CN114705414A

CN114705414A - Method and device for determining position credibility of electric control valve and vehicle

Info

Publication number: CN114705414A
Application number: CN202210284553.9A
Authority: CN
Inventors: 赵建永; 田占勇; 臧超; 王祥; 高更; 程晓宇
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-07-05

Abstract

The application provides a method and a device for determining the position credibility of an electric control valve and a vehicle, wherein the method comprises the following steps: acquiring a first effective opening value and a second effective opening value of multiple power-on processes; calculating the average value of first effective opening values meeting first preset conditions to obtain a first initial opening value, and calculating the average value of second effective opening values meeting the first preset conditions to obtain a second initial opening value; acquiring the number of first position error values larger than a first calibration value to obtain a first abnormal frequency, acquiring the number of second position error values larger than a second calibration value to obtain a second abnormal frequency, wherein the first position error value is the difference value between a first effective opening value and a first initial opening value, and the second position error value is the difference value between a second effective opening value and a second initial opening value; and determining whether the position of the electrically controlled valve is credible according to the first abnormality times and the second abnormality times. The method solves the problem that the position of the electric control valve cannot be automatically judged whether to be credible or not in the prior art.

Description

Method and device for determining position credibility of electric control valve and vehicle

Technical Field

The application relates to the engine technology, in particular to a method for determining credibility of position of an electronic control valve, a determining device, a computer readable storage medium, a processor and a vehicle.

Background

At present, various valves of the engine are checked only after faults are reported. It is generally found that damage to the component parts and hence direct replacement results in economic loss to the user.

The above information disclosed in this background section is only for enhancement of understanding of the background of the technology described herein and, therefore, certain information may be included in the background that does not form the prior art that is already known in this country to a person of ordinary skill in the art.

Disclosure of Invention

The application mainly aims to provide a method for determining credibility of an electric control valve position, a determining device, a computer readable storage medium, a processor and a vehicle, so as to solve the problem that whether the electric control valve position is credible or not cannot be automatically judged in the prior art.

According to an aspect of an embodiment of the present invention, there is provided a method of determining the position reliability of an electrically controlled valve of an engine, the engine including an electrically controlled valve, the electrically controlled valve being a valve that controls an intake air rate of the engine, the method including: when the engine is in a standard working condition, acquiring a first effective opening value and a second effective opening value of a plurality of power-on processes of the engine, wherein the first effective opening value corresponds to the power-on processes one by one, the second effective opening value corresponds to the power-on processes one by one, the first effective opening value is an average value of a plurality of first opening values in one power-on process, the second effective opening value is an average value of a plurality of second opening values in one power-on process, the first opening value is an opening value of the electric control valve when the valve is in a fully-open position, and the second opening value is an opening value of the electric control valve when the valve is in a fully-closed position; calculating the average value of the first effective opening values meeting a first preset condition to obtain a first initial opening value, and calculating the average value of the second effective opening values meeting the first preset condition to obtain a second initial opening value, wherein the first preset condition is that the running time of the engine is less than a preset time and the running mileage of the engine is less than a preset mileage in the power-on process; acquiring the number of first position error values larger than a first calibration value to obtain a first abnormal frequency, acquiring the number of second position error values larger than a second calibration value to obtain a second abnormal frequency, wherein the first position error value is the difference value between the first effective opening value and the first initial opening value, and the second position error value is the difference value between the second effective opening value and the second initial opening value; and determining whether the position of the electric control valve is credible according to the first abnormal times and the second abnormal times.

Optionally, the obtaining a first effective opening value and a second effective opening value of multiple power-on processes includes: an obtaining step, obtaining a plurality of first opening values and a plurality of second opening values in one power-on process; removing a maximum value and a minimum value in the first opening values to obtain a plurality of first target opening values, and removing a maximum value and a minimum value in the second opening values to obtain a plurality of second target opening values; calculating an average value of the plurality of first target opening values to obtain a first effective opening value, and calculating an average value of the plurality of second target opening values to obtain a second effective opening value; repeating the obtaining step, the removing step and the calculating step at least once in sequence until a predetermined number of the first effective opening values and a predetermined number of the second effective opening values are obtained.

Optionally, the engine further includes a battery, the standard condition is a condition that the engine simultaneously satisfies a first condition, a second condition and a third condition, the first condition is that an ambient temperature of the engine is greater than a third calibration value, the second condition is that a voltage of the battery is greater than a fourth calibration value, and the third condition is that the electric control valve operates without a fault.

Optionally, obtaining the number of the first position error values larger than the first calibration value to obtain a first abnormal frequency, obtaining the number of the second position error values larger than the second calibration value to obtain a second abnormal frequency, includes: a counting step of adding one to the first abnormal number when a first counting condition is satisfied, keeping the first abnormal number unchanged when the first counting condition is not satisfied, adding one to the second abnormal number when a second counting condition is satisfied, keeping the second abnormal number unchanged when the second counting condition is not satisfied, the first counting condition being that the first position error value is greater than the first calibration value, and the second counting condition being that the second position error value is greater than the second calibration value; judging, namely judging whether the first abnormal frequency is greater than a first preset value or not, and judging whether the second abnormal frequency is greater than a second preset value or not; and repeating the counting step and the judging step at least once in sequence until the first abnormal frequency is greater than the first preset value or the second abnormal frequency is greater than the second preset value.

Optionally, determining whether the electronically controlled valve position is authentic according to the first abnormality number and the second abnormality number comprises: determining that the position of the electrically controlled valve is not credible under the condition that the first abnormal frequency is larger than the first preset value and/or the second abnormal frequency is larger than the second preset value; and determining that the position of the electrically controlled valve is credible under the condition that the first abnormal frequency is less than or equal to the first preset value and the second abnormal frequency is less than or equal to the second preset value.

Optionally, after determining whether the electronically controlled valve position is authentic according to the first abnormality number and the second abnormality number, the method further comprises: and clearing the first abnormal times and the second abnormal times under the condition of meeting a second preset condition and/or a third preset condition, wherein the second preset condition is that the position of the electric control valve is not credible, and the third preset condition is that the power-on times are greater than the preset times.

According to another aspect of the embodiments of the present invention, there is also provided a device for determining the position reliability of an electrically controlled valve of an engine, the engine including an electrically controlled valve that is a valve that controls an intake air rate of the engine, the device including: the first obtaining unit is used for obtaining a first effective opening value and a second effective opening value of a plurality of power-on processes of the engine under a standard working condition, wherein the first effective opening value corresponds to the power-on processes one by one, the second effective opening value corresponds to the power-on processes one by one, the first effective opening value is an average value of a plurality of first opening values in one power-on process, the second effective opening value is an average value of a plurality of second opening values in one power-on process, the first opening value is an opening value of the electric control valve when the valve is in a fully-open position, and the second opening value is an opening value of the electric control valve when the valve is in a fully-closed position; the calculation unit is used for calculating the average value of the first effective opening values meeting a first preset condition to obtain a first initial opening value, calculating the average value of the second effective opening values meeting the first preset condition to obtain a second initial opening value, wherein the first preset condition is that the running time of the engine is less than a preset time and the running mileage of the engine is less than a preset mileage; a second obtaining unit, configured to obtain the number of first position error values greater than a first calibration value, to obtain a first abnormal frequency, and obtain the number of second position error values greater than a second calibration value, to obtain a second abnormal frequency, where the first position error value is a difference between the first effective opening value and the first initial opening value, and the second position error value is a difference between the second effective opening value and the second initial opening value; and the determining unit is used for determining whether the position of the electronic control valve is credible according to the first abnormality times and the second abnormality times.

According to still another aspect of embodiments of the present invention, there is also provided a computer-readable storage medium including a stored program, wherein the program executes any one of the methods.

According to another aspect of the embodiments of the present invention, there is also provided a processor, configured to execute a program, where the program executes any one of the methods.

There is also provided, in accordance with an aspect of an embodiment of the present invention, a vehicle including an engine, one or more processors, a memory, the engine including electronically controlled valves and a battery, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs including instructions for performing any of the methods.

In an embodiment of the present invention, in the method for determining the reliability of the position of the electrically controlled valve, first, when the engine is in a standard working condition, a first effective opening value and a second effective opening value of a plurality of power-on processes of the engine are obtained, where the first effective opening value corresponds to the power-on processes one to one, the second effective opening value corresponds to the power-on processes one to one, the first effective opening value is an average value of a plurality of first opening values in one power-on process, the second effective opening value is an average value of a plurality of second opening values in one power-on process, the first opening value is an opening value of the electrically controlled valve when the valve is in a fully open position, and the second opening value is an opening value of the electrically controlled valve when the valve is in a fully closed position; then, calculating an average value of the first effective opening values meeting a first preset condition to obtain a first initial opening value, calculating an average value of the second effective opening values meeting the first preset condition to obtain a second initial opening value, wherein the first preset condition is that the running time of the engine in the power-on process is less than a preset time and the running mileage of the engine is less than a preset mileage; then, obtaining the number of first position error values larger than a first calibration value to obtain a first abnormal frequency, obtaining the number of second position error values larger than a second calibration value to obtain a second abnormal frequency, wherein the first position error value is the difference value between the first effective opening value and the first initial opening value, and the second position error value is the difference value between the second effective opening value and the second initial opening value; and finally, determining whether the position of the electric control valve is credible according to the first abnormal frequency and the second abnormal frequency. According to the method, the opening value of the electric control valve in the current period is compared with the opening value in the new use period, the error value is larger than a calibration value, the position of the electric control valve at one time is recorded to be unreliable, a first abnormal frequency and a second abnormal frequency are recorded to reflect the number of times that the position of the electric control valve is unreliable, the first abnormal frequency is the number of times that the position of the electric control valve is completely opened and the second abnormal frequency is the number of times that the position of the electric control valve is completely closed, when the first abnormal frequency is larger than a first preset value and/or the second abnormal frequency is larger than a second preset value, the position of the electric control valve is determined to be unreliable, and the problem that whether the position of the electric control valve is reliable cannot be automatically judged in the prior art is solved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:

fig. 1 shows a flow chart of a method for determining the plausibility of a position of an electrically controlled valve according to an embodiment of the present application;

FIG. 2 is a flow chart illustrating a method for determining the plausibility of an electronically controlled valve position according to another exemplary embodiment of the present application;

fig. 3 shows a schematic diagram of a device for determining the plausibility of a position of an electrically controlled valve according to an embodiment of the present application.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. Also, in the specification and claims, when an element is described as being "connected" to another element, the element may be "directly connected" to the other element or "connected" to the other element through a third element.

For convenience of description, some terms or expressions referred to in the embodiments of the present application are explained below:

an ECU: the engine electronic control unit is a controller which performs calculation, processing and judgment according to signals input by various sensors and then outputs commands to control the action of an actuator.

Butterfly valve: through a circular butterfly sheet, the different rotations of butterfly sheet jackshaft are controlled to the aperture of control valve, and then control how much of airflow.

Poppet valve: the proportion of the hole plugging and the hole opening is controlled by controlling the up-and-down movement of the disc, so as to control the air flow.

As mentioned in the background of the invention, in order to solve the above problem, in the prior art, it is impossible to automatically determine whether the position of the electronically controlled valve is reliable, and in an exemplary embodiment of the present application, a method for determining the reliability of the position of the electronically controlled valve, a determining device, a computer-readable storage medium, a processor and a vehicle are provided.

According to an embodiment of the application, a method for determining the credibility of an electrically controlled valve position is provided.

Fig. 1 is a flow chart of a method for determining the credibility of the position of an electronically controlled valve according to an embodiment of the present application. As shown in fig. 1, the method comprises the steps of:

step S101, under the condition that the engine is in a standard working condition, acquiring a first effective opening value and a second effective opening value of the engine in multiple power-on processes, wherein the first effective opening value corresponds to the power-on processes one by one, the second effective opening value corresponds to the power-on processes one by one, the first effective opening value is an average value of a plurality of first opening values in one power-on process, the second effective opening value is an average value of a plurality of second opening values in one power-on process, the first opening value is an opening value of the electric control valve when the valve is in a fully-opened position, and the second opening value is an opening value of the electric control valve when the valve is in a fully-closed position;

step S102, calculating an average value of the first effective opening values meeting a first preset condition to obtain a first initial opening value, calculating an average value of the second effective opening values meeting the first preset condition to obtain a second initial opening value, wherein the first preset condition is that the running time of the engine in the power-on process is less than a preset time and the running mileage of the engine is less than a preset mileage;

step S103, obtaining the number of first position error values greater than a first calibration value to obtain a first abnormal frequency, obtaining the number of second position error values greater than a second calibration value to obtain a second abnormal frequency, where the first position error value is a difference between the first effective opening value and the first initial opening value, and the second position error value is a difference between the second effective opening value and the second initial opening value;

and step S104, determining whether the position of the electric control valve is credible according to the first abnormal frequency and the second abnormal frequency.

In the method for determining the reliability of the position of the electric control valve, first, when the engine is in a standard working condition, a first effective opening value and a second effective opening value of the engine in a plurality of power-on processes are obtained, wherein the first effective opening value corresponds to the power-on processes one by one, the second effective opening value corresponds to the power-on processes one by one, the first effective opening value is an average value of a plurality of first opening values in one power-on process, the second effective opening value is an average value of a plurality of second opening values in one power-on process, the first opening value is an opening value of the electric control valve when the valve is in a fully open position, and the second opening value is an opening value of the electric control valve when the valve is in a fully closed position; then, calculating an average value of the first effective opening values meeting a first preset condition to obtain a first initial opening value, calculating an average value of the second effective opening values meeting the first preset condition to obtain a second initial opening value, wherein the first preset condition is that the running time of the engine in the power-on process is less than a preset time and the running mileage of the engine is less than a preset mileage; then, obtaining the number of first position error values larger than a first calibration value to obtain a first abnormal frequency, obtaining the number of second position error values larger than a second calibration value to obtain a second abnormal frequency, wherein the first position error value is the difference value between the first effective opening value and the first initial opening value, and the second position error value is the difference value between the second effective opening value and the second initial opening value; and finally, determining whether the position of the electric control valve is credible according to the first abnormal frequency and the second abnormal frequency. According to the method, the opening value of the electric control valve in the current period is compared with the opening value in the new use period, the error value is larger than a calibration value, the position of the electric control valve at one time is recorded to be unreliable, a first abnormal frequency and a second abnormal frequency are recorded to reflect the number of times that the position of the electric control valve is unreliable, the first abnormal frequency is the number of times that the position of the electric control valve is completely opened and the second abnormal frequency is the number of times that the position of the electric control valve is completely closed, when the first abnormal frequency is larger than a first preset value and/or the second abnormal frequency is larger than a second preset value, the position of the electric control valve is determined to be unreliable, and the problem that whether the position of the electric control valve is reliable cannot be automatically judged in the prior art is solved.

It should be noted that the power-on process is a process in which the ECU controls the electronic control valve to perform multiple times of full-on and full-off operations.

The electrically controlled valve includes a valve for controlling the intake air rate of the engine, such as the butterfly valve and the poppet valve.

It should also be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than presented herein.

In an embodiment of the present application, obtaining a first effective opening value and a second effective opening value of a plurality of power-on processes includes: an obtaining step of obtaining a plurality of first opening values and a plurality of second opening values in a one-time power-on process; a removing step of removing a maximum value and a minimum value of the plurality of first opening values to obtain a plurality of first target opening values, and removing a maximum value and a minimum value of the plurality of second opening values to obtain a plurality of second target opening values; a calculation step of calculating an average value of a plurality of the first target opening values to obtain the first effective opening value, and calculating an average value of a plurality of the second target opening values to obtain the second effective opening value; repeating the obtaining step, the removing step and the calculating step at least once in sequence until a predetermined number of the first effective opening values and a predetermined number of the second effective opening values are obtained. In this embodiment, each first effective opening value is obtained by calculating an average value of a plurality of first target opening values, so each first effective opening value can objectively and accurately represent the opening value of the corresponding electrically-controlled valve in the power-on process when the electrically-controlled valve is in the fully-open position, and each second effective opening value is obtained by calculating an average value of a plurality of second target opening values, so each second effective opening value can objectively and accurately represent the opening value of the corresponding electrically-controlled valve in the power-on process when the electrically-controlled valve is in the fully-closed position.

In an embodiment of the present application, the engine further includes a battery, the standard operating condition is an operating condition where the engine simultaneously satisfies a first operating condition, a second operating condition, and a third operating condition, the first operating condition is that an ambient temperature where the engine is located is greater than a third calibration value, the second operating condition is that a voltage of the battery is greater than a fourth calibration value, and the third operating condition is that the electronic control valve operates without a fault. In this embodiment, the engine simultaneously satisfies the operating conditions of the first operating condition, the second operating condition, and the third operating condition, guarantees that engine and electric control valve are in normal stable running state in the process of electrifying at every turn, and then guarantees the accuracy of the first opening value and the second opening value measured in the process of electrifying at every turn, and the third calibration value and the fourth calibration value of different vehicles are different.

In an embodiment of the present application, obtaining the number of the first position error values greater than the first calibration value to obtain the first abnormal times, obtaining the number of the second position error values greater than the second calibration value to obtain the second abnormal times includes: a counting step of adding one to the first abnormal frequency when a first counting condition is satisfied, keeping the first abnormal frequency unchanged when the first counting condition is not satisfied, adding one to the second abnormal frequency when a second counting condition is satisfied, keeping the second abnormal frequency unchanged when the second counting condition is not satisfied, the first counting condition being that the first position error value is larger than the first calibration value, and the second counting condition being that the second position error value is larger than the second calibration value; a judging step, namely judging whether the first abnormal times are greater than a first preset value or not, and judging whether the second abnormal times are greater than a second preset value or not; and repeating the counting step and the judging step at least once in sequence until the first abnormal frequency is greater than the first preset value or the second abnormal frequency is greater than the second preset value. In this embodiment, first, the first abnormality number, which is recorded as the number of times that the fully-opened position of the electrically controlled valve is not authentic, is added by one in the case where the first count condition is satisfied, adding one to a second abnormal frequency by meeting a second counting condition, wherein the second abnormal frequency is recorded as the number of times that the fully-closed position of the electric control valve is not credible, and then, judging whether the number of times of the incredible fully-opened position of the electric control valve reaches the preset number of times of determining the incredible fully-opened position of the electric control valve after adding one to the first abnormal number of times every time, judging whether the number of times of the incredible fully-closed position of the electric control valve reaches the preset number of times of determining the incredible fully-closed position of the electric control valve after adding one to the second abnormal number of times every time, and till the first abnormal number of times is larger than the first preset value or the second abnormal number of times is larger than the second preset value.

In the first counting condition, the first position error value is an error value between the first effective opening value, that is, the opening value of the electronic control valve at the fully open position, and the first initial opening value, that is, the opening value of the electronic control valve at the fully open position in the new use period, in the first calibration value, the first position error value is an error value between the first effective opening value and the opening value of the electronic control valve at the fully open position in the new use period, in the second counting condition, the second position error value is an error value between the second effective opening value, that is, the opening value of the electronic control valve at the fully closed position, and the second initial opening value, that is, the opening value of the electronic control valve at the fully closed position in the new use period.

In an embodiment of the application, determining whether the position of the electronically controlled valve is authentic according to the first abnormality number and the second abnormality number includes: determining that the position of the electrically controlled valve is not credible under the condition that the first abnormal frequency is larger than the first preset value and/or the second abnormal frequency is larger than the second preset value; and determining that the position of the electric control valve is credible under the condition that the first abnormal frequency is less than or equal to the first preset value and the second abnormal frequency is less than or equal to the second preset value. In this embodiment, when the first abnormal number is greater than the first preset value and/or the second abnormal number is greater than the second preset value, that is, when the number of times of the implausible full-open position of the electronic control valve reaches the preset number of times of the implausible full-open position of the electronic control valve and/or the number of times of the implausible full-closed position of the electronic control valve reaches the preset number of times of the implausible full-closed position of the electronic control valve, it is determined that the position of the electronic control valve is not authentic, it is avoided that the full-open position of the electronic control valve is erroneously determined and it is avoided that the full-closed position of the electronic control valve is erroneously determined, when the first abnormal number is less than or equal to the first preset value, that is, it is determined that the number of times of the implausible full-open position of the electronic control valve does not reach the preset number of times of the implausible full-closed position of the electronic control valve, and determining that the position of the electric control valve is reliable.

In an embodiment of the application, after determining whether the position of the electronically controlled valve is authentic according to the first abnormality number and the second abnormality number, the method further includes: and clearing the first abnormal frequency and the second abnormal frequency under the condition of meeting a second preset condition and/or a third preset condition, wherein the second preset condition is that the position of the electric control valve is not credible, and the third preset condition is that the power-on frequency is greater than a preset frequency. In this embodiment, as shown in fig. 2, after determining that the position of the electrically controlled valve is not trusted, both the first abnormal number and the second abnormal number are cleared, and it is continuously determined whether there is a situation that the position of the electrically controlled valve is not trusted in the next power-on process group, where the next power-on process group includes a plurality of power-on processes, and when the power-on number is greater than the preset number, both the first abnormal number and the second abnormal number are cleared, so as to avoid misjudging the position of the electrically controlled valve as a result of an excessive power-on number.

The embodiment of the present application further provides a device for determining the credibility of the position of the electrically controlled valve, and it should be noted that the device for determining the credibility of the position of the electrically controlled valve according to the embodiment of the present application may be used to execute the method for determining the credibility of the position of the electrically controlled valve according to the embodiment of the present application. The following describes a device for determining the reliability of the position of an electronically controlled valve provided in the embodiments of the present application.

Fig. 3 is a schematic diagram of an apparatus for determining the plausibility of a position of an electronically controlled valve according to an embodiment of the present application. As shown in fig. 3, the apparatus includes:

a first obtaining unit 10, configured to obtain, when the engine is in a standard working condition, a first effective opening value and a second effective opening value of a plurality of power-on processes of the engine, where the first effective opening value corresponds to the power-on processes one to one, the second effective opening value corresponds to the power-on processes one to one, the first effective opening value is an average value of a plurality of first opening values in one power-on process, the second effective opening value is an average value of a plurality of second opening values in one power-on process, the first opening value is an opening value of the electrically controlled valve when the valve is in a fully open position, and the second opening value is an opening value of the electrically controlled valve when the valve is in a fully closed position;

a calculating unit 20, configured to calculate an average value of the first effective opening values satisfying a first preset condition to obtain a first initial opening value, and calculate an average value of the second effective opening values satisfying the first preset condition to obtain a second initial opening value, where the first preset condition is that an operation time of the engine is less than a preset time and an operation mileage of the engine is less than a preset mileage;

a second obtaining unit 30, configured to obtain the number of first position error values greater than a first calibration value to obtain a first abnormal frequency, and obtain the number of second position error values greater than a second calibration value to obtain a second abnormal frequency, where the first position error value is a difference between the first effective opening value and the first initial opening value, and the second position error value is a difference between the second effective opening value and the second initial opening value;

and the determining unit 40 is used for determining whether the position of the electric control valve is credible according to the first abnormality frequency and the second abnormality frequency.

In the apparatus for determining the reliability of the position of the electrically controlled valve, a first obtaining unit obtains, when the engine is in a standard working condition, a first effective opening value and a second effective opening value of a plurality of power-on processes of the engine, where the first effective opening value corresponds to the power-on processes one to one, the second effective opening value corresponds to the power-on processes one to one, the first effective opening value is an average value of a plurality of first opening values in one power-on process, the second effective opening value is an average value of a plurality of second opening values in one power-on process, the first opening value is an opening value of the electrically controlled valve when the valve is in a fully open position, and the second opening value is an opening value of the electrically controlled valve when the valve is in a fully closed position; a calculating unit, configured to calculate an average value of the first effective opening values satisfying a first preset condition to obtain a first initial opening value, and calculate an average value of the second effective opening values satisfying the first preset condition to obtain a second initial opening value, where the first preset condition is that an operation time of the engine is less than a preset time and an operation mileage of the engine is less than a preset mileage during the power-on process; a second obtaining unit, configured to obtain a number of first position error values greater than a first calibration value to obtain a first abnormal frequency, and obtain a number of second position error values greater than a second calibration value to obtain a second abnormal frequency, where the first position error value is a difference between the first effective opening value and the first initial opening value, and the second position error value is a difference between the second effective opening value and the second initial opening value; and the determining unit is used for determining whether the position of the electric control valve is credible according to the first abnormal frequency and the second abnormal frequency. The device records the unreliable position of the electric control valve at one time by comparing the opening value of the electric control valve at the current period with the opening value at the new use period, records the times of the unreliable position of the electric control valve at one time, records the first abnormal times and the second abnormal times to reflect the times of the unreliable position of the electric control valve, determines that the position of the electric control valve is unreliable at the full opening position of the electric control valve, and determines that the position of the electric control valve is unreliable when the first abnormal times are greater than the first preset value and/or the second abnormal times are greater than the second preset value, thereby solving the problem that the position of the electric control valve cannot be automatically judged to be reliable in the prior art.

In an embodiment of the application, the first obtaining unit includes an obtaining module, a removing module, a calculating module, and a first iteration module, where the obtaining module is configured to obtain a plurality of the first opening values and a plurality of the second opening values in a power-on process; the removing module is used for removing the maximum value and the minimum value in the plurality of first opening values to obtain a plurality of first target opening values, and removing the maximum value and the minimum value in the plurality of second opening values to obtain a plurality of second target opening values; the calculating module is configured to calculate an average value of the plurality of first target opening degrees to obtain the first effective opening degree, and calculate an average value of the plurality of second target opening degrees to obtain the second effective opening degree; the first iteration module is configured to repeat the obtaining step, the removing step, and the calculating step at least once in sequence until a predetermined number of the first effective opening values and a predetermined number of the second effective opening values are obtained. In this embodiment, each first effective opening value is obtained by calculating an average value of a plurality of first target opening values, so that each first effective opening value can objectively and accurately represent the opening value of the corresponding electrically-controlled valve in the power-on process when the electrically-controlled valve is in the fully open position, and each second effective opening value is obtained by calculating an average value of a plurality of second target opening values, so that each second effective opening value can objectively and accurately represent the opening value of the corresponding electrically-controlled valve in the power-on process when the electrically-controlled valve is in the fully closed position.

In an embodiment of the application, the second obtaining unit includes a counting module, a determining module, and a second iteration module, the counting module is configured to add one to the first abnormal count if a first counting condition is satisfied, add one to the first abnormal count if the first counting condition is not satisfied, add one to the second abnormal count if a second counting condition is satisfied, and add one to the second abnormal count if the second counting condition is not satisfied, where the first counting condition is that the first position error value is greater than the first calibration value, and the second counting condition is that the second position error value is greater than the second calibration value; the judging module is used for judging whether the first abnormal times are larger than a first preset value or not and judging whether the second abnormal times are larger than a second preset value or not; the second iteration module is configured to repeat the counting step and the determining step at least once in sequence until the first abnormal frequency is greater than the first preset value or the second abnormal frequency is greater than the second preset value. In this embodiment, first, the first abnormality count is incremented by one in the case where the first count condition is satisfied, the first abnormality count being recorded as the number of times that the fully-open position of the electrically controlled valve is not authentic, adding one to a second abnormal frequency by meeting a second counting condition, wherein the second abnormal frequency is recorded as the number of times that the fully-closed position of the electric control valve is not credible, and then, judging whether the number of times of the incredible fully-opened position of the electric control valve reaches the preset number of times of determining the incredible fully-opened position of the electric control valve after adding one to the first abnormal number of times every time, judging whether the number of times of the incredible fully-closed position of the electric control valve reaches the preset number of times of determining the incredible fully-closed position of the electric control valve after adding one to the second abnormal number of times every time, and till the first abnormal number of times is larger than the first preset value or the second abnormal number of times is larger than the second preset value.

In an embodiment of the application, the determining unit includes a first determining module and a second determining module, and the first determining module is configured to determine that the position of the electronically controlled valve is not reliable when the first abnormality number is greater than the first preset value and/or the second abnormality number is greater than the second preset value; the second determining module is configured to determine that the position of the electrically controlled valve is reliable when the first abnormal frequency is less than or equal to the first preset value and the second abnormal frequency is less than or equal to the second preset value. In this embodiment, when the first abnormal number is greater than the first preset value and/or the second abnormal number is greater than the second preset value, that is, when the number of times of the implausible full-open position of the electronic control valve reaches the preset number of times of the implausible full-open position of the electronic control valve and/or the number of times of the implausible full-closed position of the electronic control valve reaches the preset number of times of the implausible full-closed position of the electronic control valve, it is determined that the position of the electronic control valve is not authentic, it is avoided that the full-open position of the electronic control valve is erroneously determined and it is avoided that the full-closed position of the electronic control valve is erroneously determined, when the first abnormal number is less than or equal to the first preset value, that is, it is determined that the number of times of the implausible full-open position of the electronic control valve does not reach the preset number of times of the implausible full-closed position of the electronic control valve, and determining the position of the electric control valve to be credible.

In an embodiment of the application, the device for determining the reliability of the position of the electrically controlled valve further includes a zero clearing unit, where the zero clearing unit is configured to clear both the first abnormality number and the second abnormality number when a second preset condition and/or a third preset condition is met, the second preset condition is that the position of the electrically controlled valve is not reliable, and the third preset condition is that the power-on number is greater than a predetermined number. In this embodiment, as shown in fig. 2, after determining that the position of the electrically controlled valve is not trusted, both the first abnormal number and the second abnormal number are cleared, and it is continuously determined whether there is a situation that the position of the electrically controlled valve is not trusted in the next power-on process group, where the next power-on process group includes a plurality of power-on processes, and when the power-on number is greater than the preset number, both the first abnormal number and the second abnormal number are cleared, so as to avoid misjudging the position of the electrically controlled valve as a result of an excessive power-on number.

The device for determining the credibility of the position of the electric control valve comprises a processor and a memory, wherein the first acquiring unit, the calculating unit, the second acquiring unit, the determining unit and the like are stored in the memory as program units, and the processor executes the program units stored in the memory to realize corresponding functions.

The processor comprises a kernel, and the kernel calls the corresponding program unit from the memory. One or more than one kernel can be set, and the problem that whether the position of the electric control valve is credible cannot be automatically judged in the prior art is solved by adjusting kernel parameters.

The memory may include volatile memory in a computer readable medium, Random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM), and the memory includes at least one memory chip.

The embodiment of the invention provides a computer readable storage medium, which stores a program, and the program is executed by a processor to realize the method for determining the reliability of the position of the electric control valve.

The embodiment of the invention provides a processor, which is used for running a program, wherein the program executes the device and method for determining the credibility of the position of the electric control valve when running.

Embodiments of the present invention provide a vehicle comprising an engine, one or more processors, a memory, said engine comprising an electronically controlled valve and a battery, wherein said one or more programs are stored in said memory and configured to be executed by said one or more processors, said one or more programs comprising instructions for performing any of the above methods, said processors when executing said programs implementing at least the following steps:

step S102, calculating an average value of the first effective opening values meeting a first preset condition to obtain a first initial opening value, and calculating an average value of the second effective opening values meeting the first preset condition to obtain a second initial opening value, wherein the first preset condition is that the running time of the engine in the power-on process is less than a preset time and the running mileage of the engine is less than a preset mileage;

The device herein may be a server, a PC, a PAD, a mobile phone, etc.

The present application further provides a computer program product adapted to perform a program of initializing at least the following method steps when executed on a data processing device:

In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.

The integrated unit may be stored in a computer-readable storage medium if it is implemented in the form of a software functional unit and sold or used as a separate product. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a computer-readable storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned computer-readable storage media comprise: a U-disk, a Read-only memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.

From the above description, it can be seen that the above-mentioned embodiments of the present application achieve the following technical effects:

1) in the device for determining the reliability of the position of the electric control valve, first, when the engine is in a standard working condition, a first effective opening value and a second effective opening value of the engine in a plurality of power-on processes are obtained, wherein the first effective opening value corresponds to the power-on processes one by one, the second effective opening value corresponds to the power-on processes one by one, the first effective opening value is an average value of a plurality of first opening values in one power-on process, the second effective opening value is an average value of a plurality of second opening values in one power-on process, the first opening value is an opening value of the electric control valve when the valve is in a fully open position, and the second opening value is an opening value of the electric control valve when the valve is in a fully closed position; then, calculating an average value of the first effective opening values meeting a first preset condition to obtain a first initial opening value, calculating an average value of the second effective opening values meeting the first preset condition to obtain a second initial opening value, wherein the first preset condition is that the running time of the engine in the power-on process is less than a preset time and the running mileage of the engine is less than a preset mileage; then, obtaining the number of first position error values larger than a first calibration value to obtain a first abnormal frequency, obtaining the number of second position error values larger than a second calibration value to obtain a second abnormal frequency, wherein the first position error value is the difference value between the first effective opening value and the first initial opening value, and the second position error value is the difference value between the second effective opening value and the second initial opening value; and finally, determining whether the position of the electric control valve is credible according to the first abnormal frequency and the second abnormal frequency. According to the method, the opening value of the electric control valve in the current period is compared with the opening value in the new use period, the error value is larger than a calibration value, the position of the electric control valve at one time is recorded to be unreliable, a first abnormal frequency and a second abnormal frequency are recorded to reflect the number of times that the position of the electric control valve is unreliable, the first abnormal frequency is the number of times that the position of the electric control valve is completely opened and the second abnormal frequency is the number of times that the position of the electric control valve is completely closed, when the first abnormal frequency is larger than a first preset value and/or the second abnormal frequency is larger than a second preset value, the position of the electric control valve is determined to be unreliable, and the problem that whether the position of the electric control valve is reliable cannot be automatically judged in the prior art is solved.

2) In the device for determining the credibility of the position of the electric control valve, a first obtaining unit obtains a first effective opening value and a second effective opening value of the engine in multiple power-on processes under a standard working condition, wherein the first effective opening value corresponds to the power-on processes one by one, the second effective opening value corresponds to the power-on processes one by one, the first effective opening value is an average value of a plurality of first opening values in one power-on process, the second effective opening value is an average value of a plurality of second opening values in one power-on process, the first opening value is an opening value of the electric control valve when the valve is in a fully-opened position, and the second opening value is an opening value of the electric control valve when the valve is in a fully-closed position; a calculating unit, configured to calculate an average value of the first effective opening values satisfying a first preset condition to obtain a first initial opening value, and calculate an average value of the second effective opening values satisfying the first preset condition to obtain a second initial opening value, where the first preset condition is that an operation time of the engine is less than a preset time and an operation mileage of the engine is less than a preset mileage during the power-on process; a second obtaining unit, configured to obtain a number of first position error values greater than a first calibration value to obtain a first abnormal frequency, and obtain a number of second position error values greater than a second calibration value to obtain a second abnormal frequency, where the first position error value is a difference between the first effective opening value and the first initial opening value, and the second position error value is a difference between the second effective opening value and the second initial opening value; and the determining unit is used for determining whether the position of the electric control valve is credible according to the first abnormal frequency and the second abnormal frequency. The device records the unreliable position of the electric control valve at one time by comparing the opening value of the electric control valve at the current period with the opening value at the new use period, records the times of the unreliable position of the electric control valve at one time, records the first abnormal times and the second abnormal times to reflect the times of the unreliable position of the electric control valve, determines that the position of the electric control valve is unreliable at the full opening position of the electric control valve, and determines that the position of the electric control valve is unreliable when the first abnormal times are greater than the first preset value and/or the second abnormal times are greater than the second preset value, thereby solving the problem that the position of the electric control valve cannot be automatically judged to be reliable in the prior art.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method of determining the trustworthiness of an electronically controlled valve position, wherein an engine includes an electronically controlled valve, the electronically controlled valve being a valve that controls an intake air rate of the engine, the method comprising:

when the engine is in a standard working condition, acquiring a first effective opening value and a second effective opening value of a plurality of power-on processes of the engine, wherein the first effective opening value corresponds to the power-on processes one by one, the second effective opening value corresponds to the power-on processes one by one, the first effective opening value is an average value of a plurality of first opening values in one power-on process, the second effective opening value is an average value of a plurality of second opening values in one power-on process, the first opening value is an opening value of the electric control valve when the valve is in a fully-open position, and the second opening value is an opening value of the electric control valve when the valve is in a fully-closed position;

calculating an average value of the first effective opening values meeting a first preset condition to obtain a first initial opening value, and calculating an average value of the second effective opening values meeting the first preset condition to obtain a second initial opening value, wherein the first preset condition is that the running time of the engine is less than a preset time and the running mileage of the engine is less than a preset mileage in the power-on process;

acquiring the number of first position error values larger than a first calibration value to obtain a first abnormal frequency, acquiring the number of second position error values larger than a second calibration value to obtain a second abnormal frequency, wherein the first position error value is the difference value between the first effective opening value and the first initial opening value, and the second position error value is the difference value between the second effective opening value and the second initial opening value;

and determining whether the position of the electric control valve is credible according to the first abnormal frequency and the second abnormal frequency.

2. The method of claim 1, wherein obtaining the first and second valid opening values for the plurality of power-up processes comprises:

an obtaining step, obtaining a plurality of first opening values and a plurality of second opening values in one power-on process;

removing a maximum value and a minimum value in the first opening values to obtain a plurality of first target opening values, and removing a maximum value and a minimum value in the second opening values to obtain a plurality of second target opening values;

calculating an average value of the plurality of first target opening values to obtain a first effective opening value, and calculating an average value of the plurality of second target opening values to obtain a second effective opening value;

repeating the obtaining step, the removing step and the calculating step at least once in sequence until a predetermined number of the first effective opening values and a predetermined number of the second effective opening values are obtained.

3. The method of claim 1, wherein the engine further comprises a battery, the standard operating condition is an operating condition in which the engine simultaneously satisfies a first operating condition, a second operating condition, and a third operating condition, the first operating condition is that an ambient temperature at which the engine is located is greater than a third calibrated value, the second operating condition is that a voltage of the battery is greater than a fourth calibrated value, and the third operating condition is that the electrically controlled valve operates without a fault.

4. The method of any one of claims 1 to 3, wherein obtaining the number of first position error values greater than the first calibration value to obtain a first anomaly number, and obtaining the number of second position error values greater than the second calibration value to obtain a second anomaly number comprises:

a counting step of adding one to the first abnormal number when a first counting condition is satisfied, keeping the first abnormal number unchanged when the first counting condition is not satisfied, adding one to the second abnormal number when a second counting condition is satisfied, keeping the second abnormal number unchanged when the second counting condition is not satisfied, the first counting condition being that the first position error value is greater than the first calibration value, and the second counting condition being that the second position error value is greater than the second calibration value;

judging, namely judging whether the first abnormal frequency is greater than a first preset value or not, and judging whether the second abnormal frequency is greater than a second preset value or not;

and repeating the counting step and the judging step at least once in sequence until the first abnormal frequency is greater than the first preset value or the second abnormal frequency is greater than the second preset value.

5. The method of claim 4, wherein determining whether the electronically controlled valve position is authentic based on the first number of anomalies and the second number of anomalies comprises:

determining that the position of the electrically controlled valve is not credible under the condition that the first abnormal frequency is larger than the first preset value and/or the second abnormal frequency is larger than the second preset value;

and determining that the position of the electrically controlled valve is credible under the condition that the first abnormal frequency is less than or equal to the first preset value and the second abnormal frequency is less than or equal to the second preset value.

6. The method of claim 1, wherein after determining whether the electronically controlled valve position is authentic based on the first number of anomalies and the second number of anomalies, the method further comprises:

and clearing the first abnormal times and the second abnormal times under the condition of meeting a second preset condition and/or a third preset condition, wherein the second preset condition is that the position of the electric control valve is not credible, and the third preset condition is that the power-on times are greater than the preset times.

7. An apparatus for determining the position reliability of an electrically controlled valve, wherein an engine includes an electrically controlled valve, said electrically controlled valve being a valve that controls the intake air rate of said engine, said apparatus comprising:

the first obtaining unit is used for obtaining a first effective opening value and a second effective opening value of a plurality of power-on processes of the engine under a standard working condition, wherein the first effective opening value corresponds to the power-on processes one by one, the second effective opening value corresponds to the power-on processes one by one, the first effective opening value is an average value of a plurality of first opening values in one power-on process, the second effective opening value is an average value of a plurality of second opening values in one power-on process, the first opening value is an opening value of the electric control valve when the valve is in a fully-open position, and the second opening value is an opening value of the electric control valve when the valve is in a fully-closed position;

the calculation unit is used for calculating the average value of the first effective opening values meeting a first preset condition to obtain a first initial opening value, calculating the average value of the second effective opening values meeting the first preset condition to obtain a second initial opening value, wherein the first preset condition is that the running time of the engine is less than a preset time and the running mileage of the engine is less than a preset mileage;

a second obtaining unit, configured to obtain the number of first position error values greater than a first calibration value, to obtain a first abnormal frequency, and obtain the number of second position error values greater than a second calibration value, to obtain a second abnormal frequency, where the first position error value is a difference between the first effective opening value and the first initial opening value, and the second position error value is a difference between the second effective opening value and the second initial opening value;

and the determining unit is used for determining whether the position of the electronic control valve is credible according to the first abnormality times and the second abnormality times.

8. A computer-readable storage medium, characterized in that the computer-readable storage medium comprises a stored program, wherein the program performs the method of any one of claims 1 to 6.

9. A processor, characterized in that the processor is configured to run a program, wherein the program when running performs the method of any of claims 1 to 6.

10. A vehicle comprising an engine, one or more processors, a memory, the engine comprising electronically controlled valves and a battery, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs comprising instructions for performing the method of any of claims 1-6.