CN117341461A - Control method and device for active air inlet grille of vehicle - Google Patents
Control method and device for active air inlet grille of vehicle Download PDFInfo
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- CN117341461A CN117341461A CN202311145903.4A CN202311145903A CN117341461A CN 117341461 A CN117341461 A CN 117341461A CN 202311145903 A CN202311145903 A CN 202311145903A CN 117341461 A CN117341461 A CN 117341461A
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- 238000000034 method Methods 0.000 title claims abstract description 62
- 230000017525 heat dissipation Effects 0.000 claims abstract description 141
- 238000012544 monitoring process Methods 0.000 claims abstract description 20
- 230000008569 process Effects 0.000 claims abstract description 18
- 238000004364 calculation method Methods 0.000 claims description 15
- 238000004590 computer program Methods 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000012937 correction Methods 0.000 claims description 7
- 230000005855 radiation Effects 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 claims description 2
- 239000002826 coolant Substances 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 239000000110 cooling liquid Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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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- 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
- B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
- B60K13/02—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning intake
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- 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)
Abstract
The application discloses a control method and a device for an active air inlet grille of a vehicle, relates to the technical field of new energy automobiles, and adopts the main technical scheme that: in the running process of the vehicle, monitoring the current speed of the vehicle and working state parameters of all components in the whole vehicle thermal management system; determining the heat dissipation requirement corresponding to each component according to the working state parameters of the component; combining heat dissipation requirements corresponding to the components to serve as target heat dissipation requirements corresponding to the whole vehicle heat management system; calculating the heat dissipation capacity required by the system according to the target heat dissipation requirement; and controlling the active air inlet grille to reach a target opening according to the system required heat dissipation capacity and the current speed of the vehicle. The method is applied to the comprehensive heat dissipation requirement in the whole vehicle thermal management system, and a more optimal solution for controlling the active air inlet grille is provided.
Description
Technical Field
The application relates to the technical field of new energy automobiles, in particular to a control method and device for an active air inlet grille of a vehicle.
Background
The active air inlet grille is a grille capable of automatically adjusting the opening and closing degree on a vehicle, belongs to a vehicle body accessory, and is widely applied in the field of vehicles in order to ensure the air inlet quantity of a front cabin of the vehicle and reduce the wind resistance in the running process of the vehicle.
Currently, in a conventional whole vehicle thermal management system, an active air intake grille automatically controls the opening degree according to changes of air-conditioning high-pressure, motor temperature, motor controller (Motor control unit, MCU) temperature, on Board Charger (OBC) temperature, direct Current-Direct Current (DCDC) temperature, and the like On a refrigerant circuit radiating through an electronic fan. However, the heat dissipation components involved in the heat dissipation work in different pressure or temperature ranges are not the same, and accordingly, the opening degree of the active air inlet grille can be changed along with the continuous control, so that how to automatically control the opening degree of the active air inlet grille well, so as to meet the heat dissipation requirement of the whole vehicle heat management system adaptively, and a better automatic solution is needed.
Disclosure of Invention
The application provides a control method and a control device for an active air inlet grille of a vehicle, which mainly aim to meet comprehensive heat dissipation requirements in a whole vehicle heat management system and provide a more optimal solution for controlling the active air inlet grille.
In order to achieve the above purpose, the present application mainly provides the following technical solutions:
the first aspect of the application provides a control method of an active air inlet grille of a vehicle, which comprises the following steps:
in the running process of the vehicle, monitoring the current speed of the vehicle and working state parameters of all components in the whole vehicle thermal management system;
determining the heat dissipation requirement corresponding to each component according to the working state parameters of the component;
combining heat dissipation requirements corresponding to the components to serve as target heat dissipation requirements corresponding to the whole vehicle heat management system;
calculating the heat dissipation capacity required by the system according to the target heat dissipation requirement;
and controlling the active air inlet grille to reach a target opening according to the system required heat dissipation capacity and the current speed of the vehicle.
A second aspect of the present application provides a control device for an active grille shutter of a vehicle, the device comprising:
the monitoring unit is used for monitoring the current speed of the vehicle and working state parameters of all parts in the whole vehicle thermal management system in the vehicle driving process;
the determining unit is used for determining the heat dissipation requirement corresponding to each component according to the working state parameters of each component obtained by the monitoring unit;
the combination unit is used for combining the heat dissipation requirements corresponding to the components obtained by the determination unit and serving as target heat dissipation requirements corresponding to the whole vehicle heat management system;
the calculating unit is used for calculating the heat dissipation capacity required by the system according to the target heat dissipation requirement obtained by the combining unit;
and the control unit is used for controlling the active air inlet grille to achieve the target opening according to the system required heat dissipation capacity obtained by the calculation unit and the current vehicle speed obtained by the monitoring unit.
A third aspect of the present application provides a computer-readable storage medium having a computer program stored thereon, which when executed by a processor, implements a method of controlling an active grille for a vehicle as above.
A fourth aspect of the present application provides an electronic device, comprising: the control method for the active air inlet grille of the vehicle comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor, wherein the computer program is executed by the processor.
By means of the technical scheme, the technical scheme provided by the application has the following advantages:
the application provides a control method and a device for an active air inlet grille of a vehicle, wherein in the running process of the vehicle, working state parameters of all parts in a whole vehicle thermal management system are monitored to determine which parts have heat dissipation requirements, so that the heat dissipation requirements are combined to serve as target heat dissipation requirements of the whole vehicle thermal management system (namely, can be called as comprehensive heat dissipation requirements of the whole vehicle thermal management system), the heat dissipation capacity required by the system is calculated according to the target heat dissipation requirements, and the active air inlet grille is controlled to automatically and dynamically reach a target opening according to the heat dissipation capacity required by the system and the current speed of the vehicle. The heat dissipation components involved in heat dissipation work under different pressure or temperature ranges are not the same, and the comprehensive heat dissipation requirement of the whole vehicle heat management system can be obtained by summarizing the components with the heat dissipation requirement, so that the heat dissipation requirement of the whole vehicle heat management system is more satisfied by controlling the opening degree of the active air inlet grille dynamically changing through comprehensive consideration, and a more optimized solution for controlling the active air inlet grille is provided.
The foregoing description is only an overview of the technical solutions of the present application, and may be implemented according to the content of the specification in order to make the technical means of the present application more clearly understood, and in order to make the above-mentioned and other objects, features and advantages of the present application more clearly understood, the following detailed description of the present application will be given.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
fig. 1 is a flowchart of a control method of an active air intake grille of a vehicle according to an embodiment of the present application;
FIG. 2 is a flowchart of another method for controlling an active grille in a vehicle according to an embodiment of the present disclosure;
fig. 3 is a flowchart illustrating a control method for implementing an active grille according to an example of the present application;
fig. 4 is a block diagram of a control device for an active grille in a vehicle according to an embodiment of the present disclosure;
fig. 5 is a block diagram of another control device for an active grille of a vehicle according to an embodiment of the present application.
Detailed Description
Exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The heat dissipation requirement in the whole vehicle thermal management system mainly comprises passenger cabin cooling, battery cooling and electric drive cooling, and the heating requirement mainly comprises passenger cabin heating and battery heating. In a conventional whole vehicle thermal management system, an active air inlet grille automatically controls opening degrees correspondingly according to changes such as air-conditioning high-pressure On a refrigerant circuit radiating through an electronic fan, motor temperature, motor controller (Motor control unit, MCU) temperature, on-board charger (OBC) temperature, direct Current-Direct Current (DCDC) temperature and the like.
In addition, the control opening degree requirements of different components with heat dissipation requirements under different pressure or temperature ranges on the active air inlet grille are different, and the control opening degree requirements of different components with heat dissipation requirements under different pressure or temperature ranges under consideration of vehicle speed factors are shown in the following table by way of example.
List one
For components with heat dissipation requirements, it is equivalent to a single heat dissipation requirement, and the heat dissipation components involved in the heat dissipation operation under different pressure or temperature ranges are not all the same, for example, besides the examples shown in table one, it should be possible, but not limited to, that variations in factors such as battery temperature, coolant temperature, compressor rotation speed, etc. may also cause the related components to have heat dissipation requirements.
Therefore, the inventor finds that when a plurality of heat dissipation requirements exist at the same time, each time, all the factors need to be comprehensively considered, and then the opening degree of the active air inlet grille is automatically controlled to better adapt to the heat dissipation requirements of the whole vehicle heat management system.
Based on the above consideration, the embodiment of the present application provides a control method for an active air intake grille of a vehicle, as shown in fig. 1, and the following specific steps are provided for this embodiment of the present application:
101. in the running process of the vehicle, the current speed of the vehicle and the working state parameters of all components in the whole vehicle thermal management system are monitored.
In the running process of the vehicle, such as high-speed running, the proper opening degree of the active air inlet grille can bring lower wind resistance coefficient for the vehicle, and the stability and the fuel economy of the vehicle are improved. The embodiment of the application also considers the influence caused by the current speed of the vehicle when controlling the opening degree of the active air inlet grille.
In addition to monitoring the current speed of the vehicle, the working state parameters of each component in the whole vehicle thermal management system are monitored by the embodiment of the application, including but not limited to: motor temperature, MCU temperature, DCDC/OBC temperature, battery temperature, electric drive system over-temperature state, battery over-temperature state, and battery thermal runaway state.
And also monitors, for example: the heat management system coolant flow, coolant temperature, high pressure, low pressure, compressor speed, radiator inlet air temperature, electric drive inlet coolant temperature, radiator bypass valve opening, system heating demand, heat management system fault status, etc.
102. And determining the heat dissipation requirement corresponding to the component according to the working state parameters of each component.
According to the working state parameters of each component, such as the temperature of the motor, whether the motor has heat dissipation requirements or not can be judged.
103. And combining the heat dissipation requirements corresponding to all the components to serve as target heat dissipation requirements corresponding to the whole vehicle heat management system.
The heat dissipation requirements of all the components are combined, which is equivalent to comprehensively considering that the control opening requirements of different components with heat dissipation requirements under different pressure or temperature ranges on the active air inlet grille are different, so as to obtain the target heat dissipation requirements of the whole vehicle thermal management system.
104. And calculating the heat dissipation capacity required by the system according to the target heat dissipation requirement.
In practice, the calculation of the heat dissipation capacity required by the system mainly considers the heat dissipated by the radiator after the comprehensive utilization of the system heat. The radiator demand heat dissipation capacity calculation method under different thermal management system demands is exemplified as follows:
example 1, when only the electric drive dissipates heat: system demand heat dissipation = motor heat dissipation + electronically controlled heat dissipation + DCDC heat dissipation.
Example 2, when the system has one of battery cooling, passenger cabin & battery dual cooling: system demand heat sink = motor heat sink + electronic control heat sink + DCDC heat sink + LCC heat sink.
Example 3, when the system has one of battery heating, passenger compartment & battery dual heating: system demand heat sink = motor heat sink + electronic control heat sink + DCDC heat sink-refrigerator (i.e. belller) heat exchange power.
Example 4, when the battery temperature is high without a request for heating and the passenger compartment requests heating: system demand heat dissipation = motor heat dissipation + electrical control heat dissipation + battery heat dissipation + DCDC heat dissipation-chirler heat exchange power.
Example 5 when a battery has a cooling request and a passenger compartment has no thermal management request in a low temperature environment: system demand heat sink = motor heat sink + electrical control heat sink + DCDC heat sink + battery heat sink.
Example 6, when the battery pack request heating & passenger compartment no thermal management request & electric drive system inlet coolant temperature value is above the battery inlet coolant target temperature: system demand heat dissipation = motor heat dissipation + electronically controlled heat dissipation + DCDC heat dissipation-battery heat absorption.
105. And controlling the active air inlet grille to reach the target opening according to the system required heat dissipation capacity and the current speed of the vehicle.
According to the embodiment of the application, the control opening degree of the active air inlet grille is comprehensively controlled aiming at the whole vehicle thermal management system in consideration of the system required heat dissipation capacity and the current vehicle speed, so that the application is suitable for the heat dissipation requirement of the whole vehicle thermal management system.
Above, the embodiment of the application provides a control method for an active air intake grille of a vehicle, which determines which components have heat dissipation requirements by monitoring working state parameters of each component in a whole vehicle thermal management system in a vehicle driving process, so as to combine the heat dissipation requirements as target heat dissipation requirements of the whole vehicle thermal management system (namely, the comprehensive heat dissipation requirements of the whole vehicle thermal management system), calculate the heat dissipation capacity required by the system according to the target heat dissipation requirements, and control the active air intake grille to automatically and dynamically reach a target opening according to the heat dissipation capacity required by the system and the current speed of the vehicle. It should be mentioned in the prior art that the heat dissipation components involved in the heat dissipation work under different pressure or temperature ranges are not all the same, and the embodiment of the application can obtain the comprehensive heat dissipation requirement of the whole vehicle thermal management system by summarizing the components with the heat dissipation requirement, so that the opening degree for controlling the dynamic change of the active air inlet grille through comprehensive consideration can more meet the heat dissipation requirement of the whole vehicle thermal management system, and a more optimized solution for controlling the active air inlet grille is provided.
In the following, for more detailed explanation, another method for controlling an active grille of a vehicle is further provided in this embodiment of the present application, as shown in fig. 2, and the following specific steps are provided in this embodiment of the present application:
201. monitoring working state parameters of each component in the whole vehicle thermal management system in the vehicle driving process;
202. and determining the heat dissipation requirement corresponding to the component according to the working state parameters of each component.
203. And combining the heat dissipation requirements corresponding to all the components to serve as target heat dissipation requirements corresponding to the whole vehicle heat management system.
204. And calculating the heat dissipation capacity required by the system according to the target heat dissipation requirement.
In the embodiment of the present application, the explanation of the steps 201 to 204 is referred to steps 101 to 104, and is not repeated here.
205. And acquiring the water inlet temperature and the air inlet temperature of the radiator to calculate the heat dissipation temperature difference of the radiator.
206. And calculating the heat radiation thermal resistance of the radiator according to the heat radiation capacity and the heat radiation temperature difference required by the system.
In the embodiment of the present application, the active intake grille opening is calculated by using an algorithm of dividing the system heat dissipation capacity by the heat dissipation temperature difference, wherein, in practice, the calculation of the system required heat dissipation capacity mainly considers the heat dissipated by the radiator after the comprehensive utilization of the system heat, so the following method may be adopted to obtain the system required heat dissipation capacity:
for the radiator heat dissipation process:
wherein: r is R b The heat conduction resistance of the wall surface of the heat exchanger is related to the heat conduction coefficient and the heat exchange area of the heat exchanger and changes along with the type selection of the heat exchanger; a is that i 、A o The heat exchange area of the water side and the wind side of the heat exchanger is changed along with the type selection of the radiator; h is a i The water side convection heat exchange coefficient of the heat exchanger is related to the flow rate of the cooling liquid; h is a o The heat exchanger wind side convection coefficient is related to the air intake, which is related to the vehicle speed and the AGS opening.
207. And calculating the basic opening of the active air inlet grille according to the heat radiation resistance and the current speed of the vehicle.
In the embodiment of the present application, as shown in the formula used for obtaining the heat dissipation capacity of the system in step 206, the active air intake grille is mainly obtained by MAP calibration consisting of thermal resistance and vehicle speed.
208. And controlling the active air inlet grille to reach the target opening according to the corrected basic opening of the active air inlet grille.
For the basic opening degree of the active air intake grille obtained in step 207, two correction schemes are provided in the embodiment of the present application, including: the correction scheme is that the actual water temperature at the inlet of the electric drive system is used for correcting the basic opening of the active air inlet grille; another correction scheme is to correct the active grille shutter opening by using the radiator bypass valve opening. The two can be used alternatively or in combination.
In order to support implementation of the method in steps 201-208, the embodiment of the application may pre-build a vehicle state control module, an air conditioner controller module and a control logic calculation module, so as to implement the active air intake grille control method by utilizing cooperation of the three modules.
Example 1: the vehicle speed, the motor temperature, the MCU temperature, the DCDC/OBC temperature, the battery temperature, the over-temperature state of the electric drive system, the over-temperature state of the battery and the thermal runaway state of the battery can be monitored and fed back in real time by using the vehicle state controller.
The air conditioner controller can monitor and feed back the cooling liquid flow, cooling liquid temperature, high pressure, low pressure, compressor rotation speed, radiator air inlet temperature, radiator water inlet temperature, electric drive inlet cooling liquid temperature, radiator bypass valve opening, system heating requirement and thermal management system fault state in real time.
The control logic calculation module can be used for realizing the calculation of related parameters according to the temperature, pressure, flow and the like acquired in real time.
In order to more clearly show the flow of the control method of the active air intake grille implemented in example 1, the embodiment of the present application further provides a method operation flowchart as shown in fig. 3.
It should be noted that, as shown in fig. 3, as an active air intake grille control scheme in a driving process, as a parallel scheme, the embodiment of the present application may further perform a judgment according to the obtained current vehicle speed of the vehicle, that is, if the vehicle speed is close to 0 or smaller, the vehicle parking state may be approximately considered, and the control scheme of adding the active air intake grille in the vehicle parking state is as follows: and if the inlet temperature of the motor is higher than the ambient temperature and the system is in a heating mode, controlling the active air inlet grille to be fully closed.
And no matter for the running state of the vehicle or the parking state of the vehicle, the auxiliary scheme for controlling the active air inlet grille in the whole course is added in the embodiment of the application: and when the failure of the whole vehicle thermal management system, the over-temperature of the electric drive system, the over-temperature of the battery and the thermal runaway of the battery are detected, controlling the active air inlet grille to the full-open position.
As an implementation of the methods shown in fig. 1 and fig. 2, the embodiment of the application provides a control device for an active air intake grille of a vehicle. The embodiment of the device corresponds to the embodiment of the method, and for convenience of reading, details of the embodiment of the method are not repeated one by one, but it should be clear that the device in the embodiment can correspondingly realize all the details of the embodiment of the method. The device is applied to the heat dissipation demand that satisfies whole car thermal management system that suits, controls initiative air inlet grille aperture, specifically as shown in fig. 4, and the device includes:
the monitoring unit 31 is used for monitoring the current speed of the vehicle and the working state parameters of each component in the whole vehicle thermal management system in the vehicle driving process;
a determining unit 32, configured to determine a heat dissipation requirement corresponding to the component according to the working state parameters of each component obtained by the monitoring unit 31;
a combination unit 33, configured to combine the heat dissipation requirements corresponding to the components obtained by the determination unit 32, as target heat dissipation requirements corresponding to the whole vehicle thermal management system;
a calculating unit 34, configured to calculate a system demand heat dissipation amount according to the target heat dissipation demand obtained by the combining unit 33;
and a control unit 35, configured to control the active air intake grille to reach a target opening according to the system required heat dissipation capacity obtained by the calculation unit 34 and the current vehicle speed obtained by the monitoring unit 31.
In some variant embodiments, as shown in fig. 5, the control unit 35 comprises:
the calculating module 351 is configured to obtain a water inlet temperature and an air inlet temperature of the radiator, so as to calculate a heat dissipation temperature difference of the radiator;
the calculating module 351 is further configured to calculate a heat dissipation thermal resistance of the radiator according to the system required heat dissipation capacity and the heat dissipation temperature difference;
the calculating module 351 is further configured to calculate a basic opening of the active air intake grille according to the heat dissipation thermal resistance and a current speed of the vehicle;
and a control module 352, configured to control the active air intake grille to reach a target opening according to the basic opening of the active air intake grille obtained by the calculation module 351.
In some modified embodiments, as shown in fig. 5, after the calculating of the basic opening degree of the active intake grille, the control unit 35 further includes:
the correction module 353 is configured to correct the basic opening of the active air intake grille by using the actual water temperature at the inlet of the electric drive system;
the correction module 353 is further configured to correct the active air intake grille basic opening by using a bypass valve opening of the radiator.
In some variant embodiments, as shown in fig. 5, the control unit 35 is also specifically configured to: and when the vehicle is parked, if the inlet temperature of the motor is higher than the ambient temperature and the system is in a heating mode, controlling the active air inlet grille to be fully closed.
In some variant embodiments, as shown in fig. 5, the control unit 35 is also specifically configured to: and when the abnormal parts of the working state parameters exist in the whole vehicle heat management system, controlling the active air inlet grille to the full open position.
In summary, the embodiment of the application provides a method and a device for controlling an active air intake grille of a vehicle, which determine which components have heat dissipation requirements by monitoring working state parameters of each component in a whole vehicle thermal management system in the running process of the vehicle, so as to combine the heat dissipation requirements as target heat dissipation requirements of the whole vehicle thermal management system (namely, the heat dissipation requirements are comprehensive heat dissipation requirements of the whole vehicle thermal management system), calculate the heat dissipation capacity required by the system according to the target heat dissipation requirements, calculate the heat dissipation resistance according to the heat dissipation capacity required by the system and the heat dissipation temperature difference, calculate the basic opening of the active air intake grille by the heat dissipation damping and the current vehicle speed of the vehicle, and correct the basic opening according to the heat dissipation damping and the current vehicle speed, thereby obtaining the control opening of the active air intake grille which is comprehensively suitable for the whole vehicle thermal management system, and controlling the dynamically changed opening of the active air intake grille by comprehensive consideration to more satisfy the heat dissipation requirements of the whole vehicle thermal management system, thereby providing a more optimized solution for controlling the active air intake grille.
The control device of the active air inlet grille of the vehicle comprises a processor and a memory, wherein the monitoring unit, the determining unit, the combining unit, the calculating unit, the control unit and the like are all stored in the memory as program units, and the processor executes the program units stored in the memory to realize corresponding functions.
The processor includes a kernel, and the kernel fetches the corresponding program unit from the memory. The kernel can be provided with one or more than one, and the comprehensive heat dissipation requirement in the whole vehicle heat management system is adapted by adjusting the kernel parameters, so that a more optimized solution for controlling the active air inlet grille is provided.
The embodiment of the application provides a computer readable storage medium, and a computer program is stored on the computer readable storage medium, and when the computer program is executed by a processor, the control method of the active air inlet grille of the vehicle is realized.
The embodiment of the application provides electronic equipment, which comprises: the control method for the active air inlet grille of the vehicle comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor, wherein the computer program is executed by the processor.
Embodiments of the present application also provide a computer program product adapted to perform a program initialized with method steps of calibrating a range extender operating curve as above when executed on a data processing device.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations 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 apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In one typical configuration, the device includes one or more processors (CPUs), memory, and a bus. The device may also include input/output interfaces, network interfaces, and the like.
The memory may include volatile memory, random Access Memory (RAM), and/or nonvolatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM), among other forms in computer readable media, the memory including at least one memory chip. Memory is an example of a computer-readable medium.
Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus 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 apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises an element.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, 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, 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.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.
Claims (10)
1. A method of controlling an active grille shutter for a vehicle, the method comprising:
in the running process of the vehicle, monitoring the current speed of the vehicle and working state parameters of all components in the whole vehicle thermal management system;
determining the heat dissipation requirement corresponding to each component according to the working state parameters of the component;
combining heat dissipation requirements corresponding to the components to serve as target heat dissipation requirements corresponding to the whole vehicle heat management system;
calculating the heat dissipation capacity required by the system according to the target heat dissipation requirement;
and controlling the active air inlet grille to reach a target opening according to the system required heat dissipation capacity and the current speed of the vehicle.
2. The method of claim 1, wherein controlling the active grille shutter to a target opening in accordance with the system demand heat dissipation capacity and the current vehicle speed comprises:
acquiring the water inlet temperature and the air inlet temperature of a radiator to calculate the heat dissipation temperature difference of the radiator;
according to the system required heat dissipation capacity and the heat dissipation temperature difference, calculating heat dissipation thermal resistance of the radiator;
calculating the basic opening of the active air inlet grille according to the heat radiation thermal resistance and the current speed of the vehicle;
and controlling the active air inlet grille to reach a target opening according to the basic opening of the active air inlet grille.
3. The method according to claim 2, characterized in that after the calculation of the base opening degree of the active intake grille, the method further comprises:
correcting the basic opening of the active air inlet grille by utilizing the actual water temperature of an inlet of the electric drive system; and/or the number of the groups of groups,
and correcting the basic opening of the active air inlet grille by utilizing the opening of the bypass valve of the radiator.
4. A method according to any one of claims 1 to 3, further comprising:
and when the vehicle is parked, if the inlet temperature of the motor is higher than the ambient temperature and the system is in a heating mode, controlling the active air inlet grille to be fully closed.
5. A method according to any one of claim 1 to 3, wherein,
and when the abnormal parts of the working state parameters exist in the whole vehicle heat management system, controlling the active air inlet grille to the full open position.
6. A control device for an active grille shutter of a vehicle, the device comprising:
the monitoring unit is used for monitoring the current speed of the vehicle and working state parameters of all parts in the whole vehicle thermal management system in the vehicle driving process;
the determining unit is used for determining the heat dissipation requirement corresponding to each component according to the working state parameters of each component obtained by the monitoring unit;
the combination unit is used for combining the heat dissipation requirements corresponding to the components obtained by the determination unit and serving as target heat dissipation requirements corresponding to the whole vehicle heat management system;
the calculating unit is used for calculating the heat dissipation capacity required by the system according to the target heat dissipation requirement obtained by the combining unit;
and the control unit is used for controlling the active air inlet grille to achieve the target opening according to the system required heat dissipation capacity obtained by the calculation unit and the current vehicle speed obtained by the monitoring unit.
7. The apparatus of claim 6, wherein the control unit comprises:
the calculating module is used for obtaining the water inlet temperature and the air inlet temperature of the radiator so as to calculate the heat dissipation temperature difference of the radiator;
the calculation module is also used for calculating the heat dissipation thermal resistance of the radiator according to the heat dissipation capacity required by the system and the heat dissipation temperature difference;
the calculation module is also used for calculating the basic opening of the active air inlet grille according to the heat radiation thermal resistance and the current speed of the vehicle;
and the control module is used for controlling the active air inlet grille to reach the target opening according to the basic opening of the active air inlet grille obtained by the calculation module.
8. The apparatus according to claim 7, wherein after the calculation of the basic opening degree of the active intake grille, the control unit further includes:
the correction module is used for correcting the basic opening of the active air inlet grille by utilizing the actual water temperature of the inlet of the electric drive system;
the correction module is also used for correcting the basic opening of the active air inlet grille by utilizing the opening of the bypass valve of the radiator.
9. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when executed by a processor, implements the control method of the vehicle active grille of any one of claims 1 to 5.
10. An electronic device, comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor implements the method of controlling an active grille of a vehicle according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311145903.4A CN117341461A (en) | 2023-09-06 | 2023-09-06 | Control method and device for active air inlet grille of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311145903.4A CN117341461A (en) | 2023-09-06 | 2023-09-06 | Control method and device for active air inlet grille of vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117341461A true CN117341461A (en) | 2024-01-05 |
Family
ID=89360259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311145903.4A Pending CN117341461A (en) | 2023-09-06 | 2023-09-06 | Control method and device for active air inlet grille of vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117341461A (en) |
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2023
- 2023-09-06 CN CN202311145903.4A patent/CN117341461A/en active Pending
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