A minimum ignition angle control method, device, equipment and storage medium

Abstract

The application discloses a minimum ignition angle control method, device, equipment and storage medium, and the method comprises the steps of obtaining an engine speed change rate when a transmission system of a vehicle is disconnected, determining whether to enter a fast accelerator condition according to the engine speed change rate, obtaining a preset minimum ignition angle and a minimum ignition angle compensation angle when the vehicle is in the fast accelerator condition, compensating the preset minimum ignition angle by the minimum ignition angle compensation angle after a first time delay after entering the fast accelerator condition, obtaining a corrected minimum ignition angle, controlling the engine to work by using the corrected minimum ignition angle at most within a second time after obtaining the corrected minimum ignition angle, and controlling the engine to work by using the preset minimum ignition angle when the time reaches the second time or the time is within the second time and a quit condition is met.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to engine control technology, and particularly relate to a minimum ignition angle control method, device, equipment and storage medium. BACKGROUND

[0002] After the vehicle starts and during the warm-up process, some users like to fast press and fast collect the accelerator in the original gear, feel the so-called "powerful power" sound of the vehicle, but the engine combustion is not good at the moment of loosening the accelerator. The main reasons for poor combustion under this working condition are: the demand torque of the engine is rapidly reduced to 0, and the throttle and the ignition angle are quickly responded to respond to the torque demand, and the ignition angle is directly delayed to the minimum ignition angle, resulting in poor engine combustion during cold start or warm-up process.

[0003] At present, there is a lack of a method that can effectively improve the combustion of the engine under the above working condition. SUMMARY

[0004] The present application provides a minimum ignition angle control method, device, equipment and storage medium to effectively improve the combustion of the engine under fast pressing working condition.

[0005] In a first aspect, the embodiments of the present application provide a minimum ignition angle control method, comprising:

[0006] When the transmission system of the vehicle is disengaged, the engine speed change rate is obtained, and it is determined whether to enter the fast pressing working condition according to the engine speed change rate;

[0007] When the vehicle is in the fast pressing working condition, a preset minimum ignition angle and a minimum ignition angle compensation angle are obtained;

[0008] After entering the fast pressing working condition, the preset minimum ignition angle is compensated by the minimum ignition angle compensation angle after a first time delay, to obtain a corrected minimum ignition angle;

[0009] After obtaining the corrected minimum ignition angle, the engine is controlled to work at most within a second time length by using the corrected minimum ignition angle;

[0010] When the time length reaches the second time length or the time length is within the second time length and meets the exit condition, the engine is controlled to work by using the preset minimum ignition angle.

[0011] Optionally, the minimum ignition angle compensation angle includes one or more of a temperature compensation angle, an altitude compensation angle, an injection mode compensation angle, and an air-fuel ratio compensation angle;

[0012] The minimum ignition angle compensation angle is the sum of one or more of the temperature compensation angle, the altitude compensation angle, the injection mode compensation angle, and the air-fuel ratio compensation angle.

[0013] Optionally, the exit condition comprises:

[0014] The transmission system is disengaged, the engine is off or the engine is in an idle state and the engine speed is less than a speed threshold.

[0015] Optionally, the speed threshold is a sum of a target speed and a speed correction amount.

[0016] The target speed is matched with a vehicle operating condition, and the speed correction amount is a calibration value.

[0017] Optionally, the first time length is 0.2 seconds.

[0018] Optionally, the second time length is 0.6 seconds.

[0019] Optionally, the speed correction amount is 300 r / min.

[0020] In a second aspect, an embodiment of the present application further provides a minimum ignition angle control device, comprising a minimum ignition angle control unit, the minimum ignition angle control unit being configured to:

[0021] When the transmission system of the vehicle is disengaged, an engine speed change rate is obtained, and it is determined whether to enter a fast accelerator operating condition according to the engine speed change rate.

[0022] When the vehicle is in the fast accelerator operating condition, a preset minimum ignition angle is obtained, and a minimum ignition angle compensation angle is obtained.

[0023] After entering the fast accelerator operating condition, the preset minimum ignition angle is compensated by the minimum ignition angle compensation angle to obtain a corrected minimum ignition angle after a first time length.

[0024] After the corrected minimum ignition angle is obtained, the engine is controlled to work by using the corrected minimum ignition angle at most within a second time length.

[0025] When the time length reaches the second time length or the time length is within the second time length and an exit condition is met, the engine is controlled to work by using the preset minimum ignition angle.

[0026] In a third aspect, an embodiment of the present application further provides an electronic device, comprising at least one processor and a memory in communication connection with the at least one processor.

[0027] The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor to enable the at least one processor to execute any one of the minimum ignition angle control methods recorded in the embodiments of the present application.

[0028] Fourthly, embodiments of the present invention also provide a computer-readable storage medium, characterized in that the computer-readable storage medium stores computer instructions, which are used to cause a processor to execute any of the minimum ignition angle control methods described in the embodiments of the present invention.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention proposes a minimum ignition angle control method. In this method, when the vehicle is in a fast-pressing condition, the preset minimum ignition angle is adjusted by the minimum ignition angle compensation angle. After entering the fast-pressing condition and after a first duration, the adjusted preset minimum ignition angle is used for engine control in a second duration. This can effectively improve the combustion characteristics of the engine under fast-pressing conditions and avoid the problem of abnormal noise in the exhaust pipe under fast-pressing conditions. Attached Figure Description

[0030] Figure 1 This is a flowchart of the minimum ignition angle control method in the embodiment;

[0031] Figure 2 This is a schematic diagram of the minimum ignition angle control in the embodiment;

[0032] Figure 3 This is a flowchart of another minimum ignition angle control method in the embodiment;

[0033] Figure 4 This is a schematic diagram of the electronic device structure in the embodiment. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0035] Example 1

[0036] Figure 1 This is a flowchart of the minimum ignition angle control method in the embodiment, for reference. Figure 1 Minimum ignition angle control methods include:

[0037] S101. When the vehicle's transmission system is disengaged, obtain the engine speed change rate and determine whether to enter the rapid acceleration mode based on the engine speed change rate.

[0038] For example, in this embodiment, the vehicle's transmission system can be considered as the vehicle's clutch system. The vehicle's transmission system can be considered disengaged when the following conditions are met:

[0039] The vehicle is in P or N gear, or the clutch switch is in the open (disengaged) position.

[0040] In this embodiment, when the vehicle's transmission system is disengaged, if the rate of change of engine speed is greater than the rate of change of engine speed threshold, the vehicle is considered to have entered the tipping condition; otherwise, it is determined that the vehicle has not entered the tipping condition.

[0041] S102. When the vehicle is in a state of rapid acceleration, obtain the preset minimum ignition angle and the minimum ignition angle compensation angle.

[0042] For example, in this embodiment, the minimum ignition angle is the ignition angle at which the engine can maintain combustion, which is generally related to the engine speed and load;

[0043] The minimum ignition angle can be determined through calibration tests. During calibration, the combustion stability of the engine is monitored by equipment such as cylinder (engine cylinder) pressure sensors and emission analyzers to determine the engine combustion boundary. When the torque requirement is 0, the actual ignition angle is taken as the minimum ignition angle.

[0044] In this embodiment, the preset minimum ignition angle is set to the minimum ignition angle determined through calibration tests.

[0045] In this embodiment, the minimum ignition angle compensation angle can be an empirical value or determined through calibration tests, simulation tests, etc.

[0046] Among them, the minimum ignition angle compensation angle is set to a positive value, which increases the preset minimum ignition angle when used to compensate for the preset minimum ignition angle.

[0047] S103. After entering the rapid acceleration mode, after a first delay, the preset minimum ignition angle is compensated by the minimum ignition angle compensation angle to obtain the corrected minimum ignition angle.

[0048] In this embodiment, the purpose of setting the first duration is:

[0049] To avoid engine speed or torque fluctuations when the vehicle jumps directly from the current preset minimum ignition angle to the corrected minimum ignition angle to control the engine as soon as it enters tipping mode.

[0050] S104. After obtaining the corrected minimum ignition angle, the engine operation shall be controlled by the corrected minimum ignition angle for at most the second duration.

[0051] In this embodiment, the purpose of setting the second duration is:

[0052] The minimum ignition angle control method can take into account the minimum ignition angle setting when fuel supply is restored (after engine fuel cut-off);

[0053] At this time, when using the modified minimum ignition angle for engine control, abnormal noise that may be generated in the exhaust pipe when fuel supply is restored can be eliminated;

[0054] Based on this, the second duration is set to continue from the first duration so that the second duration can cover the fuel injection recovery period under all tipping conditions. At the same time, it ensures that the correction of the minimum ignition angle only works in a very small area near the moment of throttle release, avoiding the problem of high engine idle speed at the beginning of fuel injection recovery.

[0055] For example, in this embodiment, the second duration can be determined through a calibration test. During calibration, under the condition of rapid acceleration, the engine can be controlled by a preset minimum ignition angle, and the value of the second duration can be determined based on the magnitude, location, frequency, etc. of the abnormal noise appearing at the exhaust pipe.

[0056] S105. When the duration reaches the second duration or the duration is within the second duration and the exit condition is met, the engine operation is controlled by a preset minimum ignition angle.

[0057] Figure 2 This is a schematic diagram of the minimum ignition angle control in the embodiment, for reference. Figure 2 Combining steps S103 to S105, the process from vehicle startup to meeting the exit conditions (using modified minimum ignition angle for engine control) can be divided into four stages: ①, ②, ③, and ④.

[0058] Among them, at least during stages ①, ②, and ③, the vehicle's transmission system is disengaged. At the end of stage ①, if the rate of change of engine speed is greater than the rate of change of engine speed threshold, it is considered to have entered the tipin condition.

[0059] The tipin flag can be set. When the vehicle is in tipin mode, the tipin flag is set to 1; otherwise, the tipin flag is set to 0.

[0060] The duration of phase ② is the first duration. During phase ②, the engine is controlled using a preset minimum ignition angle.

[0061] The duration of phase ③ is the second duration. During phase ③, engine control is performed using a modified minimum ignition angle.

[0062] Among them, the ignition angle correction flag can be set. When the engine is controlled by using the minimum ignition angle correction, the ignition angle correction flag is set to 1; otherwise, the ignition angle correction flag is set to 0.

[0063] In stage ④, the engine control will stop using the modified minimum ignition angle and will resume using the preset minimum ignition angle.

[0064] For example, in this embodiment, the exit condition can be set according to requirements. For instance, the exit condition can be considered met if the following conditions are met:

[0065] When the engine speed drops below a specified speed, or when the exhaust noise of the vehicle drops below a specified noise threshold.

[0066] This embodiment proposes a minimum ignition angle control method. In this method, when the vehicle is in a fast-pressing condition, the preset minimum ignition angle is adjusted by the minimum ignition angle compensation angle. After entering the fast-pressing condition and after a first duration, the adjusted preset minimum ignition angle is used to control the engine in the second duration. This can effectively improve the combustion characteristics of the engine in the fast-pressing condition and avoid the problem of abnormal noise in the exhaust pipe position in the fast-pressing condition.

[0067] exist Figure 1 Based on the scheme shown, in one possible implementation, the minimum ignition angle compensation angle includes one or more of the following: temperature compensation angle, altitude compensation angle, injection mode compensation angle, and air-fuel ratio compensation angle.

[0068] The minimum ignition angle compensation angle is the sum of one or more of the following compensation angles: temperature compensation angle, altitude compensation angle, injection mode compensation angle, and air-fuel ratio compensation angle.

[0069] In this scheme, the minimum ignition angle compensation angle can be determined by combining one or more external conditions such as temperature (engine coolant temperature), altitude, injection mode, and air-fuel ratio.

[0070] For a single condition, different temperatures, altitudes, injection modes, and air-fuel ratios correspond to different minimum ignition angle compensation angles.

[0071] For combinations of multiple conditions, different combinations of conditions correspond to different minimum ignition angle compensation angles.

[0072] For example, in this solution, for a single condition, the compensation angle corresponding to different condition values ​​is determined by calibration.

[0073] For example, the temperature compensation angle corresponding to the temperature (engine coolant temperature) condition can be determined with reference to Table 1:

[0074] Table 1

[0075] Water temperature °C -30 -20 -10 0 20 40 60 80 Temperature compensation angle 30 30 30 30 30 20 15 0

[0076] The altitude compensation angle corresponding to the altitude (coefficient) conditions can be determined with reference to Table 2:

[0077] Table 2

[0078] Altitude (coefficient) 0.6 0.7 0.8 0.9 Altitude compensation angle 15 10 5 0

[0079] The injection mode compensation angle corresponding to the injection mode can be determined by referring to Table 3:

[0080] Table 3

[0081] Injection mode Single injection Multiple injection Injection mode compensation angle 10 10

[0082] The air-fuel ratio compensation angle corresponding to the air-fuel ratio can be determined with reference to Table 4:

[0083] Table 4

[0084] Air-fuel ratio 0.9 1 1.1 Air-fuel ratio compensation angle 0 0 5

[0085] For example, in this solution, if the minimum ignition angle compensation angle is determined based on a single condition, then the compensation angle corresponding to the condition is the minimum ignition angle compensation angle.

[0086] For example, if only temperature is used as the condition for determining the minimum ignition angle compensation angle, then the minimum ignition angle compensation angle is the temperature compensation angle at the corresponding temperature; if only altitude is used as the condition for determining the minimum ignition angle compensation angle, then the minimum ignition angle compensation angle is the altitude compensation angle at the corresponding altitude.

[0087] If the minimum ignition angle compensation angle is determined based on multiple conditions, then the sum of the compensation angles corresponding to each condition is the minimum ignition angle compensation angle.

[0088] For example, if temperature and injection mode are used as conditions for determining the minimum ignition angle compensation angle, then the minimum ignition angle compensation angle is the sum of the temperature compensation angle at the corresponding temperature and the injection mode compensation angle at the corresponding injection mode.

[0089] For example, in this solution, for each condition, the compensation angle under the corresponding condition is accurately calibrated according to the actual working conditions, and the size of the compensation angle is set to be related to the frequency and magnitude of abnormal noise at the exhaust pipe when the engine is controlled by using the preset minimum ignition angle.

[0090] Specifically, the calibrated compensation angle ensures that when the engine is controlled using the minimum corrected ignition angle corresponding to the compensation angle, the engine can burn well and there will be no problem of abnormal noise in the engine exhaust due to excessive ignition angle retarding and engine afterburning.

[0091] exist Figure 1 Based on the scheme shown, in one possible implementation, the exit conditions include:

[0092] The transmission system is engaged, the engine is off, or the engine is idling and the engine speed is less than the speed threshold.

[0093] For example, the transmission system can be considered engaged when the following conditions are met:

[0094] The gear is either forward or reverse, or the clutch is engaged.

[0095] For example, in this scheme, the speed threshold can be determined through experience, calibration tests, or simulation tests, wherein the speed threshold satisfies:

[0096] When the engine speed is below the preset speed at which fuel supply is restored after the engine is cut off, and the engine speed is near the speed threshold, the exhaust pipe noise is less than the specified noise threshold.

[0097] When the exit conditions include the engine being idle and the engine speed being less than a speed threshold, in one possible implementation, the speed threshold is the sum of the target speed and the speed correction amount;

[0098] The target speed is matched with the vehicle's operating conditions, and the speed correction is the calibrated value.

[0099] For example, in this solution, the target speed is related to the vehicle's operating conditions. The correspondence between the two is related to the engine control method preset in the vehicle's engine control system. This engine control method adopts existing technology, and its specific implementation process will not be described in detail.

[0100] For example, in this scheme, the speed correction amount is a calibrated value. When the target speed is determined, the sum of the speed correction amount and the target speed (i.e., the speed threshold) satisfies:

[0101] When the engine speed is below the preset speed at which fuel supply is restored after the engine is cut off, and the engine speed is near the speed threshold, the exhaust pipe noise is less than the specified noise threshold.

[0102] Furthermore, when the speed threshold is the sum of the target speed and the speed correction amount, the speed correction amount is set to 300 r / min.

[0103] exist Figure 1 Based on the scheme shown, in one feasible implementation, the first duration is set to 0.2 seconds.

[0104] exist Figure 1 Based on the scheme shown, in one feasible implementation, the second duration is 0.6 seconds.

[0105] In this embodiment, the schemes corresponding to any of the aforementioned minimum ignition angle control methods can be freely arranged and combined. Figure 3 This is a flowchart of another minimum ignition angle control method in the embodiment, see reference. Figure 3 For example, in one possible implementation, the minimum ignition angle control method includes:

[0106] S201. When the vehicle's transmission system is disengaged, obtain the engine speed change rate and determine whether to enter the rapid acceleration mode based on the engine speed change rate.

[0107] In this scheme, when the engine speed change rate is greater than 1800, the system is set to enter the rapid acceleration (tipin) mode.

[0108] S202. When the vehicle is in a state of rapid acceleration, obtain the preset minimum ignition angle.

[0109] In this scheme, the specific implementation methods of steps S201 and S202 are the same as the corresponding contents recorded in steps S101 and S102.

[0110] S203. Determine the reference conditions and determine the minimum ignition angle compensation angle based on the reference conditions.

[0111] In this plan, the reference conditions include temperature conditions, altitude conditions, injection mode conditions, and air-fuel ratio conditions.

[0112] When determining the minimum ignition angle compensation angle, the engine coolant temperature, altitude coefficient, injection mode, and air-fuel ratio must be determined.

[0113] The temperature compensation angle corresponding to the current engine coolant temperature is determined according to the first preset MAP table, the altitude compensation angle corresponding to the current altitude coefficient is determined according to the second preset MAP table, the injection mode compensation angle corresponding to the current injection mode is determined according to the third preset MAP table, and the air-fuel ratio compensation angle corresponding to the current air-fuel ratio is determined according to the fourth preset MAP table.

[0114] The sum of the temperature compensation angle, altitude compensation angle, injection mode compensation angle, and air-fuel ratio compensation angle is taken as the minimum ignition angle compensation angle.

[0115] In this scheme, the temperature compensation angle is set as the main influencing factor of the minimum ignition angle compensation angle, and the main reason for this is:

[0116] The preset minimum ignition angle is calibrated based on the hot engine state. If the actual ignition angle is set to the preset minimum ignition angle during the cold or warm-up process, it will cause poor combustion in the engine. At the same time, due to the large retardation of the ignition angle, the engine will have afterburning, which will cause abnormal noise in the exhaust pipe.

[0117] In this scheme, the purpose of setting the altitude compensation angle is:

[0118] This addresses the issue of changes in engine combustion caused by variations in air intake and oxygen content at different altitudes.

[0119] In this scheme, the purpose of setting the injection mode compensation angle and air-fuel ratio compensation angle is:

[0120] By taking into account the motion parameters at various boundaries during engine operation, the accuracy of the minimum ignition angle compensation angle is improved.

[0121] S204. After entering the rapid acceleration mode, after a delay of 0.2s, the preset minimum ignition angle is compensated by the minimum ignition angle compensation angle to obtain the corrected minimum ignition angle.

[0122] S205. After obtaining the corrected minimum ignition angle, the engine operation shall be controlled using the corrected minimum ignition angle for at most 0.6s.

[0123] S206. When the exit conditions are met, resume engine operation using the preset minimum ignition angle.

[0124] If the following conditions are met within 0.6 seconds, the engine operation will resume using the preset minimum ignition angle control:

[0125] The transmission system is engaged, the engine is off, or the engine is idling and the engine speed is less than the speed threshold.

[0126] Among them, the speed threshold is the sum of the target speed and the speed correction amount, the target speed is matched with the vehicle operating conditions, and the speed correction amount is the calibration value.

[0127] refer to Figure 2 In this scheme, when the engine is controlled by the preset minimum ignition angle, it needs to be slowly restored to the preset minimum ignition angle according to a certain filtering time to avoid fluctuations in engine speed and torque.

[0128] Example 2

[0129] This embodiment proposes a minimum ignition angle control device, including a minimum ignition angle control unit, which is used for:

[0130] When the vehicle's transmission system is disengaged, the engine speed change rate is obtained, and the decision on whether to enter the rapid acceleration mode is based on the engine speed change rate.

[0131] When the vehicle is in a state of rapid acceleration, obtain the preset minimum ignition angle and the minimum ignition angle compensation angle.

[0132] After entering the rapid acceleration mode, after a first delay, the preset minimum ignition angle is compensated by the minimum ignition angle compensation angle to obtain the corrected minimum ignition angle.

[0133] After obtaining the corrected minimum ignition angle, the engine operation can be controlled by the corrected minimum ignition angle for at most the second duration.

[0134] When the duration reaches the second duration or the duration is within the second duration and the exit condition is met, the engine operation is controlled by a preset minimum ignition angle.

[0135] For example, in this embodiment, the minimum ignition angle control unit can be specifically configured to implement any of the minimum ignition angle control methods described in Embodiment 1. Its implementation process and beneficial effects are the same as the corresponding content described in Embodiment 1, and will not be repeated here.

[0136] Example 3

[0137] Figure 4 A schematic diagram of an electronic device 10 that can be used to implement embodiments of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0138] like Figure 4 As shown, the electronic device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12 or a random access memory (RAM) 13, communicatively connected to the at least one processor 11. The memory stores computer programs executable by the at least one processor. The processor 11 can perform various appropriate actions and processes based on the computer program stored in the ROM 12 or loaded from storage unit 18 into the RAM 13. The RAM 13 may also store various programs and data required for the operation of the electronic device 10. The processor 11, ROM 12, and RAM 13 are interconnected via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0139] Multiple components in electronic device 10 are connected to I / O interface 15, including: input unit 16, such as keyboard, mouse, etc.; output unit 17, such as various types of displays, speakers, etc.; storage unit 18, such as disk, optical disk, etc.; and communication unit 19, such as network card, modem, wireless transceiver, etc. Communication unit 19 allows electronic device 10 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0140] Processor 11 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. Processor 11 performs the various methods and processes described above, such as the minimum ignition angle control method.

[0141] In some embodiments, the minimum ignition angle control method may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on electronic device 10 via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the minimum ignition angle control method described above may be performed. Alternatively, in other embodiments, processor 11 may be configured to perform the minimum ignition angle control method by any other suitable means (e.g., by means of firmware).

[0142] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0143] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0144] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0145] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0146] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or computing systems that include middleware components (e.g., application servers), or computing systems that include frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0147] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0148] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A method for controlling the minimum ignition angle, characterized in that, include: When the vehicle's transmission system is disengaged, the engine speed change rate is acquired, and the decision on whether to enter the rapid acceleration mode is based on the engine speed change rate. When the vehicle is in the aforementioned rapid acceleration condition, obtain the preset minimum ignition angle and the minimum ignition angle compensation angle. After entering the rapid acceleration mode, after a first time delay, the preset minimum ignition angle is compensated by the minimum ignition angle compensation angle to obtain the corrected minimum ignition angle. After obtaining the corrected minimum ignition angle, the engine operation is controlled by the corrected minimum ignition angle for at most the second duration. When the duration reaches the second duration or the duration is within the second duration and the exit condition is met, the engine is controlled to operate using the preset minimum ignition angle.

2. The minimum ignition angle control method as described in claim 1, characterized in that, The minimum ignition angle compensation angle includes one or more of the following: temperature compensation angle, altitude compensation angle, injection mode compensation angle, and air-fuel ratio compensation angle. The minimum ignition angle compensation angle is the sum of one or more of the following compensation angles: temperature compensation angle, altitude compensation angle, injection mode compensation angle, and air-fuel ratio compensation angle.

3. The minimum ignition angle control method as described in claim 1, characterized in that, The exit conditions include: The transmission system is engaged, the engine is off, or the engine is idling and the engine speed is less than the speed threshold.

4. The minimum ignition angle control method as described in claim 3, characterized in that, The speed threshold is the sum of the target speed and the speed correction amount; The target speed is matched with the vehicle operating conditions, and the speed correction amount is a calibrated value.

5. The minimum ignition angle control method as described in claim 1, characterized in that, The first duration is 0.2 seconds.

6. The minimum ignition angle control method as described in claim 1, characterized in that, The second duration is 0.6 seconds.

7. The minimum ignition angle control method as described in claim 4, characterized in that, The speed correction is 300 r / min.

8. A minimum ignition angle control device, characterized in that, Includes a minimum ignition angle control unit, which is used for: When the vehicle's transmission system is disengaged, the engine speed change rate is acquired, and the decision on whether to enter the rapid acceleration mode is based on the engine speed change rate. When the vehicle is in the aforementioned rapid acceleration condition, obtain the preset minimum ignition angle and the minimum ignition angle compensation angle. After entering the rapid acceleration mode, after a first time delay, the preset minimum ignition angle is compensated by the minimum ignition angle compensation angle to obtain the corrected minimum ignition angle. After obtaining the corrected minimum ignition angle, the engine operation is controlled by the corrected minimum ignition angle for at most the second duration. When the duration reaches the second duration or the duration is within the second duration and the exit condition is met, the engine is controlled to operate using the preset minimum ignition angle.

9. An electronic device, characterized in that, It includes at least one processor and a memory communicatively connected to the at least one processor; The memory stores a computer program that can be executed by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the minimum ignition angle control method according to any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that cause a processor to execute the minimum ignition angle control method according to any one of claims 1-7.

Images