阅读说明：本技术 电子节气门状态管理方法、系统、服务器及存储介质 (Electronic throttle state management method, system, server and storage medium ) 是由 徐磊 吕践 蔡炜旻 苏永杰 于 2021-08-23 设计创作，主要内容包括：本发明提供了一种电子节气门状态管理方法、系统、服务器及存储介质。其中,所述电子节气门状态管理方法包括更新方法,所述更新方法包括：获取并存储至少两个车辆的电子节气门的特征参数,所述特征参数包括工况参数和故障诊断参数；分析系统基于历史的所述特征参数建立所述工况参数与故障发展进程之间的映射关系；以及,所述映射关系更新至专家系统。后续可基于所述专家系统得到所述车辆的电子节气门的故障预测参数。如此配置,通过历史数据在故障发展进程中的关联特性,能够得知故障发生前的所述特征参数的变化规律,从而可以在故障尚未发生时就提醒用户,解决了现有技术中的电子节气门的诊断功能在故障识别上具有滞后性的问题。(The invention provides a method, a system, a server and a storage medium for managing the state of an electronic throttle. Wherein the electronic throttle state management method includes an update method including: acquiring and storing characteristic parameters of electronic throttles of at least two vehicles, wherein the characteristic parameters comprise working condition parameters and fault diagnosis parameters; the analysis system establishes a mapping relation between the working condition parameters and a fault development process based on the historical characteristic parameters; and updating the mapping relation to an expert system. Failure prediction parameters for an electronic throttle of the vehicle may subsequently be obtained based on the expert system. With the configuration, the change rule of the characteristic parameter before the fault occurs can be known through the correlation characteristic of the historical data in the fault development process, so that a user can be reminded when the fault does not occur, and the problem that the diagnosis function of the electronic throttle valve in the prior art has hysteresis in fault identification is solved.)

1. An electronic throttle state management method, characterized in that the electronic throttle state management method includes an update method including:

acquiring and storing characteristic parameters of electronic throttles of at least two vehicles, wherein the characteristic parameters comprise working condition parameters and fault diagnosis parameters;

the analysis system establishes a mapping relation between the working condition parameters and a fault development process based on the historical characteristic parameters; and the number of the first and second groups,

and updating the mapping relation to an expert system.

2. The electronic throttle state management method according to claim 1, characterized in that the electronic throttle state management method further comprises an inquiry method including:

acquiring the working condition parameters of a single vehicle;

if the working condition parameters are within the query range, the expert system obtains fault prediction parameters of the electronic throttle valve of the vehicle based on the working condition parameters;

if the working condition parameters are not in the query range, the analysis system outputs an active control instruction based on the working condition parameters, and the characteristic parameters of the vehicle when responding to the active control instruction are obtained; and the number of the first and second groups,

and the analysis system obtains the fault prediction parameters based on the newly obtained working condition parameters.

3. The electronic throttle state management method according to claim 2, characterized in that the step of outputting the active control instruction includes:

confirming whether the vehicle is currently in a safe state or not, wherein the safe state comprises a parking flameout state; and the number of the first and second groups,

and if the vehicle is in a safe state, outputting the active control instruction.

4. The electronic throttle state management method according to claim 2, characterized in that the failure prediction parameters include: fault status and fault type; wherein the selectable values of the fault condition include: no fault, faulty and impending fault; when the fault condition is an impending fault, the fault parameters further include a predicted value characterizing a future time at which the fault occurred.

5. The electronic throttle state management method according to any one of claims 1 to 4, wherein the fault diagnosis parameter is obtained based on at least one of a motor drive level diagnosis, a position sensor circuit diagnosis, an electronic throttle dynamic response capability diagnosis, a control PWM range diagnosis, and a safety monitoring diagnosis.

6. The electronic throttle state management method according to any one of claims 1 to 4, characterized in that the operating condition parameters include: controlling at least one of a signal statistical indicator, an environmental condition parameter, and a fault impact parameter;

the control signal statistical indexes comprise probability density of position sensor signals, probability density of pulse width modulation signals, proportion of the position sensor signals exceeding a first preset value, and proportion of the pulse width modulation signals exceeding a second preset value;

the environment working condition parameters comprise environment temperature, environment humidity and weather index data; and the number of the first and second groups,

the fault influence parameters comprise vehicle acceleration performance, idling speed, idling stability and air leakage self-learning values.

7. The electronic throttle state management method according to any one of claims 1 to 4, characterized in that the inquiry method further comprises: and outputting the service parameters to the service application.

8. The server is characterized by being used for acquiring and storing characteristic parameters of electronic throttles of at least two vehicles, wherein the characteristic parameters comprise operating condition parameters and fault diagnosis parameters;

the server is provided with an analysis system, and the analysis system is used for establishing a mapping relation between the working condition parameters and a fault development process based on historical characteristic parameters;

the server is also used for updating the mapping relation to an expert system.

9. A management system comprising a terminal and a server according to claim 8, said terminal being communicatively connected to said server, said expert system being located at said server or said terminal.

10. A storage medium storing a program which, when executed, executes an electronic throttle state management method according to any one of claims 1 to 7.

Technical Field

The invention relates to the field of vehicle control, in particular to an electronic throttle state management method, an electronic throttle state management system, a server and a storage medium.

Background

The electronic throttle valve is used as a key part of a vehicle, and the health condition of the electronic throttle valve seriously affects performance indexes of the vehicle, such as safety, drivability and the like. For a vehicle that meets the requirements of the national six-stage emission regulations and the ISO26262 functional safety standards, an EMS (Engine Management System) System configures an electronic throttle valve-related online fault diagnosis function and an electronic throttle valve-related functional safety monitoring function.

The current diagnostic function has hysteresis in fault recognition, and for example, when the electronic throttle valve is about to fail, the diagnostic function cannot find the failure. When the fault suddenly occurs, the EMS monitoring function can report the fault and perform related safety protection operation, which may cause the problems of limited vehicle speed, limp driving, even engine flameout and the like. The light person affects the driving experience of the user, and the heavy person may cause the vehicle to be unable to move or even cause a safety accident.

In summary, the diagnostic function of the electronic throttle valve in the related art has a problem of hysteresis in fault recognition.

Disclosure of Invention

The invention aims to provide a method, a system, a server and a storage medium for managing the state of an electronic throttle valve, so as to solve the problem that the diagnosis function of the electronic throttle valve in the prior art has hysteresis in fault identification.

In order to solve the above-described technical problem, according to a first aspect of the present invention, there is provided an electronic throttle state management method including an update method including:

acquiring and storing characteristic parameters of electronic throttles of at least two vehicles, wherein the characteristic parameters comprise working condition parameters and fault diagnosis parameters;

the analysis system establishes a mapping relation between the working condition parameters and a fault development process based on the historical characteristic parameters; and the number of the first and second groups,

and updating the mapping relation to an expert system.

Optionally, the electronic throttle state management method further includes an inquiry method, where the inquiry method includes:

acquiring the working condition parameters of a single vehicle;

if the working condition parameters are within the query range, the expert system obtains fault prediction parameters of the electronic throttle valve of the vehicle based on the working condition parameters;

if the working condition parameters are not in the query range, the analysis system outputs an active control instruction based on the working condition parameters, and the characteristic parameters of the vehicle when responding to the active control instruction are obtained; and the number of the first and second groups,

and the analysis system obtains the fault prediction parameters based on the newly obtained working condition parameters.

Optionally, the step of outputting the active control instruction includes:

confirming whether the vehicle is currently in a safe state or not, wherein the safe state comprises a parking flameout state; and the number of the first and second groups,

and if the vehicle is in a safe state, outputting the active control instruction.

Optionally, the fault prediction parameters include: fault status and fault type; wherein the selectable values of the fault condition include: no fault, faulty and impending fault; when the fault condition is an impending fault, the fault parameters further include a predicted value characterizing a future time at which the fault occurred.

Optionally, the fault diagnosis parameter is obtained based on at least one of motor driving level diagnosis, position sensor circuit diagnosis, electronic throttle valve dynamic response capability diagnosis, control PWM range diagnosis, and safety monitoring diagnosis.

Optionally, the operating condition parameters include: controlling at least one of a signal statistical indicator, an environmental condition parameter, and a fault impact parameter;

the control signal statistical indexes comprise probability density of position sensor signals, probability density of pulse width modulation signals, proportion of the position sensor signals exceeding a first preset value, and proportion of the pulse width modulation signals exceeding a second preset value;

the environment working condition parameters comprise environment temperature, environment humidity and weather index data; and the number of the first and second groups,

the fault influence parameters comprise vehicle acceleration performance, idling speed, idling stability and air leakage self-learning values.

Optionally, the query method further includes: and outputting the service parameters to the service application.

In order to solve the technical problem, according to a second aspect of the present invention, a server is provided, where the server is configured to obtain and store characteristic parameters of electronic throttles of at least two vehicles, where the characteristic parameters include operating condition parameters and fault diagnosis parameters;

the server is provided with an analysis system, and the analysis system is used for establishing a mapping relation between the working condition parameters and a fault development process based on historical characteristic parameters;

the server is also used for updating the mapping relation to an expert system.

In order to solve the technical problem, according to a third aspect of the present invention, a management system is provided, where the management system includes a terminal and the server, the terminal is in communication connection with the server, and the expert system is disposed at the server or the terminal.

In order to solve the above technical problem, according to a fourth aspect of the present invention, there is provided a storage medium storing a program which, when executed, executes the above electronic throttle state management method.

Compared with the prior art, in the electronic throttle state management method, the electronic throttle state management system, the server and the storage medium, the electronic throttle state management method comprises an updating method, and the updating method comprises the following steps: acquiring and storing characteristic parameters of electronic throttles of at least two vehicles, wherein the characteristic parameters comprise working condition parameters and fault diagnosis parameters; the analysis system establishes a mapping relation between the working condition parameters and a fault development process based on the historical characteristic parameters; and updating the mapping relation to an expert system. Failure prediction parameters for an electronic throttle of the vehicle may subsequently be obtained based on the expert system. With the configuration, the change rule of the characteristic parameter before the fault occurs can be known through the correlation characteristic of the historical data in the fault development process, so that a user can be reminded when the fault does not occur, and the problem that the diagnosis function of the electronic throttle valve in the prior art has hysteresis in fault identification is solved.

Drawings

It will be appreciated by those skilled in the art that the drawings are provided for a better understanding of the invention and do not constitute any limitation to the scope of the invention. Wherein:

FIG. 1 is a schematic flow diagram of an electronic throttle status management method according to an embodiment of the invention;

FIG. 2 is a schematic flow chart of a method for managing the state of an electronic throttle valve according to an embodiment of the invention.

In the drawings:

1-an EMS system; 2-electronic throttle status management method; 3-an analytical system; 4-expert system.

Detailed Description

To further clarify the objects, advantages and features of the present invention, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. It is to be noted that the drawings are in greatly simplified form and are not to scale, but are merely intended to facilitate and clarify the explanation of the embodiments of the present invention. Further, the structures illustrated in the drawings are often part of actual structures. In particular, the drawings may have different emphasis points and may sometimes be scaled differently.

As used in this application, the singular forms "a", "an" and "the" include plural referents, the term "or" is generally employed in a sense including "and/or," the terms "a" and "an" are generally employed in a sense including "at least one," the terms "at least two" are generally employed in a sense including "two or at least two," and the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, features defined as "first", "second" and "third" may explicitly or implicitly include one or at least two of the features, "one end" and "the other end" and "proximal end" and "distal end" generally refer to the corresponding two parts, which include not only the end points, but also the terms "mounted", "connected" and "connected" should be understood broadly, e.g., as a fixed connection, as a detachable connection, or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. Furthermore, as used in the present invention, the disposition of an element with another element generally only means that there is a connection, coupling, fit or driving relationship between the two elements, and the connection, coupling, fit or driving relationship between the two elements may be direct or indirect through intermediate elements, and cannot be understood as indicating or implying any spatial positional relationship between the two elements, i.e., an element may be in any orientation inside, outside, above, below or to one side of another element, unless the content clearly indicates otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The core idea of the invention is to provide a method, a system, a server and a storage medium for managing the state of an electronic throttle valve, so as to solve the problem that the diagnosis function of the electronic throttle valve in the prior art has hysteresis in fault identification.

The following description refers to the accompanying drawings.

Referring to fig. 1 to fig. 2, fig. 1 is a schematic flow chart illustrating an electronic throttle status management method according to an embodiment of the invention; FIG. 2 is a schematic flow chart of a method for managing the state of an electronic throttle valve according to an embodiment of the invention.

As shown in fig. 1, the present embodiment provides an electronic throttle state management method 2, the electronic throttle state management method 2 including an updating method S10, the updating method S10 including:

s11, acquiring and storing characteristic parameters of electronic throttles of at least two vehicles, wherein the characteristic parameters comprise working condition parameters and fault diagnosis parameters;

s12, the analysis system 3 establishes a mapping relation between the working condition parameters and the fault development process based on the historical characteristic parameters; and the number of the first and second groups,

and S13, updating the mapping relation to the expert system 4.

The inventors have concluded the following through studies on the mechanism of the electronic throttle failure generation. When the electronic throttle valve is about to fail, the characteristic parameters are changed, and the changes contain information of the fault development process. In order to extract the mapping relationship between the operating condition parameters and the fault development process, the historical characteristic parameters need to be analyzed first, and the characteristic parameters are recalized from the time point of the fault occurrence, so that the change of the characteristic parameters caused by noise, errors and the like is distinguished from the change caused by the fault imminent occurrence. And simultaneously, eliminating statistical deviation through mutual verification of the characteristic parameters of a plurality of vehicles, thereby obtaining the mapping relation between the working condition parameters and the fault development process. The mapping relationship may be understood as a prediction model, and when the operating condition parameters are input into the prediction model, the preset model outputs relevant parameters for characterizing the fault development process.

After the mapping relation is updated to the expert system 4, the expert system 4 stores the information of the change rule of the working condition parameters in the fault development process of the electronic throttle valve, so that the future occurrence time of the fault can be predicted in advance. Therefore, the problem that the diagnosis function of the electronic throttle valve in the prior art has hysteresis in fault identification is solved. Of course, the expert system can also perform routine analysis of electronic throttles that have failed to meet the user's other needs. The updating method S10 also ensures timeliness and sufficient query scope of the expert system 4 by continuously updating the mapping relationship in the expert system 4.

Further, the electronic throttle status management method 2 further includes a query method S20, and the query method S20 includes:

s21, acquiring the working condition parameters of a single vehicle;

s22, if the working condition parameters are in the query range, the expert system 4 obtains the fault prediction parameters of the electronic throttle valve of the vehicle based on the working condition parameters;

s23, if the working condition parameter is not in the query range, the analysis system 3 outputs an active control instruction based on the working condition parameter, and obtains the characteristic parameter of the vehicle when the vehicle responds to the active control instruction; and the number of the first and second groups,

s24, the analysis system 3 obtains the fault prediction parameters based on the newly obtained working condition parameters.

In steps S22 and S23, the query range is related to the parameter range related to the historical data, and it can be understood that, based on the effectiveness consideration of the data statistics, the query range excludes some isolated data that cannot be judged to be effective, so that the query range is smaller than the parameter range related to the historical data. Meanwhile, with the continuous operation of the updating method S10, the query range is gradually expanded and finally covers all parameter ranges that the electronic throttle valve can theoretically reach. In step S23, the active control command is generated based on the current parameter condition, which will be described in more detail later in this specification. The step of outputting the active control command comprises: confirming whether the vehicle is currently in a safe state or not, wherein the safe state comprises a parking flameout state; and if the vehicle is in a safe state, outputting the active control instruction. In step S24, referring to fig. 2, the analysis system performs analysis procedures such as fault data analysis, fault mode diagnosis, fault cause inference, and fault trend prediction, so as to obtain the fault prediction parameters. So configured, the query method S20 may still be guaranteed to obtain the fault prediction parameters under special conditions.

Further, in some embodiments, the query method S20 further includes S25 the analysis system 3 obtaining a new mapping relationship based on the newly obtained operating condition parameters, and the new mapping relationship is updated to the expert system 4.

Based on the updating method S10 and the querying method S20, the electronic throttle state management method 2 provided in this embodiment can better analyze the health state of the electronic throttle, assist in quickly positioning the cause of the problem after the fault occurs, identify the quality risk before the problem occurs in the electronic throttle, and predict the severity and potential impact of the related risk; by using the service, necessary vehicle using, maintenance and other advice information can be provided for a driver, so that the vehicle owner is helped to actively avoid the problem risk of the electronic throttle; or help OEM (Original Industrial factory, also refers to the whole car factory), maintenance shop, etc. to better manage quality problems, provide maintenance service, etc., and have great practical value.

The fault prediction parameters include: fault status and fault type; wherein the selectable values of the fault condition include: no fault, faulty and impending fault; when the fault condition is an impending fault, the fault parameters further include a predicted value characterizing a future time at which the fault occurred. Alternative forms of the predicted value include time, mileage, etc., and may also be expressed in terms of percentage progress. In an embodiment, the specific content of the fault state is: { impending failure, response delay, 30% }. So configured, it is possible to provide effective information so that the user avoids using the vehicle when the time of occurrence of the malfunction of the electronic throttle valve is close; and the method can also be helpful for users to adjust driving habits and increase the service life of the electronic throttle.

Preferably, the fault diagnosis parameter is obtained based on at least one of motor drive level diagnosis, position sensor circuit diagnosis, electronic throttle valve dynamic response capability diagnosis, control PWM (Pulse Width Modulation) range diagnosis, and safety monitoring diagnosis.

The working condition parameters comprise: controlling at least one of a signal statistical indicator, an environmental condition parameter, and a fault impact parameter;

the control signal statistical indexes comprise probability density of position sensor signals, probability density of pulse width modulation signals, proportion of the position sensor signals exceeding a first preset value, and proportion of the pulse width modulation signals exceeding a second preset value;

the environment working condition parameters comprise environment temperature, environment humidity and weather index data; and the number of the first and second groups,

the fault influence parameters comprise vehicle acceleration performance, idling speed, idling stability and air leakage self-learning values.

In an embodiment, the query method S20 further includes: s27 outputs the service parameters to the service application. The service parameters may include the failure prediction parameters and may also include parameters required by other service applications.

The electronic throttle state management method 2 described above can also be understood in accordance with fig. 2. As shown in fig. 2, the electronic throttle state management method 2 interacts with the EMS system 1 to achieve a complete function.

The electronic throttle state management method 2 is composed of functions of data storage, analysis, an expert system, service application and the like, and is matched with application functions of service data storage, HMI (Human Machine Interface) display and the like to realize the health management of the electronic throttle. The electronic throttle state management method 2 can achieve the following beneficial effects:

1. electronic throttle health related historical data storage. The electronic throttle state management method 2 configures an electronic throttle historical data storage function, and can store the characteristic parameters related to health into a database, and the content of specific data can refer to the related content in the foregoing description.

2. The characteristic parameters can be extracted as required. Compared with the traditional EMS function, the electronic throttle valve can be internally provided with a test function for setting the acquisition of the characteristic parameters. If the PWM distribution of the electronic throttle is influenced by the driving behavior of the vehicle owner, the analysis precision of the electronic throttle is limited based on the data recovered under the real driving working condition, and after the electronic throttle state management method 2 is introduced, the electronic throttle can be controlled to operate according to the set working condition spectrum through an active test function (namely an active control instruction in the foregoing), and the characteristic indexes related to PWM are extracted based on the current operating condition, so that the operation of the electronic throttle can be ensured not to be interfered by external factors such as the driver and the like, and the extraction of the characteristic data with higher precision is realized.

3. The analysis capability performance is better. Due to stronger data acquisition and storage capacity and data calculation capacity, the system can evaluate the health state of the electronic throttle more finely; a more refined classification of health status can be provided compared to an OBD (On Board Diagnostics) function which only provides binary indication of health/failure; the expert system 4 can be updated in time by combining the statistical conditions of the indexes of the same kind of data, and the root causes of the faults can be analyzed in more detail based on the statistical conditions; and predicting the fault development process of the electronic throttle valve based on the characteristic parameter change rule and the historical data of the electronic throttle valve sample of each vehicle.

4. The expert system 4 can be updated in time. The specific failure mode of the electronic throttle valve and design parameters, working environment, vehicle usage habits of vehicle owners and the like are all closely related, the fault data analysis function of the analysis system 3 can perform statistical analysis on the fault types and key influence factors of the products, and based on the fault data analysis function, common failure modes, external characteristic expressions, fault development influence key influence factors and the like of the throttle valve are identified, and related information is updated to the expert system 4 in the form of data, models and the like. The expert system 4 information can be further combined with functions of fault diagnosis, fault reason reasoning, fault prediction and the like to provide support for each service application.

5. Enhancing service application capabilities. The related information of the electronic throttle state management method 2 can support more powerful service application, such as supporting human-computer interaction access, and push suggestion information for a driver by combining the expert system 4 and the characteristic parameters; or storing the related result data to support secondary development application of other applications or systems.

The key functions referred to in fig. 2 are explained in detail below.

1. Electronic throttle control: the control method is the same as the traditional strategy by adopting a PID (proportion integration differentiation) control method, and the torque of the motor is adjusted by adjusting the PWM (pulse width modulation) of a motor control signal, so that the electronic throttle cover plate is controlled to different positions;

2. and (3) active test function: the new function which is built in the EMS and specially deployed for matching with the new characteristic parameter extraction needs to be matched with the active control instruction for activation. In combination with the foregoing description, if it is desired to extract the PWM distribution characteristics of the electronic throttle during independent operation, it is necessary to design the active test function as a response-type test logic. When an activation demand instruction issued by the electronic throttle state management method 2 is received, external conditions (such as vehicle stop, engine not started, gearbox in P gear and the like) required by the function activation are checked, and the electronic throttle is controlled to operate according to a set working condition spectrum according to set logic after the conditions are confirmed to be met.

3. And local feature extraction. The function belongs to the field of edge calculation, and data features meeting the health management requirements are extracted based on data generated when functions such as normal operation of the electronic throttle valve, active testing and the like are activated. If the active test function is activated, the interval distribution value is evaluated based on the PWM signal generated in the operation process and then uploaded to the health management system; and estimating the air leakage amount of the electronic throttle valve based on the electronic throttle valve and engine air system indexes.

4. And (3) historical data storage: the characteristic parameters are mainly stored, and necessary label data, environment working condition data and the like are added. Such as test time, ambient temperature, ambient weather, and data content of vehicle GPS (Global Positioning System).

5. Analyzing fault data; and extracting the fault related data of the electronic throttle valve based on historical data, such as high-frequency fault types, fault occurrence working points, occurrence environments, fault expression characteristics and the like of the similar monitoring products, and recording related results into the expert system 4 in the modes of statistical data, models and the like.

6. And (3) fault mode diagnosis: evaluating whether the electronic throttle valve has a fault risk at present and the fault type of the electronic throttle valve;

7. reasoning the fault reason: the root cause of the failure is identified when it exists. If the electronic throttle valve is found to have a problem of slow response, the function can identify whether the fault is caused by the aging of the motor performance or by the jamming of external foreign matter. This function needs to be combined with data feature acquisition, as described in detail below; the generated result data can further support the prediction of the failure trend or be directly used for supporting the maintenance of vehicle problems, such as providing services of quickly positioning failure causes and the like.

8. Data feature acquisition/test program management: when fault reason reasoning is carried out, if the current recovered data features are found to be insufficient and an active test function needs to be activated to extract necessary new feature parameters, the feature data acquisition module is used for identifying the content of required data, a test request instruction is sent to the EMS system 1 based on the test data of the electronic throttle state management method 2, and the active test function is activated;

9. predicting the failure trend: for failures of types such as motor aging and electronic throttle accumulated carbon, the development process of the failures belongs to a gradual change type, when failures of related types are identified, the subsequent development trend of the failures can be predicted through a fault trend prediction function, and data contents such as the remaining time and mileage of the failures are identified from a set failure threshold value.

10. Service application: the relevant data generated by the health management system can support the terminal vehicle owner to better manage the vehicle, and can also support manufacturers such as OEMs to make product quality control, or support maintenance organizations such as 4S (Sale whole vehicle sales, spare and accessory parts, Service after-Sale Service and Survey information feedback) shops to make maintenance arrangement and the like. The specific implementation is completed through the cooperation of service application functions.

The embodiment also provides a server, wherein the server is used for acquiring and storing the characteristic parameters of the electronic throttles of at least two vehicles, and the characteristic parameters comprise working condition parameters and fault diagnosis parameters;

the server is provided with an analysis system, and the analysis system is used for establishing a mapping relation between the working condition parameters and a fault development process based on historical characteristic parameters;

the server is also used for updating the mapping relation to an expert system.

The embodiment provides a management system, the management system comprises a terminal and the server, the terminal is in communication connection with the server, and the expert system 4 is arranged on the server or the terminal.

When the expert system 4 is arranged on the server, the terminal is used for acquiring the working condition parameters of a single vehicle and sending the working condition parameters to the server, and the terminal is also used for receiving the fault prediction parameters sent by the server. When the expert system 4 is arranged at the terminal, the terminal is used for obtaining the working condition parameters of a single vehicle and obtaining the fault prediction parameters based on the expert system 4.

It is to be understood that the device for acquiring the history data (i.e., the stored characteristic parameters of the electronic throttles of at least two vehicles) may be the terminal described above, or may be another terminal, and the description is not limited as to whether the terminal has the function of acquiring the history data.

The terminal can be arranged in a vehicle, a mobile intelligent device or a vehicle maintenance factory.

Other elements and other working logics of the terminal and the server can be set by those skilled in the art according to the common general knowledge, and are not described herein.

The present embodiment also provides a storage medium storing a program that, when running, executes the electronic throttle state management method described above.

The server, the management system and the storage medium can obtain the mapping relation between the working condition parameters and the fault development process based on historical data, so that the problem of delay of prediction results can be solved.

In summary, in the electronic throttle status management method 2, the system, the server and the storage medium provided by the present invention, the electronic throttle status management method includes an updating method, and the updating method includes: acquiring and storing characteristic parameters of electronic throttles of at least two vehicles, wherein the characteristic parameters comprise working condition parameters and fault diagnosis parameters; the analysis system 3 establishes a mapping relation between the working condition parameters and a fault development process based on the historical characteristic parameters; and the mapping relationship is updated to the expert system 4. Failure prediction parameters for the electronic throttle of the vehicle may subsequently be obtained based on the expert system 4. With the configuration, the change rule of the characteristic parameter before the fault occurs can be known through the correlation characteristic of the historical data in the fault development process, so that a user can be reminded when the fault does not occur, and the problem that the diagnosis function of the electronic throttle valve in the prior art has hysteresis in fault identification is solved.

The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art according to the above disclosure are within the scope of the present invention.