Engine control method, system and vehicle

Abstract

This application discloses an engine control method, system, and vehicle. The method involves obtaining a refueling event interval; determining an engine control strategy based on the refueling event interval, wherein the engine control strategy is a strategy for detecting vehicle operating conditions based on the vehicle operating mode and the refueling event interval to control engine startup; and starting the engine according to the engine control strategy. In this manner, a preset engine control strategy is determined based on the vehicle's different operating modes and the interval between refueling events. The vehicle's operating conditions are detected based on the engine control strategy corresponding to the current vehicle, and the engine is started based on the detection results. This allows vehicles that have not used their engines for long periods of time to consume fuel, reduces vehicle failures, and improves user experience.

Description

Technical Field

[0001] The present application relates to the field of automotive technology, and in particular to an engine control method, system and vehicle. Background Art

[0002] With the gradual tightening of emission regulations and the tightening of national subsidies for hybrid vehicles, long-range PHEV models have gradually occupied the hybrid vehicle market. The pure electric range of this type of model is ≥50km, of which 50km of pure electric range can meet the daily commuting needs of most cities. Therefore, during daily driving, users may not use fuel for a long time, or the fuel usage rate will drop significantly.

[0003] Among them, the shelf life of E0 gasoline is 3 to 6 months; the shelf life of E10 ethanol gasoline is 1-3 months. If gasoline is stored in the fuel tank for a long time, the octane will evaporate, the combustion components will decrease, or oxidation will produce gum. If the fuel is not used for a long time, it will deteriorate and affect the engine performance. For example, the fuel gum will clog the injector, and the combustion components will evaporate, causing the engine to work poorly. For this reason, when the engine is used, it will cause engine failure, reducing the user experience.

[0004] Therefore, how to flexibly control the fuel consumption of vehicles that have not used their engines for a long time is a technical problem that those skilled in the art urgently need to solve. Summary of the Invention

[0005] Based on the above problems, the present application provides an engine control method, system and vehicle, which can reduce vehicle failures and improve user experience.

[0006] To solve the above problems, the technical solutions provided in the embodiments of the present application are as follows:

[0007] A first aspect of the present application provides an engine control method, comprising:

[0008] Get the refueling event time interval;

[0009] determining an engine control strategy according to the refueling event time interval, wherein the engine control strategy is a strategy for detecting a vehicle operating condition based on a vehicle operating mode and the refueling event time interval to control engine startup;

[0010] The engine is started according to the engine control strategy.

[0011] Optionally, determining the engine control strategy according to the refueling event time interval includes:

[0012] In response to a refueling event time interval being no greater than a first time threshold, determining that the engine control strategy is a normal control strategy;

[0013] In response to a refueling event time interval being greater than a first time threshold, determining that the engine control strategy is an anti-deterioration control strategy.

[0014] Optionally, the anti-deterioration control strategy includes a first control strategy, wherein the first control strategy is a control strategy corresponding to when the refueling time interval conforms to a first preset interval and the vehicle operation mode is a hybrid power mode;

[0015] Starting the engine according to the engine control strategy includes:

[0016] In response to determining that the engine control strategy is the first control strategy, obtaining power battery power;

[0017] In response to the power battery power not being greater than a first power threshold, starting the engine;

[0018] In response to the power battery power being greater than a first power threshold and not greater than a second power threshold, obtaining a vehicle running speed and a required power;

[0019] In response to the vehicle operating speed being less than a first speed threshold and the required power being greater than a first power threshold, the engine is started.

[0020] Optionally, the anti-deterioration control strategy includes a second control strategy, the second control strategy being a control strategy corresponding to when the refueling time interval conforms to a second preset interval and the vehicle operation mode is a hybrid power mode;

[0021] Starting the engine according to the engine control strategy includes:

[0022] In response to determining that the engine control strategy is the second control strategy, obtaining power battery power;

[0023] In response to the power battery power being no greater than a third power threshold, starting the engine;

[0024] In response to the power battery power being greater than a third power threshold and not greater than a fourth power threshold, obtaining a vehicle running speed and a required power;

[0025] In response to the vehicle operating speed being less than a second speed threshold and the required power being greater than a second power threshold, the engine is started.

[0026] Optionally, the anti-deterioration control strategy includes a third control strategy, wherein the third control strategy is a control strategy corresponding to when the refueling time interval conforms to a third preset interval and the vehicle operation mode is a wading mode;

[0027] Starting the engine according to the engine control strategy includes:

[0028] In response to determining that the engine control strategy is the third control strategy, the engine is started.

[0029] Optionally, the anti-deterioration control strategy includes a fourth control strategy, which is a control strategy corresponding to when the refueling time interval conforms to a fourth preset interval, the vehicle operation mode is a wading mode, and the instrument prompts to change fuel;

[0030] Starting the engine according to the engine control strategy includes:

[0031] In response to determining that the engine control strategy is the fourth control strategy, the engine is started and prompt information is generated before each start.

[0032] Optionally, starting the engine according to the engine control strategy includes:

[0033] In response to determining that the engine control strategy is a normal control strategy, obtaining power battery power;

[0034] In response to the power battery power being no greater than a fifth power threshold, starting the engine;

[0035] In response to the power battery power being greater than a fifth power threshold and not greater than a sixth power threshold, obtaining a vehicle running speed and a required power;

[0036] In response to the vehicle operating speed being less than a third speed threshold and the required power being greater than a third power threshold, the engine is started.

[0037] Optionally, before obtaining the refueling event time interval, the method further includes:

[0038] Obtaining a data set stored in the cloud, wherein the data set includes an occurrence time of a vehicle refueling event;

[0039] The data set is processed by program calculation to obtain the time interval of the refueling event.

[0040] In a second aspect, an embodiment of the present application provides a system, including:

[0041] An information acquisition unit, used for acquiring a time interval of a refueling event;

[0042] an engine control strategy determining unit, configured to determine an engine control strategy based on the refueling event time interval, wherein the engine control strategy is a strategy for instructing to control engine startup by detecting a vehicle operating condition based on a vehicle operating mode and the refueling event time interval;

[0043] An engine starting unit is configured to start the engine according to the engine control strategy. In a third aspect, an embodiment of the present application provides a device comprising a memory and a processor, wherein the memory is configured to store instructions or codes, and the processor is configured to execute the instructions or codes so that the device performs the engine control method described in any one of the first aspects.

[0044] A third aspect of the present application provides an electronic device, comprising: a processor, a memory, and a system bus;

[0045] The processor and the memory are connected via the system bus;

[0046] The memory is used to store one or more programs, and the one or more programs include instructions. When the instructions are executed by the processor, the processor executes the engine control method according to any one of the first aspects.

[0047] In a fourth aspect, an embodiment of the present application provides a computer storage medium, in which a code is stored. When the code is executed, the device executing the code implements the engine control method described in any one of the first aspects above.

[0048] In a fifth aspect, an embodiment of the present application provides a vehicle, wherein the vehicle includes a central electronic control module, and the central electronic control module is configured to execute the engine control method described in any one of the first aspects.

[0049] Compared with the existing technology, this application has the following beneficial effects:

[0050] The engine control method provided in this application obtains a refueling event interval; determines an engine control strategy based on the refueling event interval, wherein the engine control strategy is a strategy for detecting vehicle operating conditions based on the vehicle operating mode and the refueling event interval to control engine startup; and starts the engine according to the engine control strategy. A preset engine control strategy is determined based on the vehicle's different operating modes and the interval between refueling events; the vehicle operating conditions are detected based on the engine control strategy corresponding to the current vehicle, and the engine startup is controlled based on the detection results. In this way, by determining the corresponding engine control strategy based on the vehicle's refueling event interval, vehicles that have not been used for a long time can consume fuel, reduce vehicle failures, and improve user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the technical solutions in this embodiment or the prior art, the following briefly introduces the drawings required for use in the embodiment or the prior art description. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0052] Figure 1 A flow chart of an engine control method provided in an embodiment of the present application;

[0053] Figure 2 A structural diagram of an engine control system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0054] In order to help those skilled in the art better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0055] As mentioned above, as long-range PHEVs (pure electric range ≥50km) gradually take over the hybrid vehicle market, gasoline stored in the tank for extended periods can experience octane volatilization, reducing the number of combustion components. Ethanol gasoline can also stratify due to ethanol volatilization, or oxidize to produce gum. Users may not use fuel for extended periods, or their fuel utilization rate may drop significantly. This can cause fuel to deteriorate over time, impacting engine performance. For example, gumming can clog injectors, and volatilization of combustion components can cause engine malfunctions and user complaints.

[0056] In light of this, an embodiment of the present application provides an engine control method that obtains a refueling event interval; determines an engine control strategy based on the refueling event interval, wherein the engine control strategy is a strategy for detecting vehicle operating conditions based on the vehicle operating mode and the refueling event interval to control engine startup; and starts the engine according to the engine control strategy. In this way, a preset engine control strategy is determined based on the vehicle's different operating modes and the time interval between two refueling events; the vehicle's operating conditions are detected according to the engine control strategy corresponding to the current vehicle; and the engine is controlled to start based on the detection results. This allows vehicles that have not used their engines for long periods of time to consume fuel, reduces vehicle failures, and improves user experience.

[0057] The method provided in the embodiment of the present application is executed by the engine control system, which can cooperate with the cloud to complete engine control. For example, the user's refueling time interval is monitored through cloud data, and then the cloud sends the detected time interval to the engine control system. The engine control system can determine the corresponding preset engine control strategy based on the current refueling time interval detected by the cloud and the vehicle operation mode obtained by the engine system.

[0058] The following describes an engine control method provided by this application through an embodiment. Figure 1 , Figure 1 This is a flow chart of an engine control method provided in an embodiment of the present application. The control method provided in this embodiment can be executed by an engine control system, including:

[0059] S101. Obtain the time interval between refueling events.

[0060] The interval between refueling events can be determined by reading the fuel level in the tank using a fuel level sensor. An increase in fuel level is considered a refueling event, and the interval between two refueling events is considered the fuel storage time. In actual application scenarios, this interval can be obtained from the cloud's refueling event records.

[0061] In a possible implementation, before step S101, the following steps are further included:

[0062] Step 1011: Obtain a data set stored in the cloud.

[0063] The data set includes the time when the vehicle refueling event occurred. In actual application scenarios, the engine control method can be implemented in conjunction with the Internet of Vehicles. The Internet of Vehicles system is divided into three parts: an on-board terminal, a cloud computing processing platform, and a data analysis platform. The on-board terminal collects real-time vehicle operation data, and realizes the collection, storage and transmission of all vehicle working information and static and dynamic information. The on-board terminal is composed of sensors, data collectors, and wireless transmission modules. The real-time operating conditions of the vehicle include the driver's operating behavior, power system operating parameter data, the time when the refueling event occurred, etc. The wireless transmission module is used to send the acquired data to the cloud computing processing platform, that is, to integrate the acquired data into a data set and store it in the cloud. In some possible implementation methods, the acquired vehicle information data can be processed by cloud computing to "filter and clean" the data.

[0064] The occurrence time of the vehicle refueling event in the data set can be jointly determined by the data collector and sensor of the vehicle terminal. For example, the vehicle sensor can be used to identify the oil storage status in the vehicle tank, and the data collector can be used to identify the fuel level signal. In response to the sensor or data collector obtaining an increase in the amount of fuel in the vehicle tank, it is identified that the vehicle refueling event is currently occurring.

[0065] Step 1012: Perform program calculation processing on the data set to obtain the time interval of the refueling event.

[0066] The program operation module in the cloud computing processing platform is called to perform program operation processing on the data set. For example, the time of the most recent refueling event in the data set and the current date can be obtained to calculate the time interval between refueling events.

[0067] In some possible implementations, the data analysis platform in the Internet of Vehicles system can be called to process the data in a report format for vehicle users or managers to view. When vehicle passengers call the vehicle data that has been processed in a report format, they can directly know the time interval between vehicle refueling events.

[0068] S102: Determine an engine control strategy according to the refueling event time interval.

[0069] Among them, the vehicle operation mode may include EV (pure electric mode), HEV (hybrid power mode), and wading mode.

[0070] Among them, the engine control strategy is used to indicate the strategy for detecting the vehicle operation status based on the vehicle operation mode and the refueling event time interval to control the engine start. For example, in an actual application scenario, the normal value definition threshold of the refueling event interval (i.e., the first time threshold) can be set to 120 days. The system can determine the engine control strategy corresponding to the current vehicle based on the current refueling event time interval. When the vehicle's refueling event time interval is not greater than the first time threshold, the engine control strategy is determined to be a conventional control strategy; when the refueling event time interval is greater than the first time threshold, the engine control strategy is determined to be an anti-deterioration control strategy. Among them, the anti-deterioration control strategy includes four control strategies, corresponding to different refueling time intervals and vehicle operation modes.

[0071] S103: Start the engine according to the engine control strategy.

[0072] The control strategy corresponding to the vehicle operation mode and the refueling event interval time obtained in the above steps controls the engine start according to one of the five control strategies.

[0073] In the first case, in response to determining that the engine control strategy is the first control strategy.

[0074] In actual application, if the system determines that the vehicle's operating mode is HEV hybrid mode and the refueling event interval is within a first preset interval, the system determines that the engine control strategy is the first control strategy. HEV mode generally uses pure electric power, and implements hybrid power when the battery level is low. If the refueling event interval is within the first preset interval, the vehicle's operating mode is exclusively HEV hybrid mode, and other modes such as EV pure electric mode are not used. In actual application scenarios, even if the vehicle occupants set the vehicle to other modes such as EV mode, the system will control the vehicle to automatically switch to HEV mode.

[0075] The first control strategy determines whether to start the engine based on the relationship between the battery charge level and a first charge threshold. Specifically, the first control strategy corresponds to hybrid mode and is invoked when the refueling interval falls within a first preset interval. This first control strategy includes an engine control strategy when the current power battery charge level is not greater than the first charge threshold, and an engine control strategy when the current power battery charge level is greater than the first charge threshold but not greater than a second charge threshold.

[0076] In the subsequent method steps, the power battery charge is first obtained, and then the engine is started according to the engine control strategy, including two cases, case A1 and case A2:

[0077] A1: In response to the power battery power not being greater than a first power threshold, starting the engine.

[0078] For example, the first preset interval is set to a refueling event interval greater than 120 days and not greater than 150 days, and the first power threshold is 30%. When the power battery power is less than or equal to 30%, the engine is started.

[0079] A2: In response to the power battery charge being greater than a first charge threshold and not greater than a second charge threshold, obtaining the vehicle operating speed and required power; in response to the vehicle operating speed being less than the first speed threshold and the required power being greater than the first power threshold, starting the engine.

[0080] When it is detected that the vehicle's power battery charge is greater than 30% and less than 80%, 80% here is the preset second charge threshold. The system obtains the vehicle's running speed and required power, and compares the obtained value with the preset threshold. For example, the first speed threshold is set to 40km / h, and the first power threshold is set to 20kw. When the vehicle's running speed is less than 40km / h and the required power is greater than 20kw, the engine is started.

[0081] In a second case, in response to the vehicle operating mode being the hybrid mode and the refueling event interval being in compliance with a second preset interval, the engine control strategy is determined to be the second control strategy.

[0082] In actual application, when the interval between refueling events meets the second preset interval, the vehicle operation mode only adopts the HEV hybrid mode, and does not operate other modes such as the EV pure electric mode. In actual application scenarios, even if the vehicle occupants set the vehicle to EV mode or other modes, the system will control the vehicle to automatically switch to HEV mode.

[0083] The third control strategy determines whether to start the engine based on the relationship between the battery charge level and a third charge threshold. Specifically, the second control strategy corresponds to the hybrid mode and is invoked when the refueling interval falls within a second preset interval. This second control strategy includes an engine control strategy when the current power battery charge level is not greater than the third charge threshold and an engine control strategy when the current power battery charge level is greater than the third charge threshold but not greater than a fourth charge threshold.

[0084] In the subsequent method steps, the power battery power is first obtained, and then the engine is started according to the engine control strategy, including two cases, case B1 and case B2:

[0085] B1: in response to the power battery power level being no greater than a third power level threshold, starting the engine.

[0086] For example, the second preset interval is set to a refueling event interval greater than 150 days and not greater than 180 days, and the third power threshold is 50%. When the power battery power is less than or equal to 50%, the engine is started.

[0087] B2: In response to the power battery power being greater than a third power threshold and not greater than a fourth power threshold, obtaining the vehicle operating speed and required power; in response to the vehicle operating speed being less than a second speed threshold and the required power being greater than a second power threshold, starting the engine.

[0088] When it is detected that the vehicle's power battery charge is greater than 50% and less than 80%, 80% here is the preset fourth charge threshold. The system obtains the vehicle's running speed and required power, and compares the obtained value with the preset threshold. For example, the second speed threshold is set to 40km / h, and the second power threshold is set to 10kw. When the vehicle's running speed is less than 40km / h and the required power is greater than 10kw, the engine is started.

[0089] In a third case, in response to the vehicle operating mode being the wading mode, the refueling event interval meets a third preset interval, and the engine control strategy is determined to be the third control strategy.

[0090] In actual use, the engine in an HEV can operate in direct drive, series, or parallel mode. The engine can charge the vehicle battery and drive the wheels, or it can charge the vehicle battery without driving the wheels. If the interval between refueling events falls within the third preset interval, the vehicle will only operate in wading mode. After the vehicle is powered on, the engine will be controlled to directly drive the wheels, and other modes such as EV pure electric mode or HEV hybrid mode will not be operated. In actual use scenarios, even if the vehicle occupants set the vehicle to other modes such as EV mode or HEV hybrid mode, the system will control the vehicle to automatically switch to wading mode.

[0091] The third control strategy is used to directly instruct to start the engine. For example, the third preset interval can be set to a refueling interval greater than 180 days and less than 240 days. In this case, regardless of the remaining power of the power battery, the engine is started.

[0092] In a fourth case, in response to the vehicle operating mode being the wading mode, the refueling event interval meets a fourth preset interval, and the engine control strategy is determined to be the fourth control strategy.

[0093] The fourth control strategy is used to instruct the vehicle to start the engine and generate a reminder message before each start. For example, if the fourth preset interval is set to a refueling interval greater than 240 days, the vehicle will start the engine regardless of the remaining power battery charge, and a reminder will be generated before each start. This reminder will be displayed on the vehicle instrument panel before each start.

[0094] In a fifth case, in response to the refueling event time interval being no greater than the first time threshold, the engine control strategy is determined to be a normal control strategy.

[0095] In actual application scenarios, when it is determined that the refueling event interval is not greater than the first time threshold, the engine control strategy is determined to be a conventional control strategy when the vehicle is in any vehicle operating mode. The vehicle operating mode can be EV (Electric Vehicle, pure electric), HEV (Hybrid Electric Vehicle, hybrid power), PHEV (plug-in hybrid electric vehicle), and other vehicle operating modes related to vehicle power, or can be personalized driving modes such as economic mode, sports mode, adaptive driving mode, off-road mode, and normal mode. The vehicle operating mode in the conventional control strategy can be selected independently by the vehicle occupants, or it can be a recommended mode automatically generated by the vehicle side based on the vehicle driving environment and driving data. Regarding the category and selection method of the vehicle operating mode in this case, it can be adaptively adjusted according to actual needs and is not restricted here.

[0096] The fifth scenario is when the battery charge is no greater than the normal threshold (the first time threshold). The conventional control strategy determines whether to start the engine based on the relationship between the battery charge and the fifth charge threshold. Specifically, the conventional control strategy is invoked for pure electric or hybrid mode, and when the refueling event interval is no greater than the first time threshold. This conventional control strategy includes both the engine control strategy for when the current power battery charge is no greater than the fifth charge threshold and the engine control strategy for when the current power battery charge is greater than the fifth charge threshold but no greater than the sixth charge threshold.

[0097] In the subsequent method steps, the power battery charge is first obtained, and then the engine is started according to the engine control strategy, including two cases, case C1 and case C2:

[0098] Case C1: in response to the power battery power level being not greater than a fifth power level threshold, starting the engine.

[0099] For example, if the fifth power threshold is set to 20%, the engine will be started when the power battery power is less than or equal to 20%. In actual application, after starting the engine, the engine can be used to maintain the vehicle power or charge the vehicle battery. There is no restriction on the use of the engine after starting.

[0100] Case C2: In response to the power battery power being greater than the fifth power threshold and not greater than the sixth power threshold, obtaining the vehicle running speed and required power; in response to the vehicle running speed being less than the third speed threshold and the required power being greater than the third power threshold, starting the engine.

[0101] When it is detected that the vehicle's power battery charge is greater than 20% and less than 80%, 80% here is the preset sixth charge threshold. The system obtains the vehicle's running speed and required power, and compares the obtained value with the preset threshold. For example, the third speed threshold is set to 50km / h, and the third power threshold is set to 30kw. When the vehicle's running speed is less than 50km / h and the required power is greater than 30kw, the engine is started.

[0102] Integrating the five control strategies in S102-S103, the values ​​of each power threshold, required power threshold, vehicle speed threshold, and refueling event interval time threshold can be set according to actual needs, and are not limited to the values ​​​​in the above examples. The value range can be adaptively modified.

[0103] An engine control strategy is determined based on the refueling event interval. The engine control strategy is a strategy for controlling engine startup based on the vehicle's operating mode and the refueling event interval. The engine is started according to the engine control strategy. A preset engine control strategy is determined based on the vehicle's operating mode and the interval between refueling events. The vehicle's operating status is detected based on the engine control strategy corresponding to the current vehicle, and the engine is started based on the detection result. In this way, by determining the corresponding engine control strategy based on the vehicle's refueling event interval, vehicles that have not been used for a long time can consume fuel, reduce vehicle failures, and improve user experience.

[0104] The above are some specific implementations of the engine control method provided in the embodiment of the present application. Based on this, the present application also provides a corresponding system for engine control. The system provided in the embodiment of the present application will be introduced from the perspective of functional modularization. Figure 2 A structural diagram of an engine control system provided in an embodiment of the present application.

[0105] The present application also provides an engine control system, including:

[0106] An information acquisition unit 201 is used to acquire a time interval between refueling events;

[0107] An engine control strategy determining unit 202 is configured to determine an engine control strategy based on the refueling event time interval, wherein the engine control strategy is a strategy for detecting a vehicle operating condition based on a vehicle operating mode and the refueling event time interval to control engine startup;

[0108] The engine starting unit 203 is configured to start the engine according to the engine control strategy.

[0109] An embodiment of the present application provides a device, which includes a memory and a processor, wherein the memory is used to store instructions or codes, and the processor is used to execute the instructions or codes so that the device performs any of the aforementioned engine control methods.

[0110] An embodiment of the present application provides a computer storage medium having codes stored therein. When the codes are executed, a device executing the codes implements any one of the aforementioned engine control methods.

[0111] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the systems or devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0112] It should be understood that in this application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0113] It should also be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0114] The steps of the methods or algorithms described in conjunction with the embodiments disclosed herein may be implemented directly using hardware, a software module executed by a processor, or a combination of the two. The software module may be placed in a random access memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0115] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An engine control method, characterized in that: include: Get the refueling event time interval; determining an engine control strategy according to the refueling event time interval, wherein the engine control strategy is a strategy for detecting a vehicle operating condition based on a vehicle operating mode and the refueling event time interval to control engine startup; starting the engine according to the engine control strategy; Specifically, the system determines a preset engine control strategy based on the vehicle's different operating modes and the interval between two refueling events, detects the vehicle's operating conditions based on the engine control strategy corresponding to the current vehicle, and controls the engine start based on the detection results; Determining the engine control strategy based on the refueling event time interval includes: in response to the refueling event time interval being no greater than a first time threshold, determining the engine control strategy as a conventional control strategy; in response to the refueling event time interval being greater than the first time threshold, determining the engine control strategy as an anti-deterioration control strategy; If the refueling time interval is within the first preset interval and the vehicle operation mode is the hybrid mode, the anti-deterioration control strategy is the first control strategy; Starting the engine according to the engine control strategy includes: in response to determining that the engine control strategy is the first control strategy, obtaining the power battery power; in response to the power battery power being no greater than a first power threshold, starting the engine; in response to the power battery power being greater than the first power threshold and no greater than a second power threshold, obtaining the vehicle running speed and required power; in response to the vehicle running speed being less than the first speed threshold and the required power being greater than the first power threshold, starting the engine; If the refueling time interval is within the second preset interval and the vehicle operation mode is the hybrid mode, the anti-deterioration control strategy is the second control strategy; the minimum value of the second preset interval is greater than the maximum value of the first preset interval; Starting the engine according to the engine control strategy includes: in response to determining that the engine control strategy is the second control strategy, obtaining the power battery power; in response to the power battery power being no greater than a third power threshold, starting the engine; in response to the power battery power being greater than the third power threshold and no greater than a fourth power threshold, obtaining the vehicle running speed and required power; in response to the vehicle running speed being less than the second speed threshold and the required power being greater than the second power threshold, starting the engine; the third power threshold being greater than the first power threshold; If the refueling time interval is within the third preset interval and the vehicle operation mode is the wading mode, the anti-deterioration control strategy is the third control strategy; the minimum value of the third preset interval is greater than the maximum value of the second preset interval; The starting the engine according to the engine control strategy includes: in response to determining that the engine control strategy is a third control strategy, starting the engine; If the refueling time interval is within the fourth preset interval, the vehicle operation mode is the wading mode and the instrument prompts the corresponding control strategy when changing fuel, the anti-deterioration control strategy is the fourth control strategy; the minimum value of the fourth preset interval is greater than the maximum value of the third preset interval; Starting the engine according to the engine control strategy includes: in response to determining that the engine control strategy is the fourth control strategy, starting the engine and generating prompt information before each start.

2. The method according to claim 1, characterized in that Starting the engine according to the engine control strategy includes: In response to determining that the engine control strategy is a normal control strategy, obtaining power battery power; In response to the power battery power being no greater than a fifth power threshold, starting the engine; In response to the power battery power being greater than a fifth power threshold and not greater than a sixth power threshold, obtaining a vehicle running speed and a required power; In response to the vehicle operating speed being less than a third speed threshold and the required power being greater than a third power threshold, the engine is started.

3. The method according to claim 1, characterized in that Before obtaining the refueling event time interval, the method further includes: Obtaining a data set stored in the cloud, wherein the data set includes an occurrence time of a vehicle refueling event; The data set is processed by program calculation to obtain the time interval of the refueling event.

4. An engine control system, characterized in that: include: An information acquisition unit, used to acquire a time interval of a refueling event; an engine control strategy determining unit, configured to determine an engine control strategy based on the refueling event time interval, wherein the engine control strategy is a strategy for instructing to control engine startup by detecting a vehicle operating condition based on a vehicle operating mode and the refueling event time interval; an engine starting unit, configured to start the engine according to the engine control strategy; Specifically, the system determines a preset engine control strategy based on the vehicle's different operating modes and the interval between two refueling events, detects the vehicle's operating conditions based on the engine control strategy corresponding to the current vehicle, and controls the engine start based on the detection results; Determining the engine control strategy based on the refueling event time interval includes: in response to the refueling event time interval being no greater than a first time threshold, determining the engine control strategy as a conventional control strategy; in response to the refueling event time interval being greater than the first time threshold, determining the engine control strategy as an anti-deterioration control strategy; If the refueling time interval is within the first preset interval and the vehicle operation mode is the hybrid mode, the anti-deterioration control strategy is the first control strategy; Starting the engine according to the engine control strategy includes: in response to determining that the engine control strategy is the first control strategy, obtaining the power battery power; in response to the power battery power being no greater than a first power threshold, starting the engine; in response to the power battery power being greater than the first power threshold and no greater than a second power threshold, obtaining the vehicle running speed and required power; in response to the vehicle running speed being less than the first speed threshold and the required power being greater than the first power threshold, starting the engine; If the refueling time interval is within the second preset interval and the vehicle operation mode is the hybrid mode, the anti-deterioration control strategy is the second control strategy; the minimum value of the second preset interval is greater than the maximum value of the first preset interval; Starting the engine according to the engine control strategy includes: in response to determining that the engine control strategy is the second control strategy, obtaining the power battery power; in response to the power battery power being no greater than a third power threshold, starting the engine; in response to the power battery power being greater than the third power threshold and no greater than a fourth power threshold, obtaining the vehicle running speed and required power; in response to the vehicle running speed being less than the second speed threshold and the required power being greater than the second power threshold, starting the engine; the third power threshold being greater than the first power threshold; If the refueling time interval is within the third preset interval and the vehicle operation mode is the wading mode, the anti-deterioration control strategy is the third control strategy; the minimum value of the third preset interval is greater than the maximum value of the second preset interval; The starting the engine according to the engine control strategy includes: in response to determining that the engine control strategy is a third control strategy, starting the engine; If the refueling time interval is within the fourth preset interval, the vehicle operation mode is the wading mode and the instrument prompts the corresponding control strategy when changing fuel, the anti-deterioration control strategy is the fourth control strategy; the minimum value of the fourth preset interval is greater than the maximum value of the third preset interval; Starting the engine according to the engine control strategy includes: in response to determining that the engine control strategy is the fourth control strategy, starting the engine and generating prompt information before each start.

5. A vehicle, characterized in that: The vehicle includes a central electronic control module, which is used to execute the engine control method according to any one of claims 1 to 3.

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