Engine power shortage warning method, device, equipment and computer readable medium

Abstract

This application provides a method, device, equipment, and computer-readable medium for early warning of insufficient engine power. The method includes: acquiring vehicle network data, which includes at least engine intake pressure data, torque limit status data, throttle opening data, and rail pressure deviation data; determining whether any one of the intake pressure data, torque limit status data, throttle opening data, and rail pressure deviation data meets a corresponding target anomaly condition; and if the target anomaly condition is met, issuing an engine power insufficient warning, wherein the target anomaly conditions include intake pressure anomaly conditions, torque limit status anomaly conditions, throttle anomaly conditions, and rail pressure deviation conditions. Therefore, this application can directly utilize remotely acquired vehicle network data to achieve early warning of insufficient engine power, avoiding the use of highly complex algorithms and achieving a simple, efficient, low-cost, and highly reliable engine power insufficient warning.

Description

Technical Field

[0001] The present invention relates to the field of vehicles, and in particular to an engine power shortage warning method, device, equipment and computer-readable medium. Background Art

[0002] With the continuous development of relevant social technologies, vehicles have become the main means of transportation for users. Vehicles need to use engines to provide power. However, there may be insufficient engine power, which will affect driving comfort and safety. Therefore, it is very important to provide early warning for insufficient engine power to improve driving safety.

[0003] In other words, there is currently a need for early warning of insufficient engine power. Summary of the invention

[0004] In view of this, the purpose of the present application is to provide an engine power shortage warning method, device, equipment and computer-readable medium, which can realize the warning for engine power shortage, thereby improving driving safety.

[0005] The present application provides an engine power shortage warning method, the method comprising:

[0006] Acquire vehicle networking data of the vehicle, wherein the vehicle networking data at least includes engine intake pressure data, torque limit state data, throttle opening data, and rail pressure deviation data;

[0007] Determine whether any one of the intake pressure data, the torque limit state data, the throttle opening data and the rail pressure deviation data meets the corresponding target abnormal condition, and if the corresponding target abnormal condition is met, issue an engine power shortage warning; the target abnormal condition includes an intake pressure abnormal condition, a torque limit state abnormal condition, a throttle abnormal condition and a rail pressure deviation condition.

[0008] Optionally, the abnormal intake pressure condition is that the proportion of the number of abnormal intake pressure operating conditions in the preset time to the total number of all operating conditions is greater than the abnormal intake pressure ratio, and the intake pressure data includes the average intake pressure of each operating condition in all operating conditions within the preset time;

[0009] The determining whether any one of the intake pressure data, the torque limit state data, the throttle opening data and the rail pressure deviation data satisfies a corresponding target abnormality condition, and if the corresponding target abnormality condition is satisfied, then performing an engine power shortage warning comprises:

[0010] Obtaining the average intake pressure of each working condition in all working conditions within a preset time, and screening the working condition where the difference between the intake pressure standard value and the intake pressure average value is greater than the intake pressure difference threshold as the intake pressure abnormal working condition;

[0011] If the proportion of the number of abnormal intake pressure conditions in the total number of all conditions within the preset time is greater than the abnormal intake pressure ratio, an engine power shortage warning is issued.

[0012] Optionally, the torque limit state abnormal condition includes a multi-state switch limit abnormal condition, a smoke limit abnormal condition, a post-processing torque limit abnormal condition, and an overheat protection limit abnormal condition;

[0013] The determining whether any one of the intake pressure data, the torque limit state data, the throttle opening data and the rail pressure deviation data satisfies a corresponding target abnormality condition, and if the corresponding target abnormality condition is satisfied, then performing an engine power shortage warning comprises:

[0014] If the torque limit status data meets any one of the abnormal conditions of the multi-state switch limit, the smoke limit, the post-processing torque limit and the overheat protection limit, an engine power shortage warning is issued.

[0015] Optionally, the throttle abnormality condition is that the maximum throttle opening within a preset time is less than a throttle opening threshold;

[0016] The determining whether any one of the intake pressure data, the torque limit state data, the throttle opening data and the rail pressure deviation data satisfies a corresponding target abnormality condition, and if the corresponding target abnormality condition is satisfied, then performing an engine power shortage warning comprises:

[0017] Obtaining the maximum throttle opening value within a preset time according to the throttle opening data;

[0018] Determine whether the maximum throttle opening within a preset time is less than the throttle opening threshold. If so, issue an engine power shortage warning.

[0019] Optionally, the rail pressure deviation condition is that the time proportion of rail pressure deviation abnormal data within a preset time is greater than the rail pressure deviation abnormal proportion;

[0020] The determining whether any one of the intake pressure data, the torque limit state data, the throttle opening data and the rail pressure deviation data satisfies a corresponding target abnormality condition, and if the corresponding target abnormality condition is satisfied, then performing an engine power shortage warning comprises:

[0021] The data with a rail pressure deviation greater than an abnormal rail pressure deviation threshold value among the rail pressure deviation data within a preset time are selected as abnormal rail pressure deviation data;

[0022] If the time proportion of the rail pressure deviation abnormal data within the preset time is greater than the rail pressure deviation abnormal proportion, an engine power shortage warning is issued.

[0023] Optionally, the engine power shortage warning includes multiple warning levels;

[0024] The determining whether any one of the intake pressure data, the torque limit state data, the throttle opening data and the rail pressure deviation data satisfies a corresponding target abnormality condition, and if the corresponding target abnormality condition is satisfied, then performing an engine power shortage warning comprises:

[0025] The number of the intake pressure data, the torque limit state data, the throttle opening data, and the rail pressure deviation data that meet the target abnormality condition is determined, and the warning level of the engine power shortage warning is determined according to the number.

[0026] Optionally, the engine power shortage warning includes a warning type;

[0027] The method further comprises:

[0028] A target factor causing insufficient engine power is determined according to the warning type, wherein the target factor is at least one of an intake pressure, a torque limit state, a throttle opening, and a rail pressure deviation.

[0029] The present application provides an engine power shortage warning device, the device comprising:

[0030] An acquisition unit, used for acquiring vehicle networking data of the vehicle, wherein the vehicle networking data at least includes engine intake pressure data, torque limit state data, throttle opening data and rail pressure deviation data;

[0031] a determination unit, for determining whether any one of the intake pressure data, the torque limit state data, the throttle opening data and the rail pressure deviation data satisfies a corresponding target abnormal condition, and if the corresponding target abnormal condition is satisfied, an engine power shortage warning is issued; the target abnormal condition includes an intake pressure abnormal condition, a torque limit state abnormal condition, a throttle abnormal condition and a rail pressure deviation condition.

[0032] The present application provides an engine power shortage warning device, the device comprising: a processor and a memory;

[0033] The memory is used to store instructions;

[0034] The processor is used to execute the instructions in the memory to perform the method as described above.

[0035] The present application provides a computer-readable medium, comprising instructions, which, when executed on a computer, enable the computer to execute the method described above.

[0036] The present application provides an engine power shortage warning method, the method comprising: obtaining the vehicle's Internet of Vehicles data, the Internet of Vehicles data at least including the engine's intake pressure data, torque limit state data, throttle opening data and rail pressure deviation data, wherein the intake pressure data, torque limit state data, throttle opening data and rail pressure deviation data are highly correlated with the engine power shortage, and are one of the factors affecting the engine power shortage. Determine whether any one of the intake pressure data, torque limit state data, throttle opening data and rail pressure deviation data meets the corresponding target abnormal condition, if the corresponding target abnormal condition is met, then perform an engine power shortage warning, wherein the target abnormal condition includes an intake pressure abnormal condition, a torque limit state abnormal condition, a throttle abnormal condition and a rail pressure deviation condition. It can be seen from this that the present application can directly use the remotely collected Internet of Vehicles data to realize the warning of engine power shortage, avoid the use of highly complex algorithms, and realize a simple, efficient, low-cost and highly reliable engine power shortage warning. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] 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 some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1 A schematic diagram of a process flow of an engine power shortage warning method provided in an embodiment of the present application is shown;

[0039] Figure 2 A schematic diagram of a working condition provided by an embodiment of the present application is shown;

[0040] Figure 3 A schematic diagram of all working conditions provided by an embodiment of the present application is shown;

[0041] Figure 4 A schematic structural diagram of an engine power shortage warning device provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0042] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings 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.

[0043] In the vehicle field, underpowered diesel engines are one of the most common faults. Once underpowered faults occur, it will greatly affect the user's driving experience, reduce transportation efficiency, and may even cause safety accidents in serious cases. Therefore, early warning of underpowered diesel engines can avoid safety accidents or equipment damage caused by engine power reduction, while improving the operating efficiency and reliability of equipment.

[0044] Insufficient power is a common fault in the vehicle field. It is also difficult to handle and the cause of the fault is difficult to determine. It is one of the faults that is difficult for maintenance personnel to deal with.

[0045] Based on this, the embodiment of the present application provides an engine power shortage warning method, the method includes: obtaining the vehicle's Internet of Vehicles data, the Internet of Vehicles data at least includes the engine's intake pressure data, torque limit state data, throttle opening data and rail pressure deviation data, wherein the intake pressure data, torque limit state data, throttle opening data and rail pressure deviation data are highly correlated with the engine power shortage, and are one of the factors affecting the engine power shortage. Determine whether any one of the intake pressure data, torque limit state data, throttle opening data and rail pressure deviation data meets the corresponding target abnormal condition, if the corresponding target abnormal condition is met, then the engine power shortage warning is performed, wherein the target abnormal condition includes the intake pressure abnormal condition, the torque limit state abnormal condition, the throttle abnormal condition and the rail pressure deviation condition. It can be seen from this that the present application can directly use the remotely collected Internet of Vehicles data to realize the warning of engine power shortage, avoid the use of highly complex algorithms, and realize a simple, efficient, low-cost and highly reliable engine power shortage warning.

[0046] In order to better understand the technical solution and technical effects of the present application, specific embodiments will be described in detail below with reference to the accompanying drawings.

[0047] See also Figure 1 , which is a flow chart of an engine power shortage warning method provided in an embodiment of the present application.

[0048] The engine power shortage warning method provided in this embodiment can be applied to the power shortage warning of a diesel engine.

[0049] The engine power shortage warning method provided in this embodiment includes the following steps:

[0050] S101, obtaining vehicle networking data of the vehicle, where the vehicle networking data at least includes engine intake pressure data, torque limit state data, throttle opening data, and rail pressure deviation data.

[0051] In an embodiment of the present application, the vehicle will remotely transmit Internet of Vehicles data to the Internet of Vehicles platform while driving, so that the vehicle's Internet of Vehicles data can be obtained, and data with a high correlation with insufficient engine power can be screened from the Internet of Vehicles data to issue an engine power shortage warning.

[0052] The Internet of Vehicles data includes at least the engine's intake pressure data, torque limit status data, throttle opening data, and rail pressure deviation data. Among them, the intake pressure data, torque limit status data, throttle opening data, and rail pressure deviation data are highly correlated with engine power shortage and are several major factors affecting engine power shortage. The intake pressure data, torque limit status data, throttle opening data, and rail pressure deviation data are screened based on engine principles, fault repair manuals, and vehicle knowledge, and have a high reliability for warning of engine power shortage.

[0053] According to the engine principle and fault repair manual, if the engine has insufficient air intake, that is, the intake pressure is too low, the vehicle will have a power shortage fault. According to the engine principle and vehicle knowledge, the torque limit state, rail pressure deviation and throttle opening can all reflect whether the vehicle has power shortage.

[0054] S102, determining whether any one of the intake pressure data, the torque limit state data, the throttle opening data and the rail pressure deviation data satisfies the corresponding target abnormal condition. If the corresponding target abnormal condition is satisfied, an engine power shortage warning is issued; the target abnormal condition includes an intake pressure abnormal condition, a torque limit state abnormal condition, a throttle abnormal condition and a rail pressure deviation condition.

[0055] In an embodiment of the present application, after obtaining intake pressure data, torque limit state data, throttle opening data and rail pressure deviation data from the Internet of Vehicles data, an engine power shortage warning can be performed based on the intake pressure data, torque limit state data, throttle opening data and rail pressure deviation data. It can be determined whether any one of the intake pressure data, torque limit state data, throttle opening data and rail pressure deviation data meets the corresponding target abnormal condition. If the corresponding target abnormal condition is met, an engine power shortage warning is performed.

[0056] Specifically, the target abnormal conditions include abnormal intake pressure conditions, abnormal torque limit state conditions, abnormal throttle conditions, and rail pressure deviation conditions. In other words, it is possible to determine whether the intake pressure data meets the abnormal intake pressure condition, whether the torque limit state data meets the abnormal torque limit state condition, whether the throttle opening data meets the abnormal throttle condition, and whether the rail pressure deviation data meets the rail pressure deviation condition. If the above data meets any of the target abnormal conditions, it means that there may be insufficient engine power, and an engine power shortage warning can be issued.

[0057] The following is a detailed introduction to engine power shortage warning based on Internet of Vehicles data.

[0058] In the embodiment of the present application, considering that if the intake pressure is too low, the vehicle may have insufficient engine power, it is possible to determine whether the engine is underpowered based on whether the engine intake pressure data meets the abnormal intake pressure condition.

[0059] Specifically, the intake pressure data includes the average intake pressure of each operating condition in all operating conditions within a preset time. All operating conditions may include common operating conditions and extreme operating conditions. The common operating conditions of engines of different models can be determined based on the vehicle operating condition (map) diagram. The extreme operating conditions of engines of corresponding models are determined based on the calibration data of engines of different models. The universal data of engines of different models are used as the standard value of the intake pressure of engines of corresponding models. The abnormal intake pressure condition is that the proportion of the number of abnormal intake pressure operating conditions in the total number of all operating conditions within the preset time is greater than the abnormal intake pressure ratio.

[0060] The average intake pressure of each working condition in all working conditions within the preset time can be obtained, and the working conditions where the difference between the standard intake pressure value and the average intake pressure value is greater than the intake pressure difference threshold are screened as abnormal intake pressure working conditions. If the number of abnormal intake pressure working conditions in the preset time accounts for a proportion of the total number of all working conditions that is greater than the abnormal intake pressure ratio, an engine power shortage warning is issued. In other words, the average intake pressure of the vehicle under common working conditions and extreme working conditions can be monitored within the preset time. If the average intake pressure of any working condition is less than the standard intake pressure value, and the difference between the standard intake pressure value and the average intake pressure value is greater than the intake pressure difference threshold, the working condition is confirmed as an abnormal working condition, and other conditions are confirmed as normal working conditions. If the proportion of abnormal working conditions in all working conditions is greater than the abnormal intake pressure ratio, it means that there may be insufficient engine power, and an engine power shortage warning can be issued.

[0061] As an example, the intake pressure difference threshold is 100 hPa, and the intake pressure abnormality ratio is 25%. The intake pressure difference threshold of 100 hPa is an empirical value obtained by repairing the intake pressure failure of the engine.

[0062] refer to Figure 2 The figure shows a schematic diagram of a working condition. Figure 2 The horizontal axis is the speed in the working condition, and the vertical axis is the torque in the working condition. Figure 2 The larger the value of the medium working condition, the more common the working condition. Figure 2 The working conditions shown in the figure can be screened to obtain 15 common working conditions. Combined with the extreme working conditions of the calibration data, the data of all 16 working conditions can be referenced. Figure 3 shown.

[0063] In an embodiment of the present application, considering that the torque limit status field in the vehicle networking data can also reflect whether the vehicle is underpowered, it is possible to determine whether the engine is underpowered based on whether the torque limit status data meets the torque limit status abnormality condition.

[0064] Specifically, the torque limit state data includes a multi-state switch limit field, a smoke limit field, a post-processing torque limit field, and an overheat protection limit field. The torque limit state abnormal conditions include a multi-state switch limit abnormal condition, a smoke limit abnormal condition, a post-processing torque limit abnormal condition, and an overheat protection limit abnormal condition. If the torque limit state data satisfies any one of the multi-state switch limit abnormal condition, the smoke limit abnormal condition, the post-processing torque limit abnormal condition, and the overheat protection limit abnormal condition, an engine power shortage warning is issued.

[0065] The multi-state switch limit abnormal condition, the smoke limit abnormal condition, the post-processing torque limit abnormal condition and the overheat protection limit abnormal condition are torque limit state abnormal conditions determined based on engine calibration data.

[0066] As an example, the multi-state switch limit abnormal condition is that the throttle opening is greater than 80, and the multi-state switch limit field is continuously reported for more than 10s. That is, when the multi-state switch limit field in the torque limit status data is continuously reported for 10s when the throttle opening is greater than 80, it means that the torque limit status data meets the multi-state switch limit abnormal condition, and an engine power shortage warning can be issued.

[0067] As another example, the smoke limit abnormal condition is when the vehicle is in a uniform speed condition and the smoke limit field is continuously reported for more than 3 seconds, or when the vehicle is in an accelerating condition and the smoke limit field is continuously reported for more than 5 seconds, that is, when the smoke limit field in the torque limit status data is continuously reported for 3 seconds when the vehicle is in a uniform speed condition or is continuously reported for 5 seconds when the vehicle is in an accelerating condition, it means that the torque limit status data meets the smoke limit abnormal condition, and an engine power shortage warning can be issued.

[0068] As another example, the post-processing torque limit abnormal condition is when the post-processing torque limit field in the torque limit status data is reported while the vehicle is driving, which means that the torque limit status data meets the post-processing torque limit abnormal condition, and an engine power shortage warning can be issued.

[0069] As another example, the overheating protection limit abnormal condition is that the overheating protection limit field is continuously reported for more than 5 seconds. That is, when the overheating protection limit field in the torque limit status data is continuously reported for 5 seconds, it means that the torque limit status data meets the overheating protection limit abnormal condition, and an engine power shortage warning can be issued.

[0070] In the embodiment of the present application, considering that the throttle opening can also reflect whether the vehicle is underpowered, it is possible to determine whether the engine is underpowered based on whether the throttle opening data satisfies the throttle abnormality condition.

[0071] Specifically, the throttle abnormality condition is that the maximum throttle opening within a preset time is less than the throttle opening threshold. The maximum throttle opening within a preset time can be obtained based on the throttle opening data, and it can be determined whether the maximum throttle opening within the preset time is less than the throttle opening threshold. If it is less than, an engine power shortage warning is issued. In other words, according to the diesel engine principle and vehicle knowledge, the maximum throttle opening within a preset time is screened. If the maximum throttle opening is less than the throttle opening threshold, the throttle opening change of the vehicle is abnormal, and it can be determined that the engine power is insufficient.

[0072] As an example, the throttle opening threshold is 95, and the preset time is 24h. According to the calibration value of the engine throttle opening, the maximum throttle opening value is less than 100, which can confirm that the throttle opening changes abnormally. However, in fact, there may be measurement errors in the throttle opening, so the throttle opening threshold is 95 as an empirical value to avoid measurement errors.

[0073] In the embodiment of the present application, considering that the rail pressure deviation can also reflect whether the vehicle is underpowered, it is possible to determine whether the engine is underpowered based on whether the rail pressure deviation data satisfies the rail pressure deviation abnormality condition.

[0074] Specifically, the rail pressure deviation condition is that the time proportion of the rail pressure deviation abnormal data within the preset time is greater than the rail pressure deviation abnormal proportion. The Internet of Vehicles data may include actual rail pressure data and set rail pressure data, and the rail pressure deviation data is the absolute value of the difference between the actual rail pressure data and the set rail pressure data.

[0075] The data of rail pressure deviation data within the preset time that is greater than the rail pressure deviation abnormality threshold value can be screened as rail pressure deviation abnormality data. If the time proportion of the rail pressure deviation abnormality data within the preset time is greater than the rail pressure deviation abnormality ratio, an engine power shortage warning is issued. In other words, the absolute value of the difference between the actual rail pressure of the vehicle and the set rail pressure can be monitored within the preset time. If the time proportion of the absolute value of the difference that is greater than the rail pressure deviation abnormality threshold value is greater than the rail pressure deviation abnormality ratio, it means that there may be a situation of insufficient engine power, and an engine power shortage warning can be issued.

[0076] As an example, the rail pressure deviation abnormal threshold is 100 bar, the rail pressure deviation abnormal ratio is 5%, and the preset time is 24 hours. The rail pressure deviation data within 24 hours that is greater than 100 bar is selected as the rail pressure deviation abnormal data. If the time proportion of the rail pressure deviation abnormal data within 24 hours is greater than 5%, an engine power shortage warning is issued.

[0077] It can be seen from this that when it can be determined that the intake pressure data meets the intake pressure abnormality condition, the torque limit state data meets the torque limit state abnormality condition, the throttle opening data meets the throttle abnormality condition, or the rail pressure deviation data meets the rail pressure deviation condition, it means that there may be insufficient engine power, and an engine power shortage warning can be issued.

[0078] In an embodiment of the present application, the engine power shortage warning includes multiple warning levels, that is, when the engine power shortage warning is performed, a graded warning can be performed. Specifically, the number of intake pressure data, torque limit state data, throttle opening data and rail pressure deviation data that meet the target abnormal conditions can be determined, and the warning level of the engine power shortage warning can be determined according to the number. That is to say, the warning level of the engine power shortage warning is determined according to the number of intake pressure data that meets the intake pressure abnormal condition, torque limit state data that meets the torque limit state abnormal condition, throttle opening data that meets the throttle abnormal condition, and rail pressure deviation data that meets the rail pressure deviation condition.

[0079] As an example, when the number of intake pressure data satisfying the intake pressure abnormality condition, the torque limit state data satisfying the torque limit state abnormality condition, the throttle opening data satisfying the throttle abnormality condition and the rail pressure deviation data satisfying the rail pressure deviation condition is 1, the warning level of the engine power shortage warning is determined to be 1, and the number can be that the intake pressure data satisfies the intake pressure abnormality condition, the torque limit state data satisfies the torque limit state abnormality condition, the throttle opening data satisfies the throttle abnormality condition or the rail pressure deviation data satisfies the rail pressure deviation condition, that is, one of the intake pressure data, the torque limit state data, the throttle opening data and the rail pressure deviation data satisfies the corresponding target abnormality condition.

[0080] As another example, when the number of the intake pressure data satisfying the intake pressure abnormality condition, the torque limit state data satisfying the torque limit state abnormality condition, the throttle opening data satisfying the throttle abnormality condition, and the rail pressure deviation data satisfying the rail pressure deviation condition is 2, it is determined that the warning level of the engine power shortage warning is 2, and the number can be any two of the intake pressure data satisfying the intake pressure abnormality condition, the torque limit state data satisfying the torque limit state abnormality condition, the throttle opening data satisfying the throttle abnormality condition, and the rail pressure deviation data satisfying the rail pressure deviation condition.

[0081] As another example, when the number of intake pressure data satisfying the intake pressure abnormality condition, the torque limit state data satisfying the torque limit state abnormality condition, the throttle opening data satisfying the throttle abnormality condition, and the rail pressure deviation data satisfying the rail pressure deviation condition is 3, the warning level of the engine power shortage warning is determined to be 3, and the number can be any 3 of the intake pressure data satisfying the intake pressure abnormality condition, the torque limit state data satisfying the torque limit state abnormality condition, the throttle opening data satisfying the throttle abnormality condition, and the rail pressure deviation data satisfying the rail pressure deviation condition.

[0082] As another example, when the number of intake pressure data satisfying the intake pressure abnormality condition, the torque limit state data satisfying the torque limit state abnormality condition, the throttle opening data satisfying the throttle abnormality condition and the rail pressure deviation data satisfying the rail pressure deviation condition is 4, the warning level of the engine power shortage warning is determined to be 4, and the number may be that the intake pressure data satisfies the intake pressure abnormality condition, the torque limit state data satisfies the torque limit state abnormality condition, the throttle opening data satisfies the throttle abnormality condition and the rail pressure deviation data satisfies the rail pressure deviation condition, that is, the intake pressure data, the torque limit state data, the throttle opening data and the rail pressure deviation data all satisfy the corresponding target abnormality conditions.

[0083] By classifying the engine power shortage warning, the user can be directly notified of the warning level so that the user can know the specific severity of the engine power shortage according to the warning level, thereby further improving driving safety.

[0084] In an embodiment of the present application, the engine power shortage warning includes a warning type, that is, when the engine power shortage warning is performed, the user can be notified of the warning type. Specifically, the target factor causing the engine power shortage can be determined according to the warning type, and the target factor is at least one of the intake pressure, the torque limit state, the throttle opening, and the rail pressure deviation.

[0085] In other words, by notifying the user of the warning type when an engine power shortage warning is issued, the vehicle can be subsequently repaired according to the warning type, greatly improving maintenance efficiency.

[0086] It can be seen that the engine power shortage warning method provided in the embodiment of the present application combines engine principles, vehicle knowledge, and fault repair manuals, and comprehensively selects the factors affecting engine power shortage in the Internet of Vehicles data, which has a highly reliable theoretical guarantee. Using Internet of Vehicles data collected remotely by vehicles can avoid the use of highly complex algorithms, achieve simple and efficient warnings, and have low costs. Not only can faulty vehicles be warned in advance, allowing users and maintenance personnel to prepare for the response in advance, but the warning will also identify the target factors that cause engine power shortage, which can greatly improve the efficiency of fault repair.

[0087] Based on the engine power shortage warning method provided in the above embodiment, the embodiment of the present application also provides an engine power shortage warning device, and its working principle is described in detail below in conjunction with the accompanying drawings.

[0088] See also Figure 4 , which is a structural block diagram of an engine power shortage warning device provided in an embodiment of the present application.

[0089] The engine power shortage warning device 200 provided in this embodiment includes:

[0090] An acquisition unit 210 is used to acquire vehicle networking data of the vehicle, wherein the vehicle networking data at least includes engine intake pressure data, torque limit state data, throttle opening data, and rail pressure deviation data;

[0091] The determination unit 220 is used to determine whether any one of the intake pressure data, the torque limit state data, the throttle opening data and the rail pressure deviation data meets the corresponding target abnormal condition, and if the corresponding target abnormal condition is met, an engine power shortage warning is performed; the target abnormal condition includes an intake pressure abnormal condition, a torque limit state abnormal condition, a throttle abnormal condition and a rail pressure deviation condition.

[0092] Optionally, the abnormal intake pressure condition is that the proportion of the number of abnormal intake pressure operating conditions in the preset time to the total number of all operating conditions is greater than the abnormal intake pressure ratio, and the intake pressure data includes the average intake pressure of each operating condition in all operating conditions within the preset time;

[0093] The determining unit 220 is specifically configured to:

[0094] Obtaining the average intake pressure of each working condition in all working conditions within a preset time, and screening the working condition where the difference between the intake pressure standard value and the intake pressure average value is greater than the intake pressure difference threshold as the intake pressure abnormal working condition;

[0095] If the proportion of the number of abnormal intake pressure conditions in the total number of all conditions within the preset time is greater than the abnormal intake pressure ratio, an engine power shortage warning is issued.

[0096] Optionally, the torque limit state abnormal condition includes a multi-state switch limit abnormal condition, a smoke limit abnormal condition, a post-processing torque limit abnormal condition, and an overheat protection limit abnormal condition;

[0097] The determining unit 220 is specifically configured to:

[0098] If the torque limit status data meets any one of the abnormal conditions of the multi-state switch limit, the smoke limit, the post-processing torque limit and the overheat protection limit, an engine power shortage warning is issued.

[0099] Optionally, the throttle abnormality condition is that the maximum throttle opening within a preset time is less than a throttle opening threshold;

[0100] The determining unit 220 is specifically configured to:

[0101] Obtaining the maximum throttle opening value within a preset time according to the throttle opening data;

[0102] Determine whether the maximum throttle opening within a preset time is less than the throttle opening threshold. If so, issue an engine power shortage warning.

[0103] Optionally, the rail pressure deviation condition is that the time proportion of rail pressure deviation abnormal data within a preset time is greater than the rail pressure deviation abnormal proportion;

[0104] The determining unit 220 is specifically configured to:

[0105] The data with a rail pressure deviation greater than an abnormal rail pressure deviation threshold value among the rail pressure deviation data within a preset time are selected as abnormal rail pressure deviation data;

[0106] If the time proportion of the rail pressure deviation abnormal data within the preset time is greater than the rail pressure deviation abnormal proportion, an engine power shortage warning is issued.

[0107] Optionally, the engine power shortage warning includes multiple warning levels;

[0108] The determining unit 220 is specifically configured to:

[0109] The number of the intake pressure data, the torque limit state data, the throttle opening data, and the rail pressure deviation data that meet the target abnormality condition is determined, and the warning level of the engine power shortage warning is determined according to the number.

[0110] Optionally, the engine power shortage warning includes a warning type;

[0111] The device further comprises a target factor determination unit, the target factor determination unit being configured to:

[0112] A target factor causing insufficient engine power is determined according to the warning type, wherein the target factor is at least one of an intake pressure, a torque limit state, a throttle opening, and a rail pressure deviation.

[0113] The units involved in the embodiments described in this application may be implemented by software or hardware, wherein the name of a unit does not, in some cases, constitute a limitation on the unit itself.

[0114] The functions described above herein may be performed at least in part by one or more hardware logic components. For example, without limitation, exemplary types of hardware logic components that may be used include: field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), complex programmable logic devices (CPLDs), and the like.

[0115] Based on the engine power shortage warning method provided in the above embodiment, the embodiment of the present application further provides an engine power shortage warning device, and the engine power shortage warning device includes:

[0116] The processor and the memory may be one or more processors. In some embodiments of the present application, the processor and the memory may be connected via a bus or other means.

[0117] The memory may include a read-only memory and a random access memory, and provides instructions and data to the processor. A portion of the memory may also include an NVRAM. The memory stores an operating system and operating instructions, executable modules or data structures, or a subset thereof, or an extended set thereof, wherein the operating instructions may include various operating instructions for implementing various operations. The operating system may include various system programs for implementing various basic services and processing hardware-based tasks.

[0118] The processor controls the operation of the terminal device and may also be referred to as a CPU.

[0119] The method disclosed in the above embodiment of the present application can be applied to a processor or implemented by a processor. The processor can be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in the processor or an instruction in the form of software. The above processor can be a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware component. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose 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 the present application can be directly embodied as a hardware decoding processor to perform, or the hardware and software modules in the decoding processor can be combined to perform. 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.

[0120] The embodiment of the present application also provides a computer-readable medium for storing program code, where the program code is used to execute any one of the methods of the aforementioned embodiments.

[0121] It should be noted that the computer-readable medium mentioned above in the present application may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, a computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, device or device. In the present application, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, which carries a computer-readable program code. This propagated data signal may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer readable signal media may also be any computer readable medium other than computer readable storage media, which may send, propagate or transmit a program for use by or in conjunction with an instruction execution system, apparatus or device. The program code contained on the computer readable medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (radio frequency), etc., or any suitable combination of the above.

[0122] The computer-readable medium may be included in the electronic device, or may exist independently without being incorporated into the electronic device.

[0123] It should be noted that a person skilled in the art can understand that all or part of the processes in the above method embodiments can be implemented by instructing related hardware through a computer program, and the program can be stored in a computer-readable medium, and when the program is executed, it can include the processes in the above method embodiments. The medium can be a magnetic disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc.

[0124] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment. The device embodiment described above is merely schematic, and the units and modules described as separate components may or may not be physically separated. In addition, some or all of the units and modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. A person of ordinary skill in the art can understand and implement it without paying creative work.

[0125] The above is only a preferred implementation of the present application. Although the present application has been disclosed as a preferred embodiment, it is not intended to limit the present application. Any technician familiar with the art can use the above disclosed methods and technical contents to make many possible changes and modifications to the technical solution of the present application without departing from the scope of the technical solution of the present application, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application still falls within the scope of protection of the technical solution of the present application.

Claims

1. An engine power shortage warning method, characterized in that: The method comprises: Acquire vehicle networking data of the vehicle, wherein the vehicle networking data at least includes engine intake pressure data, torque limit state data, throttle opening data, and rail pressure deviation data; determining whether any one of the intake pressure data, the torque limit state data, the throttle opening data and the rail pressure deviation data satisfies a corresponding target abnormal condition, and if the corresponding target abnormal condition is satisfied, performing an engine power shortage warning; the target abnormal condition includes an intake pressure abnormal condition, a torque limit state abnormal condition, a throttle abnormal condition and a rail pressure deviation condition; The abnormal intake pressure condition is that the proportion of the number of abnormal intake pressure working conditions in the total number of all working conditions within the preset time is greater than the abnormal intake pressure ratio, and the intake pressure data includes the average intake pressure of each working condition in all working conditions within the preset time; The torque limit state abnormal conditions include multi-state switch limit abnormal conditions, smoke limit abnormal conditions, post-processing torque limit abnormal conditions and overheat protection limit abnormal conditions; The throttle abnormal condition is that the maximum throttle opening within a preset time is less than the throttle opening threshold; The rail pressure deviation condition is that the time proportion of the rail pressure deviation abnormal data within the preset time is greater than the rail pressure deviation abnormal proportion; The engine power shortage warning includes multiple warning levels; The determining whether any one of the intake pressure data, the torque limit state data, the throttle opening data and the rail pressure deviation data satisfies a corresponding target abnormality condition, and if the corresponding target abnormality condition is satisfied, then performing an engine power shortage warning comprises: The number of the intake pressure data, the torque limit state data, the throttle opening data, and the rail pressure deviation data that meet the target abnormality conditions is determined, and the warning level of the engine power shortage warning is determined according to the number of the target abnormality conditions.

2. The method according to claim 1, characterized in that The determining whether any one of the intake pressure data, the torque limit state data, the throttle opening data and the rail pressure deviation data satisfies a corresponding target abnormality condition, and if the corresponding target abnormality condition is satisfied, then performing an engine power shortage warning comprises: Obtaining the average intake pressure of each working condition in all working conditions within a preset time, and screening the working condition where the difference between the intake pressure standard value and the intake pressure average value is greater than the intake pressure difference threshold as the intake pressure abnormal working condition; If the proportion of the number of abnormal intake pressure conditions in the total number of all conditions within the preset time is greater than the abnormal intake pressure ratio, an engine power shortage warning is issued.

3. The method according to claim 1, characterized in that The determining whether any one of the intake pressure data, the torque limit state data, the throttle opening data and the rail pressure deviation data satisfies a corresponding target abnormality condition, and if the corresponding target abnormality condition is satisfied, then performing an engine power shortage warning comprises: If the torque limit status data meets any one of the abnormal conditions of the multi-state switch limit, the smoke limit, the post-processing torque limit and the overheat protection limit, an engine power shortage warning is issued.

4. The method according to claim 1, characterized in that: The determining whether any one of the intake pressure data, the torque limit state data, the throttle opening data and the rail pressure deviation data satisfies a corresponding target abnormality condition, and if the corresponding target abnormality condition is satisfied, then performing an engine power shortage warning comprises: Obtaining the maximum throttle opening value within a preset time according to the throttle opening data; Determine whether the maximum throttle opening within a preset time is less than the throttle opening threshold. If so, issue an engine power shortage warning.

5. The method according to claim 1, characterized in that The determining whether any one of the intake pressure data, the torque limit state data, the throttle opening data and the rail pressure deviation data satisfies a corresponding target abnormality condition, and if the corresponding target abnormality condition is satisfied, then performing an engine power shortage warning comprises: The data with a rail pressure deviation greater than an abnormal rail pressure deviation threshold value among the rail pressure deviation data within a preset time are selected as abnormal rail pressure deviation data; If the time proportion of the rail pressure deviation abnormal data within the preset time is greater than the rail pressure deviation abnormal proportion, an engine power shortage warning is issued.

6. The method according to any one of claims 1 to 5, characterized in that: The engine power shortage warning includes warning types; The method further comprises: A target factor causing insufficient engine power is determined according to the warning type, wherein the target factor is at least one of an intake pressure, a torque limit state, a throttle opening, and a rail pressure deviation.

7. An engine power shortage warning device, characterized in that: The device comprises: An acquisition unit, used for acquiring vehicle networking data of the vehicle, wherein the vehicle networking data at least includes engine intake pressure data, torque limit state data, throttle opening data and rail pressure deviation data; a determination unit, configured to determine whether any one of the intake pressure data, the torque limit state data, the throttle opening data, and the rail pressure deviation data satisfies a corresponding target abnormality condition, and if the corresponding target abnormality condition is satisfied, an engine power shortage warning is issued; the target abnormality condition includes an intake pressure abnormality condition, a torque limit state abnormality condition, a throttle abnormality condition, and a rail pressure deviation condition; The abnormal intake pressure condition is that the proportion of the number of abnormal intake pressure working conditions in the total number of all working conditions within the preset time is greater than the abnormal intake pressure ratio, and the intake pressure data includes the average intake pressure of each working condition in all working conditions within the preset time; The torque limit state abnormal conditions include multi-state switch limit abnormal conditions, smoke limit abnormal conditions, post-processing torque limit abnormal conditions and overheat protection limit abnormal conditions; The throttle abnormal condition is that the maximum throttle opening within a preset time is less than the throttle opening threshold; The rail pressure deviation condition is that the time proportion of the rail pressure deviation abnormal data within the preset time is greater than the rail pressure deviation abnormal proportion; The engine power shortage warning includes multiple warning levels; The determining unit is specifically configured to: The number of the intake pressure data, the torque limit state data, the throttle opening data, and the rail pressure deviation data that meet the target abnormality conditions is determined, and the warning level of the engine power shortage warning is determined according to the number of the target abnormality conditions.

8. An engine power shortage warning device, characterized in that: The device comprises: a processor and a memory; The memory is used to store instructions; The processor is used to execute the instructions in the memory to perform the method according to any one of claims 1 to 6.

9. A computer-readable medium, characterized in that The method comprises instructions which, when executed on a computer, cause the computer to execute the method according to any one of claims 1 to 6.

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