CN112109538A - Fuel vehicle air intake method, device, equipment and storage medium - Google Patents
Fuel vehicle air intake method, device, equipment and storage medium Download PDFInfo
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- CN112109538A CN112109538A CN202011026129.1A CN202011026129A CN112109538A CN 112109538 A CN112109538 A CN 112109538A CN 202011026129 A CN202011026129 A CN 202011026129A CN 112109538 A CN112109538 A CN 112109538A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/08—Air inlets for cooling; Shutters or blinds therefor
- B60K11/085—Air inlets for cooling; Shutters or blinds therefor with adjustable shutters or blinds
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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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
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- Combustion & Propulsion (AREA)
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- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
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Abstract
The application provides an air intake method, device, equipment and storage medium for a fuel vehicle, and relates to the technical field of vehicles. The fuel economy performance of the automobile is improved while the thermal environment management in the engine compartment is considered. The method comprises the following steps: detecting a current operating state of the vehicle; when the current operation state is a state that the vehicle is started and is not in a fault state, acquiring a first operation parameter corresponding to a fuel management index and a second operation parameter corresponding to a thermal management index of the vehicle; determining a target opening value of an active air intake grille of the vehicle according to the first operating parameter and the second operating parameter; and correcting the current opening value of the active air inlet grille according to the target opening value so that the active air inlet grille can intake air to the vehicle according to the corrected opening value.
Description
Technical Field
The application relates to the technical field of vehicles, in particular to an air intake method, device, equipment and storage medium for a fuel vehicle.
Background
The air inlet grille is an important component of the front modeling of the automobile, influences the design style of the whole automobile, and is also an inlet for air to flow into an engine compartment of the automobile. An active air intake grille (AGS) is a device that can adjust the opening angle of louvers by means of its own motor.
Existing methods for controlling the intake of an engine compartment via an active intake grille (AGS) can only meet a single need. For example, the opening angle of the active air inlet grille adjusts the air flow quantity and the air flow direction entering the engine compartment, and the heat dissipation requirement of the engine compartment of the automobile is met.
However, the air flowing into the engine compartment of the automobile not only affects the thermal environment in the engine compartment, but also has certain effects on various performances such as the vehicle running resistance, the air conditioning performance, the cooling environment of the power system and the like. For example, the active air intake grille (AGS) is opened by a large angle, so that heat dissipation can be optimized, but wind resistance benefit is low, and fuel economy index of a vehicle is affected, namely, the fuel consumption of the vehicle is increased. Therefore, how to control the air flowing into the engine compartment of the automobile is an urgent problem to be solved, which can ensure the fuel economy performance of the automobile while taking into account the thermal environmental management in the engine compartment.
Disclosure of Invention
The embodiment of the application provides an air inlet method, device, equipment and storage medium for a fuel vehicle, and aims to provide a method for adjusting air inlet of an engine compartment according to a vehicle state by controlling an active air inlet grille, so that the fuel economy performance of an automobile is guaranteed while the thermal environment management in the engine compartment is considered.
In a first aspect, an embodiment of the present application provides a fuel vehicle air intake method, where the method includes:
detecting a current operating state of the vehicle;
when the current operation state is a state that the vehicle is started and is not in a fault state, acquiring a first operation parameter corresponding to a fuel management index and a second operation parameter corresponding to a thermal management index of the vehicle;
determining a target opening value of an active air intake grille of the vehicle according to the first operating parameter and the second operating parameter;
and correcting the current opening value of the active air inlet grille according to the target opening value so that the active air inlet grille can intake air to the vehicle according to the corrected opening value.
Optionally, the first operating parameter comprises an ambient temperature value and a current vehicle speed of the vehicle; the second operating parameters include a vehicle load parameter and a cooling parameter;
determining a target opening value of an active intake grille of the vehicle based on the first operating parameter and the second operating parameter, comprising:
determining the opening degree of an active air inlet grille of the vehicle according to the environment temperature value and the current vehicle speed to obtain a first opening degree value;
determining the opening degree of an active air inlet grille of the vehicle according to the vehicle load and the cooling parameters to obtain a second opening degree value;
and determining the target opening degree value according to the magnitude relation between the first opening degree value and the second opening degree value.
Optionally, determining an opening degree of an active intake grille of the vehicle according to the ambient temperature value and the current vehicle speed to obtain a first opening degree value, including:
determining a vehicle speed threshold value of the vehicle according to the influence degree of the fuel consumption of the vehicle against the wind resistance on the total fuel consumption of the vehicle;
when the running speed is larger than the vehicle speed threshold value, taking the maximum opening value as the first opening value;
and when the running speed is smaller than the vehicle speed threshold value, calculating to obtain the first opening value according to the environment temperature value.
Optionally, the cooling parameters include engine water temperature, engine intake air temperature, and transmission oil temperature; determining the opening degree of the active air inlet grille according to the vehicle load parameter and the cooling parameter to obtain a second opening degree value, wherein the second opening degree value comprises the following steps:
determining an engine opening value corresponding to the water temperature of the engine and the air inlet temperature of the engine according to a preset engine opening demand algorithm;
determining a transmission opening value corresponding to the transmission oil temperature according to a preset transmission opening demand algorithm;
when the load state meets a preset compensation correction condition, respectively performing compensation correction on the engine opening value and the transmission opening value;
and determining the engine opening value after compensation correction as a second opening value of the engine, and determining the transmission opening value after compensation correction as a second opening value of the transmission.
Optionally, the method further comprises:
obtaining a third operating parameter corresponding to the windage revenue index, the third operating parameter at least comprising: the system comprises air conditioner operation parameters, fan operation parameters and intelligent start-stop state parameters;
calculating an opening requirement on an active air inlet grille according to the air conditioner operation parameter, the fan operation parameter and the intelligent start-stop state parameter to obtain an opening value corresponding to the wind resistance income index;
according to the target opening value, correcting the current opening value of the active air inlet grille, wherein the correction comprises the following steps:
and correcting the current opening value of the active air inlet grille according to the opening value corresponding to the wind resistance income index and the target opening value.
Optionally, modifying the current opening value of the active intake grille according to the target opening value includes:
obtaining a difference vector of the target opening value and the current opening value;
and controlling the blades of the active air inlet grille to rotate from the opening corresponding to the current opening value to the opening corresponding to the target opening value according to the difference vector.
Optionally, the method further comprises:
when the current running state is a vehicle flameout state, controlling the active air inlet grille to intake air at a minimum opening value;
and when the current operation state is a fault state, controlling the active air inlet grille to inlet air at a minimum opening value.
A second aspect of the embodiments of the present application provides a fuel vehicle air intake device, the device includes:
the detection module is used for detecting the current running state of the vehicle;
the first parameter acquisition module is used for acquiring a first operation parameter corresponding to a fuel management index and a second operation parameter corresponding to a thermal management index of the vehicle when the current operation state is a vehicle starting and non-failure state;
the target opening value determining module is used for determining a target opening value of an active air inlet grille of the vehicle according to the first operating parameter and the second operating parameter;
and the correction module is used for correcting the current opening value of the active air inlet grille according to the target opening value so that the active air inlet grille can intake air to a vehicle according to the corrected opening value.
Optionally, the target opening value determining module includes:
the first opening value determining submodule is used for determining the opening of an active air inlet grille of the vehicle according to the environment temperature value and the current vehicle speed to obtain a first opening value;
the second opening value determining submodule is used for determining the opening of an active air inlet grille of the vehicle according to the vehicle load and the cooling parameter to obtain a second opening value;
and the target opening value determining submodule is used for determining the target opening value according to the size relation between the first opening value and the second opening value.
Optionally, the first opening value determination sub-module includes:
the vehicle speed threshold determining subunit is used for determining the vehicle speed threshold of the vehicle according to the influence degree of the fuel consumption of the vehicle against the wind resistance on the overall fuel consumption of the vehicle;
a first opening degree value operator unit, configured to take a maximum opening degree value as the first opening degree value when the travel speed is greater than the vehicle speed threshold;
and the first opening value determining subunit is used for calculating to obtain the first opening value according to the environment temperature value when the running speed is less than the vehicle speed threshold value.
Optionally, the second opening value determination sub-module includes:
the engine opening value determining subunit is used for determining an engine opening value corresponding to the water temperature and the air inlet temperature of the engine according to a preset engine opening demand algorithm;
the transmission opening value determining subunit is used for determining a transmission opening value corresponding to the transmission oil temperature according to a preset transmission opening demand algorithm;
the compensation correction subunit is used for respectively performing compensation correction on the engine opening value and the transmission opening value when the load state meets a preset compensation correction condition;
and the second opening value determining subunit is used for determining the compensated and corrected engine opening value as a second opening value of the engine and determining the compensated and corrected transmission opening value as a second opening value of the transmission.
Optionally, the apparatus further comprises:
a second parameter obtaining module, configured to obtain a third operating parameter corresponding to the windage revenue indicator, where the third operating parameter at least includes: the system comprises air conditioner operation parameters, fan operation parameters and intelligent start-stop state parameters;
the opening value calculation module is used for calculating the opening requirement of the active air intake grille according to the third operation parameter to obtain an opening value corresponding to the wind resistance income index;
the correction module comprises:
and the correction submodule is used for correcting the current opening value of the active air inlet grille according to the opening value corresponding to the wind resistance income index and the target opening value.
Optionally, the correction module includes:
a difference value obtaining submodule, configured to obtain a difference vector between the target opening value and the current opening value;
and the control submodule is used for controlling the blades of the active air inlet grille to rotate from the opening corresponding to the current opening value to the opening corresponding to the target opening value according to the difference vector.
Optionally, the apparatus further comprises:
the first control module is used for controlling the active air inlet grille to admit air at the maximum opening value when the current running state is the flameout state of the vehicle;
and the second control module is used for controlling the active air inlet grille to admit air at the minimum opening value when the current running state is a fault state.
A third aspect of embodiments of the present application provides a readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the steps in the method according to the first aspect of the present application.
A fourth aspect of the embodiments of the present application provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program to implement the steps of the method according to the first aspect of the present application.
The method and the device for detecting the fuel consumption of the automobile have the advantages that the first operation parameter of the fuel consumption index of the running process of the mark automobile is obtained, and the second operation parameter of the heat dissipation index of the running process of the mark automobile is obtained, wherein the first operation parameter can reflect the heat dissipation efficiency of all parts of an engine compartment at the same time, and the second operation index can reflect the fuel consumption at the same time, so that when an active air intake grille (AGS) flows into air with a target opening value, the automobile can give consideration to the thermal environment of the engine compartment at the maximum under the current running state, and the optimal fuel economy performance of the automobile is guaranteed.
The embodiment of the application acquires the state of the whole vehicle, and comprises the following steps: the method comprises the steps of identifying the environmental temperature value and the current vehicle speed of a vehicle fuel consumption index, identifying the vehicle load parameter of a thermal management index, the engine water temperature, the engine air inlet temperature and the transmission oil temperature, identifying the air conditioner operation parameter of a cabin thermal management state, identifying the fan operation parameter of the engine cabin wind resistance influence, identifying the intelligent start-stop state parameter of the vehicle wind resistance influence (thermal management is not considered when the intelligent start-stop state is started and stopped), comprehensively utilizing the cooling performance, the air conditioner performance, the wind resistance, the thermal environment in the engine cabin and other factors to determine the opening value of an active air inlet grille AGS, simply and effectively controlling the opening of the active air inlet grille AGS, and enabling the air passing through the active air inlet grille AGS to meet the balance of heat dissipation management and improvement of.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a flow chart illustrating steps of a method for air induction of a fuel vehicle according to an embodiment of the present application;
FIG. 2 is a schematic view of the opening angle of the louver of the active grille shutter of the present application;
FIG. 3 is a flowchart of an engine control unit analyzing a vehicle state according to an embodiment of the present application;
FIG. 4 is a flowchart illustrating steps for determining a first opening value according to an embodiment of the present application;
FIG. 5 is a flowchart illustrating steps for determining a second opening value according to an embodiment of the present application;
FIG. 6 is a flow chart of determining a second opening value according to an embodiment of the present application;
FIG. 7 is a graphical representation of information interaction for controlling active grille intake in accordance with the subject application;
FIG. 8 is a schematic diagram of an air intake device of a fuel vehicle according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
An active intake grill (AGS) of the present application includes a grill portion of a vehicle molding portion, an intake grill sample (louver) intake grill control unit, and a motor. An Engine Control Unit (ECU) of the vehicle gives an instruction to an active air intake grille (AGS) through information interaction with an air intake grille control unit, so that the rotation angle of a louver blade is adjusted through controlling a motor of the active air intake grille (AGS), and further the air intake condition of an engine compartment of the vehicle is adjusted.
Specifically, an Engine Control Unit (ECU) of the vehicle may continuously obtain operating parameters of a plurality of components of the vehicle and a current opening angle of an active intake grill (AGS), analyze the operating parameters, and determine an instruction issued to the active intake grill (AGS). In the embodiment of the application, a first operation parameter corresponding to a fuel management index and a second operation parameter corresponding to a thermal management index can be acquired, the first operation parameter corresponding to the fuel management index and the second operation parameter corresponding to the thermal management index are respectively analyzed to obtain the opening angle corresponding to the first operation parameter and the first operation parameter, then a thermal management factor of an engine compartment is further combined to determine an angle at which the louver is opened based on the current state of a vehicle, and a correction instruction is issued to an active air intake grille (AGS) according to the difference value between the angle at which the louver is opened and the current opening angle, so that the louver of the active air intake grille (AGS) rotates by a certain angle according to the instruction to the angle at which the Engine Control Unit (ECU) is opened according to the current operation state of the vehicle. At the current running time of the vehicle, air flows into an engine compartment through a louver blade which keeps an opening angle through an active air intake grille (AGS), and the air flow gives consideration to wind resistance born by the running of the vehicle while supporting the heat management of the engine compartment, so that the highest fuel economy efficiency is maintained under the condition that the heat management of the current running state of the vehicle is ensured.
FIG. 1 is a flow chart of steps of an air intake method of a fuel vehicle according to an embodiment of the present application, as shown in FIG. 1:
step S11: detecting a current operating state of the vehicle;
the operation state comprises the following steps: a vehicle on and off state, a vehicle off state, and a fault state. The vehicle started and non-failed state is: the vehicle is in an ignition state, the engine is started, the vehicle travels normally, and the Engine Control Unit (ECU) does not receive any fault signal. The vehicle key-off state is: the engine of the vehicle is turned off, i.e., the vehicle is normally parked. The fault state is: the state in which the Engine Control Unit (ECU) receives any fault signal. The fault signal includes: the failure of an active air intake grille (AGS) motor actuator to receive and transmit signals, engine water temperature sensor failure, engine intake air temperature sensor failure, transmission oil temperature sensor failure, fan failure, and other vehicle travel failures.
And when the current operation state is a fault state, controlling the active air inlet grille to inlet air at a minimum opening value.
Fig. 2 is a schematic view of an opening angle of the louver of the active grille shutter according to the present invention. As shown in fig. 2, the louver of the active intake grille (AGS) can be continuously and randomly changed between 0 ° and 90 °. When the louver blades rotate to 0 degree, the opening value of the active air inlet grille (AGS) is 0, the opening value is the minimum opening value of the active air inlet grille (AGS), and the active air inlet grille (AGS) is in a fully open state at the moment, namely the opening angle of the louver blades is the maximum. When the louver blades rotate to 90 degrees, the opening value of the active air intake grille (AGS) is 100, the opening value of the active air intake grille (AGS) is the maximum opening value of the active air intake grille (AGS), and the active air intake grille (AGS) is in a fully closed state at the moment, namely the opening angle of the louver blades is the minimum.
When detecting a fault signal, an Engine Control Unit (ECU) can give a full-open instruction to an active air inlet grille (AGS) according to the fault signal preferentially, so that the louver blades rotate to a minimum opening value, and even if parts of the engine compartment break down, the maximum opening angle of the active air inlet grille (AGS) can still be used for fully realizing air circulation heat dissipation, and the safety of the operation of all the parts of the engine compartment is ensured.
When the current running state is a vehicle flameout state, controlling the active air inlet grille to intake air at a minimum opening value;
when an Engine Control Unit (ECU) detects that an engine is flamed out, because a vehicle is in a stop state, no wind resistance exists, fuel economy loss caused by the wind resistance is not considered, and the heat dissipation efficiency of an engine compartment is ensured at first, so that the Engine Control Unit (ECU) gives a full-open instruction to an active air intake grille (AGS) preferentially to enable a louver blade to rotate to a minimum opening value.
Fig. 3 is a flowchart of an engine control unit analyzing a vehicle state according to an embodiment of the present application. As shown in fig. 3, the Engine Control Unit (ECU) preferentially executes a control command for the active intake grill (AGS) when the vehicle is in a failure state, a control command for the active intake grill (AGS) when the vehicle is in a flameout state, and a control command for the active intake grill (AGS) determined according to the operating parameters of the vehicle when the vehicle is in a starting and non-failure state. Therefore, the embodiment of the application firstly ensures the safe driving of the vehicle, ensures the maximum heat dissipation of the engine compartment when no wind resistance influence exists, and comprehensively analyzes various operation parameters to determine the opening angle of the active air intake grille (AGS) when the vehicle runs, thereby realizing the purpose of ensuring the fuel economy performance of the automobile while considering the thermal environment management in the engine compartment.
Step S12: when the current operation state is a state that the vehicle is started and is not in a fault state, acquiring a first operation parameter corresponding to a fuel management index and a second operation parameter corresponding to a thermal management index of the vehicle;
the faster the vehicle speed is, the greater the oil consumption is under the same running state of the vehicle; the fuel consumption is increased in the acceleration process of the vehicle, so that the first operation parameter corresponding to the fuel management index and the second operation parameter corresponding to the heat management index are continuously obtained in the running process of the vehicle, and the opening angle of the active air intake grille (AGS) in the current running of the vehicle is calculated according to the first operation parameter and the second operation parameter.
The first operation parameter comprises an ambient temperature value and a current vehicle speed of the vehicle; the current vehicle speed reflects the fuel oil consumption, and the ambient temperature value can represent the heat exchange efficiency of air inlet and air outlet of the engine compartment. Therefore, the first operating parameter mainly corresponds to the fuel management index, and the heat management index is considered at the same time. The second operating parameter includes a vehicle load parameter and a cooling parameter; the cooling parameter corresponds to the heat dissipation efficiency of each component of the engine compartment, meanwhile, the vehicle load parameter can represent the fuel consumption gain of the vehicle, and the larger the vehicle load is in the same running state, the larger the fuel consumption is increased. Therefore, the second operating parameter mainly corresponds to the thermal management index, and simultaneously takes the fuel consumption index into consideration.
Step S13: determining a target opening value of an active air intake grille of the vehicle according to the first operating parameter and the second operating parameter; the target opening value is an angle that an active intake grille (AGS) should open after being modified, as determined by an Engine Control Unit (ECU) by analyzing a first operating parameter and a second operating parameter.
Step S14: and correcting the current opening value of the active air inlet grille according to the target opening value so that the active air inlet grille can intake air to the vehicle according to the corrected opening value.
The current opening value is the actual opening angle before correction of the active intake grille (AGS) obtained by the Engine Control Unit (ECU).
The method and the device for detecting the fuel consumption of the automobile have the advantages that the first operation parameter of the fuel consumption index of the running process of the mark automobile is obtained, and the second operation parameter of the process heat dissipation index of the running process of the mark automobile is obtained, wherein the first operation parameter can reflect the heat dissipation efficiency of each component of an engine compartment at the same time, and the second operation index can reflect the fuel consumption at the same time, so that when an active air intake grille (AGS) flows into air with a target opening value, the automobile can furthest take account of the thermal environment of the engine compartment under the current running state, and the optimal fuel economy performance of the automobile is guaranteed.
Another embodiment of the present application describes a particular method of determining a target opening value based on a first operating parameter and a second operating parameter.
Determining the opening degree of an active air inlet grille of the vehicle according to the environment temperature value and the current vehicle speed to obtain a first opening degree value; determining the opening degree of an active air inlet grille of the vehicle according to the vehicle load and the cooling parameters to obtain a second opening degree value;
the first opening value is a louver opening value of an active intake grille (AGS) calculated by an Engine Control Unit (ECU) according to an ambient temperature value and a current vehicle speed. The second opening value is a louver opening value of an active intake grille (AGS) calculated by an Engine Control Unit (ECU) according to the vehicle load parameter and the cooling parameter.
And determining the target opening degree value according to the magnitude relation between the first opening degree value and the second opening degree value. An Engine Control Unit (ECU) preferentially takes the opening value with the minimum value of the first opening value and the second opening value as a target opening value, and controls an active air intake grille (AGS) to rotate the louver blades. Specifically, when the first opening degree value is larger than the second opening degree value, the second opening degree value is used as a target opening degree value, and when the second opening degree value is larger than the first opening degree value, the first opening degree value is used as a target opening degree value. The opening degree with the best heat dissipation effect under the current operation state of the active air intake grille (AGS) is ensured by judging the first opening degree value and the second opening degree value.
Fig. 4 is a flowchart of steps of determining a first opening value according to an embodiment of the present application, as shown in fig. 4:
step S41: determining a vehicle speed threshold value of the vehicle according to the influence degree of the fuel consumption of the vehicle against the wind resistance on the total fuel consumption of the vehicle;
the overall fuel consumption of the vehicle comprises: the consumption of maintaining vehicle speed, the consumption of opposing windage, the consumption of cabin air conditioning systems, and the consumption of fuel by other power systems or other systems that maintain vehicle operating conditions.
Step S42: when the running speed is larger than the vehicle speed threshold value, taking the maximum opening value as the first opening value;
and step S43, when the running speed is smaller than the vehicle speed threshold value, calculating to obtain the first opening value according to the environment temperature value.
When the vehicle runs at a high speed, air can cause resistance to the vehicle, and in order to resist the air resistance, the vehicle can need more power to maintain the running speed, and further more fuel can be consumed. Therefore, the vehicle speed threshold is obtained through calculation by combining performance parameters of a power system of the vehicle, when the running speed of the vehicle is smaller than the vehicle speed threshold, the wind resistance is reduced, little profit is brought to oil consumption, and the first opening value of an active air intake grille (AGS) is calculated mainly according to the environmental temperature value so as to guarantee the heat dissipation of the vehicle. When the vehicle running speed is larger than the vehicle speed threshold value, the maximum opening value is used as a first opening value of an active air intake grille (AGS) by combining the loss of wind resistance to fuel, and the fuel economy is ensured.
In one example, the vehicle speed threshold calculated in conjunction with the performance parameters of the vehicle's own powertrain is 40km/h, and the ambient temperature value is greater than 25 degrees, the engine compartment needs to dissipate heat by air convection, and the Engine Control Unit (ECU) determines the first opening value according to table 1.
TABLE 1
Ta represents an ambient temperature value of the engine compartment, and K represents an opening value calculated by an Engine Control Unit (ECU) based on the ambient temperature and the current vehicle speed. When a vehicle starts, an Engine Control Unit (ECU) starts to continuously acquire a first operation parameter, the environment temperature value is low in the initial running state of the vehicle, therefore, the Engine Control Unit (ECU) determines that the initial calibration of the first opening value is 100 opening values, namely the louver blades are fully closed, the fuel consumption is low, as the running time increases, components of an engine compartment start to generate heat, when the acquired environment temperature value is larger than 25 ℃, the K value starts to be calculated, the calculated K value is determined to be the first opening value, an active air intake grille (AGS) is controlled to be corrected to the K value, and the temperature rise rate of the heat management components of the engine compartment is reduced. Along with the increase of the running speed of the vehicle along with time, when the current vehicle speed is more than 40km/h, the consumption of the wind resistance to the oil consumption is increased, and the opening value of 100 is determined as the first opening value again, so that the fuel economy is ensured.
And determining that the first opening value performs downlink offset processing on the acquired current vehicle speed by 10km/h by an Engine Control Unit (ECU). The Engine Control Unit (ECU) will determine t1To t2And when the change amplitude of the current vehicle speed is less than 10km/h of the downlink offset, the Engine Control Unit (ECU) continuously takes the current opening value of the active air intake grille (AGS) as a first opening value, and when the change amplitude is more than 10km/h of the downlink offset, the Engine Control Unit (ECU) recalculates the opening value so as to avoid the unnecessary loss caused by the overlarge correction frequency of the active air intake grille (AGS). For example, assume t1The current speed of the vehicle obtained at the moment is 45km/h, t2The current vehicle speed obtained at the moment is 38km/h, the 38km/h is less than 40km/h, the current vehicle speed difference is less than 10km/h, and an Engine Control Unit (ECU) instructs an active air intake grille (AGS) to maintain the current opening value.
Fig. 5 is a flowchart of steps of determining a second opening value according to an embodiment of the present application, as shown in fig. 5:
the cooling parameters include engine water temperature, engine intake air temperature, and transmission oil temperature.
Step S51: determining an engine opening value corresponding to the water temperature of the engine and the air inlet temperature of the engine according to a preset engine opening demand algorithm;
step S52: determining a transmission opening value corresponding to the transmission oil temperature according to a preset transmission opening demand algorithm;
the engine and the transmission belong to parts of a vehicle power system, the water temperature of the engine and the air inlet temperature of the engine correspond to cooling parameters of the engine, and the oil temperature of the transmission corresponds to cooling parameters of the transmission, so the cooling parameters are the cooling parameters of the power system in particular.
The preset engine opening demand algorithm is the heat dissipation efficiency of the heat generation rate demand corresponding to the current power of the engine. The preset engine opening demand algorithm may be embodied in the data relationship of table 2.
TABLE 2
The preset transmission opening demand algorithm is the heat dissipation efficiency required by the current working state of the transmission. The predetermined transmission opening demand algorithm may be embodied in the data relationship of table 3.
TABLE 3
T1Is the oil temperature of the transmission acquired by an Engine Control Unit (ECU).
When a vehicle starts, an Engine Control Unit (ECU) starts to continuously acquire a second operation parameter, the engine water temperature, the engine air inlet temperature and the transmission oil temperature are lower in the initial running state of the vehicle, the Engine Control Unit (ECU) determines that a second opening value is 100 to ensure that the wind resistance loss in the initial running state of the vehicle is the lowest, the engine water temperature and the engine air inlet temperature are increased along with the continuous work of the engine, the Engine Control Unit (ECU) determines the engine opening value meeting the current heat dissipation requirement of an engine cabin according to a preset engine opening requirement algorithm, the transmission oil temperature is increased along with the continuous work of the transmission, and the Engine Control Unit (ECU) determines the transmission opening value meeting the current heat dissipation requirement of the engine cabin according to a preset transmission opening requirement algorithm.
Fig. 6 is a flowchart of determining a second opening value according to an embodiment of the present application. As shown in fig. 6, the Engine Control Unit (ECU) may acquire the load state of the detected vehicle based on the vehicle load parameter before determining the second opening value.
An Engine Control Unit (ECU) simultaneously acquires a vehicle load parameter, wherein the vehicle load parameter refers to the position state of an accelerator pedal. When the accelerator pedal is in a position state, the accelerator opening is zero, the vehicle is in a low-load working state, when the accelerator pedal is in a non-position state, the accelerator opening is not zero, and the vehicle is in a high-load working state (an acceleration state).
Step S53: when the load state meets a preset compensation correction condition, respectively performing compensation correction on the engine opening value and the transmission opening value;
and when the load state does not meet the preset compensation correction state, directly taking the calculated engine opening value and the calculated transmission opening value as second opening values. The second opening value includes an engine opening value and a transmission opening value.
The preset compensation correction state is that the accelerator pedal is in a non-position state.
The method for compensating and correcting the engine opening value can be as follows: and multiplying the calculated accelerator opening value by a correction coefficient, wherein the correction system is generally larger than 1, and the corrected accelerator opening value is larger than the accelerator opening value before correction. When the accelerator pedal is in a non-position state, the vehicle is in a low-load state, the heating is low, the opening degree value of the active air inlet grille AGS is increased, namely the opening angle of the louver blade is reduced, the wind resistance can be reduced, the excessive oil consumption of the vehicle is avoided, and the fuel economy is improved.
The method for compensating and correcting the opening value of the transmission can be as follows: and correcting a preset transmission opening demand algorithm, and re-determining a transmission opening value according to the corrected transmission opening demand algorithm. The corrected transmission opening degree demand algorithm is shown in table 4:
for the same oil temperature of the transmission, the vehicle in a high-load state needs higher-strength heat dissipation, and the vehicle in a low-load state can meet the heat dissipation requirement of the transmission by selecting low-strength heat dissipation, so that when the vehicle is in a low-load state, a larger opening value is selected, the wind resistance can be reduced, and the fuel consumption of the vehicle is avoided to be overlarge.
When an Engine Control Unit (ECU) determines that the opening value of the transmission adopts a downward offset processing method, the oil temperature of the transmission is downward offset by 3 ℃. And when the change of the acquired oil temperature of the transmission is less than 3 ℃, the active intake grille AGS is instructed to maintain the current opening value.
In the present application, the transmission opening value and the engine opening value may be corrected specifically by the temperature control MAP. MAP is a vehicle intake manifold absolute pressure sensor that measures changes in intake manifold pressure (vacuum) and converts them to a voltage signal that is sent to an Engine Control Unit (ECU) that determines engine pressure load based thereon. The engine and transmission opening values are corrected by MAP so that the engine Electronic Control Unit (ECU) correction process is based on engine load.
The corrected engine opening value and transmission opening value have an upper limit of 100.
Step S54: and determining the engine opening value after compensation correction as a second opening value of the engine, and determining the transmission opening value after compensation correction as a second opening value of the transmission.
Another embodiment of the present application provides a method for determining other opening values based on air conditioning performance, fan performance, and intelligent start-stop status.
Obtaining a third operating parameter corresponding to the windage revenue index, the third operating parameter at least comprising: the system comprises air conditioner operation parameters, fan operation parameters and intelligent start-stop state parameters;
when the vehicle runs at a low speed, the opening angle of the active air intake grille (AGS) is increased, so that the air conditioner running efficiency is higher, the experience feeling of a passenger cabin is improved, but when the vehicle runs quickly, the opening angle of the active air intake grille (AGS) is too large, and the fuel loss caused by wind resistance is too high.
When the vehicle runs at a low speed, the opening angle of the active air intake grille (AGS) is increased, so that the efficiency of the fan for circulating air in the engine compartment is higher, but when the vehicle runs at a high speed, the opening angle of the active air intake grille (AGS) is too large, so that the fuel consumption caused by wind resistance is too high.
The intelligent start-stop state parameter refers to an identifier of whether the vehicle enters an intelligent start-stop state or leaves the intelligent start-stop state. The intelligent start and stop means a function of ensuring that the engine can automatically stop after the vehicle stops for a certain time at neutral idle, and a function of ensuring that the vehicle with the engine automatically stopping due to the stop for a certain time at neutral idle can automatically start the engine when receiving signals such as trigger operation of a clutch pedal.
According to the embodiment of the application, the intelligent start-stop state parameters are acquired, so that the vehicle can be automatically flamed out due to the fact that the vehicle stops at a neutral idle speed for a certain time, when the intelligent start-stop state is entered, an active air intake grille (AGS) can be automatically closed, and invalid air intake of an engine compartment is reduced.
Calculating an opening requirement on an active air inlet grille according to the air conditioner operation parameter, the fan operation parameter and the intelligent start-stop state parameter to obtain an opening value corresponding to the wind resistance income index;
the method for determining the opening value of the air conditioner according to the operation parameters of the air conditioner comprises the following steps:
the method comprises the steps of detecting the running state of a vehicle, obtaining a pressure signal of an air conditioner by an Engine Control Unit (ECU) when the vehicle is in the running state (the vehicle speed is not 0km/h), and determining an opening value of the air conditioner through a preset air conditioner opening demand algorithm. The preset air conditioner opening demand algorithm is shown in table 5:
TABLE 5
P represents the air conditioning pressure in MPa. And the Engine Control Unit (ECU) determines that the opening value of the air conditioner can adopt a downlink offset processing method, and the downlink offset of the air conditioning pressure is 0.2 MPa. That is, when the pressure variation of the air conditioner is less than 0.2MPa, the active intake grill AGS is instructed to maintain the current opening value.
When the vehicle is in an idle state (the vehicle speed is 0km/h), an Engine Control Unit (ECU) detects a working state signal of an air conditioner, and when the working state of the air conditioner is detected to be open, the opening value of the air conditioner is determined to be 0; and when the working state of the air conditioner is detected to be off, determining the opening value of the air conditioner to be 100.
The specific method for determining the fan opening value according to the fan operation parameters is as follows:
an engine compartment air conditioning operating mode is detected. When the fan is in the intelligent running mode, an Engine Control Unit (ECU) acquires a duty ratio signal of the fan, and determines a fan opening value according to the duty ratio signal and a preset first fan opening demand algorithm. The preset first fan opening demand algorithm is shown in table 6:
TABLE 6
D represents the fan duty cycle signal. And the Engine Control Unit (ECU) determines that the opening value of the air conditioner adopts a downlink offset processing method, and performs downlink offset on the duty ratio of the fan by 5 percent, namely when the change of the duty ratio of the fan is less than 5 percent, the engine control unit instructs the active air intake grille AGS to maintain the current opening value.
And when the fan is in a high-low gear operation mode, detecting the state and the operation gear of the fan, and determining the opening value of the fan according to a preset second fan opening demand algorithm and the operation gear. The preset second fan opening demand algorithm is shown in table 7:
TABLE 7
By obtaining the fan state and the determined fan opening value, the opening value determined according to the second operation parameter (the vehicle load parameter and the cooling parameter of the power system) can be compensated, the control precision of the active air intake grille AGS is improved, and the wind resistance benefit and the fan loss caused by the air intake grille are coordinated. For example, the opening value of the AGS is determined to be 80 according to the intake air temperature of the engine, at this time, the fan is located at a low gear, the heat dissipation is not good, and the opening value of the fan can be determined according to the operating parameters of the fan, so that the opening value of the AGS determined by the intake air temperature of the engine meets the requirement that the engine compartment can still perform good heat dissipation management when the fan is at the low gear.
The step of determining the intelligent start-stop opening value according to the intelligent start-stop state parameters means that the engine control unit ECU detects an intelligent start-stop state signal, and when the intelligent start-stop state signal is detected to be activated for start-stop. And when the engine is in a flameout state, the intelligent start-stop opening value is determined to be 100.
According to the target opening value, correcting the current opening value of the active air inlet grille, wherein the correction comprises the following steps: and correcting the current opening value of the active air inlet grille according to the opening value corresponding to the wind resistance income index and the target opening value.
As shown in fig. 3, the Engine Control Unit (ECU) selects an opening value having the smallest value among the opening values based on the magnitude relationship among the first opening value determined from the ambient temperature and the current vehicle speed, the engine opening value determined from the vehicle load parameter and the engine cooling parameter, the transmission opening value determined from the vehicle load parameter and the transmission cooling parameter, the air conditioner opening value determined from the air conditioner operation parameter, the fan opening value determined from the fan operation parameter, and the smart start/stop opening value determined from the smart start/stop state parameter, and determines the opening value as a target opening value for controlling the opening of the louver of the active intake grille AGS even if the opening angle of the louver is the largest.
Assuming that the fan opening value determined by the fan operation parameter is 0, the first opening value determined by the ambient temperature and the current vehicle speed is 10, the engine opening value determined by the vehicle load parameter and the engine cooling parameter is 10, the transmission opening value determined by the vehicle load parameter and the transmission cooling parameter is 20, the air conditioner opening value determined by the air conditioner operation parameter is 30, and the intelligent start-stop opening value determined by the intelligent start-stop state parameter is 100, the fan opening value 0 determined by the fan operation parameter is selected as the target opening value.
The embodiment of the application acquires the state of the whole vehicle, and comprises the following steps: the method comprises the steps of identifying the environmental temperature value and the current vehicle speed of a vehicle fuel consumption index, identifying the vehicle load parameter of a thermal management index, the engine water temperature, the engine air inlet temperature and the transmission oil temperature, identifying the air conditioner operation parameter of a cabin thermal management state, identifying the fan operation parameter of the engine cabin wind resistance influence, identifying the intelligent start-stop state parameter of the vehicle wind resistance influence (thermal management is not considered when the intelligent start-stop state is started and stopped), comprehensively utilizing the cooling performance, the air conditioner performance, the wind resistance, the thermal environment in the engine cabin and other factors to determine the opening value of an active air inlet grille AGS, simply and effectively controlling the opening of the active air inlet grille AGS, and enabling the air passing through the active air inlet grille AGS to meet the balance of heat dissipation management and improvement of.
The specific method for rotating the louver blades of the active grille AGS to the final opened angle is as follows:
obtaining a difference vector of the target opening value and the current opening value;
the difference vector refers to an angle between the target opening degree value and the current opening degree value of the active intake grille AGS, and a direction in which the active intake grille AGS should rotate. Assuming that the target opening value is 10, the current opening value is 80, and the slat is turned off for left rotation, then the difference vector is turned 70 degrees to the right.
And controlling the blades of the active air inlet grille to rotate from the opening corresponding to the current opening value to the opening corresponding to the target opening value according to the difference vector.
Fig. 7 is an information interaction diagram for controlling the air intake of the active air intake grill according to the present application, and as shown in fig. 7, in another embodiment of the present application, the active air intake grill (AGS), the Engine Control Unit (ECU), the air conditioning unit (AC), the Transmission Control Unit (TCU), the vehicle body electronic stability system (ESP), and the FAN unit (FAN) constitute a system for controlling the air intake of the fuel vehicle.
The Engine Control Unit (ECU) may acquire a state signal of the active intake grill (AGS), and when the opening degree of the active intake grill (AGS) is not the opening degree value determined by the Engine Control Unit (ECU), the Engine Control Unit (ECU) may issue an initialization command to the active intake grill (AGS) to initialize the louver blades of the active intake grill (AGS) to a rotation angle with the opening degree value of 100.
The Engine Control Unit (ECU) may directly obtain the second operation parameters corresponding to the thermal management index, that is, the engine water temperature, the engine intake air temperature, the vehicle load parameter, and the like, from the local. An Engine Control Unit (ECU) obtains a first operating parameter corresponding to a fuel management index, i.e., a current vehicle speed, from a vehicle body electronic stability system (ESP), obtains a FAN operating parameter corresponding to a windage gain index from a FAN unit (FAN), obtains a second operating parameter corresponding to a thermal management index, i.e., a transmission oil temperature, from a Transmission Control Unit (TCU), obtains an air conditioner operating parameter corresponding to a windage gain index from an air conditioner unit (AC), and obtains a first operating parameter corresponding to a fuel management index, i.e., an ambient temperature. When the fault signal is acquired, the fault signal can be displayed by using the display unit.
Based on the same invention concept, the embodiment of the application provides an air inlet device of a fuel vehicle. FIG. 8 is a schematic diagram of an air intake device of a fuel vehicle according to an embodiment of the present application. As shown in fig. 8, the apparatus includes:
a detection module 81 for detecting a current operating state of the vehicle;
a first parameter obtaining module 82, configured to obtain a first operating parameter of the vehicle corresponding to a fuel management index and a second operating parameter corresponding to a thermal management index when the current operating state is a state in which the vehicle is started and is not in a fault;
a target opening value determination module 83, configured to determine a target opening value of an active grille of the vehicle according to the first operating parameter and the second operating parameter;
and a correcting module 84, configured to correct the current opening value of the active intake grille according to the target opening value, so that the active intake grille can intake air to the vehicle according to the corrected opening value.
Optionally, the target opening value determining module includes:
the first opening value determining submodule is used for determining the opening of an active air inlet grille of the vehicle according to the environment temperature value and the current vehicle speed to obtain a first opening value;
the second opening value determining submodule is used for determining the opening of an active air inlet grille of the vehicle according to the vehicle load and the cooling parameter to obtain a second opening value;
and the target opening value determining submodule is used for determining the target opening value according to the size relation between the first opening value and the second opening value.
Optionally, the first opening value determination sub-module includes:
the vehicle speed threshold determining subunit is used for determining the vehicle speed threshold of the vehicle according to the influence degree of the fuel consumption of the vehicle against the wind resistance on the overall fuel consumption of the vehicle;
a first opening degree value operator unit, configured to take a maximum opening degree value as the first opening degree value when the travel speed is greater than the vehicle speed threshold;
and the first opening value determining subunit is used for calculating to obtain the first opening value according to the environment temperature value when the running speed is less than the vehicle speed threshold value.
Optionally, the second opening value determination sub-module includes:
the engine opening value determining subunit is used for determining an engine opening value corresponding to the water temperature and the air inlet temperature of the engine according to a preset engine opening demand algorithm;
the transmission opening value determining subunit is used for determining a transmission opening value corresponding to the transmission oil temperature according to a preset transmission opening demand algorithm;
the compensation correction subunit is used for respectively performing compensation correction on the engine opening value and the transmission opening value when the load state meets a preset compensation correction condition;
and the second opening value determining subunit is used for determining the compensated and corrected engine opening value as a second opening value of the engine and determining the compensated and corrected transmission opening value as a second opening value of the transmission.
Optionally, the apparatus further comprises:
a second parameter obtaining module, configured to obtain a third operating parameter corresponding to the windage revenue indicator, where the third operating parameter at least includes: the system comprises air conditioner operation parameters, fan operation parameters and intelligent start-stop state parameters;
the opening value calculation module is used for calculating the opening requirement of the active air intake grille according to the third operation parameter to obtain an opening value corresponding to the wind resistance income index;
the correction module comprises:
and the correction submodule is used for correcting the current opening value of the active air inlet grille according to the opening value corresponding to the wind resistance income index and the target opening value.
Optionally, the correction module includes:
a difference value obtaining submodule, configured to obtain a difference vector between the target opening value and the current opening value;
and the control submodule is used for controlling the blades of the active air inlet grille to rotate from the opening corresponding to the current opening value to the opening corresponding to the target opening value according to the difference vector.
Optionally, the apparatus further comprises:
the first control module is used for controlling the active air inlet grille to admit air at the maximum opening value when the current running state is the flameout state of the vehicle;
and the second control module is used for controlling the active air inlet grille to admit air at the minimum opening value when the current running state is a fault state.
Based on the same inventive concept, another embodiment of the present application provides a readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps in the method for air intake of a fuel vehicle according to any one of the above embodiments of the present application.
Based on the same inventive concept, another embodiment of the present application provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and running on the processor, and when the processor executes the computer program, the electronic device implements the steps of the fuel vehicle air intake method according to any of the above embodiments of the present application.
For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
The embodiments in the present specification are described in a progressive or descriptive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one of skill in the art, embodiments of the present application may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus, and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the true scope of the embodiments of the application.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The fuel vehicle air intake method, device, equipment and storage medium provided by the application are introduced in detail, and the description of the embodiment is only used for helping to understand the method and the core idea of the application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. An air intake method for a fuel-fired vehicle, the method comprising:
detecting a current operating state of the vehicle;
when the current operation state is a state that the vehicle is started and is not in a fault state, acquiring a first operation parameter corresponding to a fuel management index and a second operation parameter corresponding to a thermal management index of the vehicle;
determining a target opening value of an active air intake grille of the vehicle according to the first operating parameter and the second operating parameter;
and correcting the current opening value of the active air inlet grille according to the target opening value so that the active air inlet grille can intake air to the vehicle according to the corrected opening value.
2. The method of claim 1, wherein the first operating parameter comprises an ambient temperature value and a current vehicle speed of the vehicle; the second operating parameters include a vehicle load parameter and a cooling parameter;
determining a target opening value of an active intake grille of the vehicle based on the first operating parameter and the second operating parameter, comprising:
determining the opening degree of an active air inlet grille of the vehicle according to the environment temperature value and the current vehicle speed to obtain a first opening degree value;
determining the opening degree of an active air inlet grille of the vehicle according to the vehicle load and the cooling parameters to obtain a second opening degree value;
and determining the target opening degree value according to the magnitude relation between the first opening degree value and the second opening degree value.
3. The method of claim 2, wherein determining the opening of the active grille shutter of the vehicle from the ambient temperature value and the current vehicle speed results in a first opening value comprising:
determining a vehicle speed threshold value of the vehicle according to the influence degree of the fuel consumption of the vehicle against the wind resistance on the total fuel consumption of the vehicle;
when the running speed is larger than the vehicle speed threshold value, taking the maximum opening value as the first opening value;
and when the running speed is smaller than the vehicle speed threshold value, calculating to obtain the first opening value according to the environment temperature value.
4. The method of claim 2, wherein the cooling parameters include engine water temperature, engine intake air temperature, and transmission oil temperature; determining the opening degree of the active air inlet grille according to the vehicle load parameter and the cooling parameter to obtain a second opening degree value, wherein the second opening degree value comprises the following steps:
determining an engine opening value corresponding to the water temperature of the engine and the air inlet temperature of the engine according to a preset engine opening demand algorithm;
determining a transmission opening value corresponding to the transmission oil temperature according to a preset transmission opening demand algorithm;
when the load state meets a preset compensation correction condition, respectively performing compensation correction on the engine opening value and the transmission opening value;
and determining the engine opening value after compensation correction as a second opening value of the engine, and determining the transmission opening value after compensation correction as a second opening value of the transmission.
5. The method of claim 1, further comprising:
obtaining a third operating parameter corresponding to the windage revenue index, the third operating parameter at least comprising: the system comprises air conditioner operation parameters, fan operation parameters and intelligent start-stop state parameters;
calculating an opening requirement on an active air inlet grille according to the air conditioner operation parameter, the fan operation parameter and the intelligent start-stop state parameter to obtain an opening value corresponding to the wind resistance income index;
according to the target opening value, correcting the current opening value of the active air inlet grille, wherein the correction comprises the following steps:
and correcting the current opening value of the active air inlet grille according to the opening value corresponding to the wind resistance income index and the target opening value.
6. The method of claims 1-5, wherein modifying the current opening value of the active intake grille based on the target opening value comprises:
obtaining a difference vector of the target opening value and the current opening value;
and controlling the blades of the active air inlet grille to rotate from the opening corresponding to the current opening value to the opening corresponding to the target opening value according to the difference vector.
7. The method of claims 1-5, further comprising:
when the current running state is a vehicle flameout state, controlling the active air inlet grille to intake air at a minimum opening value;
and when the current operation state is a fault state, controlling the active air inlet grille to inlet air at a minimum opening value.
8. An air intake device for a fuel-fired vehicle, the device comprising:
the detection module is used for detecting the current running state of the vehicle;
the first parameter acquisition module is used for acquiring a first operation parameter corresponding to a fuel management index and a second operation parameter corresponding to a thermal management index of the vehicle when the current operation state is a vehicle starting and non-failure state;
the target opening value determining module is used for determining a target opening value of an active air inlet grille of the vehicle according to the first operating parameter and the second operating parameter;
and the correction module is used for correcting the current opening value of the active air inlet grille according to the target opening value so that the active air inlet grille can intake air to a vehicle according to the corrected opening value.
9. A readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.
10. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executed implements the steps of the method according to any of claims 1-7.
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