Engine exhaust noise elimination detection method and system

Abstract

The invention discloses an engine exhaust noise elimination detection method and system. The method comprises the following steps: constructing an exhaust gradient change diagram based on a plurality of exhaust volumes; defining each exhaust interval based on the exhaust gradient change graph, and determining an exhaust type according to interval identification of each exhaust interval; environment parameters of the surrounding environment where the engine is located are collected, the environment type of the environment where the engine is located is defined, and the noise level is defined according to the environment type and the exhaust type; defining a silencing logic based on the noise level and the silencing control table, and triggering a silencing stage of engine exhaust according to the silencing logic; in the silencing stage of engine exhaust, the actual noise of the engine exhaust is detected; according to the method, the difference level is defined according to the difference quantity between the actual noise and the preset noise, dynamic adjustment of the noise elimination logic is triggered based on the difference level so that the actual noise of engine exhaust can be dynamically adjusted, the difference quantity is maintained within the preset difference range, and therefore dynamic noise elimination control can be conducted on the exhaust process of the engine.

Description

Technical Field

[0001] The present invention relates to the technical field of engine exhaust muffler detection, and in particular to an engine exhaust muffler detection method and system. Background Art

[0002] With the development of science and technology, the engine serves as the kinetic energy component of the vehicle and outputs power to the vehicle. The engine outputs energy and exhausts gas during operation. Therefore, the exhaust volume is introduced to present the exhaust volume of the gas. In the prior art, the engine exhausts gas as it works. However, the exhaust volume is uniformly controlled according to the previous control logic. The engine also generates a large amount of noise during the exhaust process. There is no control over the exhaust volume and noise, and it is impossible to achieve dynamic noise reduction control of the engine during the exhaust process. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art. The present invention provides an engine exhaust muffler detection method and system, which collect multiple dynamic parameters of the engine and define the working state of the engine according to the multiple dynamic parameters; in the working state of the engine, collect the exhaust volume of the engine within a preset time, and construct an exhaust gradient change map based on the multiple exhaust volumes; define each exhaust interval based on the exhaust gradient change map, and determine the exhaust type according to the interval identification of each exhaust interval; collect environmental parameters of the surrounding environment of the engine, define the environmental type of the engine environment, and define the noise level according to the environmental type and the exhaust type; define the muffler logic based on the noise level and the muffler control table, and trigger the muffler stage of the engine exhaust according to the muffler logic; in the muffler stage of the engine exhaust, detect the actual noise of the engine exhaust; define the difference level according to the difference between the actual noise and the preset noise, and trigger the dynamic adjustment of the muffler logic based on the difference level to dynamically adjust the actual noise of the engine exhaust, and maintain the difference within the preset difference range, so as to perform dynamic muffler control on the exhaust process of the engine, and perform muffler control on the noise in the exhaust process to optimize the noise impact of the engine in the exhaust process.

[0004] In order to solve the above technical problems, an embodiment of the present invention provides an engine exhaust muffler detection method, which is applied to the engine exhaust muffler detection scenario; the engine exhaust muffler detection method comprises: Collect multiple dynamic parameters of the engine and define the working state of the engine according to the multiple dynamic parameters; When the engine is in a working state, the exhaust volume of the engine within a preset time is collected, and an exhaust gradient change diagram is constructed based on the multiple exhaust volumes; Defining each exhaust interval based on the exhaust gradient change map, and determining the exhaust type according to the interval identification of each exhaust interval; Collect environmental parameters of the surrounding environment of the engine, define the environment type of the engine, and define the noise level according to the environment type and exhaust type; Defining a muffler logic based on the noise level and the muffler control table, and triggering a muffler phase of the engine exhaust according to the muffler logic; detecting actual noise of the engine exhaust during the muffler phase of the engine exhaust; A difference level is defined according to the difference between the actual noise and the preset noise, and dynamic adjustment of the muffler logic is triggered based on the difference level to dynamically adjust the actual noise of the engine exhaust and maintain the difference within a preset difference range.

[0005] Optionally, collecting multiple dynamic parameters of the engine and defining the working state of the engine according to the multiple dynamic parameters includes: Collect the location of the engine and locate the detection area according to the location of the engine; Traverse the inspection area and mark the engine; Based on the engine triggering multi-dimensional detection, multiple dynamic parameters of the engine are collected; the multiple dynamic parameters are different types of parameters; Combining multiple dynamic parameters and building multiple dynamic parameter combinations; Define corresponding sub-features based on dynamic parameter combinations and collect multiple features; A matching coefficient is constructed based on the multiple sub-features, and the working state of the engine is defined according to the multiple sub-features, the matching coefficient and the state comparison table.

[0006] Optionally, when the engine is in a working state, the exhaust volume of the engine within a preset time is collected, and an exhaust gradient change diagram is constructed based on multiple exhaust volumes, including: Collect the displayed status of the engine in the display table, and compare the displayed status with the status of the engine; If there is a discrepancy between the displayed state and the state of the engine, a review of the state of the engine is triggered, and the displayed state is adjusted according to the review result to maintain the accuracy of the displayed state; Under the working state of the engine, the exhaust volume of the engine within a preset time is collected; Constructing an exhaust volume set of the engine according to the plurality of exhaust volumes; Associating the exhaust volume set of the engine with the running time of the engine to form an exhaust volume-time combination; An exhaust gradient change diagram is constructed according to multiple exhaust volume-time combinations, wherein change nodes in the exhaust gradient change diagram are marked; the corresponding exhaust volume-time combination is triggered based on the change node, and the data of the exhaust volume-time combination is dynamically checked to ensure the accuracy of the change node.

[0007] Optionally, the step of defining each exhaust interval based on the exhaust gradient change diagram, and determining the exhaust type according to interval identification of each exhaust interval, includes: Fixed frame exhaust gradient change diagram; Divide the exhaust gas gradient change diagram into intervals, and match the corresponding interval range according to the engine model information; Define each exhaust interval based on the exhaust gradient change diagram and the interval range; Associating each exhaust interval and defining the correlation coefficient of each exhaust interval; Based on the correlation coefficient of each exhaust interval, the model information of the engine and each exhaust interval, interval control is performed to control the dynamic balance relationship between each exhaust interval; Based on each exhaust interval, corresponding interval identification is performed and interval coefficients are defined; The exhaust type is defined according to the interval coefficient and the exhaust type table, and each exhaust type is marked at a corresponding position in the exhaust gradient change diagram.

[0008] Optionally, collecting environmental parameters of the surrounding environment of the engine, defining the environment type of the environment of the engine, and defining the noise level according to the environment type and the exhaust type include: Freeze the position of the engine; Detect the surrounding environment based on the location of the engine and define the surrounding environment of the engine; Collecting environmental parameters of the surrounding environment of the engine according to the detection of the surrounding environment of the engine; Divide multiple sub-environment spaces based on the surrounding environment, and associate multiple environmental parameters with corresponding sub-environment spaces respectively; The sub-environment type is defined according to the orientation of the sub-environment space relative to the engine and the environmental parameters in the sub-environment space; Determining the environment type of the environment where the engine is located based on the integration of multiple sub-environment types; An environment type and an exhaust type are associated, and a noise level is defined based on the environment type and the exhaust type.

[0009] Optionally, the muffler logic is defined based on the noise level and the muffler control table, and the muffler phase of the engine exhaust is triggered according to the muffler logic; in the muffler phase of the engine exhaust, the actual noise of the engine exhaust is detected, including: Rated noise level and noise control table; The noise level and the noise reduction control table are associated, and a plurality of noise reduction logics are determined according to the noise level and the noise reduction control table.

[0010] Optionally, the method further comprises: defining a muffler logic based on the noise level and the muffler control table, and triggering a muffler phase of the engine exhaust according to the muffler logic; and detecting the actual noise of the engine exhaust during the muffler phase of the engine exhaust, further comprising: Freeze the engine and perform a component traversal based on the engine and exhaust direction to determine the current muffler accessories; Define the best silencer logic based on the current silencer accessories and multiple silencer logics; Define the silencing means and silencing levels corresponding to the silencing accessories according to the best silencing logic; Triggering the muffler stage of the engine exhaust based on the muffler means and the muffler level; During the muffle phase of the engine exhaust, the actual noise of the engine exhaust is detected.

[0011] Optionally, the step of defining a difference level according to a difference between the actual noise and the preset noise, and triggering dynamic adjustment of the muffler logic based on the difference level to dynamically adjust the actual noise of the engine exhaust and maintain the difference within a preset difference range, includes: The actual noise and the preset noise are fixed. At this time, the theoretical exhaust volume specified by the engine and the environmental type of the environment in which the engine is located define the preset noise; The actual noise is compared with the preset noise, and the difference amount between the actual noise and the preset noise is defined.

[0012] Optionally, the method of defining a difference level according to a difference between the actual noise and the preset noise, and triggering dynamic adjustment of the muffler logic based on the difference level to dynamically adjust the actual noise of the engine exhaust and maintain the difference within a preset difference range, further includes: defining a difference level based on the amount of difference between the actual noise and the preset noise; Correlate the difference level, actual noise and adjustment matching table, and output corresponding adjustment measures; Dynamically adjust the muffler logic according to the adjustment measures and dynamically adjust the actual noise of the engine exhaust; The actual noise of the engine exhaust is monitored in real time, and the difference is maintained within the preset difference range.

[0013] Optionally, an engine exhaust muffler detection system is provided, the engine exhaust muffler detection system being applied to the above-mentioned engine exhaust muffler detection method, the engine exhaust muffler detection system comprising: A collection module, used for collecting multiple dynamic parameters of the engine, and defining the working state of the engine according to the multiple dynamic parameters; An exhaust gradient change diagram module is used to collect the exhaust volume of the engine within a preset time when the engine is in a working state, and to construct an exhaust gradient change diagram based on multiple exhaust volumes; An exhaust type module, for defining each exhaust interval based on the exhaust gradient change diagram, and determining the exhaust type according to the interval identification of each exhaust interval; The noise level module is used to collect environmental parameters of the surrounding environment of the engine, define the environmental type of the engine, and define the noise level according to the environmental type and exhaust type; A detection module, used to define a muffler logic based on the noise level and the muffler control table, and trigger a muffler phase of the engine exhaust according to the muffler logic; in the muffler phase of the engine exhaust, detect the actual noise of the engine exhaust; The dynamic adjustment module is used to define a difference level according to the difference between the actual noise and the preset noise, and trigger the dynamic adjustment of the muffler logic based on the difference level to dynamically adjust the actual noise of the engine exhaust and maintain the difference within the preset difference range.

[0014] In an embodiment of the present invention, through the method in the embodiment of the present invention, multiple dynamic parameters of the engine are collected, and the working state of the engine is defined according to the multiple dynamic parameters; in the working state of the engine, the exhaust volume of the engine within a preset time is collected, and an exhaust gradient change diagram is constructed based on the multiple exhaust volumes; each exhaust interval is defined based on the exhaust gradient change diagram, and the exhaust type is determined according to the interval identification of each exhaust interval; environmental parameters of the surrounding environment of the engine are collected, and the environmental type of the environment in which the engine is located is defined, and the noise level is defined according to the environmental type and the exhaust type; based on the noise level and the muffler control table, the muffler logic is defined, and the muffler stage of the engine exhaust is triggered according to the muffler logic; in the muffler stage of the engine exhaust, the actual noise of the engine exhaust is detected; based on the difference between the actual noise and the preset noise, the difference level is defined, and the dynamic adjustment of the muffler logic is triggered based on the difference level, so as to dynamically adjust the actual noise of the engine exhaust, and maintain the difference within the preset difference range, so as to perform dynamic muffler control on the exhaust process of the engine, and perform muffler control on the noise in the exhaust process, so as to optimize the noise impact of the engine in the exhaust process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 is a flow chart of an engine exhaust muffler detection method in an embodiment of the present invention; Figure 2 is a flow chart of S11 in the engine exhaust muffler detection method in an embodiment of the present invention; Figure 3 is a schematic flow chart of S12 in the engine exhaust muffler detection method in an embodiment of the present invention; Figure 4 is a flow chart of S13 in the engine exhaust muffler detection method in an embodiment of the present invention; Figure 5 is a schematic flow chart of S14 in the engine exhaust muffler detection method in an embodiment of the present invention; Figure 6 is a flow chart of S15 in the engine exhaust muffler detection method in an embodiment of the present invention; Figure 7 is a flow chart of S16 in the engine exhaust muffler detection method in an embodiment of the present invention; Figure 8 Schematic diagram of the structure of the engine exhaust muffler detection system in an embodiment of the present invention; Fig. 9 The figure is a hardware diagram of an electronic device according to an exemplary embodiment. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figures 1 to 7 , an engine exhaust muffler detection method is applied to the engine exhaust muffler detection scenario; the engine exhaust muffler detection method comprises: Step S11: collecting multiple dynamic parameters of the engine, and defining the working state of the engine according to the multiple dynamic parameters; Step S12: Under the working state of the engine, the exhaust volume of the engine within a preset time is collected, and an exhaust gradient change diagram is constructed based on the multiple exhaust volumes; Step S13: defining each exhaust interval based on the exhaust gradient change map, and determining the exhaust type according to the interval identification of each exhaust interval; Step S14: collecting environmental parameters of the surrounding environment of the engine, defining the environmental type of the engine, and defining the noise level according to the environmental type and exhaust type; Step S15: defining a muffler logic based on the noise level and the muffler control table, and triggering a muffler phase of the engine exhaust according to the muffler logic; in the muffler phase of the engine exhaust, detecting actual noise of the engine exhaust; Step S16: defining a difference level according to the difference between the actual noise and the preset noise, and triggering dynamic adjustment of the muffler logic based on the difference level to dynamically adjust the actual noise of the engine exhaust and maintain the difference within a preset difference range.

[0019] In an embodiment of the present invention, through the method in the embodiment of the present invention, multiple dynamic parameters of the engine are collected, and the working state of the engine is defined according to the multiple dynamic parameters; in the working state of the engine, the exhaust volume of the engine within a preset time is collected, and an exhaust gradient change diagram is constructed based on the multiple exhaust volumes; each exhaust interval is defined based on the exhaust gradient change diagram, and the exhaust type is determined according to the interval identification of each exhaust interval; environmental parameters of the surrounding environment of the engine are collected, and the environmental type of the environment in which the engine is located is defined, and the noise level is defined according to the environmental type and the exhaust type; based on the noise level and the muffler control table, the muffler logic is defined, and the muffler stage of the engine exhaust is triggered according to the muffler logic; in the muffler stage of the engine exhaust, the actual noise of the engine exhaust is detected; based on the difference between the actual noise and the preset noise, the difference level is defined, and the dynamic adjustment of the muffler logic is triggered based on the difference level, so as to dynamically adjust the actual noise of the engine exhaust, and maintain the difference within the preset difference range, so as to perform dynamic muffler control on the exhaust process of the engine, and perform muffler control on the noise in the exhaust process, so as to optimize the noise impact of the engine in the exhaust process.

[0020] See also Figure 2 In step S11, a plurality of dynamic parameters of the engine are collected, and the working state of the engine is defined according to the plurality of dynamic parameters; In the specific implementation process of the present invention, the specific steps may be: S111: collecting the location of the engine and locating the detection area according to the location of the engine; S112: traverse the detection area and mark the engine; S113: triggering multi-dimensional detection based on the engine, and collecting multiple dynamic parameters of the engine; the multiple dynamic parameters are parameters of different types; S114: Combining multiple dynamic parameters and constructing multiple dynamic parameter combinations; S115: defining corresponding sub-features based on the dynamic parameter combination, and collecting multiple features; S116: Constructing a matching coefficient based on the multiple sub-features, and defining the working state of the engine according to the multiple sub-features, the matching coefficient and the state comparison table.

[0021] In an embodiment of the present application, the location of the engine is collected, and a detection area is located according to the location of the engine, so that the detection area can be traversed to mark the engine, and then the engine is managed and controlled to clarify the status of the engine.

[0022] At this time, multi-dimensional detection is triggered based on the engine, and the engine is synchronously detected in multiple dimensions to facilitate the collection of multiple dynamic parameters of the engine. At this time, the multiple dynamic parameters are parameters of different types and are in different dimensions. Optionally, the multiple dynamic parameters are engine operating parameters, engine exhaust parameters, etc.

[0023] Therefore, multiple dynamic parameters are collected, and multiple dynamic parameters are dynamically collected so as to combine them according to the multiple dynamic parameters and construct multiple dynamic parameter combinations, thereby introducing multiple dynamic parameter combinations, and then defining corresponding sub-features based on the dynamic parameter combinations. Optionally, the dynamic parameter combinations are characterized, and corresponding sub-features are constructed in the combinations so as to collect multiple sub-features and then match multiple features. Optionally, multiple dynamic parameters are sorted respectively and matched according to matching relationships so as to construct multiple dynamic parameter combinations. At the same time, the stability of multiple dynamic parameter combinations is guaranteed so as to introduce multiple dynamic parameter combinations under the matching of multiple dynamic parameters.

[0024] Therefore, a matching coefficient is constructed based on multiple sub-features, and the working state of the engine is defined according to multiple sub-features, matching coefficients and the state comparison table, so that the working state of the engine is defined under the overall control of multiple sub-features, matching coefficients and the state comparison table, and then the working state of the engine is controlled to ensure the accuracy of the working state of the engine. See also Figure 3 In step S12, under the working state of the engine, the exhaust volume of the engine within a preset time is collected, and an exhaust gradient change diagram is constructed based on multiple exhaust volumes; In the specific implementation process of the present invention, the specific steps may be: S121: collecting the display status of the engine in the display table, and comparing the display status with the status of the engine; S122: If there is a difference between the display state and the engine state, a review of the engine state is triggered, and the display state is adjusted according to the review result to maintain the accuracy of the display state; S123: Under the working state of the engine, collecting the exhaust volume of the engine within a preset time; S124: constructing an exhaust volume set of the engine according to the multiple exhaust volumes; S125: Associating the exhaust volume set of the engine with the running time of the engine to form an exhaust volume-time combination; S126: Construct an exhaust gradient change diagram based on multiple exhaust volume-time combinations, wherein the change nodes in the exhaust gradient change diagram are marked; trigger the corresponding exhaust volume-time combination based on the change node, and dynamically check the data of the exhaust volume-time combination to ensure the accuracy of the change node.

[0025] In an embodiment of the present application, the display status of the engine in the display table is collected, and the display status and the status of the engine are compared, so as to perform a comparative comparison between the display status and the status of the engine, so as to facilitate synchronous control of the display status and the status of the engine, thereby ensuring the consistency of the display status and the status of the engine.

[0026] If there is a difference between the display status and the engine status, a review of the engine status will be triggered, and the display status will be adjusted according to the review result to maintain the accuracy of the display status. The difference between the display status and the engine status can be unified through the review of the engine status, and the difference factors can be clarified to facilitate further control of the difference factors, thereby ensuring the accuracy of the display status and eliminating the influence of the display status.

[0027] Furthermore, when the engine is in a working state, the exhaust volume of the engine within a preset time is collected, and the exhaust volume is controlled. At this time, an exhaust volume set of the engine is constructed based on multiple exhaust volumes to facilitate overall control of the exhaust volume set of the engine, and then the exhaust volume set of the engine is associated with the running time of the engine to form an exhaust volume-time combination.

[0028] At this time, an exhaust gradient change graph is constructed based on multiple exhaust volume-time combinations, wherein the change nodes in the exhaust gradient change graph are marked; the corresponding exhaust volume-time combination is triggered based on the change nodes, and the data of the exhaust volume-time combination is dynamically checked to ensure the accuracy of the change nodes.

[0029] See also Figure 4 In step S13, each exhaust interval is defined based on the exhaust gradient change diagram, and the exhaust type is determined according to the interval identification of each exhaust interval; In the specific implementation process of the present invention, the specific steps may be: S131: Fixed-frame exhaust gradient change diagram; S132: Dividing the exhaust gas gradient change map into intervals, and matching corresponding interval ranges according to engine model information; S133: defining each exhaust interval based on the exhaust gradient change diagram and the interval range; S134: Associating each exhaust interval and defining the correlation coefficient of each exhaust interval; S135: performing interval control based on correlation coefficients of the exhaust intervals, model information of the engine, and the exhaust intervals to control the dynamic balance relationship between the exhaust intervals; S136: performing corresponding interval identification based on each exhaust interval and defining an interval coefficient; S137: Define the exhaust type according to the interval coefficient and the exhaust type table, and mark each exhaust type at a corresponding position in the exhaust gradient change diagram.

[0030] In an embodiment of the present application, the exhaust gradient change diagram is frozen and introduced to facilitate the control of exhaust volume based on the exhaust gradient change diagram. At this time, the exhaust gradient change diagram is divided into intervals, and the corresponding interval range is matched according to the engine model information; each exhaust interval is defined based on the exhaust gradient change diagram and the interval range, thereby clarifying each exhaust interval in the exhaust gradient change diagram, and then targeted control is performed on each exhaust interval.

[0031] At this time, each exhaust interval is associated to facilitate correlation comparison of each exhaust interval, so as to define the correlation coefficient of each exhaust interval, present the correlation degree of each exhaust interval through the correlation coefficient, and perform interval regulation based on the correlation coefficient of each exhaust interval, the model information of the engine and each exhaust interval to manage the dynamic balance relationship between each exhaust interval. Therefore, the correlation coefficient of each exhaust interval, the model information of the engine and each exhaust interval are controlled in multiple dimensions to facilitate the construction of the dynamic balance relationship between each exhaust interval, and the stability of the engine exhaust is guaranteed based on the dynamic balance relationship.

[0032] Furthermore, corresponding interval identification is performed based on each exhaust interval, and an interval coefficient is defined; exhaust types are defined according to the interval coefficient and the exhaust type table, and each exhaust type is marked at a corresponding position in the exhaust gradient change diagram, thereby introducing each exhaust type for the exhaust gradient change diagram, and matching each exhaust type with the corresponding exhaust interval, thereby presenting the type change of the exhaust interval, and then controlling the exhaust continuity and dynamic change of the engine. Optionally, the exhaust type is a balanced exhaust type, a fast exhaust type, or a slow exhaust type.

[0033] See also Figure 5 S14: collecting environmental parameters of the surrounding environment of the engine, defining the environmental type of the engine, and defining the noise level according to the environmental type and exhaust type; In the specific implementation process of the present invention, the specific steps may be: S141: freeze frame engine location; S142: Detecting the surrounding environment based on the location of the engine, and defining the surrounding environment of the engine; S143: collecting environmental parameters of the surrounding environment of the engine according to the detection of the surrounding environment of the engine; S144: Divide a plurality of sub-environment spaces based on the surrounding environment, and associate a plurality of environmental parameters with corresponding sub-environment spaces respectively; S145: defining a sub-environment type according to the orientation of the sub-environment space relative to the engine and environmental parameters in the sub-environment space; S146: Determine the environment type of the environment where the engine is located according to the integration of multiple sub-environment types; S147: Associating the environment type and the exhaust type, and defining a noise level based on the environment type and the exhaust type.

[0034] In an embodiment of the present application, the position of the engine is frozen; the surrounding environment is detected based on the position of the engine, and the surrounding environment of the engine is defined, and the surrounding environment of the engine is managed and controlled, thereby controlling the surrounding environment of the engine and the engine in multiple dimensions and introducing environmental influences on the engine.

[0035] At this time, environmental parameters of the surrounding environment of the engine are collected based on the detection of the surrounding environment of the engine, so as to introduce multiple environmental parameters. At the same time, multiple sub-environmental spaces are divided based on the surrounding environment, and multiple environmental parameters are respectively associated with corresponding sub-environmental spaces, so that the environmental parameters and sub-environmental spaces are presented in correspondence.

[0036] Therefore, the sub-environment type is defined according to the orientation of the sub-environment space relative to the engine and the environmental parameters in the sub-environment space; the environmental type of the engine is determined based on the integration of multiple sub-environment types; the environmental type and the exhaust type are associated, and the noise level is defined based on the environmental type and the exhaust type, and then the noise level is controlled to ensure the accuracy of the noise level.

[0037] See also Figure 6 , S15: defining a muffler logic based on the noise level and the muffler control table, and triggering a muffler phase of the engine exhaust according to the muffler logic; in the muffler phase of the engine exhaust, detecting actual noise of the engine exhaust; In the specific implementation process of the present invention, the specific steps may be: S151: Noise level and noise control table; S152: Associating the noise level with the noise reduction control table, and determining a plurality of noise reduction logics according to the noise level and the noise reduction control table; S153: freeze the engine, and perform component traversal according to the engine and exhaust direction to determine the current muffler accessories; S154: defining an optimal silencing logic according to current silencing accessories and multiple silencing logics; S155: Define the silencing means and silencing levels corresponding to the silencing accessories according to the optimal silencing logic; S156: triggering the muffler stage of the engine exhaust based on the muffler means and the muffler level; S157: During the silencing phase of the engine exhaust, the actual noise of the engine exhaust is detected.

[0038] In an embodiment of the present application, the noise level and the muffler control table are fixed to facilitate associating the noise level and the muffler control table, and multiple muffler logics are determined according to the noise level and the muffler control table, thereby introducing multiple muffler logics, and then managing and controlling the multiple muffler logics.

[0039] In order to ensure the effectiveness of the silencer logic, at this time, the engine is frozen, and the components are traversed according to the engine and the exhaust direction to determine the current silencer accessories; the best silencer logic is defined according to the current silencer accessories and multiple silencer logics, thereby ensuring the adaptability of the current silencer accessories and the best silencer logic, and then the best silencer logic is managed and controlled, so as to define the silencer means and silencer level corresponding to the silencer accessories according to the best silencer logic.

[0040] See also Figure 7 , S16: defining a difference level according to a difference between the actual noise and the preset noise, and triggering dynamic adjustment of the muffler logic based on the difference level to dynamically adjust the actual noise of the engine exhaust and maintain the difference within a preset difference range; In the specific implementation process of the present invention, the specific steps may be: S161: freezing the actual noise and the preset noise. At this time, the theoretical exhaust volume specified by the engine and the environment type of the environment in which the engine is located define the preset noise; S162: Compare the actual noise with the preset noise, and define a difference between the actual noise and the preset noise; S163: defining a difference level based on a difference between the actual noise and the preset noise; S164: Correlate the difference level, actual noise, and adjustment matching table, and output corresponding adjustment measures; S165: Dynamically adjust the muffler logic according to the adjustment measures and dynamically adjust the actual noise of the engine exhaust; S166: Monitor the actual noise of the engine exhaust in real time and maintain the difference within a preset difference range.

[0041] In an embodiment of the present application, during the silencer stage of the engine exhaust, the actual noise of the engine exhaust is detected; a difference level is defined based on the difference between the actual noise and the preset noise, and dynamic adjustment of the silencer logic is triggered based on the difference level to dynamically adjust the actual noise of the engine exhaust and maintain the difference within a preset difference range, thereby dynamically performing silencer control on the exhaust process of the engine and performing silencer control on the noise during the exhaust process to optimize the noise impact of the engine during the exhaust process.

[0042] At this time, the actual noise and the preset noise are compared, and the difference between the actual noise and the preset noise is defined and introduced to facilitate the control of the difference between the actual noise and the preset noise. Therefore, the difference level is defined based on the difference between the actual noise and the preset noise, and the difference degree between the actual noise and the preset noise is presented through the difference level.

[0043] Furthermore, the difference level, actual noise and adjustment matching table are associated, and corresponding adjustment measures are output, so as to introduce adjustment measures, and then dynamically adjust the silencer logic according to the adjustment measures, and dynamically adjust the actual noise of the engine exhaust; monitor the actual noise of the engine exhaust in real time, and maintain the difference within a preset difference range, so as to dynamically control the silencer control of the engine's exhaust process, and control the noise in the exhaust process, so as to optimize the noise impact of the engine in the exhaust process.

[0044] In an embodiment of the present invention, through the method in the embodiment of the present invention, multiple dynamic parameters of the engine are collected, and the working state of the engine is defined according to the multiple dynamic parameters; in the working state of the engine, the exhaust volume of the engine within a preset time is collected, and an exhaust gradient change diagram is constructed based on the multiple exhaust volumes; each exhaust interval is defined based on the exhaust gradient change diagram, and the exhaust type is determined according to the interval identification of each exhaust interval; environmental parameters of the surrounding environment of the engine are collected, and the environmental type of the environment in which the engine is located is defined, and the noise level is defined according to the environmental type and the exhaust type; based on the noise level and the muffler control table, the muffler logic is defined, and the muffler stage of the engine exhaust is triggered according to the muffler logic; in the muffler stage of the engine exhaust, the actual noise of the engine exhaust is detected; based on the difference between the actual noise and the preset noise, the difference level is defined, and the dynamic adjustment of the muffler logic is triggered based on the difference level, so as to dynamically adjust the actual noise of the engine exhaust, and maintain the difference within the preset difference range, so as to perform dynamic muffler control on the exhaust process of the engine, and perform muffler control on the noise in the exhaust process, so as to optimize the noise impact of the engine in the exhaust process.

[0045] See also Figure 8 , Figure 8 It is a schematic diagram of the structural composition of the engine exhaust muffler detection system in an embodiment of the present invention.

[0046] like Figure 8 As shown, an engine exhaust muffler detection system, the engine exhaust muffler detection system comprises: A collection module 21, used for collecting multiple dynamic parameters of the engine, and defining the working state of the engine according to the multiple dynamic parameters; An exhaust gradient change diagram module 22 is used to collect the exhaust volume of the engine within a preset time when the engine is in a working state, and to construct an exhaust gradient change diagram based on multiple exhaust volumes; An exhaust type module 23, for defining each exhaust interval based on the exhaust gradient change diagram, and determining the exhaust type according to the interval identification of each exhaust interval; The noise level module 24 is used to collect environmental parameters of the surrounding environment of the engine, define the environment type of the engine, and define the noise level according to the environment type and exhaust type; The detection module 25 is used to define the muffler logic based on the noise level and the muffler control table, and trigger the muffler phase of the engine exhaust according to the muffler logic; in the muffler phase of the engine exhaust, detect the actual noise of the engine exhaust; The dynamic adjustment module 26 is used to define a difference level according to the difference between the actual noise and the preset noise, and trigger the dynamic adjustment of the muffler logic based on the difference level to dynamically adjust the actual noise of the engine exhaust and maintain the difference within a preset difference range.

[0047] See also Fig. 9 , refer to the following Fig. 9 The electronic device 40 according to this embodiment of the present invention will be described. Fig. 9 The electronic device 40 shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present invention.

[0048] like Fig. 9 As shown, the electronic device 40 is in the form of a general computing device. The components of the electronic device 40 may include but are not limited to: at least one processing unit 41, at least one storage unit 42, and a bus 43 connecting different system components (including the storage unit 42 and the processing unit 41).

[0049] The storage unit stores program codes, which can be executed by the processing unit 41, so that the processing unit 41 executes the steps according to various exemplary embodiments of the present invention described in the above “Embodiment Method” section of this specification.

[0050] The storage unit 42 may include a readable medium in the form of a volatile storage unit, such as a random access storage unit 421 and / or a cache storage unit 422 , and may further include a read-only storage unit (ROM) 423 .

[0051] The storage unit 42 may also include a program / utility 424 having a set (at least one) of program modules 425, such program modules 425 including but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment.

[0052] Bus 43 may represent one or more of several types of bus structures, including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

[0053] The electronic device 40 may also communicate with one or more external devices (e.g., keyboards, pointing devices, Bluetooth devices, etc.), one or more devices that enable a user to interact with the electronic device 40, and / or any device that enables the electronic device 40 to communicate with one or more other computing devices (e.g., routers, modems, etc.). Such communication may be performed via an input / output (I / O) interface 44. Furthermore, the electronic device 40 may also communicate with one or more networks (e.g., local area networks, wide area networks, and / or public networks, such as the Internet) via a network adapter 45. Fig. 9 As shown, the network adapter 45 communicates with other modules of the electronic device 40 via the bus 43. It should be understood that although Fig. 9 Not shown, other hardware and / or software modules may be used in conjunction with the electronic device 40, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, tape drives, and data backup planning systems.

[0054] Through the description of the above implementation, it is easy for those skilled in the art to understand that the example implementation described here can be implemented by software, or by software combined with necessary hardware. Therefore, the technical solution according to the implementation of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium or on a network, including several instructions to enable a computing device (which can be a personal computer, a server, a terminal device, or a network device, etc.) to execute the method according to the implementation of the present disclosure.

[0055] Those skilled in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, and the storage medium can include: a read-only memory, a random access memory, a disk or an optical disk, etc. In addition, it stores computer program instructions, and when the computer program instructions are executed by a computer, the computer executes the above method.

[0056] In addition, the engine exhaust silencer detection method and system provided in the embodiments of the present invention are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A method for detecting engine exhaust muffler, characterized in that: Applied to the engine exhaust muffler detection scenario; the engine exhaust muffler detection method includes: Collect multiple dynamic parameters of the engine and define the working state of the engine according to the multiple dynamic parameters; When the engine is in a working state, the exhaust volume of the engine within a preset time is collected, and an exhaust gradient change diagram is constructed based on the multiple exhaust volumes; Defining each exhaust interval based on the exhaust gradient change map, and determining the exhaust type according to the interval identification of each exhaust interval; Collect environmental parameters of the surrounding environment of the engine, define the environment type of the engine, and define the noise level according to the environment type and exhaust type; Defining a muffler logic based on the noise level and the muffler control table, and triggering a muffler phase of the engine exhaust according to the muffler logic; detecting actual noise of the engine exhaust during the muffler phase of the engine exhaust; A difference level is defined according to the difference between the actual noise and the preset noise, and dynamic adjustment of the muffler logic is triggered based on the difference level to dynamically adjust the actual noise of the engine exhaust and maintain the difference within a preset difference range.

2. The engine exhaust muffler detection method according to claim 1, characterized in that: The collecting of multiple dynamic parameters of the engine and defining the working state of the engine according to the multiple dynamic parameters include: Collect the location of the engine and locate the detection area according to the location of the engine; Traverse the inspection area and mark the engine; Based on the engine triggering multi-dimensional detection, multiple dynamic parameters of the engine are collected; the multiple dynamic parameters are different types of parameters; Combining multiple dynamic parameters and building multiple dynamic parameter combinations; Define corresponding sub-features based on dynamic parameter combinations and collect multiple features; A matching coefficient is constructed based on the multiple sub-features, and the working state of the engine is defined according to the multiple sub-features, the matching coefficient and the state comparison table.

3. The engine exhaust muffler detection method according to claim 1, characterized in that: The method comprises collecting the exhaust volume of the engine within a preset time under the working state of the engine, and constructing an exhaust gradient change diagram based on multiple exhaust volumes, including: Collect the displayed status of the engine in the display table, and compare the displayed status with the status of the engine; If there is a discrepancy between the displayed state and the state of the engine, a review of the state of the engine is triggered, and the displayed state is adjusted according to the review result to maintain the accuracy of the displayed state; Under the working state of the engine, the exhaust volume of the engine within a preset time is collected; Constructing an exhaust volume set of the engine according to the plurality of exhaust volumes; Associating the exhaust volume set of the engine with the running time of the engine to form an exhaust volume-time combination; An exhaust gradient change diagram is constructed according to multiple exhaust volume-time combinations, wherein change nodes in the exhaust gradient change diagram are marked; the corresponding exhaust volume-time combination is triggered based on the change node, and the data of the exhaust volume-time combination is dynamically checked to ensure the accuracy of the change node.

4. The engine exhaust muffler detection method according to claim 1, characterized in that: The step of defining each exhaust interval based on the exhaust gradient change diagram and determining the exhaust type according to the interval identification of each exhaust interval includes: Fixed frame exhaust gradient change diagram; Divide the exhaust gas gradient change diagram into intervals, and match the corresponding interval range according to the engine model information; Define each exhaust interval based on the exhaust gradient change diagram and the interval range; Associating each exhaust interval and defining the correlation coefficient of each exhaust interval; Based on the correlation coefficient of each exhaust interval, the model information of the engine and each exhaust interval, interval control is performed to control the dynamic balance relationship between each exhaust interval; Based on each exhaust interval, corresponding interval identification is performed and interval coefficients are defined; The exhaust type is defined according to the interval coefficient and the exhaust type table, and each exhaust type is marked at a corresponding position in the exhaust gradient change diagram.

5. The engine exhaust muffler detection method according to claim 4, characterized in that: The environmental parameters of the surrounding environment of the engine are collected, and the environmental type of the engine environment is defined, and the noise level is defined according to the environmental type and the exhaust type, including: Freeze the position of the engine; Detect the surrounding environment based on the location of the engine and define the surrounding environment of the engine; Collecting environmental parameters of the surrounding environment of the engine according to the detection of the surrounding environment of the engine; Divide multiple sub-environment spaces based on the surrounding environment, and associate multiple environmental parameters with corresponding sub-environment spaces respectively; The sub-environment type is defined according to the orientation of the sub-environment space relative to the engine and the environmental parameters in the sub-environment space; Determining the environment type of the environment where the engine is located based on the integration of multiple sub-environment types; An environment type and an exhaust type are associated, and a noise level is defined based on the environment type and the exhaust type.

6. The engine exhaust muffler detection method according to claim 1, characterized in that: The method of defining a muffler logic based on the noise level and the muffler control table, and triggering a muffler phase of the engine exhaust according to the muffler logic; and detecting the actual noise of the engine exhaust during the muffler phase of the engine exhaust, comprises: Noise level rating and noise control table; The noise level and the noise reduction control table are associated, and a plurality of noise reduction logics are determined according to the noise level and the noise reduction control table.

7. The engine exhaust muffler detection method according to claim 6, characterized in that: The method further comprises: defining a muffler logic based on the noise level and the muffler control table, and triggering a muffler phase of the engine exhaust according to the muffler logic; and detecting the actual noise of the engine exhaust during the muffler phase of the engine exhaust. Freeze the engine and perform a component traversal based on the engine and exhaust direction to determine the current muffler accessories; Define the best silencer logic based on the current silencer accessories and multiple silencer logics; Define the silencing means and silencing levels corresponding to the silencing accessories according to the best silencing logic; Triggering the muffler stage of the engine exhaust based on the muffler means and the muffler level; During the muffle phase of the engine exhaust, the actual noise of the engine exhaust is detected.

8. The engine exhaust muffler detection method according to claim 7, characterized in that: Defining a difference level according to the difference between the actual noise and the preset noise, and triggering dynamic adjustment of the muffler logic based on the difference level to dynamically adjust the actual noise of the engine exhaust and maintain the difference within the preset difference range, includes: The actual noise and the preset noise are fixed. At this time, the theoretical exhaust volume specified by the engine and the environmental type of the environment in which the engine is located define the preset noise; The actual noise is compared with the preset noise, and the difference amount between the actual noise and the preset noise is defined.

9. The engine exhaust muffler detection method according to claim 8, characterized in that: The method further includes defining a difference level according to the difference between the actual noise and the preset noise, and triggering dynamic adjustment of the muffler logic based on the difference level to dynamically adjust the actual noise of the engine exhaust and maintain the difference within the preset difference range: defining a difference level based on the amount of difference between the actual noise and the preset noise; Correlate the difference level, actual noise and adjustment matching table, and output corresponding adjustment measures; Dynamically adjust the muffler logic according to the adjustment measures and dynamically adjust the actual noise of the engine exhaust; The actual noise of the engine exhaust is monitored in real time, and the difference is maintained within the preset difference range.

10. An engine exhaust muffler detection system, characterized in that: The engine exhaust muffler detection system is applied to the engine exhaust muffler detection method as claimed in any one of claims 1 to 9, and the engine exhaust muffler detection system comprises: A collection module, used for collecting multiple dynamic parameters of the engine, and defining the working state of the engine according to the multiple dynamic parameters; An exhaust gradient change diagram module is used to collect the exhaust volume of the engine within a preset time when the engine is in a working state, and to construct an exhaust gradient change diagram based on multiple exhaust volumes; An exhaust type module, for defining each exhaust interval based on the exhaust gradient change diagram, and determining the exhaust type according to the interval identification of each exhaust interval; The noise level module is used to collect environmental parameters of the surrounding environment of the engine, define the environmental type of the engine, and define the noise level according to the environmental type and exhaust type; A detection module, used to define a muffler logic based on the noise level and the muffler control table, and trigger a muffler phase of the engine exhaust according to the muffler logic; in the muffler phase of the engine exhaust, detect the actual noise of the engine exhaust; The dynamic adjustment module is used to define a difference level according to the difference between the actual noise and the preset noise, and trigger the dynamic adjustment of the muffler logic based on the difference level to dynamically adjust the actual noise of the engine exhaust and maintain the difference within the preset difference range.

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