CN114056082A - Control method of active air inlet grille - Google Patents
Control method of active air inlet grille Download PDFInfo
- Publication number
- CN114056082A CN114056082A CN202111586531.XA CN202111586531A CN114056082A CN 114056082 A CN114056082 A CN 114056082A CN 202111586531 A CN202111586531 A CN 202111586531A CN 114056082 A CN114056082 A CN 114056082A
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- Prior art keywords
- active
- air inlet
- controlling
- temperature
- vehicle
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000000110 cooling liquid Substances 0.000 claims abstract description 22
- 238000001514 detection method Methods 0.000 description 12
- 238000005265 energy consumption Methods 0.000 description 5
- 238000004134 energy conservation Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention provides a control method of an active air inlet grille, which comprises the following steps: acquiring state information of the vehicle, wherein the state information comprises the temperature of cooling liquid, whether a retarder is started or not, whether an air conditioner is started or not, the rotating speed of a fan of an engine, the load rate of the engine, the temperature after intercooling after the intercooling is finished, and the speed of the vehicle; when the temperature of the cooling liquid is less than 83 ℃, the retarder is closed, the air conditioner is closed, the rotating speed of the fan is less than or equal to 100rpm, the load rate is less than 80, and the temperature after intercooling is less than or equal to 55 ℃, the active air inlet grille is controlled to be closed; and when the temperature of the cooling liquid is more than 83 ℃, or the retarder is started, or the air conditioner is started, or the rotating speed of the fan is more than 100rpm, or the load factor is more than 80, or the temperature after intercooling is more than 55 ℃, controlling the active air inlet grille to be opened.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a control method of an active air inlet grille.
Background
With the aggravation of environmental crisis and energy crisis, energy conservation and emission reduction become an important challenge in the current automobile development.
Disclosure of Invention
The invention aims to provide a control method of an active air intake grille, which is used for reducing the energy consumption of an automobile and solving the problems in the prior art.
In order to solve the technical problem, the invention provides a control method of an active air intake grille, which comprises the following steps:
acquiring state information of a vehicle, wherein the state information comprises the temperature of cooling liquid, whether a retarder is started or not, whether an air conditioner is started or not, the rotating speed of a fan of an engine, the load rate of the engine, the temperature after intercooling after passing through an intercooler and the speed of the vehicle;
when the temperature of the cooling liquid is less than 83 ℃, the retarder is closed, the air conditioner is closed, the rotating speed of the fan is less than or equal to 100rpm, the load rate is less than 80, and the after-intercooling temperature is less than or equal to 55 ℃, controlling the active air inlet grille to be closed;
and when the temperature of the cooling liquid is more than 83 ℃, or the retarder is started, or the air conditioner is started, or the rotating speed of the fan is more than 100rpm, or the load factor is more than or equal to 80, or the after-intercooling temperature is more than 55 ℃, controlling the active air inlet grille to be opened.
In one embodiment, the control method further comprises controlling the opening degree of the active intake grille;
and when the temperature of the cooling liquid is more than 83 ℃ and less than 93 ℃, the retarder is closed, the air conditioner is closed, the rotating speed of the fan is less than or equal to 100rpm, the load factor is less than 80, and the after-intercooling temperature is less than or equal to 55 ℃, controlling the active air inlet grille to be opened and controlling the opening degree of the active air inlet grille to be 0-90 ℃.
In one embodiment, the status information further includes vehicle speed; and when the vehicle speed is more than or equal to 60km/h, controlling the opening degree of the active air inlet grille to be 30 degrees.
In one embodiment, the status information further includes vehicle speed; and when the vehicle speed is less than 60km/h, controlling the opening degree of the active air inlet grille to be 60 degrees.
In one embodiment, the method further comprises the following steps: and when the temperature of the cooling liquid is greater than 93 ℃, or the air conditioner is started, the rotating speed of the fan is greater than 100rpm, or the retarder is started, or the load factor is greater than or equal to 80, or the after-intercooling temperature is greater than 55 ℃, controlling the opening degree of the active air inlet grille to be 90 degrees.
In one embodiment, before controlling the active intake grille to close, the method further comprises:
and after the vehicle is not started and the vehicle is electrified, controlling the active air inlet grille to be in a full-open state to a full-closed state, and then returning to the full-open state from the full-closed state to perform self-checking.
In one embodiment, the method further comprises the following steps:
controlling the active grille to a fully open state after the vehicle is stopped and the vehicle is turned off.
In one embodiment, the control method further includes:
when the active air inlet grille is in fault and is detected, the active air inlet grille keeps the current state.
According to the technical scheme, the invention has the advantages and positive effects that:
according to the control method of the active air inlet grille, the active air inlet grille is closed and opened according to the temperature of the cooling liquid of the vehicle, whether the retarder is opened or not, whether the air conditioner is opened or not, the rotating speed of the fan of the engine, the load rate of the engine and the temperature after intercooling, so that the heat is fully utilized, the energy consumption is reduced, and the requirements of energy conservation and emission reduction are met.
Drawings
FIG. 1 is a flow chart of a control method in the present invention.
Detailed Description
Exemplary embodiments that embody features and advantages of the invention are described in detail below in the specification. It is to be understood that the invention is capable of other embodiments and that various changes in form and details may be made therein without departing from the scope of the invention and the description and drawings are to be regarded as illustrative in nature and not as restrictive.
For further explanation of the principles and construction of the present invention, reference will now be made in detail to the preferred embodiments of the present invention, which are illustrated in the accompanying drawings.
The invention provides a control method of an active air inlet grille, which is used for reducing the energy consumption of a vehicle, further achieving the purpose of reducing the oil consumption and meeting the requirements of energy conservation and emission reduction.
It should be noted that, the active grille is installed on the front frame of the vehicle, and the active grille includes a blade and a motor, and the motor drives the blade to rotate, so that the active grille has an open state and a closed state, and different opening states.
In the embodiment, when the active air inlet grille is in a fully opened state, the opening degree is 90 degrees; when the active air inlet grille is in a complete closing state, the opening degree of the active air inlet grille is 0 degree. And the active air inlet grille can rotate between 0 and 90 degrees.
Referring to fig. 1, the control method of the active intake grill includes the steps of:
and S1, acquiring the state information of the vehicle.
The state information of the vehicle comprises the temperature of the cooling liquid, whether a retarder is started or not, whether an air conditioner is started or not, the rotating speed of a fan of the engine, the load rate of the engine and the temperature after intercooling after the intercooling is conducted.
The retarder is used to reduce the speed of the vehicle.
The intercooler is used for reducing the high-temperature air temperature after the pressure boost to reduce the heat load of engine, improve the air input, and then increase the power of engine.
The detection of the temperature of the cooling liquid, the detection of whether the retarder is started, the detection of whether the air conditioner is started, the detection of the rotating speed of a fan of the engine, the detection of the load rate of the engine, the detection of the temperature after intercooling and the detection of the vehicle speed of the vehicle can adopt detection methods in the related technology, and the detection is not specifically improved.
And S2, controlling the active air inlet grille to close when the temperature of the cooling liquid is less than 83 ℃, the retarder is closed, the air conditioner is closed, the rotating speed of the fan is less than or equal to 100rpm, the load factor is less than 80 and the after-intercooling temperature is less than or equal to 55 ℃.
Specifically, when the above conditions are simultaneously satisfied, the vehicle may be started immediately, or the vehicle may be started shortly after and at a low vehicle speed, or the vehicle may be in a low ambient temperature and at a low vehicle speed.
When the vehicle is just started, the active air inlet grille is closed, cold air is reduced from entering, the engine is rapidly preheated and started in an accelerated mode, and oil consumption is further reduced.
When the vehicle is started shortly and the vehicle speed is low, the heat energy of the engine needs to be continuously utilized to continuously heat the engine.
When the ambient temperature of the vehicle is low and the vehicle speed is low, the heat energy of the engine also needs to be continuously utilized.
And S3, when the temperature of the cooling liquid is more than 83 ℃, or the retarder is started, or the air conditioner is started, or the rotating speed of the fan is more than 100rpm, or the load factor is more than or equal to 80, or the temperature after intercooling is more than 55 ℃, controlling the active air inlet grille to be opened.
Specifically, when any of the above conditions occurs, it indicates that the engine does not need to continue to heat up or even dissipate heat quickly, or that the vehicle speed is fast and the wind resistance needs to be reduced to improve the running performance, and therefore, the active grille shutter is opened.
Further, the opening degree of the active grille opening may be controlled as follows:
and S31, controlling the active air intake grille to be opened and controlling the opening degree to be 0-90 degrees when the temperature of the cooling liquid is more than 83 ℃ and less than 93 ℃, the retarder is closed, the air conditioner is closed, the rotating speed of the fan is less than or equal to 100rpm, the load factor is less than 80, and the after-intercooling temperature is less than or equal to 55 ℃.
Wherein the state information of the vehicle further includes a vehicle speed. The vehicle speed is detected by a sensor mounted at the gearbox.
And when the vehicle speed is more than or equal to 60km/h, controlling the opening degree of the active air inlet grille to be 30 degrees. At the moment, the vehicle is in a high-speed running state, the opening degree of the active air inlet grille is 30 degrees, a certain blocking effect on airflow is achieved, wind resistance can be reduced, and running performance is improved.
And when the vehicle speed is less than 60km/h, controlling the opening degree of the active air inlet grille to be 60 degrees. At this time, the vehicle is in a low-speed running state, the opening degree of the active air inlet grille is 60 degrees, and a large amount of air enters to play a role in cooling.
And S32, controlling the opening degree of the active air inlet grille to be 90 degrees when the temperature of the cooling liquid is more than 93 degrees centigrade or the air conditioner is started and the rotating speed of the fan is more than 100rpm or the retarder is started or the load factor is more than or equal to 80 or the temperature after the intercooler is more than 55 degrees centigrade.
Specifically, when any one of the above conditions is satisfied, it indicates that heat dissipation to the engine is required, and therefore, the opening degree of the active intake grille is controlled to 90 °, i.e., the fully open state.
Further, the method also comprises the following steps:
and S4, controlling the active air inlet grille to be in a fully open state after the vehicle stops running and the vehicle is flamed out.
Namely, when the vehicle stops, the engine is radiated through the fully opened state of the active air inlet grille, and the service life of the engine is prolonged.
Further, before step S1, the method further includes the steps of:
s0: and after the vehicle is not started and the vehicle is electrified, controlling the active air inlet grille to be in an open state to a closed state, and then returning to the open state from the closed state to perform self-checking.
Specifically, the vehicle is not started and the vehicle is powered ON, i.e., the power switch of the vehicle is in an ON state, at which time the active grille performs a self-check to make sure it can receive a signal and turn.
The control method in the present application further includes:
when the active air inlet grille is in fault for detection, the active air inlet grille keeps the current state.
Specifically, the failure of the active intake grill includes a structural failure of the active intake grill or a failure of a sensor that receives a transmission signal.
According to the control method of the active air inlet grille, the closing, the complete opening and the control of different opening degrees of the active air inlet grille are realized according to the detection of the temperature of the cooling liquid of the vehicle, the opening of the retarder, the opening of the air conditioner, the fan rotating speed of the engine, the load factor of the engine, the temperature after inter-cooling and the vehicle speed, the full utilization of heat when the engine needs heat is realized, and the air resistance is reduced by adjusting the opening degree, so that the running performance of the vehicle is improved, and the energy consumption is reduced.
In this embodiment, the control module of the active grille shutter, the electronic control unit of the engine, the electronic control unit of the retarder, the control system of the air conditioner, and various detection sensors of the vehicle are all located in the same local area network, so that the response speed of the control method is high.
According to the technical scheme, the invention has the advantages and positive effects that:
according to the control method of the active air inlet grille, the active air inlet grille is closed and opened according to the temperature of the cooling liquid of the vehicle, whether the retarder is opened or not, whether the air conditioner is opened or not, the rotating speed of the fan of the engine, the load rate of the engine and the temperature after intercooling, so that the heat is fully utilized, the energy consumption is reduced, and the requirements of energy conservation and emission reduction are met.
While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
Claims (8)
1. A method of controlling an active grille shutter, comprising the steps of:
acquiring state information of a vehicle, wherein the state information comprises the temperature of cooling liquid, whether a retarder is started or not, whether an air conditioner is started or not, the rotating speed of a fan of an engine, the load rate of the engine, the temperature after intercooling after passing through an intercooler and the speed of the vehicle;
when the temperature of the cooling liquid is less than 83 ℃, the retarder is closed, the air conditioner is closed, the rotating speed of the fan is less than or equal to 100rpm, the load rate is less than 80, and the after-intercooling temperature is less than or equal to 55 ℃, controlling the active air inlet grille to be closed;
and when the temperature of the cooling liquid is more than 83 ℃, or the retarder is started, or the air conditioner is started, or the rotating speed of the fan is more than 100rpm, or the load factor is more than or equal to 80, or the after-intercooling temperature is more than 55 ℃, controlling the active air inlet grille to be opened.
2. The control method of an active intake grille of claim 1 further comprising opening control of the active intake grille;
and when the temperature of the cooling liquid is more than 83 ℃ and less than 93 ℃, the retarder is closed, the air conditioner is closed, the rotating speed of the fan is less than or equal to 100rpm, the load factor is less than 80, and the after-intercooling temperature is less than or equal to 55 ℃, controlling the active air inlet grille to be opened and controlling the opening degree of the active air inlet grille to be 0-90 ℃.
3. The control method of an active intake grill according to claim 2, wherein the state information further includes a vehicle speed; and when the vehicle speed is more than or equal to 60km/h, controlling the opening degree of the active air inlet grille to be 30 degrees.
4. The control method of an active intake grill according to claim 2, wherein the state information further includes a vehicle speed; and when the vehicle speed is less than 60km/h, controlling the opening degree of the active air inlet grille to be 60 degrees.
5. The method of controlling an active intake grill according to claim 2, further comprising: and when the temperature of the cooling liquid is greater than 93 ℃, or the air conditioner is started, the rotating speed of the fan is greater than 100rpm, or the retarder is started, or the load factor is greater than or equal to 80, or the after-intercooling temperature is greater than 55 ℃, controlling the opening degree of the active air inlet grille to be 90 degrees.
6. The method of controlling an active intake grille of claim 1 further comprising, prior to controlling the active intake grille to close:
and after the vehicle is not started and the vehicle is electrified, controlling the active air inlet grille to be in a full-open state to a full-closed state, and then returning to the full-open state from the full-closed state to perform self-checking.
7. The method of controlling an active intake grill according to claim 1, further comprising the step of:
controlling the active grille to a fully open state after the vehicle is stopped and the vehicle is turned off.
8. The control method of an active intake grille of claim 1 further comprising:
when the active air inlet grille is in fault and is detected, the active air inlet grille keeps the current state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111586531.XA CN114056082A (en) | 2021-12-21 | 2021-12-21 | Control method of active air inlet grille |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111586531.XA CN114056082A (en) | 2021-12-21 | 2021-12-21 | Control method of active air inlet grille |
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| Publication Number | Publication Date |
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| CN114056082A true CN114056082A (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111586531.XA Pending CN114056082A (en) | 2021-12-21 | 2021-12-21 | Control method of active air inlet grille |
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| CN (1) | CN114056082A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114684052A (en) * | 2022-04-07 | 2022-07-01 | 潍柴雷沃重工股份有限公司 | Intelligent rapid vehicle heating system, method, medium and equipment for agricultural machinery |
| CN115370460A (en) * | 2022-08-09 | 2022-11-22 | 东风柳州汽车有限公司 | Actively-controlled cooling system |
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2021
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| JP2006177163A (en) * | 2004-12-20 | 2006-07-06 | Usui Kokusai Sangyo Kaisha Ltd | Control method for externally controlled fan clutch |
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Application publication date: 20220218 |