CN117331366A

CN117331366A - Calibration method, device, equipment and medium for vehicle engine control system

Info

Publication number: CN117331366A
Application number: CN202311148802.2A
Authority: CN
Inventors: 颜培磊; 饶良武; 白振霄; 连学通
Original assignee: Guangzhou Automobile Group Co Ltd
Current assignee: Guangzhou Automobile Group Co Ltd
Priority date: 2023-09-06
Filing date: 2023-09-06
Publication date: 2024-01-02

Abstract

The embodiment of the application provides a calibration method, a calibration device, calibration equipment and calibration media for a vehicle engine control system. The method is applied to automatic calibration software, and the automatic calibration software asynchronously operates a working condition test program and a safety monitoring program, and comprises the following steps: in the working condition test program, executing operation test on each test working condition by adjusting control parameters of a simulation system corresponding to a vehicle engine control system, and executing parameter calibration after each test working condition reaches a test target; in the safety monitoring program, the magnitude relation between the real-time signal value of the monitoring simulation system and the monitoring limit value is monitored, a safety monitoring alarm zone bit is generated according to the monitoring result, and the safety monitoring alarm zone bit is sent to the working condition testing program, so that the working condition testing program controls the running testing process and the parameter calibration process of the self-executing testing working condition according to the safety monitoring alarm zone bit. The method can improve the safety monitoring capability in the working condition testing process.

Description

Calibration method, device, equipment and medium for vehicle engine control system

Technical Field

The application relates to the technical field of engine control system calibration, in particular to a calibration method, a calibration device, electronic equipment and a computer readable storage medium for a vehicle engine control system.

Background

In the technical field of engine control system calibration, conventional manual calibration, automatic calibration with higher automation degree and virtual calibration based on virtual controlled objects exist. The automatic calibration program can replace an operator to perform a test, and automatically monitor key information to ensure the safety of a vehicle engine, a power assembly and the whole vehicle, so that the automatic calibration program is widely applied.

In the current automatic calibration application process, the test working conditions and the control parameters of each test working condition are required to be determined in advance, the operation test is executed on each test working condition, and the parameter calibration is executed after each test working condition achieves the test target. When executing operation test on each test working condition, the component factors of the test working condition need to be adjusted one by one through a control variable method, one component factor is determined as a target factor each time, the target factor is adjusted through adjusting simulation system parameters, and the adjustment test of each target factor is executed in a circulating way until the adjustment test of all the target factors is achieved.

The prior art also carries out safety monitoring on the automatic calibration application process, but the safety monitoring steps are nested into the working condition test cycle, and after each round of the component factor adjustment cycle or parameter calibration cycle of the test working condition is executed, the safety monitoring is executed again, so that the problem of insufficient safety monitoring capability caused by low monitoring frequency exists.

Disclosure of Invention

To solve the above technical problems, embodiments of the present application provide a calibration method, a calibration device, an electronic device, and a computer-readable storage medium for a vehicle engine control system.

In a first aspect, an embodiment of the present application provides a calibration method for a vehicle engine control system, applied to automatic calibration software, in which a working condition test program and a safety monitoring program are asynchronously operated, the method includes: in the working condition test program, executing operation test on each test working condition by adjusting control parameters of a simulation system corresponding to the vehicle engine control system, and executing parameter calibration after each test working condition reaches a test target; and in the safety monitoring program, monitoring the magnitude relation between the real-time signal value of the simulation system and the monitoring limit value, generating a safety monitoring alarm zone bit according to a monitoring result, and sending the safety monitoring alarm zone bit to the working condition testing program so that the working condition testing program controls the running testing process and the parameter calibration process of executing the testing working condition according to the safety monitoring alarm zone bit.

In one embodiment of the present application, based on the foregoing solution, the performing an operation test on each test condition includes: performing operation tests of all the test working conditions in the working condition test set circularly until the operation tests of all the test working conditions are achieved; the process of executing the operation test of each test working condition comprises the following steps: identifying the composition factors of each test working condition in the working condition test set; and each time, taking one component factor as a target factor, presetting other component factors as target parameter values, and circularly executing the adjustment test of each target factor until the adjustment test of all the target factors is achieved.

In an embodiment of the present application, based on the foregoing solution, the operating condition test program controls an operation test process of a test operating condition executed by the operating condition test program according to the safety monitoring alarm flag bit, including: monitoring the value of the safety monitoring alarm zone bit in real time; when the safety monitoring alarm zone bit is monitored to be changed from the first value to the second value, the working condition pause zone bit is set to the second value, the safety monitoring alarm zone bit is continuously obtained, and the safety monitoring alarm counter is accumulated once when the safety monitoring alarm zone bit is changed from the second value to the first value; when the safety monitoring alarm flag bit is monitored to be a first value and the working condition pause flag bit is monitored to be a second value, the working condition pause flag bit is changed to be the first value so as to resume the running test of the execution test working condition; when the accumulated times of the safety monitoring alarm counter reach a limit value, the position of a current working condition abandon mark is set to be a second value; and when the position of the current working condition abandoning mark is monitored to be a second value, jumping to execute the operation test of the next testing working condition.

In one embodiment of the present application, based on the foregoing scheme, the method further includes: when the adjustment process of the last target factor corresponding to the current test working condition is executed, if the adjustment parameter for adjusting the last target factor exceeds a preset range, the position of the mark which cannot be achieved by the current working condition is set to be a second value; and when the fact that the mark position cannot be achieved to be the second value under the current working condition is monitored, executing the operation test of the next test working condition in a jumping mode.

In an embodiment of the present application, based on the foregoing solution, the operating mode test program controls a parameter calibration process of a test operating mode executed by the operating mode test program according to the safety monitoring alarm flag bit, and the parameter calibration process includes: monitoring the value of the safety monitoring alarm zone bit in real time; when the safety monitoring alarm zone bit is monitored to be changed from a first value to a second value, the safety monitoring alarm zone bit is continuously obtained, and when the safety monitoring alarm zone bit is changed from the second value to the first value, the safety monitoring alarm counter is accumulated once; when the safety monitoring alarm flag bit is monitored to be a first value and the working condition pause flag bit is monitored to be a second value, changing the working condition pause flag bit to be the first value so as to resume the parameter calibration of the execution test working condition; when the accumulated times of the safety monitoring alarm counter reach a limit value, the position of a current working condition abandon mark is set to be a second value; and when the position of the current working condition abandoning mark is monitored to be a second value, jumping to execute the operation test of the next testing working condition.

In one embodiment of the present application, based on the foregoing scheme, the method further includes: in the working condition test program, after each test working condition reaches a test target, judging whether to execute the parameter calibration; if yes, executing the parameter calibration and collecting working condition test data; if not, collecting working condition test data.

In one embodiment of the present application, based on the foregoing scheme, the method further includes: and if the safety monitoring alarm is triggered in the process of collecting the working condition test data, continuously collecting the working condition test data until the working condition test data is collected.

In a second aspect, an embodiment of the present application provides a calibration device for a vehicle engine control system, applied to automatic calibration software, in which a working condition test program and a safety monitoring program are asynchronously operated, the device includes: the operation test module is used for executing operation test on each test working condition by adjusting the control parameters of the simulation system corresponding to the vehicle engine control system in the working condition test program, and executing parameter calibration after each test working condition reaches a test target; and the safety monitoring module is used for monitoring the magnitude relation between the real-time signal value of the simulation system and the monitoring limit value in the safety monitoring program, generating a safety monitoring alarm zone bit according to a monitoring result, and sending the safety monitoring alarm zone bit to the working condition testing program so that the working condition testing program controls the running testing process and the parameter calibration process of the self-executing testing working condition according to the safety monitoring alarm zone bit.

In a third aspect, an embodiment of the present application provides an electronic device, including: one or more processors; and storage means for storing one or more programs which, when executed by the one or more processors, cause the electronic device to implement the method as described above.

In a fourth aspect, embodiments of the present application provide a computer-readable storage medium having stored thereon computer-readable instructions which, when executed by a processor of a computer, cause the computer to perform a method as described above.

In the technical scheme provided by the embodiment of the application:

setting an operating condition test program and a safety monitoring program of asynchronous operation in automatic calibration software, wherein the operating condition test program performs operation test on each test operating condition by adjusting control parameters of a simulation system, parameter calibration is performed after each test operating condition reaches a test target, the safety monitoring program monitors the magnitude relation between a signal value and a monitoring limit value of the simulation system in real time, a safety measure strategy is integrated into the safety monitoring program, and safety measures can be executed after safety monitoring and alarming, so that the frequency and timeliness of safety monitoring are improved; and the safety monitoring program also generates a corresponding safety monitoring alarm zone bit according to the monitoring result, and sends the generated safety monitoring alarm zone bit to the working condition testing program in real time, so that the working condition testing program can control the running test process and the parameter calibration process of the self-executed test working condition according to the safety monitoring alarm zone bit in real time, thereby improving the timeliness of executing safety measures in the automatic calibration running process and further improving the safety monitoring capability.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application. It is apparent that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art. In the drawings:

FIG. 1 is a schematic illustration of an application scenario for calibration of a vehicle engine control system, as shown in an exemplary embodiment of the present application;

FIG. 2 is a flow chart illustrating a calibration method for a vehicle engine control system according to an exemplary embodiment of the present application;

FIG. 3 is a flow chart of an exemplary operating condition test program performing an operating test for each test operating condition;

FIG. 4 is a flow chart of an exemplary operating condition test program performing parameter calibration for each test operating condition;

FIG. 5 is a flow chart of an exemplary security monitor performing security monitoring on a monitored object;

FIG. 6 is a schematic structural diagram illustrating a calibration device for a vehicle engine control system according to an exemplary embodiment;

fig. 7 is a schematic diagram of a computer system suitable for use in implementing embodiments of the present application.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.

The block diagrams depicted in the figures are merely functional entities and do not necessarily correspond to physically separate entities. That is, the functional entities may be implemented in software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.

The flow diagrams depicted in the figures are exemplary only, and do not necessarily include all of the elements and operations/steps, nor must they be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the order of actual execution may be changed according to actual situations.

Reference to "a plurality" in this application means two or more than two. "and/or" describes an association relationship of an association object, meaning that there may be three relationships, e.g., a and/or B may represent: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The terms "first," "second," "third," and "fourth" and the like in the description and in the claims of this application and in the drawings, are used for distinguishing between different objects and not for describing a particular sequential order. The terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

As described above, in the current automatic calibration process, the test conditions and the control parameters of each test condition need to be determined in advance, and the parameter calibration is performed after each test condition reaches the test target by performing the operation test on each test condition. When executing operation test on each test working condition, the component factors of the test working condition need to be adjusted one by one through a control variable method, one component factor is determined as a target factor each time, the target factor is adjusted through adjusting simulation system parameters, and the adjustment test of each target factor is executed in a circulating way until the adjustment test of all the target factors is achieved.

To solve the above-mentioned problems, the present embodiment provides a calibration method, a calibration device, an electronic device, and a computer-readable storage medium for a vehicle engine control system, which are described in detail below.

FIG. 1 is a schematic illustration of an application scenario for calibrating a vehicle engine control system according to an exemplary embodiment of the present application. As shown in fig. 1, the automatic calibration software 110 is installed on the terminal device 120, and the working condition testing program 111 and the safety monitoring program 112 running asynchronously are provided in the automatic calibration software 110, it is understood that the working condition testing program 111 and the safety monitoring program 112 running asynchronously in the automatic calibration software 110 mean that the two programs can run in parallel within the same time period without strict time dependency relationship. The user 130 operates in the terminal device 120, so that the automatic calibration software 110 automatically controls the running test process and the parameter calibration process of the test working conditions in the working condition test program 111 according to the safety monitoring alarm zone bit generated by the safety monitoring program 112, thereby realizing the automatic calibration of the vehicle engine control system through the automatic calibration software 110.

The terminal device 120 shown in fig. 1 may be any terminal device supporting installation of automatic calibration software, such as a smart phone, a vehicle-mounted computer, a tablet computer, a notebook computer, or a wearable device, but is not limited thereto.

FIG. 2 is a flow chart illustrating a calibration method for a vehicle engine control system according to an exemplary embodiment of the present application. As shown in fig. 2, in an exemplary embodiment, the calibration method for the vehicle engine control system at least includes steps S210 to S220, which are described in detail as follows:

step S210, in the working condition test program, executing operation test on each test working condition by adjusting control parameters of a simulation system corresponding to the vehicle engine control system, and executing parameter calibration after each test working condition reaches a test target.

Exemplary simulation systems for a vehicle engine control system include, for example, a vehicle engine control system, a complete vehicle hub control system, and a powertrain gantry control system. A vehicle engine control system is a system for monitoring and controlling the operation of a vehicle engine, the main functions of which are to ensure the normal operation of the vehicle engine, optimize fuel economy and reduce exhaust emissions; the system comprises a plurality of sensors, an actuator, a computing unit, a software algorithm and the like. The whole vehicle hub system is a device for testing and evaluating the whole vehicle, and comprises the components of a chassis dynamometer, a wheel rotating speed measuring system, a manipulation monitoring system and the like; the performance of the whole vehicle in aspects of a suspension system, a driving system, a transmission system and the like can be evaluated through the control monitoring of the vehicle. The power assembly rack control system is equipment for testing and evaluating a vehicle engine and a transmission system, and comprises a control unit, a load simulator, a data acquisition system and the like; the comprehensive performance test is carried out on the vehicle engine and the transmission system by simulating different test working conditions and load conditions so as to evaluate the indexes such as output power, fuel economy, reliability, emission and the like.

The mode of adjusting the corresponding simulation system of the vehicle engine control system comprises adjusting only the vehicle engine control system, adjusting only the whole vehicle hub control system, adjusting only the power assembly rack control system and adjusting the combination among the vehicle engine control system, the whole vehicle hub control system and the power assembly rack control system.

Before executing the operation test on each test working condition, a set of test working conditions is required to be acquired, wherein the set comprises the test working conditions requiring the operation test, respective composition factors of each test working condition and target parameter values preset for each composition factor. For example, the composition factors corresponding to the test working conditions 1, 2 and 3 are the rotation speed and the load, the preset target parameter values of the rotation speed and the load in the test working condition 1 are 1000% and 15% respectively, the preset target parameter values of the rotation speed and the load in the test working condition 2 are 1100% and 20% respectively, and the preset target parameter values of the rotation speed and the load in the test working condition 3 are 1200% and 25% respectively. It should be noted that, the composition factors corresponding to different test conditions may also be different, for example, the composition factor corresponding to the test condition 1 is a rotation speed and a load, and the composition factor corresponding to the test condition 2 is a rotation speed and an exhaust temperature.

Still by way of example, while performing the operation test on test condition 1, controlling the rotation speed to reach a target parameter value 1000, then adjusting the load until reaching the target parameter value 15%, and performing parameter calibration after the adjusted load reaches the target parameter value 15%; likewise, the control load reaches the target parameter value 15%, then the rotation speed is adjusted until reaching the target parameter value 1000, and parameter calibration is performed after the rotation speed reaches the target parameter value 1000. When the component factors in one test working condition are all adjusted and reach the target parameter value, the next test working condition is needed to be switched to continue the operation test until all the test working conditions in the test working condition set are tested.

In the working condition test program, after each test working condition reaches a test target, whether parameter calibration is executed is judged; if yes, parameter calibration is executed, and working condition test data are collected; if not, collecting working condition test data.

Further, the foregoing example is still used to illustrate that when the rotation speed and the load in the test condition 1 reach the target parameter values of 1000 and 15%, respectively, the test condition 1 achieves the test target; similarly, when the rotation speed and the load in the test working condition 2 reach the target parameter values 1100 and 20% respectively, the test working condition 2 is indicated to reach the test target.

After the test condition reaches the test target, determining whether to execute the parameter calibration of the engine control system based on the variable factors in the condition test program input by an operator in advance, if so, carrying out the parameter calibration of the engine control system under the condition that the condition abandoned flag bit and the condition unachievable flag bit are both the first values, and collecting the condition test data after the parameter calibration is completed; if the judgment is negative, the working condition test data are directly collected under the condition that the working condition gives up the flag bit and the working condition can not achieve the first value of the flag bit.

If the safety monitoring alarm is triggered in the process of collecting the working condition test data, the working condition test data are continuously collected until the working condition test data are collected.

Further, during the working condition test data acquisition process, the safety monitoring program still operates, and if the safety monitoring alarm is triggered during the acquisition process, the safety measure is still executed through the safety monitoring program, and the data acquisition process is continued until the current test working condition test data acquisition is completed. The test data can be analyzed and processed later by collecting the working condition test data, and a basis is provided for optimizing the performance of the engine, improving the fuel efficiency and the emission performance and the like. After the working condition test data of the current test working condition are collected, switching to the next test working condition to continue to execute the operation test.

Step S220, in the safety monitoring program, the magnitude relation between the real-time signal value of the simulation system and the monitoring limit value is monitored, a safety monitoring alarm zone bit is generated according to the monitoring result, and the safety monitoring alarm zone bit is sent to the working condition testing program, so that the working condition testing program controls the running testing process and the parameter calibration process of the self-executing testing working condition according to the safety monitoring alarm zone bit.

In the safety monitoring program, the simulation system is taken as a monitoring object, and the real-time signal value refers to real-time data or parameter values obtained from the simulation system, such as the real-time rotating speed of a vehicle engine, the real-time vehicle speed of the whole vehicle operation and the like; the monitored limits may include vehicle engine operating boundaries (e.g., maximum water temperature, maximum exhaust temperature at various locations in the exhaust system, maximum rotational speed, knock fade and duration, pre-ignition count limit, etc.), whole vehicle operating boundaries (e.g., power battery charge, maximum operating vehicle speed, minimum operating vehicle speed, etc.), and powertrain operating boundaries (e.g., power battery charge, transmission maximum operating rotational speed, etc.). In addition, the preset fixed value can be used as a monitoring limit value, for example, when the running speed of the whole vehicle is 120km/h at the highest and 20km/h at the lowest, the preset fixed values of 90km/h and 30km/h can be respectively used as the highest limit value and the lowest limit value of the running speed of the whole vehicle.

The magnitude relation between the real-time signal value and the monitoring limit value comprises that the real-time signal value exceeds the monitoring limit value and the real-time signal value does not exceed the monitoring limit value; the monitoring results include a first monitoring result and a second monitoring result. The safety monitoring program monitors a plurality of monitoring objects in the simulation system, for different monitoring objects, some monitoring objects are unsafe when the real-time signal value is larger than the monitoring limit value, and some monitoring objects are unsafe when the real-time signal value is smaller than the monitoring limit value, so that the real-time signal value exceeding the monitoring limit value is regarded as unsafe, and the real-time signal value not exceeding the monitoring limit value is regarded as safe. If the real-time signal value of one monitoring object in the plurality of monitoring objects exceeds the monitoring limit value, generating a second-value safety monitoring alarm zone bit; and if the real-time signal values of the plurality of monitoring objects do not exceed the respective monitoring limit values, generating a safety monitoring alarm zone bit of a first value.

It should be noted that, if there are two monitoring limits, for example, a maximum limit and a minimum limit of the running speed of the whole vehicle, for one monitoring object, when the real-time signal value of the running speed of the whole vehicle is between the minimum limit and the maximum limit, it is safe for the running speed of the whole vehicle; otherwise, the running speed of the whole vehicle is unsafe.

After the safety monitoring alarm zone bit is generated, the safety monitoring program sends the generated safety monitoring alarm zone bit to the working condition test program, so that the working condition test program can control the running test process and the parameter calibration process of executing the test working condition by itself according to the received safety monitoring alarm zone bit. The manner of control includes, but is not limited to, pausing, aborting, and jumping to the next test condition.

It can be seen from the above that, in this embodiment, by setting an operating condition test program and a safety monitoring program that operate asynchronously in automatic calibration software, the operating condition test program performs an operation test on each test operating condition by adjusting a control parameter of a simulation system, and performs parameter calibration after each test operating condition reaches a test target, the safety monitoring program monitors a magnitude relation between a signal value and a monitoring limit value of the simulation system in real time, and a safety measure policy is integrated into the safety monitoring program, and safety measures can be executed after safety monitoring and alarming, thereby improving frequency and timeliness of safety monitoring; and the safety monitoring program also generates a corresponding safety monitoring alarm zone bit according to the monitoring result, and sends the generated safety monitoring alarm zone bit to the working condition testing program in real time, so that the working condition testing program can control the running test process and the parameter calibration process of the self-executed test working condition according to the safety monitoring alarm zone bit in real time, thereby improving the timeliness of executing safety measures in the automatic calibration running process and further improving the safety monitoring capability.

In another exemplary embodiment, based on the method of FIG. 2, the operating condition test program performs an operating test for each test operating condition comprising:

and circularly executing the operation test of each test working condition in the working condition test set until the operation test of all the test working conditions is achieved.

The process of executing the operation test of each test working condition comprises the following steps:

identifying the composition factors of each test working condition in the working condition test set;

and each time, taking one component factor as a target factor, presetting other component factors as target parameter values, and circularly executing the adjustment test of each target factor until the adjustment test of all the target factors is achieved.

Further, the operation test sequence of each test working condition is preset in the working condition test set, and the operation test sequence is represented by a test working condition 1, a test working condition 2, a test working condition n, wherein the test working condition 1 refers to the test working condition of the first operation test, and the test working condition n refers to the test working condition of the nth operation test. Starting the operation test from the test working condition 1, and circularly executing until the operation is completed to the working condition test n, namely indicating that the operation test of all the test working conditions is achieved.

The composition factors are control parameters corresponding to a simulation system corresponding to a vehicle engine control system. And each time, taking one component factor as a target factor, presetting other component factors as target parameter values, and circularly executing the adjustment test of each target factor until the adjustment test of all the target factors is achieved.

Still by way of example, while performing the operation test on test condition 1, the rotational speed may be selected as a target factor and the load preset to a target parameter value of 15%, and then the rotational speed is subjected to the adjustment test until the rotational speed reaches the target parameter value of 1000; after the rotation speed is taken as a target factor, the load is taken as a target factor, the rotation speed is preset to be a target parameter value 1000, and then the load is subjected to a regulation test until the load reaches the target parameter value of 15%. When the component factors in the test working condition 1 are all completed as the target factors, the execution of the operation test by the test working condition 1 is completed.

The order of executing the adjustment test with respect to the constituent factors as target factors may be freely set, that is, the rotation speed may be set as the target factor and then the load may be set as the target factor, or the load may be set as the target factor and then the rotation speed may be set as the target factor.

Based on the operation executing process as exemplified above, the process of controlling the operation testing process of the self-executed testing working condition according to the safety monitoring alarm flag bit by the working condition testing program is as follows:

monitoring the value of a safety monitoring alarm zone bit in real time;

when the safety monitoring alarm zone bit is monitored to be changed from the first value to the second value, the working condition pause zone bit is taken as the second value, the safety monitoring alarm zone bit is continuously obtained, and the safety monitoring alarm counter is accumulated once when the safety monitoring alarm zone bit is changed from the second value to the first value;

when the safety monitoring alarm flag bit is monitored to be a first value and the working condition pause flag bit is monitored to be a second value, the working condition pause flag bit is changed to be the first value so as to resume the running test of the execution test working condition;

when the accumulated times of the safety monitoring alarm counter reach the limit value, the position of the current working condition abandon mark is set to be a second value;

when the position of the current working condition abandoning mark is monitored to be a second value, jumping to execute the operation test of the next testing working condition;

when the adjustment process of the last target factor corresponding to the current test working condition is executed, if the adjustment parameter for adjusting the last target factor exceeds a preset range, the position of the mark which cannot be achieved by the current working condition is set to be a second value;

And when the condition that the mark position cannot be reached to the second value is monitored, the operation test of the next test condition is jumped and executed.

Further, the security monitoring program monitors the generated value of the security monitoring alarm flag bit in real time, wherein the value of the security monitoring alarm flag bit comprises a first value and a second value. When the safety monitoring alarm flag bit is a first value, the safety monitoring alarm flag bit indicates that the test working condition operates and the test process is safe; and when the safety monitoring alarm flag bit is a second value, the safety monitoring alarm is performed when the safety monitoring alarm flag bit indicates that the test working condition operation test process is unsafe.

The working condition pause flag bit is used for indicating whether the test working condition operation test process is paused or not. The safety monitoring alarm counter is used for accumulating the times of safety monitoring alarm carried out in the running test process of the current test working condition. It should be noted that, the premise that the safety monitoring alarm counter is accumulated once is that the safety monitoring alarm flag bit is changed from the second value to the first value, which means that the safety monitoring alarm is triggered once before that and the safety measure is restored to the safety state, so that the safety monitoring alarm counter is accumulated once; rather than accumulating the safety monitoring alarm counter once when it is detected that the safety monitoring alarm flag bit changes from a first value to a second value.

When the safety monitoring alarm flag bit is monitored to be a first value and the working condition pause flag bit is monitored to be a second value, the working condition pause flag bit is changed to be the first value, so that the running test of the test working condition is resumed.

The current condition discard flag bit is used to indicate whether to discard execution of the running test for the current test condition. And when the accumulated times of the safety monitoring alarm counter reach a preset limit value, the position of the current working condition abandoning mark is set to be a second value.

The second value of the current operating condition abort flag is used to indicate that execution of the operating test on the current test operating condition is aborted. And after the running test is abandoned to be executed on the current test working condition, the running test is executed on the next test working condition in a jumping way.

The current working condition unachievable flag bit is used for indicating whether the current test working condition can be achieved. Still by way of example, when the rotational speed in test condition 1 is taken as the first target factor and the load is taken as the second target factor (i.e., the last target factor), if the simulated system parameter for adjusting the second target factor exceeds the prescribed limit, indicating that the second target factor cannot be adjusted to the target parameter value, the current condition fail to achieve the flag position is taken as the second value.

When the fact that the current working condition cannot reach the second value is detected, the current testing working condition cannot reach the second value, and the operation test of the next testing working condition is carried out in a jumping mode.

The process illustrated above may also be represented as a flow chart shown in fig. 3, where, as shown in fig. 3, when the working condition test program starts to run, a set of test working conditions after the test sequence is arranged, such as test working condition 1, test working condition 2, and test working condition n, where first, the working condition test is performed on test working condition 1, one component factor is selected as a target factor in test working condition 1, and other component factors are preset as target parameter values. After the target parameter value is selected, the target factor adjustment cycle is started, a safety monitoring alarm counter and a working condition pause flag bit are initialized, namely, the safety monitoring alarm count is adjusted to 0, and the working condition pause flag bit is 0. And then judging whether the selected target factors reach the target parameter values, if not, acquiring the safety monitoring alarm zone bit and judging whether the safety monitoring alarm zone bit is equal to 1. And if the safety monitoring alarm flag bit is equal to 1, the working condition pause flag bit is 1, and the value of the safety monitoring alarm flag bit is continuously judged, and if the safety monitoring alarm flag bit is equal to 0, the working condition pause flag bit is judged. And if the working condition pause flag bit is equal to 1, accumulating the safety monitoring alarm counter for 1 time, and when the safety monitoring alarm times reach the limit value, skipping the current working condition abandon flag bit 1 to the next testing working condition.

It can be seen from the above that the safety monitoring program and the working condition testing program of the embodiment run asynchronously, the safety monitoring program can monitor the magnitude relation between the real-time signal value of the analog system and the monitoring limit value in real time, so that the frequency and the capability of safety monitoring are improved, when the safety monitoring program monitors that the real-time signal value of the analog system exceeds the monitoring limit value, a corresponding safety monitoring alarm zone bit is generated and safety monitoring alarm is sent out in real time, and the designed safety monitoring alarm counter endows multiple try functions, thereby improving the reliability of the safety monitoring function and further improving the capability of safety monitoring.

In another exemplary embodiment, based on the operation executing process as above example, the process of controlling the parameter calibration process of the test working condition executed by the working condition test program according to the safety monitoring alarm flag bit is as follows:

monitoring the value of a safety monitoring alarm zone bit in real time;

when the safety monitoring alarm zone bit is monitored to be changed from the first value to the second value, the safety monitoring alarm zone bit is continuously obtained, and when the safety monitoring alarm zone bit is changed from the second value to the first value, the safety monitoring alarm counter is accumulated once;

When the safety monitoring alarm flag bit is monitored to be a first value and the working condition pause flag bit is monitored to be a second value, changing the working condition pause flag bit to be the first value so as to resume the parameter calibration of the execution test working condition;

and when the position of the current working condition abandoning mark is monitored to be a second value, jumping to execute the operation test of the next testing working condition.

The working condition pause flag bit is used for indicating whether the test working condition operation test process is paused or not. The safety monitoring alarm counter is used for accumulating the times of safety monitoring alarm carried out in the running test process of the current test working condition. When the safety monitoring alarm flag bit is monitored to be changed from the first value to the second value, the working condition pause flag bit is also set to the second value, and the safety monitoring alarm counter should accumulate the number of times of safety monitoring alarm once. It should be noted that, the premise that the safety monitoring alarm counter is accumulated once is that the safety monitoring alarm flag bit is changed from the second value to the first value, which means that the safety monitoring alarm is triggered once before that and the safety measure is restored to the safety state, so that the safety monitoring alarm counter is accumulated once; rather than accumulating the safety monitoring alarm counter once when it is detected that the safety monitoring alarm flag bit changes from a first value to a second value.

When the safety monitoring alarm flag bit is monitored to be a first value and the working condition pause flag bit is monitored to be a second value, the working condition pause flag bit is changed to be the first value, so that parameter calibration of the execution test working condition is resumed.

The current operating condition abort flag bit of the second value indicates that execution of the operating test on the current test operating condition is aborted. And after the running test is abandoned to be executed on the current test working condition, the running test is executed on the next test working condition in a jumping way.

The process illustrated above is also represented by the flow shown in fig. 4, where as shown in fig. 4, it is determined whether the calibration of the parameters of the engine control system is completed, and if the calibration of the parameters is not completed, the safety monitoring alarm flag bit is obtained and it is determined whether the safety monitoring alarm flag bit is equal to 1. And if the safety monitoring alarm flag bit is equal to 1, the working condition pause flag bit is 1, and the value of the safety monitoring alarm flag bit is continuously judged, and if the safety monitoring alarm flag bit is equal to 0, the working condition pause flag bit is judged. And if the working condition pause flag bit is equal to 1, accumulating the safety monitoring alarm counter for 1 time, and when the safety monitoring alarm times reach the limit value, skipping the current working condition abandon flag bit 1 to the next testing working condition.

FIG. 5 is a flow chart of an exemplary security monitor performing security monitoring on a monitored object. When the test working condition program starts, the safety monitoring program starts running at the same time, and a limit value of a monitoring object of the current working condition test program is obtained, for example, the rotating speed and the load are taken as the monitoring object, and the limit values of the rotating speed and the load are respectively 1000 and 20%; acquiring a real-time signal value of a monitoring object, and if the real-time signal values of the rotating speed and the load are 800 and 15 percent respectively at the moment, indicating that the real-time signal value does not exceed a limit value, setting a safety monitoring alarm flag bit 0 and broadcasting the safety monitoring alarm flag bit to a working condition test program; and if the real-time signal values of the rotating speed and the load are 1200 and 20 percent respectively at the moment, indicating that the real-time signal values exceed the limit value, executing the safety measure, broadcasting the safety monitoring alarm flag bit 1 to the working condition test program, and carrying out safety monitoring alarm until the working condition test program is terminated, and ending the safety monitoring program.

FIG. 6 is a block diagram illustrating a calibration device for a vehicle engine control system according to an exemplary embodiment of the present application. The device can be applied to the application scenario shown in fig. 1, can also be applied to other exemplary application scenarios, and is specifically configured in other devices, and the application scenario to which the device is applied is not limited in this embodiment.

As shown in fig. 6, the exemplary calibration device for a vehicle engine control system includes:

the operation test module 610 is configured to execute an operation test on each test condition by adjusting a control parameter of a simulation system corresponding to a vehicle engine control system in a condition test program, and execute parameter calibration after each test condition reaches a test target; the safety monitoring module 620 is configured to monitor a magnitude relation between a real-time signal value of the analog system and a monitoring limit value in the safety monitoring program, generate a safety monitoring alarm flag bit according to a monitoring result, and send the safety monitoring alarm flag bit to the working condition testing program, so that the working condition testing program controls an operation testing process and a parameter calibration process of executing a testing working condition according to the safety monitoring alarm flag bit.

In the exemplary calibration device for the vehicle engine control system, the calibration device is applied to automatic calibration software, and a working condition test program and a safety monitoring program are asynchronously operated in the automatic calibration software, wherein in the working condition test program, the vehicle engine control system, the whole vehicle hub control system and the power assembly rack control system are used as simulation systems corresponding to the vehicle engine control system, each test working condition is operated and tested by adjusting control parameters of the simulation systems, and parameter calibration is carried out after each test working condition achieves a test target; in the safety monitoring program, through the magnitude relation between the real-time signal value of the real-time monitoring simulation system and the monitoring limit value, the safety measure strategy is integrated into the safety monitoring program, and the safety measure can be executed after the safety monitoring alarm, so that the frequency and timeliness of the safety monitoring are improved, corresponding safety monitoring alarm zone bits are generated according to the monitoring result, and the generated safety monitoring alarm zone bits are sent to the working condition test program, so that the working condition test program can control the running test process and the parameter calibration process of the test working condition executed by the safety monitoring alarm zone bits according to the safety monitoring alarm zone bits, and the timeliness of executing the safety measure is improved, and the capability of safety monitoring is further improved.

In another exemplary embodiment, the calibration device for the vehicle engine control system further comprises a parameter calibration judging unit and a working condition test data acquisition unit.

And the parameter calibration judging unit is used for judging whether to execute parameter calibration after each test working condition reaches a test target in the working condition test program.

And the working condition test data acquisition unit is used for executing parameter calibration and acquiring working condition test data if the working condition test data acquisition unit is in the affirmative, and acquiring the working condition test data if the working condition test data acquisition unit is not in the affirmative.

In another exemplary embodiment, the calibration device for a vehicle engine control system further comprises a condition test data acquisition unit.

The working condition test data acquisition unit is used for acquiring working condition test data after parameter calibration is achieved in the working condition test program.

In another exemplary embodiment, the calibration device for a vehicle engine control system further comprises an operation test cycle execution unit, a constituent element identification unit, and an adjustment test unit.

And the operation test circulation execution unit is used for circularly executing operation tests of all the test working conditions in the working condition test set until the operation tests of all the test working conditions are achieved.

The component element identification unit is used for identifying the component factors of each test working condition in the working condition test set.

And the adjustment test unit is used for presetting one of the component factors as a target factor and the other component factors as target parameter values each time, and circularly executing adjustment tests of all the target factors until the adjustment tests of all the target factors are achieved.

In another exemplary embodiment, the calibration device for the vehicle engine control system further comprises a real-time monitoring unit, a safety monitoring alarm counter accumulation unit, an operation test recovery unit, a working condition abandon flag bit adjusting unit and an operation test jump unit.

And the real-time monitoring unit is used for monitoring the value of the safety monitoring alarm zone bit in real time.

And the safety monitoring alarm counter accumulation unit is used for continuously acquiring the safety monitoring alarm flag bit when the condition pause flag bit is monitored to be changed from the first value to the second value, and accumulating the safety monitoring alarm counter once when the safety monitoring alarm flag bit is changed from the second value to the first value.

And the operation test recovery unit is used for changing the working condition pause flag bit into a first value when the safety monitoring alarm flag bit is monitored to be a first value and the working condition pause flag bit is monitored to be a second value so as to recover the operation test of the execution test working condition.

And the working condition abandoning mark position adjusting unit is used for taking the position of the current working condition abandoning mark as a second value when the accumulated times of the safety monitoring alarm counter reach the limit value.

And the operation test jumping unit is used for jumping to execute the operation test of the next test working condition when the position of the current working condition abandoning mark is monitored to be the second value.

In another exemplary embodiment, the calibration device for the vehicle engine control system further comprises a flag bit adjustment unit and an operation test jump unit, wherein the flag bit adjustment unit and the operation test jump unit cannot be achieved under the working condition.

And the working condition failure achievement zone bit adjusting unit is used for setting the failure achievement zone bit of the current working condition as a second value if the adjusting parameter for adjusting the last target factor exceeds a preset range in the adjusting process of executing the last target factor corresponding to the current test working condition.

And the operation test jumping unit is used for jumping to execute the operation test of the next test working condition when the fact that the mark position cannot be reached to the second value under the current working condition is monitored.

In another exemplary embodiment, the calibration device for the vehicle engine control system further comprises a real-time monitoring unit, a safety monitoring alarm counter accumulation unit, a parameter calibration recovery unit, a working condition abandon zone bit adjusting unit and an operation test jump unit.

And the safety monitoring alarm counter accumulating unit is used for accumulating the working condition pause mark position as a second value and accumulating the safety monitoring alarm counter once when the safety monitoring alarm mark position is monitored to be changed from the first value to the second value.

And the parameter calibration recovery unit is used for changing the working condition pause flag bit into a first value when the safety monitoring alarm flag bit is monitored to be a first value and the working condition pause flag bit is monitored to be a second value so as to recover the parameter calibration of the execution test working condition.

It should be noted that, the calibration device for the vehicle engine control system provided in the foregoing embodiment and the calibration method for the vehicle engine control system provided in the foregoing embodiment belong to the same concept, and the specific manner in which each module and unit perform the operation has been described in detail in the method embodiment, which is not repeated herein. In practical application, the calibration device for the vehicle engine control system provided in the above embodiment may be configured by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above, which is not limited herein.

The embodiment of the application also provides electronic equipment, which comprises: one or more processors; and the storage device is used for storing one or more programs, and when the one or more programs are executed by the one or more processors, the electronic equipment realizes the calibration method for the vehicle engine control system provided in each embodiment.

Fig. 7 shows a schematic diagram of a computer system suitable for use in implementing the electronic device of the embodiments of the present application. It should be noted that, the computer system 700 of the electronic device shown in fig. 7 is only an example, and should not impose any limitation on the functions and the application scope of the embodiments of the present application.

As shown in fig. 7, the computer system 700 includes a central processing unit (Central Processing Unit, CPU) 701 that can perform various appropriate actions and processes, such as performing the methods in the above-described embodiments, according to a program stored in a Read-Only Memory (ROM) 702 or a program loaded from a storage section 708 into a random access Memory (Random Access Memory, RAM) 703. In the RAM 703, various programs and data required for the system operation are also stored. The CPU701, ROM 702, and RAM 703 are connected to each other through a bus 704. An Input/Output (I/O) interface 705 is also connected to bus 704.

The following components are connected to the I/O interface 705: an input section 706 including a keyboard, a mouse, and the like; an output section 707 including a Cathode Ray Tube (CRT), a liquid crystal display (Liquid Crystal Display, LCD), and the like, a speaker, and the like; a storage section 708 including a hard disk or the like; and a communication section 709 including a network interface card such as a LAN (Local Area Network ) card, a modem, or the like. The communication section 709 performs communication processing via a network such as the internet. The drive 710 is also connected to the I/O interface 705 as needed. A removable medium 711 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is installed on the drive 710 as needed, so that a computer program read out therefrom is installed into the storage section 708 as needed.

In particular, according to embodiments of the present application, the processes described above with reference to flowcharts may be implemented as computer software programs. For example, embodiments of the present application include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising a computer program for performing the method shown in the flowchart. In such an embodiment, the computer program may be downloaded and installed from a network via the communication portion 709, and/or installed from the removable medium 711. When executed by a Central Processing Unit (CPU) 701, performs the various functions defined in the system of the present application.

It should be noted that, the computer readable medium shown in the embodiments of the present application may be a computer readable signal medium or a computer readable storage medium, or any combination of the two. The computer readable storage medium may be, for example, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-Only Memory (ROM), an erasable programmable read-Only Memory (Erasable Programmable Read Only Memory, EPROM), flash Memory, an optical fiber, a portable compact disc read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present application, a computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, with a computer-readable computer program embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. A computer program embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the foregoing.

The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. Where each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

The units involved in the embodiments of the present application may be implemented by means of software, or may be implemented by means of hardware, and the described units may also be provided in a processor. Wherein the names of the units do not constitute a limitation of the units themselves in some cases.

Another aspect of the present application also provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a calibration method for a vehicle engine control system as before. The computer-readable storage medium may be included in the electronic device described in the above embodiment or may exist alone without being incorporated in the electronic device.

Another aspect of the present application also provides a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions so that the computer device performs the calibration method for the vehicle engine control system provided in the above-described respective embodiments.

The foregoing is merely a preferred exemplary embodiment of the present application and is not intended to limit the embodiments of the present application, and those skilled in the art may make various changes and modifications according to the main concept and spirit of the present application, so that the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A calibration method for a vehicle engine control system, applied to automatic calibration software, wherein a working condition test program and a safety monitoring program are asynchronously operated in the automatic calibration software, the method comprising:

in the working condition test program, executing operation test on each test working condition by adjusting control parameters of a simulation system corresponding to the vehicle engine control system, and executing parameter calibration after each test working condition reaches a test target;

and in the safety monitoring program, monitoring the magnitude relation between the real-time signal value of the simulation system and the monitoring limit value, generating a safety monitoring alarm zone bit according to a monitoring result, and sending the safety monitoring alarm zone bit to the working condition testing program so that the working condition testing program controls the running testing process and the parameter calibration process of executing the testing working condition according to the safety monitoring alarm zone bit.

2. The method of claim 1, wherein the performing an operational test for each test condition comprises:

performing operation tests of all the test working conditions in the working condition test set circularly until the operation tests of all the test working conditions are achieved;

3. The method of claim 2, wherein the operating condition test program controls an operating test process of a test operating condition executed by the operating condition test program according to the safety monitoring alarm flag bit, and the operating test program comprises:

monitoring the value of the safety monitoring alarm zone bit in real time;

when the safety monitoring alarm zone bit is monitored to be changed from the first value to the second value, the working condition pause zone bit is set to the second value, the safety monitoring alarm zone bit is continuously obtained, and the safety monitoring alarm counter is accumulated once when the safety monitoring alarm zone bit is changed from the second value to the first value;

When the accumulated times of the safety monitoring alarm counter reach a limit value, the position of a current working condition abandon mark is set to be a second value;

4. A method according to claim 3, characterized in that the method further comprises:

and when the fact that the mark position cannot be achieved to be the second value under the current working condition is monitored, executing the operation test of the next test working condition in a jumping mode.

5. The method of claim 1, wherein the operating condition test program controls a parameter calibration process of a test operating condition executed by the operating condition test program according to the safety monitoring alarm flag bit, and the method comprises the following steps:

monitoring the value of the safety monitoring alarm zone bit in real time;

when the safety monitoring alarm zone bit is monitored to be changed from a first value to a second value, the safety monitoring alarm zone bit is continuously obtained, and when the safety monitoring alarm zone bit is changed from the second value to the first value, the safety monitoring alarm counter is accumulated once;

6. The method according to any one of claims 1-5, further comprising:

in the working condition test program, after each test working condition reaches a test target, judging whether to execute the parameter calibration;

if yes, executing the parameter calibration and collecting working condition test data;

if not, collecting working condition test data.

7. The method of claim 6, wherein the method further comprises:

and if the safety monitoring alarm is triggered in the process of collecting the working condition test data, continuously collecting the working condition test data until the working condition test data is collected.

8. A calibration device for a vehicle engine control system, applied to automatic calibration software in which a working condition test program and a safety monitoring program are asynchronously operated, the device comprising:

The operation test module is used for executing operation test on each test working condition by adjusting the control parameters of the simulation system corresponding to the vehicle engine control system in the working condition test program, and executing parameter calibration after each test working condition reaches a test target;

and the safety monitoring module is used for monitoring the magnitude relation between the real-time signal value of the simulation system and the monitoring limit value in the safety monitoring program, generating a safety monitoring alarm zone bit according to a monitoring result, and sending the safety monitoring alarm zone bit to the working condition testing program so that the working condition testing program controls the running testing process and the parameter calibration process of the self-executing testing working condition according to the safety monitoring alarm zone bit.

9. An electronic device, comprising:

one or more processors;

storage means for storing one or more programs which, when executed by the one or more processors, cause the electronic device to implement the method of any of claims 1-7.

10. A computer readable storage medium having stored thereon computer readable instructions which, when executed by a processor of a computer, cause the computer to perform the method of any of claims 1 to 7.