阅读说明：本技术 发动机外特性数据调整方法、装置、设备及存储介质 (Method, device, equipment and storage medium for adjusting engine external characteristic data ) 是由 曹石 孙明峰 秦涛 武迎迎 黄玉平 于 2019-09-27 设计创作，主要内容包括：本发明提供了一种发动机外特性数据调整方法、装置、设备及存储介质,该方法包括：获取当前转速点对应的当前实际输出扭矩；根据预设的各转速点与最大输出扭矩的映射关系确定与当前实际输出扭矩对应的最大输出扭矩；将当前实际输出扭矩与对应的最大输出扭矩进行对比,以确定当前实际输出扭矩是否满足发动机扭矩调整要求；若满足发动机扭矩调整要求,则确定当前实际输出扭矩对应的外特性扭矩修正值；根据所述外特性扭矩修正值对发动机外特性扭矩进行调整,以使所述当前实际输出扭矩满足发动机出厂要求,对发动机外特征数据进行抽检和调整的方法操作简单,避免了误操作的风险,极大的提高了抽检和调整的效率。(the invention provides a method, a device, equipment and a storage medium for adjusting external characteristic data of an engine, wherein the method comprises the following steps: acquiring a current actual output torque corresponding to a current rotating speed point; determining the maximum output torque corresponding to the current actual output torque according to the preset mapping relation between each rotating speed point and the maximum output torque; comparing the current actual output torque with the corresponding maximum output torque to determine whether the current actual output torque meets the engine torque adjustment requirement; if the requirement for adjusting the torque of the engine is met, determining an external characteristic torque correction value corresponding to the current actual output torque; the engine external characteristic torque is adjusted according to the external characteristic torque correction value, so that the current actual output torque meets the delivery requirement of the engine, the method for performing selective inspection and adjustment on the engine external characteristic data is simple in operation, the risk of misoperation is avoided, and the efficiency of selective inspection and adjustment is greatly improved.)

1. An engine external characteristic data adjusting method is characterized by comprising the following steps:

acquiring a current actual output torque corresponding to a current rotating speed point;

Determining the maximum output torque corresponding to the current actual output torque according to the preset mapping relation between each rotating speed point and the maximum output torque;

Comparing the current actual output torque to the corresponding maximum output torque to determine whether the current actual output torque meets an engine torque adjustment requirement;

If the requirement for adjusting the torque of the engine is met, determining an external characteristic torque correction value corresponding to the current actual output torque;

And adjusting the external characteristic torque of the engine according to the external characteristic torque correction value so as to enable the current actual output torque to meet the delivery requirement of the engine.

2. the method of claim 1, wherein the obtaining of the current actual output torque corresponding to the current rotational speed point comprises:

And receiving the current actual output torque corresponding to the current rotating speed point sent by the bench dynamometer.

3. The method according to claim 1, wherein before determining the maximum output torque corresponding to the current actual output torque according to the preset mapping relationship between each rotation speed point and the maximum output torque, the method further comprises:

And storing the mapping relation between each rotating speed point and the maximum output torque.

4. The method of claim 1, wherein said comparing said current actual output torque to said corresponding maximum output torque to determine whether said current actual output torque meets an engine torque adjustment requirement comprises:

comparing the current actual output torque to the corresponding maximum output torque;

if the absolute value of the difference value between the current actual output torque and the corresponding maximum output torque is greater than a first preset torque deviation threshold and less than or equal to a second preset torque deviation threshold, determining that the current actual output torque meets the engine torque adjustment requirement;

And if the absolute value of the difference value between the current actual output torque and the corresponding maximum output torque is smaller than or equal to a first preset torque deviation threshold or larger than a second preset torque deviation threshold, determining that the current actual output torque does not meet the engine torque adjustment requirement.

5. The method of claim 4, wherein if the absolute value of the difference between the current actual output torque and the corresponding maximum output torque is less than or equal to a first predetermined torque deviation threshold, further comprising:

Determining that the current actual output torque meets the delivery requirement of the engine torque;

if the absolute value of the difference between the current actual output torque and the corresponding maximum output torque is greater than a second preset torque deviation threshold, the method further comprises:

Outputting a fault message of the external characteristic of the engine to eliminate the external characteristic fault of the engine according to the fault message.

6. The method of claim 1, wherein determining the external characteristic torque correction value for the current actual output torque comprises:

and performing closed-loop control according to the current actual output torque and the corresponding maximum output torque to output the external characteristic torque correction value.

7. The method of claim 1, wherein said adjusting said engine external characteristic torque based on said torque correction value comprises:

When the engine electric control equipment is powered off, the external characteristic torque correction value is stored in a preset storage area;

Reading the external characteristic torque correction value from the preset storage area when an engine electric control device is powered on;

And superposing the external characteristic torque correction value on the corresponding external characteristic torque of the engine so as to adjust the current actual output torque.

8. An engine external characteristic data adjusting device, comprising:

The actual output torque acquisition module is used for acquiring the current actual output torque corresponding to the current rotating speed point;

the maximum output torque determining module is used for determining the maximum output torque corresponding to the current actual output torque according to the preset mapping relation between each rotating speed point and the maximum output torque;

A torque adjustment requirement judging module for comparing the current actual output torque with the corresponding maximum output torque to determine whether the current actual output torque meets an engine torque adjustment requirement;

The torque correction value determining module is used for determining a torque correction value corresponding to the current actual output torque if the torque correction value meets the requirement of engine torque adjustment;

and the engine external characteristic torque adjusting module is used for adjusting the engine external characteristic torque according to the torque correction value.

9. An electronic control apparatus for an engine, characterized by comprising:

A memory, a processor, and a computer program;

Wherein the computer program is stored in the memory and configured to be executed by the processor to implement the method of any one of claims 1-7.

10. A computer-readable storage medium, having stored thereon a computer program for execution by a processor to perform the method of any one of claims 1-7.

Technical Field

The embodiment of the invention relates to the technical field of engine test run, in particular to a method, a device, equipment and a storage medium for adjusting external characteristic data of an engine.

background

With the rapid development of the production and manufacturing industry, the production of the engine is also rapidly developed. Before the engine is normally produced, the engine needs to be tested. An important link in the process of engine test run is to carry out spot check and adjustment of performance indexes. One important performance index for spot check is whether the external characteristic data of the engine meets the requirements of the engine. The external characteristic data of the engine is the maximum required torque corresponding to each rotating speed point when the accelerator is maximum.

Disclosure of Invention

the embodiment of the invention provides a method, a device, equipment and a storage medium for adjusting external characteristic data of an engine, and solves the technical problems that in the prior art, the method for performing selective inspection and adjustment on the external characteristic data of the engine is complex in operation, risks of misoperation exist, and the efficiency of the selective inspection and adjustment is low.

In a first aspect, an embodiment of the present invention provides an engine external characteristic data adjusting method, including:

acquiring a current actual output torque corresponding to a current rotating speed point;

Determining the maximum output torque corresponding to the current actual output torque according to the preset mapping relation between each rotating speed point and the maximum output torque;

Comparing the current actual output torque to the corresponding maximum output torque to determine whether the current actual output torque meets an engine torque adjustment requirement;

if the requirement for adjusting the torque of the engine is met, determining an external characteristic torque correction value corresponding to the current actual output torque;

And adjusting the external characteristic torque of the engine according to the external characteristic torque correction value so as to enable the current actual output torque to meet the delivery requirement of the engine.

Further, the method as described above, the obtaining of the current actual output torque corresponding to the current rotation speed point includes:

And receiving the current actual output torque corresponding to the current rotating speed point sent by the bench dynamometer.

Further, the method as described above, before determining the maximum output torque corresponding to the current actual output torque according to the preset mapping relationship between each rotation speed point and the maximum output torque, further includes:

And storing the mapping relation between each rotating speed point and the maximum output torque.

Further, the method as described above, said comparing said current actual output torque to said corresponding maximum output torque to determine if said current actual output torque meets an engine torque adjustment requirement, comprising:

Comparing the current actual output torque to the corresponding maximum output torque;

If the absolute value of the difference value between the current actual output torque and the corresponding maximum output torque is greater than a first preset torque deviation threshold and less than or equal to a second preset torque deviation threshold, determining that the current actual output torque meets the engine torque adjustment requirement;

And if the absolute value of the difference value between the current actual output torque and the corresponding maximum output torque is smaller than or equal to a first preset torque deviation threshold or larger than a second preset torque deviation threshold, determining that the current actual output torque does not meet the engine torque adjustment requirement.

further, the method as described above, if the absolute value of the difference between the current actual output torque and the corresponding maximum output torque is less than or equal to a first preset torque deviation threshold, further includes:

determining that the current actual output torque meets the delivery requirement of the engine torque;

If the absolute value of the difference between the current actual output torque and the corresponding maximum output torque is greater than a second preset torque deviation threshold, the method further comprises:

outputting a fault message of the external characteristic of the engine to eliminate the external characteristic fault of the engine according to the fault message.

Further, the method as described above, wherein determining a torque correction value corresponding to the current actual output torque includes:

And performing closed-loop control according to the current actual output torque and the corresponding maximum output torque to output the external characteristic torque correction value.

Further, the method for adjusting the engine external characteristic torque according to the external characteristic torque correction value as described above includes:

when the engine electric control equipment is powered off, the external characteristic torque correction value is stored in a preset storage area;

Reading the external characteristic torque correction value from the preset storage area when an engine electric control device is powered on;

and superposing the external characteristic torque correction value on the corresponding external characteristic torque of the engine so as to adjust the current actual output torque.

In a second aspect, an embodiment of the present invention provides an engine external characteristic data adjusting device, including:

The actual output torque acquisition module is used for acquiring the current actual output torque corresponding to the current rotating speed point;

The maximum output torque determining module is used for determining the maximum output torque corresponding to the current actual output torque according to the preset mapping relation between each rotating speed point and the maximum output torque;

A torque adjustment requirement judging module for comparing the current actual output torque with the corresponding maximum output torque to determine whether the current actual output torque meets an engine torque adjustment requirement;

The torque correction value determining module is used for determining an external characteristic torque correction value corresponding to the current actual output torque if the torque correction value meets the requirement of engine torque adjustment;

And the engine external characteristic torque adjusting module is used for adjusting the engine external characteristic torque according to the external characteristic torque correction value.

further, the apparatus as described above, the actual output torque obtaining module, is specifically configured to: and receiving the current actual output torque corresponding to the current rotating speed point sent by the bench dynamometer.

further, the device as described above, the torque adjustment request determining module is specifically configured to: comparing the current actual output torque to the corresponding maximum output torque; if the absolute value of the difference value between the current actual output torque and the corresponding maximum output torque is greater than a first preset torque deviation threshold and less than or equal to a second preset torque deviation threshold, determining that the current actual output torque meets the engine torque adjustment requirement; and if the absolute value of the difference value between the current actual output torque and the corresponding maximum output torque is smaller than or equal to a first preset torque deviation threshold or larger than a second preset torque deviation threshold, determining that the current actual output torque does not meet the engine torque adjustment requirement.

further, in the apparatus described above, the torque adjustment requirement determining module is further configured to determine that the current actual output torque meets a factory requirement of engine torque if an absolute value of a difference between the current actual output torque and the corresponding maximum output torque is less than or equal to a first preset torque deviation threshold; and when the absolute value of the difference value between the current actual output torque and the corresponding maximum output torque is larger than a second preset torque deviation threshold value, outputting a fault message of the external characteristic of the engine so as to eliminate the external characteristic fault of the engine according to the fault message.

Further, the apparatus as described above, the torque correction value determining module is specifically configured to perform closed-loop control according to the current actual output torque and the corresponding maximum output torque, so as to output the external characteristic torque correction value.

Further, the apparatus as described above, the engine external characteristic torque adjustment module, is specifically configured to: when the engine electric control equipment is powered off, the external characteristic torque correction value is stored in a preset storage area; reading the external characteristic torque correction value from the preset storage area when an engine electric control device is powered on; and superposing the external characteristic torque correction value on the corresponding external characteristic torque of the engine so as to adjust the current actual output torque.

further, the device further comprises a mapping relation storage module, which is used for storing the mapping relation between each rotating speed point and the maximum output torque.

In a third aspect, an embodiment of the present invention provides an engine electric control apparatus, including a memory, a processor, and a computer program;

wherein the computer program is stored in the memory and configured to be executed by the processor to implement the method of any of the first aspects.

In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, the computer program being executed by a processor to implement the method according to any one of the first aspect.

The embodiment of the invention provides a method, a device, equipment and a storage medium for adjusting external characteristic data of an engine, wherein the method comprises the following steps: acquiring a current actual output torque corresponding to a current rotating speed point; determining the maximum output torque corresponding to the current actual output torque according to the preset mapping relation between each rotating speed point and the maximum output torque; comparing the current actual output torque with the corresponding maximum output torque to determine whether the current actual output torque meets the engine torque adjustment requirement; if the requirement for adjusting the torque of the engine is met, determining an external characteristic torque correction value corresponding to the current actual output torque; and adjusting the external characteristic torque of the engine according to the external characteristic torque correction value so that the current actual output torque meets the delivery requirement of the engine. The method for automatically adjusting the external characteristic data of the engine is simple in operation, the external characteristic torque correction value is obtained by performing closed-loop control on the actual output torque and the maximum output torque, and the external characteristic torque adjustment is automatically realized according to the external characteristic torque correction value, so that the current actual output torque meets the delivery requirement of the engine.

It should be understood that what is described in the summary above is not intended to limit key or critical features of embodiments of the invention, nor is it intended to limit the scope of the invention. Other features of the present invention will become apparent from the following description.

drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

fig. 1 is a flowchart of an engine external characteristic data adjusting method according to an embodiment of the present invention;

Fig. 2 is a flowchart of an engine external characteristic data adjusting method according to a second embodiment of the present invention;

FIG. 3 is a flowchart of step 204 provided by the second embodiment of the present invention;

FIG. 4 is a flowchart illustrating the process after step 2043 according to the second embodiment of the present invention;

FIG. 5 is a flowchart of step 206 provided by the second embodiment of the present invention;

Fig. 6 is a schematic structural diagram of an engine external characteristic data adjusting device according to a third embodiment of the present invention;

fig. 7 is a schematic structural diagram of an engine external characteristic data adjusting apparatus according to a fourth embodiment of the present invention;

Fig. 8 is a schematic structural diagram of an electronic control device of an engine according to an embodiment of the present invention.

Detailed Description

Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but rather are provided for a more thorough and complete understanding of the present invention. It should be understood that the drawings and the embodiments of the present invention are illustrative only and are not intended to limit the scope of the present invention.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims, and in the above-described drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The following describes embodiments of the present invention with reference to the drawings.