CN114687871B - Method and device for adjusting air intake mode - Google Patents

Method and device for adjusting air intake mode Download PDF

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Publication number
CN114687871B
CN114687871B CN202011639065.2A CN202011639065A CN114687871B CN 114687871 B CN114687871 B CN 114687871B CN 202011639065 A CN202011639065 A CN 202011639065A CN 114687871 B CN114687871 B CN 114687871B
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China
Prior art keywords
vehicle
air inlet
air
state
intake
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CN202011639065.2A
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CN114687871A (en
Inventor
翁耳楠
王惠敏
孙岩
窦春楠
王杰
张聪
刘曙铭
韩严胜
管振海
李宗�
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Great Wall Motor Co Ltd
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Great Wall Motor Co Ltd
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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
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/04—Engine intake system parameters
    • F02D2200/0414—Air temperature
    • 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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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

The application discloses a method and a device for adjusting an air inlet mode, and relates to the technical field of vehicles. The method comprises the following steps: acquiring the running state of the vehicle and the environmental information of the environment where the vehicle is located; determining an operation instruction for the air inlet adjusting system according to the running state of the vehicle and the environmental information; and controlling the driving motor to adjust the respective opening and closing states of the outer air inlet baffle and the inner air inlet baffle according to the operation instruction. The application judges the running state of the vehicle and the environmental information of the environment where the vehicle is located, and the opening and closing states of the air inlet baffle and the air outlet baffle are adjusted according to different judgment results, so that different requirements of the vehicle under multiple scenes are met, and the safety of the whole vehicle is improved.

Description

Method and device for adjusting air inlet mode
Technical Field
The invention relates to the technical field of vehicles, in particular to a method and a device for adjusting an air inlet mode.
Background
With the development of vehicles, the air intake system of the vehicle plays a role of delivering air to the engine for the normal operation of the engine.
In the prior art, an air inlet of an air inlet system of a vehicle is in a completely open state, and air enters an air inlet pipeline system through the air inlet of the air inlet system of the vehicle and is conveyed to an engine system to be operated by the engine.
However, in the process of implementing the present application, the inventors found that at least the following problems exist in the prior art:
when the vehicle is in a severe cold area, low-temperature severe cold air directly enters the air inlet pipeline system, and can cause the crankcase ventilation pipe of the engine to be frozen. When the vehicle is in daily parking and is statically evaporated, oil molecules in the air inlet pipeline system can be emitted to the atmosphere through the air inlet, so that pollution is caused. When the vehicle is in a heavy-load high-altitude area, air is thin, and therefore engine combustion efficiency is low. When the vehicle is in a rainy region, high-humidity air enters the air inlet pipeline system, and the engine is flamed and shaken. Namely, the air intake system in the prior art has a single air intake mode, cannot meet different requirements of the vehicle in multiple scenes, and is low in overall safety.
Disclosure of Invention
In view of this, the present invention provides a method and a device for adjusting an intake mode, so as to solve the problems that in the prior art, an intake mode unit of an intake system of a vehicle cannot meet different requirements of the vehicle in multiple scenes, and the safety of the entire vehicle is low.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a method for adjusting an intake mode, which is applied to a vehicle, where the vehicle includes: the air inlet pipeline system is connected with the engine system; characterized in that the vehicle further comprises: the air inlet adjusting device is arranged at one end of an air inlet of the air inlet pipeline system; the air intake port adjustment device includes: the air conditioner comprises a driving motor, an outer air inlet baffle and an inner air inlet baffle, wherein the driving motor is used for controlling the outer air inlet baffle and the inner air inlet baffle, the outer air inlet baffle faces the outside of a cabin of the vehicle, and the inner air inlet baffle faces the inside of the cabin of the vehicle; the method comprises the following steps:
acquiring the running state of the vehicle and the environmental information of the environment where the vehicle is located;
determining an operation instruction for the air inlet adjusting system according to the running state of the vehicle and the environmental information;
and controlling the driving motor to adjust the respective opening and closing states of the outer air inlet baffle and the inner air inlet baffle according to the operation instruction.
Optionally, the environmental information comprises an intake air quantity status of the intake air pipe system and/or a temperature of air in the intake air pipe system.
Optionally, the determining an operation instruction for the air intake adjusting system according to the running state of the vehicle and the environmental information includes:
and when the running state is an engine starting state, the temperature is greater than or equal to a preset temperature threshold value, and the air inflow state is an air flow state, determining that the operation instruction is to open the outer air inlet baffle and keep the inner air inlet baffle in a closed state.
Optionally, the determining an operation instruction to the air intake adjusting system according to the running state of the vehicle and the environmental information includes:
and when the running state is an engine starting state and the temperature is less than a preset temperature threshold value, determining that the operation instruction is to keep the outer air inlet baffle in a closed state and open the inner air inlet baffle.
Optionally, after controlling the driving motor to adjust the respective open/close states of the outer intake baffle and the inner intake baffle according to the operation command, the method further includes:
and under the condition that the temperature is recovered to be greater than or equal to the preset temperature threshold value, determining that the operation instruction is to open the outer air inlet baffle and close the inner air inlet baffle.
Optionally, the determining an operation instruction for the air intake adjusting system according to the running state of the vehicle and the environmental information includes:
and under the condition that the running state is an engine stop working state and the air intake amount state is no air flow, determining that the operation instruction is to close the outer air inlet baffle and the inner air inlet baffle.
Optionally, the determining an operation instruction to the air intake adjusting system according to the running state of the vehicle and the environmental information includes:
and under the condition that the engine load of the vehicle is greater than a preset load threshold value and the air intake quantity state is smaller than a preset air intake quantity threshold value, determining that the operation instruction is to open the outer air intake baffle and the inner air intake baffle.
Optionally, the determining an operation instruction for the air intake adjusting system according to the running state of the vehicle and the environmental information includes:
and under the condition that the running state is that the vehicle is in a running state and the temperature fluctuation range in a first time period exceeds a preset fluctuation range, determining that the operation command is to close the outer air intake flap and open the inner air intake flap.
Optionally, after controlling the driving motor to adjust the respective open/close states of the outer intake baffle and the inner intake baffle according to the operation command, the method further includes:
determining the operation command to open the outer intake damper and close the inner intake damper in a case where the fluctuation range of the temperature is within the preset fluctuation range in a second time period after the first time period.
Optionally, in case the vehicle is of the turbocharged vehicle type, a temperature sensor for detecting the temperature is provided in an intercooler pipe at an end near the engine system; in the case where the vehicle is a naturally aspirated vehicle type, a temperature sensor for detecting the temperature is provided in the engine system at a position close to an intake pipe.
In a second aspect, an embodiment of the present invention further provides an apparatus for adjusting an intake mode, where the apparatus is applied to a vehicle, and the vehicle includes: the air inlet pipeline system is connected with the engine system; characterized in that the vehicle further comprises: the air inlet adjusting device is arranged at one end of an air inlet of the air inlet pipeline system; the air intake port adjustment device includes: the air conditioner comprises a driving motor, an outer air inlet baffle and an inner air inlet baffle, wherein the driving motor is used for controlling the outer air inlet baffle and the inner air inlet baffle, the outer air inlet baffle faces the outside of a cabin of the vehicle, and the inner air inlet baffle faces the inside of the cabin of the vehicle; the device comprises:
the acquisition module is used for acquiring the running state of the vehicle and the environmental information of the environment where the vehicle is located;
the determining module is used for determining an operation instruction of the air inlet adjusting system according to the running state of the vehicle and the environment information;
and the adjusting module is used for controlling the driving motor to adjust the respective opening and closing states of the outer side air inlet baffle and the inner side air inlet baffle according to the operation instruction.
In a third aspect, embodiments of the present invention further provide an electronic device, including a processor, a memory, and a program or instructions stored on the memory and executable on the processor, where the program or instructions are executed by the processor to perform the steps of the foregoing method for adjusting an intake mode.
In a fourth aspect, the present embodiments further provide a readable storage medium, on which a program or instructions are stored, where the program or instructions, when executed by a processor, implement the steps of the aforementioned method for adjusting an intake mode.
In summary, the method for adjusting the intake mode provided by the embodiment of the invention obtains the running state of the vehicle and the environmental information of the environment where the vehicle is located; determining an operation instruction for an air inlet adjusting system according to the running state and the environmental information of the vehicle; and controlling the driving motor to adjust the respective opening and closing states of the outer air inlet baffle and the inner air inlet baffle according to the operation instruction. In the embodiment of the invention, the opening and closing states of the air inlet baffle and the air outlet baffle are correspondingly adjusted according to different judgment results by judging the running state of the vehicle and the environmental information of the environment where the vehicle is located, so that the adjustment of the air inlet mode of the vehicle in various states is realized, different requirements of the vehicle in various scenes are met, and the safety of the whole vehicle is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a structural diagram of an air intake system of a turbocharged vehicle type according to an embodiment of the present invention;
fig. 2 is a structural view of an intake system of a naturally aspirated vehicle type according to an embodiment of the present invention;
FIG. 3 is a flow chart of a method of adjusting an intake mode provided by an embodiment of the present invention;
FIG. 4 is a flow chart of another method of adjusting an intake mode provided by an embodiment of the present invention;
fig. 5 is a schematic diagram of an open/close state of an outer intake baffle and an inner intake baffle corresponding to different operation instructions according to an embodiment of the present invention;
FIG. 6 is a block diagram of an apparatus for adjusting an intake mode according to an embodiment of the present invention;
fig. 7 is a block diagram of an electronic device according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
Referring to fig. 1, a structural diagram of an air intake system of a turbocharged vehicle according to an embodiment of the present invention is shown.
Specifically, a vehicle of a turbocharged vehicle type has an intake pipe system 01 and an engine system 02. As shown in fig. 1, the intake pipe system 01 has an intake pipe 1, an air cleaner 2, an intercooler intake pipe 3, and an intercooler outlet pipe 4. Wherein, various pipelines are used for transmitting air, and the air filter 2 is used for filtering air. And the engine system 02 includes engine system components. Also, the vehicle has an ECU control unit 03, i.e., an electronic control unit, which the conventional vehicle has.
Referring to fig. 2, a block diagram of an intake system of a naturally aspirated vehicle type according to an embodiment of the present invention is shown.
In particular, a vehicle of the naturally aspirated type also has a vehicle with an intake pipe system 05 and an engine system 02. As shown in fig. 2, the intake pipe system 05 has an intake pipe 1, an air cleaner 2. Wherein, all kinds of pipelines are used for transmitting air, and the air filter 2 is used for filtering air. And the engine system 02 includes engine system components. Also, the vehicle has an ECU control unit 03, i.e., an electronic control unit, which the conventional vehicle has.
In the embodiment of the invention, the turbocharged vehicle type and the naturally aspirated vehicle type both further comprise an air inlet adjusting device 04, and the air inlet adjusting device 04 comprises a driving motor 5, an outer air inlet baffle 6 and an inner air inlet baffle 7. The air inlet adjusting device 04 of the turbo-charging vehicle type is arranged at one end of an air inlet of the air inlet pipeline system 01, and the air inlet adjusting device 04 of the natural suction vehicle type is arranged at one end of an air inlet of the air inlet pipeline system 05.
The drive motor 5 is configured to control the open/close states of the outer intake damper 6 and the inner intake damper 7 according to a control command from the ECU control unit 03. The outside air intake baffle 6 faces the outside of the vehicle cabin, and the inside air intake baffle 7 faces the inside of the vehicle cabin.
In the embodiment of the invention, air mass flowmeters 8 are arranged in the air inlet pipelines of a turbocharged vehicle type vehicle and a naturally aspirated vehicle type vehicle and are used for monitoring the air inflow state of air. The two vehicle types are respectively provided with a temperature sensor 09. As shown in fig. 1, in the case where the vehicle is of a turbocharged type, a temperature sensor for detecting the temperature of air is provided in one end of the intercooler pipe near the engine system. As shown in fig. 2, in the case where the vehicle is of a naturally aspirated type, a temperature sensor for detecting the temperature of air is provided in the engine system at a position close to the intake pipe.
In the embodiment of the invention, for a turbo-charged vehicle type, after air enters an air inlet pipeline and passes through an air filter, the air enters an engine system, after air is pressurized in the engine system, the air is input into an intercooler air inlet pipeline, the air is transmitted from an intercooler air inlet pipeline to an intercooler air outlet pipeline, the pressurized air is cooled in the intercooler air inlet pipeline and the intercooler air outlet pipeline, and then the air is transmitted into an engine to be combusted, and further, the combusted waste gas is exhausted through an exhaust pipe at the tail part of the vehicle. For a naturally aspirated vehicle type, air enters an air intake pipeline, passes through an air filter, enters an engine system, is combusted in the engine, and then is discharged through an exhaust pipe at the tail of the vehicle.
In the method for adjusting the intake mode described below, a turbocharged vehicle model is taken as an example, and the mode for adjusting the intake mode of a naturally aspirated vehicle model or another vehicle model may be the same as the mode for adjusting the intake mode of the turbocharged vehicle model, and may be referred to each other.
Referring to fig. 3, a flow chart of a method for adjusting an intake mode according to an embodiment of the invention is shown.
Step 101: acquiring the running state of the vehicle and the environmental information of the environment where the vehicle is located;
in an embodiment of the present invention, the running state of the vehicle includes: the state of the engine, the engine load, and the running state of the vehicle. Wherein the engine states include: an engine start state and an engine stop state. The engine load is the force required by the engine to propel the vehicle in motion. The driving state of the vehicle is whether the vehicle is in the process of driving. And the environmental information of the environment in which the vehicle is located includes: the state of the intake air quantity in the intake pipe system and/or the temperature of the air in the intake pipe system.
Specifically, the ECU control unit acquires the state of the air intake amount and/or the temperature of the air of the intake pipe system through a temperature sensor and/or an air mass flow meter, so that the environmental information of the environment in which the vehicle is located can be acquired. The ECU control unit may recognize the running state of the vehicle.
Step 102: determining an operation instruction for the air inlet adjusting system according to the running state of the vehicle and the environmental information;
in the embodiment of the present invention, the operation command refers to a command for opening/closing the outer intake damper and a command for opening/closing the inner intake damper.
Specifically, the ECU control unit determines whether the outside air intake flap of the air intake port needs to be opened or closed, and whether the inside air intake flap needs to be opened or closed, based on the running state of the vehicle and the environmental information.
Step 103: and controlling the driving motor to adjust the respective opening and closing states of the outer air inlet baffle and the inner air inlet baffle according to the operation instruction.
Specifically, for example, the ECU control unit determines that the operation command is to close the outer air intake flap and open the inner air intake flap based on the operating state of the vehicle and the environmental information, and then sends a control command to the drive motor to control the drive motor to close the outer air intake flap and open the inner air intake flap.
In summary, the method for adjusting the intake mode according to the embodiment of the present invention obtains the operating state of the vehicle and the environmental information of the environment where the vehicle is located; determining an operation instruction for an air inlet adjusting system according to the running state and the environmental information of the vehicle; and controlling the driving motor to adjust the respective opening and closing states of the outer air inlet baffle and the inner air inlet baffle according to the operation instruction. In the embodiment of the invention, the opening and closing states of the air inlet baffle and the air outlet baffle are correspondingly adjusted according to different judgment results by judging the running state of the vehicle and the environmental information of the environment where the vehicle is located, so that the adjustment of the air inlet mode of the vehicle in various states is realized, different requirements of the vehicle in various scenes are met, and the safety of the whole vehicle is improved.
Referring to FIG. 4, a flow chart of another method for adjusting an intake mode provided by an embodiment of the present invention is shown.
Step 201: acquiring the running state of the vehicle and the environmental information of the environment where the vehicle is located;
specifically, an air mass flow meter monitors the air intake quantity state of the air intake pipeline system, a temperature sensor monitors the air temperature in the air intake pipeline system, and the air mass flow meter and/or the temperature sensor sends the monitored information of the air intake quantity state and/or the monitored information of the air temperature to the ECU control unit. Further, the ECU control unit can acquire the environmental information where the vehicle is located according to the air temperature and/or the state of the intake air amount. Also, the ECU control unit may recognize the running state of the vehicle, i.e., acquire the running state of the vehicle.
Step 202: determining an operation instruction for the air inlet adjusting system according to the running state of the vehicle and the environmental information;
specifically, different operating instructions for the air intake adjusting system can be obtained correspondingly according to different operating states of the vehicle and different environmental information, so that the driving motor is controlled according to the corresponding operating instructions to correspondingly adjust the respective opening and closing states of the outer air intake baffle and the inner air intake baffle.
Optionally, the step 202 includes: step 2021: when the running state is an engine starting state, the temperature is greater than or equal to a preset temperature threshold value, and the air inflow state is an air flow state, determining that the operation instruction is to open the outer air inlet baffle and keep the inner air inlet baffle in a closed state;
in the embodiment of the invention, the preset temperature threshold is a critical temperature value which begins to influence the normal working state of the engine, and a person skilled in the art can preset the preset temperature threshold according to actual requirements.
Specifically, when the ECU control unit recognizes that the engine is in a start state, the temperature of air in the intake pipe system monitored by the temperature sensor is equal to or higher than a preset temperature threshold, and the state of the intake air amount detected by the air mass flow meter is that air flows, it indicates that the vehicle may be running under a non-special condition. The non-special working conditions refer to special severe weather such as normal weather, no rainstorm, snowstorm and the like, abnormal roads such as flat roads and no potholes, special conditions such as normal surrounding environment and no urban waterlogging and the like in the environment where the vehicle is located. At this time, in order to ensure the air intake requirement for normal operation of the engine, the ECU determines that the operation command is to open the outer intake damper and to maintain the inner intake damper in the closed state.
In the embodiment of the invention, after the ECU control unit controls the driving motor to open the outer side air inlet baffle and keep the inner side air inlet baffle in a closed state, air in the cabin cannot enter the air inlet, external air continuously enters the air inlet pipeline and enters the engine system after passing through the air filter, for the turbo-supercharged engine, after air is supercharged, the air is input into the intercooler air inlet pipeline and enters the intercooler air outlet pipeline, after the air after being supercharged is cooled in the intercooler air inlet pipeline and the intercooler air outlet pipeline, the air is transmitted into the engine to be combusted, and then the combusted waste is discharged through the exhaust pipe at the tail part of the vehicle. As the baffle plate of the air inlet at the outer side facing the outside of the vehicle cabin is opened, the external air can continuously enter the air inlet pipeline, thereby ensuring the air inlet requirement of normal work.
Optionally, the step 202 includes: step 2022: when the running state is an engine starting state and the temperature is less than a preset temperature threshold value, determining that the operation instruction is to keep the outer air inlet baffle in a closed state and open the inner air inlet baffle;
specifically, when the ECU identifies that the engine is in a start state and the air temperature in the intake pipe system monitored by the temperature sensor is less than a preset temperature threshold, it indicates that the vehicle may be in a severe cold area. In alpine regions, low temperature, alpine gases often freeze crankcase ventilation ducts. At this time, in order to avoid the occurrence of a problem of icing of the crankcase ventilation duct due to the effect of low-temperature high-speed gas, the ECU determines an operation command to keep the vehicle outside intake damper in a closed state and to open the inside intake damper.
In the embodiment of the invention, after the ECU control unit controls the driving motor to keep the outer air inlet baffle in a closed state and open the inner air inlet baffle, the low-temperature cold air of the outside air cannot enter the air inlet pipeline, the air with certain temperature inside the vehicle cabin continuously enters the air inlet and enters the engine system after passing through the air filter, for the turbo-charged engine, the air is pressurized and then is input into the intercooler air inlet pipeline and enters the intercooler air outlet pipeline, the pressurized air is cooled in the intercooler air inlet pipeline and the intercooler air outlet pipeline and then is transmitted into the engine for combustion, and the combusted waste is discharged through the exhaust pipe at the tail part of the vehicle. The combustion of the engine generates heat, so that the temperature of the air in the cabin is continuously increased, and the continuously increased air enters the air inlet pipeline through the inner side air inlet baffle again to realize the circulation again. As the warmer and warmer air continues to enter the intake line, icing of the crankcase ventilation ducts of the engine is avoided.
Optionally, the step 202 includes: step 2023: determining that the operation command is to close the outer intake damper and the inner intake damper when the operating state is an engine stop state and the intake air amount state is no air flow;
specifically, when the ECU control unit recognizes that the engine is in a stop state and the amount of intake air in the intake pipe system monitored by the air mass flow meter is no air flow, it indicates that the vehicle may be in a daily parked state, or a static evaporative emission state, or a situation where there is urban waterlogging around the vehicle. The static evaporative emission state is the condition that oil gas can be diffused after the vehicle is shut down and parked after running for a period of time. In a daily parking state or a static evaporation and discharge state, a certain oil-water mixture exists in the air inlet pipeline system due to the reasons of air blowby of an engine crankcase ventilation system and the like. The air inlet of a conventional air inlet pipeline system is directly connected with the atmosphere, and part of oil gas can be directly diffused into the atmosphere along with the diffusion of oil molecules, so that the problems of unqualified normal discharge and atmospheric pollution are caused. And under the condition that urban inland inundation exists around the vehicle, rainwater can get into the air inlet and pile up behind the admission line, and piled up ponding is inside by can flowing into the engine, causes the engine damage. At this time, in order for the above problem to occur, the ECU determines the operation commands to close the vehicle outside air intake damper and the inside air intake damper.
In the embodiment of the invention, after the ECU control unit controls the driving motor to close the outer side air inlet baffle and the inner side air inlet baffle, rainwater outside the vehicle cabin cannot enter the air inlet, oil molecules inside the vehicle cabin cannot be diffused into the atmosphere, and air pollution and engine damage are avoided.
Optionally, the step 202 includes: step 2024: determining that the operation command is to open the outside air intake flap and the inside air intake flap when the engine load of the vehicle is greater than a preset load threshold and the intake air amount state is less than a preset intake air amount threshold;
in the embodiment of the present application, the preset input load threshold is a value of a maximum critical force required for driving the vehicle to move, and a person skilled in the art may preset the preset temperature threshold according to an actual requirement.
Specifically, when the ECU identifies that the engine load is greater than the preset coincidence threshold and the air intake state detected by the air mass flow meter is less than the preset air intake threshold, it indicates that the vehicle may be in a heavy load and high altitude area, and at this time, the force required to drive the vehicle is large, and more air needs to be drawn in to improve the combustion efficiency, so as to meet the force required to drive the vehicle. However, since the vehicle is under a heavy load and at a high altitude, the air is thin, and the force required by the vehicle cannot be satisfied. At this time, in order for the above problem to occur, the ECU determines the operation commands to open the vehicle outside air intake flap and the inside air intake flap.
In the embodiment of the invention, after the ECU control unit controls the driving motor to open the outer side air inlet baffle and the inner side air inlet baffle, both air inside the vehicle cabin and air outside the vehicle cabin continuously enter the air inlet pipeline and enter the engine system after passing through the air filter. Because the air entering the engine system is greatly increased, the combustion efficiency of the engine is improved, and further, enough force can be provided to drive the vehicle to run.
It should be noted that when the engine load of the vehicle is greater than the preset load threshold, the temperature is less than the preset temperature threshold, and the intake air amount is less than the preset intake air amount threshold, the air intake air amount monitored by the air mass flow meter is preferentially taken as the reference, that is, the operation command is determined to open the outside air intake flap and the inside air intake flap.
Optionally, the step 202 includes: step 2025: and under the condition that the running state is that the vehicle is in a running state and the temperature fluctuation range in a first time period exceeds a preset fluctuation range, determining that the operation command is to close the outer air inlet baffle and open the inner air inlet baffle.
Specifically, when the ECU control unit identifies that the vehicle is in the process of traveling, and the temperature fluctuation range detected by the temperature sensor in the first time period exceeds the preset fluctuation range, it indicates that the vehicle may travel in a rainy water area, at this time, because the humidity of the air gas sucked by the air inlet is high, when the air with high humidity enters the engine system assembly to be increased and is transmitted to the pipeline of the intercooler for cooling, the condensate water will be generated inside the intercooler, and the condensate water will enter the engine through the pipeline to cause the problems of flameout, shaking and the like. At this time, in order for the above problem to occur, the ECU determines the operation commands as closing the vehicle outside air intake flap and opening the inside air intake flap.
In the embodiment of the invention, after the ECU controls the driving motor to close the outer side air inlet baffle and open the inner side air inlet baffle, the air in the vehicle cabin can continuously enter the air inlet pipeline, and then enters the engine system after passing through the air filter. Because the outside air inlet baffle towards the outside of the vehicle cabin is closed, high-humidity air cannot enter the air inlet pipeline, and the engine cannot generate the problems of flameout or shaking and the like caused by condensed water. And because the air without humidity in the vehicle cabin can enter the air inlet pipeline through the opened air inlet baffle on the inner side of the vehicle, the engine cannot be flamed or shaken.
Step 203: controlling the driving motor to adjust the respective opening and closing states of the outer air inlet baffle and the inner air inlet baffle according to the operation instruction;
referring to fig. 5, there is shown a schematic view of the open and closed states of the outer intake damper and the inner intake damper corresponding to different operation commands. As can be seen from fig. 5, the drive motor adjusts the respective open/close states of the outer intake damper and the inner intake damper in different manners according to the operation command. Specifically, the opening and closing states of the outer intake baffle and the inner intake baffle can be adjusted according to the descriptions of steps 2021 to 2025, and are not described again.
In this embodiment of the present invention, optionally, for the step 2022, after the step 203 is executed, the method further includes:
step 2041: determining that the operating command is to open the outboard intake damper and close the inboard intake damper when the temperature returns to greater than or equal to the preset temperature threshold;
specifically, for the condition that the vehicle is in a severe cold area, after the driving motor closes the outer air inlet baffle and opens the inner air inlet baffle, if the temperature sensor monitors that the air temperature is restored to be greater than or equal to the preset temperature threshold value, it is indicated that the air temperature in the air inlet pipeline system is restored to be normal, and the normal air temperature does not cause the crankcase ventilation pipe to be frozen. Thus, the ECU readjusts the operating commands to open the outboard intake damper and close the inboard intake damper to provide air to the engine as required by non-specified operating conditions.
Optionally, for step 2025, after performing step 203, further comprising:
step 2042: determining the operation command to open the outer intake damper and close the inner intake damper in a case where the fluctuation range of the temperature is within the preset fluctuation range in a second time period after the first time period.
Specifically, when the vehicle is traveling in a rainy area, after the driving motor closes the outer air inlet baffle and opens the inner air inlet baffle, if the fluctuation range of the air temperature monitored by the temperature sensor is within the preset fluctuation range, it is indicated that the high-humidity air sucked in the air inlet pipeline system does not exceed the standard, and the engine is not affected. Thus, the ECU readjusts the operating commands to open the outboard intake damper and close the inboard intake damper to provide air to the engine as required by non-specified operating conditions.
In summary, the method for adjusting the intake mode according to the embodiment of the present invention obtains the operating state of the vehicle and the environmental information of the environment where the vehicle is located; determining an operation instruction for an air inlet adjusting system according to the running state and the environmental information of the vehicle; and controlling the driving motor to adjust the opening and closing states of the outer air inlet baffle and the inner air inlet baffle according to the operation instruction. In the embodiment of the invention, the opening and closing states of the air inlet baffle and the air outlet baffle are correspondingly adjusted according to different judgment results by judging the running state of the vehicle and the environmental information of the environment where the vehicle is located, so that the adjustment of the air inlet mode of the vehicle in various states is realized, different requirements of the vehicle in various scenes are met, and the safety of the whole vehicle is improved.
Referring to fig. 6, a block diagram of an apparatus for adjusting an intake mode according to an embodiment of the present invention is shown. The device is applied to a vehicle, and the vehicle comprises: the air inlet pipeline system is connected with the engine system; characterized in that the vehicle further comprises: the air inlet adjusting device is arranged at one end of an air inlet of the air inlet pipeline system; the air intake port adjusting apparatus includes: the air inlet device comprises a driving motor, an outer air inlet baffle and an inner air inlet baffle, wherein the driving motor is used for controlling the outer air inlet baffle and the inner air inlet baffle, the outer air inlet baffle faces the outside of a cabin of the vehicle, and the inner air inlet baffle faces the inside of the cabin of the vehicle; the apparatus 600 comprises:
an obtaining module 601, configured to obtain an operating state of the vehicle and environment information of an environment where the vehicle is located;
a determining module 602, configured to determine an operation instruction for the air intake adjusting system according to the operating state of the vehicle and the environmental information;
and an adjusting module 603, configured to control the driving motor to adjust the respective open/close states of the outer air intake baffle and the inner air intake baffle according to the operation instruction.
Optionally, the environmental information comprises a state of an intake air quantity of the intake pipe system and/or a temperature of air in the intake pipe system.
Optionally, the determining module 602 includes:
the first determining module is used for determining that the operation instruction is to open the outer air inlet baffle and to keep the inner air inlet baffle in a closed state under the conditions that the running state is an engine starting state, the temperature is greater than or equal to a preset temperature threshold value and the air inflow state is an air flowing state.
Optionally, the determining module 602 includes:
and the second determination module is used for determining that the operation instruction is to keep the outer air inlet baffle in a closed state and open the inner air inlet baffle when the running state is an engine starting state and the temperature is less than a preset temperature threshold value.
Optionally, the second determining module is further configured to determine that the operation command is to open the outer intake baffle and close the inner intake baffle when the temperature is restored to be greater than or equal to the preset temperature threshold.
Optionally, the determining module 602 includes:
and the third determination module is used for determining that the operation instruction is to close the outer air inlet baffle and the inner air inlet baffle when the running state is an engine stop working state and the air inflow state is no air flow.
Optionally, the determining module 602 includes:
and the fourth determination module is used for determining that the operation instruction is to open the outer air intake baffle and the inner air intake baffle under the condition that the engine load of the vehicle is greater than a preset load threshold and the air intake quantity state is smaller than a preset air intake quantity threshold.
Optionally, the determining module 602 includes:
and the fifth determining module is used for determining that the operation instruction is to close the outer air inlet baffle and open the inner air inlet baffle under the condition that the running state is that the vehicle is in a running state and the temperature fluctuation range in a first time period exceeds a preset fluctuation range.
Optionally, the fifth determining module is further configured to determine that the operation command is to open the outer intake damper and close the inner intake damper in a case where the fluctuation range of the temperature is within the preset fluctuation range in a second time period after the first time period.
Optionally, in case the vehicle is of the turbocharged vehicle type, a temperature sensor for detecting the temperature is provided in an intercooler pipe at an end near the engine system; in the case where the vehicle is a naturally aspirated vehicle type, a temperature sensor for detecting the temperature is provided in the engine system at a position close to an intake pipe.
In summary, the apparatus for adjusting an intake mode according to the embodiment of the present invention obtains the operating state of the vehicle and the environmental information of the environment where the vehicle is located; determining an operation instruction for an air inlet adjusting system according to the running state and the environmental information of the vehicle; and controlling the driving motor to adjust the opening and closing states of the outer air inlet baffle and the inner air inlet baffle according to the operation instruction. In the embodiment of the invention, the opening and closing states of the air inlet baffle and the air outlet baffle are correspondingly adjusted according to different judgment results by judging the running state of the vehicle and the environmental information of the environment where the vehicle is located, so that the adjustment of the air inlet mode of the vehicle in various states is realized, different requirements of the vehicle in various scenes are met, and the safety of the whole vehicle is improved.
Referring to fig. 7, an embodiment of the present invention further provides an electronic device M00, which includes a processor M02, a memory M01, and a computer program or an instruction stored in the memory M01 and executable on the processor M02, where the program or the instruction, when executed by the processor M02, implements each process of the method for adjusting an intake mode, and can achieve the same technical effect, and in order to avoid repetition, the detailed description is omitted here.
Referring to fig. 8, a hardware structure diagram of an electronic device implementing the present application is shown.
The electronic device 800 includes, but is not limited to: a radio frequency unit 8001, a network block 8002, an audio output unit 8003, an input unit 8004, a sensor 8005, a display unit 8006, a user input unit 8007, an interface unit 8008, a memory 8009, and a processor 8010.
Those skilled in the art will appreciate that the electronic device 800 may further include a power source (e.g., a battery) for supplying power to the various components, and the power source may be logically connected to the processor 8010 via a power management system, so that the functions of managing charging, discharging, and power consumption may be implemented via the power management system. The electronic device structure shown in fig. 8 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than those shown, or combine some components, or arrange different components, and thus, the description is omitted here.
An embodiment of the present invention further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the method for adjusting an intake mode, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (13)

1. A method for adjusting an air intake mode is applied to a vehicle, and the vehicle comprises: the air inlet pipeline system is connected with the engine system; characterized in that the vehicle further comprises: the air inlet adjusting system is arranged at one end of an air inlet of the air inlet pipeline system; the air intake port adjustment system includes: the air conditioner comprises a driving motor, an outer air inlet baffle and an inner air inlet baffle, wherein the driving motor is used for controlling the outer air inlet baffle and the inner air inlet baffle, the outer air inlet baffle faces the outside of a cabin of the vehicle, and the inner air inlet baffle faces the inside of the cabin of the vehicle; the method comprises the following steps:
acquiring the running state of the vehicle and the environmental information of the environment where the vehicle is located, wherein the running state of the vehicle comprises the following steps: the method comprises the following steps that the state of an engine, the load of the engine and the running state of the vehicle are realized, wherein the environment information comprises the air intake quantity state of the air intake pipeline system and/or the temperature of air in the air intake pipeline system, the state of the engine comprises an engine starting state and an engine stopping state, and the running state of the vehicle is whether the vehicle is in a running process or not;
determining an operation instruction for the air inlet adjusting system according to the running state of the vehicle and the environmental information;
and controlling the driving motor to adjust the respective opening and closing states of the outer air inlet baffle and the inner air inlet baffle according to the operation instruction.
2. The method according to claim 1, characterized in that the environmental information comprises the state of the intake air quantity of the intake pipe system and/or the temperature of the air in the intake pipe system.
3. The method of claim 2, wherein determining operating instructions for the air intake adjustment system based on the operating state of the vehicle and the environmental information comprises:
and under the condition that the running state is an engine starting state, the temperature is greater than or equal to a preset temperature threshold value, and the air inflow state is an air flow state, determining that the operation instruction is to open the outer air inlet baffle and keep the inner air inlet baffle in a closed state.
4. The method of claim 2, wherein determining operating instructions for the air intake adjustment system based on the operating state of the vehicle and the environmental information comprises:
and when the running state is an engine starting state and the temperature is less than a preset temperature threshold value, determining that the operation instruction is to keep the outer air inlet baffle in a closed state and open the inner air inlet baffle.
5. The method according to claim 4, further comprising, after controlling the drive motor to adjust the respective open-closed states of the outside intake damper and the inside intake damper according to the operation instruction:
and under the condition that the temperature is recovered to be greater than or equal to the preset temperature threshold value, determining that the operation command is to open the outer air inlet baffle and close the inner air inlet baffle.
6. The method of claim 1, wherein determining operating instructions for the air intake adjustment system based on the operating state of the vehicle and the environmental information comprises:
and under the condition that the running state is an engine stop working state and the air intake amount state is no air flow, determining that the operation instruction is to close the outer air inlet baffle and the inner air inlet baffle.
7. The method of claim 1, wherein determining operating instructions for the air intake adjustment system based on the operating state of the vehicle and the environmental information comprises:
and under the conditions that the engine load of the vehicle is greater than a preset load threshold value and the air intake amount state is less than a preset air intake amount threshold value, determining that the operation instruction is to open the outside air intake flap and the inside air intake flap.
8. The method of claim 1, wherein determining operating instructions for the air intake adjustment system based on the operating state of the vehicle and the environmental information comprises:
and under the condition that the running state is that the vehicle is in a running state and the temperature fluctuation range in a first time period exceeds a preset fluctuation range, determining that the operation command is to close the outer air intake flap and open the inner air intake flap.
9. The method according to claim 8, further comprising, after controlling the drive motor to adjust the respective open-closed states of the outside intake damper and the inside intake damper according to the operation instruction:
determining the operation command to open the outer intake damper and close the inner intake damper in a case where the fluctuation range of the temperature is within the preset fluctuation range in a second time period after the first time period.
10. The method of claim 2, wherein in the case where the vehicle is of the turbocharged vehicle type, a temperature sensor for detecting the temperature is provided in an intercooler pipe at an end near the engine system; in a case where the vehicle is a naturally aspirated vehicle type, a temperature sensor for detecting the temperature is provided in the engine system at a position near an intake pipe.
11. An apparatus for adjusting an intake mode of a vehicle, the vehicle comprising: the air inlet pipeline system is connected with the engine system; characterized in that the vehicle further comprises: the air inlet adjusting system is arranged at one end of an air inlet of the air inlet pipeline system; the air intake port adjustment system includes: the air conditioner comprises a driving motor, an outer air inlet baffle and an inner air inlet baffle, wherein the driving motor is used for controlling the outer air inlet baffle and the inner air inlet baffle, the outer air inlet baffle faces the outside of a cabin of the vehicle, and the inner air inlet baffle faces the inside of the cabin of the vehicle; the device comprises:
the acquisition module is used for acquiring the running state of the vehicle and the environment information of the environment where the vehicle is located, and the running state of the vehicle comprises the following steps: the method comprises the following steps that the state of an engine, the load of the engine and the running state of the vehicle are realized, wherein the environment information comprises the air intake quantity state of the air intake pipeline system and/or the temperature of air in the air intake pipeline system, the state of the engine comprises an engine starting state and an engine stopping state, and the running state of the vehicle is whether the vehicle is in a running process or not;
the determining module is used for determining an operation instruction of the air inlet adjusting system according to the running state of the vehicle and the environment information;
and the adjusting module is used for controlling the driving motor to adjust the respective opening and closing states of the outer side air inlet baffle and the inner side air inlet baffle according to the operation instruction.
12. An electronic device comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method of adjusting an air intake mode according to any one of claims 1 to 10.
13. A readable storage medium, storing thereon a program or instructions which, when executed by a processor, carry out the steps of the method of adjusting an air intake mode according to any one of claims 1-10.
CN202011639065.2A 2020-12-31 2020-12-31 Method and device for adjusting air intake mode Active CN114687871B (en)

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DE19811051B4 (en) * 1998-03-13 2014-01-02 Mann + Hummel Gmbh Air intake device for an internal combustion engine
DE19812566A1 (en) * 1998-03-21 1999-09-23 Mann & Hummel Filter Air filter for IC engine with housing and filter insert
JP4519314B2 (en) * 2000-12-27 2010-08-04 株式会社マーレ フィルターシステムズ Intake duct structure of internal combustion engine
DE10233408A1 (en) * 2001-07-25 2003-05-08 Denso Corp Engine unit
JP4333747B2 (en) * 2007-01-29 2009-09-16 トヨタ自動車株式会社 Intake device for internal combustion engine for vehicle
CN107605629A (en) * 2017-07-28 2018-01-19 北汽福田汽车股份有限公司 vehicle intake device, method, system and vehicle

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