Vehicle comfort control method and device and storage medium

Abstract

The invention provides a vehicle comfort control method and device and a storage medium. Firstly, the target air outlet temperature of an air conditioner is determined; according to the human body comfort model, the radiation temperature when the fireplace or the seat is not started for heating is calculated, the thermal comfort evaluation index is calculated, the thermal comfort evaluation index is in the human body thermal comfort interval by adjusting the air conditioner outlet air temperature, and under the condition that the human body thermal comfort interval is maintained, the thermal comfort evaluation index is obtained. The corrected in-vehicle target head temperature after fireplace heating or seat heating is started is calculated based on the influence of heating of different gears of an in-vehicle fireplace or / and seats on the comfort degree of the human body, then the corrected air conditioner target air outlet temperature is determined, and the mapping relation between the different gears of the in-vehicle fireplace or seats and the corrected air conditioner target air outlet temperature is established. And the comfort level of the vehicle is controlled. Through cooperative control of the air conditioner and the fireplace or the seat, energy consumption of the air conditioner is reduced, and meanwhile the body surface temperature can be rapidly increased through fireplace heating or seat heating.

Description

Technical Field

[0001] The present invention belongs to the field of automobile technology, and in particular relates to a vehicle comfort control method, device and storage medium. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] With the rapid development of the automotive industry and the continuous improvement of people's living standards, the number of cars on the road is increasing. Because new energy vehicles (NEVs) must simultaneously heat the passenger compartment and battery in low-temperature environments, their actual range is poor and their overall energy consumption is high. Therefore, energy consumption control has become a key breakthrough area in thermal management, and auxiliary passenger compartment heating technology has attracted increasing attention.

[0004] Current passenger cabin auxiliary heating technologies include air conditioning heating, fireplace heating, and seat heating. The air conditioning system regulates the temperature of the entire cabin through the work of the compressor. The air conditioning system requires a certain amount of time to raise the cabin to a relatively suitable base temperature, which delays meeting the user's temperature needs and consumes relatively high energy. Fireplace heating is a technology that uses graphene film heating. It mainly generates a local heat source, with a fast heating rate and uniform temperature distribution, but the heat transfer efficiency is limited and there may be heat energy loss. Seat heating uses electric heating elements to heat the seat locally. It consumes relatively little energy, but the heating range is limited. It can be seen that air conditioning heating, fireplace heating, and seat heating are complementary in terms of user experience such as the heating time required, heating range, and energy consumption.

[0005] Currently, the air conditioning, fireplace, and seat heating systems in vehicles operate independently, each adjusted by the user or based on environmental sensing. However, different people perceive temperature in a complex way. Different parts of the body have different temperature sensitivities, and people's expectations of cabin temperature vary from person to person. Using a unified heating standard cannot meet the comfort requirements of different people. Furthermore, separate control of air conditioning, fireplace, and seat heating can lead to system conflicts or safety hazards. For example, when the air conditioning system is operating at full cooling, the fireplace may activate due to local low temperatures. Without coordinated management, this can cause a mixture of hot and cold, which not only reduces the service life of the air conditioning and fireplace, but also may cause discomfort to passengers due to the rapid temperature fluctuations.

[0006] Therefore, how to effectively combine air conditioning heating, seat heating and fireplace heating to complete passenger cabin comfort control through a unified strategy in different scenarios is a problem that needs to be solved at present. Summary of the Invention

[0007] In order to overcome the shortcomings of the above-mentioned prior art, the present invention provides a vehicle comfort control method, device and storage medium. Through the coordinated control of the air conditioner and the fireplace or seat, the air conditioning energy consumption is reduced. At the same time, the fireplace heating or seat heating can also quickly increase the body surface temperature, thereby optimizing the thermal comfort experience of the passenger compartment.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions: In one aspect, the present invention provides a vehicle comfort control method, the method comprising: Determine the target air outlet temperature of the air conditioner based on the external ambient temperature, sunlight intensity and target head temperature inside the vehicle; Based on the initial target head temperature in the vehicle and the radiant temperature when the fireplace and seat heating are turned off, a thermal comfort evaluation index is calculated based on the human comfort model. The air outlet temperature of the air conditioner is adjusted to keep the thermal comfort evaluation index within the human thermal comfort range. Based on the impact of the in-vehicle fireplace and / or different seat heating settings on human comfort, and provided that the thermal comfort evaluation index is within the human thermal comfort range, a revised in-vehicle target head temperature is calculated according to the human comfort model; Calibration measurement is performed based on the corrected target head temperature in the vehicle to obtain the corrected target air outlet temperature of the air conditioner. A mapping relationship is established between the corrected target air outlet temperature of the air conditioner and the corresponding fireplace and / or seat heating at different gears in the vehicle to control the comfort of the vehicle.

[0009] In another aspect, the present invention provides a vehicle comfort control device, comprising: a determination module for determining a target air outlet temperature of the air conditioner based on different vehicle external ambient temperatures, sunlight intensity, and target head temperature inside the vehicle; The air conditioning control module is used to calculate the thermal comfort evaluation index based on the initial target head temperature in the vehicle and the radiant temperature when the fireplace and seat heating are not turned on, based on the human comfort model, and adjust the air conditioning outlet temperature to keep the thermal comfort evaluation index within the human thermal comfort range; a calculation module configured to calculate a revised target head temperature in the vehicle based on the human comfort model, based on the effect of the vehicle fireplace and / or different heating gears of the seat on human comfort, while satisfying the thermal comfort evaluation index and being within the human thermal comfort range; The control module is used to perform calibration measurement based on the corrected target head temperature in the vehicle to obtain the corrected target air outlet temperature of the air conditioner. A mapping relationship is established between the corrected target air outlet temperature of the air conditioner and the corresponding fireplace and / or seat heating at different gears in the vehicle to control the comfort of the vehicle.

[0010] On the other hand, a non-transitory computer-readable storage medium is also provided, characterized in that a computer program is stored in the computer-readable storage medium, and the computer program is loaded and executed by a processor to implement any of the above-mentioned vehicle ventilation control methods.

[0011] On the other hand, a computer program product is also provided, which includes computer instructions, and when the computer instructions are executed by a processor, the steps of any of the above-mentioned vehicle ventilation control methods are implemented.

[0012] One or more of the above technical solutions have the following beneficial effects: The present invention determines the target air outlet temperature of the air conditioner based on different vehicle external ambient temperatures, sunlight intensity, and target head temperature in the vehicle. Based on a human comfort model, the radiant temperature when the fireplace or seat heating is not turned on is calculated, and a thermal comfort evaluation index is calculated. The air outlet temperature of the air conditioner is adjusted to keep the thermal comfort evaluation index within the human thermal comfort range. While maintaining the human thermal comfort range, the revised target head temperature in the vehicle after the fireplace heating or seat heating is turned on is calculated based on the impact of different heating gears of the vehicle fireplace or seat on human comfort. The revised target air outlet temperature of the air conditioner is then determined, and a mapping relationship between different gears of the vehicle fireplace or seat and the revised target air outlet temperature of the air conditioner is established to achieve vehicle comfort control. The present invention determines the human thermal comfort range based on the human comfort model. Through the coordinated control of the air conditioner and the fireplace or seat, while reducing air conditioning energy consumption, fireplace heating or seat heating can also quickly increase body surface temperature. The coordination between the air conditioner and the fireplace or seat can be adaptively adjusted according to the user's state. Furthermore, fireplace heating and seat heating do not rely on airflow, avoiding dryness or discomfort caused by direct air conditioning, making it more user-friendly for users with sensitive respiratory tracts.

[0013] The present invention constructs a mapping relationship between different gears of the fireplace or seat in the car and the corrected target air outlet temperature of the air conditioner, and sets different control strategies for different scenarios. It can achieve optimal gear control in different environments, improve heating efficiency and reduce energy consumption.

[0014] Advantages of additional aspects of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0016] Figure 1 This is a flow chart of a vehicle comfort control method according to an embodiment of the present invention; Figure 2 This is the control strategy for the EV and REEV models in pure electric mode in the embodiment of the present invention; Figure 3 This is the control strategy for the REEV vehicle in the waste heat utilization mode in the embodiment of the present invention; Figure 4 This is the control strategy when the air conditioner is not turned on or in manual air conditioner mode in the embodiment of the present invention; Figure 5 Schematic diagram of a vehicle comfort control device in an embodiment of the present invention; Figure 6 This is a block diagram of the seat heating and leg heating parts in an embodiment of the present invention. DETAILED DESCRIPTION

[0017] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention belongs.

[0018] It should be noted that the terms used herein are for describing particular embodiments only and are not intended to limit the exemplary embodiments according to the present invention.

[0019] In the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0020] like Figure 1 As shown, this embodiment proposes a vehicle comfort control method, including: Step 101: determining a target air outlet temperature of the air conditioner based on different vehicle external ambient temperatures, sunlight intensity, and target head temperature inside the vehicle; Step 102: Based on the initial target head temperature in the vehicle and the radiant temperature when the fireplace and seat heating are not turned on, a thermal comfort evaluation index is calculated based on the human comfort model. The air outlet temperature of the air conditioner is adjusted to keep the thermal comfort evaluation index within the human thermal comfort range. Step 103: Based on the impact of the in-vehicle fireplace and / or different heating gears of the seat on human comfort, and provided that the thermal comfort evaluation index is within the human thermal comfort range, a revised in-vehicle target head temperature is calculated according to the human comfort model; Step 104: Calibrate and measure the corrected target head temperature in the vehicle to obtain a corrected target air outlet temperature for the air conditioner. A mapping relationship is established between the corrected target air outlet temperature for the air conditioner and the corresponding fireplace and / or seat heating at different gears in the vehicle to control the comfort of the vehicle.

[0021] This embodiment determines the target air outlet temperature of the air conditioner based on the different vehicle external ambient temperatures, sunlight intensity, and target head temperature inside the vehicle. Based on the human comfort model, the radiant temperature when the fireplace or seat heating is not turned on is calculated, and a thermal comfort evaluation index is calculated. The thermal comfort evaluation index is adjusted by the air conditioner outlet temperature to be within the human thermal comfort range. While maintaining the human thermal comfort range, the revised target head temperature inside the vehicle after turning on the fireplace heating or seat heating is calculated based on the impact of different heating gears of the fireplace or seat on human comfort. The revised target air outlet temperature of the air conditioner is then determined, and a mapping relationship between different gears of the fireplace or seat inside the vehicle and the revised target air outlet temperature of the air conditioner is established to achieve control of vehicle comfort. The present invention reduces air conditioning energy consumption through coordinated control of the air conditioner and the fireplace or seat. Fireplace heating or seat heating can also quickly increase body surface temperature. Furthermore, fireplace heating and seat heating do not rely on airflow, avoiding dryness or discomfort caused by direct air conditioning, making them more user-friendly for users with sensitive respiratory tracts.

[0022] In step 101 , the target air outlet temperature of the air conditioner is determined based on different vehicle external ambient temperatures, sunlight intensities, and target head temperatures inside the vehicle.

[0023] In one possible implementation, the target head temperature at different ambient temperatures is determined based on actual vehicle calibration experience and human thermal comfort requirements. There are slight differences between different OEMs, and the basic value can be found in Table 1 (air conditioning setting AUTO 22°C).

[0024] Table 1:

[0025] In one possible implementation, the target air outlet temperature of the air conditioner = static target air outlet temperature + sunlight intensity compensation value + cabin temperature difference compensation value + driver and passenger air outlet temperature difference compensation value + vehicle speed compensation value + fireplace (seat) heating compensation value.

[0026] The static target air outlet temperature is determined by actual vehicle calibration based on the ambient temperature and target head temperature, as shown in Table 2 (the air conditioner is set to AUTO 22°C). The compensation values are calibrated according to different vehicle models.

[0027] Table 2:

[0028] For example, different vehicle models such as sedans, SUVs, new energy vehicles, and high-end models may have significantly different calibration logic and parameters due to differences in space layout, heat source distribution, and energy consumption strategies.

[0029] For sedans, due to their compact space, small glass area, close distance between the driver and the front passenger, they are usually equipped with dual-zone air conditioning as standard. The compensation values for each can be: Sunlight intensity compensation value: The front windshield has a large inclination angle, and the sunlight directly hits the driver's head in summer. The compensation value is set to: +1℃~+3℃; in winter, the sunlight incident angle is low, and the compensation value can be set to: 0.5℃~10℃.

[0030] Compensation value for the difference in air temperature between the driver and passenger side: Dual-zone air conditioning supports independent settings, compensation value range: the difference in air temperature between the driver and passenger side should be 1 / 16, which needs to be calibrated.

[0031] Vehicle speed compensation value: When a fuel vehicle is driving at high speed, the engine heat dissipation increases and the condenser efficiency is improved. The compensation value during cooling is: -0.5℃~-1℃; electric vehicles have no such effect and the compensation value is close to 0.

[0032] Seat heating compensation value: When seat heating is turned on, the air conditioning heating load is reduced, and the air outlet temperature compensation value is: -1℃~-2℃.

[0033] For SUVs, due to their large space, large glass area, and the distance between the rear seats and the air-conditioning vents, they may be equipped with four-zone air conditioning. The compensation values can be: Sunlight intensity compensation value: The panoramic sunroof causes strong radiation from the top of the rear row, so the compensation value in summer is: +2℃~+4℃; in winter, the snow on the roof reflects sunlight, so the compensation value can be ignored or slightly negative, such as -0.5℃.

[0034] Cabin temperature difference compensation value: The temperature difference between the front and rear rows can reach 3℃~5℃, and the compensation value is set to: +1℃~+3℃.

[0035] Compensation value for the difference in air outlet temperature between the driver and co-driver seats: Four-zone air conditioning supports independent adjustment of the driver, co-driver, and rear seats, and the compensation value range is expanded to: -3℃~+3℃.

[0036] Vehicle speed compensation value: The tall vehicle body leads to large wind resistance at high speeds, and the air intake volume of the air conditioner is unstable. The compensation value during cooling is: -1℃~-1.5℃.

[0037] Seat heating compensation value: When the third row seats are heated, the rear air conditioning outlet temperature compensation is: -1.5℃~-2.5℃.

[0038] For new energy vehicles, since there is no engine waste heat, heating relies on PTC or heat pumps, which are energy-sensitive. They are highly intelligent and support scenario-based temperature control. The compensation values can be: Sunlight intensity compensation value: To reduce energy consumption, priority is given to weakening radiation through sunshades or skylight coatings. The compensation value range is narrowed. When cooling: +1℃~+2℃, avoid excessive use of the compressor.

[0039] Cabin temperature difference compensation value: The flat chassis design makes the air duct layout more uniform, the temperature difference between the front and rear rows is ≤1.5℃, and the compensation value is: ±0.3℃~0.5℃.

[0040] Compensation for the difference in air temperature between the passenger and front passenger seats: This compensation value is automatically adjusted through AI learning based on user habit data. For example, for female users, the passenger side temperature is often 1.5°C higher than the driver's side temperature.

[0041] Vehicle speed compensation value: When driving at high speed, the battery heat dissipation demand increases, and the air conditioner needs to take into account both passenger and battery cooling. The cooling compensation value is: -1℃~-1.5℃, but the maximum power of the compressor needs to be limited to prevent a sudden increase in energy consumption.

[0042] Seat heating compensation value: When the heat pump is heating, the seat heating efficiency is higher than that of air conditioning, and the compensation value is: -2℃~-3℃.

[0043] For high-end luxury models, which are equipped with air suspension, fragrance system, multi-zone independent air conditioning, and focus on ultimate comfort and personalization, the compensation values can be: Sunlight intensity compensation value: Double-layer soundproof glass is used, and the radiation impact is small. The compensation value is: ±0.5℃~1℃, but manual fine adjustment such as 0.1℃ step is supported.

[0044] Cabin temperature difference compensation value: four-zone air conditioning + independent rear air outlet, the compensation value is set individually according to the occupant position (such as the left rear boss seat), and the error is ≤0.8℃.

[0045] Compensation value for the difference in air outlet temperature between the driver and passenger seats: supports "business mode", with the driver seat temperature 2°C lower to keep you focused, and the passenger seat temperature 1°C higher to improve comfort. The compensation value is fixed at: -2°C / +1°C.

[0046] Vehicle speed compensation value: When the air suspension adjusts the vehicle body posture, the change in the air inlet position affects the air volume. The compensation value is: ±0.3℃.

[0047] Seat heating compensation value: When used with the massage function, blood flow in the heated area is accelerated, and the compensation value is -1.5°C.

[0048] In step 102, based on the initial target head temperature in the vehicle and the radiant temperature when the fireplace and seat heating are not turned on, a thermal comfort evaluation index is calculated based on the human comfort model, and the air outlet temperature of the air conditioner is adjusted to ensure that the thermal comfort evaluation index is within the human thermal comfort range.

[0049] In one possible implementation, a PMV-PDD human thermal comfort model is constructed:

[0050]

[0051] in, is the metabolic level of the human body; is the effective mechanical power; is the water vapor pressure; is the air temperature; is the surface temperature of the clothing; is the convective heat transfer coefficient; is the clothing surface area coefficient.

[0052] The constructed human comfort model is used to study the effects of different factors on human thermal comfort, such as air temperature, radiation temperature, clothing thermal resistance coefficient, human metabolic rate, wind speed, relative humidity, etc.

[0053] The comfort levels corresponding to the PMV values are shown in Table 3.

[0054] Table 3:

[0055] This embodiment mainly studies the impact of air temperature and radiation temperature on the PMV value. After determining the target head temperature under different environments as described above, the target air outlet temperature is determined through actual vehicle calibration, and the PMV value is calculated. The PMV is corrected to generally be within the range of [-1, 1].

[0056] For example, the current vehicle external ambient temperature is -20°C, and the target head temperature is 22°C. Based on the determined target head temperature, the corresponding static target air outlet temperature is determined through the actual vehicle calibration table, such as a static target air outlet temperature of 48°C. Dynamic compensation is then performed, that is, real-time parameters such as sunlight intensity, cabin temperature difference, and vehicle speed are superimposed to calculate the final target air outlet temperature.

[0057] In the baseline state without the fireplace or seat heating turned on, the actual radiant temperature in the car is measured, and the thermal comfort index is calculated by combining the target head temperature, humidity, wind speed and other parameters into the PMV-PDD human thermal comfort model. If the calculated PMV value exceeds the range of [-1, 1], for example, PMV = -1.5, indicating "cool", the air outlet temperature of the air conditioner is adjusted, such as increasing the supply air temperature or the air volume. Through iterative calibration, the PMV value is stabilized in the comfortable range ([-1, 1]).

[0058] This embodiment, when heating compensation is disabled, first verifies whether the air conditioning system can independently meet comfort requirements (PMV∈[-1,1]). If not, the air conditioning control strategy is prioritized for optimization. Subsequently, when fireplace / seat heating is enabled, the effect of heating on comfort can be precisely quantified by comparing changes in PMV values. When heating increases radiant temperature or body surface temperature, the system can reduce the air conditioning load while maintaining the same PMV value, replacing air conditioning with local heating, ultimately achieving synergistic optimization of energy efficiency and comfort.

[0059] In step 103, based on the impact of the in-vehicle fireplace and / or different heating gears of the seat on human comfort, and while the thermal comfort evaluation index is within the human thermal comfort range, a corrected in-vehicle target head temperature is calculated according to the human comfort model.

[0060] In one possible implementation, after determining that the comfortable PMV value is met, the fireplace or seat heating is turned on at different levels, and the new radiation temperature is remeasured and calculated. On the premise that the same PMV value is met, the corrected target head temperature is calculated based on the new radiation temperature, and then the corrected air conditioning target outlet temperature is obtained through calibration measurement.

[0061] For example, the new radiation temperature is calculated according to the fireplace or seat heating corresponding to different gears, and the calculated new radiation temperature is substituted into the PMV-PDD human thermal comfort model. Under the condition of achieving the same PMV value, the corrected target head temperature is obtained by reverse deduction.

[0062] In step 104, a calibration measurement is performed based on the corrected target head temperature in the vehicle to obtain a corrected target air outlet temperature of the air conditioner. A mapping relationship is established between the corrected target air outlet temperature of the air conditioner and the corresponding in-vehicle fireplace and / or different heating gears of the seat to control the comfort of the vehicle.

[0063] In one possible implementation, Figure 2 As shown, turn on Auto air conditioning. For EV and REEV models in pure electric mode, a correspondence is established between the revised air conditioning target outlet temperature and the corresponding in-car fireplace or seat heating in different gears to control the vehicle's comfort level, including: Step 201: When the temperature inside the vehicle is lower than a first temperature, the third level heating of the fireplace is activated, the third level heating of the driver's seat is activated, and the target air outlet temperature of the air conditioner is lowered by a first temperature value; Step 202: When the temperature inside the vehicle is not less than the first temperature and not greater than the second temperature, the second level heating of the fireplace is activated, the second level heating of the driver's seat is activated, and the target air outlet temperature of the air conditioner is lowered by the first temperature value; Step 203: When the temperature inside the vehicle is not less than the second temperature and not greater than the third temperature, the first level heating of the fireplace is activated, the first level heating of the driver's seat is activated, and the target air outlet temperature of the air conditioner is lowered by a second temperature value; Step 204: When the temperature inside the vehicle is not less than the third temperature, the first level heating of the fireplace is turned on, the first level heating of the driver's seat is turned on, and the target air outlet temperature of the air conditioner is lowered by a second temperature value; wherein the first temperature value is less than the second temperature value.

[0064] For example, if the vehicle interior temperature is ≤ 0°C, the driver's fireplace heating level is requested to be Level 3, the driver's seat heating level is requested to be Level 3, and the air conditioning target outlet temperature is lowered by 2°C based on the fireplace NTC temperature drop; 0℃≤Interior temperature≤10℃, request driver's fireplace heating level = Level 2, request driver's seat heating level = Level 2, and the air conditioner's outlet temperature is lowered by 2℃ according to the fireplace NTC temperature drop target; If the interior temperature is 10°C ≤ 20°C (TBD), the driver's fireplace heating level is requested to be Level 1, the driver's seat heating level is requested to be Level 1, and the air conditioning outlet temperature is lowered by 3°C based on the fireplace NTC temperature drop target. If the vehicle interior temperature is ≥20°C, the driver's side fireplace heating level is requested to be Level 1, and the driver's side seat heating level is requested to be Level 1. The air conditioner will lower the target air outlet temperature by 3°C based on the fireplace NTC temperature.

[0065] In one possible implementation, Figure 3 As shown, turn on Auto air conditioning, REEV model waste heat utilization mode, and establish a corresponding relationship between the corrected air conditioning target air outlet temperature and the corresponding in-car fireplace or seat heating at different gears to control the vehicle's comfort level, including: Step 301: When the temperature inside the vehicle is lower than the first temperature, the third level heating of the fireplace is turned on, and the third level heating of the driver's seat is turned on; Step 302: When the temperature inside the vehicle is not less than the first temperature and not greater than the second temperature, the second level heating of the fireplace is turned on, and the second level heating of the driver's seat is turned on; Step 303: When the temperature inside the vehicle is not less than the second temperature and not greater than the third temperature, the first level heating of the fireplace is turned on, and the first level heating of the driver's seat is turned on; Step 303: When the temperature inside the vehicle is not less than the third temperature, the fireplace and the driver's seat heating are turned off.

[0066] For example, if the vehicle interior temperature is ≤0°C, the driver's side fireplace heating level is requested to be Level 3, and the driver's side seat heating level is requested to be Level 3; 0≤Interior temperature≤10℃, request driver's fireplace heating level = Level 2, request driver's seat heating level = Level 2; 10≤Interior temperature≤20℃, request driver's fireplace heating level = Level 1, request driver's seat heating level = Level 1; If the temperature inside the vehicle is ≥20℃, request the driver's fireplace heating level = OFF, and request the driver's seat heating level = OFF.

[0067] In one possible implementation, Figure 4 As shown, when the air conditioner is not turned on or in manual air conditioner mode, it can also include: Step 401: When the temperature inside the vehicle is lower than the first temperature, the third level heating of the fireplace is turned on, and the third level heating of the driver's seat is turned on; Step 402: When the temperature inside the vehicle is not less than the first temperature and not greater than the fourth temperature, the second level heating of the fireplace is turned on, and the second level heating of the driver's seat is turned on; Step 403: When the temperature inside the vehicle is not less than the fourth temperature and not greater than the fifth temperature, the first level heating of the fireplace is turned on, and the first level heating of the driver's seat is turned on; Step 404: When the temperature inside the vehicle is not less than the fourth temperature, the fireplace and the driver's seat heating are turned off.

[0068] For example, if the vehicle interior temperature is ≤0°C, the driver's side fireplace heating level is requested to be Level 3, and the driver's side seat heating level is requested to be Level 3; 0≤Interior temperature≤15℃, request driver's fireplace heating level = Level 2, request driver's seat heating level = Level 2; 15 ≤ vehicle interior temperature ≤ 25°C, request driver's fireplace heating level = Level 1, request driver's seat heating level = Level 1; If the temperature inside the vehicle is ≥25°C, request the driver's fireplace heating level = OFF, and request the driver's seat heating level = OFF.

[0069] This embodiment uses scenario-based control of the fireplace and seat heating to precisely match user needs and maximize energy efficiency. When the air conditioning is off or in manual mode, the vehicle interior temperature is used as a single variable, and the TMS (Thermal Management System) directly requests the corresponding heating level based on the temperature range to meet basic heating needs. In Auto Air Conditioning mode, for EV and REEV vehicles operating in pure electric mode, fireplace heating and air conditioning outlet temperature adjustment are combined, utilizing fireplace radiant heat to reduce the air conditioning heating load and energy consumption. Compared to Manual mode, this mode further subdivides the temperature range and dynamically adjusts the air conditioning outlet temperature compensation based on the fireplace NTC (negative temperature coefficient) temperature, achieving more refined control. In REEV vehicle waste heat utilization mode, the VDC controller requests the heating level based on the vehicle interior temperature, prioritizing engine waste heat to reduce pure electric power consumption. This embodiment integrates fireplace, seat heating, and air conditioning heating. In Auto Air Conditioning mode, the air conditioning outlet temperature is adjusted in real time based on the fireplace heating intensity, avoiding redundant heating and reducing battery energy consumption in pure electric vehicles. Differentiated strategies are developed to address the different power characteristics of EV and REEV vehicles, improving solution practicality and balancing comfort and energy consumption.

[0070] In this implementation, seat heating handles localized rapid temperature increases, while fireplace heating supplements mid-range heat loads. The air conditioning system only needs to maintain a base ambient temperature, reducing overall energy consumption by 30%-50%, particularly significantly improving electric vehicle range. In extremely cold environments, fireplace heating can serve as a backup heat source for the air conditioning heat pump, preventing heat pump failure due to low temperatures and reducing the burden on the battery.

[0071] The human body's temperature perception is contact-first. Seat heating directly raises body surface temperature, maintaining comfort even when the cabin temperature is low, reducing the need for air conditioning settings and further saving energy. Fireplace-style heating adjusts the temperature of the legs and feet, creating a balanced "cool head, warm feet" gradient.

[0072] In this implementation, fireplace heating and seat heating do not rely on airflow, avoiding dryness or discomfort caused by direct blowing of air conditioning, and are more friendly to users with sensitive respiratory tracts; in addition, seat heating can provide perceptible warmth within 30 seconds, fireplace heating outputs warm air in about 1-2 minutes, and the air conditioning heat pump or engine waste heat may take more than 5 minutes. The three work together to eliminate the "temperature window period" during the cold start phase.

[0073] In this implementation, even in the event of a system failure, such as a heat pump failure or battery shorting, seat heating and fireplace heating can still maintain basic comfort, enhancing vehicle usability in extreme environments. At temperatures below -30°C, where traditional heat pumps may fail completely, the fuel-fired fireplace heater can operate independently, ensuring safety requirements such as vehicle defrosting and maintaining a survivable cabin temperature.

[0074] This embodiment realizes multi-level thermal management of "contact rapid heating + air convection temperature control + global environmental control", which significantly surpasses a single system in the three dimensions of energy efficiency, comfort and reliability. like Figure 5 As shown, this embodiment also provides a vehicle comfort control device, including: a determination module for determining a target air outlet temperature of the air conditioner based on different vehicle external ambient temperatures, sunlight intensity, and target head temperature inside the vehicle; The air conditioning control module is used to calculate the thermal comfort evaluation index based on the initial target head temperature in the vehicle and the radiant temperature when the fireplace and seat heating are not turned on, based on the human comfort model, and adjust the air conditioning outlet temperature to keep the thermal comfort evaluation index within the human thermal comfort range; a calculation module configured to calculate a revised target head temperature in the vehicle based on the human comfort model, based on the effect of the vehicle fireplace and / or different heating gears of the seat on human comfort, while satisfying the thermal comfort evaluation index and being within the human thermal comfort range; The control module is used to perform calibration measurement based on the corrected target head temperature in the vehicle to obtain the corrected target air outlet temperature of the air conditioner. A mapping relationship is established between the corrected target air outlet temperature of the air conditioner and the corresponding fireplace and / or seat heating at different gears in the vehicle to control the comfort of the vehicle.

[0075] In further embodiments, there is also provided: A non-transitory computer-readable storage medium is used to store computer instructions, which, when executed by a processor, perform the method described in embodiment 1.

[0076] The method in Example 1 can be directly implemented as being executed by a hardware processor, or by a combination of hardware and software modules within the processor. The software module can be located in a storage medium well-established in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, or registers. The storage medium is located in the memory, and the processor reads the information in the memory and, in conjunction with its hardware, completes the steps of the above method. To avoid repetition, a detailed description is not given here.

[0077] A computer program product includes a computer program, and when the computer program is executed by a processor, the method described in embodiment 1 is implemented.

[0078] The present invention also provides at least one computer program product tangibly stored on a non-transitory computer-readable storage medium. The computer program product includes computer-executable instructions, such as instructions contained in program modules, which are executed in a device on a real or virtual processor of a target to perform the process / method described above. Generally, program modules include routines, programs, libraries, objects, classes, components, data structures, etc. that perform specific tasks or implement specific abstract data types. In various embodiments, the functionality of program modules can be combined or divided between program modules as needed. The machine-executable instructions for the program modules can be executed in local or distributed devices. In distributed devices, program modules can be located in local and remote storage media.

[0079] The computer program code for implementing the method of the present invention can be written in one or more programming languages. These computer program codes can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device so that when the program code is executed by the computer or other programmable data processing device, the functions / operations specified in the flow chart and / or block diagram are implemented. The program code can be executed entirely on a computer, partially on a computer, as an independent software package, partially on a computer and partially on a remote computer, or entirely on a remote computer or server.

[0080] In the context of the present invention, computer program code or related data can be carried by any appropriate carrier to enable a device, apparatus, or processor to perform the various processes and operations described above. Examples of carriers include signals, computer-readable media, and the like. Examples of signals include electrical, optical, radio, acoustic, or other forms of propagated signals, such as carrier waves, infrared signals, and the like.

[0081] Those skilled in the art will appreciate that the units and algorithm steps of the various examples described in conjunction with this embodiment can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0082] Although the above describes the specific embodiments of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without any creative work are still within the scope of protection of the present invention.

Claims

1. A vehicle comfort control method, characterized in that: include: Determine the target air outlet temperature of the air conditioner based on the external ambient temperature, sunlight intensity and target head temperature inside the vehicle; Based on the initial target head temperature in the vehicle and the radiant temperature when the fireplace and seat heating are turned off, a thermal comfort evaluation index is calculated based on the human comfort model. The air outlet temperature of the air conditioner is adjusted to keep the thermal comfort evaluation index within the human thermal comfort range. Based on the impact of the in-vehicle fireplace and / or different seat heating settings on human comfort, and provided that the thermal comfort evaluation index is within the human thermal comfort range, a revised in-vehicle target head temperature is calculated according to the human comfort model; Calibration measurement is performed based on the corrected target head temperature in the vehicle to obtain the corrected target air outlet temperature of the air conditioner. A mapping relationship is established between the corrected target air outlet temperature of the air conditioner and the corresponding fireplace and / or seat heating at different gears in the vehicle to control the comfort of the vehicle.

2. The vehicle comfort control method according to claim 1, characterized in that: The human comfort model is constructed according to air temperature, radiation temperature, clothing thermal resistance coefficient, human metabolic rate, wind speed and relative humidity.

3. The vehicle comfort control method according to claim 1, wherein: Based on the impact of the in-vehicle fireplace and / or seat heating at different gears on human comfort, and provided that the thermal comfort evaluation index is within the human thermal comfort range, the revised in-vehicle target head temperature is calculated according to the human comfort model, specifically: After turning on the fireplace or heating the seats at different levels, calculate the radiant temperature; When the thermal comfort evaluation index is satisfied and the temperature is within the human thermal comfort range, a corrected target head temperature is calculated based on the calculated radiation temperature according to the human comfort model.

4. The vehicle comfort control method according to claim 1, wherein: Based on the corrected target air outlet temperature of the air conditioner and the corresponding in-car fireplace or different heating levels of the seats, a corresponding relationship is established to control the vehicle's comfort level, including: For EV or REEV models in pure electric mode, when the vehicle interior temperature is lower than the first temperature, the third level heating of the fireplace and the third level heating of the driver's seat are activated, and the target air outlet temperature of the air conditioner is lowered by the first temperature value; When the temperature inside the vehicle is not less than the first temperature and not greater than the second temperature, the second level heating of the fireplace is turned on, the second level heating of the driver's seat is turned on, and the target air outlet temperature of the air conditioner is lowered by the first temperature value; When the temperature inside the vehicle is not less than the second temperature and not greater than the third temperature, the first level heating of the fireplace is turned on, the first level heating of the driver's seat is turned on, and the target air outlet temperature of the air conditioner is lowered by a second temperature value; When the temperature inside the vehicle is not less than the third temperature, the first level heating of the fireplace is turned on, the first level heating of the driver's seat is turned on, and the target air outlet temperature of the air conditioner is reduced by a second temperature value; wherein the first temperature value is less than the second temperature value.

5. The vehicle comfort control method according to claim 1, wherein: Based on the corrected target air outlet temperature of the air conditioner and the corresponding in-car fireplace or different heating gears of the seat, a corresponding relationship is established to control the vehicle's comfort level, including: For REEV models in waste heat utilization mode, when the vehicle interior temperature is lower than the first temperature, the third level heating of the fireplace is turned on, and the third level heating of the driver's seat is turned on; When the temperature inside the vehicle is not less than the first temperature and not greater than the second temperature, the second level heating of the fireplace is turned on, and the second level heating of the driver's seat is turned on; When the temperature inside the vehicle is not less than the second temperature and not greater than the third temperature, the first level heating of the fireplace is turned on and the first level heating of the driver's seat is turned on; When the temperature inside the vehicle is not less than the third temperature, the fireplace and the driver's seat heating are turned off.

6. The vehicle comfort control method according to claim 1, wherein: The method further includes: when the vehicle is in the air conditioning off mode or in the manual air conditioning mode, and when the temperature inside the vehicle is lower than the first temperature, activating the third level heating of the fireplace and the third level heating of the driver's seat; When the temperature inside the vehicle is not less than the first temperature and not greater than the fourth temperature, the second level heating of the fireplace is turned on, and the second level heating of the driver's seat is turned on; When the temperature inside the vehicle is not less than the fourth temperature and not greater than the fifth temperature, the first level heating of the fireplace is turned on and the first level heating of the driver's seat is turned on; When the temperature inside the vehicle is not less than the fourth temperature, the fireplace and the driver's seat heating are turned off.

7. The vehicle comfort control method according to claim 1, wherein: The air conditioning target outlet temperature is calculated based on the static target outlet temperature, sunlight intensity compensation value, cabin temperature difference compensation value, driver and passenger air outlet temperature difference compensation value, vehicle speed compensation value and fireplace or seat heating compensation value; the static target outlet temperature is determined by actual vehicle calibration based on the ambient temperature and target head temperature.

8. A vehicle comfort control device, characterized in that: include: a determination module for determining a target air outlet temperature of the air conditioner based on different vehicle external ambient temperatures, sunlight intensity, and target head temperature inside the vehicle; The air conditioning control module is used to calculate the thermal comfort evaluation index based on the initial target head temperature in the vehicle and the radiant temperature when the fireplace and seat heating are not turned on, based on the human comfort model, and adjust the air conditioning outlet temperature to keep the thermal comfort evaluation index within the human thermal comfort range; a calculation module configured to calculate a revised target head temperature in the vehicle based on the human comfort model, based on the effect of the vehicle fireplace and / or different heating gears of the seat on human comfort, while satisfying the thermal comfort evaluation index and being within the human thermal comfort range; The control module is used to perform calibration measurement based on the corrected target head temperature in the vehicle to obtain the corrected target air outlet temperature of the air conditioner. A mapping relationship is established between the corrected target air outlet temperature of the air conditioner and the corresponding fireplace and / or seat heating at different gears in the vehicle to control the comfort of the vehicle.

9. A computer program product, comprising computer instructions, wherein when the computer instructions are executed by a processor, the steps of the vehicle comfort control method according to any one of claims 1 to 7 are implemented.

10. A non-transitory computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, which is loaded and executed by a processor to implement the vehicle comfort control method according to any one of claims 1 to 7.

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