Method and system for adjusting a correction factor of a mechanical oil pump gasoline engine system

Abstract

The application discloses a method and system for adjusting a correction factor of a mechanical oil pump gasoline engine system. The method comprises: judging a first trigger condition for adjusting the correction factor according to the engine water temperature and the ambient temperature; if the first trigger condition is triggered, adjusting the correction factor according to the exceeding risk of carbon emission and nitrogen emission to make the carbon emission and nitrogen emission meet the standard; otherwise, the correction factor remains unchanged; judging a second trigger condition for adjusting the correction factor according to the engine operating state; if the second trigger condition is triggered, adjusting the correction factor according to the exceeding risk of carbon emission and nitrogen emission to make the carbon emission and nitrogen emission meet the standard; otherwise, the correction factor remains unchanged. The technical content disclosed by the application can improve the emission robustness and ensure compliance with laws.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobile technology, more particularly, to a method and system for adjusting a correction factor of a mechanical oil pump gasoline engine system. BACKGROUND

[0002] For a PFI gasoline engine system using a mechanical oil pump, the oil pump pressure and the oil rail pressure cannot be monitored, and the oil rail pressure is completely determined by the oil pump pressure. Due to manufacturing differences of the oil pump, oil pipe, oil rail and other components, the oil rail pressure will inevitably vary on different vehicles. In addition, there are also differences in oil products from different batches and different regions. These differences will cause the proportion of the oil-gas mixture to fluctuate within a certain range before the engine is closed-loop (without the feedback of the pre-oxygen forming a closed-loop control, and the engine fuel injection is completely according to the pre-controlled parameters, i.e., the pre-control fuel injection pulse width time length is inversely calculated according to the intake air volume).

[0003] In order to avoid the influence of the above-mentioned differences on the fuel system, the entire EMS control system has developed a fuel self-learning function (the function of fuel self-learning is briefly described as follows: according to the speed and intake air volume, the EMS can monitor whether the pre-controlled fuel injection parameters deviate, such as being too small or too large, according to the pre-oxygen signal (which can judge the proportion of the oil-gas mixture after combustion). If the pre-controlled fuel injection parameters deviate, the original pre-controlled parameters will be corrected. This correction is a multiplication factor (herein referred to as a fuel self-learning correction factor A). For example, at a certain speed corresponding to an intake air volume, the pre-controlled fuel injection parameter is Q, and the corrected fuel injection is Q*A.

[0004] The fuel self-learning correction factor A (this factor can be understood as follows: if the pressure of a standard oil pump is 4 bar, and the oil pump pressure can always remain 4 bar, the fuel correction factor is 1. Due to manufacturing differences, the pressure of the oil pump may be 3.97 bar. Due to the reduction of the pressure, the amount of oil injected by the fuel injector per unit time will be reduced, and then the fuel correction factor will exceed 1, such as 1.03. This means that the fuel injection pulse width time needs to be lengthened by 1.03 times compared with the standard value to meet the fuel quantity requirement. That is to say, the fuel injection pulse width time needs to be lengthened by 1.03 times compared with the standard value), but this factor A is a fuel correction factor obtained under the comprehensive operating conditions of the engine. The fuel correction factor A will change under different driving cycles of the vehicle. Under a certain specific open-loop operating condition (such as cold start at the emission point), the correction factor A may not be completely applicable, which will cause deviation of the fuel injection quantity.

[0005] During the light-off process of the catalyst in the emission, the engine is in an open-loop control, and the engine operating condition is relatively stable. Different values of the fuel self-learning correction factor A will cause differences in the original emission, and further cause a certain emission to exceed the standard (before the light-off of the catalyst, the conversion efficiency of the catalyst is low).

[0006] The regulation has a limited value requirement for type I emission, and the emission process is briefly described as follows:

[0007] First, the vehicle is cooled in an environment of 20-30 DEG C, the engine water temperature is controlled at 23 DEG C + / - 2 DEG C, the vehicle is pushed onto the drum, and then the vehicle is run according to the WLTC cycle, and whether the pollutants in the whole process meet the regulatory requirements is detected.

[0008] During the whole process, the most place of emission pollutants is in 0-30s after the engine starts; because in 0-30s after the engine starts, the catalyst cannot be fully preheated, and the activation cannot be completed, and the catalyst cannot complete the conversion of the pollutants generated by the engine combustion.

[0009] In the above-mentioned 0-30s, the front oxygen sensor of the engine does not reach the working condition (does not pass the dew point), and cannot work, at this time the engine ECU controls the combustion in open loop.

[0010] The correction factor A of fuel self-learning can weaken the vehicle dispersion in principle, and then ensure the consistency of combustion as much as possible when the engine is in open loop control, but the correction factor A is a comprehensive working condition learning result, which cannot be accurately to a certain specific working condition, such as the specific working condition of the emission point, and changes all the time, and with the increase of vehicle dispersion and the difference of oil products, the correction factor A of fuel self-learning may learn to be larger or smaller, such as A >= 1.05, which will cause CO emission exceeding the standard.

[0011] Therefore, how to provide the adjustment method and system of the correction factor of mechanical oil pump gasoline engine system has become a technical problem to be solved in the art. SUMMARY

[0012] The purpose of the present application is to provide an adjustment method, system, electronic device and storage medium of the correction factor of mechanical oil pump gasoline engine system.

[0013] The first aspect of the present application discloses an adjustment method of the correction factor of mechanical oil pump gasoline engine system, and the method comprises:

[0014] Step S1, judging the first trigger condition of the adjustment of the correction factor according to the engine water temperature and the ambient temperature;

[0015] Step S2, if the first trigger condition is triggered, adjusting the correction factor according to the over-standard risk of carbon emission and nitrogen emission, so that the carbon emission and nitrogen emission meet the standard; otherwise, the correction factor remains unchanged;

[0016] Step S3, judging the second trigger condition of the adjustment of the correction factor according to the engine operating state;

[0017] Step S4, if the second trigger condition triggers, adjusting the correction factor according to the risk of exceeding the carbon emission and nitrogen emission, so that the carbon emission and nitrogen emission meet the standard; otherwise the correction factor remains unchanged.

[0018] According to the method of the first aspect of the present application, in the step S1, the method of judging the first trigger condition of the adjustment of the correction factor according to the engine water temperature and the ambient temperature comprises:

[0019] Before the engine is started, if the engine water temperature is greater than or equal to a first preset temperature C ℃, and the engine water temperature is less than or equal to a second preset temperature D ℃, and the ambient temperature is greater than or equal to a first preset temperature E ℃, the first trigger condition is triggered.

[0020] According to the method of the first aspect of the present application, in the step S3, the method of judging the second trigger condition of the adjustment of the correction factor according to the engine operating state comprises:

[0021] After the engine is started, if the engine continues to run for a preset time G seconds or the total mass of the intake air after the engine is combusted is greater than or equal to a preset mass H mg, and the front oxygen is not closed loop, the second trigger condition is triggered.

[0022] According to the method of the first aspect of the present application, in the steps S2 and S4, the method of adjusting the correction factor according to the risk of exceeding the carbon emission comprises:

[0023] If there is a risk of exceeding the carbon emission when the correction factor A is the first correction value, the correction factor A is decreased by 0.01 until the carbon emission meets the standard, and the correction factor A is adjusted to a second correction value.

[0024] According to the method of the first aspect of the present application, in the steps S2 and S4, the method of adjusting the correction factor according to the risk of exceeding the nitrogen emission comprises:

[0025] If there is a risk of exceeding the nitrogen emission when the correction factor A is the first correction value, the correction factor A is increased by 0.01 until the nitrogen emission meets the standard, and the correction factor A is adjusted to a third correction value.

[0026] The second aspect of the present application discloses an adjustment system of a correction factor of a mechanical oil pump gasoline engine system, the system comprising:

[0027] A first processing module configured to judge a first trigger condition of the adjustment of the correction factor according to the engine water temperature and the ambient temperature;

[0028] The second processing module is configured to, if the first trigger condition is triggered, adjust the correction factor according to the risk of exceeding the carbon emission and the nitrogen emission, so that the carbon emission and the nitrogen emission meet the standard; otherwise, the correction factor remains unchanged.

[0029] The third processing module is configured to determine a second trigger condition of the adjustment of the correction factor according to the engine operating state.

[0030] The fourth processing module is configured to, if the second trigger condition is triggered, adjust the correction factor according to the risk of exceeding the carbon emission and the nitrogen emission, so that the carbon emission and the nitrogen emission meet the standard; otherwise, the correction factor remains unchanged.

[0031] The third aspect of the present application discloses an electronic device. The electronic device comprises a memory and a processor, the memory stores a computer program, and the processor implements the steps of the adjustment method of the correction factor of the mechanical oil pump gasoline engine system according to any one of the first aspect of the present application when executing the computer program.

[0032] The fourth aspect of the present application discloses a computer readable storage medium. The computer readable storage medium stores a computer program, and the computer program implements the steps of the adjustment method of the correction factor of the mechanical oil pump gasoline engine system according to any one of the first aspect of the present application when executed by a processor.

[0033] According to the technical content disclosed by the present application, the following beneficial effects are achieved: improving the emission robustness and ensuring compliance with laws and regulations.

[0034] Other characteristics and advantages of the present application will become apparent from the following detailed description of exemplary embodiments thereof, which description should be considered in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0035] The accompanying drawings incorporated in and forming a part of the specification, illustrate embodiments of the present application and, together with the description, serve to explain the principles of the application.

[0036] Figure 1 A flowchart of an adjustment method of a correction factor of a mechanical oil pump gasoline engine system according to an embodiment is provided.

[0037] Figure 2 A structural diagram of an adjustment system of a correction factor of a mechanical oil pump gasoline engine system according to an embodiment of the present application is provided.

[0038] Figure 3 A structural diagram of an electronic device according to an embodiment of the present application is provided. DETAILED DESCRIPTION

[0039] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. Note that the relative arrangement, numerical expressions, and numerical values of components and steps set forth in these embodiments are not limiting to the scope of the present application unless otherwise specifically stated.

[0040] The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the scope of the application its application or uses.

[0041] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail herein. However, where appropriate, such techniques, methods, and apparatus should be considered as being part of the specification.

[0042] In all of the examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments can have different values.

[0043] It should be noted that like reference numerals and letters in the various figures indicate similar items, and thus, once any component is defined in one figure, it should not require further discussion in subsequent figures.

[0044] Embodiment 1:

[0045] The present application discloses a method for adjusting a correction factor of a mechanical oil pump gasoline engine system. Figure 1 A flow chart of a method for adjusting a correction factor of a mechanical oil pump gasoline engine system according to an embodiment of the present application is shown in Figure 1 The method comprises:

[0046] Step S1, judging a first trigger condition of adjustment of the correction factor according to an engine water temperature and an ambient temperature;

[0047] Step S2, if the first trigger condition is triggered, adjusting the correction factor according to a risk of exceeding a standard of carbon emission and nitrogen emission to make the carbon emission and nitrogen emission meet the standard; otherwise, the correction factor remains unchanged;

[0048] Step S3, judging a second trigger condition of adjustment of the correction factor according to an engine operating state;

[0049] Step S4, if the second trigger condition is triggered, adjusting the correction factor according to a risk of exceeding a standard of carbon emission and nitrogen emission to make the carbon emission and nitrogen emission meet the standard; otherwise, the correction factor remains unchanged.

[0050] In step S1, a first trigger condition of adjustment of the correction factor is judged according to an engine water temperature and an ambient temperature.

[0051] In some embodiments, in the step S1, the method of judging the first trigger condition of the adjustment of the correction factor according to the engine water temperature and the ambient temperature comprises:

[0052] Before the engine is started, if the engine water temperature is greater than or equal to a first preset temperature C ℃, the engine water temperature is less than or equal to a second preset temperature D ℃, and the ambient temperature is greater than or equal to a first preset temperature E ℃, the first trigger condition is triggered.

[0053] Specifically, before the engine is started, it is confirmed whether D ℃ ≥ engine water temperature ≥ C ℃ and ambient temperature ≥ E ℃ are satisfied, and if satisfied, the engine is started and enters the catalytic converter light-off stage after starting, and the first trigger condition F1 is true.

[0054] In the step S2, if the first trigger condition is triggered, the correction factor is adjusted according to the risk of exceeding the carbon emission and the nitrogen emission so that the carbon emission and the nitrogen emission are up to standard; otherwise, the correction factor remains unchanged.

[0055] In some embodiments, in the step S2, the method of adjusting the correction factor according to the risk of exceeding the carbon emission comprises:

[0056] If there is a risk of exceeding the carbon emission when the correction factor A is a first correction value, the correction factor A is reduced by a step of 0.01 until the carbon emission is up to standard, and the correction factor A is adjusted to a second correction value.

[0057] The method of adjusting the correction factor according to the risk of exceeding the nitrogen emission comprises:

[0058] If there is a risk of exceeding the nitrogen emission when the correction factor A is a first correction value, the correction factor A is increased by a step of 0.01 until the nitrogen emission is up to standard, and the correction factor A is adjusted to a third correction value.

[0059] Specifically, during the entire operation of the engine, the fuel correction factor A is adjusted. For example, after A = 1.05, there is a risk of exceeding the emission CO, when A = 1.04, there is no problem with the emission, then A ≥ 1.04 is all converted to 1.04; when A = 0.95 or less, there is a risk of exceeding the emission NOx, when A = 0.96, there is no problem with the emission, then A ≤ 0.96 is all converted to 0.96.

[0060] In the step S3, a second trigger condition of the adjustment of the correction factor is judged according to the engine operating state.

[0061] In some embodiments, in the step S3, the method of judging the second trigger condition of the adjustment of the correction factor according to the engine operating state comprises:

[0062] After the engine is started, if the first trigger condition is triggered, the second trigger condition is triggered after the engine is continuously running for a preset time G seconds or the total intake air quantity after the engine is combusted is greater than or equal to a preset mass H mg.

[0063] Specifically, after the engine is continuously running for a preset time G seconds or the total intake air quantity after the engine is combusted is greater than or equal to a preset mass H mg, it is judged whether the front oxygen has been closed loop, if yes, the second trigger condition F2 is false, otherwise, the second trigger condition F2 is true.

[0064] In step S4, if the first trigger condition is triggered, the correction factor is adjusted according to the risk of exceeding the carbon emission and the nitrogen emission, so that the carbon emission and the nitrogen emission meet the standard; otherwise, the correction factor remains unchanged.

[0065] In some embodiments, in step S4, the method for adjusting the correction factor according to the risk of exceeding the carbon emission comprises:

[0066] If the carbon emission has the risk of exceeding the standard when the correction factor A is the first correction value, the correction factor A is reduced by 0.01 until the carbon emission meets the standard, and the correction factor A is adjusted to the second correction value.

[0067] The method for adjusting the correction factor according to the risk of exceeding the nitrogen emission comprises:

[0068] If the nitrogen emission has the risk of exceeding the standard when the correction factor A is the first correction value, the correction factor A is increased by 0.01 until the nitrogen emission meets the standard, and the correction factor A is adjusted to the third correction value.

[0069] Specifically, during the entire operation of the engine, the fuel correction factor A is adjusted. For example, when A is greater than or equal to 1.05, there is a risk of exceeding the standard of the emission CO, when A is 1.04, there is no problem with the emission, then when A is greater than or equal to 1.04, it is all converted to 1.04; when A is less than or equal to 0.95, there is a risk of exceeding the standard of the emission NOx, when A is 0.96, there is no problem with the emission, then when A is less than or equal to 0.96, it is all converted to 0.96.

[0070] In summary, the scheme proposed in the present application can improve the emission robustness and ensure compliance with the law according to the technical content disclosed in the present application.

[0071] Embodiment 2

[0072] The present application discloses an adjustment system for a correction factor of a mechanical oil pump gasoline engine system. Figure 2 As shown in FIG. 1, the system 100 comprises: Figure 2

[0073] ​The first processing module 101 is configured to determine a first trigger condition for adjusting the correction factor according to the engine water temperature and the ambient temperature.

[0074] The second processing module 102 is configured to adjust the correction factor to make the carbon emission and the nitrogen emission meet the standard according to the exceeding risk of the carbon emission and the nitrogen emission if the first trigger condition is triggered; otherwise, the correction factor remains unchanged.

[0075] The third processing module 103 is configured to determine a second trigger condition for adjusting the correction factor according to the engine operating state.

[0076] The fourth processing module 104 is configured to adjust the correction factor to make the carbon emission and the nitrogen emission meet the standard according to the exceeding risk of the carbon emission and the nitrogen emission if the second trigger condition is triggered; otherwise, the correction factor remains unchanged.

[0077] According to the system of the second aspect of the present application, the first processing module 101 is specifically configured to determine the first trigger condition for adjusting the correction factor according to the engine water temperature and the ambient temperature by the following method:

[0078] Before the engine is started, if the engine water temperature is greater than or equal to a first preset temperature C ℃, the engine water temperature is less than or equal to a second preset temperature D ℃, and the ambient temperature is greater than or equal to a first preset temperature E ℃, the first trigger condition is triggered.

[0079] Specifically, before the engine is started, it is determined whether D ℃ ≥ engine water temperature ≥ C ℃ and ambient temperature ≥ E ℃ are met, and if so, the engine is started and enters the catalytic converter light-off stage after starting, and the first trigger condition F1 is true.

[0080] According to the system of the second aspect of the present application, the second processing module 102 is specifically configured to adjust the correction factor according to the exceeding risk of the carbon emission by the following method:

[0081] If the correction factor A is a first correction value and the carbon emission has an exceeding risk, the correction factor A is decreased by 0.01 until the carbon emission meets the standard, and the correction factor A is adjusted to a second correction value.

[0082] According to the exceeding risk of the nitrogen emission, the method for adjusting the correction factor includes:

[0083] If the correction factor A is a first correction value and the nitrogen emission has an exceeding risk, the correction factor A is increased by 0.01 until the nitrogen emission meets the standard, and the correction factor A is adjusted to a third correction value.

[0084] Specifically, the fuel correction factor A is adjusted throughout the entire operation of the engine. For example, when A is greater than or equal to 1.05, there is a risk of exceeding the emission standard of CO, and when A is 1.04, there is no problem with the emission. Therefore, when A is greater than or equal to 1.04, A is converted to 1.04. When A is less than or equal to 0.95, there is a risk of exceeding the emission standard of NOx, and when A is 0.96, there is no problem with the emission. Therefore, when A is less than or equal to 0.96, A is converted to 0.96.

[0085] According to the system of the second aspect of the present application, the third processing module 103 is specifically configured to adjust the correction factor A according to the second trigger condition of the adjustment of the correction factor A according to the engine operating state, which comprises:

[0086] After the engine is started and continuously operated for a preset time G seconds or the total intake volume after the engine is combusted is greater than or equal to a preset mass H mg, if the front oxygen is not closed loop, the second trigger condition is triggered.

[0087] Specifically, after the engine is continuously operated for a preset time G seconds or the total intake volume after the engine is combusted is greater than or equal to a preset mass H mg, it is determined whether the front oxygen is closed loop. If the front oxygen is closed loop, the second trigger condition F2 is false, otherwise, the second trigger condition F2 is true.

[0088] According to the system of the second aspect of the present application, the fourth processing module 104 is specifically configured to adjust the correction factor A according to the risk of exceeding the carbon emission standard, which comprises:

[0089] If the correction factor A is a first correction value, there is a risk of exceeding the carbon emission standard, then the correction factor A is reduced by 0.01 until the carbon emission standard is met, and the correction factor A is adjusted to a second correction value.

[0090] According to the risk of exceeding the nitrogen emission standard, the method for adjusting the correction factor A comprises:

[0091] If the correction factor A is a first correction value, there is a risk of exceeding the nitrogen emission standard, then the correction factor A is increased by 0.01 until the nitrogen emission standard is met, and the correction factor A is adjusted to a third correction value.

[0092] Specifically, the fuel correction factor A is adjusted throughout the entire operation of the engine. For example, when A is greater than or equal to 1.05, there is a risk of exceeding the emission standard of CO, and when A is 1.04, there is no problem with the emission. Therefore, when A is greater than or equal to 1.04, A is converted to 1.04. When A is less than or equal to 0.95, there is a risk of exceeding the emission standard of NOx, and when A is 0.96, there is no problem with the emission. Therefore, when A is less than or equal to 0.96, A is converted to 0.96.

[0093] Example 3:

[0094] The electronic device comprises a memory and a processor, the memory stores a computer program, and the processor implements the steps in the adjustment method of the correction factor of the mechanical oil pump gasoline engine system according to any one of the embodiments of the present application when executing the computer program.

[0095] Figure 3 The structure of the electronic device according to the embodiment of the present application is shown in FIG. Figure 3 The electronic device comprises a processor, a memory, a communication interface, a display screen and an input device connected through a system bus. The processor of the electronic device is used to provide computing and control capabilities. The memory of the electronic device comprises a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operating system and the computer program in the non-volatile storage medium to run. The communication interface of the electronic device is used to communicate with external terminals in a wired or wireless manner. The wireless manner can be achieved through WIFI, operator network, near field communication (NFC) or other technologies. The display screen of the electronic device can be a liquid crystal display screen or an electronic ink display screen. The input device of the electronic device can be a touch layer overlaid on the display screen, or a key, trackball or touchpad arranged on the shell of the electronic device, or an external keyboard, touchpad or mouse, etc.

[0096] Those skilled in the art can understand that, Figure 3 The structure shown in the above embodiment is only a structure diagram of part related to the technical solution of the present application, and does not constitute a limitation on the electronic device to which the scheme of the present application is applied. The specific electronic device can comprise more or fewer components than those shown in the figure, or combine certain components, or have a different component arrangement.

[0097] Embodiment 4:

[0098] The present application discloses a computer readable storage medium. The computer readable storage medium stores a computer program, and the computer program is executed by a processor to implement the steps in the adjustment method of the correction factor of the mechanical oil pump gasoline engine system according to any one of the embodiments of the present application.

[0099] Please note that the technical features of the above embodiments can be combined in any manner, and for the sake of brevity, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combinations of the technical features do not contradict each other, they shall be deemed to be within the scope of the present specification. The above embodiments only express several implementation manners of the present application, which are described in a more specific and detailed manner, but they should not be understood as limitations to the patent scope of the present application. It should be noted that for those skilled in the art, some modifications and improvements can be made without departing from the concept of the present application, and these shall fall within the scope of the present application. Therefore, the patent protection scope of the present application shall be subject to the appended claims.

[0100] Embodiments of the subject matter and the functional operations described in this specification can be implemented in digital electronic circuitry, in tangibly-embodied computer software or firmware, in computer hardware, including the structures disclosed in this specification and their structural equivalents, or in combinations of one or more of them. Embodiments of the subject matter described in this specification can be implemented as one or more computer programs, i.e., one or more modules of computer program instructions encoded on a tangible non-transitory program carrier for execution by, or to control the operation of, data processing apparatus. Alternatively or additionally, the program instructions can be encoded on an artificially generated propagated signal, e.g., a machine-generated electrical, optical, or electromagnetic signal that is generated to encode information for transmission to suitable receiver apparatus for execution by a data processing apparatus. The computer storage medium can be a machine-readable storage device, a machine-readable storage substrate, a random or serial access memory device, or a combination of one or more of them.

[0101] The processes and logic flows described in this specification can be performed by one or more programmable computers executing one or more computer programs to perform functions by operating on input data and generating output. The processes and logic flows can also be performed by special purpose logic circuitry, e.g., an FPGA (field programmable gate array) or an ASIC (application specific integrated circuit), and the apparatus can be implemented as special purpose logic circuitry.

[0102] Computers suitable for the execution of a computer program include, by way of example, general and / or special purpose microprocessors, or any other kind of central processing unit. Generally, a central processing unit will receive instructions and data from a read-only memory and / or a random access memory. The essential elements of a computer are a central processing unit for performing or executing instructions and one or more memory devices for storing instructions and data. Generally, a computer will also include, or be operatively coupled to receive data from or transfer data to, or both, one or more mass storage devices for storing data, e.g., magnetic, magneto-optical disks, or optical disks. However, a computer need not have such devices. Moreover, a computer can be embedded in another device, e.g., a mobile telephone, a personal digital assistant (PDA), a mobile audio or video player, a game console, a Global Positioning System (GPS) receiver, or a portable storage device (e.g., a universal serial bus (USB) flash drive), to name just a few.

[0103] Computer readable media suitable for storing computer program instructions and data include all forms of non-volatile memory, media and memory devices, including by way of example semiconductor memory devices, e.g., EPROM, EEPROM, and flash memory devices; magnetic disks, e.g., internal hard disks or removable disks; magneto-optical disks; and CD-ROM and DVD-ROM disks. The processor and the memory can be supplemented by, or incorporated in, special purpose logic circuitry.

[0104] While this specification contains many specifics, these should not be construed as limitations on the scope of any invention or on the required scope of patent protection. Certain features outside the scope of the claimed invention are described in order to provide a clearer understanding of the features of the particular inventions. Some features described in multiple embodiments can be combined in a single embodiment. Conversely, various features described in a single embodiment can be separated into multiple embodiments or combined in any suitable subcombination. Moreover, although features can be described above as acting in certain combinations and even initially claimed as such, one or more features from a claimed combination can in some cases be excised from the combination and the claimed combination can be directed to a subcombination or variation of a subcombination.

[0105] Similarly, while operations are depicted in the drawings in a particular order, this should not be understood as requiring such an order, nor that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing can be advantageous. Moreover, the separation of various system modules and components in the embodiments described above should not be understood as requiring such separation in all embodiments, and it should be understood that the described program components and systems can generally be integrated in a single software product or packaged into multiple software products.

[0106] Thus, particular embodiments of the subject matter have been described. Other embodiments are within the scope of the following claims. In some cases, actions recited in the claims can be performed in a different order and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve the desired results. In certain implementations, multitasking and parallel processing can be advantageous.

[0107] The above descriptions are only preferred embodiments of the present application and are not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of protection of the present application.

[0108] Although some specific embodiments of the present application have been described in detail by way of example with reference to the accompanying drawings, it is to be understood that the above examples are intended to be illustrative only and are not intended to limit the scope of the present application. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A method of adjusting a correction factor of a mechanical oil pump gasoline engine system, characterized by, The method comprises: Step S1, judging a first trigger condition of adjustment of the correction factor according to the engine water temperature and the ambient temperature; Step S2, if the first trigger condition is triggered, adjusting the correction factor according to the risk of exceeding the carbon emission and the nitrogen emission so as to make the carbon emission and the nitrogen emission meet the standard; otherwise, the correction factor remains unchanged; Step S3, judging a second trigger condition of adjustment of the correction factor according to the engine operating state; Step S4, if the second trigger condition is triggered, adjusting the correction factor according to the risk of exceeding the carbon emission and the nitrogen emission so as to make the carbon emission and the nitrogen emission meet the standard; otherwise, the correction factor remains unchanged; In the step S1, the method of judging the first trigger condition of adjustment of the correction factor according to the engine water temperature and the ambient temperature comprises: Before the engine is started, if the engine water temperature is greater than or equal to a first preset temperature C ℃, the engine water temperature is less than or equal to a second preset temperature D ℃, and the ambient temperature is greater than or equal to a first preset temperature E ℃, the first trigger condition is triggered; In the step S3, the method of judging the second trigger condition of adjustment of the correction factor according to the engine operating state comprises: After the engine is started, if the engine continues to operate for a preset time G seconds or the total amount of intake air after the engine is combusted is greater than or equal to a preset mass H mg, and the front oxygen is not closed loop, the second trigger condition is triggered.

2. The adjustment method of a correction factor of a mechanical oil pump gasoline engine system according to claim 1, characterized by, In the steps S2 and S4, the method of adjusting the correction factor according to the risk of exceeding the carbon emission comprises: If the carbon emission has the risk of exceeding the standard when the correction factor A is a first correction value, the correction factor A is reduced by a step length of 0.01 until the carbon emission meets the standard, and the correction factor A is adjusted to a second correction value.

3. The method of claim 1, wherein the mechanical oil pump gasoline engine system correction factor is adjusted based on the engine speed and the engine load. In the steps S2 and S4, the method of adjusting the correction factor according to the risk of exceeding the nitrogen emission comprises: If the nitrogen emission has the risk of exceeding the standard when the correction factor A is the first correction value, the correction factor A is increased by the step length of 0.01 until the nitrogen emission meets the standard, and the correction factor A is adjusted to a third correction value.

4. An adjustment system for a correction factor of a mechanical oil pump gasoline engine system, characterized by, The system adopts the method of any one of claims 1-3, and the system comprises: A first processing module configured to judge a first trigger condition of adjustment of the correction factor according to the engine water temperature and the ambient temperature; A second processing module configured to, if the first trigger condition is triggered, adjust the correction factor according to the risk of exceeding the carbon emission and the nitrogen emission so as to make the carbon emission and the nitrogen emission meet the standard; otherwise, the correction factor remains unchanged; A third processing module configured to judge a second trigger condition of adjustment of the correction factor according to the engine operating state; A fourth processing module configured to, if the second trigger condition is triggered, adjust the correction factor according to the risk of exceeding the carbon emission and the nitrogen emission so as to make the carbon emission and the nitrogen emission meet the standard; otherwise, the correction factor remains unchanged.

5. An electronic device, comprising: The electronic device comprises a memory and a processor, the memory stores a computer program, and the processor implements the steps of the adjustment method of the correction factor of the mechanical oil pump gasoline engine system in any one of claims 1 to 3 when executing the computer program.

6. A computer readable storage medium characterized by The computer readable storage medium stores a computer program, and the computer program is executed by the processor to implement the steps in the adjustment method of the correction factor of the mechanical oil pump gasoline engine system according to any one of claims 1 to 3.

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