应于根据发动机转速和发动机负荷确定发动机运行到目标区域，根据目标区域对应的预先存储的点火推角进行点火角修正。还公开了相应的装置、设备及存储介质。

Description

一种点火角修正方法、装置、设备及存储介质
本申请要求在2020年10月22日提交中国专利局、申请号为202011140444.7的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及车辆技术，例如涉及一种点火角修正方法、装置、设备及存储介质。
背景技术
爆震是发生在汽油机气缸内的一种不可避免、且具有破坏性的燃烧现象，发动机爆震不仅会对气缸产生破坏，同时，也会导致燃烧恶化，使发动机的动力输出下降，影响汽车尾气排放。
近年来，汽车行业不断强化发动机的经济性和动力性，导致发动机的压缩比和气缸内的温度提高，使爆震更易于发生。而点火角控制对发动机缸内是否产生爆震有着决定性的影响，在发动机运行过程中要不断调整点火角，才能使发动机内混合气充分的燃烧，不发生爆震。那么，如何有效的调整点火角，使发动机安全且高效的运行，成为了汽油发动机控制的关键因素。
汽油发动机运行工况发生改变时，燃烧室内混合气容易产生爆震，需要调整点火角来抑制爆震的产生，保护发动机。这种情况下，行业内普遍采用的方法是：通过爆震传感器，识别到爆震的产生，随后调整点火角来抑制接下来产生爆震的倾向，这种调节方法有着被动性和滞后性，因为必须已经有爆震产生，才能采取手段。
发明内容
本申请实施例提供一种点火角修正方法、装置、设备及存储介质，以实现当发动机运行工况发生改变时，主动进行点火角修正，减少爆震发生的可能性， 具有主动性和灵活性，不仅能够更好的保护发动机安全运行，而且也能够提高燃烧热效率。
第一方面，本申请实施例提供了一种点火角修正方法，包括：
获取发动机转速和发动机负荷；
响应于根据所述发动机转速和所述发动机负荷确定发动机运行到目标区域，根据所述目标区域对应的预先存储的点火推角进行点火角修正。
第二方面，本申请实施例还提供了一种点火角修正装置，该装置包括：
获取模块，设置为获取发动机转速和发动机负荷；
修正模块，设置为响应于根据所述发动机转速和所述发动机负荷确定发动机运行到目标区域，根据所述目标区域对应的预先存储的点火推角进行点火角修正。
第三方面，本申请实施例还提供了一种计算机设备，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，所述处理器执行所述程序时实现如本申请第一方面所述的方法。
第四方面，本申请实施例还提供了一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现如本申请第一方面所述的方法。
附图说明
图1是本申请实施例一中的一种点火角修正方法的流程图；
图1a是本申请实施例一中的区域划分示意图；
图1b是本申请实施例一中的存储原则示意图；
图1c是本申请实施例一中的爆震自学习值更新方法示意图；
图2是本申请实施例二中的一种点火角修正装置的结构示意图；
图3是本申请实施例三中的一种计算机设备的结构示意图。
具体实施方式
下面结合附图和实施例对本申请作详细说明。
应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步定义和解释。同时，在本申请的描述中，术语“第一”、“第二”等仅用于区分描述，而不能理解为指示或暗示相对重要性。
实施例一
图1为本申请实施例一提供的一种点火角修正方法的流程图，本实施例可适用于当发动机运行工况发生改变时，发动机点火角修正的情况，该方法可以由本申请实施例中的点火角修正装置来执行，该装置可采用软件和/或硬件的方式实现，如图1所示，该方法包括如下步骤：
S110，获取发动机转速和发动机负荷。
其中，所述发动机转速和发动机负荷可以通过传感器采集得到，也可以通过控制器局域网络(Controller Area Network,CAN)总线获取，本申请实施例对此不进行限制。
S120，若根据所述发动机转速和所述发动机负荷确定发动机运行到目标区域，则根据所述目标区域对应的预先存储的点火推角进行点火角修正。
其中，所述点火推角为将点火角调低的值，例如可以是，若基本点火角为2，点火推角为-2，则实际输出的点火角为0，需要说明的是，所述点火推角一般为负值或者为零。
其中，所述目标区域为预先对发动机运行工况进行划分后得到的区域，例如可以是，若发动机为4缸，则将发动机运行工况划分为16个区域，其中，一个区域为低负荷区域，由于发动机处于低负荷区域，不需要对点火角进行调整即可平稳运行，因此，可以只从中负荷区开始对工况进行划分。也就是说，从中负荷区开始对工况进行划分，得到15个区域。
其中，所述目标区域为对发动机运行工况进行划分后得到的任一区域。
示例性的，预先存储的点火推角可以为当发动机运行区域发生改变时，对点火角进行修正后，得到的点火推角，也可以为预先设定的点火推角，本申请实施例对此不进行限制。
需要说明的是，不同的目标区域预先存储的点火推角可能相同也可能不同。
可选的，在若根据所述发动机转速和所述发动机负荷确定发动机运行到目标区域，则根据所述目标区域对应的预先存储的点火推角进行点火角修正之前，还包括：
将发动机运行工况划分为至少七个区域；
根据所述发动机转速和发动机负荷确定发动机运行到目标区域，则对点火角进行修正；
根据点火角修正结果确定点火推角，并将所述点火推角存储至目标地址，其中，所述目标地址为目标区域对应的地址。
其中，将发动机运行工况划分为多少个区域和发动机是几缸发动机有关，也和计算机处理能力有关，本申请实施例对此不进行限制。所述目标区域对应的预先存储的点火推角，即目标区域对应的目标地址中存储的点火推角。
其中，所述目标区域可以为任意区域，例如可以是，发动机从A区域运行到B区域，则目标区域为B区域，本申请实施例对此不进行限制。
需要说明的是，在对发动机运行工况进行划分得到至少七个区域后，为每个区域分配一个地址，用来存储点火推角。
可选的，在若根据所述发动机转速和所述发动机负荷确定发动机运行到目标区域，则根据所述目标区域对应的预先存储的点火推角进行点火角修正之后，还包括：
若根据所述发动机转速和所述发动机负荷确定发动机离开目标区域，则获取修正后的点火推角和预先存储的点火推角中的最小值；
将修正后的点火推角和预先存储的点火推角中的最小值存储至所述目标地址。
可选的，在若根据所述发动机转速和所述发动机负荷确定发动机运行到目标区域，则根据所述目标区域对应的预先存储的点火推角进行点火角修正之后，还包括：
当所述发动机在发动机运行区域(即目标区域)稳定运行时，若识别到爆震，则对点火角再次进行修正，得到目标点火推角；
若所述目标点火推角与预设步长之和小于预先存储的点火推角(即目标区域对应的预先存储的点火推角)，则将预先存储的点火推角更新为目标点火推角与预设步长之和。
其中，所述预设步长为预先设定，所述预设步长可以为0.75,也可以为其他值，本申请实施例对此不进行限制。需要说明的是，本申请中的目标点火推角是在基本点火角上进行动态调节得到的，为发动机实际输出的点火角。
示例性的，当发动机在此区域稳定运行时，如果发生了爆震，且爆震推角值T加上一个步长α后的值小于爆震自学习值M i，则说明此时发动机运行的工况需要较大的推角值，自学习推角值不足，需要将爆震自学习值更新为T+α。需要说明的是，本申请中爆震推角值T即“目标点火推角”；步长α即“预设步长”；爆震自学习值M i即预先存储的点火推角值。
可选的，在若根据所述发动机转速和所述发动机负荷确定发动机运行到目标区域，则根据所述目标区域对应的预先存储的点火推角进行点火角修正之后，还包括：
当所述发动机在发动机运行区域稳定运行时，未识别到爆震，且预先存储的点火推角与预设数值之和小于目标点火推角,则将预先存储的点火推角更新为预先存储的点火推角和预设步长之和，其中，所述预设数值大于零。
其中，所述预设数值为正数，例如可以是0.9，也可以为1，本申请实施例对此不进行限制。
示例性的，如果发动机平稳运行，且没有发生爆震，则判断当前爆震自学习值加上一个正数β是否仍小于当前推角值T，在当前爆震自学习值加上一个正 数β仍小于当前推角值T的情况下，则说明当前发动机在较小或者没有推角的情况下，依然可以平稳运行，则需要将爆震自学习值M i增加一个步长α。
可选的，在若根据所述发动机转速和所述发动机负荷确定发动机运行到目标区域，则根据所述目标区域对应的预先存储的点火推角进行点火角修正之后，还包括：
当所述发动机在发动机运行区域稳定运行时，未识别到爆震，且当前点火推角等于零，则将预先存储的点火推角更新为预先存储的点火推角和预设步长之和。需要说明的是，当前推角值即目标点火推角，也即发动机实际输出的点火角。
示例性的，如果发动机平稳运行，即没有发生爆震，则判断当前爆震自学习值加上一个正数β是否仍小于当前推角值T，或者在没有爆震的情况下，当前的推角值T是否为0，两种情况如有一种成立，则说明当前发动机在较小或者没有推角的情况下，依然可以平稳运行，则需要将爆震自学习值M i增加一个步长α。
可选的，若根据所述发动机转速和所述发动机负荷确定发动机运行到目标区域，则根据所述目标区域对应的预先存储的点火推角进行点火角修正，包括：
若根据所述发动机转速和所述发动机负荷确定发动机运行到目标区域，则获取所述目标区域对应的预先存储的点火推角；
获取基本点火角；
将所述基本点火角和所述预先存储的点火推角之和作为发动机实际输出的点火角。
示例性的，当发动机运行到新的区域时，将新区域内对应的爆震自学习值取出，加在基本点火角I g上，从而使发动机进入新工况后，主动进行推角，抑制爆震发生。运算过程如公式I out＝I g+M i。其中，I out为实际输出的点火角，I g为基本点火角，M i为爆震自学习值，也就是预先存储的点火推角。
在一个具体的例子中，基于爆震自学习修正点火角分为以下几个过程：一、 发动机运行工况区域划分，二、爆震自学习值存入，三、爆震自学习值更新，四、爆震自学习值修正点火角。
一、区域划分：首先，将发动机运行的全工况分为15个区域，如图1a所示，图1a中，1、2、3、4为缸号，存入顺序即为发动机点火顺序1-3-4-2，其高低表示存入的值(即点火推角)的大小。每个区域对应着发动机一个工况范围。每个区域内为各个缸分配一个地址，用来存储点火推角，存储的点火推角即为爆震自学习值。
需要说明的是，每个缸对应一个点火推角，每个缸对应的点火推角存储在每个缸的地址中，例如可以是，当前发动机为4缸，则将缸1对应的点火推角存储至缸1对应的地址中，将缸2对应的点火推角存储至缸2对应的地址中，将缸3对应的点火推角存储至缸3对应的地址中，将缸4对应的点火推角存储至缸4对应的地址中。在发动机点火时，获取每个缸对应存储的点火推角，将存储的点火推角和基本点火角的和作为实际输出的点火角。
对于4缸发动机而言，需要在同一区域内有4个地址，故全工况下一共有60个地址用来存储爆震自学习值。
发动机在低负荷区运行时，不需要对点火角进行调整即可平稳运行，故工况划分的负荷范围从中负荷区开始，将工况划分好之后，当发动机运行区域发生改变时，其对应的区域以及爆震自学习值存储地址也会发生改变。
二、爆震自学习值存入：当发动机工况发生改变，使其对应的工况区域发生改变，在离开原来的区域到新的区域时，需存入爆震自学习值，存储原则如图1b所示，将当前爆震推角值T与原来区域存储地址中的点火推角值M i做对比，将二者中最小的负值存入原来区域内的地址中，其中i为地址索引号。
三、爆震自学习值更新：存储的爆震自学习值需要不断更新，使之与发动机实际输出点火角保持在一定范围内，更新方法为：当发动机在此区域稳定运行时，如果发生了爆震，且爆震推角值T加上一个步长α后的值小于爆震自学习值M i，则说明此时发动机运行的工况需要较大的推角值，自学习推角值不足， 需要将爆震自学习值更新为T+α；在爆震推角值T加上一个步长α后的值大于或等于爆震自学习值M i的情况下说明此时爆震自学习值可以适应当前工况，不需要进行更新；如果发动机平稳运行，且没有发生爆震，则判断当前爆震自学习值加上一个正数β是否仍小于当前推角值T，或者在没有爆震的情况下，当前的推角值T是否为0，两种情况如有一种成立，则说明当前发动机在较小或者没有推角的情况下，依然可以平稳运行，则需要将爆震自学习值M i增加一个步长α，反之说明发动机依然运行在较大的推角值中，爆震自学习值M i不需要更新，更新方法如图1c所示。这种更新方法能够使爆震自学习值随着发动机推角值的改变而发生同向改变，进而保证爆震自学习值的有效性。注：推角值与爆震自学习值都为负数，即T＜0,M i＜0。
四、爆震自学习值修正点火角：当发动机运行到新的区域时，将新区域内对应的爆震自学习值取出，加在基本点火角I g上，从而使发动机进入新工况后，主动进行推角，抑制爆震发生。运算过程如公式(1)所示，其中，I out为实际输出的点火角。
I out＝I g+M i       (1)
基于爆震自学习值修正点火角的原理为：每个区域内存储的爆震自学习值，如果不为0，那么说明上一次发动机运行在这个区域内时，发动机发生了爆震，点火角发生了推角，且发动机一直运行在点火角推角状态。也说明了，只有在点火角向后推角状态下，发动机才能够在该工况下平稳运行。当发动机离开此工况一段时间后，又回到此工况，如果只以基本点火角进行点火，那么发动机很大可能还会发生爆震，还需要推角，那么如果把上一刻的推角值记录下来，并当发动机再次运行在该工况下，将此推角值直接加入到点火角上，使发动机主动推角，就会使发动机直接运行在稳定状态，从而减少发生爆震的次数，提高了燃烧效率。
本实施例的技术方案，通过获取发动机转速和发动机负荷；若根据所述发动机转速和所述发动机负荷确定发动机运行到目标区域，则根据所述目标区域对应的预先存储的点火推角进行点火角修正，以实现当发动机运行工况发生改变时，主动进行点火角修正，减少爆震发生的可能性，具有主动性和灵活性，不仅能够更好的保护发动机安全运行，而且也能够提高燃烧热效率。
实施例二
图2为本申请实施例二提供的一种点火角修正装置的结构示意图。本实施例可适用于当发动机运行工况发生改变时，发动机点火角修正的情况，该装置可采用软件和/或硬件的方式实现，该装置可集成在任何提供点火角修正功能的设备中，如图2所示，所述点火角修正装置包括：获取模块210和修正模块220。
其中，获取模块210，设置为获取发动机转速和发动机负荷；
修正模块220，设置为若根据所述发动机转速和所述发动机负荷确定发动机运行到目标区域，则根据所述目标区域对应的预先存储的点火推角进行点火角修正。
可选的，所述点火角修正装置还包括：
划分模块，设置为将发动机运行工况划分为至少七个区域；
第一确定模块，设置为根据所述发动机转速和发动机负荷确定发动机运行到目标区域，则对点火角进行修正；
第一存储模块，设置为根据点火角修正结果确定点火推角，并将所述点火推角存储至目标地址，其中，所述目标地址为目标区域对应的地址。
可选的，所述点火角修正装置，还包括：
第二确定模块，设置为若根据所述发动机转速和所述发动机负荷确定发动机离开目标区域，则获取修正后的点火推角和预先存储的点火推角中的最小值；
第二存储模块，设置为将修正后的点火推角和预先存储的点火推角中的最小值存储至所述目标地址。
可选的，所述点火角修正装置，还包括：
识别模块，设置为当所述发动机在发动机运行区域稳定运行时，若识别到爆震，则对点火角进行修正，得到目标点火推角；
第一更新模块，设置为若所述目标点火推角与预设步长之和小于预先存储的点火推角，则将预先存储的点火推角更新为目标点火推角与预设步长之和。
可选的，所述点火角修正装置，还包括：
第二更新模块，设置为当所述发动机在发动机运行区域稳定运行时，未识别到爆震，且预先存储的点火推角与预设数值之和小于目标点火推角，则将预先存储的点火推角更新为预先存储的点火推角和预设步长之和，其中，所述预设数值大于零。
可选的，所述点火角修正装置，还包括：
当所述发动机在发动机运行区域稳定运行时，未识别到爆震，且当前点火推角等于零，则将预先存储的点火推角更新为预先存储的点火推角和预设步长之和。
可选的，所述修正模块220通过以下方式实现若根据所述发动机转速和所述发动机负荷确定发动机运行到目标区域，则根据所述目标区域对应的预先存储的点火推角进行点火角修正：
若根据所述发动机转速和所述发动机负荷确定发动机运行到目标区域，则获取所述目标区域对应地址中预先存储的点火推角；
获取基本点火角；
将所述基本点火角和所述预先存储的点火推角之和作为发动机实际输出的点火角。
上述产品可执行本申请任意实施例所提供的方法，具备执行方法相应的功能模块。
本实施例的技术方案，通过获取发动机转速和发动机负荷；若根据所述发动机转速和所述发动机负荷确定发动机运行到目标区域，则根据所述目标区域 对应的预先存储的点火推角进行点火角修正，以实现当发动机运行工况发生改变时，主动进行点火角修正，减少爆震发生的可能性，具有主动性和灵活性，不仅能够更好的保护发动机安全运行，而且也能够提高燃烧热效率。
实施例三
图3为本申请实施例三中的一种计算机设备的结构示意图。图3示出了适于用来实现本申请实施方式的示例性计算机设备12的框图。图3显示的计算机设备12仅仅是一个示例，不应对本申请实施例的功能和使用范围带来任何限制。
如图3所示，计算机设备12以通用计算设备的形式表现。计算机设备12的组件可以包括但不限于：至少一个处理器或者处理单元16，系统存储器28，连接不同系统组件(包括系统存储器28和处理单元16)的总线18。
总线18表示几类总线结构中的至少一种，包括存储器总线或者存储器控制器，外围总线，图形加速端口，处理器或者使用多种总线结构中的任意总线结构的局域总线。举例来说，这些体系结构包括但不限于工业标准体系结构(Industry Standard Architecture，ISA)总线，微通道体系结构(Micro Channel Architecture，MCA)总线，增强型ISA总线、视频电子标准协会(Video Electronics Standards Association，VESA)局域总线以及外围组件互连(Peripheral Component Interconnect，PCI)总线。
计算机设备12典型地包括多种计算机系统可读介质。这些介质可以是任何能够被计算机设备12访问的可用介质，包括易失性和非易失性介质，可移动的和不可移动的介质。
系统存储器28可以包括易失性存储器形式的计算机系统可读介质，例如随机存取存储器(Random Access Memory，RAM)30和/或高速缓存存储器32。计算机设备12可以包括其它可移动/不可移动的、易失性/非易失性计算机系统存储介质。仅作为举例，存储系统34可以用于读写不可移动的、非易失性磁介质(图3未显示，通常称为“硬盘驱动器”)。尽管图3中未示出，可以提供用 于对可移动非易失性磁盘(例如“软盘”)读写的磁盘驱动器，以及对可移动非易失性光盘(只读光盘(Compact Disc-Read Only Memory，CD-ROM)、数字视盘(Digital Video Disc-Read Only Memory，DVD-ROM)或者其它光介质)读写的光盘驱动器。在这些情况下，每个驱动器可以通过至少一个数据介质接口与总线18相连。存储器28可以包括至少一个程序产品，该程序产品具有一组(例如至少一个)程序模块，这些程序模块被配置以执行本申请各实施例的功能。
具有一组(至少一个)程序模块42的程序/实用工具40，可以存储在例如存储器28中，这样的程序模块42包括但不限于操作系统、至少一个应用程序、其它程序模块以及程序数据，这些示例中的每一个或某种组合中可能包括网络环境的实现。程序模块42通常执行本申请所描述的实施例中的功能和/或方法。
计算机设备12也可以与至少一个外部设备14(例如键盘、指向设备、显示器24等)通信，还可与至少一个使得用户能与该计算机设备12交互的设备通信，和/或与使得该计算机设备12能与至少一个其它计算设备进行通信的任何设备(例如网卡，调制解调器等等)通信。这种通信可以通过输入/输出(Input/Output，I/O)接口22进行。另外，本实施例中的计算机设备12，显示器24不是作为独立个体存在，而是嵌入镜面中，在显示器24的显示面不予显示时，显示器24的显示面与镜面从视觉上融为一体。并且，计算机设备12还可以通过网络适配器20与至少一个网络(例如局域网(Local Area Network，LAN)，广域网Wide Area Network，WAN)和/或公共网络，例如因特网)通信。如图所示，网络适配器20通过总线18与计算机设备12的其它模块通信。应当明白，尽管图中未示出，可以结合计算机设备12使用其它硬件和/或软件模块，包括但不限于：微代码、设备驱动器、冗余处理单元、外部磁盘驱动阵列、磁盘阵列(Redundant Arrays of Independent Disks，RAID)系统、磁带驱动器以及数据备份存储系统等。
处理单元16通过运行存储在系统存储器28中的程序，从而执行各种功能应用以及数据处理，例如实现本申请实施例所提供的点火角修正方法：
获取发动机转速和发动机负荷；
若根据所述发动机转速和所述发动机负荷确定发动机运行到目标区域，则根据所述目标区域对应的预先存储的点火推角进行点火角修正。
实施例四
本申请实施例四提供了一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现如本申请申请实施例提供的点火角修正方法：
获取发动机转速和发动机负荷；
若根据所述发动机转速和所述发动机负荷确定发动机运行到目标区域，则根据所述目标区域对应的预先存储的点火推角进行点火角修正。
可以采用至少一个计算机可读的介质的任意组合。计算机可读介质可以是计算机可读信号介质或者计算机可读存储介质或者是上述两者的任意组合。计算机可读存储介质例如可以是但不限于电、磁、光、电磁、红外线、或半导体的系统、装置或器件，或者任意以上的组合。计算机可读存储介质的更具体的例子(非穷举的列表)包括：具有至少一个导线的电连接、便携式计算机磁盘、硬盘、随机存取存储器(RAM)、只读存储器(ROM)、可擦式可编程只读存储器((Erasable Programmable Read-Only Memory，EPROM)或闪存)、光纤、便携式紧凑磁盘只读存储器(CD-ROM)、光存储器件、磁存储器件、或者上述的任意合适的组合。在本文件中，计算机可读存储介质可以是任何包含或存储程序的有形介质，该程序可以被指令执行系统、装置或者器件使用或者与其结合使用。
计算机可读的信号介质可以包括在基带中或者作为载波一部分传播的数据信号，其中承载了计算机可读的程序代码。这种传播的数据信号可以采用多种形式，包括但不限于电磁信号、光信号或上述的任意合适的组合。计算机可读的信号介质还可以是计算机可读存储介质以外的任何计算机可读介质，该计算机可读介质可以发送、传播或者传输用于由指令执行系统、装置或者器件使用或者与其结合使用的程序。
计算机可读介质上包含的程序代码可以用任何适当的介质传输，包括但不限于无线、电线、光缆、射频(Radio Frequency，RF)等等，或者上述的任意合适的组合。
在一些实施方式中，客户端、服务器可以利用诸如HTTP(HyperText Transfer Protocol，超文本传输协议)之类的任何当前已知或未来研发的网络协议进行通信，并且可以与任意形式或介质的数字数据通信(例如，通信网络)互连。通信网络的示例包括局域网(“LAN”)，广域网(“WAN”)，网际网(例如，互联网)以及端对端网络(例如，ad hoc端对端网络)，以及任何当前已知或未来研发的网络。
上述计算机可读介质可以是上述电子设备中所包含的；也可以是单独存在，而未装配入该电子设备中。
上述计算机可读介质承载有至少一个程序，当上述至少一个程序被该电子设备执行时，使得该电子设备：获取发动机转速和发动机负荷；若根据所述发动机转速和所述发动机负荷确定发动机运行到目标区域，则根据所述目标区域对应的预先存储的点火推角进行点火角修正。
可以以至少一种程序设计语言或其组合来编写用于执行本申请操作的计算机程序代码，所述程序设计语言包括面向对象的程序设计语言诸如Java、Smalltalk、C++，还包括常规的过程式程序设计语言—诸如“C”语言或类似的程序设计语言。程序代码可以完全地在用户计算机上执行、部分地在用户计算机上执行、作为一个独立的软件包执行、部分在用户计算机上部分在远程计算机上执行、或者完全在远程计算机或服务器上执行。在涉及远程计算机的情形中，远程计算机可以通过任意种类的网络包括局域网(LAN)或广域网(WAN)连接到用户计算机，或者，可以连接到外部计算机(例如利用因特网服务提供商来通过因特网连接)。
附图中的流程图和框图，图示了按照本公开各种实施例的系统、方法和计算机程序产品的可能实现的体系架构、功能和操作。在这点上，流程图或框图 中的每个方框可以代表一个模块、程序段、或代码的一部分，该模块、程序段、或代码的一部分包含至少一个用于实现规定的逻辑功能的可执行指令。也应当注意，在有些作为替换的实现中，方框中所标注的功能也可以以不同于附图中所标注的顺序发生。例如，两个接连地表示的方框实际上可以基本并行地执行，它们有时也可以按相反的顺序执行，这依所涉及的功能而定。也要注意的是，框图和/或流程图中的每个方框、以及框图和/或流程图中的方框的组合，可以用执行规定的功能或操作的专用的基于硬件的系统来实现，或者可以用专用硬件与计算机指令的组合来实现。
描述于本公开实施例中所涉及到的单元可以通过软件的方式实现，也可以通过硬件的方式来实现。其中，单元的名称在某种情况下并不构成对该单元本身的限定。
本文中以上描述的功能可以至少部分地由至少一个硬件逻辑部件来执行。例如，非限制性地，可以使用的示范类型的硬件逻辑部件包括：现场可编程门阵列(Field-Programmable Gate Array，FPGA)、专用集成电路(Application Specific Integrated Circuit，ASIC)、专用标准产品(Application Specific Standard Parts，ASSP)、片上系统(System on Chip，SOC)、复杂可编程逻辑设备(Complex Programmable Logic Device，CPLD)等等。
在本公开的上下文中，机器可读介质可以是有形的介质，其可以包含或存储以供指令执行系统、装置或设备使用或与指令执行系统、装置或设备结合地使用的程序。机器可读介质可以是机器可读信号介质或机器可读储存介质。机器可读介质可以包括但不限于电子的、磁性的、光学的、电磁的、红外的、或半导体系统、装置或设备，或者上述内容的任何合适组合。机器可读存储介质的更具体示例会包括基于至少一个线的电气连接、便携式计算机盘、硬盘、随机存取存储器(RAM)、只读存储器(ROM)、可擦除可编程只读存储器(EPROM或快闪存储器)、光纤、便捷式紧凑盘只读存储器(CD-ROM)、光学储存设备、磁储存设备、或上述内容的任何合适组合。

Claims (10)

  1. 一种点火角修正方法，包括：
    获取发动机转速和发动机负荷；
    响应于根据所述发动机转速和所述发动机负荷确定发动机运行到目标区域，根据所述目标区域对应的预先存储的点火推角进行点火角修正。
  2. 根据权利要求1所述的方法，在响应于根据所述发动机转速和所述发动机负荷确定发动机运行到目标区域，根据所述目标区域对应的预先存储的点火推角进行点火角修正之前，还包括：
    将发动机运行工况划分为至少七个区域；
    根据所述发动机转速和发动机负荷确定发动机运行到目标区域，对点火角进行修正；
    根据点火角修正结果确定点火推角，并将所述点火推角存储至目标地址，其中，所述目标地址为目标区域对应的地址。
  3. 根据权利要求2所述的方法，在响应于根据所述发动机转速和所述发动机负荷确定发动机运行到目标区域，根据所述目标区域对应的预先存储的点火推角进行点火角修正之后，还包括：
    响应于根据所述发动机转速和所述发动机负荷确定发动机离开目标区域，获取修正后的点火推角和预先存储的点火推角中的最小值；
    将修正后的点火推角和预先存储的点火推角中的最小值存储至所述目标地址。
  4. 根据权利要求2所述的方法，在响应于根据所述发动机转速和所述发动机负荷确定发动机运行到目标区域，根据所述目标区域对应的预先存储的点火推角进行点火角修正之后，还包括：
    响应于所述发动机在发动机运行区域稳定运行且识别到爆震，对点火角再次进行修正，得到目标点火推角；
    在所述目标点火推角与预设步长之和小于预先存储的点火推角的情况下，将预先存储的点火推角更新为目标点火推角与预设步长之和。
  5. 根据权利要求2所述的方法，在响应于根据所述发动机转速和所述发动机负荷确定发动机运行到目标区域，根据所述目标区域对应的预先存储的点火推角进行点火角修正之后，还包括：
    响应于所述发动机在发动机运行区域稳定运行且未识别到爆震，且预先存储的点火推角与预设数值之和小于目标点火推角，则将预先存储的点火推角更新为预先存储的点火推角和预设步长之和，其中，所述预设数值大于零。
  6. 根据权利要求2所述的方法，在响应于根据所述发动机转速和所述发动机负荷确定发动机运行到目标区域，根据所述目标区域对应的预先存储的点火推角进行点火角修正之后，还包括：
    响应于所述发动机在发动机运行区域稳定运行且未识别到爆震，且当前点火推角等于零，将预先存储的点火推角更新为预先存储的点火推角和预设步长之和。
  7. 根据权利要求1所述的方法，其中，响应于根据所述发动机转速和所述发动机负荷确定发动机运行到目标区域，根据所述目标区域对应的预先存储的点火推角进行点火角修正，包括：
    响应于根据所述发动机转速和所述发动机负荷确定发动机运行到目标区域，获取所述目标区域对应地址中预先存储的点火推角；
    获取基本点火角；
    将所述基本点火角和所述预先存储的点火推角之和作为发动机实际输出的点火角。
  8. 一种点火角修正装置，包括：
    获取模块，设置为获取发动机转速和发动机负荷；
    修正模块，设置为响应于根据所述发动机转速和所述发动机负荷确定发动机运行到目标区域，根据所述目标区域对应的预先存储的点火推角进行点火角修正。
  9. 一种计算机设备，包括存储器、处理器及存储在存储器上并可在处理器上 运行的计算机程序，所述处理器执行所述计算机程序时实现如权利要求1-7中任一所述的方法。
  10. 一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1-7中任一所述的方法。
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