Air intake grille control method, device, equipment and storage medium

Abstract

The present application discloses an air intake grille control method, device, equipment and storage medium, which relates to the field of vehicle technology. The air intake grille control method includes: when the motor initialization state is the initialization completion state, obtaining the current heat pump mode; when the current heat pump mode is the electric drive heat dissipation mode, obtaining the current heat dissipation demand; when the current heat dissipation demand is that no heat dissipation demand is required, determining the current temperature demand according to the current battery data and the passenger compartment data; and controlling the air intake grille according to the current temperature demand. By determining the current heat pump mode after the initialization is completed, and judging whether there is a heating and cooling demand when the electric drive needs to dissipate heat, and then determining the opening of the corresponding air intake grille according to different heating and cooling demands, the air intake grille is precisely controlled, and the reasonable and effective control of the grille opening is achieved, which can reduce the wind resistance of the whole vehicle while meeting the thermal management performance requirements.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to an air intake grille control method, device, equipment and storage medium. Background Art

[0002] This year, with the increasing popularity of pure electric vehicles at home and abroad, various technologies have gradually matured, consumers have gradually accepted pure electric vehicles, and sales have increased significantly. However, with the increase in users, the use areas have gradually spread to tropical, temperate, cold and extremely cold regions, and many problems caused by various climate environments in the use process have gradually been exposed. The serious attenuation of driving range in high and low temperature environments and the greatly extended fast charging time are two of the many pain points of current pure electric vehicle users. In order to solve the thermal management pain point problem, heat pumps are gradually introduced as efficient heat sources in low temperature environments, and the motor / electronic control temperature control, power battery temperature control, and passenger compartment air conditioning are comprehensively considered to build a more efficient and energy-saving vehicle thermal management system. The active control of the air intake grille is indispensable in the heat pump system. Therefore, how to reduce wind resistance and increase driving range by accurately controlling the active air intake grille has become an urgent problem to be solved. Summary of the invention

[0003] The main purpose of this application is to provide an air intake grille control method, device, equipment and storage medium, aiming to solve the technical problem of how to reduce wind resistance and increase cruising range by accurately controlling the active air intake grille.

[0004] To achieve the above objectives, the present application proposes an air intake grille control method, the air intake grille control method comprising:

[0005] When the motor initialization state is the initialization completion state, obtain the current heat pump mode;

[0006] When the current heat pump mode is the electric drive heat dissipation mode, obtaining a current heat dissipation demand;

[0007] When the current heat dissipation requirement is that no heat dissipation requirement is required, determining a current temperature requirement according to current battery data and passenger compartment data;

[0008] The air intake grille is controlled according to the current temperature requirement.

[0009] In one embodiment, the step of controlling the air intake grille according to the current temperature requirement includes:

[0010] When the current temperature requirement is a cooling or heating requirement, the air intake grille is controlled according to at least one of the current exhaust pressure, the current water temperature, the current vehicle speed, the first opening coefficient, and the second opening coefficient;

[0011] When the current temperature demand is that there is no cooling or heating demand, the air intake grille is controlled according to the waste heat utilization demand.

[0012] In one embodiment, when the current temperature requirement is that there is no cooling or heating requirement, the step of controlling the air intake grille according to the waste heat utilization requirement includes:

[0013] When the current temperature requirement is that there is no cooling or heating requirement and the waste heat utilization requirement is that there is a waste heat utilization requirement, controlling the air intake grille to be closed;

[0014] When the current temperature requirement is that there is no cooling or heating requirement and the waste heat utilization requirement is that there is no waste heat utilization requirement, the air intake grille is controlled according to the current vehicle gear position and / or the current vehicle speed.

[0015] In one embodiment, when the current temperature requirement is that there is no cooling or heating requirement and the waste heat utilization requirement is that there is no waste heat utilization requirement, the step of controlling the air intake grille according to the current vehicle gear position and / or the current vehicle speed includes:

[0016] When the current temperature requirement is that there is no cooling or heating requirement, the waste heat utilization requirement is that there is no waste heat utilization requirement, and the current vehicle gear position is different from the target vehicle gear position, controlling the air intake grille according to the current vehicle speed;

[0017] When the current temperature requirement is that there is no cooling or heating requirement, the waste heat utilization requirement is that there is no waste heat utilization requirement, and the current vehicle gear is the same as the target vehicle gear, the air intake grille is controlled to be closed.

[0018] In one embodiment, when the current heat pump mode is the electric drive heat dissipation mode, after the step of obtaining the current heat dissipation demand, the method further includes:

[0019] When the current heat dissipation demand is a heat dissipation demand, obtaining current battery data, passenger compartment data, current vehicle gear position, and electric drive water temperature;

[0020] The air intake grille is controlled according to at least one of the current battery data, the passenger compartment data, the current vehicle gear position, and the electric drive water temperature.

[0021] In one embodiment, when the motor initialization state is the initialization completion state, before the step of obtaining the current heat pump mode, the method further includes:

[0022] When it is detected that the stall fault flag is in the set state, initialization is performed according to the stall fault torque to determine the motor initialization state;

[0023] When it is detected that the overtravel fault flag is in a set state, initialization is performed according to the overtravel fault torque to determine the motor initialization state.

[0024] In one embodiment, the air intake grille control method further includes:

[0025] When it is detected that the high voltage flag is in the set state, the current fan state is obtained;

[0026] When the current fan state is the fan shutdown state, the air intake grille is powered off according to the current control demand and the preset delay time.

[0027] In addition, to achieve the above-mentioned purpose, the present application also proposes an air intake grille control device, the air intake grille control device comprising:

[0028] An acquisition module, used for acquiring the current heat pump mode when the motor initialization state is the initialization completion state;

[0029] A processing module, used for obtaining a current heat dissipation demand when the current heat pump mode is an electric drive heat dissipation mode;

[0030] The processing module is further used to determine the current temperature requirement according to the current battery data and the passenger compartment data when the current heat dissipation requirement is that no heat dissipation requirement is required;

[0031] A control module is used to control the air intake grille according to the current temperature requirement.

[0032] In addition, to achieve the above-mentioned purpose, the present application also proposes an air intake grille control device, which includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, and the computer program is configured to implement the steps of the air intake grille control method as described above.

[0033] In addition, to achieve the above-mentioned purpose, the present application also proposes a storage medium, which is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by the processor, the steps of the air intake grille control method described above are implemented.

[0034] In addition, to achieve the above-mentioned purpose, the present application also provides a computer program product, which includes a computer program, and when the computer program is executed by a processor, the steps of the air intake grille control method as described above are implemented.

[0035] This application obtains the current heat pump mode when the motor initialization state is the initialization completion state; obtains the current heat dissipation demand when the current heat pump mode is the electric drive heat dissipation mode; determines the current temperature demand based on the current battery data and passenger compartment data when the current heat dissipation demand is no heat dissipation demand; and controls the air intake grille based on the current temperature demand. By determining the current heat pump mode after the initialization is completed, and judging whether there is a heating and cooling demand when the electric drive needs to dissipate heat, and then determining the opening of the corresponding air intake grille according to different heating and cooling demands, precise control of the air intake grille is achieved, and reasonable and effective control of the grille opening is achieved, while reducing the wind resistance of the entire vehicle and meeting the thermal management performance requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0037] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0038] Figure 1 A schematic diagram of a flow chart provided for the first embodiment of the air intake grille control method of the present application;

[0039] Figure 2 A schematic diagram of the system principle provided in Example 1 of the air intake grille control method of the present application;

[0040] Figure 3 A schematic diagram of the initialization process provided in Example 1 of the air intake grille control method of the present application;

[0041] Figure 4 A schematic diagram of a flow chart provided for the second embodiment of the air intake grille control method of the present application;

[0042] Figure 5 This is a schematic diagram of the module structure of the air intake grille control device according to an embodiment of the present application;

[0043] Figure 6 Schematic diagram of the device structure of the hardware operating environment involved in the air intake grille control method in the embodiment of the present application.

[0044] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0045] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0046] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0047] The main solution of the embodiment of the present application is: when the motor initialization state is the initialization completion state, obtain the current heat pump mode; when the current heat pump mode is the electric drive heat dissipation mode, obtain the current heat dissipation demand; when the current heat dissipation demand is that no heat dissipation demand is required, determine the current temperature requirement according to the current battery data and the passenger compartment data; and control the air intake grille according to the current temperature requirement.

[0048] This application obtains the current heat pump mode when the motor initialization state is the initialization completion state; obtains the current heat dissipation demand when the current heat pump mode is the electric drive heat dissipation mode; determines the current temperature demand based on the current battery data and passenger compartment data when the current heat dissipation demand is no heat dissipation demand; and controls the air intake grille based on the current temperature demand. By determining the current heat pump mode after the initialization is completed, and judging whether there is a heating and cooling demand when the electric drive needs to dissipate heat, and then determining the opening of the corresponding air intake grille according to different heating and cooling demands, precise control of the air intake grille is achieved, and reasonable and effective control of the grille opening is achieved, while reducing the wind resistance of the entire vehicle and meeting the thermal management performance requirements.

[0049] It should be noted that the execution subject of this embodiment may be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or an air intake grille control device capable of realizing the above functions, etc. The following takes the air intake grille control device as the execution subject as an example to illustrate this embodiment and the following embodiments.

[0050] Based on this, the embodiment of the present application provides an air intake grille control method, referring to Figure 1 , Figure 1 This is a flow chart of the first embodiment of the air intake grille control method of the present application.

[0051] In this embodiment, the air intake grille control method includes steps S10 to S40:

[0052] Step S10, when the motor initialization state is the initialization completion state, obtaining the current heat pump mode;

[0053] It should be noted that the system schematic diagram corresponding to the control method of the active air intake grille of a pure electric vehicle with a heat pump system in this embodiment is as follows: Figure 2As shown in the figure, the PTC (Positive Temperature Coefficient) heater is a positive temperature coefficient thermistor. The temperature sensor monitors its surface temperature; the LT RAD (Low Temperature Radiator) is used to cool the liquid in the low temperature circuit; DC / DC converter, OBC (Onboard Charger), MCU (Motor Control Unit): these electronic components also need proper cooling to maintain normal operating temperature.

[0054] It is understandable that the current heat pump modes include charging mode, electric drive over-temperature mode, defrost mode and electric drive heat dissipation mode.

[0055] In a specific implementation, before controlling the opening of the active air intake grille, the motor is initialized and fault diagnosed to determine the motor initialization state, and when the motor initialization state is the initialization completion state, it indicates that the opening of the active air intake grille can be accurately controlled at this time, thereby obtaining the current heat pump mode, that is, any one of the charging mode, electric drive over-temperature mode, defrost mode and electric drive heat dissipation mode.

[0056] It should be noted that in the present embodiment, the active air intake grille opening control strategy is to control the grille according to different heat pump modes. Among them, when the current heat pump mode is charging mode, electric drive over-temperature mode or defrost mode, the specific control method of the active air intake grille is: charging state (mode): the air intake grille is fully open, and the charging state has the highest priority; electric drive over-temperature mode: the air intake grille is fully open, and the priority is lower than the charging state; defrost state (mode): the air intake grille is fully closed.

[0057] In a feasible implementation manner, step S10 may include steps A11 to A12:

[0058] Step A11, when it is detected that the stall fault flag is in a set state, initialization is performed according to the stall fault torque to determine the motor initialization state;

[0059] It can be understood that the stall fault torque refers to the torque increased by one gear when a stall fault occurs.

[0060] In a specific implementation, when it is detected that the stall fault flag is in a set state, that is, AGM_Sta_Blockage=1, it indicates that a stall fault occurs in the air intake grille motor, and then the torque is increased by one gear and initialization is performed to determine the motor initialization state.

[0061] Step A12, when it is detected that the overtravel fault flag is in the set state, initialization is performed according to the overtravel fault torque to determine the motor initialization state.

[0062] It can be understood that the over-travel fault torque refers to the torque that is reduced by one gear when the over-travel fault torque occurs.

[0063] In a specific implementation, when it is detected that the overtravel fault flag is in a set state, that is, AGM_Sta_Overtravel=1, it indicates that an overtravel fault occurs in the air intake grille motor, and then the torque is reduced by one gear and initialization is performed to determine the motor initialization state.

[0064] It should be noted that if Figure 3 As shown, in this embodiment, when the air intake grille motor is blocked or has an overtravel fault, the motor controller feedback AGM_Sta_Blockage=1; AGM_Sta_Overtravel=1; when the host detects that the air intake grille feedback status AGM_Sta_Blockage or AGM_Sta_Overtravel is set to 1, the motor needs to be reinitialized, and the motor can be controlled normally again after the motor initialization is successful; when the air intake grille feedbacks a blocking fault, that is, AGM_Sta_Blockage=1, the torque is increased by one gear and initialization is performed; when the air intake grille feedbacks an overtravel fault, that is, AGM_Sta_Overtravel=1, the torque is reduced by one gear and initialization is performed.

[0065] Step S20, when the current heat pump mode is the electric drive heat dissipation mode, obtaining the current heat dissipation demand;

[0066] It can be understood that the electric drive heat dissipation mode includes an electric drive heat dissipation required mode and an electric drive no heat dissipation required mode, and the current heat dissipation demand refers to whether the electric drive has a heat dissipation demand.

[0067] In a specific implementation, when the electric drive requires a heat dissipation mode, that is, there is a need for heat dissipation, and the current heat dissipation demand is a need for heat dissipation; when the electric drive does not require a heat dissipation mode, that is, there is no need for heat dissipation, and the current heat dissipation demand is a need for no heat dissipation.

[0068] In a feasible implementation manner, step S20 may include steps A21 to A22:

[0069] Step A21, when the current heat dissipation demand is a heat dissipation demand, obtaining current battery data, passenger compartment data, current vehicle gear position, and electric drive water temperature;

[0070] It should be noted that the current battery data refers to the data associated with the current battery, such as battery temperature and remaining battery power, etc. The passenger compartment data refers to the passenger compartment temperature data, and the current vehicle gear includes P gear (parking gear), N gear (neutral gear), D gear (drive gear) and R gear (reverse gear), etc.

[0071] In a specific implementation, when the current heat dissipation demand is a heat dissipation demand, in order to accurately control the opening of the active air intake grille, the current battery-related data, the passenger compartment temperature data and the current vehicle gear are collected to determine the opening of the active air intake grille based on the above data.

[0072] Step A22, controlling the air intake grille according to at least one of the current battery data, the passenger compartment data, the current vehicle gear position, and the electric drive water temperature.

[0073] In a specific implementation, whether the electric drive needs heat dissipation: if heat dissipation is required, it is determined whether the battery or the passenger compartment is cooled. If so, the air intake grille is related to the compressor exhaust pressure, the water temperature at the motor water outlet, and the vehicle speed, and the correlation coefficient is in the third state; it is determined whether the battery or the passenger compartment is heated by a heat pump. If so, the air intake grille is related to the compressor exhaust pressure, the water temperature at the motor water outlet, and the vehicle speed, and the correlation coefficient is in the fourth state; if there is no demand for either the battery or the passenger compartment and the vehicle is in N gear and the water temperature of the electric drive circuit is less than a certain value C2 (which can be calibrated, and this calibration threshold is less than the electric drive heat dissipation threshold), the active air intake grille is fully closed; if there is no demand for either the battery or the passenger compartment and the vehicle is not in N gear or the water temperature of the electric drive circuit is greater than a certain value C2 (which can be calibrated, and this calibration threshold is less than the electric drive heat dissipation threshold), the active air intake grille is related to the water temperature at the motor water outlet and the vehicle speed, and the correlation coefficient is in the fifth state, wherein the third state, the fourth state, and the fifth state are correlation coefficients under different scenarios, and their specific data can be set according to actual conditions, and this embodiment does not limit this.

[0074] Step S30, when the current heat dissipation requirement is that no heat dissipation requirement is required, determining the current temperature requirement according to the current battery data and the passenger compartment data;

[0075] It can be understood that the current temperature demand refers to whether there is a demand for heating or cooling.

[0076] In a specific implementation, when the current heat dissipation demand is that no heat dissipation demand is required, it is determined whether there is a need for heating and cooling, and the current battery-related data and the temperature data of the passenger compartment are obtained for analysis. Based on the analysis results, it is determined whether there is a need for heating and cooling, that is, the current temperature demand.

[0077] Step S40: controlling the air intake grille according to the current temperature requirement.

[0078] In a specific implementation, corresponding vehicle data is collected based on whether there is a demand for heating and cooling, and then the opening of the corresponding active air intake grille is determined based on the collected corresponding vehicle data. Finally, the active air intake grille with a heat pump system is controlled based on the determined opening of the active air intake grille.

[0079] In a feasible implementation manner, the air intake grille control method may further include steps S11-S12:

[0080] Step S11, when it is detected that the high voltage flag is in a set state, obtaining the current fan state;

[0081] It can be understood that the current fan state includes a fan shutdown state and a fan working state.

[0082] In a specific implementation, when it is detected that the high-voltage flag is in the set state, it indicates that the active air intake grille needs to be powered off, thereby obtaining the fan shutdown state or the fan working state, that is, the current fan state.

[0083] Step S12, when the current fan state is the fan shutdown state, the air intake grille is powered off according to the current control demand and the preset delay time.

[0084] It can be understood that the current control demand refers to the current demand for controlling the air intake grille, and the preset delay duration refers to the preset delay duration for closing the air intake grille.

[0085] In the specific implementation, the active air intake grille power-off control strategy is: the high voltage disconnection is used as the power-off flag. When the power-off flag is 1 and the fan is shut down, it is closed with a delay according to the current control requirements (the delay time can be calibrated as C1).

[0086] In this embodiment, when the high-voltage flag is detected to be in the set state, the current fan state is obtained; when the current fan state is the fan shutdown state, the air intake grille is powered off according to the current control requirements and the preset delay time. By using the high-voltage disconnection as the power-off flag, when the power-off flag is 1 and the fan is shut down, the power-off is delayed according to the current control requirements, thereby achieving accurate control of the active air intake grille to power off.

[0087] This embodiment obtains the current heat pump mode when the motor initialization state is the initialization completion state; obtains the current heat dissipation demand when the current heat pump mode is the electric drive heat dissipation mode; determines the current temperature demand according to the current battery data and passenger compartment data when the current heat dissipation demand is no heat dissipation demand; and controls the air intake grille according to the current temperature demand. By determining the current heat pump mode after the initialization is completed, and judging whether there is a heating and cooling demand when the electric drive needs to dissipate heat, and then determining the opening of the corresponding air intake grille according to different heating and cooling demands, the air intake grille is precisely controlled, and the reasonable and effective control of the grille opening is achieved, which can reduce the wind resistance of the whole vehicle while meeting the thermal management performance requirements.

[0088] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as those in the above-mentioned embodiment 1 can be referred to the above introduction, and will not be repeated in the following. Figure 4 , step S40 in the air intake grille control method includes steps S41-S42:

[0089] Step S41, when the current temperature requirement is a cooling or heating requirement, the air intake grille is controlled according to at least one of the current exhaust pressure, the current water temperature, the current vehicle speed, the first opening coefficient, and the second opening coefficient;

[0090] It can be understood that the first opening coefficient and the second opening coefficient are the first state and the second state of the correlation coefficient, respectively, wherein the first state and the second state are correlation coefficients under different scenarios, and their specific data can be set according to actual conditions. This embodiment is not limited to this. The current exhaust pressure refers to the compressor exhaust pressure, and the current water temperature refers to the water temperature at the motor outlet.

[0091] In the specific implementation, when the current temperature demand is for cooling and heating, the opening of the corresponding air intake grille is determined according to the compressor exhaust pressure, the water temperature of the motor outlet, the current vehicle speed, the first opening coefficient and the second opening coefficient, and finally the air intake grille is controlled.

[0092] Step S42, when the current temperature demand is that there is no cooling or heating demand, the air intake grille is controlled according to the waste heat utilization demand.

[0093] It can be understood that the waste heat utilization demand refers to whether there is a demand for waste heat utilization.

[0094] In a specific implementation, if waste heat utilization is required, the active air intake grille is fully closed; if waste heat utilization is not required, the active air intake grille is controlled according to the current vehicle gear and speed.

[0095] In a feasible implementation, step S42 may include steps A421-A422:

[0096] Step A421, when the current temperature requirement is that there is no cooling or heating requirement and the waste heat utilization requirement is that there is a waste heat utilization requirement, controlling the air intake grille to be closed;

[0097] It is understandable that when judging whether the electric drive needs to utilize waste heat (including waste heat to supply batteries or waste heat to heat pumps), if waste heat utilization is required, the air intake grille is actively closed.

[0098] Step A422, when the current temperature requirement is that there is no cooling or heating requirement and the waste heat utilization requirement is that there is no waste heat utilization requirement, the air intake grille is controlled according to the current vehicle gear position and / or the current vehicle speed.

[0099] In the specific implementation, if there is no motor waste heat utilization and the whole vehicle is not in P gear or N gear, the active air intake grille is related to the vehicle speed (look up the table), so that the active air intake grille is controlled according to the current vehicle speed; if there is no motor waste heat utilization and the whole vehicle is in P gear or N gear, the active air intake grille is closed.

[0100] In a feasible implementation, step A422 may include steps B4221-B4222:

[0101] Step B4221, when the current temperature requirement is no cooling or heating requirement and the waste heat utilization requirement is no waste heat utilization requirement and the current vehicle gear position is different from the target vehicle gear position, controlling the air intake grille according to the current vehicle speed;

[0102] It can be understood that the target vehicle gear refers to P gear or N gear. When the current temperature demand is that there is no cooling and heating demand and the waste heat utilization demand is that there is no waste heat utilization demand and the current vehicle gear is different from the target vehicle gear, it indicates that the opening of the corresponding air intake grille is determined according to the vehicle driving speed, and then the corresponding air intake grille opening is determined by looking up the table according to the current vehicle driving speed, and finally the air intake grille is controlled.

[0103] Step B4222, when the current temperature requirement is that there is no cooling or heating requirement and the waste heat utilization requirement is that there is no waste heat utilization requirement and the current vehicle gear is the same as the target vehicle gear, control the air intake grille to close.

[0104] In a specific implementation, when the current temperature demand is that there is no cooling or heating demand and the waste heat utilization demand is that there is no waste heat utilization demand and the current vehicle gear is the same as the target vehicle gear, it indicates that the vehicle is in a parking state, and the air intake grille is controlled to be closed.

[0105] It should be noted that in this embodiment, whether the electric drive needs heat dissipation: if no heat dissipation is needed, determine whether the battery or the passenger compartment is cooled. If so, the air intake grille is related to the compressor exhaust pressure, the water temperature at the motor outlet, and the vehicle speed, and the correlation coefficient is in the first state; determine whether the battery or the passenger compartment is heated by a heat pump. If so, the air intake grille is related to the compressor exhaust pressure, the water temperature at the motor outlet, and the vehicle speed, and the correlation coefficient is in the second state; if there is no cooling or heating demand, determine whether the electric drive needs waste heat utilization (including waste heat for the battery or waste heat for the heat pump). If waste heat utilization is needed, the active air intake grille is completely closed; if there is no motor waste heat utilization and the vehicle is not in P gear or N gear, the active air intake grille is related to the vehicle speed (look up the table); if there is no motor waste heat utilization and the vehicle is in P gear or N gear, the active air intake grille is closed.

[0106] This embodiment controls the air intake grille according to at least one of the current exhaust pressure, the current water temperature, the current vehicle speed, the first opening coefficient, and the second opening coefficient when the current temperature requirement is for cooling and heating; and controls the air intake grille according to the waste heat utilization requirement when the current temperature requirement is for no cooling and heating. By reasonably and effectively controlling the grille opening, the wind resistance of the whole vehicle can be reduced while meeting the thermal management performance requirements.

[0107] It should be noted that the above examples are only used to understand the present application and do not constitute a limitation on the air intake grille control method of the present application. More simple transformations based on this technical concept are all within the protection scope of the present application.

[0108] This application also provides an air intake grille control device, please refer to Figure 5 , the air intake grille control device comprises:

[0109] An acquisition module 10, used for acquiring a current heat pump mode when the motor initialization state is an initialization completion state;

[0110] The processing module 20 is used to obtain the current heat dissipation demand when the current heat pump mode is the electric drive heat dissipation mode;

[0111] The processing module 20 is further configured to determine a current temperature requirement according to current battery data and passenger compartment data when the current heat dissipation requirement is that no heat dissipation requirement is required;

[0112] The control module 30 is used to control the air intake grille according to the current temperature requirement.

[0113] Optionally, the control module 30 is further used for:

[0114] When the current temperature requirement is a cooling or heating requirement, the air intake grille is controlled according to at least one of the current exhaust pressure, the current water temperature, the current vehicle speed, the first opening coefficient, and the second opening coefficient;

[0115] When the current temperature demand is that there is no cooling or heating demand, the air intake grille is controlled according to the waste heat utilization demand.

[0116] Optionally, the control module 30 is further used for:

[0117] When the current temperature requirement is that there is no cooling or heating requirement and the waste heat utilization requirement is that there is a waste heat utilization requirement, controlling the air intake grille to be closed;

[0118] When the current temperature requirement is that there is no cooling or heating requirement and the waste heat utilization requirement is that there is no waste heat utilization requirement, the air intake grille is controlled according to the current vehicle gear position and / or the current vehicle speed.

[0119] Optionally, the control module 30 is further used for:

[0120] When the current temperature requirement is that there is no cooling or heating requirement, the waste heat utilization requirement is that there is no waste heat utilization requirement, and the current vehicle gear position is different from the target vehicle gear position, controlling the air intake grille according to the current vehicle speed;

[0121] When the current temperature requirement is that there is no cooling or heating requirement, the waste heat utilization requirement is that there is no waste heat utilization requirement, and the current vehicle gear is the same as the target vehicle gear, the air intake grille is controlled to be closed.

[0122] Optionally, the processing module 20 is further used for:

[0123] When the current heat dissipation demand is a heat dissipation demand, obtaining current battery data, passenger compartment data, current vehicle gear position, and electric drive water temperature;

[0124] The air intake grille is controlled according to at least one of the current battery data, the passenger compartment data, the current vehicle gear position, and the electric drive water temperature.

[0125] Optionally, the acquisition module 10 is further used to:

[0126] When it is detected that the stall fault flag is in the set state, initialization is performed according to the stall fault torque to determine the motor initialization state;

[0127] When it is detected that the overtravel fault flag is in a set state, initialization is performed according to the overtravel fault torque to determine the motor initialization state.

[0128] Optionally, the processing module 20 is further used for:

[0129] When it is detected that the high voltage flag is in the set state, the current fan state is obtained;

[0130] When the current fan state is the fan shutdown state, the air intake grille is powered off according to the current control demand and the preset delay time.

[0131] The air intake grille control device provided by the present application adopts the air intake grille control method in the above embodiment, which can solve the technical problem of how to reduce wind resistance and increase driving range by accurately controlling the active air intake grille. Compared with the prior art, the beneficial effects of the air intake grille control device provided by the present application are the same as the beneficial effects of the air intake grille control method provided by the above embodiment, and the other technical features of the air intake grille control device are the same as the features disclosed in the above embodiment method, which will not be repeated here.

[0132] The present application provides an air intake grille control device, which includes: at least one processor; and a memory that is communicatively connected to the at least one processor; wherein the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the air intake grille control method in the above-mentioned embodiment one.

[0133] Reference below Figure 6 , which shows a schematic diagram of the structure of the air intake grille control device suitable for implementing the embodiment of the present application. The air intake grille control device in the embodiment of the present application may include but is not limited to mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 6 The air intake grille control device shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0134] like Figure 6As shown, the air intake grille control device may include a processing device 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM: Read Only Memory) 1002 or a program loaded from a storage device 1003 to a random access memory (RAM: Random Access Memory) 1004. In RAM1004, various programs and data required for the operation of the air intake grille control device are also stored. The processing device 1001, ROM1002, and RAM1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Generally, the following systems can be connected to the I / O interface 1006: an input device 1007 including, for example, a touch screen, a touch pad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; an output device 1008 including, for example, a liquid crystal display (LCD: Liquid Crystal Display), a speaker, a vibrator, etc.; a storage device 1003 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 1009. The communication device 1009 can allow the grille control device to communicate with other devices wirelessly or by wire to exchange data. Although the figure shows a grille control device with various systems, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems can be implemented or provided instead.

[0135] In particular, according to the embodiments disclosed in the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0136] The air intake grille control device provided by the present application adopts the air intake grille control method in the above embodiment, which can solve the technical problem of how to reduce wind resistance and increase driving range by accurately controlling the active air intake grille. Compared with the prior art, the beneficial effects of the air intake grille control device provided by the present application are the same as the beneficial effects of the air intake grille control method provided by the above embodiment, and the other technical features of the air intake grille control device are the same as the features disclosed in the method of the previous embodiment, which will not be repeated here.

[0137] It should be understood that the various parts disclosed in this application can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0138] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0139] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, computer programs) stored thereon, the computer-readable program instructions being used to execute the air intake grille control method in the above-mentioned embodiment.

[0140] The computer-readable storage medium provided in the present application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM: Random Access Memory), a read-only memory (ROM: Read Only Memory), an erasable programmable read-only memory (EPROM: Erasable Programmable Read Only Memory or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM: CD-Read Only Memory), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program, which may be used by or in combination with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency: Radio Frequency), etc., or any suitable combination of the above.

[0141] The computer-readable storage medium may be included in the air intake grille control device; or may exist independently without being assembled into the air intake grille control device.

[0142] The above-mentioned computer-readable storage medium carries one or more programs. When the above-mentioned one or more programs are executed by the air intake grille control device, the air intake grille control device: when the motor initialization state is the initialization completion state, obtains the current heat pump mode; when the current heat pump mode is the electric drive heat dissipation mode, obtains the current heat dissipation demand; when the current heat dissipation demand is that no heat dissipation demand is required, determines the current temperature demand according to the current battery data and the passenger compartment data; and controls the air intake grille according to the current temperature demand.

[0143] Computer program code for performing the operations of the present application may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0144] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0145] The modules involved in the embodiments described in this application may be implemented by software or hardware, wherein the name of the module does not constitute a limitation on the unit itself in some cases.

[0146] The readable storage medium provided in this application is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the above-mentioned air intake grille control method, and can solve the technical problem of how to reduce wind resistance and increase driving range by accurately controlling the active air intake grille. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as the beneficial effects of the air intake grille control method provided in the above-mentioned embodiment, and will not be elaborated here.

[0147] The present application also provides a computer program product, including a computer program, which implements the steps of the above-mentioned air intake grille control method when executed by a processor.

[0148] The computer program product provided in this application can solve the technical problem of how to reduce wind resistance and increase driving range by accurately controlling the active air intake grille. Compared with the prior art, the beneficial effects of the computer program product provided in this application are the same as the beneficial effects of the air intake grille control method provided in the above embodiment, which will not be elaborated here.

[0149] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A method for controlling an air intake grille, characterized in that: The air intake grille control method comprises: When the motor initialization state is the initialization completion state, obtain the current heat pump mode; When the current heat pump mode is the electric drive heat dissipation mode, obtaining a current heat dissipation demand; When the current heat dissipation requirement is that no heat dissipation requirement is required, determining a current temperature requirement according to current battery data and passenger compartment data; controlling the air intake grille according to the current temperature requirement; Wherein, the step of controlling the air intake grille according to the current temperature requirement includes: When the current temperature demand is a cooling or heating demand, the air intake grille is controlled according to the current exhaust pressure, the current water temperature, the current vehicle speed, and the opening coefficient, the current exhaust pressure is the compressor exhaust pressure, the current water temperature is the water temperature at the motor outlet, and the opening coefficient is the first opening coefficient or the second opening coefficient, the first opening coefficient is the coefficient in the cooling scenario, and the second opening coefficient is the coefficient in the heating scenario; When the current temperature demand is that there is no cooling or heating demand, the air intake grille is controlled according to the waste heat utilization demand.

2. The method according to claim 1, characterized in that The step of controlling the air intake grille according to the waste heat utilization demand when the current temperature demand is that there is no cooling or heating demand includes: When the current temperature requirement is that there is no cooling or heating requirement and the waste heat utilization requirement is that there is a waste heat utilization requirement, controlling the air intake grille to be closed; When the current temperature requirement is that there is no cooling or heating requirement and the waste heat utilization requirement is that there is no waste heat utilization requirement, the air intake grille is controlled according to the current vehicle gear position and / or the current vehicle speed.

3. The method according to claim 2, characterized in that The step of controlling the air intake grille according to the current vehicle gear position and / or the current vehicle speed when the current temperature requirement is that there is no cooling or heating requirement and the waste heat utilization requirement is that there is no waste heat utilization requirement includes: When the current temperature requirement is that there is no cooling or heating requirement and the waste heat utilization requirement is that there is no waste heat utilization requirement and the current vehicle gear is different from the target vehicle gear, the air intake grille is controlled according to the current vehicle speed, and the target vehicle gear is P gear or N gear; When the current temperature requirement is that there is no cooling or heating requirement, the waste heat utilization requirement is that there is no waste heat utilization requirement, and the current vehicle gear is the same as the target vehicle gear, the air intake grille is controlled to be closed.

4. The method according to claim 1, characterized in that When the current heat pump mode is the electric drive heat dissipation mode, after the step of obtaining the current heat dissipation demand, the method further includes: When the current heat dissipation demand is a heat dissipation demand, obtaining current battery data, passenger compartment data, current vehicle gear position, and electric drive water temperature; The air intake grille is controlled according to the current battery data, the passenger compartment data, the current vehicle gear position and the electric drive water temperature.

5. The method according to claim 1, characterized in that Before the step of obtaining the current heat pump mode when the motor initialization state is the initialization completion state, the step further includes: When it is detected that the stall fault flag is in the set state, initialization is performed according to the stall fault torque to determine the motor initialization state; When it is detected that the overtravel fault flag is in a set state, initialization is performed according to the overtravel fault torque to determine the motor initialization state.

6. The method according to claim 1, characterized in that The air intake grille control method further includes: When it is detected that the high voltage flag is in the set state, the current fan state is obtained; When the current fan state is the fan shutdown state, the air intake grille is powered off according to the current control demand and the preset delay time.

7. An air intake grille control device, characterized in that: The device comprises: An acquisition module, used for acquiring the current heat pump mode when the motor initialization state is the initialization completion state; A processing module, used for obtaining a current heat dissipation demand when the current heat pump mode is an electric drive heat dissipation mode; The processing module is further used to determine the current temperature requirement according to the current battery data and the passenger compartment data when the current heat dissipation requirement is that no heat dissipation requirement is required; A control module, used for controlling the air intake grille according to the current temperature requirement; The control module is further configured to control the air intake grille according to the current exhaust pressure, the current water temperature, the current vehicle speed and the opening coefficient when the current temperature demand is a cooling or heating demand, the current exhaust pressure being the compressor exhaust pressure, the current water temperature being the water temperature at the motor outlet, the opening coefficient being the first opening coefficient or the second opening coefficient, the first opening coefficient being the coefficient in the cooling scenario, and the second opening coefficient being the coefficient in the heating scenario; When the current temperature demand is that there is no cooling or heating demand, the air intake grille is controlled according to the waste heat utilization demand.

8. An air intake grille control device, characterized in that: The device comprises: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the air intake grille control method according to any one of claims 1 to 6.

9. A storage medium, characterized in that: The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the air intake grille control method according to any one of claims 1 to 6 are implemented.

Images