Control method and device of rear air conditioner panel timer, medium and vehicle

Abstract

The invention provides a control method and device of a rear air conditioner panel timer, a medium and a vehicle, and relates to the technical field of air conditioners. According to the method, the number of times of adjusting a temperature adjusting button of a rear air conditioner panel by a user is predicted according to the target indoor temperature preferred by a target user and the current human body and environment conditions, so that the possible number of times of adjusting of the user at this time is determined according to the air conditioner adjusting habit of the target user in a similar scene; further, an appropriate target time length is determined according to the predicted adjustment frequency, so that in the process that the rear air conditioner panel timer reaches the target time length, the actual continuous pressing frequency of the user is subjected to complete statistics and is sent to a remote information processing control unit; therefore, the target air conditioner temperature which the back row user wants to set can be determined according to the complete and accurate frequency information, the execution of the air conditioner system is accurately controlled, and finally the correct target air conditioner temperature is timely fed back to the back air conditioner panel to be displayed, so that the user experience is improved.

Description

Technical Field

[0001] The present application relates to the field of air conditioning technology, and in particular to a control method, device, medium and vehicle for a rear air conditioning panel timer. Background Art

[0002] At present, the air conditioning controller of some EV (Electric Vehicle) models uses TDU (Telematics BOX) controller. When the rear-seat user adjusts the air conditioning temperature through the rear air conditioning panel (RAC), the generated temperature adjustment command will be forwarded to the TDU through the VIU (Vehicle Information Unit). The TDU controls the air conditioning system according to the temperature adjustment command, collects the actual air conditioning temperature after the air conditioning system is executed, and forwards it to the rear air conditioning panel for display through the VIU.

[0003] However, when the rear-seat users quickly and continuously click the temperature adjustment buttons on the rear air-conditioning panel, the TDU may lose the command due to untimely response, which ultimately leads to the actual air-conditioning temperature displayed on the rear air-conditioning panel being inconsistent with the air-conditioning temperature that the rear-seat users want to set, affecting the user experience. Summary of the invention

[0004] The present application provides a control method, device, medium and vehicle for a rear air conditioning panel timer to solve the above-mentioned problems.

[0005] A first aspect of an embodiment of the present application provides a method for controlling a timer on a rear air conditioner panel, the method comprising: Determine the target indoor temperature preferred by the target users in the rear row; Determine the predicted adjustment times of the target user based on the target indoor temperature, the current rear indoor temperature, and the current body surface temperature of the target user; wherein the predicted adjustment times refers to the predicted cumulative times that the target user presses the temperature adjustment button on the rear air conditioning panel; The target duration of the target timer is determined based on the predicted number of adjustments; wherein the target timer is configured to start timing when it is detected that the temperature adjustment button is pressed for the first time, and to restart timing when the timing duration has not reached the target duration and the temperature adjustment button is pressed again, so that when the timing duration reaches the target duration, the telematics control unit controls the rear air-conditioning panel to display the target air-conditioning temperature based on the actual cumulative number of times the temperature adjustment button is pressed and the unit temperature adjustment.

[0006] Optionally, determining a target indoor temperature preferred by a target user includes: Acquire a thermal comfort evaluation index value corresponding to the target user; the thermal comfort evaluation index value is used to characterize the target user's perception of thermal comfort; Based on the thermal comfort evaluation index value, a target indoor temperature preferred by the target user is determined.

[0007] Optionally, the method further comprises: Determine the target indoor temperature preferred by the target user based on the stable air-conditioning temperature after the target user last adjusted the rear air-conditioning panel under different test environments; Based on the target indoor temperature, a thermal comfort evaluation index value corresponding to the target user is determined.

[0008] Optionally, determining the predicted adjustment times of the target user based on the target indoor temperature, the current rear indoor temperature, and the current body surface temperature of the target user includes: Based on the current vehicle interior temperature, the current air conditioning temperature, the current body surface temperature of the target user and a preset target body surface temperature, determining the current body surface temperature adjustment time required for the target user's body temperature to reach the target body surface temperature from the current body surface temperature; Based on the current body surface temperature adjustment time, the temperature difference between the target indoor temperature and the current rear indoor temperature, and the air conditioning adjustment habits corresponding to the target user, the predicted adjustment times of the target user are determined; wherein the air conditioning adjustment habits are used to characterize the correspondence between the temperature difference, the body surface temperature adjustment time and the adjustment times.

[0009] Optionally, the method further comprises: Based on the historical vehicle interior temperature, the historical first air-conditioning temperature, the historical body surface temperature and the target body surface temperature of the target user when the target user gets on the vehicle under different test environments, determine the historical body surface temperature adjustment time required for the target user's body temperature to reach the target body surface temperature from the historical body surface temperature; Obtaining a historical second air-conditioning temperature after the target user adjusts the air-conditioning panel; Based on the temperature difference between the historical rear indoor temperature when the target user got on the vehicle and the historical second air-conditioning temperature, the historical body surface temperature adjustment duration, and the historical number of times the target user pressed the temperature adjustment button within the historical body surface temperature adjustment duration, sample data corresponding to the target user is obtained; Cluster analysis is performed on the sample data to obtain the air conditioning adjustment habits of the target user.

[0010] Optionally, the method further comprises: When the driver turns on the air conditioner in advance, obtaining the front air conditioner temperature preset by the driver and determining the length of time the driver has been in the vehicle; Determining the front row indoor temperature when the driver gets in the vehicle based on the front row air conditioning temperature and the boarding time; The current rear row indoor temperature is determined based on the front row indoor temperature and the heat conduction temperature difference between the front and rear rows of the vehicle.

[0011] Optionally, determining the front row indoor temperature when the driver gets in the vehicle based on the front row air conditioning temperature and the boarding time includes: Based on the initial indoor temperature when the driver turns on the air conditioner in advance, the front row air conditioner temperature and the boarding time, determining the heat value consumed by the air conditioning system after executing the boarding time according to the front row air conditioner temperature; Based on the calorific value and the initial indoor temperature, the front row indoor temperature when the driver gets on the vehicle is determined.

[0012] Based on the same inventive concept, a second aspect of an embodiment of the present application provides a control device for a rear air conditioner panel timer, the device comprising: A target temperature determination module, used to determine a target indoor temperature preferred by a target user in the back row; An adjustment times prediction module, used to determine the predicted adjustment times of the target user based on the target indoor temperature, the current rear indoor temperature, and the current body surface temperature of the target user; wherein the predicted adjustment times refers to the predicted cumulative number of times the target user presses the temperature adjustment button on the rear air conditioning panel; A target duration determination module is used to determine the target duration of the target timer according to the predicted number of adjustments; wherein the target timer is configured to start timing when it is detected that the temperature adjustment button is pressed for the first time, and to restart timing when the timing duration has not reached the target duration and the temperature adjustment button is pressed again, so that the telematics control unit controls the rear air-conditioning panel to display the target air-conditioning temperature based on the actual cumulative number of times the temperature adjustment button is pressed and the unit adjustment temperature when the timing duration reaches the target duration.

[0013] Based on the same inventive concept, the third aspect of an embodiment of the present application provides a storage medium, which stores machine executable instructions. When the machine executable instructions are executed by a processor, the control method of the rear air-conditioning panel timer proposed in the first aspect of the present application is implemented.

[0014] Based on the same inventive concept, the fourth aspect of an embodiment of the present application provides a vehicle, including a processor and a memory; the memory stores machine executable instructions that can be executed by the processor, and the processor is used to execute the machine executable instructions to implement the control method of the rear air-conditioning panel timer proposed in the first aspect of the present application.

[0015] Compared with the prior art, this application has the following advantages: A method for controlling a rear air-conditioning panel timer provided in an embodiment of the present application first determines a target indoor temperature preferred by a target user, and then determines a predicted number of adjustments for the target user based on the target indoor temperature, the current rear indoor temperature, and the current body surface temperature of the target user; wherein the predicted number of adjustments refers to the predicted cumulative number of times the target user presses a temperature adjustment button in the rear air-conditioning panel; thereafter, the target duration of the target timer is determined based on the predicted number of adjustments.

[0016] The method predicts the number of times the user adjusts the temperature adjustment button of the rear air-conditioning panel according to the target indoor temperature preferred by the target user and the current human body and environmental conditions, thereby determining the possible number of adjustments by the user this time according to the air-conditioning adjustment habits of the target user in similar scenarios, and then determining a suitable target duration according to the predicted number of adjustments, so that when the rear air-conditioning panel timer reaches the target duration, the actual number of consecutive presses by the user is completely counted, and the number information is generated and sent to the remote information processing control unit, so that it can determine the target air-conditioning temperature that the rear-seat user wants to set according to the complete and accurate number information and accurately control the execution of the air-conditioning system, and finally timely feed back the correct target air-conditioning temperature to the rear air-conditioning panel for display, so as to ensure that the air-conditioning temperature display of the rear air-conditioning panel is consistent with the actual setting requirements of the user, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0018] Figure 1 is a flow chart of a method for controlling a rear air conditioning panel timer in one embodiment of the present application; Figure 2 is a flow chart of a method for controlling a rear air conditioning panel timer in another embodiment of the present application; Figure 3 This is a functional module diagram of a control device for a rear air conditioning panel timer in one embodiment of the present application; Figure 4 It is a structural schematic diagram of a vehicle in one embodiment of the present application. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] At present, the air conditioning controller of some EV (Electric Vehicle) models uses TDU (Telematics BOX) controller. When the rear-seat user quickly and continuously clicks the temperature adjustment button on the rear air conditioning panel, the TDU may lose the command due to untimely response, which eventually causes the actual air conditioning temperature displayed on the rear air conditioning panel to be inconsistent with the air conditioning temperature that the rear-seat user wants to set, affecting the user experience.

[0021] In this regard, the inventor proposes a rear air conditioning panel display control method, which counts the number of consecutive adjustments made by the rear users by setting a target timer. Before the target timer reaches the target time, each time the temperature adjustment button is detected to be pressed again, the timer is restarted until the target time is successfully reached. Afterwards, the rear air conditioning panel sends the number information to the TDU, so that the TDU can accurately determine the first target air conditioning temperature that the rear users want to set based on the number information and accurately control the air conditioning system to execute, and finally feedback the correct first target air conditioning temperature to the rear air conditioning panel for display.

[0022] In the above scheme, the setting of the target duration of the target timer has a great impact on the effect of the scheme. If the target duration is too short, the number of times information may be collected incompletely, affecting the accuracy of the final display; if the target duration is too long, the final display may be stuck or delayed, affecting the user experience. Therefore, how to determine the target duration of the target timer is an urgent problem to be solved.

[0023] In view of this, the present application predicts the number of times the user adjusts the temperature adjustment button of the rear air-conditioning panel according to the target indoor temperature preferred by the target user and the current human body and environmental conditions, thereby determining the possible number of adjustments made by the user this time according to the air-conditioning adjustment habits of the target user in similar scenarios, and then determining a suitable target duration based on the predicted number of adjustments, so that when the rear air-conditioning panel timer reaches the target duration, the actual number of consecutive presses by the user is fully counted, and the number information is generated and sent to the remote information processing control unit, so that it can determine the target air-conditioning temperature that the rear users want to set based on the complete and accurate number information and accurately control the execution of the air-conditioning system, and finally promptly feedback the correct target air-conditioning temperature to the rear air-conditioning panel for display, to ensure that the air-conditioning temperature display of the rear air-conditioning panel is consistent with the user's actual setting requirements, thereby improving the user experience.

[0024] Please refer to Figure 1 , Figure 1 1 is a flow chart of a method for controlling a rear air conditioning panel timer according to an embodiment of the present application. Figure 1 As shown, the method comprises the following steps: S101: Determine a target indoor temperature preferred by a target user in the rear row.

[0025] In this embodiment, the target user refers to a user whose identity information is recorded. When a user gets on the car from the back seat, the user's identity is first authenticated. If the identity authentication is successful, the user is determined to be the target user. Then, the personal database of the target user is called to determine the target indoor temperature preferred by the target user. The target indoor temperature refers to the indoor ambient temperature that the target user expects to achieve. The personal database of the target user may include the target user's height, weight, seat usage habits, air conditioning setting habits, preferred target indoor temperature and other personalized information.

[0026] Specifically, the user's identity can be identified by face recognition. When the user gets on the bus, the user's facial image is captured by the camera, and then the captured image is compared with the pre-stored facial data. If the comparison is successful, the user's identity is confirmed, thereby identifying the target user. In addition, user identity verification can also be performed by mobile phone APP recognition and other methods, which are not specifically limited in this application.

[0027] In this embodiment, the target indoor temperature preferred by the target user corresponds to the identity information of the target user. The target indoor temperature can be set by the user in advance through the vehicle-mounted system, or can be collected by the vehicle-mounted system according to the user's habits. For example, if it is detected that the user has set the air-conditioning temperature to about 25°C in a short period of time, the target indoor temperature preferred by the user is determined to be 25°C.

[0028] Furthermore, a target user may correspond to one or more target indoor temperatures. For example, a target user may correspond to a target indoor temperature in summer and a target indoor temperature in winter. When applied, after the user gets on the bus and passes the identity authentication, the target indoor temperature preferred by the target user can be determined based on the current season.

[0029] S102: Determine the predicted adjustment times of the target user based on the target indoor temperature, the current rear indoor temperature, and the current body surface temperature of the target user.

[0030] In this embodiment, after the target user in the rear seat gets in the car, he may be dissatisfied with the current temperature inside the car, and then he will adjust the air conditioning temperature by pressing the temperature adjustment button on the rear air conditioning panel to make the temperature inside the car reach the temperature preferred by the user, that is, the target indoor temperature. Therefore, the above-mentioned predicted adjustment times refer to the predicted cumulative times that the target user presses the temperature adjustment button on the rear air conditioning panel, which can be understood as the number of times the user may press the temperature adjustment button in the current scenario, that is, the number of consecutive presses.

[0031] The above-mentioned current rear indoor temperature refers to the temperature inside the rear car when the target user gets on the car from the rear, which can be detected by a temperature sensor, etc. The current body surface temperature of the target user refers to the body surface temperature of the target user when he gets on the car from the rear, which can be detected by a wearable device or infrared camera thermal imaging, etc.

[0032] It is easy to understand that the target indoor temperature, the current rear indoor temperature, the current body temperature of the target user, etc., have a great influence on the target user's possible air conditioning temperature adjustment behavior. Specifically, if the temperature difference between the current rear indoor temperature and the target indoor temperature is greater, or the target user's body temperature is higher when getting on the car, the target user is more likely to make an adjustment, and the number of possible consecutive presses is also greater, so as to lower (or raise) the rear indoor temperature as quickly as possible to reach a temperature state that the target user feels comfortable.

[0033] In this implementation, based on the target indoor temperature, the current rear indoor temperature, and the current body surface temperature of the target user, the adjustment behavior that the target user may make in the current scenario is predicted, and the cumulative number of times the target user may press the temperature adjustment button is predicted to obtain the predicted adjustment number of the target user, providing a reference basis for determining the target duration of the subsequent rear air-conditioning panel timer.

[0034] In a feasible implementation, a preset intelligent learning model can be used to predict the number of adjustments of the target user. Among them, the intelligent learning model can use a regression model in machine learning (such as linear regression, random forest regression, gradient boosting tree, etc.), and can also use a classification model (such as logistic regression, decision tree, random forest, etc.). By collecting the air conditioning adjustment data (including temperature, wind speed, mode, etc.) of the target user or similar users under different conditions, the intelligent learning model is trained and optimized to obtain a preset intelligent learning model. During the training process, the target indoor temperature, the rear indoor temperature, and the target user's body surface temperature are used as the main features to learn the mapping relationship between these features and the user's adjustment times. At the same time, other relevant features can also be considered, such as indoor and outdoor temperature difference, humidity difference, light intensity change, etc. When applied, the target indoor temperature, the current rear indoor temperature, and the current body surface temperature of the target user are directly input into the model to obtain the predicted number of adjustments of the target user.

[0035] S103: Determine the target duration of the target timer according to the predicted number of adjustments.

[0036] Among them, the target timer is configured to start timing when it is detected that the temperature adjustment button is pressed for the first time, and to restart timing when the timing duration has not reached the target duration and the temperature adjustment button is pressed again, so that when the timing duration reaches the target duration, the telematics control unit adjusts the temperature based on the actual cumulative number of times the temperature adjustment button is pressed and the unit, and controls the rear air-conditioning panel to display the target air-conditioning temperature.

[0037] In this embodiment, the purpose of setting the target timer is to completely count the actual number of consecutive presses of the temperature adjustment button by the target user when the target timer reaches the target duration.

[0038] Specifically, the number of consecutive adjustments made by the rear users is counted by setting a target timer. Before the target timer reaches the target time, each time the temperature adjustment button is detected to be pressed again, the timing will be restarted until the target time is successfully reached. It is easy to understand that when the target time is reached, the total number of times the user presses the button is the actual cumulative number of times the user presses the temperature adjustment button during this adjustment. Then, the rear air-conditioning panel will generate a frequency signal based on the actual cumulative number of times and send it to the telematics control unit (Telematics BOX, TDU for short), so that the TDU adjusts the temperature based on the frequency signal and unit, accurately determines the target air-conditioning temperature that the rear users want to set, and accurately controls the execution of the air-conditioning system, and finally feeds back the correct target air-conditioning temperature to the rear air-conditioning panel for display, thereby ensuring that the air-conditioning temperature display of the rear air-conditioning panel is consistent with the user's actual setting requirements, thereby improving the user experience.

[0039] In addition, the target timer is also equipped with a timeout protection mechanism, which is used to force the target timer to be reset when the target timer reaches the target time and the timer is not stopped. Therefore, by setting a timeout protection mechanism for the target timer, when the target timer is not stopped after the timer times out, it is forced to restart to stop the timer, in preparation for the next air conditioning temperature adjustment. Furthermore, the collection and statistics of the adjustment actions of the target user at different stages after getting on the vehicle are realized, ensuring that each time the target user makes an adjustment, the telematics control unit can accurately execute the user's setting instructions, ensuring that the air conditioning temperature display on the rear air conditioning panel is consistent with the user's actual setting requirements.

[0040] Among them, the setting of the target duration of the target timer is related to the number of adjustments made by the target user in the rear row. If the number of adjustments made by the target user is high (for example, 5 or 6 times), it means that the target user spends a long time adjusting the air-conditioning temperature through the rear air-conditioning panel. At this time, if the target duration is set too short, it is possible that the rear air-conditioning panel will send the number signal to the telematics control unit before the target user has finished pressing, causing the telematics control unit to calculate the wrong first target air-conditioning temperature based on the incomplete number signal and feed it back to the rear air-conditioning panel for display. Therefore, in this case, the target duration of the target timer needs to be set longer to ensure that the complete number signal is collected and sent to the telematics control unit for accurate processing. On the contrary, if the number of adjustments made by the target user is low (for example, 1 or 2 times), it means that the target user spends a short time adjusting the air-conditioning temperature through the rear air-conditioning panel. In this case, the target duration of the target timer can be set shorter to avoid the delay of the rear air-conditioning panel display, which affects the user experience.

[0041] In specific implementation, the corresponding relationship between the number of adjustment times and the target duration can be obtained through testing. For example, it takes about 1 second to press the temperature adjustment button twice, and it takes about 2 seconds to press the temperature adjustment button four times. Therefore, when the predicted number of adjustment times of the target user is determined to be 2 times through the above steps S101-S102, the target duration of the target timer is determined to be 1 second. When the predicted number of adjustment times is 4 times, the target duration of the target timer is determined to be 2 seconds.

[0042] The present application predicts the number of times the user adjusts the temperature adjustment button of the rear air-conditioning panel based on the target indoor temperature preferred by the target user and the current human body and environmental conditions, thereby determining the possible number of adjustments made by the user this time based on the target user's air-conditioning adjustment habits in similar scenarios, and then determining a suitable target duration for the rear air-conditioning panel timer based on the predicted number of adjustments, ultimately promoting the accuracy of the temperature display of the rear air-conditioning panel and improving the user experience.

[0043] Please refer to Figure 2, Figure 2 FIG. 1 is a flow chart of a method for controlling a rear air conditioning panel timer according to another embodiment of the present application. Figure 2 As shown, the method comprises the following steps: S201: When the driver turns on the air conditioner in advance, determine the current rear room temperature when the user gets in the vehicle.

[0044] In this embodiment, in a hot scene, the driver may wake up the IVI (In-Vehicle Infotainment) in advance through the owner APP on the mobile phone before getting in the car, turn on the air conditioner of the front seats in advance, and set the air conditioner temperature preferred by the driver to make the air conditioner work in advance and lower the temperature in the car. Assuming that the driver turns on the front air conditioner in advance, when the driver and the rear seat user get in the car at the same time, the current rear indoor temperature when getting in the car can be determined by the following method: S201-1: When the driver turns on the air conditioner in advance, obtain the front air conditioning temperature preset by the driver and determine the driver's boarding time.

[0045] In this embodiment, the front air conditioning temperature is set by the driver according to his / her preferred temperature, which represents the comfortable temperature in the car that the driver likes. The boarding time refers to the time from when the driver turns on the air conditioning to when the driver (and the rear seat users) board the car.

[0046] In specific implementation, the driver's relative position and moving speed from the vehicle can be estimated through GPS positioning, radar, Bluetooth signal strength (if the car key and the vehicle are connected via Bluetooth), etc., thereby estimating the time required for the driver to get on the vehicle.

[0047] S201-2: Determine the front row indoor temperature when the driver gets in the vehicle based on the front row air conditioning temperature and the time the driver gets in the vehicle.

[0048] In this embodiment, based on the front air-conditioning temperature and the boarding time, the front row indoor temperature of the vehicle can be determined after the air-conditioning system executes the boarding time according to the front row air-conditioning temperature, that is, the front row indoor temperature when the driver (and the rear seat users) get in the vehicle.

[0049] Specifically, the process mainly includes: based on the initial indoor temperature when the driver turns on the air conditioner in advance, the front air-conditioning temperature and the length of time he or she gets on the vehicle, determining the heat value consumed by the air-conditioning system after the front air-conditioning temperature has been used for the length of time he or she gets on the vehicle; based on the heat value and the initial indoor temperature, determining the front indoor temperature when the driver gets on the vehicle.

[0050] In this embodiment, the heat value consumed by the air conditioning system after the boarding time according to the front air conditioning temperature can be calculated by the following formula: :

[0051] in, Indicates the length of time on board. Indicates the quality of the air inside the car. is the specific heat capacity of air, Indicates the temperature difference between the initial indoor temperature when the driver turns on the air conditioner in advance and the set front air conditioner temperature.

[0052] It is easy to understand that this part of heat is the heat absorbed (or released) when the initial indoor temperature drops (or rises) to the front indoor temperature when the driver gets on the car. Reversely calculate the front row interior temperature when the driver gets on the car, the calculation formula is as follows:

[0053]

[0054] in, is the Stefan-Boltzmann constant, which is approximately 5.67×10-8 watt-meter -2 Kelvin -4 , represents the dielectric constant of vacuum, which is approximately 8.85×10 -12 FA / m, represents pi, Indicates absolute temperature, which refers to the initial indoor temperature when the driver turns on the air conditioner in advance Front seat interior temperature when the driver gets in the car The temperature difference in Kelvin (K) is Indicates the initial indoor temperature when the driver turns on the air conditioner in advance. The front interior temperature when the driver gets in the vehicle.

[0055] Therefore, based on the principle of thermal radiation, the front row indoor temperature of the vehicle can be determined after the air-conditioning system has been running according to the front row air-conditioning temperature for the length of time that the vehicle is in the vehicle.

[0056] S201-3: Determine the current rear row indoor temperature based on the front row indoor temperature and the heat conduction temperature difference between the front and rear rows of the vehicle.

[0057] In this embodiment, according to the principle of heat conduction, there is a certain temperature difference between the front and rear seats of the vehicle:

[0058] in, It represents the heat conduction temperature difference between the front and rear rows of the vehicle, h represents the thermal conductivity of the seat material, L represents the seat length, k represents the thermal conductivity of the seat material, and d represents the seat thickness.

[0059] Therefore, according to the front room temperature , and the heat conduction temperature difference between the front and rear rows of the vehicle , the current rear room temperature can be determined : .

[0060] In this embodiment, the front row indoor temperature when the driver gets on the vehicle is calculated based on the principle of heat radiation when the driver turns on the air conditioner in advance, and the rear row indoor temperature when the rear row user gets on the vehicle is determined based on the heat conduction temperature difference between the front and rear rows of the vehicle. Compared with the method of directly detecting through the temperature sensor, the calculated rear row indoor temperature will be more accurate, which is conducive to the subsequent prediction of the number of adjustments for the rear row target user.

[0061] S202: Identify a target user among the rear-seat users, and determine a target indoor temperature preferred by the target user.

[0062] In this implementation, the target indoor temperature preferred by the target user can be determined by pre-collecting the historical air-conditioning usage data of the target user under different circumstances and analyzing the air-conditioning setting habits of the target user.

[0063] In specific implementation, the target user's PMV predicted mean vote model (Predicted Mean Vote) can be established to quantify the target user's perception of thermal comfort and to visualize the target user's air conditioning setting habits. The process mainly includes: S202-1: Determine the target indoor temperature preferred by the target user based on the stable air-conditioning temperature after the target user last adjusted the air-conditioning panel under different test environments.

[0064] In this embodiment, different test environments refer to different scenarios under the influence of factors such as different outside temperature, inside temperature, and user's body surface temperature. Considering that the target user may adjust the air-conditioning temperature in stages after getting in the car, for example, in the first stage after getting in the car, the temperature adjustment button may be pressed several times to set the temperature lower (in hot scenes) to lower the temperature in the car as soon as possible. In the second stage, after the temperature in the car drops, the target user may feel cold, so he may press the temperature adjustment button again to adjust the air-conditioning temperature back to a state where he feels comfortable. That is, the target user may actually adjust the air-conditioning temperature in multiple rounds. Therefore, the stable air-conditioning temperature after the target user adjusts the air-conditioning panel for the last time is the target indoor temperature preferred by the target user, which represents the target user's real temperature setting habits. Among them, the stable air-conditioning temperature after the target user adjusts the air-conditioning panel for the last time refers to the air-conditioning temperature after the target user presses the temperature adjustment button for the last round.

[0065] S202-2: Based on the target indoor temperature, determine the thermal comfort evaluation index value corresponding to the target user.

[0066] Furthermore, by calculating the target user's thermal comfort evaluation index value, the temperature setting habits of the target user are quantified. The thermal comfort evaluation index value is used to characterize the target user's perception of thermal comfort.

[0067] Specifically, thermal comfort evaluation index value The calculation method is as follows:

[0068] Wherein, M represents the metabolic rate of a person (unit: W / s). The metabolic rate of a person during slight activity is 2-3.4 Met (1 Met = 58 W / ms). The range for calculation is 116-197.258 W / ms. W represents the work done by the person (unit: W / s). In this embodiment, it is taken as 0. Indicates the partial pressure of water vapor in ambient air (unit: Pa); represents the air temperature (unit: °C), which in this embodiment is the above-mentioned stable air-conditioning temperature; It represents the ratio of the surface area of ​​the clothed body to the naked body; Indicates the average temperature of the outer surface of the clothed body (unit: °C); Indicates the average radiation temperature (unit: °C). Since the application scenario of this application is mainly in the car cabin, it does not involve the inner surface area and inner surface temperature of the room enclosure structure, so this parameter is set to 0; Indicates the convection heat transfer coefficient (unit: W / s·ms·℃).

[0069] Furthermore, since the air conditioning design specification requires that the indoor wind speed v in winter is less than 0.15m / s and the wind speed v in summer is less than 0.25m / s, the wind speed v=0.15m / s is used in winter conditions and the wind speed v=0.25m / s is used in summer conditions. Where v is the relative velocity of the air. On this basis, the thermal sensation label of the target user can be determined according to the calculated PMV value.

[0070] Exemplarily, the thermal sensation grading standard is shown in Table 1 below: Table 1 Thermal sensation levels

[0071] For example, in a certain test, the thermal comfort evaluation index value of the target user is calculated by the above method: If the value is -0.8, the thermal sensation label of the target user in this test is slightly cool.

[0072] After so many tests, you will eventually find a target user The values ​​will approach the same thermal sensation label. Therefore, The value is determined as the thermal comfort evaluation index value that finally corresponds to the target user, thereby establishing a corresponding relationship between the target indoor temperature preferred by the target user and its thermal comfort evaluation index value, which is used for the subsequent calculation of the target indoor temperature preferred by the target user in the actual scenario.

[0073] Specifically: obtaining a thermal comfort evaluation index value corresponding to a target user; and determining a target indoor temperature preferred by the target user based on the thermal comfort evaluation index value.

[0074] When applied, the thermal comfort evaluation index value corresponding to the target user can be directly obtained, and then the thermal comfort evaluation index value is substituted into the above The target indoor temperature preferred by the target user is deduced by combining the required related parameters into the value calculation formula.

[0075] S203: Determine the predicted adjustment times of the target user based on the target indoor temperature, the current rear indoor temperature, and the current body surface temperature of the target user.

[0076] In this embodiment, the predicted adjustment times refer to the predicted cumulative times that the target user presses the temperature adjustment button on the rear air conditioning panel, which can be understood as the number of times the user may press the temperature adjustment button in the current scenario, that is, the number of consecutive presses. Specifically, the process mainly includes: S203-1: Based on the current vehicle interior temperature, the current air-conditioning temperature, the current body surface temperature of the target user and the preset target body surface temperature, determine the current body surface temperature adjustment time required for the target user's body temperature to reach the target body surface temperature from the current body surface temperature.

[0077] In this embodiment, the current vehicle interior temperature refers to the temperature of the entire vehicle interior when the user gets on the vehicle, the current air-conditioning temperature refers to the set temperature of the air-conditioning when the user gets on the vehicle, the current body surface temperature refers to the body surface temperature of the user when the user gets on the vehicle, and the target body surface temperature refers to the body surface temperature that the user feels comfortable with. For example, the target body surface temperature can be preset to 36°C.

[0078] Among them, since there is a temperature difference between the front and rear rows of the vehicle, the average value of the current front row indoor temperature and the current rear row indoor temperature can be determined as the current whole vehicle indoor temperature to improve accuracy.

[0079] Specifically, the current body surface temperature adjustment time required for the target user's body temperature to reach the target body surface temperature from the current body surface temperature can be calculated according to the following heat formula: :

[0080] in, Indicates heat, Indicates the current body surface temperature adjustment time. is the thermal conductivity of air, Represents the surface area of ​​human skin. represents the thermal conductivity of the skin, Indicates the temperature difference between the current body surface temperature of the target user and the preset target body surface temperature. Represents the thermal conductivity of the human body, Indicates the current vehicle interior temperature. Indicates the current air conditioning temperature. represents the heat dissipation coefficient of the human body, Represents the evaporative heat dissipation coefficient of the human body.

[0081] Therefore, by substituting the current vehicle interior temperature, the current air-conditioning temperature, the current body surface temperature of the target user, the preset target body surface temperature, and related parameters into the above formula, the time required for the target user's body temperature to reach the target body surface temperature from the current body surface temperature can be determined, that is, the current body surface temperature adjustment time.

[0082] S203-2: Determine the predicted number of adjustments of the target user based on the current body surface temperature adjustment duration, the temperature difference between the target indoor temperature and the current rear indoor temperature, and the air conditioning adjustment habits of the target user.

[0083] The air conditioning adjustment habit is used to characterize the corresponding relationship between the temperature difference, the body surface temperature adjustment time and the number of adjustments. Specifically, the establishment of the target user's air conditioning adjustment habit includes the following steps: S203-2-1: Based on the historical vehicle interior temperature, the historical first air-conditioning temperature, the historical body surface temperature of the target user and the target body surface temperature when the target user gets on the vehicle under different test environments, determine the historical body surface temperature adjustment time required for the target user's body temperature to reach the target body surface temperature from the historical body surface temperature.

[0084] Please refer to the above step S203 - 1 for the calculation method of this process, which will not be repeated here.

[0085] S203-2-2: Obtain the historical second air-conditioning temperature after the target user adjusts the air-conditioning panel.

[0086] Among them, the historical second air-conditioning temperature refers to the air-conditioning setting temperature obtained by the target user after getting in the car by pressing the temperature adjustment button on the rear air-conditioning panel.

[0087] S203-2-3: Based on the temperature difference between the historical rear indoor temperature and the historical second air-conditioning temperature when the target user gets on the vehicle, the historical body surface temperature adjustment time, and the historical number of times the target user presses the temperature adjustment button within the historical body surface temperature adjustment time, obtain sample data corresponding to the target user.

[0088] Among them, the sample data of the target user is formed by recording the temperature difference between the historical rear indoor temperature and the historical second air-conditioning temperature when the target user gets on the car, the historical body surface temperature adjustment time, and the historical number of times the target user presses the temperature adjustment button within the historical body surface temperature adjustment time.

[0089] For example, some sample data are shown in Table 2 below: Indicates the historical body surface temperature regulation time, Indicates the temperature difference between the historical rear indoor temperature and the historical second air conditioning temperature when the target user gets on the car. In addition to the data in the first row and the first column in the table, the rest records the historical adjustment times of the target user pressing the temperature adjustment button within the historical skin temperature adjustment time.

[0090] Table 2 Sample data

[0091] S203-2-4: Perform cluster analysis on the sample data to obtain the air conditioning adjustment habits of the target users.

[0092] After collecting enough sample data, the xy coordinate system can be established with the historical body temperature adjustment time as the x-axis and the temperature difference as the y-axis, and points can be plotted based on the historical adjustment times. Then, similar points can be classified through a clustering mathematical algorithm to construct the air conditioning adjustment habits of the target user. Specifically, the clustering analysis method belongs to the prior art and will not be elaborated here.

[0093] In this embodiment, the target user's historical adjustment data is collected and the user's air-conditioning usage habits are analyzed, and then the target user's air-conditioning adjustment habits are established, and the corresponding relationship between the temperature difference, the body surface temperature adjustment time and the number of adjustments is obtained, which is used for subsequent prediction of the target user's adjustment times.

[0094] S204: Determine a target duration of the target timer according to the predicted number of adjustments.

[0095] The process of determining the target duration is described in step S103 above and will not be described in detail here.

[0096] Please refer to Figure 3 Based on the same inventive concept, the second aspect of the embodiment of the present application provides a control device for a rear air conditioner panel timer, and the control device 300 for the rear air conditioner panel timer includes: The target temperature determination module 301 is used to determine the target indoor temperature preferred by the target user in the back row; The adjustment number prediction module 302 is used to determine the predicted adjustment number of the target user based on the target indoor temperature, the current rear indoor temperature, and the current body surface temperature of the target user; wherein the predicted adjustment number refers to the predicted cumulative number of times the target user presses the temperature adjustment button on the rear air conditioning panel; The target duration determination module 303 is used to determine the target duration of the target timer based on the predicted number of adjustments; wherein the target timer is configured to start timing when it is detected that the temperature adjustment button is pressed for the first time, and to restart timing when the timing duration has not reached the target duration and the temperature adjustment button is pressed again, so that when the timing duration reaches the target duration, the telematics control unit adjusts the temperature based on the actual cumulative number of times the temperature adjustment button is pressed and the unit, and controls the rear air-conditioning panel to display the target air-conditioning temperature.

[0097] Optionally, the target temperature determination module 301 includes: The thermal perception habit acquisition submodule is used to obtain the thermal comfort evaluation index value corresponding to the target user; the thermal comfort evaluation index value is used to characterize the target user's perception of thermal comfort; The target determination submodule is used to determine the target indoor temperature preferred by the target user based on the thermal comfort evaluation index value.

[0098] Optionally, the device further comprises: The target detection submodule is used to determine the target indoor temperature preferred by the target user based on the stable air-conditioning temperature after the target user last adjusted the air-conditioning panel under different test environments; The thermal perception habit generation submodule is used to determine the thermal comfort evaluation index value corresponding to the target user based on the target indoor temperature.

[0099] Optionally, the adjustment times prediction module 302 includes: The body surface temperature adjustment time determination submodule is used to determine the current body surface temperature adjustment time required for the target user's body temperature to reach the target body surface temperature from the current body surface temperature based on the current vehicle interior temperature, the current air conditioning temperature, the current body surface temperature of the target user and the preset target body surface temperature; The prediction submodule is used to determine the predicted adjustment times of the target user based on the current body surface temperature adjustment time, the temperature difference between the target indoor temperature and the current rear indoor temperature, and the target user's corresponding air conditioning adjustment habits; wherein the air conditioning adjustment habits are used to characterize the correspondence between the temperature difference, the body surface temperature adjustment time and the adjustment times.

[0100] Optionally, the device further comprises: The sample collection submodule is used to determine the historical body surface temperature adjustment time required for the target user's body temperature to reach the target body surface temperature from the historical body surface temperature based on the historical vehicle indoor temperature, the historical first air-conditioning temperature, the historical body surface temperature of the target user and the target body surface temperature under different test environments; obtain the historical second air-conditioning temperature after the target user adjusts the air-conditioning panel; obtain the sample data corresponding to the target user based on the temperature difference between the historical rear indoor temperature and the historical second air-conditioning temperature when the target user gets on the vehicle, the historical body surface temperature adjustment time, and the historical number of times the target user presses the temperature adjustment button within the historical body surface temperature adjustment time; The air conditioning adjustment habit generation submodule is used to perform cluster analysis on the sample data to obtain the air conditioning adjustment habits of the target users.

[0101] Optionally, the device further comprises: The front air conditioning temperature determination module is used to obtain the front air conditioning temperature preset by the driver when the driver turns on the air conditioning in advance, and determine the driver's boarding time; A front row indoor temperature determination module, used to determine the front row indoor temperature when the driver gets in the vehicle based on the front row air conditioning temperature and the length of time the driver gets in the vehicle; The current rear row indoor temperature determination module is used to determine the current rear row indoor temperature based on the front row indoor temperature and the heat conduction temperature difference between the front and rear rows of the vehicle.

[0102] Optionally, the front row indoor temperature determination module includes: The heat consumption determination submodule is used to determine the heat value consumed by the air conditioning system after the boarding time is executed according to the front row air conditioning temperature based on the initial indoor temperature when the driver turns on the air conditioning in advance, the front row air conditioning temperature and the boarding time; The front row indoor temperature calculation submodule is used to determine the front row indoor temperature when the driver gets on the vehicle based on the calorific value and the initial indoor temperature.

[0103] As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0104] On the third aspect, based on the same inventive concept, an embodiment of the present application provides a storage medium, which stores machine executable instructions. When the machine executable instructions are executed by a processor, the control method of the rear air-conditioning panel timer proposed in the first aspect of the present application is implemented.

[0105] It should be noted that the specific implementation of the storage medium in the embodiment of the present application refers to the specific implementation of the control method of the rear air-conditioning panel timer proposed in the first aspect of the embodiment of the present application, and will not be repeated here.

[0106] In the fourth aspect, based on the same inventive concept, refer to Figure 4 An embodiment of the present application provides a vehicle 400, including a processor 401 and a memory 402; the memory 402 stores machine executable instructions that can be executed by the processor 401, and the processor 401 is used to execute the machine executable instructions to implement the control method of the rear air conditioning panel timer proposed in the first aspect of the present application.

[0107] It should be noted that the specific implementation of the vehicle 400 in the embodiment of the present application refers to the specific implementation of the control method of the rear air-conditioning panel timer proposed in the first aspect of the embodiment of the present application, and will not be repeated here.

[0108] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0109] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, devices, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0110] The embodiments of the present application are described with reference to the flowcharts and / or block diagrams of the methods, terminal devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing terminal device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0111] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing terminal device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0112] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device so that a series of operating steps are executed on the computer or other programmable terminal device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable terminal device to implement the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0113] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present application.

[0114] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0115] The above is a detailed introduction to the control method, device, medium and vehicle for the rear air-conditioning panel timer provided by the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A method for controlling a timer of a rear air conditioner panel, characterized in that: The method comprises: Determine the target indoor temperature preferred by the target users in the rear row; Determine the predicted adjustment times of the target user based on the target indoor temperature, the current rear indoor temperature, and the current body surface temperature of the target user; wherein the predicted adjustment times refers to the predicted cumulative times that the target user presses the temperature adjustment button on the rear air conditioning panel; The target duration of the target timer is determined based on the predicted number of adjustments; wherein the target timer is configured to start timing when it is detected that the temperature adjustment button is pressed for the first time, and to restart timing when the timing duration has not reached the target duration and the temperature adjustment button is pressed again, so that when the timing duration reaches the target duration, the telematics control unit controls the rear air-conditioning panel to display the target air-conditioning temperature based on the actual cumulative number of times the temperature adjustment button is pressed and the unit temperature adjustment.

2. The method according to claim 1, characterized in that Determine the target indoor temperature preferred by the target user, including: Acquire a thermal comfort evaluation index value corresponding to the target user; the thermal comfort evaluation index value is used to characterize the target user's perception of thermal comfort; Based on the thermal comfort evaluation index value, a target indoor temperature preferred by the target user is determined.

3. The method according to claim 2, characterized in that The method further comprises: Determine the target indoor temperature preferred by the target user based on the stable air-conditioning temperature after the target user last adjusted the rear air-conditioning panel under different test environments; Based on the target indoor temperature, a thermal comfort evaluation index value corresponding to the target user is determined.

4. The method according to claim 1, characterized in that Determining the predicted adjustment times of the target user based on the target indoor temperature, the current rear indoor temperature, and the current body surface temperature of the target user includes: Based on the current vehicle interior temperature, the current air conditioning temperature, the current body surface temperature of the target user and a preset target body surface temperature, determining the current body surface temperature adjustment time required for the target user's body temperature to reach the target body surface temperature from the current body surface temperature; Based on the current body surface temperature adjustment time, the temperature difference between the target indoor temperature and the current rear indoor temperature, and the air conditioning adjustment habits corresponding to the target user, the predicted adjustment times of the target user are determined; wherein the air conditioning adjustment habits are used to characterize the correspondence between the temperature difference, the body surface temperature adjustment time and the adjustment times.

5. The method according to claim 4, characterized in that The method further comprises: Based on the historical vehicle interior temperature, the historical first air-conditioning temperature, the historical body surface temperature and the target body surface temperature of the target user when the target user gets on the vehicle under different test environments, determine the historical body surface temperature adjustment time required for the target user's body temperature to reach the target body surface temperature from the historical body surface temperature; Obtaining a historical second air-conditioning temperature after the target user adjusts the air-conditioning panel; Based on the temperature difference between the historical rear indoor temperature when the target user got on the vehicle and the historical second air-conditioning temperature, the historical body surface temperature adjustment duration, and the historical number of times the target user pressed the temperature adjustment button within the historical body surface temperature adjustment duration, sample data corresponding to the target user is obtained; Cluster analysis is performed on the sample data to obtain the air conditioning adjustment habits of the target user.

6. The method according to claim 1, characterized in that The method further comprises: When the driver turns on the air conditioner in advance, obtaining the front air conditioner temperature preset by the driver and determining the length of time the driver has been in the vehicle; Determining the front row indoor temperature when the driver gets in the vehicle based on the front row air conditioning temperature and the boarding time; The current rear row indoor temperature is determined based on the front row indoor temperature and the heat conduction temperature difference between the front and rear rows of the vehicle.

7. The method according to claim 6, characterized in that Determining the front row indoor temperature when the driver gets in the vehicle based on the front row air conditioning temperature and the boarding time includes: Based on the initial indoor temperature when the driver turns on the air conditioner in advance, the front row air conditioner temperature and the boarding time, determining the heat value consumed by the air conditioning system after executing the boarding time according to the front row air conditioner temperature; Based on the calorific value and the initial indoor temperature, the front row indoor temperature when the driver gets on the vehicle is determined.

8. A control device for a timer on a rear air conditioner panel, characterized in that: The device comprises: A target temperature determination module, used to determine a target indoor temperature preferred by a target user in the back row; An adjustment times prediction module, used to determine the predicted adjustment times of the target user based on the target indoor temperature, the current rear indoor temperature, and the current body surface temperature of the target user; wherein the predicted adjustment times refers to the predicted cumulative number of times the target user presses the temperature adjustment button on the rear air conditioning panel; A target duration determination module is used to determine the target duration of the target timer according to the predicted number of adjustments; wherein the target timer is configured to start timing when it is detected that the temperature adjustment button is pressed for the first time, and to restart timing when the timing duration has not reached the target duration and the temperature adjustment button is pressed again, so that the telematics control unit controls the rear air-conditioning panel to display the target air-conditioning temperature based on the actual cumulative number of times the temperature adjustment button is pressed and the unit adjustment temperature when the timing duration reaches the target duration.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the control method of the rear air conditioning panel timer as described in any one of claims 1 to 7 is implemented.

10. A vehicle, characterized in that: It comprises a processor and a memory; the memory stores machine executable instructions that can be executed by the processor, and the processor is used to execute the machine executable instructions to implement the control method of the rear air conditioning panel timer as described in any one of claims 1 to 7.

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