Terminal on-off new energy vehicle heat pump air conditioner fan multi-mode control method and system

Abstract

The invention relates to a terminal on-off new energy vehicle heat pump air conditioner fan multi-mode control method and system, and relates to the field of energy utilization technology.The method comprises the steps that an air deflector image is obtained in response to an air blowing signal; determining shielding information based on the air deflector image; if the shielding information exists, disassembling the shielding information to obtain a shielding area; calculating a single board shielding area according to the shielding area and a preset single board area; if the single board shielding area reaches a preset low-efficiency area, defining the single board shielding area as a low-efficiency single board area; determining a corresponding motor number based on the low-efficiency single board area; and controlling the motor corresponding to the motor number to be closed. The device has the effects of efficiently saving energy and improving the energy utilization rate.

Description

Technical Field

[0001] This invention relates to the field of energy utilization technology, and in particular to a multi-mode control method and system for a heat pump air conditioner fan in a new energy vehicle with terminal on / off switching. Background Technology

[0002] In the field of new energy vehicles, heat pump air conditioning systems are core components that ensure driving comfort and energy economy. As the core of airflow drive for heat pump air conditioning, the operating status of the fan directly determines the cooling and heating efficiency, energy consumption level and operational reliability of the air conditioning system.

[0003] Currently, mainstream heat pump air conditioning fan control solutions for new energy vehicles mostly adopt single-speed or simple graded speed control modes, using basic power and control terminals to achieve fan start / stop and fixed-speed adjustment. However, as range anxiety in new energy vehicles becomes increasingly prominent, and the demands of the in-vehicle environment for adapting air conditioning systems to multiple operating conditions continue to rise—covering diverse scenarios such as low-temperature heating, high-temperature cooling, defrosting and defogging, dust cleaning, and fault protection—precise and multi-mode fan control has become a core direction for industry technological upgrades. By developing differentiated fan operation strategies to match different operating conditions, a dynamic balance between "maximum efficiency" and "minimum energy consumption" can be achieved, while reducing the risk of fan failures caused by dust accumulation, stalling, and other issues.

[0004] Regarding the aforementioned technologies, the existing solutions use basic power terminals and control terminals to start and stop the fan and adjust the fixed speed. When some air outlets are blocked or even completely blocked, the air outlet efficiency of that outlet is 0, and the corresponding fan runs idle, resulting in energy waste. There is still room for improvement. Summary of the Invention

[0005] To avoid the fan running idle and to achieve effective energy recovery and utilization, this invention provides a multi-mode control method and system for the terminal on / off control of the heat pump air conditioner fan in new energy vehicles.

[0006] In a first aspect, the present invention provides a multi-mode control method for a heat pump air conditioner fan in a new energy vehicle with terminal on / off switching, employing the following technical solution: A multi-mode control method for a heat pump air conditioner fan in a new energy vehicle with terminal on / off switching includes: Step 1: In response to the blowing signal, acquire an image of the air guide plate; Step 2: Determine occlusion information based on the air guide plate image; Step 3: If occlusion information exists, disassemble the occlusion information to obtain the occluded area; Step 4: Calculate the shading area of ​​the single board based on the shading area and the preset single board area; Step 5: If the area obstructed by a single board reaches the preset inefficient area, define the area obstructed by the single board as an inefficient single board area. Step 6: Determine the corresponding motor number based on the inefficient board area; Step 7: Turn off the motor corresponding to the motor number.

[0007] By adopting the above technical solution, the obstruction information is obtained by analyzing the image of the air guide plate. Based on the obstruction area in the obstruction information, it is determined whether the motor needs to be turned off. This enables the air conditioner of new energy vehicles to flexibly determine whether to turn on or off based on the work done, avoiding the situation where the air outlet is blocked by foreign objects and still works, resulting in energy waste. This improves the effectiveness of energy saving and the efficiency of energy utilization.

[0008] Optionally, methods for controlling the motor corresponding to the motor number to shut down include: Step 70: Obtain the features of the occlusion object based on the occlusion information; Step 71: If the characteristics of the obstruction are consistent with the preset characteristics of the wind board, calculate the tilt angle based on the obstruction area and the area of ​​the single board; Step 72: Find the corresponding suggested parameters based on the tilt angle; Step 73: Adjust the motor according to the recommended parameters without shutting down the motor corresponding to the motor number; Step 74: If the characteristics of the obstruction are inconsistent with the characteristics of the wind vane, shut down the motor corresponding to the motor number.

[0009] By adopting the above technical solution, and by distinguishing whether the characteristics of the obstruction are characteristics of the air deflector itself, a strategy of adjusting or shutting down the motor parameters can be selected in a targeted manner to avoid accidentally shutting down the motor and affecting the normal air blowing of the air conditioner, thereby improving the energy utilization rate and operational reliability of the heat pump air conditioner fan in new energy vehicles.

[0010] Optionally, if the characteristics of the obstruction do not match the characteristics of the wind vane, the method for shutting down the motor corresponding to the motor number includes: Step 740: Determine the corresponding air guide plate number based on the obstructed area; Step 741: Calculate and adjust the angle based on the area obstructed by the single panel; Step 742: Control the air guide plate corresponding to the number of the air guide plate to adjust according to the corresponding adjustment angle to obtain the updated angle; Step 743: Reacquire the wind deflector image based on the updated angle to obtain occlusion information; Step 744: If occlusion information is not available, recalculate the tilt angle to obtain suggested parameters and adjust them; Step 745: If the occlusion information exists, control the motor corresponding to the motor number to turn off.

[0011] By adopting the above technical solution, a progressive control logic is used to first adjust the angle of the air guide plate and then verify the occlusion status. The angle is calculated and adjusted based on the occlusion area of ​​the single plate and the air guide plate is driven to reset. Then, the image is re-acquired to verify the occlusion status, which avoids the motor being turned off due to the deviation of the position of the foreign object blocking the air conditioner. This improves the accuracy and energy saving of the heat pump air conditioner fan control in new energy vehicles.

[0012] Optional, also includes: Step 746: After controlling the air guide plate corresponding to the number of the air guide plate to adjust according to the corresponding adjustment angle, accumulate the time to obtain the rotation time of the air guide plate; Step 747: If the rotation time of the air guide plate falls within the preset angle verification time range, obtain the manual adjustment angle; Step 748: Obtain the hand-operated image based on the hand-operated angle; Step 749: Obtain occlusion information of the hand-operated image; Step 750: If the manual obstruction information exists and is consistent with the obstruction information, control the motor corresponding to the motor number to turn off.

[0013] By adopting the above technical solution, and through the dual verification logic of timing verification after air guide plate adjustment and secondary verification of manual angle image, the system can accurately distinguish between non-human-caused occlusion and reasonable occlusion caused by user manual adjustment of the air guide plate. This avoids misjudging user-initiated air guide plate adjustments as invalid occlusion and causing the system to shut down, ensuring a user-friendly experience for air conditioning users and further improving the energy efficiency and reliability of heat pump air conditioners in new energy vehicles.

[0014] Optionally, it also includes a method for not controlling the motor corresponding to the motor number to shut down, the method including: Step 76: Obtain the air guide plate number based on the obstructed area; Step 77: Determine the corresponding recovery device number and abnormal fan number based on the air guide plate number; Step 78: Obtain an energy recovery plan based on the recycling device number; Step 79: Control the energy recovery device corresponding to the recovery device number to execute the energy recovery plan to obtain recovered energy.

[0015] By adopting the above technical solution, and by locking the corresponding air guide plate number of the blocked area, matching the associated recovery device with the abnormal fan number in a directional linkage strategy, the energy generated by the abnormal fan operation can be recovered and reused, avoiding the impact of motor shutdown on the air conditioning blowing function, realizing the secondary utilization of energy under invalid working conditions, and improving the comprehensive energy utilization rate and operational flexibility of the heat pump air conditioner of new energy vehicles.

[0016] Optionally, methods for extracting occlusion information to obtain the occlusion area include: Step 80: Obtain foreign object information based on the occlusion information and the preset foreign object characteristics; Step 81: Obtain the foreign object parameters based on the foreign object information and find the corresponding standard parameters for the foreign object; Step 82: If the foreign object parameters are consistent with the foreign object standard parameters, obtain the foreign object area based on the foreign object information and regard the foreign object area as the occlusion area; Step 83: If the foreign object parameters are inconsistent with the foreign object standard parameters, the foreign object area will not be regarded as an obstruction area.

[0017] By adopting the above technical solution, the occlusion information is decomposed through a two-layer judgment logic of foreign object feature comparison and standard parameter verification. Only the area that matches the standard parameters of the foreign object is identified as the occlusion area, eliminating misjudgments caused by non-standard foreign objects or interference factors, avoiding motor malfunction due to invalid judgment, ensuring the reliability of the heat pump air conditioning fan control strategy of new energy vehicles, and improving the accuracy of occlusion area identification.

[0018] Optionally, the method for controlling the energy recovery device corresponding to the recovery device number to execute the energy recovery scheme includes: Step 790: Disassemble the recycling device number to obtain the wind power device number and the thermal power device number; Step 791: Obtain the required temperature, device temperature, and inlet air temperature; Step 792: Obtain the recovery temperature range based on the required temperature and the device temperature; Step 793: If the inlet air temperature falls within the recovery temperature range, determine the wind energy recovery plan based on the wind energy device number and execute it; Step 794: If the inlet air temperature does not fall within the recovery temperature range, determine the heat recovery plan according to the heat energy device number and execute it.

[0019] By adopting the above technical solution, the wind energy and heat energy devices can be independently scheduled by splitting the number of the recovery device. The recovery temperature range is defined by combining the demand temperature and the device temperature. Then, the wind energy or heat energy recovery scheme is executed in a targeted manner according to the air inlet temperature, avoiding the limitations of a single recovery mode and improving the comprehensive energy utilization rate and operational adaptability of the heat pump air conditioning system of new energy vehicles.

[0020] Optionally, it also includes methods for utilizing recovered energy, which include: Step 795: Disassemble and recover energy to obtain recovered heat energy; Step 796: Obtain the high-temperature critical value and the low-temperature critical value based on the recovery temperature range; Step 797: If the inlet air temperature does not fall within the recovery temperature range and is less than the low temperature critical value, determine the heating scheme based on the recovered heat energy and the inlet air temperature and execute it. Step 798: If the inlet air temperature does not fall within the recovery temperature range and is greater than the high temperature critical value, determine and implement a cooling scheme based on the recovered heat energy and the inlet air temperature.

[0021] By adopting the above technical solutions, the heat energy is extracted and recovered through dismantling and recycling. Combined with the high and low temperature critical values ​​defined in the recovery temperature range, heating or cooling schemes are matched in a targeted manner. This achieves the targeted and efficient reuse of recovered energy, avoids energy waste, and improves the energy-saving efficiency and energy recycling rate of heat pump air conditioners in new energy vehicles.

[0022] Optional, also includes: Step 799: Upon receiving a stop blowing signal, obtain the vehicle air temperature; Step 780: Calculate the recovery temperature efficiency based on the vehicle air temperature and the preset vehicle air content; Step 781: If the recovery temperature efficiency is greater than the preset air conversion efficiency, determine the vehicle air recovery plan based on the vehicle air temperature and execute it. Step 782: If the recovery temperature efficiency is less than the air conversion efficiency, the vehicle air recovery scheme will not be executed.

[0023] By adopting the above technical solution, the vehicle air temperature is obtained and the recovery temperature efficiency is calculated in combination with the vehicle air content. Then, the comparison between the recovery temperature efficiency and the air conversion efficiency is used as the basis for execution to analyze whether to implement the vehicle air recovery scheme, so as to avoid energy and equipment losses caused by inefficient recovery and improve the overall energy utilization efficiency of the system.

[0024] Secondly, the present invention provides a multi-mode control system for a heat pump air conditioning fan in a new energy vehicle with terminal on / off switching, which adopts the following technical solution: A multi-mode control system for a heat pump air conditioning fan in a new energy vehicle, comprising: The acquisition module is used to acquire images of the air guide plate, the rotation time of the air guide plate, the required temperature, the device temperature, the inlet air temperature, and the vehicle air temperature; The memory is used to store the program of the multi-mode control method for the terminal switching of the heat pump air conditioner fan of a new energy vehicle as described above; The processor loads and executes programs from memory.

[0025] By adopting the above technical solution, the acquisition module accurately collects core control parameters such as the image of the air guide plate, various temperatures, and the rotation time of the air guide plate, providing comprehensive data support for multi-mode control. The memory realizes stable storage of the aforementioned multi-mode control method program. The processor drives the coordinated operation of each module by loading and executing the program in the memory, realizing precise and energy-saving control of the heat pump air conditioner fan of new energy vehicles, and improving the system's operational reliability and energy utilization efficiency.

[0026] In summary, the present invention has at least one of the following beneficial technical effects: By acquiring images of the air guide plate and analyzing whether there is any obstruction, the corresponding motor needs to be turned off to save energy based on the obstructed area. This avoids the situation of the motor running idle, making the energy utilization of new energy vehicles more efficient and improving the energy utilization rate. By comparing the obstructions in the image with the features of foreign objects, it is possible to more accurately determine whether the obstructions in the image will block the air outlet or affect the working efficiency of the motor, thus avoiding the problem of blindly identifying obstructions and improving the accuracy and reliability of obstruction identification. Attached Figure Description

[0027] Figure 1 This is a flowchart of a multi-mode control method for a heat pump air conditioner fan in a new energy vehicle, based on an embodiment of this application. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0029] This invention discloses a multi-mode control method for the on / off terminal of a heat pump air conditioner fan in a new energy vehicle.

[0030] Reference Figure 1 A multi-mode control method for the terminal on / off switching of a heat pump air conditioning fan in a new energy vehicle includes: Step 1: In response to the blowing signal, acquire an image of the air guide plate.

[0031] The "air conditioning" signal refers to the signal that the air conditioning in a new energy vehicle needs to start blowing air. The response method here is that the air conditioning system in the new energy vehicle has a start button; pressing it triggers the response.

[0032] An air deflector image refers to a picture of the air deflector taken from inside the air conditioner. This image is obtained by a camera device installed inside the air conditioner of the new energy vehicle, which takes a picture and transmits it to the system. Examples include miniature pinhole infrared cameras and miniature wide-angle CMOS cameras.

[0033] Step 2: Determine occlusion information based on the air guide plate image.

[0034] Obstruction information refers to information about the object blocking the airflow from the air deflector. This information is determined by the fact that different objects have different characteristics. Personnel skilled in the art search for relevant information online and input it into the system. When the system receives an image of the air deflector, it compares the image with these different characteristics to obtain the obstruction information.

[0035] Step 3: If occlusion information exists, disassemble the occlusion information to obtain the occluded area.

[0036] The occlusion region refers to the location and area where an object obstructs the air guide plate. This is achieved by the system using the ORB feature point matching algorithm to precisely align the real-time image with a reference image at the same angle. After comparison, regions present in the reference image, missing in the real-time image, or with significant differences in grayscale and texture are selected as occlusion regions.

[0037] If obstruction information exists, it means that there is an object in front of the air outlet that may affect the air blowing efficiency. Therefore, the obstruction information is disassembled to obtain the obstruction area.

[0038] Step 4: Calculate the shading area of ​​the single board based on the shading area and the preset single board area.

[0039] The single-plate area refers to the area of ​​a single air guide plate. This single-plate area is a fixed value, obtained by those skilled in the art based on the parameters of the automotive air guide plate and input into the system. For example, the large-sized single air guide plate for a general-purpose automotive air vent is approximately 130mm × 72mm, and the small-sized is approximately 85mm × 64mm. The single-plate obstruction area refers to the area of ​​a single air guide plate that is obstructed. The calculation method here is as follows: the system performs binarization processing on the pre-processed real-time image of the air guide plate, sets a grayscale threshold to distinguish the obstructed area from the air guide plate area into different pixel values, then separately counts the total number of pixels in the obstructed area and the total number of pixels in the air guide plate area as indicated by the reference image. Dividing the two gives the pixel percentage of the obstructed area, which is then multiplied by the fixed single-plate area to obtain the single-plate obstruction area.

[0040] Step 5: If the area obscured by a single board reaches the preset inefficient area, define the area obscured by the single board as an inefficient single board area.

[0041] The inefficient region refers to the critical area where wind efficiency is low. An inefficiency value is obtained by researchers in the field through multiple experiments and then input into the system.

[0042] The inefficient single-panel area refers to the area blocked by a deflector plate with low airflow efficiency. Here, it is defined as the area blocked by a single-panel plate that reaches the inefficient zone.

[0043] If the area blocked by a single panel reaches the inefficient area, it means that the area of ​​the air guide plate is blocked, the efficiency of continuing to output air and adjust the temperature is low, and a lot of energy is consumed. Therefore, the area blocked by the single panel is defined as the inefficient single panel area.

[0044] Step 6: Determine the corresponding motor number based on the inefficient single-board area.

[0045] The motor serial number refers to the unique serial number of the motor that controls the operation of the fan in a new energy vehicle. The method of identification here is that different air guide vanes correspond to different motors, which are assigned by professionals in the field based on the motor corresponding to the air guide vane in the new energy vehicle and then entered into the system.

[0046] Step 7: Turn off the motor corresponding to the motor number.

[0047] The system controls the motor to shut off, preventing inefficient air outlets from continuing to emit air and thus saving energy.

[0048] The methods for controlling the motor corresponding to the motor number to shut down include: Step 70: Obtain the features of the occlusion object based on the occlusion information.

[0049] Obstruction features refer to the characteristics of objects that block the air outlet. The method for obtaining these features is that different objects have different characteristics. Experts in this field obtain the characteristics of various objects by searching online and then inputting them into the system to obtain the obstruction features.

[0050] Step 71: If the characteristics of the obstruction are consistent with the preset characteristics of the wind board, calculate the tilt angle based on the obstruction area and the area of ​​the single board.

[0051] The air deflector features refer to the characteristics of the air deflector. These features include the size and color of the air deflector. This information is obtained by professionals in the field who integrate and input the air deflector data from new energy vehicles into the system.

[0052] The tilt angle refers to the angle at which the air guide plate is tilted. The calculation method here involves the system performing geometric fitting based on the air guide plate features and the real-time identified edge contour of the obstructed area. The angle is obtained by calculating the angle between the projection slope of the obstructed area in the image coordinate system and the horizontal baseline of the air guide plate.

[0053] If the characteristics of the obstruction are consistent with those of the air deflector, it means that only the air deflector adjusts the air outlet angle and there is no actual obstruction. Therefore, the tilt angle is calculated based on the obstruction area and the area of ​​the single panel.

[0054] Step 72: Find the corresponding suggested parameters based on the tilt angle.

[0055] Recommended parameters refer to suggested data on the air conditioner's blowing power. These parameters include blowing temperature and airflow setting. The lookup method involves determining the recommended parameters based on the angle of the air guide vane. Experts in the field have conducted numerous experiments to determine the optimal temperature and airflow setting for each angle, which is then input into the system. When the air guide vane is tilted, the system automatically calculates and outputs the recommended parameters based on that tilt angle.

[0056] Step 73: Adjust the motor according to the recommended parameters without shutting down the motor corresponding to the motor number.

[0057] Adjust the motor to the recommended parameters and blow air. After adjustment, the motor can remain running.

[0058] Step 74: If the characteristics of the obstruction are inconsistent with the characteristics of the wind vane, shut down the motor corresponding to the motor number.

[0059] If the characteristics of the obstruction do not match the characteristics of the air deflector, it indicates that an object is obstructing the air deflector, which may affect the airflow. Therefore, the motor corresponding to the motor number should be turned off.

[0060] Among them, if the characteristics of the obstruction are inconsistent with the characteristics of the wind vane, the method for controlling the motor corresponding to the motor number to shut down includes: Step 740: Determine the corresponding air guide plate number based on the obstructed area.

[0061] The air guide plate number refers to the unique identification number of the air guide plate. The method for determining this number is that each air guide plate is pre-labeled by professionals in the field and entered into the system. When the system detects an obstructed area, it analyzes the location-related information of the air guide plate based on the obstruction area, and then obtains the corresponding air guide plate and its number.

[0062] Step 741: Calculate and adjust the angle based on the area obstructed by the single panel.

[0063] The adjustment angle refers to the angle at which the air guide plate needs to rotate. The calculation method here is as follows: the system locates the largest unobstructed area on the air guide plate and determines its center position based on the position coordinates of the single plate's obstructed area. Then, it retrieves the reference rotation axis coordinates of the air guide plate, calculates the angle between the line connecting the center of the unobstructed area and the rotation axis and the reference line of the air guide plate's current air outlet direction, and uses this angle as the adjustment angle.

[0064] Step 742: Adjust the air guide plate corresponding to the control air guide plate number according to the corresponding adjustment angle to obtain the updated angle.

[0065] The update angle refers to the tilt angle of the air guide plate after rotation. This is obtained by rotating the air guide plate until the rotation angle equals the adjustment angle, and then calculating the update angle using the tilt angle calculation method described in step 71. The calculation method will not be elaborated here.

[0066] Step 743: Reacquire the wind deflector image based on the updated angle to obtain occlusion information.

[0067] The image of the wind deflector is re-acquired based on the updated angle to determine if any obstructions exist, facilitating subsequent steps. The method for acquiring the wind deflector image is the same as described in step 1, and will not be repeated here. The method for obtaining obstruction information is the same as described in step 2, and will not be repeated here.

[0068] Step 744: If the occlusion information is not available, recalculate the tilt angle to obtain suggested parameters and adjust them.

[0069] If the obstruction information is not found, it means that there is no object obstructing the air outlet after the air guide plate rotates. Therefore, the tilt angle is recalculated to obtain the suggested parameters and adjusted.

[0070] Step 745: If the occlusion information exists, control the motor corresponding to the motor number to turn off.

[0071] If the obstruction information is present, it means that even adjusting the air outlet angle cannot prevent the obstruction from being caused by an object. Therefore, the motor corresponding to the motor number is turned off.

[0072] This also includes: Step 746: After controlling the air guide plate corresponding to the number of the air guide plate to be adjusted according to the corresponding adjustment angle, the rotation time of the air guide plate is accumulated.

[0073] The air guide vane rotation time refers to the interval between one adjustment of the air guide vane and its next rotation. This time is obtained by automatically starting a timer after the system has adjusted the air guide vane to the desired angle, accumulating the time until the air guide vane rotates again. This time is then recorded as the air guide vane rotation time.

[0074] Step 747: If the rotation time of the air guide plate falls within the preset angle verification time range, obtain the manual adjustment angle.

[0075] The angle verification time range refers to the time interval used to determine whether the air guide plate has been manually adjusted by the user after the system adjustment. This angle verification time range is set in advance by those skilled in the art. For example, under normal circumstances, the time it takes for the user to feel uncomfortable and adjust the angle of the air guide plate after the system has adjusted the angle may be within 3 minutes. Therefore, the angle verification time range can be set to 0~3 minutes.

[0076] The manual adjustment angle refers to the tilt angle of the air guide plate after manual adjustment by the user. The method for obtaining this angle is to stop timing when the air guide plate is detected to be rotating. If this time falls within the angle verification time range, the manual adjustment angle is calculated according to the tilt angle calculation method described in step 71.

[0077] If the rotation time of the air guide plate falls within the angle verification time range, it indicates that the air blowing angle adjusted by the system will make the user feel uncomfortable. Therefore, the manual adjustment angle is obtained.

[0078] Step 748: Obtain the hand-operated image based on the hand-operated angle.

[0079] The "manual rotation image" refers to the image after the user rotates the air guide plate. The method for obtaining this image is the same as that described in step 1, and will not be repeated here.

[0080] Step 749: Obtain occlusion information of the hand-operated image.

[0081] Manual occlusion information refers to information about obstructions in the image after the user rotates the air deflector. The method for obtaining this information is the same as that described in step 2, and will not be repeated here.

[0082] Step 750: If the manual obstruction information exists and is consistent with the obstruction information, control the motor corresponding to the motor number to turn off.

[0083] If the manual obstruction information exists and matches the obstruction information, it means that the user has adjusted the air guide plate's blowing angle to the initial angle. The user does not want the air to blow according to the updated angle, and the obstruction is intentional on the part of the user who does not want the air to blow directly. Therefore, the motor corresponding to the control motor number is turned off.

[0084] This also includes a method for not controlling the shutdown of the motor corresponding to the motor number, the method comprising: Step 76: Obtain the air guide plate number based on the obstructed area.

[0085] The number of the air guide plate here is the same as the number of the air guide plate in step 740, so it will not be described again here.

[0086] Step 77: Determine the corresponding recovery device number and abnormal fan number based on the air guide plate number.

[0087] The energy recovery device number is a unique identifier for the energy recovery device. Here, it is determined that each air guide plate corresponds to one energy recovery device. This is established by those skilled in the art based on a mapping relationship between the energy recovery devices and air guide plates at the time of manufacture of the new energy vehicle. The energy recovery devices are then numbered according to the air guide plate number and entered into the system. The abnormal fan number indicates the motor number corresponding to the air guide plate with an obstruction at the air outlet. Here, the abnormal fan number corresponds to the fan number of the air guide plate with the obstruction. It is determined that each air guide plate corresponds to one motor for blowing air. This is established by those skilled in the art based on a mapping relationship between the motors and air guide plates at the time of manufacture of the new energy vehicle. The motors are then numbered according to the air guide plate number and entered into the system. When the system detects an obstruction at the air guide plate, the system determines the corresponding motor number based on the air guide plate number and treats that motor number as the abnormal fan number.

[0088] Step 78: Obtain an energy recovery plan based on the recycling device number.

[0089] Energy recovery schemes refer to methods for recovering and storing usable energy that is already inside the vehicle or enters the vehicle from outside. Here, the system establishes a mapping relationship between recovery device numbers and energy recovery schemes. Different numbers of recovery devices correspond to different suitable scenarios and corresponding recovery strategies. When the system reads the target recovery device number, it automatically finds a matching scheme and, combined with the current air conditioning operating conditions (such as the state of the air deflector obstruction and the fan operating power) and the vehicle's energy demand, generates a targeted energy recovery execution command.

[0090] Step 79: Control the energy recovery device corresponding to the recovery device number to execute the energy recovery plan to obtain recovered energy.

[0091] Recovered energy refers to energy that can be reused, obtained through an energy recovery scheme. Here, it is obtained by the system controlling the corresponding device to recover energy according to the energy recovery scheme, and then using this energy as recovered energy.

[0092] The methods for extracting occlusion information to obtain the occlusion area include: Step 80: Obtain foreign object information based on the occlusion information and the preset foreign object characteristics.

[0093] Foreign object characteristics refer to the features of objects other than the air deflector. This information is obtained by professionals in the field through online research to identify all objects suitable for placement in new energy vehicles, and then input into the system. Foreign object information refers to relevant information about objects other than the air deflector, including but not limited to size, color, and shape. This information is obtained by the system matching the identified obstruction area features with a pre-set foreign object feature database. Then, a feature similarity algorithm is used to calculate the matching degree between the obstruction area features and the foreign object features. If the matching degree is high, the obstruction object is identified as a foreign object, and its relevant parameter information is used as the foreign object information.

[0094] Step 81: Obtain the foreign object parameters based on the foreign object information and find the corresponding foreign object standard parameters.

[0095] Foreign object parameters refer to the actual parameters of foreign objects that may obstruct the air guide plate in the image. These parameters include, but are not limited to, the geometric dimensions, outline, and relative position of the foreign object. The method for obtaining these parameters is as follows: First, the system calibrates the air guide plate camera device, using a standard reference object of known size (such as the air guide plate) to obtain the pixel-to-physical size conversion coefficient k. Then, the Canny edge detection algorithm is applied to the preprocessed air guide plate image to extract the foreign object's outline edge. The minimum bounding rectangle algorithm is used to obtain the pixel outline parameters and relative pixel coordinates of the foreign object. Finally, the conversion coefficient k is used to convert the pixel parameters into actual physical size and relative position, and the results are combined with the outline fitting to form the complete foreign object parameters.

[0096] Foreign object standard parameters refer to the standardized attribute parameters of various foreign objects that can enter the vehicle and may obstruct the air deflector. The lookup method here involves different standard parameters corresponding to different objects. Personnel skilled in the field search for the relevant object's parameters online and input them into the system. When the system receives foreign object information, it automatically identifies the foreign object based on the information, then finds and outputs the foreign object's standard parameters.

[0097] Step 82: If the foreign object parameters are consistent with the foreign object standard parameters, obtain the foreign object area based on the foreign object information and regard the foreign object area as the occlusion area.

[0098] The foreign object region refers to the location and area of ​​the object. This is obtained by the system identifying the foreign object and then precisely matching its geometric dimensions and outline features with the pixel coordinates of the obstructed area in the real-time image of the air guide plate. This identifies the image region that perfectly corresponds to the standard dimensions and outline of the foreign object. Then, based on the calibration parameters of the camera installation, the pixel coordinates of this image region are converted into the actual physical location and area of ​​the air guide plate, which is then used as the foreign object region.

[0099] If the parameters of the foreign object are consistent with the standard parameters of the foreign object, it means that the object is placed at the air outlet of the air guide plate and will block the normal airflow from the air outlet. Therefore, the foreign object area is obtained based on the foreign object information and is regarded as the blocking area.

[0100] Step 83: If the foreign object parameters are inconsistent with the foreign object standard parameters, the foreign object area will not be regarded as an obstruction area.

[0101] If the parameters of the foreign object are inconsistent with the standard parameters of the foreign object, it means that the object is placed far away from the air outlet and will not affect the normal airflow of the air outlet. Therefore, the area with the foreign object is not considered as an obstruction area.

[0102] The methods for controlling the energy recovery device corresponding to the recovery device number to execute the energy recovery scheme include: Step 790: Disassemble the recycling device number to obtain the wind power device number and the thermal power device number.

[0103] The wind energy device number refers to the unique identifier of the device that recovers wind energy. The thermal energy device number refers to the unique identifier of the device that recovers thermal energy. The recovery devices include both wind and thermal energy recovery devices. Staff assign unique identifiers to these devices based on the arrangement of the energy recovery devices when the new energy vehicle leaves the factory and input them into the system. When the system receives the recovery device number, it looks up the corresponding wind and thermal energy device numbers and outputs them.

[0104] Step 791: Obtain the required temperature, device temperature, and inlet air temperature.

[0105] The required temperature refers to the temperature needed when the user turns on the air conditioning. This is obtained by using a control panel or knob inside the new energy vehicle to adjust the air conditioning temperature; the system calculates the required temperature based on the user's input or the temperature value adjusted by the knob. The device temperature refers to the temperature stored within the recycling device. This is obtained by using a sensor installed inside the recycling device to monitor the temperature in real time; the system calculates the device temperature based on the data transmitted by the sensor. The intake air temperature refers to the temperature of the air that needs to be heated or cooled before being blown out from the air deflector after being circulated from outside or inside the new energy vehicle. This is obtained by using a sensor at the air intake of the new energy vehicle to monitor the temperature of the incoming air in real time.

[0106] Step 792: Obtain the recovery temperature range based on the required temperature and the device temperature.

[0107] The recovery temperature range refers to the temperature interval within which the intake air temperature is determined to be recovered. This is achieved by using the required temperature and the unit temperature as the maximum and minimum values ​​for the recovery temperature, and then defining the temperature range between these two values ​​as the recovery temperature range.

[0108] Step 793: If the inlet air temperature falls within the recovery temperature range, determine the wind energy recovery plan based on the wind energy device number and execute it.

[0109] A wind energy recovery scheme refers to a scheme that recovers wind energy and converts it into energy. The method determined here is a part of the energy recovery scheme described in step 78.

[0110] If the intake air temperature falls within the recovery temperature range, since the recovery temperature range is determined by the required temperature and the device temperature, the intake air temperature must be higher than or lower than either the required temperature or the device temperature. If the intake air temperature is higher than the required temperature, it will be lower than the device temperature. Because the intake air temperature is lower than the device temperature, the air entering the car cannot provide heat to the recovery device. Furthermore, because it is higher than the required temperature, it cannot be cooled by the device. Therefore, the wind energy recovery plan is determined and implemented based on the wind energy device number. If the intake air temperature is lower than the required temperature, it will be higher than the device temperature. Therefore, the air entering the car cannot be heated by the recovery device. Also, because the intake air needs to be heated to reach the required temperature, no excess heat can be generated for the recovery device to absorb. Again, the wind energy recovery plan must be determined and implemented based on the wind energy device number.

[0111] Step 794: If the inlet air temperature does not fall within the recovery temperature range, determine the heat recovery plan according to the heat energy device number and execute it.

[0112] A heat recovery scheme refers to a scheme that recovers heat energy from the air. The method determined here is also part of step 78, but here it only focuses on recovering heat energy.

[0113] If the inlet air temperature does not fall within the recovery temperature range, it means that the inlet air temperature can approach the required temperature through the device temperature. At this time, it can absorb the heat or cold energy in the inlet air temperature. Therefore, the heat recovery scheme is determined and implemented according to the heat energy device number.

[0114] This also includes methods for utilizing recovered energy, which include: Step 795: Disassemble and recover energy to obtain recovered heat energy.

[0115] Thermal energy recovery refers to the energy stored within a thermal energy device. Here, it is obtained by recovering energy, including wind and thermal energy, and then filtering out the thermal energy from the recovered energy to obtain the recovered thermal energy.

[0116] Step 796: Obtain the high-temperature critical value and the low-temperature critical value based on the recovery temperature range.

[0117] The high-temperature critical value refers to the highest temperature value within the recovery temperature range. The low-temperature critical value refers to the lowest temperature value within the recovery temperature range. Here, the highest value within the recovery temperature range is considered the high-temperature critical value, and the lowest value is considered the low-temperature critical value.

[0118] Step 797: If the inlet air temperature does not fall within the recovery temperature range and is less than the low temperature critical value, determine the heating scheme based on the recovered heat energy and the inlet air temperature and execute it.

[0119] The heating scheme refers to a method for heating the air entering the vehicle through a device. Here, the method involves the system calculating the specific amount of heat energy that can be converted from the device's temperature to raise the intake air temperature. Simultaneously, considering the difference between the intake air temperature and the high-temperature threshold, as well as the target vehicle interior temperature requirement, the system formulates specific operations to control the device temperature to achieve this temperature increase. The temperature increase value and the device temperature control operation are then integrated into the heating scheme.

[0120] If the intake air temperature does not fall within the recovery temperature range and is less than the low temperature critical value, it indicates that the intake air temperature is low and needs to be heated to reach the required temperature before being blown into the vehicle. In order to save energy, the heat from the recovery device can be used to partially heat the air entering the car. Therefore, the heating scheme is determined and implemented based on the recovered heat energy and the intake air temperature.

[0121] Step 798: If the inlet air temperature does not fall within the recovery temperature range and is greater than the high temperature critical value, determine and implement a cooling scheme based on the recovered heat energy and the inlet air temperature.

[0122] A cooling scheme refers to a method for cooling the air entering the vehicle through a device. Here, the method involves the system calculating the specific amount of cooling energy that can be converted from the device's temperature to lower the intake air temperature. Simultaneously, considering the difference between the intake air temperature and the high-temperature critical value, as well as the target vehicle interior temperature requirement, a specific operation is devised to control the device temperature to achieve this temperature reduction. The temperature reduction value and the device temperature control operation are then integrated into the cooling scheme.

[0123] If the inlet air temperature does not fall within the recovery temperature range and is greater than the high temperature critical value, it indicates that the inlet air temperature is high and cooling is required. In order to save energy, partial cooling can be achieved through the device. Therefore, the cooling scheme is determined and implemented based on the recovered heat energy and the inlet air temperature.

[0124] This also includes: Step 799: Upon receiving a stop blowing signal, obtain the vehicle air temperature.

[0125] The "Stop Fan" signal refers to the signal that the fan in a new energy vehicle has stopped working. This is received by pressing a button on the vehicle that indicates the fan has stopped.

[0126] Vehicle air temperature refers to the temperature of the air inside the vehicle. This is obtained by a sensor inside the new energy vehicle that monitors the interior temperature in real time. When the system receives a signal to stop the airflow, it automatically uses the real-time interior temperature obtained from the sensor as the vehicle air temperature.

[0127] When a stop blowing signal is received, it means that the user has stopped using the air conditioner. Therefore, the vehicle air temperature can be obtained to analyze whether energy can be recovered subsequently.

[0128] Step 780: Calculate the recovery temperature efficiency based on the vehicle air temperature and the preset vehicle air content.

[0129] Vehicle air content refers to the total air content inside a new energy vehicle. This vehicle air content is calculated by those skilled in the art based on the vehicle's factory-specified cabin volume and the air density under standard atmospheric conditions. Specifically, the calculation formula is to multiply the vehicle's interior space volume by the standard atmospheric air density. Recovery temperature efficiency refers to the efficiency of recovering the air temperature inside the vehicle. This is calculated based on the principle of energy conservation, combining the vehicle air content and changes in vehicle air temperature to calculate the recovery and utilization rate of the heat energy from the air inside the vehicle by the energy recovery device. Specifically, the recovery temperature efficiency is obtained by dividing the recovered heat energy by the total heat energy of the air inside the vehicle.

[0130] Step 781: If the recovery temperature efficiency is greater than the preset air conversion efficiency, determine the vehicle air recovery plan based on the vehicle air temperature and execute it.

[0131] Air conversion efficiency refers to the ratio of electrical energy input to the motor to mechanical energy consumed by the fan rotating in the reverse direction when the motor drives the fan to reverse and recover heat energy from the air inside the vehicle. The air conversion efficiency is obtained by pre-calibrating the motor's rated power and the fan's energy conversion coefficient at different speeds. When the motor drives the fan to reverse and recover heat from the vehicle's interior air, the actual output power of the motor and the real-time speed of the fan are collected in real time, and the air conversion efficiency is calculated based on the energy conversion coefficient.

[0132] The vehicle air recovery scheme refers to a scheme to recover energy from inside a car. Here, the method is determined by the system using real-time vehicle air temperature as the core basis, selecting the corresponding recovery path based on the vehicle air temperature parameter, driving the fan to rotate in the opposite direction to deliver air from inside the car, and synchronously adjusting the fan speed and the operating parameters of the recovery module to complete the recovery of air heat energy or cold energy. This operation and related data are used as the vehicle air recovery scheme.

[0133] If the temperature recovery efficiency is greater than the air conversion efficiency, it means that a large amount of energy can be obtained from the air inside the vehicle. Therefore, the vehicle air recovery plan is determined and implemented based on the vehicle air temperature.

[0134] Step 782: If the recovery temperature efficiency is less than the air conversion efficiency, the vehicle air recovery scheme will not be executed.

[0135] If the temperature recovery efficiency is lower than the air conversion efficiency, it means that even if the air inside the vehicle is recovered, the energy conversion efficiency is low, so the vehicle air recovery program is not implemented.

[0136] Based on the same inventive concept, embodiments of the present invention provide a multi-mode control system for the on / off terminal of a heat pump air conditioning fan in a new energy vehicle.

[0137] One of them is a multi-mode control system for the on / off terminal of a heat pump air conditioning fan in a new energy vehicle, comprising: The acquisition module is used to acquire images of the air guide plate, the rotation time of the air guide plate, the required temperature, the device temperature, the inlet air temperature, and the vehicle air temperature.

[0138] The memory is used to store the program of a multi-mode control method for the terminal switching of a heat pump air conditioner fan in a new energy vehicle.

[0139] The processor loads and executes programs from memory.

[0140] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional modules is used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device, and unit described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0141] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A multi-mode control method for a heat pump air conditioner fan in a new energy vehicle with terminal on / off switching, characterized in that, include: Step 1: In response to the blowing signal, acquire an image of the air guide plate; Step 2: Determine occlusion information based on the air guide plate image; Step 3: If occlusion information exists, disassemble the occlusion information to obtain the occluded area; Step 4: Calculate the shading area of ​​the single board based on the shading area and the preset single board area; Step 5: If the area obstructed by a single board reaches the preset inefficient area, define the area obstructed by the single board as an inefficient single board area. Step 6: Determine the corresponding motor number based on the inefficient board area; Step 7: Turn off the motor corresponding to the motor number.

2. The multi-mode control method for a terminal-on / off heat pump air conditioner fan in a new energy vehicle according to claim 1, characterized in that, Methods for controlling the motor corresponding to the motor number to shut down include: Step 70: Obtain the features of the occlusion object based on the occlusion information; Step 71: If the characteristics of the obstruction are consistent with the preset characteristics of the wind board, calculate the tilt angle based on the obstruction area and the area of ​​the single board; Step 72: Find the corresponding suggested parameters based on the tilt angle; Step 73: Adjust the motor according to the recommended parameters without shutting down the motor corresponding to the motor number; Step 74: If the characteristics of the obstruction are inconsistent with the characteristics of the wind vane, shut down the motor corresponding to the motor number.

3. The multi-mode control method for a terminal-on / off heat pump air conditioner fan in a new energy vehicle according to claim 2, characterized in that, If the characteristics of the obstruction do not match the characteristics of the wind deflector, the methods for controlling the motor corresponding to the motor number to shut down include: Step 740: Determine the corresponding air guide plate number based on the obstructed area; Step 741: Calculate and adjust the angle based on the area obstructed by the single panel; Step 742: Control the air guide plate corresponding to the number of the air guide plate to adjust according to the corresponding adjustment angle to obtain the updated angle; Step 743: Reacquire the wind deflector image based on the updated angle to obtain occlusion information; Step 744: If occlusion information is not available, recalculate the tilt angle to obtain suggested parameters and adjust them; Step 745: If the occlusion information exists, control the motor corresponding to the motor number to turn off.

4. The multi-mode control method for terminal on / off switching of a heat pump air conditioner fan in a new energy vehicle according to claim 3, characterized in that, Also includes: Step 746: After controlling the air guide plate corresponding to the number of the air guide plate to adjust according to the corresponding adjustment angle, accumulate the time to obtain the rotation time of the air guide plate; Step 747: If the rotation time of the air guide plate falls within the preset angle verification time range, obtain the manual adjustment angle; Step 748: Obtain the hand-operated image based on the hand-operated angle; Step 749: Obtain occlusion information of the hand-operated image; Step 750: If the manual obstruction information exists and is consistent with the obstruction information, control the motor corresponding to the motor number to turn off.

5. A multi-mode control method for a terminal-on / off heat pump air conditioner fan in a new energy vehicle according to claim 2, characterized in that, It also includes a method for not controlling the shutdown of the motor corresponding to the motor number, the method comprising: Step 76: Obtain the air guide plate number based on the obstructed area; Step 77: Determine the corresponding recovery device number and abnormal fan number based on the air guide plate number; Step 78: Obtain an energy recovery plan based on the recycling device number; Step 79: Control the energy recovery device corresponding to the recovery device number to execute the energy recovery plan to obtain recovered energy.

6. The multi-mode control method for terminal on / off switching of a heat pump air conditioner fan in a new energy vehicle according to claim 5, characterized in that, Methods for extracting occlusion information to obtain the occlusion area include: Step 80: Obtain foreign object information based on the occlusion information and the preset foreign object characteristics; Step 81: Obtain the foreign object parameters based on the foreign object information and find the corresponding standard parameters for the foreign object; Step 82: If the foreign object parameters are consistent with the foreign object standard parameters, obtain the foreign object area based on the foreign object information and regard the foreign object area as the occlusion area; Step 83: If the foreign object parameters are inconsistent with the foreign object standard parameters, the foreign object area will not be regarded as an obstruction area.

7. A multi-mode control method for a terminal-on / off heat pump air conditioner fan in a new energy vehicle according to claim 5, characterized in that, The methods for controlling the energy recovery device corresponding to the recovery device number to execute the energy recovery scheme include: Step 790: Disassemble the recycling device number to obtain the wind power device number and the thermal power device number; Step 791: Obtain the required temperature, device temperature, and inlet air temperature; Step 792: Obtain the recovery temperature range based on the required temperature and the device temperature; Step 793: If the inlet air temperature falls within the recovery temperature range, determine the wind energy recovery plan based on the wind energy device number and execute it; Step 794: If the inlet air temperature does not fall within the recovery temperature range, determine the heat recovery plan according to the heat energy device number and execute it.

8. A multi-mode control method for a terminal-on / off heat pump air conditioner fan in a new energy vehicle according to claim 7, characterized in that, It also includes methods for utilizing recycled energy, which include: Step 795: Disassemble and recover energy to obtain recovered heat energy; Step 796: Obtain the high-temperature critical value and the low-temperature critical value based on the recovery temperature range; Step 797: If the inlet air temperature does not fall within the recovery temperature range and is less than the low temperature critical value, determine the heating scheme based on the recovered heat energy and the inlet air temperature and execute it. Step 798: If the inlet air temperature does not fall within the recovery temperature range and is greater than the high temperature critical value, determine and implement a cooling scheme based on the recovered heat energy and the inlet air temperature.

9. A multi-mode control method for a terminal-on / off heat pump air conditioner fan in a new energy vehicle according to claim 7, characterized in that, Also includes: Step 799: Upon receiving a stop blowing signal, obtain the vehicle air temperature; Step 780: Calculate the recovery temperature efficiency based on the vehicle air temperature and the preset vehicle air content; Step 781: If the recovery temperature efficiency is greater than the preset air conversion efficiency, determine the vehicle air recovery plan based on the vehicle air temperature and execute it. Step 782: If the recovery temperature efficiency is less than the air conversion efficiency, the vehicle air recovery scheme will not be executed.

10. A multi-mode control system for a terminal-controlled heat pump air conditioning fan in a new energy vehicle, characterized in that, include: The acquisition module is used to acquire images of the air guide plate, the rotation time of the air guide plate, the required temperature, the device temperature, the inlet air temperature, and the vehicle air temperature; A memory for storing a program for a multi-mode control method for a terminal switching heat pump air conditioner fan in a new energy vehicle, as described in any one of claims 1 to 9; The processor loads and executes programs from memory.

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