Full-automatic temperature control system and control method thereof

Abstract

The invention relates to a full-automatic temperature control system and a control method thereof. The full-automatic temperature control system can comprise an environment temperature sensor and a controller, wherein the environment temperature sensor is used for sensing environment temperature; the controller is configured to receive a set temperature of the air conditioning system by a user from the air conditioning system; receiving a sensed ambient temperature from an ambient temperature sensor; determining a control mode of the full-automatic temperature control system according to the received set temperature; according to the determined control mode of the full-automatic temperature control system, the control temperature is determined based on the set temperature, or the control temperature is determined based on the set temperature and the environment temperature; and the control temperature is determined as the target temperature of the air conditioning system, and the air conditioning system is controlled to operate to reach the target temperature.

Description

Technical Field

[0001] This invention relates to a fully automatic temperature control system and its control method, which can take into account the influence of ambient temperature on the operation of the air conditioning system and perform segmented control of the target temperature of the air conditioning system in different temperature ranges of the set temperature of the air conditioning system. Background Technology

[0002] The Fully Automatic Temperature Control (FATC) system for vehicles, as a subsystem of the vehicle's air conditioning system, can automatically adjust the target temperature T of the air conditioning system according to the user's set temperature. target And wind speed. Typically, air conditioning systems have LO and HI settings. When a user selects LO or HI, the air conditioning system will maximize cooling or heating of the vehicle interior, thus consuming a significant amount of energy. To avoid energy waste caused by selecting LO or HI and to improve the driving range of vehicles (especially electric vehicles), some vehicles have removed the LO and HI settings from their air conditioning systems.

[0003] Typically, fully automatic temperature control systems automatically adjust the target temperature T of the air conditioning system in the following manner. target And wind speed: Set the air conditioning system temperature T set Change in ΔT set Set to the temperature inside the car, T inside Change in ΔT inside Proportional, that is, △T set =k×△T inside Where k is a constant. For example, when the user sets the temperature T of the air conditioning system... set When the temperature changes by 2°C, the fully automatic temperature control system can automatically adjust the target temperature T of the air conditioning system. target And wind speed, causing the temperature T inside the car to inside The temperature changes by 3°C (when k is 1.5). Therefore, without the LO and HI settings on the air conditioning system, the interior temperature T is... inside The adjustment range is affected by the set temperature T of the air conditioning system. set The scope is limited.

[0004] The set temperature T of the air conditioning system set The range has an upper limit T upper (e.g., 27°C) and lower limit T lower (For example, 17°C). In environments with higher ambient temperatures, when the user sets the air conditioning system temperature T... set When the value is at the upper limit, the interior temperature T inside Subject to the set temperature T setThe upper limit of the temperature setting may limit the temperature to 28℃-29℃, preventing it from reaching higher temperatures; and in low ambient temperatures, when the user sets the air conditioning system to a temperature T... set When the value is the lower limit, the interior temperature T inside Subject to the set temperature T set The lower limit is limited, so it may only reach 15℃-16℃, and cannot reach lower temperatures.

[0005] Therefore, without LO and HI settings in the air conditioning system, the existing fully automatic temperature control system cannot achieve maximum heating or cooling of the vehicle interior.

[0006] The information contained in the background section of this invention is only intended to enhance the understanding of the general background of this invention and should not be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art. Summary of the Invention

[0007] The various aspects of the present invention are dedicated to solving the aforementioned problems in the prior art, and other technical problems not mentioned herein will be clearly understood by those skilled in the art through the following detailed description of the specification.

[0008] The purpose of this invention is to provide a fully automatic temperature control system and its control method, which can take into account the influence of ambient temperature and perform segmented control of the target temperature of the air conditioning system within different temperature ranges of the set temperature of the air conditioning system.

[0009] According to one aspect of the present invention, a fully automatic temperature control system may include: an ambient temperature sensor and a controller, the ambient temperature sensor being used to sense ambient temperature; the controller being configured to: receive a user's set temperature for the air conditioning system from the air conditioning system; receive the sensed ambient temperature from the ambient temperature sensor; determine a control mode of the fully automatic temperature control system based on the received set temperature; determine a control temperature based on the set temperature, or based on the set temperature and the ambient temperature, according to the determined control mode of the fully automatic temperature control system; determine the control temperature as the target temperature of the air conditioning system, and control the air conditioning system to operate to achieve the target temperature.

[0010] In an exemplary embodiment, the control modes of the fully automatic temperature control system may include: a first control mode, a second control mode, and a third control mode. In the first control mode, the controller can determine the control temperature based on the set temperature and the ambient temperature. In the second control mode, the controller can determine the control temperature based on the set temperature. In the third control mode, the controller can determine the control temperature based on the set temperature and the ambient temperature.

[0011] In an exemplary implementation, the controller may be configured to: determine the control mode of the fully automatic temperature control system as a first control mode when the received set temperature is lower than a first predetermined temperature; determine the control mode of the fully automatic temperature control system as a second control mode when the received set temperature is higher than or equal to the first predetermined temperature and lower than or equal to a second predetermined temperature; and determine the control mode of the fully automatic temperature control system as a third control mode when the received set temperature is higher than the second predetermined temperature.

[0012] In an exemplary implementation, the controller may be configured to calculate the control temperature according to the following equation in a first control mode: T control =(T set -T1)×k1+T1, where T control To control the temperature, T set To set the temperature, T1 is the first predetermined temperature, and k1 is a first coefficient that depends on the ambient temperature.

[0013] In an exemplary implementation, the controller may be configured to calculate the control temperature according to the following equation in a second control mode: T control =T set , among which, T control To control the temperature, T set To set the temperature.

[0014] In an exemplary implementation, the controller may be configured to calculate the control temperature according to the following equation in a third control mode: T control =(T set -T2)×k2+T2, where T control To control the temperature, T set To set the temperature, T2 is the second predetermined temperature, and k2 is a second coefficient that depends on the ambient temperature.

[0015] According to another aspect of the present invention, a control method for a fully automatic temperature control system may include: receiving a user's set temperature for the air conditioning system from an air conditioning system via a controller; receiving a sensed ambient temperature from an ambient temperature sensor via a controller; determining a control mode for the fully automatic temperature control system based on the received set temperature via a controller; determining a control temperature based on the set temperature, or based on the set temperature and the ambient temperature, via a controller according to the determined control mode of the fully automatic temperature control system; and determining the control temperature as the target temperature of the air conditioning system via a controller, and controlling the air conditioning system to operate to achieve the target temperature.

[0016] In an exemplary embodiment, the control modes of the fully automatic temperature control system may include: a first control mode, a second control mode, and a third control mode. In the first control mode, the controller determines the control temperature based on the set temperature and the ambient temperature. In the second control mode, the controller determines the control temperature based on the set temperature. In the third control mode, the controller determines the control temperature based on the set temperature and the ambient temperature.

[0017] In an exemplary embodiment, the control method further includes: when the received set temperature is lower than a first predetermined temperature, the controller determines the control mode of the fully automatic temperature control system as a first control mode; when the received set temperature is higher than or equal to the first predetermined temperature and lower than or equal to a second predetermined temperature, the controller determines the control mode of the fully automatic temperature control system as a second control mode; when the received set temperature is higher than the second predetermined temperature, the controller determines the control mode of the fully automatic temperature control system as a third control mode.

[0018] In an exemplary embodiment, the control method further includes: in a first control mode, the controller calculates the control temperature according to the following equation: T control =(T set -T1)×k1+T1, where T control To control the temperature, T set To set the temperature, T1 is the first predetermined temperature, and k1 is a first coefficient that depends on the ambient temperature.

[0019] In an exemplary embodiment, the control method further includes: in a second control mode, the controller calculates the control temperature according to the following equation: T control =T set , among which, T control To control the temperature, T set To set the temperature.

[0020] In an exemplary embodiment, the control method further includes: in a third control mode, the controller calculates the control temperature according to the following equation: T control =(T set -T2)×k2+T2, where T control To control the temperature, T set To set the temperature, T2 is the second predetermined temperature, and k2 is a second coefficient that depends on the ambient temperature.

[0021] The fully automatic temperature control system and its control method according to an exemplary embodiment of the present invention can take into account the influence of ambient temperature on the operation of the air conditioning system, and perform segmented control of the target temperature of the air conditioning system in different temperature ranges of the set temperature of the air conditioning system, thereby improving the cooling performance of the air conditioning system in low temperature environment and the heating performance in high temperature environment. Attached Figure Description

[0022] The above and other objects, features, and advantages of the invention will become clearer from the following detailed description presented in conjunction with the accompanying drawings, in which:

[0023] Figure 1 This is a configuration block diagram illustrating a fully automatic temperature control system according to an exemplary embodiment of the present invention;

[0024] Figure 2 A flowchart illustrating a control method for a fully automatic temperature control system according to an exemplary embodiment of the present invention;

[0025] Figure 3 This is a graph showing how the control temperature of a fully automatic temperature control system changes as the set temperature of the air conditioning system changes. Detailed Implementation

[0026] It should be understood that the term “vehicle” or “of a vehicle” or other similar terms used herein generally include motor vehicles, such as passenger cars including sport utility vehicles (SUVs), buses, trucks, passenger cars of various commercial vehicles, boats including various boats and ships, aircraft, etc., and includes hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen-powered vehicles, and other alternative fuel vehicles (e.g., fuels derived from non-petroleum energy sources).

[0027] Although the exemplary embodiments are described as utilizing multiple units to perform the exemplary process, it should be understood that the exemplary process can also be performed by one or more modules. Furthermore, it will be understood that the term control unit / control unit refers to a hardware device including a memory and a processor. The memory is configured to store modules, and the processor is specifically configured to execute said modules to perform one or more processes further described below.

[0028] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It is further understood that when the terms “comprising” and / or “including” are used in this specification, they specifically refer to the presence of the stated features, values, steps, operations, elements, and / or components, but do not exclude the presence or additional presence of one or more other features, values, steps, operations, elements, components, and / or combinations thereof. As used herein, the term “and / or” includes any and / or all combinations of one or more of the associated enumerations.

[0029] The fully automatic temperature control system and its control method according to an exemplary embodiment of the present invention will now be described with reference to the accompanying drawings.

[0030] Figure 1 This is a configuration block diagram illustrating a fully automatic temperature control system according to an exemplary embodiment of the present invention.

[0031] like Figure 1 As shown, a fully automatic temperature control system according to an exemplary embodiment of the present invention may include an ambient temperature sensor 10 and a controller 20. Furthermore, the controller 20 can communicate with an air conditioning controller 30 and an audio-visual navigation system (AVNT) 40 via vehicle communication (e.g., CAN communication).

[0032] Ambient temperature sensor 10 can be used to sense ambient temperature T amb At ambient temperature T amb At lower temperatures, the heating performance of the air conditioning system is primarily determined by the vehicle's design goals, and is less affected by the ambient temperature T. amb The impact is relatively small. At ambient temperature T... amb Under high temperatures, the cooling performance of the air conditioning system is primarily determined by the vehicle's design goals, and is less affected by the ambient temperature T. amb The impact is relatively small. In other words, at an ambient temperature T... amb At lower temperatures, the ambient temperature T amb It mainly affects the cooling performance of the air conditioning system; while at an ambient temperature T amb Under higher conditions, the ambient temperature T amb It mainly affects the heating performance of the air conditioning system.

[0033] Here, the user's set temperature T for the air conditioning system will be... set The condition where the temperature is below the first predetermined temperature T1 is defined as the cooling mode of the air conditioning system, and the condition where the user sets the temperature of the air conditioning system to be higher than the second predetermined temperature T2 is defined as the heating mode of the air conditioning system.

[0034] Therefore, at an ambient temperature T ambIn cases of both low and high temperatures, the fully automatic temperature control system can take into account the ambient temperature T. amb The impact on the operation of the air conditioning system, in order to improve the cooling and heating performance of the air conditioning system.

[0035] In an exemplary embodiment, controller 20 may be a separately configured controller. In this case, controller 20 can receive sensed ambient temperature T from ambient temperature sensor 10 and audio-visual navigation system (AVNT) 40 via in-vehicle communication (e.g., CAN communication). amb and the user's set temperature T for the air conditioning system set Furthermore, the controller 20 can transmit the control temperature T of the fully automatic temperature control system via vehicle communication. control (The following section will discuss the control temperature T) control (Detailed description provided) The system is sent to the air conditioning controller 30 for controlling the operation of the air conditioning system. The controller 20 receives the user's set temperature T for the air conditioning system from the audio-visual navigation system (AVNT) 40. set By way of example only, controller 20 can also receive the user's set temperature T for the air conditioning system from a physical button located in the vehicle. set .

[0036] In another exemplary embodiment, controller 20 may also be integrated with air conditioning controller 30.

[0037] Based on the received user setting temperature T for the air conditioning system set The controller 20 can determine the control mode of the fully automatic temperature control system.

[0038] In an exemplary embodiment, the control modes of the fully automatic temperature control system may include: a first control mode, a second control mode, and a third control mode.

[0039] To maximize heating or cooling of the vehicle interior even when the air conditioning system does not have LO and HI settings, the user can adjust the temperature according to their preferred setting (T). set The fully automatic temperature control system is divided into three control modes: a first control mode, a second control mode, and a third control mode. Therefore, different air conditioning systems can be set at different temperatures (T). set The target temperature T of the air conditioning system within the temperature range target Implement segmented control.

[0040] Specifically, when the user sets the temperature T for the air conditioning system... set Set temperature T for the air conditioning system set When the set temperature T is at or near the lower limit, it indicates that the user's cooling demand is high. Therefore, the set temperature T of this air conditioning system... setWithin a given temperature range, the fully automatic temperature control system can control the target temperature T of the air conditioning system. target Set to a temperature T higher than the user's set temperature for the air conditioning system. set Lower temperatures result in improved cooling performance of the air conditioning system.

[0041] When the user sets the air conditioning system temperature T set Set temperature T for the air conditioning system set When the temperature reaches or is close to the upper limit of the set temperature T, it indicates that the user's heating demand is high. Therefore, the set temperature T of this air conditioning system... set Within a given temperature range, the fully automatic temperature control system can control the target temperature T of the air conditioning system. target Set to a temperature T higher than the user's set temperature for the air conditioning system. set Higher, thus improving the heating performance of the air conditioning system.

[0042] As an example, when the user receives the set temperature T for the air conditioning system... set When the temperature is below the first predetermined temperature T1, the controller 20 can set the control mode of the fully automatic temperature control system to the first control mode. In the first control mode, the controller 20 can set the target temperature T of the air conditioning system to the first control mode. target Set to a temperature T higher than the user's set temperature for the air conditioning system. set Lower.

[0043] When the user sets the air conditioning system temperature T set When the temperature is higher than or equal to the first predetermined temperature T1 and lower than or equal to the second predetermined temperature T2, the controller 20 can set the control mode of the fully automatic temperature control system to the second control mode. In the second control mode, the controller 20 can set the target temperature T of the air conditioning system to the second control mode. target Set to the user's set temperature T for the air conditioning system set same.

[0044] When the user sets the air conditioning system temperature T set When the temperature exceeds the second predetermined temperature T2, the controller 20 can switch the control mode of the fully automatic temperature control system to the third control mode. In the third control mode, the controller 20 can set the target temperature T of the air conditioning system... target Set to a temperature T higher than the user's set temperature for the air conditioning system. set higher.

[0045] Preferably, the first predetermined temperature T1 can be 20°C, and the second predetermined temperature T2 can be 24°C.

[0046] After determining the control mode of the fully automatic temperature control system, the controller 20 can, based on the determined control mode and the ambient temperature T, determine the control mode. amband the set temperature T of the air conditioning system set Calculate the control temperature T of the fully automatic temperature control system. control .

[0047] Specifically, in the first control mode, the controller 20 can calculate the control temperature T of the fully automatic temperature control system according to the following equation 1. control :

[0048] Equation 1:

[0049] T control =(T set -T1)×k1+T1,

[0050] Among them, T control The control temperature for a fully automatic temperature control system, T set The set temperature for the air conditioning system, T1 is the first predetermined temperature, and k1 depends on the ambient temperature T. amb The first coefficient.

[0051] Table 1 below shows the values ​​of the first coefficient k1 in relation to the ambient temperature T. amb The mapping relationship.

[0052] Table 1

[0053]

[0054] As shown in Table 1, when the ambient temperature T amb Below -10℃, the value of the first coefficient k1 can be 1. When the ambient temperature T amb When the temperature is above or equal to -10℃ and below 20℃, the value of the first coefficient k1 can vary with the ambient temperature T. amb It increases as the ambient temperature T decreases. amb When the temperature is above or equal to 20℃, the value of the first coefficient k1 can be 1.

[0055] The first coefficient, k1, reflects the ambient temperature, T. amb For the control temperature T of a fully automatic temperature control system control The magnitude of the influence. When the ambient temperature T amb When the temperature is within the range of -10℃ to 20℃, at the user's set temperature T for the air conditioning system set Under the same conditions, ambient temperature T amb The lower the temperature, the lower the control temperature T of the fully automatic temperature control system. control With the set temperature T of the air conditioning system set The greater the difference (i.e., the greater the control temperature T of the fully automatic temperature control system), the higher the temperature will be. control With the set temperature T of the air conditioning system setThe larger the absolute value of the difference, the better the cooling performance of the air conditioning system can be improved in low-temperature environments.

[0056] Table 1 only shows the relationship with ambient temperature T. amb The corresponding value of the first coefficient k1 can be calculated using linear interpolation and is related to the ambient temperature T. amb The corresponding values ​​of the other first coefficients k1.

[0057] As an example, when the ambient temperature T amb When the temperature is -8℃, the ambient temperature T can be determined. amb Within a temperature range of -10℃ to -5℃, the corresponding value of the first coefficient k1 ranges from 3.0 to 2.7. Linear interpolation within this range (3.0 to 2.7) can be used to calculate the value of the coefficient k1 relative to the ambient temperature T at -8℃. amb The corresponding value of the first coefficient k1. Therefore, the first coefficient k1 can be calculated as: k1=(2.7-3.0) / ((-5)-(-10))×((-8)-(-10))+3.0=2.88.

[0058] After calculating the first coefficient k1, the controller 20 can calculate the control temperature T of the fully automatic temperature control system according to Equation 1. control .

[0059] As an example, if the user sets the temperature T of the air conditioning system set The temperature is 19°C, based on the received set temperature T of the air conditioning system. set The calculated first coefficient k1 can be used to determine the control temperature T of the fully automatic temperature control system. control Calculated as: T control = (19-20)×2.88+20=17.12℃, which is lower than the user's set temperature T for the air conditioning system. set .

[0060] Calculate the control temperature T of the fully automatic temperature control system control Then, the controller 20 can transmit the determined control temperature T via vehicle communication. control Send to air conditioning controller 30 to control temperature T control The target temperature T for the air conditioning system is determined. target And control the operation of the air conditioning system to achieve the target temperature T. target .

[0061] In the first control mode, the air conditioning system can operate at a temperature lower than the set temperature T. set The temperature is used as the target temperature T target This allows the fully automatic temperature control system to operate within a wider range of low-temperature temperature regulation within the vehicle, thus expanding the range of temperature regulation for the interior.

[0062] In the second control mode, the controller 20 can calculate the control temperature T of the fully automatic temperature control system according to the following equation 2. control :

[0063] Equation 2:

[0064] T control =T set ,

[0065] Among them, T control To control the temperature, T set Set the temperature for the air conditioning system.

[0066] In the second control mode, the air conditioning system can be set to a temperature T. set As the target temperature T target Run it.

[0067] In the third control mode, the controller 20 can calculate the control temperature T of the fully automatic temperature control system according to the following equation 3. control :

[0068] Equation 3:

[0069] T control =(T set -T2)×k1+T2,

[0070] Among them, T control The control temperature for a fully automatic temperature control system, T set The set temperature for the air conditioning system is T2, where T2 is the first predetermined temperature and k2 depends on the ambient temperature T. amb The second coefficient.

[0071] Table 2 below shows the values ​​of the second coefficient k2 in relation to the ambient temperature T. amb The mapping relationship.

[0072] Table 2

[0073]

[0074] As shown in Table 2, when the ambient temperature T amb When the temperature is below or equal to -10℃, the value of the second coefficient k2 can be 1. When the ambient temperature T... amb When the temperature is above -10℃ and below or equal to 20℃, the value of the second coefficient k2 can vary with the ambient temperature T. amb It increases with the increase of temperature T. amb When the temperature is above 20℃, the value of the second coefficient k2 can be 1.

[0075] The second coefficient, k2, reflects the ambient temperature, T. ambFor the control temperature T of a fully automatic temperature control system control The magnitude of the influence. When the ambient temperature T amb When the temperature is within the range of -10℃ to 20℃, at the user's set temperature T for the air conditioning system set Under the same conditions, ambient temperature T amb The higher the temperature, the higher the control temperature T of the fully automatic temperature control system. control With the set temperature T of the air conditioning system set The greater the difference, the better the heating performance of the air conditioning system can be improved in high-temperature environments.

[0076] Table 2 only shows the relationship with ambient temperature T. amb The corresponding value of the second coefficient k2 can be calculated using linear interpolation relative to the ambient temperature T. amb The corresponding values ​​of the other second coefficients, k2.

[0077] As an example, when the ambient temperature T amb When the temperature is 8℃, the ambient temperature T can be determined. amb Within a temperature range of 5°C to 10°C, the corresponding value of the second coefficient k2 is between 2.5 and 2.7. Linear interpolation within this range can be used to calculate the value of the coefficient with an ambient temperature T of 8°C. amb The corresponding value of the second coefficient k2. Therefore, the second coefficient k2 can be calculated as: k2=(2.7-2.5) / (10-5)×(8-5)+2.5=2.62.

[0078] After calculating the second coefficient k2, controller 20 can calculate the control temperature T of the fully automatic temperature control system according to equation 3. control .

[0079] As an example, if the user sets the temperature T of the air conditioning system set The temperature is 25°C, based on the received set temperature T of the air conditioning system. set The calculated second coefficient k2 can be used to determine the control temperature T of the fully automatic temperature control system. control Calculated as: T control = (25-24)×2.62+24=26.62℃, which is higher than the user's set temperature T for the air conditioning system. set .

[0080] Calculate the control temperature T of the fully automatic temperature control system control Then, the controller 20 can determine the control temperature T via vehicle communication. control Send to air conditioning controller 30 to control temperature T control The target temperature T for the air conditioning system is determined. targetAnd control the operation of the air conditioning system to achieve the target temperature T. target .

[0081] In the third control mode, the air conditioning system can operate at a temperature higher than the set temperature T. set The temperature is used as the target temperature T target This allows the fully automatic temperature control system to operate within a wider range of high-temperature temperature regulation within the vehicle, thus expanding the range of temperature regulation within the vehicle's interior.

[0082] Figure 2 A flowchart illustrating a control method for a fully automatic temperature control system according to an exemplary embodiment of the present invention is provided. Figure 1 The fully automatic temperature control system shown executes steps S101 to S111 of the control method described below.

[0083] like Figure 2 As shown, in step S101, the controller 20 can receive the sensed ambient temperature T from the ambient temperature sensor 10 and the audio-visual navigation system (AVNT) 40 via vehicle communication (e.g., CAN communication). amb and the user's set temperature T for the air conditioning system set The controller 20 receives the user's set temperature T for the air conditioning system from the audio-visual navigation system (AVNT) 40. set By way of example only, controller 20 can also receive the user's set temperature T for the air conditioning system from a physical button located in the vehicle. set .

[0084] In step S102, the controller 20 can receive the user's set temperature T for the air conditioning system. set The control mode of the fully automatic temperature control system is determined by comparing it with either a first predetermined temperature T1 or a second predetermined temperature T2.

[0085] Specifically, when the user sets the temperature T for the air conditioning system... set When the temperature is below the first predetermined temperature T1, in step S103, the controller 20 can determine the control mode of the fully automatic temperature control system as the first control mode.

[0086] When the user sets the air conditioning system temperature T set When the temperature is higher than or equal to the first predetermined temperature T1 and lower than or equal to the second predetermined temperature T2, in step S104, the controller 20 can determine the control mode of the fully automatic temperature control system as the second control mode.

[0087] When the user sets the air conditioning system temperature T set When the temperature is higher than the second predetermined temperature T2, in step S105, the controller 20 can determine the control mode of the fully automatic temperature control system as the third control mode.

[0088] When the control mode of the fully automatic temperature control system is determined to be the first control mode, in step S106, the controller 20 can, based on the ambient temperature T, determine the control mode according to Table 1 above. amb The relationship between ambient temperature T and the linear interpolation method is calculated. amb The corresponding value of the first coefficient k1.

[0089] After calculating the value of the first coefficient k1, in step S107, the controller 20 can, based on Equation 1 above, determine the set temperature T of the air conditioning system. set The control temperature T of the fully automatic temperature control system is calculated using the first coefficient k1. control .

[0090] Calculate the control temperature T of the fully automatic temperature control system control Then, in step S111, the controller 20 can transmit the calculated control temperature T via vehicle communication. control Send to air conditioning controller 30 to control temperature T control The target temperature T for the air conditioning system is determined. target And control the operation of the air conditioning system to achieve the target temperature T. target .

[0091] When the control mode of the fully automatic temperature control system is determined to be the second control mode, in step S108, the controller 20 can, based on the set temperature T of the air conditioning system, calculate according to Equation 2 above. set To calculate the control temperature T of the fully automatic temperature control system control .

[0092] Calculate the control temperature T of the fully automatic temperature control system control Then, in step S111, the controller 20 can transmit the calculated control temperature T via vehicle communication. control Send to air conditioning controller 30 to control temperature T control The target temperature T for the air conditioning system is determined. target And control the operation of the air conditioning system to achieve the target temperature T. target .

[0093] When the control mode of the fully automatic temperature control system is determined to be the third control mode, in step S109, the controller 20 can, based on the ambient temperature T, determine the control mode according to Table 2 above. amb The relationship between ambient temperature T and the linear interpolation method is calculated. amb The corresponding value of the second coefficient k2.

[0094] After calculating the value of the second coefficient k2, in step S110, the controller 20 can, based on equation 3 above, determine the set temperature T of the air conditioning system. set The control temperature T of the fully automatic temperature control system is calculated using the second coefficient k2. control .

[0095] Calculate the control temperature T of the fully automatic temperature control system control Then, in step S111, the controller 20 can transmit the calculated control temperature T via vehicle communication. control Send to air conditioning controller 30 to control temperature T control The target temperature T for the air conditioning system is determined. target And control the operation of the air conditioning system to achieve the target temperature T. target .

[0096] Figure 3 To show the control temperature T of the fully automatic temperature control system control With the set temperature T of the air conditioning system set The graph shows the changes in temperature as the ambient temperature T changes, where the solid line represents the change in ambient temperature T. amb At a temperature of 15°C, the control temperature T of the fully automatic temperature control system according to an exemplary embodiment of the present invention is... control With the set temperature T of the air conditioning system set The curve changes with the temperature, and the dashed line shows the control temperature T of a fully automatic temperature control system according to existing technology. control With the set temperature T of the air conditioning system set The curve changes with the changes.

[0097] like Figure 3 As shown by the dashed line, in a fully automatic temperature control system based on existing technology, regardless of the set temperature T of the air conditioning system... set Within which temperature range is the control temperature T of the fully automatic temperature control system located? control With the set temperature T of the air conditioning system set The rate of change is constant, always 1. Therefore, it is impossible to maximize the heating or cooling of the vehicle interior.

[0098] Conversely, such as Figure 3 As shown by the solid line in the figure, in the fully automatic temperature control system according to an exemplary embodiment of the present invention, when the set temperature T of the air conditioning system is... set When the temperature is below the first predetermined temperature T1, the control temperature T of the fully automatic temperature control system is... control With the set temperature T of the air conditioning system set The rate of change is the first coefficient k1. When the set temperature T of the air conditioning system... setWhen the temperature is higher than or equal to the first predetermined temperature T1 and lower than or equal to the second predetermined temperature T2, the control temperature T of the fully automatic temperature control system is... control With the set temperature T of the air conditioning system set The rate of change is 1. When the set temperature T of the air conditioning system... set When the temperature is higher than the second predetermined temperature T2, the control temperature T of the fully automatic temperature control system is... control With the set temperature T of the air conditioning system set The rate of change is the second coefficient k2.

[0099] At ambient temperature T amb At 15℃, referring to Table 1, the first coefficient k1 is 1.3, and referring to Table 2, the second coefficient k2 is 3.2.

[0100] From the set temperature T of the air conditioning system set The lower limit value T lower Within a first temperature range from a first predetermined temperature T1, the control temperature T of the fully automatic temperature control system according to an exemplary embodiment of the present invention is... control It can achieve a control temperature T higher than that of existing fully automatic temperature control systems. control Lower temperatures. Therefore, compared to existing technologies, the fully automatic temperature control system according to an exemplary embodiment of the present invention can expand the low-temperature regulation range of the vehicle interior temperature.

[0101] Within a second temperature range from a first predetermined temperature T1 to a second predetermined temperature T2, the control temperature T of the fully automatic temperature control system according to an exemplary embodiment of the present invention is... control The temperature T can be controlled by a fully automatic temperature control system based on existing technology. control same.

[0102] From the second predetermined temperature T2 to the set temperature T of the air conditioning system set The upper limit value T upper In the third temperature range, the control temperature T of the fully automatic temperature control system according to an exemplary embodiment of the present invention is... control It can achieve a control temperature T higher than that of existing fully automatic temperature control systems. control Higher temperatures. Therefore, compared to existing technologies, the fully automatic temperature control system according to an exemplary embodiment of the present invention can expand the high-temperature regulation range of the vehicle interior temperature.

[0103] Therefore, compared with the fully automatic temperature control system of the prior art, the fully automatic temperature control system according to the exemplary embodiment of the present invention can improve the cooling and heating performance of the air conditioning system.

[0104] The fully automatic temperature control system and its control method according to an exemplary embodiment of the present invention can take into account the influence of ambient temperature on the operation of the air conditioning system, and perform segmented control of the target temperature of the air conditioning system in different temperature ranges of the set temperature of the air conditioning system, thereby improving the cooling performance of the air conditioning system in low temperature environment and the heating performance in high temperature environment.

[0105] The foregoing description of specific exemplary embodiments of the invention is for illustrative and descriptive purposes. It is not intended to be exhaustive or to limit the invention to the precise forms disclosed, and it will be apparent that many modifications and variations can be made in light of the foregoing teachings. The exemplary embodiments were chosen and described to explain certain principles of the invention and its practical application, thereby enabling others skilled in the art to implement and utilize various exemplary embodiments of the invention, as well as their different alternatives and modifications. The scope of the invention is intended to be defined by the appended claims and their equivalents.

Claims

1. A fully automatic temperature control system, comprising: An ambient temperature sensor is used to sense the ambient temperature. and The controller is configured as follows: Receive the user's set temperature for the air conditioning system from the air conditioning system; Receive the sensed ambient temperature from the ambient temperature sensor; The control mode of the fully automatic temperature control system is determined based on the received set temperature. Based on the established control mode of the fully automatic temperature control system, the control temperature is determined based on the set temperature, or based on the set temperature and the ambient temperature. The control temperature is set as the target temperature of the air conditioning system, and the air conditioning system is controlled to operate in order to achieve the target temperature.

2. The fully automatic temperature control system according to claim 1, wherein, The control modes of the fully automatic temperature control system include: In the first control mode, the control temperature is determined based on the set temperature and the ambient temperature. The second control mode, in which the control temperature is determined based on the set temperature; and In the third control mode, the control temperature is determined based on the set temperature and the ambient temperature.

3. The fully automatic temperature control system according to claim 2, wherein, The controller is configured as follows: When the received set temperature is lower than the first predetermined temperature, the control mode of the fully automatic temperature control system is set to the first control mode. When the received set temperature is higher than or equal to the first predetermined temperature and lower than or equal to the second predetermined temperature, the control mode of the fully automatic temperature control system is determined to be the second control mode. When the received set temperature is higher than the second predetermined temperature, the control mode of the fully automatic temperature control system is set to the third control mode.

4. The fully automatic temperature control system according to claim 3, wherein, The controller is configured as follows: In the first control mode, the control temperature is calculated according to the following equation: T control =(T set -T1)×k1+T1, Among them, T control To control the temperature, T set To set the temperature, T1 is the first predetermined temperature, and k1 is a first coefficient that depends on the ambient temperature.

5. The fully automatic temperature control system according to claim 3, wherein, The controller is configured as follows: In the second control mode, the control temperature is calculated according to the following equation: T control =T set , Among them, T control To control the temperature, T set To set the temperature.

6. The fully automatic temperature control system according to claim 3, wherein, The controller is configured as follows: In the third control mode, the control temperature is calculated according to the following equation: T control =(T set -T2)×k2+T2, Among them, T control To control the temperature, T set To set the temperature, T2 is the second predetermined temperature, and k2 is a second coefficient that depends on the ambient temperature.

7. A control method for a fully automatic temperature control system, comprising: The controller receives the user's set temperature for the air conditioning system from the air conditioning system. The controller receives the sensed ambient temperature from the ambient temperature sensor. The controller determines the control mode of the fully automatic temperature control system based on the received set temperature. The controller determines the control temperature based on the set temperature, or based on the set temperature and the ambient temperature, according to the control mode of the fully automatic temperature control system. The controller determines the control temperature as the target temperature of the air conditioning system and controls the operation of the air conditioning system to achieve the target temperature.

8. The control method according to claim 7, wherein, The control modes of the fully automatic temperature control system include: In the first control mode, the controller determines the control temperature based on the set temperature and the ambient temperature. In the second control mode, the controller determines the control temperature based on the set temperature; and In the third control mode, the controller determines the control temperature based on the set temperature and the ambient temperature.

9. The control method according to claim 8, wherein, Further includes: When the received set temperature is lower than the first predetermined temperature, the controller will determine the control mode of the fully automatic temperature control system to the first control mode. When the received set temperature is higher than or equal to the first predetermined temperature and lower than or equal to the second predetermined temperature, the controller will determine the control mode of the fully automatic temperature control system to the second control mode. When the received set temperature is higher than the second predetermined temperature, the controller will determine the control mode of the fully automatic temperature control system to the third control mode.

10. The control method according to claim 9, wherein, Further includes: In the first control mode, the controller calculates the control temperature according to the following equation: T control =(T set -T1)×k1+T1, Among them, T control To control the temperature, T set To set the temperature, T1 is the first predetermined temperature, and k1 is a first coefficient that depends on the ambient temperature.

11. The control method according to claim 9, wherein, Further includes: In the second control mode, the controller calculates the control temperature according to the following equation: T control =T set , Among them, T control To control the temperature, T set To set the temperature.

12. The control method according to claim 9, wherein, Further includes: In the third control mode, the controller calculates the control temperature according to the following equation: T control =(T set -T2)×k2+T2, Among them, T control To control the temperature, T set To set the temperature, T2 is the second predetermined temperature, and k2 is a second coefficient that depends on the ambient temperature.

Images