Air temperature control method, device and equipment, storage medium and vehicle

Abstract

The invention discloses an air temperature control method, device and equipment, a storage medium and a vehicle. The method comprises the steps that the first temperature of first air flow cooled by an intercooler and the second temperature of cooling liquid in the intercooler are obtained, and the second temperature is the temperature of the cooling liquid after the first air flow is cooled by the intercooler; target operation parameters of the intercooler are determined based on the comparison result between the first temperature and the second temperature and the comparison result between the first temperature and the second target temperature, the target operation parameters are used for adjusting the temperature of the cooling liquid, and the target operation parameters comprise the target rotating speed of a fan in the intercooler and / or the target circulating state of the cooling liquid; the second target temperature is the target temperature of the cooling liquid; and controlling the intercooler based on the target operating parameter to control the temperature of the second air flow entering the intercooler. According to the embodiment of the invention, the air temperature control effect of the intercooler can be improved.

Description

Technical Field

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

[0002] An intercooler is a device used to enhance engine performance. Its main function is to increase the density of the engine's intake air by reducing the engine's intake air temperature, thereby providing more oxygen for combustion, thereby increasing the engine's output power and efficiency.

[0003] During the use of the intercooler, the ambient temperature of the intercooler and the load status of the engine are obtained, and the operating parameters of the intercooler are adjusted according to the ambient temperature and the load status of the engine. The intercooler is operated according to the adjusted operating parameters to achieve temperature control of the air flowing into the intercooler.

[0004] However, since the intercooler's ambient temperature and engine load are only somewhat correlated with the intercooler's cooling effectiveness, rather than being direct indicators of its effectiveness, the conventional method of adjusting operating parameters may have a certain lag and fail to accurately adjust operating parameters in real time, resulting in poor control of the air temperature flowing into the intercooler. Summary of the Invention

[0005] The embodiments of the present application provide an air temperature control method, device, equipment, storage medium and vehicle, which can solve the problem that the existing method of adjusting the operating parameters of the intercooler has poor effect on the temperature control of the air flow flowing into the intercooler.

[0006] In a first aspect, an embodiment of the present application provides a method for controlling air temperature, the method comprising:

[0007] acquiring a first temperature of a first air flow after cooling through an intercooler, and a second temperature of a coolant in the intercooler after cooling the first air flow;

[0008] determining a target operating parameter of the intercooler based on a comparison result between the first temperature and the second temperature, and a comparison result between the first temperature and a second target temperature, wherein the target operating parameter is used to adjust the temperature of the coolant, the target operating parameter includes a target speed of a fan in the intercooler and / or a target circulation state of the coolant, and the second target temperature is a target temperature of the coolant;

[0009] The intercooler is controlled based on the target operating parameter to control the temperature of the second air flow entering the intercooler.

[0010] In some embodiments, determining the target operating parameter of the intercooler based on a comparison result between the first temperature and the second temperature, and a comparison result between the first temperature and a second target temperature includes:

[0011] determining a target circulation state of the coolant in the intercooler based on a first target temperature and the first temperature, the first target temperature being a target temperature of the first air flow after being cooled by the intercooler;

[0012] determining a target rotational speed of a fan in the intercooler based on a comparison result between the first temperature and the second temperature, and a comparison result between the first temperature and a second target temperature, when the target circulation state of the coolant is a first circulation state;

[0013] The first circulation state is the circulation process of the coolant flowing through the radiator, and the second target temperature is the target temperature of the coolant.

[0014] In some embodiments, determining the target circulation state of the coolant in the intercooler based on the first target temperature and the first temperature includes:

[0015] determining a first difference of the first temperature minus the first target temperature;

[0016] When the first difference is smaller than a first threshold, the target circulation state of the coolant is determined to be a second circulation state, wherein the second circulation state is a circulation process of the coolant not flowing through a radiator.

[0017] In some embodiments, after determining the first difference between the first temperature and the first target temperature, the method further includes:

[0018] If the first difference is greater than or equal to a first threshold, determining a second difference of the first temperature minus the second temperature, and a third difference of the first temperature minus the second target temperature;

[0019] determining a fourth difference value by subtracting the second difference value from the third difference value;

[0020] When the fourth difference is less than or equal to a second threshold, determining the target circulation state of the coolant to be a second circulation state;

[0021] When the fourth difference is greater than a second threshold, the target circulation state of the coolant is determined to be the first circulation state.

[0022] In some embodiments, when the target circulation state of the coolant is a first circulation state, determining the target rotational speed of the fan in the intercooler based on a comparison result between the first temperature and the second temperature, and a comparison result between the first temperature and the second target temperature, includes:

[0023] When the fourth difference is greater than a third threshold, determining the target speed of the fan as the first speed value;

[0024] When the fourth difference is less than or equal to the third threshold and greater than the fourth threshold, determining the target speed of the fan as a second speed value associated with the fourth difference;

[0025] When the fourth difference is greater than the second threshold and less than or equal to the fourth threshold, determining the target speed of the fan as a third speed value;

[0026] Among them, the third threshold is greater than the fourth threshold, the fourth threshold is greater than the second threshold, the first speed value is greater than the second speed value, the second speed value is greater than the third speed value, and the first speed value, the second speed value and the third speed value are all greater than or equal to 0 and less than or equal to 1.

[0027] In some embodiments, after determining the target circulation state of the coolant as the second circulation state when the fourth difference is less than or equal to the second threshold, the method further includes:

[0028] When it is detected that the fourth difference is greater than a fifth threshold, the target circulation state of the coolant is switched to the first circulation state, wherein the fifth threshold is between the first threshold and the third threshold.

[0029] In a second aspect, an embodiment of the present application provides an air temperature control device, the device comprising:

[0030] an acquisition module, configured to acquire a first temperature of the first air flow after being cooled by an intercooler, and a second temperature of the coolant in the intercooler, wherein the second temperature is the temperature of the coolant after the intercooler cools the first air flow;

[0031] a determination module, configured to determine a target operating parameter of the intercooler based on a comparison result between the first temperature and the second temperature, and a comparison result between the first temperature and a second target temperature, wherein the target operating parameter is used to adjust the temperature of the coolant, the target operating parameter including a target speed of a fan in the intercooler and / or a target circulation state of the coolant, and the second target temperature is a target temperature of the coolant;

[0032] A control module is configured to control the intercooler based on the target operating parameter to control a temperature of a second air flow entering the intercooler.

[0033] In a third aspect, an embodiment of the present application provides an air temperature control device, the device comprising: a processor and a memory storing computer program instructions;

[0034] When the processor executes the computer program instructions, the above air temperature control method is implemented.

[0035] In a fourth aspect, an embodiment of the present application provides a computer storage medium having computer program instructions stored thereon. When the computer program instructions are executed by a processor, the above-mentioned air temperature control method is implemented.

[0036] In a fifth aspect, an embodiment of the present application provides a vehicle, which includes computer program instructions, and when the computer program instructions are executed by a processor, the above-mentioned air temperature control method is implemented.

[0037] In the present application, after the first air flow is cooled in the intercooler, the first temperature of the first air flow flowing through the intercooler after cooling in the intercooler and the second temperature of the coolant in the intercooler after the first air flow is cooled can be obtained, and the target operating parameters of the intercooler can be determined based on the comparison result between the first temperature and the second temperature, and the comparison result between the first temperature and the second target temperature, and the operation of the intercooler can be controlled based on the target operating parameters, so as to control the temperature of the subsequent second air flow. Compared with the prior art, since the first temperature can reflect the cooling effect of the intercooler based on the result information of gas cooling, and the second temperature of the coolant after the gas is cooled can directly reflect the cooling effect of the intercooler, the first temperature and the second temperature are both indicator parameters that can reflect the cooling effect of the intercooler in real time. Taking into account the first temperature and the second temperature, the cooling effect of the intercooler can be more comprehensively reflected from two aspects: the temperature of the cooled gas and the temperature of the cooled coolant, in combination with the state of the coolant and the state of the gas after cooling. The target operating parameters of the intercooler are then calculated based on this. The target operating parameters include the target speed of the fan and / or the target circulation state of the coolant. The circulation state of the coolant and the speed of the fan can both control the cooling effect of the intercooler on the air flow by adjusting the temperature of the coolant. Therefore, by controlling the intercooler with the adjusted target operating parameters, the cooling effect of the intercooler can be adjusted in real time more accurately, thereby improving the temperature control effect of the intercooler on the air flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0039] Figure 1 1 is a flow chart of an air temperature control method provided in one embodiment of the present application;

[0040] Figure 2 is a flow chart of an air temperature control method provided in another embodiment of the present application;

[0041] Figure 3 This is a schematic diagram of the hardware structure of an air temperature control device provided in one embodiment of the present application;

[0042] Figure 4 Schematic diagram of the structure of an air temperature control device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0043] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is merely to provide a better understanding of the present application by illustrating the examples of the present application.

[0044] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0045] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The embodiments will be described in detail below with reference to the accompanying drawings.

[0046] In related art, air needs to be cooled by coolant in an intercooler before entering the engine. This coolant can then be cooled by flowing through a radiator located at the air intake grille. A fan located at the air intake grille adjusts the cooling rate of the coolant, indirectly controlling the intercooler's temperature.

[0047] In related art, intercooler control strategies require information such as the intercooler's intake air temperature, the engine's intake air temperature after exiting the intercooler, the intercooler's intake air flow rate, and the air's specific heat capacity. The required heat release is calculated based on the intake air temperatures before and after the intercooler. The difference between the ambient temperature and the engine's intake air temperature is then used to calculate the fan's duty cycle to control the fan's speed.

[0048] However, the existing control strategy has the following defects:

[0049] 1. The existing control strategy requires obtaining the intercooler's intake air temperature, which requires adding a temperature sensor to the intercooler's air intake, increasing the overall hardware cost.

[0050] 2. The existing control strategy does not consider the impact of the actual intercooler coolant temperature on the intake air temperature cooling. Instead, it directly converts the fan speed based on the difference between the engine intake air temperature and the ambient temperature. The conversion accuracy will be greatly reduced, and the actual result cannot control the actual intercooler intake air temperature to the target intake air temperature.

[0051] Specifically, in order to solve the problems of the prior art, the embodiments of the present application provide an air temperature control method, device, equipment, storage medium and vehicle. The air temperature control method provided by the embodiments of the present application is first introduced below.

[0052] Figure 1 The following is a flow chart of a method for controlling the temperature of air provided by an embodiment of the present application. The method comprises the following steps:

[0053] S110 , obtaining a first temperature of a first air flow after being cooled by an intercooler, and a second temperature of a coolant in the intercooler, where the second temperature is the temperature of the coolant after the intercooler cools the first air flow.

[0054] In this embodiment, a first air flow flows from the environment into the intercooler. After being cooled in the intercooler, the first air flow flows to the engine inlet. Coolant cools the first air flow entering the intercooler before the first air flow flows from the intercooler to the engine. For example, in a vehicle, the intercooler is typically located at the front of the engine compartment, near the vehicle's air intake. When the vehicle is driving, the first air flow from the front of the vehicle is directed to the air intake, then passes through the intercooler, and ultimately flows into the engine.

[0055] When the first air flow flows out of the intercooler and flows to the engine inlet, a first temperature of the first air flow after being cooled by the intercooler can be detected by a temperature sensor installed after the first air flow is cooled by the intercooler.

[0056] In addition, there is coolant in the intercooler for cooling the air, and the temperature of the coolant after the first air flow is cooled can be detected by a temperature sensor installed in the intercooler, thereby obtaining the second temperature.

[0057] S120, determining target operating parameters of the intercooler based on a comparison result between the first temperature and the second temperature, and a comparison result between the first temperature and a second target temperature, wherein the target operating parameters are used to adjust the temperature of the coolant, the target operating parameters include a target speed of a fan in the intercooler and / or a target circulation state of the coolant, and the second target temperature is a target temperature of the coolant.

[0058] In this embodiment, the second temperature of the coolant in the intercooler reflects the cooling efficiency within the intercooler. The coolant temperature is used to control the intercooler's cooling efficiency for the airflow. The second temperature is affected by the temperature of the ambient intake air entering the intercooler. A decrease in intake air temperature results in a decrease in the coolant temperature, while an increase in intake air temperature similarly results in an increase in the coolant temperature. The second target temperature is the target coolant temperature.

[0059] The first temperature also reflects the effectiveness of the cooling process within the intercooler. If the first temperature is high, it may indicate that the intercooler is not effectively cooling the intake air, resulting in an increase in the temperature of the air.

[0060] The intercooler's operating parameters can affect the cooling efficiency of the air entering the intercooler. If the intercooler's cooling performance, as reflected by the first and second temperatures, does not meet user expectations, target operating parameters for the intercooler can be determined based on a comparison between the first and second temperatures, and a comparison between the first and second temperatures and a target temperature. The intercooler's operating parameters are adjusted to the target operating parameters, and intercooler operation is controlled based on the target operating parameters, thereby improving the intercooler's cooling efficiency. The intercooler's operating parameters may include at least one of the intercooler's fan speed and a target coolant circulation state.

[0061] S130 : Control the intercooler based on the target operating parameter to control the temperature of the second air flow entering the intercooler.

[0062] In this embodiment, the second air flow is the air flow that enters the intercooler for cooling after the first air flow. After the intercooler operating parameters are adjusted to target operating parameters based on the first and second temperatures, the intercooler can be operated based on the adjusted target operating parameters to continue cooling the second air flow that subsequently enters the intercooler.

[0063] In the present application, after the first air flow is cooled in the intercooler, the first temperature of the first air flow flowing through the intercooler after cooling in the intercooler and the second temperature of the coolant in the intercooler after the first air flow is cooled can be obtained. Based on the comparison result between the first temperature and the second temperature, and the comparison result between the first temperature and the second target temperature, the target operating parameters of the intercooler can be determined, and the operation of the intercooler can be controlled based on the target operating parameters, so as to control the temperature of the subsequent second air flow. Compared with the prior art, since the first temperature can reflect the cooling effect of the intercooler based on the result information of gas cooling, and the second temperature of the coolant after the gas is cooled can directly reflect the cooling effect of the intercooler, the first temperature and the second temperature are both indicator parameters that can reflect the cooling effect of the intercooler in real time. Taking into account the first temperature and the second temperature, the cooling effect of the intercooler can be more comprehensively reflected from two aspects: the temperature of the cooled gas and the temperature of the cooled coolant, in combination with the state of the coolant and the state of the gas after cooling. The target operating parameters of the intercooler are then calculated based on this. The target operating parameters include the target speed of the fan and / or the target circulation state of the coolant. The circulation state of the coolant and the speed of the fan can both control the cooling effect of the intercooler on the air flow by adjusting the temperature of the coolant. Therefore, by controlling the intercooler with the adjusted target operating parameters, the cooling effect of the intercooler can be adjusted in real time more accurately, thereby improving the temperature control effect of the intercooler on the air flow.

[0064] As an optional embodiment, the operating parameters of the intercooler include the circulation state of the coolant in the intercooler and the rotational speed of the fan in the intercooler; wherein, the circulation state of the coolant includes a first circulation state and a second circulation state, the first circulation state is that the circulation process of the coolant flows through the radiator, and the second circulation state is that the circulation process of the coolant does not flow through the radiator, and the radiator is used to dissipate heat for the coolant flowing through; the radiator includes the fan, and the rotational speed of the fan affects the heat dissipation effect on the coolant.

[0065] The above-mentioned S120 may include:

[0066] determining a target circulation state of the coolant in the intercooler based on a first target temperature and the first temperature, the first target temperature being a target temperature of the first air flow after being cooled by the intercooler;

[0067] determining a target rotational speed of a fan in the intercooler based on a comparison result between the first temperature and the second temperature, and a comparison result between the first temperature and a second target temperature, when the target circulation state of the coolant is a first circulation state;

[0068] The first circulation state is the circulation process of the coolant flowing through the radiator, and the second target temperature is the target temperature of the coolant.

[0069] In this embodiment, the first target temperature is the user's desired temperature of the first airflow after cooling through the intercooler, and the second target temperature is the user's desired temperature of the coolant in the intercooler. The first target temperature and the first temperature can be compared, and based on the comparison between the actual temperature after cooling through the intercooler and the user's desired temperature, it is determined whether the intercooler's cooling effect needs to be adjusted by adjusting the coolant circulation state.

[0070] If the target circulation state of the coolant needs to be determined as the first circulation state, that is, the circulation process of the coolant needs to flow through the radiator, then the target rotation speed of the fan in the radiator needs to be further determined.

[0071] Because the coolant cools the air flowing into the intercooler through contact with it, the coolant's temperature can affect the intercooler's cooling effect. The coolant circulates within the intercooler in either a first or second state. The first state is when the coolant circulates through the radiator, while the second state is when the coolant does not circulate through the radiator. The radiator is used to lower the coolant's temperature.

[0072] Furthermore, the fan speed in the radiator refers to the speed at which the fan rotates, which is used to control the fan's air volume and airflow. The fan speed can affect the radiator's cooling rate of the coolant, with higher speeds increasing the coolant's cooling rate. Therefore, the fan speed can also indirectly affect the intercooler's cooling performance.

[0073] In this embodiment, the target circulation state of the coolant and the target speed of the circulation in the radiator are determined based on a comparison of the first target temperature, the first temperature, the second target temperature and the second temperature, so as to adjust the temperature of the coolant in the intercooler, and further accurately control the cooling effect of the intercooler on the air through the temperature of the coolant.

[0074] As an optional embodiment, determining the target circulation state of the coolant in the intercooler based on the first target temperature and the first temperature includes:

[0075] determining a first difference of the first temperature minus the first target temperature;

[0076] When the first difference is less than a first threshold, the target circulation state of the coolant is determined to be a second circulation state, wherein the second circulation state is a circulation state in which the coolant does not flow through a radiator during its circulation process.

[0077] In this embodiment, the first difference is the difference between the actual temperature of the first airflow after cooling through the intercooler and the user's desired temperature of the first airflow. The first threshold is a pre-set threshold for the first difference. If the first difference is less than the first threshold, it can be assumed that the intercooler's cooling performance generally meets the user's expectations, and further cooling of the coolant in the intercooler is not necessary to improve the intercooler's cooling performance. Therefore, if the first difference is less than the first threshold, the target circulation state of the coolant can be determined as the second circulation state, meaning that the coolant does not need to flow through the radiator.

[0078] For example, Figure 2 As shown, the first temperature may be T0, the first target temperature may be T1, and the first threshold may be 2°C. If the first difference (T0-T1) between T0 and T1 is less than 2°C, the target circulation state of the coolant is determined to be the second circulation state in which the coolant does not flow through the radiator. Since the coolant does not flow through the radiator in the second circulation state, the fan speed is 0 at this time.

[0079] This embodiment can determine the circulation state of the coolant by comparing the first difference and the first threshold value. When the first difference is less than the first threshold value, the circulation state of the coolant is determined to be the second circulation state. Based on the first difference between the actual temperature of the first air flow after cooling by the intercooler and the first air flow temperature expected by the user, the circulation mode of the coolant in the intercooler can be accurately adjusted, and the cooling effect of the intercooler can be further accurately controlled.

[0080] As an optional embodiment, after determining the first difference between the first temperature and the first target temperature, the method further includes:

[0081] If the first difference is greater than or equal to a first threshold, determining a second difference of the first temperature minus the second temperature, and a third difference of the first temperature minus the second target temperature;

[0082] determining a fourth difference value by subtracting the second difference value from the third difference value;

[0083] When the fourth difference is less than or equal to a second threshold, determining the target circulation state of the coolant to be a second circulation state;

[0084] When the fourth difference is greater than a second threshold, the target circulation state of the coolant is determined to be the first circulation state.

[0085] In this embodiment, when a first difference between the actual temperature of the first air flow after being cooled by the intercooler and the first air flow temperature expected by the user is calculated, and the first difference is greater than or equal to the first threshold, it is necessary to further confirm whether the cooling effect of the intercooler meets the user's expectations, so as to decide whether it is necessary to cool the coolant in the intercooler to improve the cooling effect of the intercooler.

[0086] Specifically, a second difference value can be calculated with the first temperature as the minuend and the second temperature as the subtrahend, a third difference value can be calculated with the first temperature as the minuend and the second target temperature as the subtrahend, and a fourth difference value can be calculated with the third difference as the minuend and the second difference as the subtrahend. The fourth difference value is actually the difference between the actual coolant temperature and the user's desired temperature.

[0087] If the first difference is greater than or equal to the first threshold, and the fourth difference is greater than the second threshold, it can be determined that the intercooler's cooling performance does not meet the user's expectations, and further cooling of the coolant in the intercooler is necessary to improve the intercooler's cooling performance. Therefore, the target circulation state of the coolant is set to the first circulation state, that is, the coolant needs to flow through the radiator.

[0088] If the first difference is greater than or equal to the first threshold, and the fourth difference is less than or equal to the second threshold, the intercooler's cooling performance can be considered to meet the user's expectations, and further cooling of the coolant in the intercooler is not necessary to improve the intercooler's cooling performance. Therefore, the target coolant circulation state is set to the second circulation state. This means that the coolant does not need to flow through the radiator.

[0089] For example, Figure 2 As shown, the first threshold is 2°C, the second threshold is -3°C, the first temperature can be T0, the first target temperature can be T1, the second temperature can be T2, the second target temperature can be T3, the second difference between T0 and T1 is △Terr, the second difference between T0 and T2 is △T, and the third difference between T0 and T3 is △Tcal. When the first difference (T0-T1) is less than 2°C, the fourth difference (△Tcal-△T) and the second threshold can be compared. If (△Tcal-△T)>-3, the circulation state of the coolant is determined to be the second circulation state, otherwise the circulation state of the coolant is determined to be the first circulation state.

[0090] This embodiment can determine the circulation state of the coolant by comparing the fourth difference and the second threshold value, and can accurately adjust the circulation mode of the coolant in the intercooler based on the fourth difference between the actual temperature of the coolant and the user's expected temperature, and further accurately control the cooling effect of the intercooler.

[0091] As an optional embodiment, when the target circulation state of the coolant is the first circulation state, determining the target rotational speed of the fan in the intercooler based on a comparison result between the first temperature and the second temperature, and a comparison result between the first temperature and the second target temperature, includes:

[0092] When the fourth difference is greater than a third threshold, determining the target speed of the fan as the first speed value;

[0093] When the fourth difference is less than or equal to the third threshold and greater than the fourth threshold, determining the target speed of the fan as a second speed value associated with the fourth difference;

[0094] When the fourth difference is greater than the second threshold and less than or equal to the fourth threshold, determining the target speed of the fan as a third speed value;

[0095] Among them, the third threshold is greater than the fourth threshold, the fourth threshold is greater than the second threshold, the first speed value is greater than the second speed value, the second speed value is greater than the third speed value, and the first speed value, the second speed value and the third speed value are all greater than or equal to 0 and less than or equal to 1.

[0096] In this embodiment, after determining that the circulation state of the coolant is the first circulation state in which the coolant needs to flow through the radiator, since the greater the fan speed, the higher the cooling rate of the coolant, and thus the better the cooling effect of the air in the intercooler, the target speed of the fan in the radiator can be further determined based on the fourth difference.

[0097] Since the third threshold is greater than the fourth threshold, and the fourth threshold is greater than the second threshold, when the fourth difference is greater than the third threshold, it can be considered that the actual temperature of the coolant and the user's expected temperature are the most different, and the coolant needs to be cooled at a faster cooling rate; the target speed of the fan can be determined as the maximum first speed value.

[0098] When the fourth difference is greater than the fourth threshold and less than or equal to the third threshold, it can be considered that the actual temperature of the coolant is significantly different from the user's expected temperature, and the coolant needs to be cooled at a moderate cooling rate; the target speed of the fan can be determined as the second speed value in the middle.

[0099] When the fourth difference is greater than the second threshold and less than or equal to the fourth threshold, it can be considered that the actual temperature of the coolant is close to the user's expected temperature, and the coolant can be cooled at a slower cooling rate; the target speed of the fan can be determined as a lower third speed value.

[0100] For example, Figure 2 As shown, the second threshold is -3°C, the third threshold is 5°C, the fourth threshold is 0°C, the second difference between T0 and T2 is ΔT, the third difference between T0 and T3 is ΔTcal, and the fourth difference is (ΔTcal-ΔT). If ΔTcal-ΔT>5°C, the target speed of the fan is determined as the first speed value; if 0°C≤(ΔTcal-ΔT)<5°C, the target speed of the fan can be determined as the second speed value; if -3°C≤(ΔTcal-ΔT)<0°C, the target speed of the fan can be determined as the third speed value.

[0101] In addition, the fan speed can be controlled by adjusting the ratio of high and low levels output to the fan, that is, the duty cycle output to the fan. For example, a first speed value corresponds to a first duty cycle value, a second speed value corresponds to a second duty cycle value, and a third speed value corresponds to a third duty cycle value.

[0102] For example, the first duty cycle value is 100%, the third duty cycle value is 10%, and the second duty cycle value is C=9(ΔTcal-ΔT) / 50+10%.

[0103] This embodiment can determine the interval in which the fourth difference value is located to determine the gap between the actual temperature of the coolant and the user's expected temperature, and adjust the target speed of the fan in the radiator based on this, so as to control the cooling rate of the coolant and further accurately control the cooling effect of the intercooler.

[0104] As an optional embodiment, after determining the target circulation state of the coolant as the second circulation state when the fourth difference is less than or equal to the second threshold, the method further includes:

[0105] When it is detected that the fourth difference is greater than a fifth threshold, the target circulation state of the coolant is switched to the first circulation state, wherein the fifth threshold is between the first threshold and the third threshold.

[0106] In this embodiment, when the fourth difference is less than or equal to the second threshold value, after the circulation state of the coolant is determined to be the second circulation state, it is detected in real time whether the fourth difference is greater than the fifth threshold value. If it is detected that the fourth difference is greater than the fifth threshold value, it means that the actual temperature of the coolant is significantly different from the user's expected temperature, and the circulation state of the coolant can be switched from the second circulation state to the first circulation state.

[0107] In order to avoid frequent switching between the first cycle state and the second cycle state, the fifth threshold may be set to be greater than the second threshold.

[0108] Based on the air temperature control method provided in the above embodiment, the present application also provides a specific implementation of an air temperature control device. Please refer to the following embodiments.

[0109] See first Figure 3 The air temperature control device 200 provided in the embodiment of the present application includes the following modules:

[0110] an acquisition module 301 for acquiring a first temperature of a first air flow after being cooled by an intercooler, and a second temperature of a coolant in the intercooler, wherein the second temperature is the temperature of the coolant after the intercooler cools the first air flow;

[0111] a determination module 302 configured to determine a target operating parameter of the intercooler based on a comparison result between the first temperature and the second temperature, and a comparison result between the first temperature and a second target temperature, wherein the target operating parameter is used to adjust the temperature of the coolant, the target operating parameter including a target speed of a fan in the intercooler and / or a target circulation state of the coolant, and the second target temperature is a target temperature of the coolant;

[0112] The control module 303 is configured to control the intercooler based on the target operating parameter to control the temperature of the second air flow entering the intercooler.

[0113] After the first air flow is cooled in the intercooler, a first temperature of the first air flow flowing through the intercooler after cooling in the intercooler and a second temperature of the coolant in the intercooler after the first air flow is cooled can be obtained. Based on a comparison result between the first temperature and the second temperature, and a comparison result between the first temperature and the second target temperature, target operating parameters of the intercooler can be determined, and the operation of the intercooler can be controlled based on the target operating parameters, so as to control the temperature of the subsequent second air flow. Compared with the prior art, since the first temperature can reflect the cooling effect of the intercooler based on the result information of gas cooling, and the second temperature of the coolant after the gas is cooled can directly reflect the cooling effect of the intercooler, the first temperature and the second temperature are both indicator parameters that can reflect the cooling effect of the intercooler in real time. Taking into account the first temperature and the second temperature, the cooling effect of the intercooler can be more comprehensively reflected from two aspects: the temperature of the cooled gas and the temperature of the cooled coolant, in combination with the state of the coolant and the state of the gas after cooling. The target operating parameters of the intercooler are then calculated based on this. The target operating parameters include the target speed of the fan and / or the target circulation state of the coolant. The circulation state of the coolant and the speed of the fan can both control the cooling effect of the intercooler on the air flow by adjusting the temperature of the coolant. Therefore, by controlling the intercooler with the adjusted target operating parameters, the cooling effect of the intercooler can be adjusted in real time more accurately, thereby improving the temperature control effect of the intercooler on the air flow.

[0114] As an implementation of the present application, the above-mentioned determination module 302 may further include:

[0115] a first determining unit configured to determine a target circulation state of the coolant in the intercooler based on a first target temperature and the first temperature, the first target temperature being a target temperature of the first air flow after being cooled by the intercooler;

[0116] a second determining unit configured to determine, when the target circulation state of the coolant is a first circulation state, a target rotational speed of the fan in the intercooler based on a comparison result between the first temperature and the second temperature, and a comparison result between the first temperature and the second target temperature;

[0117] The first circulation state is the circulation process of the coolant flowing through the radiator, and the second target temperature is the target temperature of the coolant.

[0118] As an implementation of the present application, the first determining unit may further include:

[0119] a first determining subunit, configured to determine a first difference between the first temperature and the first target temperature;

[0120] The second determining subunit is configured to determine the target circulation state of the coolant as a second circulation state when the first difference is less than a first threshold, wherein the second circulation state is a circulation state in which the coolant does not flow through a radiator during its circulation process.

[0121] As an implementation of the present application, the first determining unit may also be used to:

[0122] If the first difference is greater than or equal to a first threshold, determining a second difference of the first temperature minus the second temperature, and a third difference of the first temperature minus the second target temperature;

[0123] determining a fourth difference value by subtracting the second difference value from the third difference value;

[0124] When the fourth difference is less than or equal to a second threshold, determining the target circulation state of the coolant to be a second circulation state;

[0125] When the fourth difference is greater than a second threshold, the target circulation state of the coolant is determined to be the first circulation state.

[0126] As an implementation of the present application, the determination module 302 may also be used to:

[0127] When the fourth difference is greater than a third threshold, determining the target speed of the fan as the first speed value;

[0128] When the fourth difference is less than or equal to the third threshold and greater than the fourth threshold, determining the target speed of the fan as a second speed value associated with the fourth difference;

[0129] When the fourth difference is greater than the second threshold and less than or equal to the fourth threshold, determining the target speed of the fan as a third speed value;

[0130] Among them, the third threshold is greater than the fourth threshold, the fourth threshold is greater than the second threshold, the first speed value is greater than the second speed value, the second speed value is greater than the third speed value, and the first speed value, the second speed value and the third speed value are all greater than or equal to 0 and less than or equal to 1.

[0131] As an implementation of the present application, the determination module 302 may also be used to:

[0132] When it is detected that the fourth difference is greater than a fifth threshold, the target circulation state of the coolant is switched to the first circulation state, wherein the fifth threshold is between the first threshold and the third threshold.

[0133] The air temperature control device provided in the embodiment of the present invention can implement each step in the above method embodiment, and to avoid repetition, they are not described here.

[0134] Figure 4 A schematic diagram of the hardware structure of the air temperature control device provided in an embodiment of the present application is shown.

[0135] The air temperature control device may include a processor 401 and a memory 402 storing computer program instructions.

[0136] Specifically, the processor 401 may include a central processing unit (CPU), or an application-specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application.

[0137] Memory 402 may include a large capacity memory for data or instructions. By way of example and not limitation, memory 402 may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive, or a combination of two or more of these. Where appropriate, memory 402 may include removable or non-removable (or fixed) media. Where appropriate, memory 402 may be inside or outside the integrated gateway disaster recovery device. In a specific embodiment, memory 402 is a non-volatile solid-state memory.

[0138] The memory may include read-only memory (ROM), random access memory (RAM), magnetic disk storage media devices, optical storage media devices, flash memory devices, electrical, optical or other physical / tangible memory storage devices. Thus, generally, the memory includes one or more tangible (non-transitory) computer-readable storage media (e.g., memory devices) encoded with software including computer-executable instructions, and when the software is executed (e.g., by one or more processors), it is operable to perform the operations described with reference to the method according to an aspect of the present disclosure.

[0139] The processor 401 reads and executes computer program instructions stored in the memory 402 to implement any one of the air temperature control methods in the above embodiments.

[0140] In one example, the air temperature control device may further include a communication interface 403 and a bus 410. Figure 4 As shown, the processor 401 , the memory 402 , and the communication interface 403 are connected via a bus 410 and communicate with each other.

[0141] The communication interface 403 is mainly used to implement communication between various modules, devices, units and / or equipment in the embodiments of the present application.

[0142] Bus 410 includes hardware, software or both, and the parts of the temperature control device of air are coupled to each other.For example, but not limitation, bus may include accelerated graphics port (AGP) or other graphics bus, enhanced industry standard architecture (EISA) bus, front side bus (FSB), hypertransport (HT) interconnection, industry standard architecture (ISA) bus, infinite bandwidth interconnection, low pin count (LPC) bus, memory bus, micro channel architecture (MCA) bus, peripheral component interconnection (PCI) bus, PCI-Express (PCI-X) bus, serial advanced technology attachment (SATA) bus, video electronics standard association local (VLB) bus or other suitable bus or two or more of these combinations. In appropriate cases, bus 410 may include one or more buses. Although the present application embodiment describes and shows specific bus, the application considers any suitable bus or interconnection.

[0143] The air temperature control device may be based on the above embodiment, thereby realizing the air temperature control method and apparatus combined with the above embodiment.

[0144] In addition, in combination with the air temperature control method in the above embodiment, the embodiment of the present application may provide a computer storage medium for implementation. The computer storage medium stores computer program instructions; when the computer program instructions are executed by the processor, any one of the air temperature control methods in the above embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here. Among them, the above-mentioned computer-readable storage medium may include a non-transitory computer-readable storage medium, such as a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc., which is not limited here.

[0145] In addition, an embodiment of the present application also provides a vehicle, including computer program instructions, which, when executed by a processor, can implement the steps and corresponding contents of the aforementioned method embodiment.

[0146] It should be understood that the present application is not limited to the specific configurations and processes described above and illustrated in the figures. For the sake of brevity, a detailed description of known methods is omitted here. In the above embodiments, several specific steps are described and illustrated as examples. However, the method process of the present application is not limited to the specific steps described and illustrated. Those skilled in the art can make various changes, modifications, and additions, or change the order of the steps after understanding the spirit of the present application.

[0147] The functional blocks shown in the above block diagram can be implemented as hardware, software, firmware or a combination thereof. When implemented in hardware, they can be, for example, electronic circuits, application specific integrated circuits (ASICs), appropriate firmware, plug-ins, function cards, etc. When implemented in software, the elements of the present application are programs or code segments that are used to perform the required tasks. Programs or code segments can be stored in machine-readable media, or transmitted on a transmission medium or a communication link by a data signal carried in a carrier wave. "Machine-readable media" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROMs, flash memories, erasable ROMs (EROMs), floppy disks, CD-ROMs, optical disks, hard disks, optical fiber media, radio frequency (RF) links, etc. The code segments can be downloaded via computer networks such as the Internet, intranets, etc.

[0148] It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, this application is not limited to the order of the above steps. In other words, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

[0149] Aspects of the present disclosure are described above with reference to the flowcharts and / or block diagrams of the methods, devices and vehicles according to the embodiments of the present disclosure. It should be understood that each box in the flowchart and / or block diagram and the combination of the boxes in the flowchart and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device to produce a machine so that these instructions executed by the processor of the computer or other programmable data processing device enable the implementation of the functions / actions specified in one or more boxes in the flowchart and / or block diagram. Such a processor can be, but is not limited to, a general-purpose processor, a special-purpose processor, a special application processor or a field programmable logic circuit. It can also be understood that each box in the block diagram and / or flowchart and the combination of the boxes in the block diagram and / or flowchart can also be implemented by dedicated hardware that performs the specified function or action, or can be implemented by a combination of dedicated hardware and computer instructions.

[0150] The above is only a specific implementation method of the present application. Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the scope of protection of the present application is not limited to this. Any technician familiar with this technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the scope of protection of this application.

Claims

1. A method for controlling air temperature, characterized in that: The method comprises: acquiring a first temperature of a first air flow after being cooled by an intercooler, and a second temperature of a coolant in the intercooler, wherein the second temperature is the temperature of the coolant after the intercooler cools the first air flow; determining a target operating parameter of the intercooler based on a comparison result between the first temperature and the second temperature, and a comparison result between the first temperature and a second target temperature, wherein the target operating parameter is used to adjust the temperature of the coolant, the target operating parameter includes a target speed of a fan in the intercooler and / or a target circulation state of the coolant, and the second target temperature is a target temperature of the coolant; The intercooler is controlled based on the target operating parameter to control the temperature of the second air flow entering the intercooler.

2. The air temperature control method according to claim 1, characterized in that: The determining the target operating parameter of the intercooler based on the comparison result between the first temperature and the second temperature, and the comparison result between the first temperature and the second target temperature, includes: determining a target circulation state of the coolant in the intercooler based on a first target temperature and the first temperature, the first target temperature being a target temperature of the first air flow after being cooled by the intercooler; determining a target rotational speed of a fan in the intercooler based on a comparison result between the first temperature and the second temperature, and a comparison result between the first temperature and a second target temperature, when the target circulation state of the coolant is a first circulation state; The first circulation state is the circulation process of the coolant flowing through the radiator, and the second target temperature is the target temperature of the coolant.

3. The air temperature control method according to claim 2, characterized in that: The determining of the target circulation state of the coolant in the intercooler based on the first target temperature and the first temperature includes: determining a first difference of the first temperature minus the first target temperature; When the first difference is smaller than a first threshold, the target circulation state of the coolant is determined to be a second circulation state, wherein the second circulation state is a circulation process of the coolant not flowing through a radiator.

4. The air temperature control method according to claim 3, characterized in that: After determining the first difference between the first temperature and the first target temperature, the method further includes: If the first difference is greater than or equal to a first threshold, determining a second difference of the first temperature minus the second temperature, and a third difference of the first temperature minus the second target temperature; determining a fourth difference value by subtracting the second difference value from the third difference value; When the fourth difference is less than or equal to a second threshold, determining the target circulation state of the coolant to be a second circulation state; When the fourth difference is greater than a second threshold, the target circulation state of the coolant is determined to be the first circulation state.

5. The air temperature control method according to claim 4, characterized in that: The method of determining the target rotation speed of the fan in the intercooler based on a comparison result between the first temperature and the second temperature and a comparison result between the first temperature and the second target temperature when the target circulation state of the coolant is the first circulation state includes: When the fourth difference is greater than a third threshold, determining the target speed of the fan as the first speed value; When the fourth difference is less than or equal to the third threshold and greater than the fourth threshold, determining the target speed of the fan as a second speed value associated with the fourth difference; When the fourth difference is greater than the second threshold and less than or equal to the fourth threshold, determining the target speed of the fan as a third speed value; Among them, the third threshold is greater than the fourth threshold, the fourth threshold is greater than the second threshold, the first speed value is greater than the second speed value, the second speed value is greater than the third speed value, and the first speed value, the second speed value and the third speed value are all greater than or equal to 0 and less than or equal to 1.

6. The air temperature control method according to claim 4, characterized in that: After determining the target circulation state of the coolant to be the second circulation state when the fourth difference is less than or equal to the second threshold, the method further includes: When it is detected that the fourth difference is greater than a fifth threshold, the target circulation state of the coolant is switched to the first circulation state, wherein the fifth threshold is between the first threshold and the third threshold.

7. An air temperature control device, characterized in that: The device comprises: an acquisition module, configured to acquire a first temperature of the first air flow after being cooled by an intercooler, and a second temperature of the coolant in the intercooler, wherein the second temperature is the temperature of the coolant after the intercooler cools the first air flow; a determination module, configured to determine a target operating parameter of the intercooler based on a comparison result between the first temperature and the second temperature, and a comparison result between the first temperature and a second target temperature, wherein the target operating parameter is used to adjust the temperature of the coolant, the target operating parameter including a target speed of a fan in the intercooler and / or a target circulation state of the coolant, and the second target temperature is a target temperature of the coolant; A control module is configured to control the intercooler based on the target operating parameter to control a temperature of a second air flow entering the intercooler.

8. An air temperature control device, characterized in that: The air temperature control device includes: a processor and a memory storing computer program instructions; When the processor executes the computer program instructions, the air temperature control method according to any one of claims 1 to 6 is implemented.

9. A computer storage medium, characterized in that The computer storage medium stores computer program instructions, which, when executed by a processor, implement the air temperature control method according to any one of claims 1 to 6.

10. A vehicle, characterized in that: The vehicle includes computer program instructions, and when the computer program instructions are executed by a processor, the air temperature control method according to any one of claims 1 to 6 is implemented.

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