CN117418942A - Boost pressure display method and related equipment - Google Patents
Boost pressure display method and related equipment Download PDFInfo
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- CN117418942A CN117418942A CN202311279159.7A CN202311279159A CN117418942A CN 117418942 A CN117418942 A CN 117418942A CN 202311279159 A CN202311279159 A CN 202311279159A CN 117418942 A CN117418942 A CN 117418942A
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- 238000004590 computer program Methods 0.000 claims description 4
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0002—Controlling intake air
- F02D41/0007—Controlling intake air for control of turbo-charged or super-charged engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
According to the boost pressure display method, the boost pressure relative value is determined based on the throttle front boost pressure and the current ambient pressure, the actual air pressure of the external environment is used as a reference factor for final instrument boost pressure display, meanwhile, the boost pressure relative value is subjected to anti-shake processing in a filtering anti-shake processing mode, so that the problem of shake of the boost pressure during display is effectively relieved, the problem of display shake of the boost pressure is effectively solved based on the consideration of the external environment, and the pressure display accuracy of the turbocharger is improved.
Description
Technical Field
The present disclosure relates to the field of information processing technologies, and in particular, to a boost pressure display method and related devices.
Background
In the current larger displacement vehicle type, a supercharged engine is often adopted by the vehicle to improve the dynamic property of the vehicle. In a daily use scene and an off-road scene with a severe external environment, the supercharging pressure of the engine is displayed to intuitively reflect the dynamic property of the vehicle, so that individuation and characterization of man-machine interaction are improved. However, due to different use environments of the vehicle, resonance or vibration occurs between the engine and the supercharging system, obvious shaking change occurs to the supercharging pressure, and visual display is affected.
Therefore, how to solve the problem of accurate visual display of the vehicle boost pressure in the prior art is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
Based on the above problems, in order to solve the problem of accurate visual display of the boost pressure of the vehicle in the prior art, the application provides a boost pressure display method and related equipment.
The embodiment of the application discloses the following technical scheme:
in a first aspect, the present application discloses a boost pressure display method, including:
acquiring front boost pressure and current ambient pressure of a throttle; the throttle front boost pressure is used for representing the air pressure in front of an engine air inlet pipe; the current ambient pressure is used for representing the air pressure intensity of the current environment;
determining a turbocharger boost pressure relative value based on the throttle front boost pressure and the current ambient pressure; the boost pressure relative value is represented by a turbo boost signal;
and filtering and debouncing the turbocharging signal to obtain a filtered charging signal corresponding to the turbocharging signal, and displaying the charging pressure of the turbocharger based on the filtered charging signal.
Optionally, after determining the relative value of the boost pressure of the turbocharger based on the pre-throttle boost pressure and the current ambient pressure, the method further includes:
acquiring a pressure waveform diagram of the turbocharger according to the relative value of the boost pressure of the turbocharger;
and performing fault detection on the turbocharger based on the pressure waveform diagram of the turbocharger.
Optionally, the performing fault detection on the turbocharger based on the pressure waveform diagram of the turbocharger specifically includes:
matching the pressure waveform diagram of the turbocharger with a preset pressure waveform diagram to obtain the graph matching degree of the pressure waveform diagram of the turbocharger and the preset pressure waveform diagram;
and if the pattern matching degree is lower than a preset threshold value, indicating that the turbocharger has faults, and generating a fault alarm signal.
Optionally, after filtering and debouncing the turbocharger signal to obtain a filtered boost signal corresponding to the turbocharger signal, the method further includes:
carrying out peak processing on the filtered supercharging signal to obtain a filtered supercharging signal after peak processing; the peak processing includes maximum processing and minimum processing of the filtered boost signal.
Optionally, the filtering and anti-shake processing is performed on the turbo boost signal to obtain a filtered boost signal corresponding to the turbo boost signal, which specifically includes:
performing amplitude limiting filtering processing on the turbocharging signal to obtain a filtered charging signal corresponding to the turbocharging signal;
the step of performing clipping filtering processing on the turbo boost signal to obtain a filtered boost signal corresponding to the turbo boost signal specifically includes:
determining an amount of change in the boost pressure relative value over a preset time interval based on the turbocharger signal;
if the variation of the boost pressure relative value in the preset time interval is larger than a preset threshold value, carrying out threshold processing on the boost pressure relative value to obtain the filtering boost signal; the filtering boost signal is used for representing the boost pressure relative value after the amplitude limiting filtering treatment; and the variation of the boost pressure relative value after the amplitude limiting filtering processing in the preset time interval is not more than the preset threshold value.
Optionally, the step of displaying the boost pressure of the turbocharger based on the filtered boost signal specifically includes:
sending the filtered boost signal to an instrument display end;
and controlling the instrument display end to perform visualization processing on the filtered boost signal, and displaying the boost pressure of the turbocharger at the instrument display end.
Optionally, before the step of obtaining the pre-throttle boost pressure and the current ambient pressure, the method further includes:
determining whether the turbocharger is in an activated state;
if the turbocharger is not in the activated state, the boost pressure of the turbocharger is determined to be zero.
In a second aspect, the present application discloses a boost pressure display device comprising:
the first acquisition module acquires front throttle boost pressure and current ambient pressure; the throttle front boost pressure is used for representing the air pressure in front of an engine air inlet pipe; the current ambient pressure is used for representing the air pressure intensity of the current environment;
a first determination module for determining a boost pressure relative value of a turbocharger based on the pre-throttle boost pressure and the current ambient pressure; the boost pressure relative value is represented by a turbo boost signal;
and the anti-shake display module is used for carrying out filtering anti-shake processing on the turbocharging signal to obtain a filtering charging signal corresponding to the turbocharging signal, and displaying the charging pressure of the turbocharger based on the filtering charging signal.
In a third aspect, the present application discloses an electronic device comprising:
a memory for storing a calculator program;
and a processor for implementing the steps of the boost pressure display method when executing the computer program.
In a fourth aspect, the application discloses a vehicle comprising the electronic device.
Compared with the prior art, the application has the following beneficial effects: the application provides a boost pressure display method and related equipment, wherein in the method for displaying boost pressure by an instrument screen provided by the application, the boost pressure before a throttle and the current ambient pressure are firstly obtained; the throttle front boost pressure is used for representing the air pressure in front of an engine air inlet pipe; the current ambient pressure is used to represent the barometric pressure of the current environment. And determining a turbocharger boost pressure relative value based on the throttle front boost pressure and the current ambient pressure; the boost pressure relative value is represented by a turbocharger signal. And finally, filtering and debouncing the turbocharging signal to obtain a filtered turbocharging signal corresponding to the turbocharging signal, and displaying the turbocharging pressure of the turbocharger based on the filtered turbocharging signal. According to the method, the relative value of the boost pressure is determined based on the front boost pressure of the throttle and the current ambient pressure, the actual air pressure of the external environment is used as a reference factor for displaying the boost pressure of the final instrument, and meanwhile, the relative value of the boost pressure is subjected to anti-shake processing in a filtering anti-shake processing mode, so that the problem of display shake existing in the display of the boost pressure in the instrument screen is effectively solved, and the display accuracy of the turbocharger in the instrument display screen is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a schematic flow chart of a boost pressure display method according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a boost pressure display device according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a boost pressure display electronic device according to an embodiment of the present application.
Detailed Description
Along with the rapid development of modern automobile technology, more and more automobiles directly adopt a liquid crystal instrument panel as a display main body of an automobile instrument panel, and the automobile instrument panel is used as information display equipment commonly adopted in modern automobiles, can convert electric signals in the automobiles into images or texts, and can be displayed in the instrument panel in a visual mode, so that various running parameter information of the automobiles can be directly displayed. Compared with the traditional mechanical watch, the display main body of the automobile instrument panel, which is used as the display main body of the automobile instrument panel, has the advantages of simple structure, rich content, flexible display form and the like.
In the current large-displacement vehicle type, a supercharged engine is often adopted by the vehicle, so that the supercharged pressure of the supercharged engine of the vehicle is displayed in daily use scenes and off-road scenes with severe external environments, and the power change of the engine can be intuitively presented for a user. However, in the current display of the supercharged engine, when the vehicle runs in an off-road scene with a severe external environment, the severe environment promotes the vehicle to run under a high load condition, so that the engine and the supercharging system generate resonance or vibration, and the corresponding displayed supercharging pressure also generates obvious shaking, so that the condition of the supercharging pressure of the vehicle cannot be accurately displayed.
Therefore, how to solve the problem of accurate visual display of the vehicle boost pressure in the prior art is a technical problem that needs to be solved by those skilled in the art.
In order to solve the above problems, the present application provides a boost pressure display method and related devices, where in the method for displaying boost pressure on an instrument panel provided in the present application, the boost pressure before a throttle and the current ambient pressure are first obtained; the throttle front boost pressure is used for representing the air pressure in front of an engine air inlet pipe; the current ambient pressure is used to represent the barometric pressure of the current environment. And determining a turbocharger boost pressure relative value based on the throttle front boost pressure and the current ambient pressure; the boost pressure relative value is represented by a turbocharger signal. And finally, filtering and debouncing the turbocharging signal to obtain a filtered turbocharging signal corresponding to the turbocharging signal, and displaying the turbocharging pressure of the turbocharger based on the filtered turbocharging signal.
According to the method, the relative value of the boost pressure is determined based on the front boost pressure of the throttle and the current ambient pressure, the actual air pressure of the external environment is used as a reference factor for displaying the boost pressure of the final instrument, and meanwhile, the relative value of the boost pressure is subjected to anti-shake processing in a filtering anti-shake processing mode, so that the problem of display shake existing in the display of the boost pressure in the instrument screen is effectively solved, and the display accuracy of the turbocharger in the instrument display screen is improved.
In order to make the present application solution better understood by those skilled in the art, the following description will clearly and completely describe the technical solution in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
Method embodiment
Referring to fig. 1, the flow chart of a boost pressure display method provided in the embodiment of the present application specifically includes the following steps:
the boost pressure display method is applied to a boost system comprising a turbocharger, wherein the boost system is used for increasing the air inlet pressure and the air inlet density of an engine so as to improve the power and the performance of the engine. Which increases engine intake pressure and intake air density through a turbocharger and related components, thereby improving engine power and performance.
S101: acquiring front boost pressure and current ambient pressure of a throttle; the throttle front boost pressure is used for representing the air pressure in front of an engine air inlet pipe; the current ambient pressure is used to represent the barometric pressure of the current environment.
In displaying the vehicle boost pressure, the throttle front boost pressure and the current ambient pressure need to be acquired first. The pre-throttle boost pressure refers to air located in front of the engine intake pipe in the vehicle's turbocharger system. The turbo-charging system increases the engine intake air amount by using a turbo-mechanical driver, thereby increasing the efficiency and power output of the automobile engine.
When an automobile engine is running, intake air enters the intake port of the turbocharger and turns the turbine shaft through the turbine blades. The rotation of the turbine shaft is connected with a compressor wheel of the supercharger through a connecting rod, and compressed air is sent into an air inlet channel of the engine. In a turbocharger system, the pre-boost pressure, i.e., the pre-throttle boost pressure, determines the effect of the turbocharger compressing air, which in turn affects the power output of the engine.
While the current ambient pressure is used to represent the air pressure level in a particular environment, the ambient pressure is limited by altitude, weather conditions, and other factors. Based on the current ambient pressure and the boost pressure of the throttle valve, the air pressure condition of the current vehicle environment can be accurately known, so that a specific boost pressure value can be determined according to the specific condition of the current air pressure.
S102: determining a turbocharger boost pressure relative value based on the throttle front boost pressure and the current ambient pressure; the boost pressure relative value is represented by a turbocharger signal.
After the pre-throttle pressure and the current ambient pressure are obtained, a relative boost pressure value for the launch is calculated based on both. Wherein boost pressure relative value = throttle front boost pressure-current ambient pressure; by this equation, the relative value of the boost pressure of the turbocharger can be calculated.
The boost relative value is typically used to indicate the boost effect and the operating state of the boost system. Normally, the boost relative value should be greater than zero, indicating that the boost system has successfully increased the intake air pressure. The higher the boost relative value, the more efficient the boost system can provide a higher intake pressure to the engine, thereby improving power output and performance. Therefore, the relative value of the boost pressure of the turbocharger is taken as the boost pressure displayed later in the application, so that the pressure gain and the working state of the vehicle boost system can be accurately reflected.
S103: and filtering and debouncing the turbocharging signal to obtain a filtered charging signal corresponding to the turbocharging signal, and displaying the charging pressure of the turbocharger based on the filtered charging signal.
After the turbo boost signal representing the relative value of the turbo boost pressure is obtained, filtering and anti-shake processing are carried out on the turbo boost signal, so that the fluctuation amplitude of the relative value of the turbo boost pressure is reduced.
Specifically, when the filtering and jitter elimination processing is carried out, the filtering and jitter elimination processing is mainly carried out in a clipping and filtering mode,
clipping filtering suppresses the effects of noise or outliers by primarily limiting the amplitude range of the data, thereby maintaining the data within a specified range. The clipping filtering is suitable for application scenes in which data values are ensured to be within a specific range, such as sensor data acquisition, real-time system control and the like. It can effectively eliminate abnormal noise or interference signals, but may cause data loss information or signal distortion. However, when clipping filtering is used as a filtering and debounce processing method, an appropriate amplitude range needs to be determined according to the system requirements of a specific supercharging system and the characteristics of input data. If the limit range is too small, legal data may be misjudged as an abnormal value; if the limit is too large, noise or outliers may not be effectively filtered out. Therefore, reasonably setting the amplitude range is critical to using clipping filtering.
In the process of carrying out amplitude limiting filtering treatment on the turbo charging signal to obtain a corresponding filtering pressurizing signal, the method can be mainly realized through the following two steps:
step one, determining the variation of the boost pressure relative value in a preset time interval based on the turbo boost signal;
step two, if the variation of the boost pressure relative value in a preset time interval is larger than a preset threshold value, carrying out threshold processing on the boost pressure relative value to obtain the filtering boost signal; the filtering boost signal is used for representing the boost pressure relative value after the amplitude limiting filtering treatment; and the variation of the boost pressure relative value after the amplitude limiting filtering processing in the preset time interval is not more than the preset threshold value.
In the process of carrying out limiting filtering, firstly, the variation of the relative value of the boost pressure in a preset time interval is determined based on the turbo boost signal, so that the numerical fluctuation condition of the relative value of the boost pressure in a certain time period is determined. And then processing the variable quantity of the relative value of the supercharging pressure in a preset time interval based on the variable quantity of the relative value of the supercharging pressure in the preset time interval, if the variable quantity of the relative value of the supercharging pressure in the preset time interval is larger than a preset threshold value, carrying out threshold processing on the relative value of the supercharging pressure, reducing the variable amplitude of the relative value of the supercharging pressure in the preset time interval, enabling the variable quantity of the relative value of the supercharging pressure in the preset time interval not to be larger than the preset threshold value, and representing the relative value of the supercharging pressure after amplitude limiting filtering processing by filtering supercharging signals. The variation of the relative value of the supercharging pressure in the preset time interval is limited, so that the pressure fluctuation condition of the relative value of the supercharging pressure in a certain time period can be effectively reduced, the supercharging pressure is stably displayed, and the follow-up shaking condition of the supercharging pressure when the supercharging pressure is displayed on the instrument screen based on the relative value of the supercharging pressure is effectively avoided. The preset time interval may be a short time, such as 1ms, which is not specifically limited herein.
After the filtering and jitter elimination processing of the supercharging signals is completed, the corresponding filtering supercharging signals are obtained, and meanwhile, the supercharging pressure of the turbocharger is displayed based on the filtering supercharging signals.
As an alternative embodiment, after step S102, the following two steps are further included:
step one, acquiring a pressure waveform diagram of the turbocharger according to a boost pressure relative value of the turbocharger;
and step two, performing fault detection on the turbocharger based on a pressure waveform diagram of the turbocharger.
After the relative value of the boost pressure of the turbocharger is determined, a pressure waveform diagram corresponding to the relative value of the boost pressure can be drawn according to the relative value of the boost pressure of the turbocharger, and the pressure waveform diagram is used as a basis for fault detection of the turbocharger, so that problems and changes in the turbocharger can be effectively analyzed and monitored through the pressure waveform diagram. It should be noted that the pressure waveform is not amplitude only, but also includes other important information such as frequency and phase. The amplitude refers to the amplitude of the waveform, which represents the amplitude of the pressure change, and the frequency refers to the number of periodic repetitions of the waveform, which represents the rate of the pressure change, and the phase represents the starting position of the waveform, which represents the relative time of the pressure change.
The pressure waveform diagram of the turbocharger is determined, and the turbocharger is subjected to fault detection based on the pressure waveform diagram, so that the turbocharger in the supercharging system can be subjected to real-time fault detection according to the detected supercharging pressure in the running process of the vehicle, and the running stability of the supercharging system of the vehicle is ensured.
As another alternative embodiment, in the process of performing fault detection on the turbocharger based on the pressure waveform diagram of the turbocharger, the following two steps may be specifically implemented:
step one, matching a pressure waveform diagram of the turbocharger with a preset pressure waveform diagram to obtain the graph matching degree of the pressure waveform diagram of the turbocharger and the preset pressure waveform diagram;
and step two, if the pattern matching degree is lower than a preset threshold value, indicating that the turbocharger has faults, and generating a fault alarm signal.
In the process of detecting the fault of the turbocharger based on the pressure waveform diagram of the turbocharger, the preset pressure waveform diagram and the pressure waveform diagram of the current turbocharger can be matched with each other, and whether the turbocharger has the fault or not can be judged according to the matching degree between the preset pressure waveform diagram and the pressure waveform diagram of the current turbocharger.
In an actual application scenario, different possible fault types are corresponding to different changes of the pressure waveform diagram:
unstable or fluctuating pressure waveforms: if there is a severe fluctuation, heave or instability in the pressure waveform, this may indicate turbocharger problems such as imbalance of rotating parts, impeller damage or exhaust gas conduit leakage.
Abnormal frequency of pressure waveform: if the frequency of the pressure waveform does not match the normal operating range, it may indicate that the turbocharger impeller is problematic, possibly with blade bending, breakage or blockage. Frequency deviations from the normal range may lead to reduced performance or increased noise.
Pressure waveform amplitude variation: if the amplitude of the pressure waveform changes significantly, such as suddenly decreasing or increasing, it may indicate a turbocharger failure, such as a pressure control system failure, a supercharger internal leak, or a wheel damage , etc.
Pressure waveform delay or phase change: if the starting point position of the pressure waveform changes or delays are not in accordance with normal conditions, it may be indicative of a malfunction of the rotating parts of the turbocharger or abnormal exhaust gas recirculation.
The pattern matching degree between the preset pressure waveform diagram and the pressure waveform diagram of the current turbocharger can reflect the difference degree between the current pressure waveform diagram and the conventional pressure waveform diagram, when the pattern matching degree is lower than a preset threshold value, the turbocharger is indicated to have faults, and corresponding fault alarm signals are generated and displayed to a user through an instrument panel of the vehicle, so that the user is informed of possible fault risks in time. The specific fault type can be determined by self according to the specific difference between the pressure waveform diagram and the preset pressure waveform diagram.
As another alternative embodiment, after step S103, the method further includes the following steps:
step one, carrying out peak processing on the filtered supercharging signal to obtain a filtered supercharging signal after peak processing; the peak processing includes maximum processing and minimum processing of the filtered boost signal.
After the filtered boost signal used for representing the boost pressure relative value is obtained, the peak value can be processed, and the maximum value and the minimum value of the boost pressure relative value in the filtered boost signal are calibrated, so that the numerical jitter condition of the boost pressure relative value is further reduced, the condition of the boost pressure display jitter can be better avoided when the boost pressure is displayed through the instrument screen, and the accuracy of the boost pressure display based on the instrument screen is improved.
As another alternative embodiment, the step of displaying the boost pressure of the turbocharger based on the filtered boost signal specifically includes the steps of:
step one, the filtered boosting signal is sent to an instrument display end;
and step two, controlling the instrument display end to perform visualization processing on the filtered boost signal, and displaying the boost pressure of the turbocharger at the instrument display end.
In the process of displaying the boost pressure of the turbocharger based on the filtered boost signal, the filtered boost signal is sent to an instrument display end in the vehicle, the instrument display end performs visual processing on the filtered boost signal according to the received filtered boost signal through a display driving module in the instrument display end, so that the filtered boost signal is converted into a digital form displayed in an instrument screen to display the boost pressure on the instrument screen, meanwhile, the boost pressure is derived from the filtered boost signal subjected to filtering anti-shake processing, and the display shake of data of the boost pressure is relieved, so that the display accuracy of the boost pressure of the turbocharger in the instrument display screen is improved.
As another alternative embodiment, before step S101, the following two steps are further included:
step one, determining whether the turbocharger is in an activated state;
and step two, if the turbocharger is not in the activated state, determining that the boost pressure of the turbocharger is zero.
It is also desirable to determine whether the turbocharger in its boost system is active before the pre-throttle boost pressure is obtained, as well as the current ambient pressure. If the turbocharger is not in the activated state at this time, it indicates that the turbocharger is not in the starting state at this time, that is, no boost pressure is generated, and the corresponding boost pressure displayed on the meter display end is 0. Therefore, when the turbocharger is detected not to be in an activated state, the boost pressure display of the turbocharger can be completed by directly determining that the boost pressure correspondingly displayed is zero, the subsequent steps are not needed to determine the boost pressure of the turbocharger, and the efficiency of the boost pressure display is improved.
The embodiment of the application provides a boost pressure display method, in which boost pressure before a throttle and current ambient pressure are firstly obtained; the throttle front boost pressure is used for representing the air pressure in front of an engine air inlet pipe; the current ambient pressure is used to represent the barometric pressure of the current environment. And determining a turbocharger boost pressure relative value based on the throttle front boost pressure and the current ambient pressure; the boost pressure relative value is represented by a turbocharger signal. And finally, filtering and debouncing the turbocharging signal to obtain a filtered turbocharging signal corresponding to the turbocharging signal, and displaying the turbocharging pressure of the turbocharger based on the filtered turbocharging signal. According to the method, the relative value of the boost pressure is determined based on the front boost pressure of the throttle and the current ambient pressure, the actual air pressure of the external environment is used as a reference factor for displaying the boost pressure of the final instrument, and meanwhile, the relative value of the boost pressure is subjected to anti-shake processing in a filtering anti-shake processing mode, so that the problem of display shake existing in the display of the boost pressure in the instrument screen is effectively solved, and the display accuracy of the turbocharger in the instrument display screen is improved.
Device embodiment
Referring to fig. 2, the schematic structural diagram of a boost pressure display device according to an embodiment of the present application specifically includes the following modules:
a first acquisition module 100 for acquiring a pre-throttle boost pressure and a current ambient pressure; the throttle front boost pressure is used for representing the air pressure in front of an engine air inlet pipe; the current ambient pressure is used for representing the air pressure intensity of the current environment;
a first determination module 200 for determining a turbocharger boost pressure relative value based on the pre-throttle boost pressure and the current ambient pressure; the boost pressure relative value is represented by a turbo boost signal;
and the anti-shake display module 300 is configured to perform filtering anti-shake processing on the turbocharger signal, obtain a filtered boost signal corresponding to the turbocharger signal, and display the boost pressure of the turbocharger based on the filtered boost signal.
Optionally, the device for displaying boost pressure by the meter screen further includes: a fault detection module; the fault detection module is specifically configured to:
acquiring a pressure waveform diagram of the turbocharger according to the relative value of the boost pressure of the turbocharger;
and performing fault detection on the turbocharger based on the pressure waveform diagram of the turbocharger.
Optionally, the performing fault detection on the turbocharger based on the pressure waveform diagram of the turbocharger specifically includes:
matching the pressure waveform diagram of the turbocharger with a preset pressure waveform diagram to obtain the graph matching degree of the pressure waveform diagram of the turbocharger and the preset pressure waveform diagram;
and if the pattern matching degree is lower than a preset threshold value, indicating that the turbocharger has faults, and generating a fault alarm signal.
Optionally, the device for displaying boost pressure by the meter screen further includes: a peak processing module; the peak processing module is specifically configured to:
carrying out peak processing on the filtered supercharging signal to obtain a filtered supercharging signal after peak processing; the peak processing includes maximum processing and minimum processing of the filtered boost signal.
Optionally, the anti-shake display module 300 is specifically configured to:
performing amplitude limiting filtering processing on the turbocharging signal to obtain a filtered charging signal corresponding to the turbocharging signal;
the step of performing clipping filtering processing on the turbo boost signal to obtain a filtered boost signal corresponding to the turbo boost signal specifically includes:
determining an amount of change in the boost pressure relative value over a preset time interval based on the turbocharger signal;
if the variation of the boost pressure relative value in the preset time interval is larger than a preset threshold value, carrying out threshold processing on the boost pressure relative value to obtain the filtering boost signal; the filtering boost signal is used for representing the boost pressure relative value after the amplitude limiting filtering treatment; and the variation of the boost pressure relative value after the amplitude limiting filtering processing in the preset time interval is not more than the preset threshold value.
Optionally, the anti-shake display module 300 is specifically configured to:
sending the filtered boost signal to an instrument display end;
and controlling the instrument display end to perform visualization processing on the filtered boost signal, and displaying the boost pressure of the turbocharger at the instrument display end.
Optionally, the boost pressure display device further includes: a second determination module; the second determining module is specifically configured to:
determining whether the turbocharger is in an activated state;
if the turbocharger is not in the activated state, the boost pressure of the turbocharger is determined to be zero.
Electronic device embodiment
Referring to fig. 3, the structure of a boost pressure display electronic device according to an embodiment of the present application includes:
a memory 11 for storing a computer program;
a processor 12 for implementing the steps of a boost pressure display method according to any of the method embodiments described above when executing the computer program.
In this embodiment, the device may be a vehicle-mounted computer, a PC (Personal Computer ), or a terminal device such as a smart phone, a tablet computer, a palm computer, or a portable computer.
The device may include a memory 11, a processor 12, and a bus 13.
The memory 11 includes at least one type of readable storage medium including flash memory, a hard disk, a multimedia card, a card memory (e.g., SD or DX memory, etc.), a magnetic memory, a magnetic disk, an optical disk, etc. The memory 11 may in some embodiments be an internal storage unit of the device, such as a hard disk of the device. The memory 11 may in other embodiments also be an external storage device of the device, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash Card (Flash Card) or the like, which are provided on the device. Further, the memory 11 may also include both an internal storage unit of the device and an external storage device. The memory 11 may be used not only for storing application software installed in the device and various types of data, such as program codes for executing a failure prediction method, etc., but also for temporarily storing data that has been output or is to be output. The processor 12 may be a central processing unit (Central Processing Unit, CPU) in some embodiments.
The processor 12 may in some embodiments be a central processing unit (Central Processing unit, CPU), controller, microcontroller, microprocessor or other data processing chip for executing program code or processing data stored in the memory 11, such as program code for performing a fault prediction method, etc.
The bus 13 may be a peripheral component interconnect standard (peripheral component interconnect, PCI) bus, or an extended industry standard architecture (extended industry standard architecture, EISA) bus, among others. The bus may be classified as an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in fig. 3, but not only one bus or one type of bus.
Further, the device may also include a network interface 14, and the network interface 14 may optionally include a wired interface and/or a wireless interface (e.g., WI-FI interface, bluetooth interface, etc.), typically used to establish a communication connection between the device and other electronic devices.
Optionally, the device may further comprise a user interface 15, the user interface 15 may comprise a Display (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 15 may further comprise a standard wired interface, a wireless interface. Alternatively, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (Organic Light-Emitting Diode) touch, or the like. The display may also be referred to as a display screen or display unit, as appropriate, for displaying information processed in the device and for displaying a visual user interface.
Fig. 3 shows only a device having components 11-15, it will be understood by those skilled in the art that the configuration shown in fig. 3 is not limiting of the device and may include fewer or more components than shown, or may combine certain components, or a different arrangement of components.
Vehicle embodiment
The embodiment of the application also provides a vehicle which comprises the memory and the processor in the embodiment of the electronic equipment.
It should be noted that, in the present specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment is mainly described in a different point from other embodiments. In particular, for the method apparatus, the electronic device and the vehicle, since they are substantially similar to the method embodiments, the description is relatively simple, and the relevant points are referred to in the description of the method embodiments. The method device, the electronic apparatus and the vehicle described above are only schematic, wherein the units described as separate parts may or may not be physically separated, and the parts as unit prompts may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
The foregoing is merely one specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A boost pressure display method, characterized by comprising:
acquiring front boost pressure and current ambient pressure of a throttle; the throttle front boost pressure is used for representing the air pressure in front of an engine air inlet pipe; the current ambient pressure is used for representing the air pressure intensity of the current environment;
determining a turbocharger boost pressure relative value based on the throttle front boost pressure and the current ambient pressure; the boost pressure relative value is represented by a turbo boost signal;
and filtering and debouncing the turbocharging signal to obtain a filtered charging signal corresponding to the turbocharging signal, and displaying the charging pressure of the turbocharger based on the filtered charging signal.
2. The method of claim 1, wherein the determining a turbocharger boost pressure relative value based on the pre-throttle boost pressure and the current ambient pressure further comprises:
acquiring a pressure waveform diagram of the turbocharger according to the relative value of the boost pressure of the turbocharger;
and performing fault detection on the turbocharger based on the pressure waveform diagram of the turbocharger.
3. The method according to claim 2, wherein the fault detection of the turbocharger based on the pressure waveform diagram of the turbocharger specifically comprises:
matching the pressure waveform diagram of the turbocharger with a preset pressure waveform diagram to obtain the graph matching degree of the pressure waveform diagram of the turbocharger and the preset pressure waveform diagram;
and if the pattern matching degree is lower than a preset threshold value, indicating that the turbocharger has faults, and generating a fault alarm signal.
4. The method of claim 1, wherein the filtering the turbo boost signal to obtain a filtered boost signal corresponding to the turbo boost signal further comprises:
carrying out peak processing on the filtered supercharging signal to obtain a filtered supercharging signal after peak processing; the peak processing includes maximum processing and minimum processing of the filtered boost signal.
5. The method according to claim 1, wherein the filtering and debouncing the turbocharger signal to obtain a filtered boost signal corresponding to the turbocharger signal, specifically comprises:
performing amplitude limiting filtering processing on the turbocharging signal to obtain a filtered charging signal corresponding to the turbocharging signal;
the step of performing clipping filtering processing on the turbo boost signal to obtain a filtered boost signal corresponding to the turbo boost signal specifically includes:
determining an amount of change in the boost pressure relative value over a preset time interval based on the turbocharger signal;
if the variation of the boost pressure relative value in the preset time interval is larger than a preset threshold value, carrying out threshold processing on the boost pressure relative value to obtain the filtering boost signal; the filtering boost signal is used for representing the boost pressure relative value after the amplitude limiting filtering treatment; and the variation of the boost pressure relative value after the amplitude limiting filtering processing in the preset time interval is not more than the preset threshold value.
6. The method according to claim 1, wherein said displaying the boost pressure of the turbocharger based on the filtered boost signal, in particular comprises:
sending the filtered boost signal to an instrument display end;
and controlling the instrument display end to perform visualization processing on the filtered boost signal, and displaying the boost pressure of the turbocharger at the instrument display end.
7. The method of claim 1, wherein prior to the obtaining the pre-throttle boost pressure and the current ambient pressure, further comprising:
determining whether the turbocharger is in an activated state;
if the turbocharger is not in the activated state, the boost pressure of the turbocharger is determined to be zero.
8. A boost pressure display apparatus, characterized by comprising:
the first acquisition module acquires front throttle boost pressure and current ambient pressure; the throttle front boost pressure is used for representing the air pressure in front of an engine air inlet pipe; the current ambient pressure is used for representing the air pressure intensity of the current environment;
a first determination module for determining a boost pressure relative value of a turbocharger based on the pre-throttle boost pressure and the current ambient pressure; the boost pressure relative value is represented by a turbo boost signal;
and the anti-shake display module is used for carrying out filtering anti-shake processing on the turbocharging signal to obtain a filtering charging signal corresponding to the turbocharging signal, and displaying the charging pressure of the turbocharger based on the filtering charging signal.
9. An electronic device, comprising:
a memory for storing a calculator program;
a processor for implementing the steps of the boost pressure display method according to any one of claims 1 to 7 when executing the computer program.
10. A vehicle comprising the electronic device of claim 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311279159.7A CN117418942A (en) | 2023-09-28 | 2023-09-28 | Boost pressure display method and related equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311279159.7A CN117418942A (en) | 2023-09-28 | 2023-09-28 | Boost pressure display method and related equipment |
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