CN110228361A - The control method and device of air-inlet grille, vehicle, controller and medium - Google Patents
The control method and device of air-inlet grille, vehicle, controller and medium Download PDFInfo
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- CN110228361A CN110228361A CN201811518877.4A CN201811518877A CN110228361A CN 110228361 A CN110228361 A CN 110228361A CN 201811518877 A CN201811518877 A CN 201811518877A CN 110228361 A CN110228361 A CN 110228361A
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- air
- inlet grille
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- setting
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/52—Radiator or grille guards ; Radiator grilles
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The present invention relates to a kind of control methods of air-inlet grille and device, vehicle, controller and medium, and the method includes obtaining the current operating condition parameter of vehicle;The corresponding best aperture of air-inlet grille is determined according to the operating condition parameter;It controls the air-inlet grille and is in the best aperture.For the present invention under the environment temperature of setting and the speed of setting, control air-inlet grille is in best aperture, is optimal vehicle in various operating condition underdrive efficiency, vehicle load is reduced, to improve the course continuation mileage of electric car.
Description
Technical field
The present invention relates to the control methods and dress of electric car heat management control field more particularly to a kind of air-inlet grille
It sets, vehicle, controller and medium.
Background technique
In recent years, electric car rapidly develops.The air-inlet grille (abbreviation AGS) of electric car can change air-inlet grille
Opening angle, in low speed or idling, air-inlet grille is all turned on, and provides good dissipating-heat environment for motor, and when vehicle reaches
It when certain speed, may turn off inside air-inlet grille, effect maximum in this way is to reduce the air resistance coefficient of vehicle, reduces
The resistance of vehicle driving.
In vehicle high-speed operation, decaying is serious when the course continuation mileage of electric car compares low speed, therefore usually in air inlet
Mouthful installation air-inlet grille, air-inlet grille is closed when high speed reduces windage, to improve course continuation mileage, still, air inlet is simultaneous simultaneously
Have and give radiator heat-dissipation function, air-inlet grille aperture is bigger, and motor temperature is lower, and electric efficiency is higher, and heat dissipation effect is got over
It is good, and in vehicle high-speed operation, vehicle load is larger, and radiating requirements are higher, and radiating requirements can just be met by opening air-inlet grille,
It follows that meeting radiating requirements and reducing air resistance coefficient is conflict demand, therefore, variable air inlet grid how is controlled,
Reduce it by windage as technical problem urgently to be resolved as far as possible under the premise of meeting vehicle radiating requirements.
Summary of the invention
Present invention aims at, the control method and device, vehicle, controller and medium of a kind of air-inlet grille are provided,
At certain environment temperature and speed, control air-inlet grille is in best aperture, reaches vehicle in various operating condition underdrive efficiency
It is optimal, vehicle load is reduced, to improve the course continuation mileage of electric car.
In order to solve the above-mentioned technical problem, according to a first embodiment of the present invention, a kind of controlling party of air-inlet grille is provided
Method, comprising:
Obtain the current operating condition parameter of vehicle;
The corresponding best aperture of air-inlet grille is determined according to the operating condition parameter;
It controls the air-inlet grille and is in the best aperture.
Further, the operating parameter includes environment temperature and speed, and the method also includes obtaining the temperature in setting
The best aperture of corresponding air-inlet grille under degree and the speed of setting.
Further, best the opening of acquisition air-inlet grille corresponding at the temperature of setting and the speed of setting
Degree, comprising the following steps:
Under the environment temperature of setting and the speed of setting, change air-inlet grille aperture, and obtain each air-inlet grille and open
Corresponding motor load power under degree;
Corresponding motor load power under obtained each air-inlet grille aperture is compared to each other, the motor is obtained
The minimum value of bearing power, corresponding air-inlet grille aperture are the best aperture.
Further, described under the environment temperature of setting and the speed of setting, change air-inlet grille aperture, and obtain every
Corresponding motor load power, includes the following steps under one air-inlet grille aperture;
Under the environment temperature of setting and the speed of setting, change air-inlet grille aperture, and obtain each air-inlet grille and open
Corresponding motor temperature under degree;
Corresponding motor output mechanical power and electric efficiency are obtained according to the motor temperature;
Air resistance coefficient and front face area are obtained according to the speed of the setting and air-inlet grille aperture;
Based on the motor output mechanical power corresponding under each air-inlet grille aperture, electric efficiency, the speed of setting,
Air resistance coefficient and front face area obtain corresponding motor load power under each air-inlet grille aperture.
Further, the motor load power is calculated by the following formula,
Wherein, P is motor load power, PMFor motor output mechanical power, η is electric efficiency, CDFor air resistance coefficient, A is
Front face area, V are speed.
Further, the operating condition parameter includes outlet tank temperature, air-conditioning high-pressure value, fan work shape
One of state, motor temperature, battery pack body temperature are a variety of.
For air resistance coefficient, A is front face area, and V is speed, according to a second embodiment of the present invention, provides a kind of air inlet grille
The control device of grid, comprising:
Module is obtained, for obtaining the current operating condition parameter of vehicle;
Determining module, for determining the corresponding best aperture of air-inlet grille according to the operating condition parameter;
Control module is in the best aperture for controlling the air-inlet grille.
Further, the operating parameter includes environment temperature and speed, and described device further includes that best aperture obtains mould
Block, for obtaining the best aperture of corresponding air-inlet grille at the temperature of setting and the speed of setting.
Further, the best aperture acquisition module includes:
Motor load power obtaining unit, for changing air-inlet grille under the environment temperature of setting and the speed of setting
Aperture, and obtain corresponding motor load power under each air-inlet grille aperture;
Best aperture obtains module acquiring unit, for by corresponding motor load under obtained each air-inlet grille aperture
Power is compared to each other, and the minimum value of the motor load power is obtained, and corresponding air-inlet grille aperture is described best
Aperture.
Further, the motor load power obtaining unit includes:
First parameter obtains subelement, opens under the environment temperature of setting and the speed of setting, changing air-inlet grille
Degree, and obtain corresponding motor temperature under each air-inlet grille aperture;
Second parameter obtains subelement, for obtaining corresponding motor output mechanical power and electricity according to the motor temperature
Engine efficiency;
Third parameter obtain subelement, for according to the speed and air-inlet grille aperture of the setting obtain air resistance coefficient and
Front face area;
Motor load power obtains subelement, for exporting machine based on the motor corresponding under each air-inlet grille aperture
Tool power, electric efficiency, the speed of setting, air resistance coefficient and front face area obtain corresponding under each air-inlet grille aperture
Motor load power.
Further, the motor load power obtains subelement and is calculated by the following formula motor load power:
Wherein, P is motor load power, PMFor motor output mechanical power, η is electric efficiency, CDFor air resistance coefficient, A is
Front face area, V are speed.
Further, the operating condition parameter includes outlet tank temperature, air-conditioning high-pressure value, fan work shape
One of state, motor temperature, battery pack body temperature are a variety of.
For air resistance coefficient, A is front face area, and V is speed,
According to a third embodiment of the present invention, a kind of vehicle is provided, the control device including the air-inlet grille.
According to a fourth embodiment of the present invention, a kind of controller is provided comprising memory and processor, the memory
It is stored with computer program, the step of described program can be realized the method when being executed by the processor.
According to a fifth embodiment of the present invention, a kind of computer readable storage medium is provided, for storing computer instruction,
The step of described instruction realizes the method when by a computer or processor execution.
The present invention has obvious advantages and beneficial effects compared with the existing technology.By above-mentioned technical proposal, the present invention
The control method and device, vehicle, controller and medium of a kind of air-inlet grille can reach comparable technical progress and practicability,
And with the extensive utility value in industry, at least have the advantage that
The present invention is sent out under the environment temperature of setting and the speed of setting, and control air-inlet grille is in best aperture, makes it
Windage is reduced as far as possible under the premise of meeting vehicle radiating requirements, so that electric motor temperature reduction bring efficiency subtracts grid bring volume
Outer power loss maximizes, so that vehicle dynamical system efficiency highest, to improve the course continuation mileage of electric car.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects, features and advantages of the invention can
It is clearer and more comprehensible, it is special below to lift preferred embodiment, and cooperate attached drawing, detailed description are as follows.
Detailed description of the invention
Fig. 1 is the control method schematic diagram for the air-inlet grille that one embodiment of the invention provides;
Fig. 2 is the electric automobile cooling system system architecture schematic diagram that one embodiment of the invention provides;
Fig. 3 is the working efficiency and motor temperature relational graph for the motor that one embodiment of the invention provides;
Fig. 4 is the control device schematic diagram for the air-inlet grille that one embodiment of the invention provides.
[symbol description]
1: obtaining module 2: determining module
3: determining module
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, control method and device, vehicle, controller to a kind of air-inlet grille proposed according to the present invention and
The specific embodiment and its effect of medium, detailed description is as follows.
The embodiment of the invention provides a kind of control methods of air-inlet grille, as shown in Figure 1, comprising the following steps:
Step S1, the current operating condition parameter of vehicle is obtained;
The operating condition parameter for influencing air-inlet grille open state has very much, is with environment temperature and speed in the present embodiment
Example is illustrated.As an example, the operating condition parameter may also include outlet tank temperature, air-conditioning high-pressure value, wind
Fan one of working condition, motor temperature, the medium parameter of battery pack body temperature or a variety of.
Step S2, the corresponding best aperture of air-inlet grille is determined according to the operating condition parameter;
As shown in Fig. 2, electric automobile cooling system system architecture includes two cooling circuits, i.e. motor cooling circuit and electricity
Pond cooling circuit, cell circuit mainly include the components such as pump, high-pressure heater (HVH) and battery pack.Radiator passes through preceding face
Air inlet radiates, and air-inlet grille (AGS) is installed on preceding face opening, can be closed or open according to demand, opens
When can by the wind in traveling to spreader surface carry out heat exchange, reduce electric motor loop coolant liquid temperature, thus to electricity
Machine radiates;The air inlet that opening can be withstood when closing, substantially reduces the heat exchange of the air on radiator and periphery, from
And radiator heat-dissipation ability is drastically reduced, and quickly electric motor loop coolant temperature can be risen, it is effective to lay in motor waste heat,
When electric motor loop coolant temperature reaches certain temperature, it can use motor waste heat at low ambient temperatures and battery pack added
Heat.
The state that air-inlet grille is opened directly affects radiator water temperature, and radiator water temperature directly affects dissipating for motor
Heat, so that the temperature of motor is influenced, and motor temperature has direct relationship, the efficiency and temperature of motor with the working efficiency of motor
The relationship of degree as shown in figure 3, the higher working efficiency of motor temperature is lower, therefore has air-inlet grille aperture bigger, get over by motor temperature
Low, electric efficiency is higher, and cost is that air resistance coefficient is bigger;Air-inlet grille aperture is smaller, and motor temperature is higher, and electric efficiency is got over
Low, income is that windage is smaller, therefore in the case where operating condition parameter is certain, there are an optimal air-inlet grille aperture,
So that vehicle dynamical system efficiency optimization, i.e. electric efficiency bring income subtract windage bring the largest loss.
It include environment temperature and speed with the operating parameter, the method also includes step S10, obtain the temperature in setting
The best aperture of corresponding air-inlet grille under degree and the speed of setting, specifically includes the following steps:
Step S101, under the environment temperature of setting and the speed of setting, change air-inlet grille aperture, and obtain it is each into
Corresponding motor load power under gas grid aperture;
As an example, the step S101 includes:
Step S1011, under the environment temperature of setting and the speed of setting, change air-inlet grille aperture, and obtain each
Corresponding motor temperature under air-inlet grille aperture;
For example, the environment temperature of setting can be maintained constant, corresponding each air-inlet grille aperture under different speeds is obtained
Under corresponding motor temperature:
The environment temperature T1 that can first set then at V1, V2, V3 ... different speeds, and changes under each speed
Air grid aperture obtains the motor temperature of each operating point, which is the steady temperature of motor, as shown in table 1, this
Sample under the environment temperature of each setting, can get a table as shown in Table 1, thus can be obtained setting temperature and
Under the speed of setting, corresponding motor temperature under various inlet grid aperture.
Environment temperature T1 | Aperture 1 | Aperture 2 | Aperture 3 | … |
V1 | T11 | T12 | T12 | … |
V2 | T21 | T22 | T23 | … |
V3 | T31 | T32 | T33 | … |
… | … | … | … | … |
Table 1
It is understood that the speed of a setting can also be maintained constant, various inlet lattice at a temperature of varying environment are obtained
Corresponding motor temperature table under grid aperture can also directly set environment temperature and setting speed, acquisition various inlet grid be opened
Corresponding motor temperature table under degree finally can obtain at the temperature of all settings and the speed combination of setting, it is different into
The temperature of motor under gas grid aperture.
Step S1012, corresponding motor output mechanical power and electric efficiency are obtained according to the motor temperature;
It should be noted that the working efficiency and motor temperature of each motor have the corresponding relationship similar with Fig. 3, specifically
Numerical value can show that details are not described herein by technological means such as experiments, according to the temperature of the motor, directly by shown in Fig. 3
Relational graph, corresponding electric efficiency and motor output mechanical power can be obtained.
Step S1013, air resistance coefficient and front face area are obtained according to the speed of the setting and air-inlet grille aperture;
Wherein, front face area can be directly acquired according to air-inlet grille aperture.Different speeds and various inlet grid aperture
Under air resistance coefficient the tests such as can slide by vehicle and obtain.
Step S1014, based on the corresponding motor output mechanical power under each air-inlet grille aperture, electric efficiency,
Speed, air resistance coefficient and the front face area of setting obtain corresponding motor load power under each air-inlet grille aperture.
Motor load power can be specifically calculated by the following formula:
Wherein, P is motor load power, PMFor motor output mechanical power, η is electric efficiency, CDFor air resistance coefficient, A is
Front face area, V are speed.Above-mentioned formula can embody the influence of electric efficiency and windage loss to vehicle transmission system efficiency,
Air-inlet grille aperture is smaller under the speed of setting, and air resistance coefficient is smaller, PMSmaller, motor temperature is higher, and η is smaller, motor load
Power is bigger;Otherwise power of motor is bigger;Therefore under speed and environment temperature certain condition, there are a best AGS aperture,
So that P is minimum, i.e. vehicle dynamical system efficiency highest operating point.
Step S102, corresponding motor load power under obtained each air-inlet grille aperture is compared to each other, is obtained
The minimum value of the motor load power is obtained, corresponding air-inlet grille aperture is the best aperture.
It should be noted that motor load power is smaller, vehicle dynamical system efficiency is higher, therefore can be by obtaining motor
The minimum value of bearing power obtains the best opening value of corresponding air-inlet grille.
The method of the embodiment of the present invention can make under the environment temperature of setting and the speed of setting, can find
One best aperture of air-inlet grille, so that vehicle dynamical system efficiency highest, to improve electric car course continuation mileage.
The embodiment of the invention also provides a kind of control devices of air-inlet grille, as shown in figure 4, including acquisition module 1, true
Cover half block 2 and control module 3, wherein obtain module 1 for obtaining the current operating condition parameter of vehicle;Determining module 2 is used for root
The corresponding best aperture of air-inlet grille is determined according to the operating condition parameter;Control module 3 is for controlling at the air-inlet grille
In the best aperture.
The operating condition parameter for influencing air-inlet grille open state has very much, is with environment temperature and speed in the present embodiment
Example is illustrated.As an example, the operating condition parameter may also include outlet tank temperature, air-conditioning high-pressure value, wind
Fan one of working condition, motor temperature, the medium parameter of battery pack body temperature or a variety of.As an example, the fortune
Row parameter includes environment temperature and speed, and described device further includes that best aperture obtains module, for obtaining the temperature in setting
With the best aperture of air-inlet grille corresponding under the speed of setting.
It includes that motor load power obtaining unit and best aperture obtain module and obtain list that the best aperture, which obtains module,
Member, wherein motor load power obtaining unit is used under the environment temperature of setting and the speed of setting, is changed air-inlet grille and is opened
Degree, and obtain corresponding motor load power under each air-inlet grille aperture;Best aperture acquisition module acquiring unit is used for will
Corresponding motor load power is compared to each other under obtained each air-inlet grille aperture, obtains the motor load power
Minimum value, corresponding air-inlet grille aperture are the best aperture.It should be noted that motor load power is smaller, vehicle
Dynamical system efficiency is higher, therefore can obtain the best of corresponding air-inlet grille by the minimum value of acquisition motor load power
Opening value.
The motor load power obtaining unit includes that the first parameter obtains subelement, the second parameter obtains subelement, the
Three parameters obtain subelement and motor load power obtains subelement, wherein the first parameter obtains subelement and is used in setting
Under environment temperature and the speed of setting, change air-inlet grille aperture, and obtain corresponding motor temperature under each air-inlet grille aperture
Degree.The environment temperature of setting can be maintained constant for example, the first parameter obtains subelement, obtained corresponding each under different speeds
Corresponding motor temperature under air-inlet grille aperture: the environment temperature T1 that can first set, then in V1, V2, V3 ... different speeds
Under, and change air grid aperture under each speed, the motor temperature of each operating point is obtained, which is motor
Steady temperature in this way under the environment temperature of each setting, can get a table as shown in Table 1 as shown in table 1, from
And it can be obtained at the temperature of setting and the speed of setting, corresponding motor temperature under various inlet grid aperture.It is understood that
, also the first parameter, which obtains subelement, can maintain the speed of a setting constant, obtain various inlet at a temperature of varying environment
Corresponding motor temperature table under grid aperture, can also directly set environment temperature and setting speed, obtain various inlet grid
Corresponding motor temperature table under aperture finally can obtain at the temperature of all settings and the speed combination of setting, different
The temperature of motor under air-inlet grille aperture.
Second parameter obtains subelement and is used to obtain corresponding motor output mechanical power and electricity according to the motor temperature
Engine efficiency;It should be noted that the working efficiency and motor temperature of each motor have the corresponding relationship similar with Fig. 3, specifically
Numerical value can show that details are not described herein by technological means such as experiments, and efficiency acquiring unit is according to the temperature of the motor, directly
By relational graph shown in Fig. 3, corresponding electric efficiency and motor output mechanical power can be obtained.
Third parameter obtain subelement be used for according to the speed and air-inlet grille aperture of the setting obtain air resistance coefficient and
Front face area;Wherein, front face area can be directly acquired according to air-inlet grille aperture.Different speeds and various inlet grid aperture
Under air resistance coefficient the tests such as can slide by vehicle and obtain.
Motor load power obtains subelement and is used to export machine based on the motor corresponding under each air-inlet grille aperture
Tool power, electric efficiency, the speed of setting, air resistance coefficient and front face area obtain corresponding under each air-inlet grille aperture
Motor load power.
The motor load power, which obtains subelement, can be calculated by the following formula motor load power:
Wherein, P is motor load power, PMFor motor output mechanical power, η is electric efficiency, CDFor air resistance coefficient, A is
Front face area, V are speed.Above-mentioned formula can embody the influence of electric efficiency and windage loss to vehicle transmission system efficiency,
Air-inlet grille aperture is smaller under the speed of setting, and air resistance coefficient is smaller, PMSmaller, motor temperature is higher, and η is smaller, motor load
Power is bigger;Otherwise power of motor is bigger;Therefore under speed and environment temperature certain condition, there are a best AGS aperture,
So that P is minimum, i.e. vehicle dynamical system efficiency highest operating point.
Described device of the embodiment of the present invention can make under the environment temperature of setting and the speed of setting, can find
One best aperture of air-inlet grille, so that vehicle dynamical system efficiency highest, to improve electric car course continuation mileage.
The embodiment of the invention also provides a kind of vehicle, the control device including air-inlet grille described in the embodiment of the present invention,
The vehicle includes electric vehicle and mixed motor-car.
The embodiment of the present invention also provides a kind of controller comprising memory and processor, the memory are stored with meter
The step of calculation machine program, described program can be realized the control method of the air-inlet grille when being executed by the processor.
The embodiment of the present invention also provides a kind of computer readable storage medium, for storing computer instruction, described instruction
The step of realizing the control method of the air-inlet grille when by a computer or processor execution.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, according to the technical essence of the invention
Any simple modification, equivalent change and modification to the above embodiments, all of which are still within the scope of the technical scheme of the invention.
Claims (15)
1. a kind of control method of air-inlet grille characterized by comprising
Obtain the current operating condition parameter of vehicle;
The corresponding best aperture of air-inlet grille is determined according to the operating condition parameter;
It controls the air-inlet grille and is in the best aperture.
2. the control method of air-inlet grille according to claim 1, which is characterized in that
The operating parameter includes environment temperature and speed, and the method also includes obtaining in the temperature of setting and the vehicle of setting
The best aperture of the lower corresponding air-inlet grille of speed.
3. the control method of air-inlet grille according to claim 2, which is characterized in that
The best aperture of acquisition air-inlet grille corresponding at the temperature of setting and the speed of setting, including following step
It is rapid:
Under the environment temperature of setting and the speed of setting, change air-inlet grille aperture, and obtain under each air-inlet grille aperture
Corresponding motor load power;
Corresponding motor load power under obtained each air-inlet grille aperture is compared to each other, the motor load is obtained
The minimum value of power, corresponding air-inlet grille aperture are the best aperture.
4. the control method of air-inlet grille according to claim 3, which is characterized in that
It is described under the environment temperature of setting and the speed of setting, change air-inlet grille aperture, and obtain each air-inlet grille and open
Corresponding motor load power, includes the following steps under degree;
Under the environment temperature of setting and the speed of setting, change air-inlet grille aperture, and obtain under each air-inlet grille aperture
Corresponding motor temperature;
Corresponding motor output mechanical power and electric efficiency are obtained according to the motor temperature;
Air resistance coefficient and front face area are obtained according to the speed of the setting and air-inlet grille aperture;
Based on the motor output mechanical power corresponding under each air-inlet grille aperture, electric efficiency, the speed of setting, windage
Coefficient and front face area obtain corresponding motor load power under each air-inlet grille aperture.
5. the control method of air-inlet grille according to claim 4, which is characterized in that
The motor load power is calculated by the following formula,
Wherein, P is motor load power, PMFor motor output mechanical power, η is electric efficiency, CDFor air resistance coefficient, A is windward
Area, V are speed.
6. the control method of air-inlet grille according to claim 1, which is characterized in that
The operating condition parameter include outlet tank temperature, air-conditioning high-pressure value, fan operating state, motor temperature,
One of battery pack body temperature is a variety of.
7. a kind of control device of air-inlet grille characterized by comprising
Module is obtained, for obtaining the current operating condition parameter of vehicle;
Determining module, for determining the corresponding best aperture of air-inlet grille according to the operating condition parameter;
Control module is in the best aperture for controlling the air-inlet grille.
8. the control device of air-inlet grille according to claim 7, which is characterized in that
The operating parameter includes environment temperature and speed, and described device further includes that best aperture obtains module, for obtaining
The best aperture of corresponding air-inlet grille at the temperature of setting and the speed of setting.
9. the control device of air-inlet grille according to claim 8, which is characterized in that
The best aperture obtains module
Motor load power obtaining unit, for changing air-inlet grille aperture under the environment temperature of setting and the speed of setting,
And obtain corresponding motor load power under each air-inlet grille aperture;
Best aperture obtains module acquiring unit, for by corresponding motor load power under obtained each air-inlet grille aperture
It is compared to each other, obtains the minimum value of the motor load power, corresponding air-inlet grille aperture is the best aperture.
10. the control device of air-inlet grille according to claim 9, which is characterized in that
The motor load power obtaining unit includes:
First parameter obtains subelement, under the environment temperature of setting and the speed of setting, changing air-inlet grille aperture, and
Obtain corresponding motor temperature under each air-inlet grille aperture;
Second parameter obtains subelement, for obtaining corresponding motor output mechanical power and motor effect according to the motor temperature
Rate;
Third parameter obtains subelement, for according to the speed and air-inlet grille aperture of the setting acquisition air resistance coefficient and windward
Area;
Motor load power obtains subelement, for exporting mechanical work based on the motor corresponding under each air-inlet grille aperture
Rate, electric efficiency, the speed of setting, air resistance coefficient and front face area obtain corresponding electricity under each air-inlet grille aperture
Machine bearing power.
11. the control device of air-inlet grille according to claim 10, which is characterized in that
The motor load power obtains subelement and is calculated by the following formula motor load power:
Wherein, P is motor load power, PMFor motor output mechanical power, η is electric efficiency, CDFor air resistance coefficient, A is windward
Area, V are speed.
12. the control method of air-inlet grille according to claim 7, which is characterized in that
The operating condition parameter include outlet tank temperature, air-conditioning high-pressure value, fan operating state, motor temperature,
One of battery pack body temperature is a variety of.
13. a kind of vehicle, which is characterized in that the control device including air-inlet grille described in any one of claim 7-12.
14. a kind of controller comprising memory and processor, it is characterised in that: the memory is stored with computer program,
Described program can be realized method described in any one of claim 1 to 6 claim when being executed by the processor
The step of.
15. a kind of computer readable storage medium, for storing computer instruction, it is characterised in that: described instruction is by a meter
The step of calculation machine or processor realize the method as described in any one of claim 1 to 6 claim when executing.
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CN201811518877.4A CN110228361B (en) | 2018-12-12 | 2018-12-12 | Control method and device of air inlet grille, vehicle, controller and medium |
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CN201811518877.4A CN110228361B (en) | 2018-12-12 | 2018-12-12 | Control method and device of air inlet grille, vehicle, controller and medium |
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CN110228361B CN110228361B (en) | 2020-12-01 |
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Cited By (8)
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CN111572409A (en) * | 2020-05-01 | 2020-08-25 | 东风汽车集团有限公司 | Control method of electric automobile thermal management system |
CN112109538A (en) * | 2020-09-25 | 2020-12-22 | 长城汽车股份有限公司 | Fuel vehicle air intake method, device, equipment and storage medium |
CN112757893A (en) * | 2021-01-29 | 2021-05-07 | 长城汽车股份有限公司 | Vehicle grille control method, medium, equipment and vehicle |
CN113002292A (en) * | 2021-03-23 | 2021-06-22 | 奇瑞新能源汽车股份有限公司 | Active air inlet grille control method and device, vehicle control unit and new energy automobile |
CN114186338A (en) * | 2021-11-30 | 2022-03-15 | 重庆长安汽车股份有限公司 | Calibration method for opening degree of automobile active air inlet grille |
CN114312286A (en) * | 2021-12-02 | 2022-04-12 | 武汉格罗夫氢能汽车有限公司 | Active grille control method, storage medium and intelligent terminal |
CN114626252A (en) * | 2022-05-17 | 2022-06-14 | 长城汽车股份有限公司 | Wind resistance and thermal management multi-objective optimization method and device, electronic equipment and medium |
CN117284076A (en) * | 2023-09-13 | 2023-12-26 | 赛力斯汽车有限公司 | Control method and device for active air inlet grille, computer equipment and storage medium |
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CN111572409A (en) * | 2020-05-01 | 2020-08-25 | 东风汽车集团有限公司 | Control method of electric automobile thermal management system |
CN112109538A (en) * | 2020-09-25 | 2020-12-22 | 长城汽车股份有限公司 | Fuel vehicle air intake method, device, equipment and storage medium |
CN112757893A (en) * | 2021-01-29 | 2021-05-07 | 长城汽车股份有限公司 | Vehicle grille control method, medium, equipment and vehicle |
CN113002292A (en) * | 2021-03-23 | 2021-06-22 | 奇瑞新能源汽车股份有限公司 | Active air inlet grille control method and device, vehicle control unit and new energy automobile |
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CN114186338B (en) * | 2021-11-30 | 2022-09-06 | 重庆长安汽车股份有限公司 | Calibration method for opening degree of automobile active air inlet grille |
CN114312286A (en) * | 2021-12-02 | 2022-04-12 | 武汉格罗夫氢能汽车有限公司 | Active grille control method, storage medium and intelligent terminal |
CN114312286B (en) * | 2021-12-02 | 2023-10-24 | 武汉格罗夫氢能汽车有限公司 | Active grid control method, storage medium and intelligent terminal |
CN114626252A (en) * | 2022-05-17 | 2022-06-14 | 长城汽车股份有限公司 | Wind resistance and thermal management multi-objective optimization method and device, electronic equipment and medium |
CN117284076A (en) * | 2023-09-13 | 2023-12-26 | 赛力斯汽车有限公司 | Control method and device for active air inlet grille, computer equipment and storage medium |
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