Engine early warning method and device, electronic equipment and vehicle

Abstract

The invention relates to an engine early warning method and device, electronic equipment and a vehicle. The engine early warning method comprises the steps that the excess air coefficient of an engine in the running state within the first preset duration is obtained; detecting whether the frequency of the excess air coefficient exceeding the preset range in the first preset duration reaches a first preset frequency or not; and if the frequency that the excess air coefficient exceeds the preset range reaches the first preset frequency, first early warning information is sent out. Therefore, the abnormal condition of the engine in the operation state can be timely and accurately found through the operation data of the engine, and timely early warning is realized by sending out the first early warning information, so that potential risks and further deterioration of the engine into serious faults are avoided, the safety of the engine is ensured, and meanwhile, the safety of the engine is improved. And assistance is provided for improving the safety and the market competitiveness of the alcohol-hydrogen electric automobile.

Description

Technical Field

[0001] The present application relates to the field of vehicle control technology, and in particular to an engine early warning method, device, electronic equipment and vehicle. Background Art

[0002] With the increasing maturity of alcohol-hydrogen technology and the low cost advantage of alcohol-hydrogen fuel, alcohol-hydrogen electric vehicles have gradually become a new growth point in the vehicle market. Among them, the engine is the core component to ensure the normal operation of alcohol-hydrogen electric vehicles. How to achieve its fault warning and avoid potential risks is of great significance to improving the safety and market competitiveness of alcohol-hydrogen electric vehicles. Summary of the invention

[0003] In view of this, the present application is dedicated to providing an engine warning method, device, electronic equipment and vehicle, which can effectively realize engine fault warning.

[0004] A first aspect of the present application provides an engine early warning method, comprising:

[0005] Obtaining an excess air coefficient within a first preset time period when the engine is in a running state;

[0006] Detecting whether the frequency of the excess air coefficient exceeding the preset range within the first preset time period reaches a first preset frequency;

[0007] If the frequency that the excess air coefficient exceeds the preset range reaches a first preset frequency, a first warning message is issued.

[0008] Optionally, obtaining the excess air coefficient within a first preset time period when the engine is in a running state includes:

[0009] Acquiring an engine speed, and detecting whether the engine speed is within a preset speed range;

[0010] If the engine speed is within a preset speed range, it is determined that the engine is in a running state, and the excess air coefficient of the engine in the running state within a first preset time period is obtained.

[0011] Optionally, the detecting whether the frequency of the excess air coefficient exceeding a preset range within the first preset time period reaches a first preset frequency includes:

[0012] Detecting whether the number of abnormal excess air coefficient groups reaches a first preset number within the first preset time; the excess air coefficient group is obtained by dividing the excess air coefficient within the first preset time, and the excess air coefficient within each third preset time is a group of the excess air coefficient groups; the abnormal excess air coefficient group includes: an excess air coefficient group whose frequency of excess air coefficient continuously exceeding the preset range reaches a second preset frequency; the product of the first preset number and the second preset frequency is equal to the first preset frequency;

[0013] If the number of abnormal excess air coefficient groups reaches a first preset number within the first preset time period, it is determined that the frequency of the excess air coefficient exceeding the preset range reaches the first preset frequency.

[0014] Optionally, it also includes:

[0015] Acquiring a coolant temperature within a second preset time period when the engine is in a running state;

[0016] Detecting whether the frequency of the coolant temperature exceeding the preset temperature range within the second preset time period reaches a third preset frequency;

[0017] If the frequency of the coolant temperature exceeding the preset temperature range reaches a third preset frequency, a second warning message is issued.

[0018] Optionally, the detecting whether the frequency of the coolant temperature exceeding the preset temperature range within the second preset time reaches a third preset frequency includes:

[0019] Detecting whether the number of abnormal coolant temperature groups reaches a second preset number within the second preset time; the coolant temperature groups are the coolant temperatures within the second preset time divided into a group of coolant temperature groups, and the coolant temperatures within each fourth preset time are a group of the coolant temperature groups; the abnormal coolant temperature groups include: coolant temperature groups in which the frequency of the coolant temperature continuously exceeding the preset temperature range reaches a fourth preset frequency; the product of the second preset number and the fourth preset frequency is equal to the third preset frequency;

[0020] If the number of abnormal coolant temperature groups reaches a second preset number within the second preset time period, it is determined that the frequency of the coolant temperature exceeding the preset temperature range reaches a third preset frequency.

[0021] Optionally, the first warning information includes a warning report;

[0022] The issuing of the first warning information comprises:

[0023] Acquiring vehicle information corresponding to the engine;

[0024] The warning report is generated based on the vehicle information and the excess air coefficient within the first preset time period, and the warning report is issued based on a preset sending form.

[0025] Optionally, the preset range includes [0.95, 1.1].

[0026] A second aspect of the present application provides an engine warning device, comprising:

[0027] An acquisition module, used for acquiring an excess air coefficient within a first preset time period when the engine is in a running state;

[0028] a detection module, configured to detect whether the frequency of the excess air coefficient exceeding a preset range within the first preset time period reaches a first preset frequency;

[0029] The early warning module is used to issue a first early warning message if the frequency of the excess air coefficient exceeding the preset range reaches a first preset frequency.

[0030] A third aspect of the present application provides an electronic device, including:

[0031] A processor, and a memory connected to the processor;

[0032] The memory is used to store computer programs;

[0033] The processor is used to call and execute the computer program in the memory to perform the engine early warning method as described in the first aspect of the present application.

[0034] A fourth aspect of the present application provides a vehicle, comprising the electronic device as described in the third aspect of the present application.

[0035] In the scheme of the present application, the excess air coefficient within the first preset time when the engine is in operation is first obtained to provide a detection basis for detecting whether there is an abnormality in the engine operation state; then the frequency of the excess air coefficient exceeding the preset range within the first preset time is detected to see whether it reaches the first preset frequency; if the frequency of the excess air coefficient exceeding the preset range reaches the first preset frequency, it indicates that the abnormality of the excess air coefficient is caused by the abnormality in the engine operation state, and a first warning message can be issued. In this way, the abnormality in the engine operation state can be discovered in a timely and accurate manner through the engine operation data, and timely warning can be achieved by issuing the first warning message, thereby avoiding potential risks and further deterioration of the engine into a serious fault, ensuring the safety of the engine, and at the same time, providing assistance to improve the safety and market competitiveness of alcohol-hydrogen electric vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 paying creative work.

[0037] Figure 1 It is a flow chart of an engine early warning method provided by an embodiment of the present application.

[0038] Figure 2 It is a flow chart of an engine early warning method provided in another embodiment of the present application.

[0039] Figure 3 It is a structural schematic diagram of an engine warning device provided in one embodiment of the present application.

[0040] Figure 4 It is a structural schematic diagram of an electronic device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0042] The mission of promoting green and low-carbon technologies, green products, and building a green and low-carbon transformation of the industry defines methanol vehicles as green products. Affected by factors such as the international environment and the domestic energy structure, methanol-hydrogen has become an important part of the country's energy diversification and energy strategy. With the increasing maturity of methanol-hydrogen technology and the low-cost advantage of methanol-hydrogen fuel, methanol-hydrogen electric vehicles have gradually become a new growth point in the vehicle market.

[0043] Taking alcohol-hydrogen electric light trucks as an example, the current satisfaction rate of alcohol-hydrogen electric light trucks in supermarket distribution and urban cold chain transportation scenarios is relatively high. Through market big data statistical analysis, the operating mileage of alcohol-hydrogen electric light trucks is gradually increasing, which also reflects the gradual increase in the market share of alcohol-hydrogen electric light trucks.

[0044] The methanol engine is the core component to ensure the normal operation of alcohol-hydrogen electric vehicles. At present, in order to ensure the normal operation of the methanol engine and at the same time monitor the methanol and air concentrations in the cylinder, so as to provide a basis for timely adjustment of the injection amount and correction of the air coefficient, the gas in the cylinder is usually monitored through a zirconium dioxide heated oxygen sensor.

[0045] The inventors have found that a typical failure of a methanol engine is cylinder scuffing, which is mainly caused by engine overheating, cylinder sealing and loss of lubrication function, etc. Cylinder scuffing is a serious failure of a methanol engine, which will cause the methanol-hydrogen electric vehicle to be unable to drive normally. In severe cases, cylinder boring or engine replacement is even required, which not only brings great inconvenience to users, but also causes great losses.

[0046] Therefore, how to achieve engine failure warning and avoid potential risks is an urgent problem to be solved.

[0047] To this end, an embodiment of the present application provides an engine early warning method, such as Figure 1 As shown, the engine warning method may at least include the following steps:

[0048] S101, obtaining an excess air coefficient within a first preset time period when the engine is in a running state.

[0049] For alcohol-hydrogen electric vehicles, the core parameters during driving include: vehicle speed, atmospheric pressure, engine net output torque, friction torque, engine speed, engine fuel flow, three-way catalytic converter upstream oxygen sensor output value, three-way catalytic converter downstream oxygen sensor output value, intake volume, engine coolant temperature, three-way catalytic converter temperature sensor output value, positioning status, longitude, latitude, accumulated mileage, etc. The inventors found through statistics of the above data on cylinder scuffing failures in alcohol-hydrogen electric vehicles in the market that cylinder scuffing failures are accompanied by a long period of high excess air coefficient, that is, when cylinder scuffing failures occur, the engine is in a state of insufficient fuel injection for a long time. Therefore, the excess air coefficient can be used as the main associated parameter to determine whether there is a risk of cylinder scuffing failure.

[0050] The specific value of the first preset time length can be set according to actual needs and is not specifically limited here. For example, the first preset time length can be 1 hour, and the excess air coefficient within the first preset time length refers to all excess air coefficients measured within 1 hour when the engine is running.

[0051] Specifically, obtaining the excess air coefficient within the first preset time when the engine is in the running state may be to obtain the excess air coefficient within the first preset time when the engine of the target vehicle is in the running state from the historical data obtained in advance for the target vehicle. For example, if the first preset time is 2 hours and the target vehicle is vehicle A, the historical data of vehicle A may be obtained first. The historical data records the core parameters of vehicle A for a long period of time. When analyzing vehicle A, all excess air coefficients within two hours when the engine is in the running state may be obtained from the historical data, thereby providing a basis for determining whether the engine has a risk of failure.

[0052] Alternatively, the excess air coefficient within the first preset time period when the engine is in operation can be obtained, or the excess air coefficient within the first preset time period when the engine of the target vehicle is in operation can be obtained in real time. For example, if the first preset time period is 2 hours and the target vehicle is vehicle A, the excess air coefficient of vehicle A can be obtained in real time when the engine of the vehicle is in operation. When the obtained time period meets 2 hours, the excess air coefficient within 2 hours when the engine is in operation is obtained. In this way, a basis can be provided for real-time judgment of whether there is a risk of engine failure.

[0053] S102, detecting whether the frequency of the excess air coefficient exceeding a preset range within a first preset time period reaches a first preset frequency.

[0054] The preset range is used to characterize the normal value range of the excess air coefficient. If the excess air coefficient exceeds the preset range, that is, the excess air coefficient is not within the normal value range, it can be regarded as an abnormality. Accordingly, each time an excess air coefficient is detected to be beyond the preset range, the frequency of the excess air coefficient exceeding the preset range is recorded as one time.

[0055] During implementation, both the preset range and the first preset frequency can be set according to actual needs.

[0056] Detecting whether the frequency of the excess air coefficient exceeding the preset range within the first preset time reaches the first preset frequency can be regarded as detecting whether the frequency of abnormalities in the excess air coefficient within the first preset time reaches the first preset frequency. If the frequency of the excess air coefficient exceeding the preset range reaches the first preset range, it means that there are too many abnormalities in the excess air coefficient within the first preset time, and there is a risk of engine failure, and the subsequent step S103 can be continued; if the frequency of multiple air coefficients exceeding the preset range does not reach the first preset range, it means that there are not too many abnormalities in the first preset time, and there is no risk of engine failure.

[0057] In actual application, the preset range may include [0.95, 1], the first preset time may be 1 hour, and the preset frequency may be 120 times. When it is detected that the frequency of the excess air coefficient exceeding [0.95, 1] ​​reaches 120 times within 1 hour, continue to execute the following step S103.

[0058] Of course, the embodiments of the present application are only explained by taking the preset range including [0.95, 1] ​​as an example, but the present application is not limited to this. In some other embodiments, the preset range may be other ranges, and it is only necessary to ensure that the excess air coefficient is a normal value within the range.

[0059] S103. Issue a first warning message.

[0060] The first warning information is used to remind users that there is a risk of engine failure and that timely maintenance is required, thereby helping users avoid engine failure and providing a guarantee for the safe operation of the engine.

[0061] In this embodiment, the excess air coefficient within the first preset time period when the engine is in operation is first obtained to provide a detection basis for detecting whether there is an abnormality in the engine operation state; then, it is detected whether the frequency of the excess air coefficient exceeding the preset range within the first preset time period reaches the first preset frequency; if the frequency of the excess air coefficient exceeding the preset range reaches the first preset frequency, it indicates that the abnormality of the excess air coefficient is caused by the abnormality of the engine operation state, and a first warning message can be issued. In this way, the abnormality in the engine operation state can be discovered in a timely and accurate manner through the engine operation data, and timely warning can be achieved by issuing the first warning message, thereby avoiding potential risks and further deterioration of the engine into a serious fault, ensuring the safety of the engine, and at the same time, providing assistance to improve the safety and market competitiveness of alcohol-hydrogen electric vehicles.

[0062] In some embodiments, obtaining the excess air coefficient within a first preset time period when the engine is in a running state may specifically include: obtaining the engine speed, and detecting whether the engine speed is within a preset speed range; if the engine speed is within the preset speed range, determining that the engine is in a running state, and obtaining the excess air coefficient within a first preset time period when the engine is in a running state.

[0063] Among them, the preset speed range can be set according to actual needs. It only needs to ensure that the engine is in a running state when the engine speed is within the preset speed range.

[0064] For example, the preset speed range may include [1850, 3750]. After obtaining the engine speed, it can be detected whether the engine speed is within [1850, 3750]. If the engine speed is within [1850, 3750], it means that the engine is in operation, that is, the vehicle equipped with the engine is in motion; if the engine speed is lower than [1850, 3750], it means that the engine is not in operation.

[0065] In some other embodiments, the above-mentioned acquisition of the excess air coefficient within a first preset time period when the engine is in the running state may also include: acquiring the coolant temperature of the engine, and detecting whether the coolant temperature is within a preset temperature range; if the engine temperature is within the preset temperature range, determining that the engine is in the running state, and acquiring the excess air coefficient within the first preset time period when the engine is in the running state.

[0066] In some embodiments, in order to improve the accuracy of the early warning, the above-mentioned detection of whether the frequency of the excess air coefficient exceeding the preset range within the first preset time reaches the first preset frequency can specifically include: detecting whether the number of abnormal excess air coefficient groups reaches the first preset number within the first preset time; the excess air coefficient group is to divide the excess air coefficient within the first preset time, and each excess air coefficient within the third preset time is a group of excess air coefficient groups; the abnormal excess air coefficient group includes: the excess air coefficient group whose frequency of continuously exceeding the preset range reaches the second preset frequency; the product of the first preset number and the second preset frequency is equal to the first preset frequency; if within the first preset time, the number of abnormal excess air coefficient groups reaches the first preset number, it is determined that the frequency of the excess air coefficient exceeding the preset range reaches the first preset frequency.

[0067] Among them, the first preset number, the third preset duration, and the second preset frequency can all be set according to actual needs and are not specifically limited here.

[0068] For example, the first preset time is 1 hour, the third preset time is 10 seconds, the second preset frequency is 5 times, and the first preset number is 120. Since the excess air coefficient group includes the excess air coefficients within the third preset time, that is, the excess air coefficient group is all the excess air coefficients detected within 10 seconds, the first preset time is 1 hour, and 1 hour includes 3600 seconds, that is, 360 groups of excess air coefficient groups are included. Among the 360 ​​groups of excess air coefficient groups, if 120 or more abnormal excess air coefficient groups are detected, it means that within the first preset time, the number of abnormal excess air coefficient groups has reached the first preset number, and it is determined that the frequency of the excess air coefficient exceeding the preset range has reached the first preset frequency.

[0069] By setting excess air coefficient groups and determining that the engine is at risk of failure when the number of abnormal excess air coefficient groups reaches a first preset number, it is possible to effectively avoid warning errors caused by short-term or occasional deviations of the excess air coefficient from the normal value, effectively improve the accuracy of engine warnings, and lay the foundation for ensuring the normal operation of the engine.

[0070] In some embodiments, Figure 2 As shown, the engine early warning method may also include the following steps:

[0071] S201, obtaining the coolant temperature within a second preset time period when the engine is in a running state.

[0072] The second preset duration may be the same as the first preset duration, or may be different from the first preset duration. Specifically, it may be set according to actual needs and is not specifically limited here.

[0073] For example, if the second preset time period is 1 hour, the coolant temperature within 1 hour when the engine is in the running state can be obtained.

[0074] S202: Detect whether the frequency of the coolant temperature exceeding the preset temperature range within the second preset time period reaches a third preset frequency.

[0075] The preset temperature range is used to characterize the normal value range of the coolant temperature. If the coolant temperature exceeds the preset temperature range, that is, the coolant temperature is not within the normal value range, it can be regarded as an abnormality. Correspondingly, if no coolant temperature is detected to exceed the preset temperature range, the frequency of the coolant temperature exceeding the preset temperature range is one time.

[0076] During implementation, the preset temperature range and the third preset frequency can be set according to actual needs, and are not specifically limited here. For example, the preset temperature range is less than or equal to 110°C.

[0077] Detecting whether the frequency of the coolant temperature exceeding the preset temperature range within the second preset time reaches the third preset frequency can be regarded as detecting whether the frequency of the coolant temperature abnormalities within the second preset time reaches the second preset frequency, thereby providing a basis for detecting whether the coolant temperature brings thermal risk.

[0078] If the frequency that the coolant temperature exceeds the preset temperature range within the second preset time reaches the third preset frequency, it means that too many temperature abnormalities have occurred within the second preset time, and step S203 continues to be executed; if the frequency that the coolant temperature exceeds the preset temperature range within the second preset time does not reach the third preset frequency, it means that not too many temperature abnormalities have occurred within the second preset time, and there is no thermal risk in the engine.

[0079] S203: Issue a second warning message.

[0080] The second warning information is used to remind the user that the engine has a thermal risk and needs timely maintenance, thereby helping the user avoid engine failure.

[0081] In some embodiments, in order to further improve the accuracy of the early warning, when detecting whether the frequency of the coolant temperature exceeding the preset temperature range within the second preset time reaches the third preset frequency, it can be detected whether the number of abnormal coolant temperature groups reaches the second preset number within the second preset time; the coolant temperature group is the coolant temperature within the second preset time divided, and the coolant temperature within each fourth preset time is a group of coolant temperature groups; the abnormal coolant temperature group includes: the coolant temperature group whose frequency of continuously exceeding the preset temperature range reaches the fourth preset frequency; the product of the second preset number and the fourth preset frequency is equal to the third preset frequency; if within the second preset time, the number of abnormal coolant temperature groups reaches the second preset number, it is determined that the frequency of the coolant temperature exceeding the preset temperature range reaches the third preset frequency.

[0082] Among them, the second preset number, the fourth preset duration and the fourth preset frequency can all be set according to actual needs and are not specifically limited here.

[0083] Specifically, the second preset number may be the same as the first preset number, the fourth preset duration may be the same as the third preset duration, and the fourth preset frequency may be the same as the second preset frequency.

[0084] For example, the second preset time is 1 hour, the fourth preset time is 10 seconds, the fourth preset frequency is 5 times, and the second preset number is 120. Since the coolant temperature group includes the coolant temperature within the fourth preset time, that is, the coolant temperature group is all coolant temperatures detected within 10 seconds, the first preset time is 1 hour, and 1 hour includes 3600 seconds, that is, 360 coolant temperature groups. Among the 360 ​​coolant temperature groups, if 120 or more abnormal coolant temperature groups are detected, it means that within the second preset time, the number of abnormal coolant temperature groups has reached the second preset number, and it is determined that the frequency of the coolant temperature exceeding the preset temperature range has reached the third preset frequency.

[0085] By setting coolant temperature groups and determining that the engine has thermal risk when the number of abnormal coolant temperature groups reaches a second preset number, it is possible to effectively avoid warning errors caused by short-term or occasional deviations of the coolant temperature from normal values, effectively improving the accuracy of engine warnings and laying the foundation for ensuring the normal operation of the engine.

[0086] In some implementations, the first warning information may include a warning report.

[0087] Accordingly, when the first warning information is issued, the vehicle information corresponding to the engine can be obtained first; then, based on the vehicle information and the excess air coefficient within the first preset time period, a warning report is generated, and the warning report is issued based on the preset sending form.

[0088] Specifically, the vehicle information may include license plate number, vehicle model and other information.

[0089] When generating a warning report based on vehicle information and the excess air coefficient within a first preset time period, a graphical warning report can be generated. The report can display the vehicle information, the excess air coefficient within the first preset time period, the abnormal excess air coefficient groups it contains, and the report conclusions in the form of a graph, thereby facilitating user viewing and processing.

[0090] The preset sending form may include email, pop-up window or short message notification.

[0091] Likewise, the second warning information may include a second warning report.

[0092] Correspondingly, when the second warning information is issued, a second warning report can be generated based on the vehicle information and the coolant temperature of the second preset time period, and the second warning report can be issued based on the preset sending form, so as to facilitate user viewing and processing.

[0093] In some implementations, the engine warning method may further include: in response to a warning detection instruction for the engine, executing step S101. In this way, the user can issue a warning detection instruction according to actual needs to improve the system response speed.

[0094] As another optional implementation of the disclosure of this application, the embodiment of this application also provides an engine warning device, such as Figure 3 As shown, the engine warning device may include at least: an acquisition module 301, used to obtain the excess air coefficient within a first preset time period when the engine is in a running state; a detection module 302, used to detect whether the frequency of the excess air coefficient exceeding the preset range within the first preset time period reaches the first preset frequency; and a warning module 303, used to issue a first warning message if the frequency of the excess air coefficient exceeding the preset range reaches the first preset frequency.

[0095] Optionally, the acquisition module 301 may specifically include: acquiring the engine speed and detecting whether the engine speed is within a preset speed range; if the engine speed is within the preset speed range, determining that the engine is in a running state, and acquiring the excess air coefficient within a first preset time period when the engine is in the running state.

[0096] Optionally, the detection module 302 can be specifically used to: detect whether the number of abnormal excess air coefficient groups reaches a first preset number within a first preset time length; the excess air coefficient group is to divide the excess air coefficient within the first preset time length, and the excess air coefficient within each third preset time length is a group of excess air coefficient groups; the abnormal excess air coefficient groups include: excess air coefficient groups whose frequency of excess air coefficient continuously exceeding the preset range reaches a second preset frequency; the product of the first preset number and the second preset frequency is equal to the first preset frequency; if within the first preset time length, the number of abnormal excess air coefficient groups reaches the first preset number, it is determined that the frequency of excess air coefficient exceeding the preset range reaches the first preset frequency.

[0097] Optionally, the acquisition module 301 can also be used to: obtain the coolant temperature within a second preset time period when the engine is in operation; correspondingly, the detection module 302 can also be used to: detect whether the frequency of the coolant temperature exceeding the preset temperature range within the second preset time period reaches a third preset frequency; the early warning module 303 can also be used to: if the frequency of the coolant temperature exceeding the preset temperature range reaches a third preset frequency, then issue a second early warning message.

[0098] Optionally, when detecting whether the frequency of the coolant temperature exceeding the preset temperature range within the second preset time reaches a third preset frequency, the detection module 302 can be specifically used to: detect whether the number of abnormal coolant temperature groups reaches a second preset number within the second preset time; the coolant temperature group is the coolant temperature within the second preset time divided, and the coolant temperature within each fourth preset time is a group of coolant temperature groups; the abnormal coolant temperature group includes: the coolant temperature group whose frequency of continuously exceeding the preset temperature range reaches a fourth preset frequency; the product of the second preset number and the fourth preset frequency is equal to the third preset frequency; if within the second preset time, the number of abnormal coolant temperature groups reaches the second preset number, it is determined that the frequency of the coolant temperature exceeding the preset temperature range reaches the third preset frequency.

[0099] Optionally, the first warning information includes a warning report; when the first warning information is issued, the warning module 303 can be specifically used to: obtain vehicle information corresponding to the engine; generate a warning report based on the vehicle information and the excess air coefficient within a first preset time period, and issue a warning report based on a preset sending format.

[0100] Optionally, the preset range includes [0.95, 1.1].

[0101] The specific implementation method of the engine warning device provided in the embodiment of the present application can refer to the implementation method of the engine warning method described in any of the above embodiments, which will not be repeated here.

[0102] As another optional implementation of the content disclosed in this application, an embodiment of this application further provides an electronic device, such as Figure 4 As shown, the electronic device may include: a memory 401 and a processor 402; wherein the memory 401 is connected to the processor 402 and is used to store programs; the processor 402 is used to implement the engine warning method disclosed in any of the above-mentioned embodiments by running the program stored in the memory 401.

[0103] Specifically, the electronic device may further include: a bus, a communication interface 403 , an input device 404 and an output device 405 .

[0104] The processor 402, the memory 401, the communication interface 403, the input device 404 and the output device 405 are connected to each other via a bus.

[0105] A bus may include a pathway that transfers information between components of a computer system.

[0106] Processor 402 may be a general-purpose processor, such as a general-purpose central processing unit (CPU), a microprocessor, etc., or an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present application. It may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

[0107] The processor 402 may include a main processor, and may also include a baseband chip, a modem, and the like.

[0108] The memory 401 stores a program for executing the technical solution of the present application, and may also store an operating system and other key services. Specifically, the program may include a program code, and the program code includes computer operation instructions. More specifically, the memory 401 may include a read-only memory (ROM), other types of static storage devices that can store static information and instructions, a random access memory (RAM), other types of dynamic storage devices that can store information and instructions, a disk storage, a flash, and the like.

[0109] The input device 404 may include a device for receiving data and information input by a user, such as a keyboard, a mouse, a camera, a scanner, a light pen, a voice input device, a touch screen, a pedometer, or a gravity sensor.

[0110] Output device 405 may include a device that allows information to be output to a user, such as a display screen, a printer, a speaker, etc.

[0111] The communication interface 403 may include any transceiver or the like to communicate with other devices or communication networks, such as Ethernet, Radio Access Network (RAN), Wireless Local Area Network (WLAN), etc.

[0112] The processor 402 executes the program stored in the memory 401 and calls other devices, which can be used to implement each step of the engine early warning method provided in the above-mentioned embodiment of the present application.

[0113] An embodiment of the present application also provides a vehicle, which includes the electronic device as described in any of the above embodiments.

[0114] When implemented, the vehicle may include an alcohol-hydrogen electric light truck.

[0115] An embodiment of the present application further provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a computer, the computer executes the engine warning method in any of the above embodiments.

[0116] An embodiment of the present application also provides a computer program product comprising instructions, which, when executed by a computer, enables the computer to execute the engine warning method described in any of the above embodiments.

[0117] It should be understood that the specific examples herein are only intended to help those skilled in the art to better understand the embodiments of the present specification, rather than to limit the scope of the present invention.

[0118] It can be understood that in the various implementations of this specification, the size of the sequence number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the implementation methods of this specification.

[0119] It can be understood that the various embodiments described in this specification can be implemented individually or in combination, and the embodiments of this specification are not limited to this.

[0120] Unless otherwise specified, all technical and scientific terms used in the embodiments of this specification have the same meaning as those generally understood by those skilled in the art of the technical field of this specification. The terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the scope of this specification. The term "and / or" used in this specification includes any and all combinations of one or more related listed items. The singular forms of "a", "above", and "the" used in the embodiments of this specification and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0121] It can be understood that the processor of the embodiment of this specification can be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method implementation can be completed by the hardware integrated logic circuit or software instructions in the processor. The above processor can be a general processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiment of this specification can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in the embodiment of this specification can be directly embodied as a hardware decoding processor to perform, or the hardware and software modules in the decoding processor are combined and executed. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0122] It is understood that the memory in the embodiments of this specification may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (programmable ROM, PROM), an erasable programmable read-only memory (erasablePROM, EPROM), an electrically erasable programmable read-only memory (EEPROM) or a flash memory. The volatile memory may be a random access memory (RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0123] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this specification.

[0124] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method implementation methods and will not be repeated here.

[0125] In the several embodiments provided in this specification, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device implementation described above is only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0126] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0127] In addition, each functional unit in each embodiment of the present specification may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0128] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this specification, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of this specification. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, etc., various media that can store program codes.

[0129] The above is only a specific implementation of this specification, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in this specification, which should be included in the protection scope of this specification. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An engine early warning method, characterized in that: include: Obtaining an excess air coefficient within a first preset time period when the engine is in a running state; Detecting whether the frequency of the excess air coefficient exceeding a preset range within the first preset time period reaches a first preset frequency; If the frequency that the excess air coefficient exceeds the preset range reaches a first preset frequency, a first warning message is issued.

2. The method according to claim 1, characterized in that: The step of obtaining an excess air coefficient within a first preset time period when the engine is in a running state includes: Acquiring an engine speed, and detecting whether the engine speed is within a preset speed range; If the engine speed is within a preset speed range, it is determined that the engine is in a running state, and the excess air coefficient of the engine in the running state within a first preset time period is obtained.

3. The method according to claim 1, characterized in that The detecting whether the frequency of the excess air coefficient exceeding the preset range within the first preset time period reaches a first preset frequency includes: Detecting whether the number of abnormal excess air coefficient groups reaches a first preset number within the first preset time; the excess air coefficient group is obtained by dividing the excess air coefficient within the first preset time, and the excess air coefficient within each third preset time is a group of the excess air coefficient groups; the abnormal excess air coefficient group includes: an excess air coefficient group whose frequency of excess air coefficient continuously exceeding the preset range reaches a second preset frequency; the product of the first preset number and the second preset frequency is equal to the first preset frequency; If the number of abnormal excess air coefficient groups reaches a first preset number within the first preset time period, it is determined that the frequency of the excess air coefficient exceeding the preset range reaches the first preset frequency.

4. The method according to claim 1, characterized in that: Also includes: Acquiring a coolant temperature within a second preset time period when the engine is in a running state; Detecting whether the frequency of the coolant temperature exceeding the preset temperature range within the second preset time period reaches a third preset frequency; If the frequency of the coolant temperature exceeding the preset temperature range reaches a third preset frequency, a second warning message is issued.

5. The method according to claim 4, characterized in that The detecting whether the frequency of the coolant temperature exceeding the preset temperature range within the second preset time period reaches a third preset frequency includes: Detecting whether the number of abnormal coolant temperature groups reaches a second preset number within the second preset time; the coolant temperature groups are the coolant temperatures within the second preset time divided into a group of coolant temperature groups, and the coolant temperatures within each fourth preset time are a group of the coolant temperature groups; the abnormal coolant temperature groups include: coolant temperature groups in which the frequency of the coolant temperature continuously exceeding the preset temperature range reaches a fourth preset frequency; the product of the second preset number and the fourth preset frequency is equal to the third preset frequency; If the number of abnormal coolant temperature groups reaches a second preset number within the second preset time period, it is determined that the frequency of the coolant temperature exceeding the preset temperature range reaches a third preset frequency.

6. The method according to claim 1, characterized in that The first warning information includes a warning report; The issuing of the first warning information comprises: Acquiring vehicle information corresponding to the engine; The warning report is generated based on the vehicle information and the excess air coefficient within the first preset time period, and the warning report is issued based on a preset sending form.

7. The method according to claim 1, characterized in that The preset range includes [0.95, 1.1].

8. An engine warning device, characterized in that: include: An acquisition module, used for acquiring an excess air coefficient within a first preset time period when the engine is in a running state; a detection module, configured to detect whether the frequency of the excess air coefficient exceeding a preset range within the first preset time period reaches a first preset frequency; The early warning module is used to issue a first early warning message if the frequency of the excess air coefficient exceeding the preset range reaches a first preset frequency.

9. An electronic device, characterized in that: include: A processor, and a memory connected to the processor; The memory is used to store computer programs; The processor is used to call and execute the computer program in the memory to perform the engine early warning method as described in any one of claims 1-7.

10. A vehicle, characterized in that: Comprising the electronic device as claimed in claim 9.

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