Vehicle control method, electronic equipment, vehicle and medium

Abstract

The invention discloses a vehicle control method, electronic equipment, a vehicle, a computer readable storage medium and a computer program product. The method comprises the steps that the opening and closing state of a target valve is determined according to state information of a vehicle engine, so that target gas in an exhaust pipeline of the vehicle engine enters a gas inlet pipeline of the vehicle engine along a gas guide pipeline, and compression ignition is avoided when the vehicle engine is switched to a running state, the target valve comprises a first valve of the gas inlet pipeline and a second valve of the gas guide pipeline, external air enters the gas inlet pipeline when the first valve is opened, and target gas enters the gas inlet pipeline when the second valve is opened. Thus, the target gas in the exhaust pipeline of the vehicle engine can enter the gas inlet pipeline along the gas guide pipeline, and when the vehicle engine is switched to the running state, due to the fact that the oxygen content of the target gas is low, the target gas entering the air cylinder is difficult to burn after being compressed, and compression ignition is avoided when the vehicle engine is switched to the running state.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a control method of a vehicle, an electronic device, a vehicle, a computer readable storage medium and a computer program product. BACKGROUND

[0002] When the range-extending engine is started again after being stopped and enters the drag stage, the gas in a certain cylinder in the compression stroke is compressed to a high-temperature and high-pressure state to cause abnormal combustion, i.e., compression ignition. In the related art, to avoid the compression ignition problem of the range-extending engine, a large throttle valve can be opened to allow external low-temperature gas to enter the engine cylinder to suppress compression ignition. However, this way can easily cause engine shaking and other phenomena to cause noise, which affects the vehicle driving experience of the user to some extent. SUMMARY

[0003] The present application provides a control method of a vehicle, an electronic device, a vehicle, a computer readable storage medium and a computer program product.

[0004] The present application provides a control method of a vehicle, the method comprising:

[0005] According to the state information of the vehicle engine, the opening and closing state of the target valve is determined, so that the target gas in the exhaust pipeline of the vehicle engine enters the intake pipeline of the vehicle engine along the gas guide pipeline, to avoid compression ignition when the vehicle engine switches to the running state, wherein the target valve comprises a first valve of the intake pipeline and a second valve of the gas guide pipeline, and when the first valve is opened, external air enters the intake pipeline, and when the second valve is opened, the target gas enters the intake pipeline.

[0006] In this way, in the present application, according to the state information of the vehicle engine, the opening and closing state of the target valve is determined, so that the target gas in the exhaust pipeline of the vehicle engine enters the intake pipeline of the vehicle engine along the gas guide pipeline, and then when the vehicle engine switches to the running state and the target gas in the intake pipeline enters the cylinder, the target gas entering the cylinder is difficult to burn after being compressed due to the low oxygen content of the target gas, thereby avoiding compression ignition when the vehicle engine switches to the running state. In addition, compared with the way of opening a large throttle valve to suppress compression ignition, the present application makes the target gas in the exhaust pipeline of the vehicle engine enter the intake pipeline of the vehicle engine, thereby avoiding the noise caused by opening a large throttle valve, so as to ensure the vehicle driving experience of the user to some extent.

[0007] In some embodiments, the state information comprises an engine speed.

[0008] Thus, the state information includes engine speed. In this way, according to the change of engine speed, the opening and closing state of the target valve can be accurately controlled, and thus the amount of target gas introduced can be ensured to both inhibit compression ignition and not affect the normal combustion of the next start.

[0009] In some embodiments, the determining the opening and closing state of the target valve according to the state information of the vehicle engine comprises:

[0010] According to the state information, the target valve is controlled to switch between the first opening and closing state and the second opening and closing state, wherein, in the case that the target valve is in the first opening and closing state, the first valve is fully closed and the second valve is fully open, and in the case that the target valve is in the second opening and closing state, the first valve is fully open and the second valve is fully closed.

[0011] Thus, according to the state information, the target valve is controlled to switch between the first opening and closing state and the second opening and closing state, wherein, in the case that the first valve is fully closed and the second valve is fully open, the target valve is in the first opening and closing state, and in the case that the first valve is fully open and the second valve is fully closed, the target valve is in the second opening and closing state. In this way, based on the state information, by controlling the target valve to switch between the first opening and closing state and the second opening and closing state, in the case that the target valve is in the first opening and closing state, the first valve is fully closed and the second valve is fully open, and the amount of target gas filling the cylinder is ensured to inhibit compression ignition; in the second opening and closing state, the intake is not affected during normal operation, avoiding the instability of the gas mixture ratio caused by partial opening or closing, and thus the intake demand during normal operation of the engine can be met, and compression ignition can be inhibited.

[0012] In some embodiments, the controlling the target valve to switch between the first opening and closing state and the second opening and closing state according to the state information comprises:

[0013] According to the state information, a target switching time for the target valve to switch to the first opening and closing state is determined;

[0014] According to the target switching time and the state information, the target valve is controlled to switch between the first opening and closing state and the second opening and closing state.

[0015] According to the state information, a target switching time at which the target valve switches to the first open-close state is determined, and according to the target switching time and the state information, the target valve is controlled to switch between the first open-close state and the second open-close state. In this way, based on the state information, the target switching time at which the target valve switches to the first open-close state can be obtained in real time, and according to the target switching time and the state information, the target valve can be controlled to switch back to the second open-close state from the first open-close state to restore the normal state, thereby ensuring the vehicle driving experience of the user to a certain extent while avoiding compression ignition when the vehicle engine switches to the running state.

[0016] In some embodiments, the target switching time at which the target valve switches to the first open-close state is determined according to the state information, including:

[0017] In the case where the vehicle engine switches to the stop state, the target switching time is determined according to the state information, wherein the engine speed of the vehicle engine starts to decrease in the case where the vehicle engine switches to the stop state.

[0018] In this way, in the case where the vehicle engine switches to the stop state, the target switching time is determined according to the state information, wherein the engine speed of the vehicle engine starts to decrease in the case where the vehicle engine switches to the stop state. In this way, in the case where the engine enters the stop state, the target switching time is determined according to the state information, which can ensure that the target switching time matches the actual initial engine speed, avoid complex calculation under dynamic speed, and inhibit compression ignition without affecting normal combustion of the engine at the next start.

[0019] In some embodiments, the target switching time at which the target valve switches to the first open-close state is determined according to the state information in the case where the vehicle engine switches to the stop state, including:

[0020] In the case where the state switching signal is obtained, the target switching time is determined according to the state information, wherein the state switching signal is used to control the vehicle engine to switch from the running state to the stop state.

[0021] In this way, in the case where the state switching signal is obtained, the target switching time is determined according to the state information, wherein the state switching signal is used to control the vehicle engine to switch from the running state to the stop state. In this way, the state switching signal can trigger the determination of the target switching time according to the state information, and through the triggering of the explicit electrical signal, the real-time and deterministic response of the system is ensured, and the misoperation caused by ambiguous working condition judgment is avoided, so as to ensure that the target switching time determined according to the state information matches the actual initial engine speed, and further ensure that the target gas can both inhibit compression ignition at the next start and be completely discharged during the start drag stage without affecting normal combustion.

[0022] In some embodiments, the determining the target switching time according to the state information upon obtaining the state switching signal comprises:

[0023] The target switching time is determined according to the state information at the time when the state switching signal is obtained upon obtaining the state switching signal.

[0024] Thus, the target switching time is determined according to the state information at the time when the state switching signal is obtained upon obtaining the state switching signal. In this way, the state switching signal can trigger the determination of the target switching time, and the target switching time is determined according to the state information at the time when the state switching signal is obtained, so as to ensure that the target switching time determined according to the state information matches the actual initial rotating speed of the engine, and further ensure that the target gas can both inhibit compression ignition at the next start and be completely discharged at the start dragging stage without affecting normal combustion.

[0025] In some embodiments, the method further comprises:

[0026] The switching time at the time when the state switching signal is obtained is determined as the target switching time upon obtaining the state switching signal.

[0027] The determining the target switching time according to the state information upon obtaining the state switching signal comprises:

[0028] The switching time at the time when the state switching signal is obtained is determined as the target switching time upon obtaining the state switching signal.

[0029] Thus, the switching time at the time when the state switching signal is obtained is determined as the target switching time upon obtaining the state switching signal. In this way, by obtaining the switching time corresponding to the rotating speed at each time when the engine is in the running state, dynamic preparation can be made for determining the target switching time of the target valve switching to the first open-close state, so as to immediately call the switching time at the corresponding rotating speed upon obtaining the state switching signal, avoid control delay or error caused by rotating speed change, and further ensure that the target valve switches to the first open-close state at the best time, so that the imported target gas can just inhibit compression ignition and not affect the combustion at the next start.

[0030] In some embodiments, the state information comprises an engine speed, and the determining the switching time for the target valve to switch to the first open-close state at the current time point according to the state information of the vehicle engine at the current time point when the vehicle engine is in the running state comprises:

[0031] determining the switching time for the target valve to switch to the first open-close state at the current time point according to the engine speed of the vehicle engine at the current time point and the predetermined speed-time mapping relationship data when the vehicle engine is in the running state.

[0032] Thus, the switching time for the target valve to switch to the first open-close state at the current time point is determined according to the engine speed of the vehicle engine at the current time point and the predetermined speed-time mapping relationship data when the vehicle engine is in the running state. In this way, the predetermined speed-time mapping relationship data provides a data basis for quickly locking the target switching time at the time point when a subsequent state switching signal is received, ensuring that the target valve can be controlled to switch to the first open-close state at the optimal time corresponding to the current engine speed when the engine is in the stopped state, and accurately introducing the target gas.

[0033] In some embodiments, the method further comprises:

[0034] determining the speed-time mapping relationship data according to the oxygen content of the intake pipeline when the target valve switches to the first open-close state at different switching times under different engine speeds.

[0035] Thus, the speed-time mapping relationship data is determined according to the oxygen content of the intake pipeline when the target valve switches to the first open-close state at different switching times under different engine speeds. In this way, the abstract compression suppression requirement is converted into quantifiable speed-time parameters, so that the switching time at different speeds can correspond to the target gas introduction amount that just meets the oxygen content threshold, thereby ensuring that the introduced exhaust gas can reduce the oxygen content to suppress compression and avoid introducing too much to affect the combustion quality at the next start.

[0036] In some embodiments, the controlling the target valve to switch between the first open-close state and the second open-close state according to the target switching time and the state information comprises:

[0037] starting timing from the time point when the state switching signal is acquired;

[0038] controlling the target valve to switch to the first open-close state when the timing reaches the target switching time;

[0039] According to the state information, the target valve is controlled to switch to the second open-close state.

[0040] In this way, the acquisition time of the state switching signal starts timing; when the timing reaches the target switching time, the target valve is controlled to switch to the first open-close state; according to the state information, the target valve is controlled to switch to the second open-close state. In this way, by timing from the acquisition time of the state switching signal to the target switching time, the target gas can be introduced in the target time in the engine stop state to ensure that the introduction amount is sufficient to inhibit compression ignition and does not affect the combustion quality of the next start, realize accurate control of the exhaust gas introduction amount, and control the target valve to switch to the second open-close state to restore the normal state through the engine speed constraint of the state information, to ensure that the target valve state after the engine stops does not affect the subsequent working condition, and to prepare for the normal air intake process when the engine starts next time.

[0041] In some embodiments, the state information includes an engine speed, the engine speed starts to decrease when the engine switches to the stop state, and according to the state information, the target valve is controlled to switch to the second open-close state, including:

[0042] The target valve is controlled to switch to the second open-close state when the engine speed is zero.

[0043] In this way, the target valve is controlled to switch to the second open-close state when the engine speed is zero. In this way, by controlling the target valve to switch to the second open-close state when the engine speed is zero, the normal state is restored to ensure that the target gas is introduced sufficiently when the engine is in the stop state, and to ensure that the target valve state after the stop does not affect the subsequent working condition, and to prepare for the normal air intake process when the engine starts next time, and to ensure that the normal combustion after starting is not disturbed.

[0044] The embodiment of the present application provides an electronic device, including a memory and a processor, the memory stores a computer program, and the computer program is executed by the processor to realize the steps of the above method.

[0045] The embodiment of the present application provides a vehicle, including the above electronic device, realizing the steps of the above method.

[0046] The embodiment of the present application provides a computer readable storage medium, which stores a computer program, and when the computer program is executed by one or more processors, the steps of the above method are realized.

[0047] The embodiment of the present application provides a computer program product, including a computer program / instruction, which is executed by a processor to realize the steps of the above method.

[0048] The electronic device, the vehicle, the computer readable storage medium and the computer program product provided by the embodiments of the present application determine the opening and closing state of the target valve according to the state information of the vehicle engine, so that the target gas in the exhaust pipeline of the vehicle engine enters the intake pipeline of the vehicle engine along the gas guide pipeline, to avoid compression ignition when the vehicle engine switches to the running state. The target valve includes a first valve of the intake pipeline and a second valve of the gas guide pipeline. When the first valve is opened, external air enters the intake pipeline. When the second valve is opened, the target gas enters the intake pipeline. In this way, the opening and closing state of the target valve can be determined according to the state information of the vehicle engine, so that the target gas in the exhaust pipeline of the vehicle engine enters the intake pipeline of the vehicle engine along the gas guide pipeline, and then when the vehicle engine switches to the running state and the target gas in the intake pipeline enters the cylinder, the target gas entering the cylinder is difficult to burn after being compressed due to the low oxygen content of the target gas, thereby avoiding compression ignition when the vehicle engine switches to the running state. Compared with the way of opening the throttle valve to suppress compression ignition, the present application can avoid noise caused by opening the throttle valve by making the target gas in the exhaust pipeline of the vehicle engine enter the intake pipeline of the vehicle engine, so as to ensure the vehicle driving experience of the user to a certain extent.

[0049] Additional aspects and advantages of the embodiments of the present application will be in part apparent and in part pointed out hereinafter in the description of the embodiments of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0050] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description of the embodiments of the present application, taken in conjunction with the accompanying drawings.

[0051] Figure 1 is one of the flowcharts of the control method of the vehicle according to some embodiments of the present application;

[0052] Figure 2 is an engine working condition schematic diagram according to some embodiments of the present application;

[0053] Figure 3 is one of the engine schematic diagrams according to some embodiments of the present application;

[0054] Figure 4 is another flowchart of the control method of the vehicle according to some embodiments of the present application;

[0055] Figure 5 is another engine schematic diagram according to some embodiments of the present application;

[0056] Figure 6 is a third flowchart of the control method of the vehicle according to some embodiments of the present application;

[0057] Figure 7 Figure 4 is a flowchart of a control method of a vehicle according to some embodiments of the present application;

[0058] Figure 8 Figure 5 is a flowchart of a control method of a vehicle according to some embodiments of the present application;

[0059] Figure 9 Figure 6 is a flowchart of a control method of a vehicle according to some embodiments of the present application;

[0060] Figure 10 Figure 7 is a flowchart of a control method of a vehicle according to some embodiments of the present application;

[0061] Figure 11 Figure 8 is a flowchart of a control method of a vehicle according to some embodiments of the present application. DETAILED DESCRIPTION

[0062] Embodiments of the present application are described in detail below with reference to the attached drawings. The embodiments described below are examples of the present application and are not intended to limit the present application. The same or similar components are denoted by the same or similar reference numerals throughout the drawings.

[0063] When the range-extending engine is restarted after shutdown and enters the drag phase, the gas in a certain cylinder in the compression stroke is compressed to a high-temperature and high-pressure state, and abnormal combustion occurs, i.e., compression ignition.

[0064] When the range-extending engine is restarted after shutdown, if a certain cylinder is in the compression stroke in the four-stroke cycle, the residual gas in the cylinder will be rapidly compressed, and the temperature in the cylinder will rise sharply to the self-ignition point of gasoline, eventually leading to the abnormal phenomenon of self-combustion without ignition, i.e., compression ignition.

[0065] In the related art, to avoid the compression ignition problem of the range-extending engine, the throttle is opened wide to allow low-temperature gas to enter the engine cylinder to suppress compression ignition. However, the wide-open throttle state breaks the pressure balance of the intake system, and a large amount of low-temperature air suddenly rushes into the cylinder, which can cause uneven intake of each cylinder and irregular pressure fluctuations in the drag phase, thereby causing mechanical vibration of the engine body and affecting the user's vehicle driving experience to some extent.

[0066] In addition, the introduction of low-temperature air by opening the throttle often requires the coordinated control of multiple components such as the supercharger and the pressure relief valve. Not only does this increase the complexity of the control logic, but it can also further exacerbate vibration and noise due to the coordination error of multiple components, forming a vicious cycle of solving one problem while introducing more problems.

[0067] Based on the above problems, please refer to Figure 1 The embodiment of the application provides a vehicle control method, which comprises the following steps:

[0068] 01: According to the state information of the vehicle engine, the opening and closing state of the target valve is determined, so that the target gas in the exhaust pipe of the vehicle engine enters the intake pipe of the vehicle engine along the guide gas pipe, so as to avoid compression ignition when the vehicle engine switches to the running state, wherein the target valve comprises a first valve of the intake pipe and a second valve of the guide gas pipe, and when the first valve is opened, external air enters the intake pipe, and when the second valve is opened, the target gas enters the intake pipe.

[0069] The embodiment of the application provides a vehicle control device. The vehicle control method of the embodiment of the application can be realized by the vehicle control device of the embodiment of the application. Specifically, the vehicle control device comprises a control module. The control module is used for determining the opening and closing state of the target valve according to the state information of the vehicle engine, so that the target gas in the exhaust pipe of the vehicle engine enters the intake pipe of the vehicle engine along the guide gas pipe, so as to avoid compression ignition when the vehicle engine switches to the running state, wherein the target valve comprises a first valve of the intake pipe and a second valve of the guide gas pipe, and when the first valve is opened, external air enters the intake pipe, and when the second valve is opened, the target gas enters the intake pipe.

[0070] The embodiment of the application also provides an electronic device comprising a memory and a processor. The vehicle control method of the embodiment of the application can be realized by the electronic device of the embodiment of the application. Specifically, the memory stores a computer program, and the processor is used for determining the opening and closing state of the target valve according to the state information of the vehicle engine, so that the target gas in the exhaust pipe of the vehicle engine enters the intake pipe of the vehicle engine along the guide gas pipe, so as to avoid compression ignition when the vehicle engine switches to the running state, wherein the target valve comprises a first valve of the intake pipe and a second valve of the guide gas pipe, and when the first valve is opened, external air enters the intake pipe, and when the second valve is opened, the target gas enters the intake pipe.

[0071] Specifically, the vehicle control method of the embodiment of the application can be used for the four-stroke cycle state of the vehicle engine as shown in Figure 2 By determining the opening and closing state of the target valve according to the state information of the vehicle engine, the target gas is guided into the cylinder, and the compression stroke is avoided to cause the piston to go up and compress the gas in the cylinder to generate high pressure.

[0072] The engine state information comprises the stop state and the running state of the engine and the corresponding rotating speed.

[0073] The target valve includes a first valve and a second valve, and the opening and closing states of the first valve and the second valve are determined according to the state information of the engine, so that the target gas can be introduced and the combustion-supporting gas can be discharged when the engine is switched to the stop state, and compression ignition is avoided when the engine is switched to the running state.

[0074] The first valve is a premixing valve, please refer to the engine structure shown in Figure 3 The first valve is arranged between the exhaust gas introduction port of the intake system and the rear end of the air filter, and is used to control the intake of external air into the intake pipeline.

[0075] The second valve is an EGR (Exhaust Gas Recirculation) valve, please refer to the engine structure shown in Figure 3 The second valve is arranged at the rear part of the catalyst and the exhaust gas is introduced into the front end of the supercharger, and is used to control the intake of the target gas into the intake pipeline.

[0076] In one example, when the first valve is closed, the intake of external air into the intake pipeline is blocked, and the combustion-supporting gas is reduced; when the first valve is opened, the intake pipeline normally intakes air. When the second valve is opened, the exhaust gas in the exhaust pipeline can enter the intake pipeline through the gas guide pipeline, and then enter the cylinder.

[0077] The target gas refers to the exhaust gas introduced by the gas guide pipeline after the engine is burned. Because the exhaust gas contains a large amount of inert gas such as carbon dioxide and nitrogen, when the engine is switched to the stop state, the target gas can be introduced into the intake pipeline and the engine cylinder by opening the second valve, thereby diluting the combustion-supporting gas such as oxygen in the intake pipeline and the cylinder, reducing the concentration of the combustible gas (gasoline) and the combustion-supporting gas, and destroying the combustion conditions required for compression ignition from the physical level, so as to avoid compression ignition when the engine is switched to the running state.

[0078] Compared with the compression ignition suppression by relying on the coordinated control of multiple actuators such as the throttle and the supercharger, the control method of the vehicle of the embodiment can determine the opening and closing states of the target valve according to the running state of the engine, and by only controlling the opening and closing states of the first valve and the second valve, the cylinder can be filled with target gas when the engine is switched to the stop state, so that when the engine is switched to the running state next time, even if the compression stroke makes the piston ascend to compress the gas in the cylinder, the oxygen in the cylinder is diluted to below the minimum limit required for compression ignition, and the combustible gas cannot be ignited, thereby avoiding compression ignition and to a certain extent, ensuring the vehicle driving experience of the user.

[0079] In summary, in the embodiments of the present application, the opening and closing state of the target valve can be determined according to the state information of the vehicle engine, so that the target gas in the exhaust pipeline of the vehicle engine enters the intake pipeline of the vehicle engine along the gas guide pipeline, and then when the vehicle engine switches to the running state, the target gas in the intake pipeline enters the cylinder. Since the oxygen content of the target gas is low, the target gas entering the cylinder is difficult to burn after being compressed, thereby avoiding compression ignition when the vehicle engine switches to the running state. Moreover, compared with the method of opening the throttle valve to suppress compression ignition, the present application can avoid noise caused by opening the throttle valve by making the target gas in the exhaust pipeline of the vehicle engine enter the intake pipeline of the vehicle engine, so that the user's vehicle driving experience can be ensured to a certain extent.

[0080] In some embodiments, the state information includes an engine speed.

[0081] Specifically, the engine speed refers to the number of revolutions per minute of the engine crankshaft, which is used to determine the opening and closing state of the target valve and the introduction time and amount of the target gas.

[0082] It can be understood that the change of the engine speed will affect the flow state, pressure, temperature and other changes of the gas in the engine cylinder, thereby changing the occurrence conditions of compression ignition. For example, the higher the speed, the more violent the in-cylinder gas movement, and the more exhaust gas can be introduced per unit time; the lower the speed, the more gentle the gas movement, and the longer the required introduction time.

[0083] In one example, in the case of a vehicle emergency brake stall, the engine switches to the stop state when the speed is high, the in-cylinder gas movement is violent, the pressure and temperature decay rapidly, and if the exhaust gas is introduced too late, the exhaust gas may not be able to fully fill the cylinder due to the rapid drop in speed, and compression ignition cannot be effectively suppressed.

[0084] Therefore, it is necessary to close the first valve earlier and open the second valve, so that the target can quickly fill the cylinder and dilute the combustion-supporting material and combustible material before the speed drops, thereby avoiding starting compression ignition.

[0085] In addition, in the case where the engine switches to the stop state when the speed is low, the in-cylinder gas flow is gentle, and the pressure and temperature are relatively stable, and if the introduction time is too early, it may cause excessive residual exhaust gas, and the mixture may be too lean when the engine starts next time, which may cause starting difficulty, shaking, excessive emission, and the like.

[0086] Therefore, it is necessary to close the first valve later and open the second valve to introduce the target gas, so as to avoid excessive residual exhaust gas affecting the next start.

[0087] According to the change of the engine speed, the opening and closing state of the target valve can be accurately controlled, thereby ensuring that the amount of introduced target gas can suppress compression ignition and will not affect the normal combustion of the next start.

[0088] Thus, the state information includes engine speed. In this way, according to the change of the engine speed, the opening and closing state of the target valve can be accurately controlled, and thus the amount of target gas introduced can be both inhibited from compression ignition and not affect the normal combustion of the next start.

[0089] Referring to Figure 4 In some embodiments, the step 01 (determining the opening and closing state of the target valve according to the state information of the vehicle engine) comprises:

[0090] 011: controlling the target valve to switch between the first opening and closing state and the second opening and closing state according to the state information, wherein in the case that the target valve is in the first opening and closing state, the first valve is fully closed and the second valve is fully open, and in the case that the target valve is in the second opening and closing state, the first valve is fully open and the second valve is fully closed.

[0091] In some embodiments, the control module is further configured to control the target valve to switch between the first opening and closing state and the second opening and closing state according to the state information, wherein in the case that the target valve is in the first opening and closing state, the first valve is fully closed and the second valve is fully open, and in the case that the target valve is in the second opening and closing state, the first valve is fully open and the second valve is fully closed.

[0092] In some embodiments, the processor is further configured to control the target valve to switch between the first opening and closing state and the second opening and closing state according to the state information, wherein in the case that the target valve is in the first opening and closing state, the first valve is fully closed and the second valve is fully open, and in the case that the target valve is in the second opening and closing state, the first valve is fully open and the second valve is fully closed.

[0093] Specifically, in the case that the target valve is in the first opening and closing state, the first valve is fully closed and the second valve is fully open, as Figure 5 The target valve schematic diagram shown can be considered that in this case, there is no fresh air entering the intake pipeline, and the intake pipeline is almost full of target gas, and thus the target gas can be introduced into the cylinder by means of the negative pressure in the cylinder in the engine stop state, thereby diluting the oxygen concentration in the cylinder to avoid compression ignition in the next start.

[0094] In the case that the target valve is in the second opening and closing state, the first valve is fully open and the second valve is fully closed, which is the intake logic in the normal running state of the engine. It can be considered that in this case, the intake pipeline is full of fresh air to meet the demand for oxygen for combustion in the running state of the engine, and to ensure the combustion efficiency and power output.

[0095] According to the state information, the target valve is switched between the first open-close state and the second open-close state, so that when the target valve is in the first open-close state, the first valve is fully closed and the second valve is fully open, enough target gas is ensured to fill the cylinder to suppress compression ignition; when the second open-close state ensures normal operation, the intake air is not affected, avoiding the instability of the gas mixture ratio caused by partial opening or closing.

[0096] In this way, according to the state information, the target valve is switched between the first open-close state and the second open-close state, wherein when the first valve is fully closed and the second valve is fully open, the target valve is in the first open-close state, and when the first valve is fully open and the second valve is fully closed, the target valve is in the second open-close state. In this way, based on the state information, by controlling the target valve to switch between the first open-close state and the second open-close state, when the target valve is in the first open-close state, the first valve is fully closed and the second valve is fully open, enough target gas is ensured to fill the cylinder to suppress compression ignition; when the second open-close state ensures normal operation, the intake air is not affected, avoiding the instability of the gas mixture ratio caused by partial opening or closing, thereby meeting the intake air demand of the engine during normal operation and achieving suppression of compression ignition.

[0097] Please refer to Figure 6 In some embodiments, step 011 (controlling the target valve to switch between the first open-close state and the second open-close state according to the state information) comprises:

[0098] 0111: determining a target switching time for the target valve to switch to the first open-close state according to the state information;

[0099] 0112: controlling the target valve to switch between the first open-close state and the second open-close state according to the target switching time and the state information.

[0100] In some embodiments, the control module is further configured to determine a target switching time for the target valve to switch to the first open-close state according to the state information. The control module is further configured to control the target valve to switch between the first open-close state and the second open-close state according to the target switching time and the state information.

[0101] In some embodiments, the processor is further configured to determine a target switching time for the target valve to switch to the first open-close state according to the state information. The processor is further configured to control the target valve to switch between the first open-close state and the second open-close state according to the target switching time and the state information.

[0102] Specifically, the target switching time refers to the time when the target valve switches to the first open-close state, which can be determined by the engine speed in the state information, to ensure that the amount of gas introduced into the cylinder at that time can suppress compression ignition, and can be completely discharged in the next engine start, without affecting normal combustion.

[0103] According to the target switching time and the state information, the target valve can be controlled to switch to the first opening and closing state to suppress compression ignition, and the target valve can be controlled to switch to the second opening and closing state to restore the normal state, thereby preparing for the normal intake flow process of the next engine start into the running state, ensuring the vehicle driving experience of the user to a certain extent, and avoiding compression ignition when the vehicle engine switches to the running state.

[0104] Compared with the compression ignition suppression by relying on the coordinated control of various actuators such as the throttle and the supercharger, the control method of the vehicle in the embodiments of the application can determine the target switching time of the target valve switching to the first opening and closing state according to the running state of the engine, and then control only the opening and closing states of the first valve and the second valve according to the target switching time and the state information, that is, control the target valve to switch between the first opening and closing state and the second opening and closing state, to achieve compression ignition suppression, thereby ensuring the vehicle driving experience of the user to a certain extent.

[0105] In this way, according to the state information, the target switching time of the target valve switching to the first opening and closing state is determined, and according to the target switching time and the state information, the target valve is controlled to switch between the first opening and closing state and the second opening and closing state. In this way, based on the state information, the target switching time of the target valve switching to the first opening and closing state can be obtained in real time, so that according to the target switching time and the state information, the target valve can be controlled to switch back to the second opening and closing state to restore the normal state after switching to the first opening and closing state, thereby ensuring the vehicle driving experience of the user to a certain extent while avoiding compression ignition when the vehicle engine switches to the running state.

[0106] Please refer to Figure 7 In some embodiments, step 0111 (determining the target switching time of the target valve switching to the first opening and closing state according to the state information) comprises:

[0107] 01111: In the case where the vehicle engine switches to the stop state, the target switching time is determined according to the state information, wherein the engine speed of the vehicle engine starts to decrease in the case where the vehicle engine switches to the stop state.

[0108] In some embodiments, the control module is further configured to determine the target switching time according to the state information in the case where the vehicle engine switches to the stop state, wherein the engine speed of the vehicle engine starts to decrease in the case where the vehicle engine switches to the stop state.

[0109] In some embodiments, the processor is further configured to determine the target switching time according to the state information in the case where the vehicle engine switches to the stop state, wherein the engine speed of the vehicle engine starts to decrease in the case where the vehicle engine switches to the stop state.

[0110] Specifically, in the case that the vehicle engine is switched to the stop state, the engine speed of the vehicle engine starts to decrease.

[0111] It can be understood that in the case that the engine is switched to the stop state, the initial engine speed of the stop state may not be unique, for example, the initial engine speed is high under sudden brake stall, the initial speed is low under slow parking stall, and if the fixed target valve switching time to the first opening and closing state is fixed, the exhaust gas introduction amount under different speeds may be too large, thereby causing compression ignition and other problems.

[0112] In order to accurately control the introduced target gas amount to suppress compression ignition and not to affect the normal combustion of the next start, the specific time point of the target valve switching to the first opening and closing state, i.e., the target switching time, can be determined according to the engine speed in the state information, and then the introduced target gas amount is controlled.

[0113] In the case that the vehicle engine is switched to the stop state, the target switching time of the target valve switching to the first opening and closing state is determined according to the engine speed in the state information, the target switching time is matched with the actual initial speed of the engine, so as to accurately control the time of the introduced target gas in the stop state of the engine, and then ensure that the introduced target gas amount can suppress compression ignition and not affect the normal combustion of the next start.

[0114] Compared with suppressing compression ignition in the start phase, the control method of the embodiments of the application can determine the target switching time according to the state information in the case that the vehicle engine is switched to the stop state, and then control the target valve to switch to the first opening and closing state to suppress compression ignition, avoiding complex calculation under dynamic speed.

[0115] In this way, in the case that the vehicle engine is switched to the stop state, the target switching time is determined according to the state information, wherein in the case that the vehicle engine is switched to the stop state, the engine speed of the vehicle engine starts to decrease. In this way, in the case that the engine enters the stop state, the target switching time is determined according to the state information, which can ensure that the target switching time is matched with the actual initial speed of the engine, avoid complex calculation under dynamic speed, and suppress compression ignition without affecting the normal combustion of the next start of the engine.

[0116] In some embodiments, step 01111 (determining the target switching time according to the state information in the case that the vehicle engine is switched to the stop state) comprises:

[0117] 011111: In the case that the state switching signal is acquired, the target switching time is determined according to the state information, wherein the state switching signal is used to control the vehicle engine to switch from the running state to the stop state.

[0118] In some embodiments, the control module is further configured to determine the target switching time according to the state information in response to obtaining the state switching signal, wherein the state switching signal is configured to control the vehicle engine to switch from the running state to the stopped state.

[0119] In some embodiments, the processor is further configured to determine the target switching time according to the state information in response to obtaining the state switching signal, wherein the state switching signal is configured to control the vehicle engine to switch from the running state to the stopped state.

[0120] Specifically, the switching signal refers to a signal sent by a vehicle control unit (VCU) to an engine control unit (ECU) in response to the vehicle engine switching to the stopped state, which is configured to control the vehicle engine to switch from the running state to the stopped state and trigger the determination of the target switching time according to the state information.

[0121] In response to the ECU obtaining the state switching signal, the target switching time can be determined according to the state information, so that the real-time and deterministic response of the system can be ensured through explicit electrical signal triggering in response to the engine being in the stopped state, and misoperation caused by ambiguous working condition judgment can be avoided, so that the ECU can switch the target valve to the first open-closed state according to the target switching time to suppress compression ignition.

[0122] In this way, the target switching time is determined according to the state information in response to obtaining the state switching signal, which is configured to control the vehicle engine to switch from the running state to the stopped state. In this way, the state switching signal can trigger the determination of the target switching time according to the state information, and the real-time and deterministic response of the system can be ensured through explicit electrical signal triggering, and misoperation caused by ambiguous working condition judgment can be avoided, so as to ensure that the target switching time determined according to the state information matches the actual initial speed of the engine, and further ensure that the target gas can both ensure sufficient target gas to suppress compression ignition during the next start and be completely discharged during the start drag stage, without affecting normal combustion.

[0123] In some embodiments, step 011111 (determining the target switching time according to the state information in response to obtaining the state switching signal) comprises:

[0124] 0111111: determining the target switching time according to the state information at the time of obtaining the state switching signal.

[0125] In some embodiments, the control module is further configured to determine the target switching time according to the state information at the time of obtaining the state switching signal in response to obtaining the state switching signal.

[0126] In some embodiments, the processor is further configured to, in response to obtaining the state switching signal, determine the target switching time according to the state information at the time when the state switching signal is obtained.

[0127] Specifically, in response to obtaining the state switching signal, the ECU can be triggered to obtain the state information at the time when the state switching signal is obtained, and then determine the corresponding target switching time according to the state information, so as to ensure that the target switching time determined according to the state information matches the actual initial engine speed.

[0128] For example, in the case of a speed of 3000 revolutions, the corresponding target switching time can be obtained as 120 ms, and then the target valve can be controlled to switch to the first open-closed state after 120 ms, so as to ensure that the target switching time determined according to the state information matches the actual initial engine speed.

[0129] In this way, in response to obtaining the state switching signal, the target switching time is determined according to the state information at the time when the state switching signal is obtained. In this way, the state switching signal can trigger the determination of the target switching time, and the target switching time is determined according to the state information at the time when the state switching signal is obtained, so as to ensure that the target switching time determined according to the state information matches the actual initial engine speed, and then ensure that the target gas can both guarantee enough target gas to suppress compression ignition at the next start and be completely discharged during the start drag stage, without affecting normal combustion.

[0130] In some embodiments, the method further comprises:

[0131] 0111112: In the case that the vehicle engine is in the running state, the switching time at which the target valve switches to the first open-closed state at the current time is determined according to the state information of the vehicle engine at the current time.

[0132] Step 0111111 (in response to obtaining the state switching signal, determining the target switching time according to the state information at the time when the state switching signal is obtained) comprises:

[0133] 01111111: In response to obtaining the state switching signal, the switching time at the time when the state switching signal is obtained is determined as the target switching time.

[0134] In some embodiments, the control module is further configured to, in the case that the vehicle engine is in the running state, determine the switching time at which the target valve switches to the first open-closed state at the current time according to the state information of the vehicle engine at the current time. The control module is further configured to, in response to obtaining the state switching signal, determine the switching time at the time when the state switching signal is obtained as the target switching time.

[0135] In some embodiments, the processor is further configured to, in a case where the vehicle engine is in the running state, determine, according to state information of the vehicle engine at a current time, a switching time at which the target valve is to be switched to the first open-closed state at the current time. The processor is further configured to, in a case where the state switching signal is acquired, determine the switching time at the time at which the state switching signal is acquired as the target switching time.

[0136] Specifically, in a case where the vehicle engine is in the running state, it can be considered that the engine speed is dynamically changing. By determining, according to state information of the vehicle engine at a current time, a switching time at which the target valve is to be switched to the first open-closed state at the current time, that is, by calculating, according to the engine speed of the current state information, a real-time switching time at which the target valve is to be switched to the first open-closed state at each time when the engine is running, it is ensured that the switching time at the corresponding speed can be immediately called in a case where the switching signal is acquired by the ECU, so as to avoid control delay or error caused by speed change.

[0137] In a case where the switching signal is acquired by the ECU, the switching time at the time at which the state switching signal is acquired is determined as the target switching time, that is, the switching time at the corresponding speed is immediately called as the target switching time, so as to accurately match the initial engine speed in the shutdown state and the target gas import amount, and ensure that the target valve is switched to the first open-closed state at the best time, so that the imported target gas can just inhibit compression ignition and not affect the next start combustion.

[0138] Thus, in a case where the vehicle engine is in the running state, a switching time at which the target valve is to be switched to the first open-closed state at a current time is determined according to state information of the vehicle engine at the current time. In a case where the state switching signal is acquired, the switching time at the time at which the state switching signal is acquired is determined as the target switching time. In this way, by acquiring the switching time corresponding to the speed at each time in a case where the vehicle engine is in the running state, dynamic preparation can be made for determining the target switching time at which the target valve is to be switched to the first open-closed state, so as to immediately call the switching time at the corresponding speed in a case where the state switching signal is acquired, avoid control delay or error caused by speed change, and further ensure that the target valve is switched to the first open-closed state at the best time, so that the imported target gas can just inhibit compression ignition and not affect the next start combustion.

[0139] In some embodiments, the state information includes the engine speed, and step 0111112 (in a case where the vehicle engine is in the running state, determining, according to state information of the vehicle engine at a current time, a switching time at which the target valve is to be switched to the first open-closed state at the current time) includes:

[0140] 01111121: determining, in a case where the vehicle engine is in a running state, a switching time for the target valve to switch to the first open-close state at a current time according to an engine speed of the vehicle engine at the current time and predetermined speed-time mapping relationship data.

[0141] In some embodiments, the control module is further configured to determine, in a case where the vehicle engine is in a running state, a switching time for the target valve to switch to the first open-close state at a current time according to an engine speed of the vehicle engine at the current time and predetermined speed-time mapping relationship data.

[0142] In some embodiments, the processor is further configured to determine, in a case where the vehicle engine is in a running state, a switching time for the target valve to switch to the first open-close state at a current time according to an engine speed of the vehicle engine at the current time and predetermined speed-time mapping relationship data.

[0143] Specifically, the speed-time mapping relationship data is shown in Table 1, which is a predetermined table of correspondence between engine speed and specific time for the control target valve to switch to the first open-close state, i.e., valve switching time.

[0144] Table 1

[0145]

[0146]

[0147] In a case where the vehicle engine is in a running state, according to the engine speed of the vehicle engine at the current time and the predetermined speed-time mapping relationship data, accurate control parameters can be reserved for the current engine operating condition in real time, providing a data basis for quickly locking the target switching time at this time when a subsequent state switching signal is received, ensuring that the target valve can be controlled to switch to the first open-close state at the optimal time corresponding to the current speed when the engine is in a stopped state, and accurately introducing the quantitative target gas.

[0148] Thus, in a case where the vehicle engine is in a running state, a switching time for the target valve to switch to the first open-close state at a current time is determined according to an engine speed of the vehicle engine at the current time and predetermined speed-time mapping relationship data. In this way, the predetermined speed-time mapping relationship data provides a data basis for quickly locking the target switching time at this time when a subsequent state switching signal is received, ensuring that the target valve can be controlled to switch to the first open-close state at the optimal time corresponding to the current speed when the engine is in a stopped state, and accurately introducing the quantitative target gas.

[0149] Please refer to Figure 8In some embodiments, the method further comprises:

[0150] 01111122: determining the speed-time mapping relationship data according to the oxygen content in the intake pipeline when the target valve switches to the first open-closed state at different switching times under different engine speeds.

[0151] In some embodiments, the control module is further configured to determine the speed-time mapping relationship data according to the oxygen content in the intake pipeline when the target valve switches to the first open-closed state at different switching times under different engine speeds.

[0152] In some embodiments, the processor is further configured to determine the speed-time mapping relationship data according to the oxygen content in the intake pipeline when the target valve switches to the first open-closed state at different switching times under different engine speeds.

[0153] Specifically, sufficient oxygen is one of the combustion-supporting materials for compression ignition. When the oxygen content is below a certain threshold, the combustion-supporting material is insufficient, which can prevent compression ignition from the root. Therefore, the oxygen concentration obtained by using an oxygen sensor installed in the intake pipeline as shown in Figure 3 can be used to determine whether compression ignition can be suppressed, thereby obtaining the speed-time mapping relationship data.

[0154] By obtaining the oxygen content in the intake pipeline when the target valve switches to the first open-closed state at different switching times under different engine speeds, the optimal switching time corresponding to different engine speeds can be obtained, and the speed-time mapping relationship data can be determined.

[0155] In one example, according to the combustion basic characteristics, when the oxygen concentration signal value fed back by the oxygen sensor is less than 2, the combustion-supporting material content is already below the minimum value that meets compression ignition.

[0156] Under different engine speeds, by testing the target valve switching to the first open-closed state at different switching times, the switching time that just makes the oxygen concentration less than 2 can be selected for each engine speed, and then the switching time is taken as the optimal switching time corresponding to the speed, and the speed-time mapping relationship data can be determined.

[0157] For example, it is found through experiments that when the speed is 3500, the opening time of 140 ms just makes the oxygen concentration less than 2; when the speed is 3000, the opening time of 120 ms meets the requirements, thereby establishing the mapping relationship of speed 3500 and 140 ms, speed 3000 and 120 ms, etc.

[0158] Thus, according to the oxygen content of the intake pipeline when the target valve switches to the first open-closed state at different switching times under different engine speeds, the speed-time mapping relationship data is determined. In this way, the abstract compression suppression requirement is converted into a quantifiable speed-time parameter, and the switching time at different speeds can correspond to the target gas introduction amount that just meets the oxygen content threshold, thereby ensuring that the introduced exhaust gas can reduce the oxygen content to suppress compression and avoid introducing too much to affect the combustion quality during the next start.

[0159] Please refer to Figure 9 In some embodiments, the step 0112 (controlling the target valve to switch between the first open-closed state and the second open-closed state according to the target switching time and the state information) comprises:

[0160] 01121: Start timing at the time when the state switching signal is acquired;

[0161] 01122: When timing to the target switching time, control the target valve to switch to the first open-closed state;

[0162] 01123: According to the state information, control the target valve to switch to the second open-closed state.

[0163] In some embodiments, the control module is further configured to start timing at the time when the state switching signal is acquired. The control module is further configured to control the target valve to switch to the first open-closed state when timing to the target switching time. The control module is further configured to control the target valve to switch to the second open-closed state according to the state information.

[0164] In some embodiments, the processor is further configured to start timing at the time when the state switching signal is acquired. The processor is further configured to control the target valve to switch to the first open-closed state when timing to the target switching time. The processor is further configured to control the target valve to switch to the second open-closed state according to the state information.

[0165] Specifically, controlling the target valve to switch between the first open-closed state and the second open-closed state comprises controlling the target valve to switch to the first open-closed state and controlling the target valve to switch to the second open-closed state.

[0166] In the case of the ECU acquiring the state switching signal, the control of the target valve to switch to the first open-closed state starts timing through its internal timer, starts timing from the time when the state switching signal is acquired, provides a reference for the subsequent accurate control of the timing of the target valve to switch to the first open-closed state, and ensures accurate matching with the target switching time.

[0167] In the case of timing to the target switching time, the target valve is controlled to switch to the first open-close state, so as to ensure that the target valve can switch to the first open-close state at the optimal moment in the engine speed decay stage during the engine shutdown process, and the target gas is introduced at the precise time point, so as to avoid insufficient target gas introduction amount due to too early or too late time, and thus unable to inhibit compression ignition, or excessive target gas introduction affecting the combustion after starting.

[0168] The target valve is controlled to switch to the second open-close state according to the engine speed of the state information, for example, in the case of engine speed being zero, the target valve is controlled to switch to the second open-close state, so as to restore the normal state and prepare for the next engine start.

[0169] In this way, the timing starts from the acquisition time of the state switching signal; the target valve is controlled to switch to the first open-close state when the timing reaches the target switching time; and the target valve is controlled to switch to the second open-close state according to the state information. In this way, by timing from the acquisition time of the state switching signal to the target switching time, the target gas can be introduced at the target time when the engine is in the shutdown state, so as to ensure that the introduction amount is sufficient to inhibit compression ignition and does not affect the combustion quality of the next start, to realize precise control of the exhaust gas introduction amount, and to control the target valve to switch to the second open-close state according to the engine speed of the state information to restore the normal state, so as to ensure that the target valve state after the engine shutdown does not affect the subsequent working conditions, and to prepare for the normal intake process when the engine starts next time.

[0170] Please refer to Figure 10 In some embodiments, the state information includes the engine speed, the engine speed starts to decrease when the engine switches to the shutdown state, and step 01123 (controlling the target valve to switch to the second open-close state according to the state information) includes:

[0171] 011231: controlling the target valve to switch to the second open-close state when the engine speed is zero.

[0172] Specifically, in the case of engine speed being zero, it can be considered that the engine shutdown has been completed and the target gas introduction to inhibit compression ignition has been realized, at this time, there is no need to maintain the first open-close state, and the target valve can be controlled to switch to the second open-close state.

[0173] In some embodiments, the control module is further configured to control the target valve to switch to the second open-close state when the engine speed is zero.

[0174] In some embodiments, the processor is further configured to control the target valve to switch to the second open-close state when the engine speed is zero.

[0175] It can be understood that when the engine speed is zero, the cylinder no longer generates negative pressure, the negative pressure in the cylinder for driving the exhaust gas introduction disappears, and it is meaningless to continue to maintain the first open-close state, and it is necessary to switch to the second open-close state to stop the exhaust gas introduction, and to restore the normal state to prepare for the normal intake process (such as fresh air entering) when the engine starts next time, and to ensure that the normal combustion after starting is not disturbed.

[0176] Therefore, the control target valve is switched to the second open-close state when the engine speed is zero. In this way, by controlling the control target valve to switch to the second open-close state when the engine speed is zero, the normal state is restored to ensure that the target gas is fully introduced when the engine is in the stopped state, and to ensure that the state of the target valve after stopping does not affect the subsequent working conditions, and to prepare for the normal intake process when the engine starts next time, and to ensure that the normal combustion after starting is not disturbed.

[0177] The following takes Figure 11 as an example to explain the flow of the control method of the vehicle of the embodiment of the application:

[0178] Firstly, the precondition of the control method of the vehicle of the embodiment of the application is that the vehicle is in the ready gear and the engine is running.

[0179] The ready gear is a symbol that the power system of the vehicle is ready, and the engine can be started or run only when the vehicle is in the ready gear, otherwise the vehicle cannot be controlled to realize the subsequent process.

[0180] The ECU calculates and prepares the subsequent control parameters when the engine is running to ensure that the control method of the embodiment of the application only acts on the engine stopping process, otherwise the vehicle cannot be controlled to realize the subsequent process.

[0181] Then, the ECU can output the STOP_OpenDelay (switching time) according to the engine speed and the speed-time mapping relationship table obtained in advance, to prepare for the subsequent control.

[0182] Then, by judging whether the VCU sends a mode switching instruction, in the case that the VCU mode switching instruction (engine stopping instruction) makes the engine switch from the running state to the stopped state, the vehicle control function of suppressing compression ignition is triggered to avoid misoperation of the target valve during normal operation.

[0183] Next, during the engine stopping process, the speed continues to decrease, and the ECU records the STOP_OpenDelay as the STOP_OpenDelay_D (target switching time) at the moment when the stopping instruction is received, to ensure that the target switching time strictly matches the speed at the moment of stopping.

[0184] Then, the ECU starts timing at the time when the state switching signal is acquired. Until the timing value equals the STOP_OpenDelay_D, the next action is performed.

[0185] Next, the ECU controls the premixing valve, i.e., the first valve, to be fully closed, and the EGR valve, i.e., the second valve, to be fully open, i.e., controls the target valve to switch to the first open-close state, and then uses the negative pressure in the cylinder during engine stop to guide the exhaust gas, i.e., the target gas, into the cylinder, dilutes the oxygen concentration, and suppresses compression ignition from the source.

[0186] Then, whether the engine is completely stopped is determined by determining whether the engine speed is zero.

[0187] Finally, the premixing valve and the EGR valve are released from control under the condition that the engine speed is zero, and the normal state is switched back, i.e., the target valve is switched to the second open-close state, so as to prepare for the normal intake flow for the next engine start and ensure that the normal combustion after start is not disturbed.

[0188] The application also provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of the control method of the vehicle described above are implemented.

[0189] It can be understood that the computer program includes computer program code. The computer program code can be in the form of source code, object code, an executable file, or some intermediate form. The computer-readable storage medium can include any entity or device capable of carrying the computer program code, a recording medium, a U disk, a mobile hard disk, a magnetic disk, an optical disk, a computer memory, a read-only memory (ROM), a random access memory (RAM), and a software distribution medium, etc.

[0190] In the description of the present specification, the description referring to the terms "specifically", "further", "particularly", "can be understood", and the like means that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not mean to refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0191] Any procedural or methodological descriptions in flow charts or otherwise described herein can be understood to represent modules, segments, or portions of executable request code including one or more steps for implementing the particular logic function or process, and the scope of preferred embodiments of the present application includes additional implementations in which the functions can be performed in an order other than that shown or discussed, including substantially simultaneously, or in reverse order, as will be understood by those having ordinary skill in the art to which embodiments of the present application pertain.

[0192] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and should not be construed as limiting the present application, and those ordinarily skilled in the art can make changes, modifications, substitutions, and variations to the above-described embodiments within the scope of the present application.

Claims

1. A method for controlling a vehicle, characterized in that, include: Based on the vehicle engine status information, the opening and closing status of the target valve is determined, so that the target gas in the vehicle engine's exhaust pipe enters the vehicle engine's intake pipe along the air guide pipe, in order to avoid compression ignition when the vehicle engine switches to the operating state. The target valve includes a first valve in the intake pipe and a second valve in the air guide pipe. When the first valve is open, outside air enters the intake pipe, and when the second valve is open, the target gas enters the intake pipe.

2. The method according to claim 1, characterized in that, The status information includes engine speed.

3. The method according to claim 1, characterized in that, Determining the opening / closing state of the target valve based on the vehicle engine status information includes: Based on the status information, the target valve is controlled to switch between a first open / closed state and a second open / closed state. When the target valve is in the first open / closed state, the first valve is fully closed and the second valve is fully open. When the target valve is in the second open / closed state, the first valve is fully open and the second valve is fully closed.

4. The method according to claim 3, characterized in that, The step of controlling the target valve to switch between a first open / closed state and a second open / closed state based on the status information includes: Based on the status information, determine the target switching time for the target valve to switch to the first open / closed state; Based on the target switching time and the status information, the target valve is controlled to switch between a first open / closed state and a second open / closed state.

5. The method according to claim 4, characterized in that, The step of determining the target switching time for the target valve to switch to the first open / closed state based on the status information includes: When the vehicle engine is switched to a shutdown state, the target switching time is determined based on the status information, wherein the engine speed of the vehicle engine begins to decrease when the vehicle engine is switched to a shutdown state.

6. The method according to claim 5, characterized in that, When the vehicle engine is switched to a shutdown state, determining the target switching time based on the status information includes: Upon receiving a state switching signal, the target switching time is determined based on the state information, wherein the state switching signal is used to control the vehicle engine to switch from the operating state to the shutdown state.

7. The method according to claim 6, characterized in that, The step of determining the target switching time based on the state information upon receiving a state switching signal includes: If the state switching signal is obtained, the target switching time is determined based on the state information at the time the state switching signal is obtained.

8. The method according to claim 7, characterized in that, The method further includes: When the vehicle engine is running, the switching time for the target valve to switch to the first open / closed state at the current moment is determined based on the state information of the vehicle engine at the current moment. The step of determining the target switching time based on the state information at the time the state switching signal is acquired, upon receiving the state switching signal, includes: When the state switching signal is acquired, the switching time at the time the state switching signal is acquired is determined as the target switching time.

9. The method according to claim 8, characterized in that, The status information includes engine speed. When the vehicle engine is running, determining the switching time for the target valve to switch to the first open / closed state at the current moment, based on the vehicle engine's current status information, includes: When the vehicle engine is running, the switching time for the target valve to switch to the first open / closed state is determined based on the engine speed of the vehicle engine at the current moment and the predetermined speed-time mapping data.

10. The method according to claim 9, characterized in that, The method further includes: Based on the oxygen content in the intake pipe when the target valve switches to the first open / closed state at different engine speeds, the speed-time mapping relationship data is determined.

11. The method according to claim 8, characterized in that, The step of controlling the target valve to switch between a first open / closed state and a second open / closed state based on the target switching time and the state information includes: The timer starts from the moment the state switching signal is acquired; When the timer reaches the target switching time, control the target valve to switch to the first open / closed state; Based on the status information, control the target valve to switch to the second open / closed state.

12. The method according to claim 11, characterized in that, The status information includes engine speed. When the engine switches to the shutdown state, the engine speed begins to decrease. Controlling the target valve to switch to the second open / closed state based on the status information includes: When the engine speed is zero, the target valve is controlled to switch to the second open / closed state.

13. An electronic device, characterized in that, The method includes a memory and a processor, wherein the memory stores a computer program, which, when executed by the processor, implements the method according to any one of claims 1-12.

14. A vehicle, characterized in that, The vehicle includes the electronic equipment as described in claim 13.

15. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by one or more processors, implements the method according to any one of claims 1-12.

16. A computer program product comprising a computer program / instructions, characterized in that, When the computer program / instructions are executed by the processor, they implement the method described in any one of claims 1-12.

Images