Cooling control method and apparatus of vehicle system, electronic device, and vehicle

Abstract

A cooling control method and apparatus of a vehicle system, an electronic device, and a vehicle. The cooling control method of the vehicle system comprises: determining a target control parameter on the basis of speed information; and performing cooling control on the vehicle on the basis of the target control parameter. By means of the cooling control method of the vehicle system, the objectives of optimizing the cooling energy consumption of the vehicle system, reasonably saving energy, increasing the energy utilization rate, and then increasing the driving range of the vehicle can be achieved.

Description

Cooling control method and device for vehicle system, electronic equipment and vehicle

[0001] This application claims priority to the patent application filed with the China Patent Office on September 25, 2023, with application number 202311244716.1 and titled “A cooling control method, device, electronic device and vehicle for a vehicle system,” all contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of automotive technology, and in particular to a cooling control method and device for a vehicle system, an electronic device, and a vehicle. Background Art

[0003] During the driving process of the vehicle, the vehicle's power system and transmission system will generate a large amount of heat. In order to ensure the safety performance of the power system and transmission system, the vehicle's power system and transmission system need to be promptly dissipated, or in other words, the vehicle's power system and transmission system need to be promptly cooled.

[0004] Currently, when cooling a vehicle's power system and transmission system, target control parameters are usually determined based on the inlet water temperature of the water circuit. This approach is relatively conservative and has the problem of insufficiently optimized cooling energy consumption.

[0005] Summary of the Invention

[0006] In view of this, the purpose of this application is to propose a cooling control method, device, electronic equipment and vehicle for a vehicle system, aiming to optimize the cooling energy consumption of the vehicle system, reasonably save energy, improve energy utilization, and thereby increase the vehicle's cruising range.

[0007] Based on the above objectives, in a first aspect, the present application provides a cooling control method for a vehicle system, comprising:

[0008] Determine target control parameters based on speed information;

[0009] The vehicle is cooled and controlled according to target control parameters.

[0010] Based on the above purpose, in a second aspect, the present application further provides a cooling control device for a vehicle system, comprising: a processor, wherein the processor is configured to execute the following program modules stored in a memory:

[0011] The determination module is configured to: determine a target control parameter according to the speed information;

[0012] The control module is configured to: perform cooling control on the vehicle according to the target control parameter.

[0013] Based on the above purpose, in a third aspect, the present application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and runnable on the processor, and when the processor executes the program, it implements the cooling control method of the vehicle system as described in the first aspect above.

[0014] Based on the above purpose, in a fourth aspect, the present application also provides a vehicle, including the electronic device as described in the third aspect above.

[0015] As can be seen from the above, the vehicle system cooling control method provided in this application first determines target control parameters based on vehicle speed information, and then controls vehicle cooling based on the target control parameters. Speed ​​information can reflect the vehicle's power performance, which in turn is related to the vehicle's heat generation. Therefore, by determining the target control parameters based on speed information, the accuracy of the target control parameters can be improved, thereby achieving optimal cooling of the vehicle, thereby optimizing the vehicle system's cooling energy consumption, reasonably conserving energy, and improving energy utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG1 is a schematic flow chart of a cooling control method for a vehicle system according to an embodiment of the present application;

[0017] FIG2 is a schematic structural diagram of a cooling control device for a vehicle system according to an embodiment of the present application;

[0018] FIG3 is a schematic diagram of the hardware structure of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0019] In some embodiments, FIG1 illustrates a schematic flow chart of a cooling control method for a vehicle system. This cooling control method can be executed by a corresponding cooling control device for the vehicle system, which can be implemented via software and / or hardware. The cooling control device can be deployed on the vehicle or on a cloud or server that communicates with the vehicle.

[0020] As shown in FIG1 , the cooling control method of the vehicle system includes the following steps:

[0021] S110: Determine target control parameters according to speed information.

[0022] S120 : Perform cooling control on the vehicle according to the target control parameters.

[0023] Speed ​​information can refer to the vehicle's current actual speed or the speed limit for the road section the vehicle is currently traveling on. The vehicle's current actual speed reflects the vehicle's power. For example, a higher actual speed indicates sufficient power, while a lower actual speed indicates less power. When the vehicle has sufficient power, the heat generated by the vehicle's systems (such as the powertrain and transmission) is higher. Therefore, the vehicle's current actual speed can reflect the current level of heat generation. The speed limit for the road section the vehicle is currently traveling on can impose certain restrictions on the driver's driving behavior. For example, if the speed limit indicates a maximum speed of 30 km / h, it can be inferred that the driver will not engage in aggressive driving, the vehicle system will operate relatively smoothly, and there will be no significant increase in heat generation. In summary, determining target control parameters based on speed information can improve the rationality of these target control parameters, thereby optimizing cooling energy consumption, saving energy, improving energy utilization, and ensuring vehicle system safety.

[0024] In some embodiments, the speed information includes the current actual speed of the vehicle, and determining the target control parameter based on the speed information includes:

[0025] determining a first control parameter according to the current actual speed of the vehicle;

[0026] The first control parameter is determined as the target control parameter.

[0027] Among them, the current actual speed of the vehicle can reflect the power strength of the vehicle. For example, when the actual speed is high, the vehicle has sufficient power, and when the actual speed is low, the vehicle has weak power. When the vehicle has sufficient power, the heat generation of the vehicle system (such as the power system, transmission system, etc.) is high. At this time, in order to ensure the safety of the vehicle system, the vehicle system needs to be cooled to a higher degree, or the cooling capacity of the vehicle cooling system needs to be increased to quickly cool the vehicle system and ensure the safety of the vehicle system. When the vehicle has weak power, the heat generation of the vehicle system is low. At this time, the vehicle system can be cooled to a lower degree, or the cooling capacity of the vehicle cooling system needs to be reduced, or the start time of the cooling function needs to be delayed to achieve energy saving. Therefore, by determining the first control parameter according to the current actual speed of the vehicle; and determining the first control parameter as the target control parameter, the rationality of the target control parameter can be improved, which is conducive to optimizing cooling energy consumption, achieving energy saving, and ensuring the safety of the vehicle system.

[0028] In some embodiments, the speed information includes the current actual speed of the vehicle and the maximum speed allowed by the road section where the vehicle is currently located. Determining the target control parameter based on the speed information includes:

[0029] determining a first control parameter according to the current actual speed of the vehicle;

[0030] Determining a second control parameter according to the maximum speed allowed by the road section where the vehicle is currently located;

[0031] A target control parameter is determined according to the first control parameter and the second control parameter.

[0032] The speed limit information for the road section the vehicle is currently on will impose certain restrictions on the driver's driving behavior. For example, if the speed limit information states that the maximum speed cannot exceed 20 km / h, it can be inferred that the driver will not engage in aggressive driving behavior, and the vehicle system will operate relatively smoothly without a sharp increase in vehicle heat generation. However, aggressive drivers may sometimes engage in aggressive driving behavior on speed-limited roads. Therefore, to more effectively cool the vehicle system, this embodiment simultaneously references the speed limit information for the speed-limited road section and the vehicle's current actual speed to determine the target control parameters. This ensures the rationality and accuracy of the target control parameters, thereby achieving more effective cooling of the vehicle system.

[0033] Furthermore, determining the target control parameter according to the first control parameter and the second control parameter includes:

[0034] The control parameter corresponding to the larger cooling capacity between the first control parameter and the second control parameter is determined as the target control parameter; or the average value of the first control parameter and the second control parameter is determined as the target control parameter.

[0035] The greater the cooling capacity, the higher the cooling energy consumption; conversely, the smaller the cooling capacity, the lower the cooling energy consumption. By determining the control parameter corresponding to the greater cooling capacity as the target control parameter, vehicle system safety can be prioritized, thereby achieving cooling energy savings. By determining the average of the first and second control parameters as the target control parameter, the precision and accuracy of the target control parameter can be further improved, thereby improving the degree of optimization of cooling energy consumption, increasing energy savings, and ensuring vehicle system safety.

[0036] For example, a first control parameter corresponding to the vehicle's current actual speed can be determined based on a predetermined correspondence between the vehicle speed and the parameter; a second control parameter corresponding to the maximum speed allowed by the vehicle's current road section can be determined based on a predetermined correspondence between the vehicle speed and the parameter.

[0037] In some embodiments, determining the target control parameter based on the speed information includes:

[0038] Determine whether the vehicle's current driving information is preset information;

[0039] If the current driving information of the vehicle is preset information, determining candidate control parameters that match the preset information based on the speed information;

[0040] A target control parameter is determined based on the candidate control parameters.

[0041] The preset information indicates that the vehicle is operating smoothly, the heat generation of the vehicle's heat-generating components is moderate, and the driver is not prone to aggressive driving behavior. Aggressive driving behavior may include sudden acceleration or deceleration. Before determining candidate control parameters based on speed information, a determination is made as to whether the vehicle's current driving information corresponds to the preset information. If so, the candidate control parameters are determined based on the speed information. This is done to achieve cooling energy savings while ensuring the safety of the vehicle's heat-generating components.

[0042] In other words, when the vehicle's current driving information is the preset information, it indicates that the user is not likely to engage in aggressive driving behaviors such as sudden acceleration and deceleration. In this case, the start-up time of the cooling function can be delayed, and / or the cooling capacity can be reduced (when the cooling capacity is reduced, the cooling energy consumption is reduced accordingly), thereby achieving the purpose of reducing cooling energy consumption, realizing reasonable optimization of cooling energy consumption, and ensuring the vehicle's cruising range. The above process can also be understood as: first, based on the vehicle's current driving information and the preset information, a low-load section is screened. When the vehicle is in a low-load section, it indicates that the user is not likely to engage in aggressive driving behaviors such as sudden acceleration and deceleration. In this case, the start-up time of the cooling function can be delayed, and / or the cooling capacity can be reduced (when the cooling capacity is reduced, the cooling energy consumption is reduced accordingly), thereby achieving the purpose of reducing cooling energy consumption.

[0043] Exemplarily, the preset information includes one or more of the following:

[0044] The vehicle is on a road with a speed limit;

[0045] The vehicle is on a rural road;

[0046] The vehicle is on a road section where the distance to a preset waypoint or a preset destination is less than a distance threshold;

[0047] The vehicle is on a congested road section or on an adjacent road section whose distance to the congested road section is less than the distance threshold;

[0048] The vehicle is inside the tunnel;

[0049] The vehicle is on a downhill slope;

[0050] The vehicle is on a downhill road and the road slope is greater than the slope threshold;

[0051] The vehicle is in a parked state;

[0052] The current weather is rainy, foggy, or snowy;

[0053] The actual vehicle speed is less than the speed threshold.

[0054] Specifically, when a vehicle is on a speed-limited road, driving is typically smooth and less prone to sudden acceleration or deceleration. Therefore, speed-limited roads can be considered low-load sections. Rural roads are often narrow, crowded, and complex, with speed limits often imposed for safety. Drivers also drive cautiously, resulting in less sudden acceleration or deceleration. Therefore, rural roads can also be considered low-load sections. When a vehicle approaches a waypoint (such as a service area) or a destination, drivers typically choose to maintain a constant speed or decelerate slowly in preparation for stopping. Therefore, these scenarios are relatively smooth and likely indicate a near-stop for rest, making them suitable for activating the delayed cooling function. When a vehicle is on or near a congested road, its actual speed is often limited, and the vehicle crawls along the congested road at a lower speed. During this time, heat generation from the vehicle's heat-generating components is relatively low, making congested roads more suitable for low-load sections. Similarly, when a vehicle is in a tunnel, due to clear speed limits, sudden acceleration is unlikely, resulting in relatively smooth driving. Therefore, tunnels are suitable for low-load sections. When a vehicle is on a downhill road, or in rainy, foggy, or snowy conditions, sudden acceleration is less likely to occur. Therefore, downhill roads, rainy, foggy, or snowy conditions are all suitable for low-load scenarios. By comprehensively considering various road conditions encountered in daily driving, as many low-load sections as possible are selected, providing a foundation for optimizing cooling energy consumption and achieving a high level of cooling energy optimization for the entire vehicle.

[0055] In particular, the vehicle's current driving information may belong to multiple preset information at the same time, and each preset information corresponds to a matching candidate control parameter. For example, the road section the vehicle is currently on is both a speed-limited section and a rural section. There are matching candidate control parameters corresponding to the speed-limited section, and there are matching candidate control parameters corresponding to the rural section. In this scenario, the target control parameter is determined based on the candidate control parameters that match each preset information. For example, any one of the candidate control parameters that match each preset information is determined as the target control parameter, or the largest of the candidate control parameters that match each preset information is determined as the target control parameter, or the smallest of the candidate control parameters that match each preset information is determined as the target control parameter. Furthermore, when the vehicle approaches the destination, since the vehicle is about to stop, a cooling parameter with a smaller cooling capacity can be used as the target control parameter. At this time, the smallest of the candidate control parameters that match each preset information can be determined as the target control parameter. When a vehicle is on a downhill road with a large slope, although few drivers will perform aggressive driving behaviors such as sudden acceleration, some conservative drivers will choose to brake appropriately. At this time, the vehicle will generate a certain amount of heat. Therefore, in this scenario, the maximum of the candidate control parameters that match each preset information can be selected as the target control parameter.

[0056] In summary, when there are multiple preset information, determining the target control parameter based on the candidate control parameters includes:

[0057] The candidate control parameter that matches any one of the multiple preset information is determined as the target control parameter; or, the candidate control parameter corresponding to the smaller cooling capacity among the candidate control parameters that match the multiple preset information is determined as the target control parameter to achieve the purpose of energy saving.

[0058] In some embodiments, in addition to the candidate control parameters that match each preset information, a set of candidate control parameters can also be determined based on the actual speed of the vehicle. Generally speaking, the speed information includes the current actual speed of the vehicle. The candidate control parameters that match the preset information are determined based on the speed information, including:

[0059] A first control parameter is determined according to the current actual speed of the vehicle; and a candidate control parameter is determined according to the first control parameter and a preset control parameter that matches the preset information.

[0060] The first control parameter corresponding to the current actual speed of the vehicle may be determined based on the corresponding relationship between the vehicle speed and the control parameter.

[0061] Determining a candidate control parameter according to the first control parameter and a preset control parameter matching the preset information includes:

[0062] The first control parameter and the control parameter corresponding to the greater cooling capacity among the preset control parameters are determined as candidate control parameters. Since the vehicle has more power when the actual vehicle speed is higher, the heat generation of each heat-generating component is at a higher level. Therefore, to ensure the safety performance of each heat-generating component of the vehicle, the control parameter determined by the actual vehicle speed and the control parameter corresponding to the greater cooling capacity among the preset control parameters are determined as candidate control parameters. This allows for sufficient cooling of the vehicle and prevents the temperature of each heat-generating component from rising to a high value, thereby ensuring the safety performance of each heat-generating component. Furthermore, in some special scenarios, such as when the vehicle is traveling on a steep downhill road, the vehicle's heat generation is high. To ensure vehicle safety, a set of preset control parameters with greater cooling capacity can be set for this scenario. The one with greater cooling capacity is selected as the candidate control parameter from the first control parameter determined by the actual vehicle speed and the preset control parameter.

[0063] Alternatively, determining the candidate control parameter according to the first control parameter and a preset control parameter that matches the preset information includes:

[0064] The first control parameter and the preset control parameter are both determined as candidate control parameters, and then the target control parameter is determined from the candidate control parameters.

[0065] In particular, when the vehicle is parked, for example, when the actual speed is less than 5 km / h, matching preset control parameters can be set separately to achieve energy saving. When the vehicle is on a steep downhill section, matching preset control parameters can be set separately to ensure cooling performance.

[0066] In some embodiments, the speed information includes not only the current actual speed of the vehicle, but also the maximum speed allowed by the current road section of the vehicle. In this case, a set of control parameters can be determined based on the actual speed and the maximum speed respectively, and candidate control parameters can be determined based on the two sets of control parameters, or candidate control parameters can be determined based on the two sets of control parameters and preset control parameters that match the preset information.

[0067] Exemplarily, the speed information includes the current actual speed of the vehicle and the maximum speed allowed by the road section where the vehicle is currently located. Determining candidate control parameters that match the preset information based on the speed information includes:

[0068] The first control parameter is determined based on the current actual speed of the vehicle, the second control parameter is determined based on the maximum speed allowed by the current road section of the vehicle, the candidate control parameter is determined based on the first control parameter and the second control parameter, or the candidate control parameter is determined based on the first control parameter, the second control parameter and a preset control parameter that matches the preset information.

[0069] Determining a candidate control parameter according to the first control parameter and the second control parameter includes:

[0070] The control parameter corresponding to the greater cooling capacity of the first and second control parameters is determined as the candidate control parameter. Because the vehicle's actual speed may reach the maximum speed allowed by the road section it is currently traveling on, selecting the control parameter corresponding to the greater cooling capacity as the candidate control parameter in this scenario can ensure the safety of the vehicle's heat-generating components.

[0071] Determining a candidate control parameter according to the first control parameter, the second control parameter, and a preset control parameter matching the preset information includes:

[0072] The control parameter corresponding to the greater cooling capacity among the first control parameter, the second control parameter, and the preset control parameter is determined as a candidate control parameter. By selecting the control parameter corresponding to the greater cooling capacity as the candidate control parameter, the safety of each heat-generating component of the vehicle can be ensured.

[0073] Exemplarily, the cooling method for a vehicle's powertrain and transmission system includes water cooling, which uses coolant as a medium. Heat is transferred from heat-generating components such as the engine, transmission, and motor to the coolant. The flow of the coolant removes the heat and dissipates it into the atmosphere through a radiator. The cooled, low-temperature coolant then flows back to the aforementioned components to absorb heat, completing the cooling cycle. Whether in a fuel-powered vehicle, a hybrid vehicle, or a pure electric vehicle, the components of a water-cooled cooling system primarily include a water pump, a fan, a radiator, and an AGS (Active Grill Shutter). Proper control of the various components of the cooling system is key to ensuring the safety performance and energy optimization of the vehicle's powertrain and transmission system. Therefore, when the cooling method is water cooling, the target control parameters include one or more of the water pump speed, the fan speed, and the grille opening. When the cooling method changes, the specific meaning of the target control parameters also changes. Generally speaking, the target control parameters include the parameters of the functional components used to cool the vehicle. Taking the water-cooled cooling system as an example, the functional components for cooling the vehicle include a water pump, a fan and an air intake grille. The air intake grille is usually set on the windward side of the front end of the vehicle. By controlling the opening of the air intake grille, the air flow entering the engine compartment from the windward side of the front end of the vehicle can be adjusted, and the heat from the engine compartment is dissipated by utilizing the air flowing into the engine compartment.

[0074] Determine target control parameters based on speed information, including:

[0075] Obtain the vehicle's current water pump speed, fan speed and / or air intake grille opening, and determine the correction parameters corresponding to the speed information based on the correspondence between the speed information and the correction parameters; correct the vehicle's current water pump speed, fan speed and / or air intake grille opening based on the correction parameters to obtain corrected water pump speed, fan speed and / or air intake grille opening; and use the corrected water pump speed, fan speed and / or air intake grille opening as target control parameters.

[0076] Among them, the general unit of water pump speed and fan speed is r / min, but in actual application, the accuracy does not need to reach "r", so in order to reduce the difficulty of implementation, in actual application, the water pump speed and fan speed are usually expressed as percentages. Taking the component to be cooled as a motor and the cooling system as a water-cooled system as an example, the current water pump speed, fan speed and / or air intake grille opening of the vehicle are obtained, including: according to the water temperature at the motor inlet (the water temperature can be obtained by detecting through a temperature sensor), the corresponding water pump speed, fan speed and / or air intake grille opening are determined by looking up a table (as shown in Table 1). That is, the current water pump speed, fan speed and / or air intake grille opening of the vehicle are obtained, including: according to the current water temperature at the motor inlet, the current water pump speed, fan speed and / or air intake grille opening of the vehicle are obtained.

[0077] Table 1

[0078] It can be seen from the data in Table 1 that the cooling system gradually begins to increase the cooling capacity after the motor inlet water temperature is greater than 45°C. The purpose is to prevent the driver from suddenly having intense driving behaviors such as frequent acceleration and deceleration. If the cooling capacity is increased too late (untimely reaction), it is easy to cause the motor inlet water temperature to quickly overheat, thereby affecting the performance of the motor. Therefore, the cooling control strategy using the control parameters shown in Table 1 is actually a relatively conservative cooling control strategy. There is still room for optimizing cooling energy consumption. For example, when the user does not have intense driving behaviors such as frequent acceleration and deceleration, the cooling capacity increase time can be delayed, or the cooling capacity can be reduced. In response to this, the embodiment of the present application uses the vehicle's driving information to identify the current and forward road condition information, and then screens out low-load sections (i.e., sections where users are not prone to intense driving behaviors), delays the cooling capacity increase time on the screened low-load sections, or reduces the cooling capacity, or extends the duration of low cooling capacity, etc., thereby achieving the purpose of reducing cooling energy consumption and ensuring vehicle safety. Specifically, in the embodiments of the present application, based on the correspondence between speed information and correction parameters, a correction parameter corresponding to the speed information is determined. Then, based on the correction parameter, the conservative control parameter is corrected to obtain a target control parameter that can achieve energy conservation. Taking the fan speed as an example, the conservative control parameter can be corrected based on the correction parameter by multiplying the conservative control parameter by a percentage to obtain the target control parameter, or by subtracting a value from the conservative control parameter to obtain the target control parameter. The goal is to reduce the size of the control parameter so that the target control parameter is smaller than the conservative control parameter, thereby achieving energy conservation. The specific reduction can be determined through calibration using a specific calibration method to achieve energy conservation while ensuring the safety performance of the motor.

[0079] Exemplarily, the vehicle's current water pump speed, fan speed, and / or intake grille opening are corrected according to the correction parameters to obtain the corrected water pump speed, fan speed, and / or intake grille opening, including:

[0080] The vehicle's current water pump speed, fan speed, and / or intake grille opening are corrected based on the following formula:

[0081] R pump '=R pump ×A1-B1;

[0082] R fan '=R fan ×A2-B2;

[0083] D ags '=D ags×A3-C1;

[0084] Among them, A1, A2, A3, B1, B2 and C1 are correction parameters, which are predetermined by calibration method; R pump Indicates the vehicle's current water pump speed, R fan Indicates the current fan speed of the vehicle, D ags Indicates the vehicle's current air intake grille opening, R pump ' represents the corrected pump speed, R fan ' represents the corrected fan and water pump speed, D ags ' represents the corrected intake grille opening.

[0085] A1, A2 and A3 are numbers between [0, 1]; if the vehicle's current water pump speed R pump And the vehicle's current fan speed R fan The unit is r / min, then B1 and B2 are positive integers; if the vehicle's current water pump speed R pump And the vehicle's current fan speed R fan If it is expressed in the form of percentage, then B1 and B2 are decimals within 1, or percentages less than 100%.

[0086] The formula for correcting the vehicle's current water pump speed, fan speed and / or intake grille opening is not limited to the above-mentioned linear formula, but may also be a nonlinear formula, which can be specifically determined by calibration.

[0087] Furthermore, the speed information includes the actual speed of the vehicle, and obtaining the current water pump speed, fan speed, and / or intake grille opening of the vehicle, and determining the correction parameters corresponding to the speed information based on the corresponding relationship between the speed information and the correction parameters, includes:

[0088] The vehicle's current actual speed is obtained; a determination is made as to whether the actual speed is within a preset speed range; if so, the vehicle's current water pump speed, fan speed, and / or air intake grille opening are obtained, and correction parameters corresponding to the actual speed are determined based on the correspondence between the speed information and the correction parameters. By limiting the acquisition and correction of the vehicle's current water pump speed, fan speed, and / or air intake grille opening to only when the actual speed is within the preset speed range, energy-saving operation is achieved while ensuring vehicle safety. If the vehicle's actual speed exceeds the preset speed range, subsequent correction operations are not performed, and cooling control can be performed directly according to the vehicle's current water pump speed, fan speed, and / or air intake grille opening, thereby providing greater cooling capacity at higher actual speeds, allowing the vehicle's heat-generating components to be adequately cooled, thereby ensuring vehicle safety.

[0089] It is understandable that the higher the actual speed of the vehicle, the higher the operating intensity of the vehicle power system, and the corresponding greater the heat generation; in other words, the higher the actual speed of the vehicle, the greater the heat dissipation demand, and the greater the cooling capacity required (at the same time, the greater the cooling capacity, the higher the cooling energy consumption). Therefore, in some embodiments of the present application, the corresponding optimization level is first set according to the actual speed of the vehicle. The lower the optimization level, the lower the energy consumption when controlling the electronic cooling components of the vehicle according to the control parameters associated with the optimization level. For example, refer to the corresponding relationship between speed information (including the actual speed of the vehicle and the maximum speed allowed for the speed-limited section) and the optimization level as shown in Table 2.

[0090] Table 2

[0091] The maximum allowed speed and the actual speed are independent of each other, as some drivers may exceed the speed limit. As can be seen from Table 2, when the maximum allowed speed on a speed-limited road is 20 km / h, the corresponding optimization level is level 1; when the maximum allowed speed on a speed-limited road is 40 km / h, the corresponding optimization level is level 2; when the maximum allowed speed on a speed-limited road is 60 km / h, the corresponding optimization level is level 3; and when the maximum allowed speed on a speed-limited road is 80 km / h, the corresponding optimization level is level 4. When the maximum allowed speed on a speed-limited road is greater than 80 km / h, the corresponding optimization level is level 5. If the actual speed of the vehicle is less than 25km / h, the corresponding optimization level is level one; if the actual speed of the vehicle is greater than or equal to 25km / h and less than 45km / h, the corresponding optimization level is level two; if the actual speed of the vehicle is greater than or equal to 45km / h and less than 60km / h, the corresponding optimization level is level three; if the actual speed of the vehicle is greater than or equal to 60km / h and less than 80km / h, the corresponding optimization level is level four; if the actual speed of the vehicle is greater than or equal to 80km / h, the corresponding optimization level is level five.

[0092] In particular, the above Table 2 exemplarily shows a correspondence between speed information and optimization levels, and each vehicle speed threshold (eg, 25, 45, 60, 80) in the correspondence can be determined by calibration.

[0093] Exemplarily, when the correction parameters A1, A2, and A3 are the same, B1, B2, and C1 increase as the optimization level decreases. For example, when the optimization level is level four, B1=10%, B2=10%, and C1=10; when the optimization level is level three, B1=20%, B2=20%, and C1=20; when the optimization level is level two, B1=30%, B2=30%, and C1=30; when the optimization level is level one, B1=40%, B2=40%, and C1=40.

[0094] For example, when the in-vehicle navigation ends because the vehicle approaches a waypoint or a destination, if the vehicle's driving conditions cannot be tracked by other means except navigation information, the vehicle can be cooled according to the target control parameters for a preset period of time (for example, 10 minutes) and then the cooling strategy can be exited to continue cooling the vehicle for the remaining shorter mileage, which is beneficial to improving the cooling control effect.

[0095] It is understandable that the final speed of the water pump must not be lower than the minimum flow requirement of the cooling system; the final calculated speed of the fan must not be lower than 0%, and the final calculated minimum opening of the air intake grille is 0°.

[0096] The cooling control method for a vehicle system provided in an embodiment of the present application can utilize the vehicle's navigation system to identify certain low-load and stable driving conditions. Within a specified road section / operating condition, the water pump speed, fan speed, and intake grille opening are reduced, thereby reducing cooling energy consumption while ensuring that the power and transmission system components do not overheat. This solution uses the current actual vehicle speed as a reference to optimize the cooling system control strategy for energy reduction. As the vehicle speed decreases, road noise also decreases. Customers are increasingly sensitive to the vibration and noise of components such as fans and compressors in the engine compartment. Although this solution primarily aims to reduce cooling system energy consumption, the noise generated by the cooling system will also be reduced, thereby improving the user's driving experience.

[0097] It should be noted that all parameters and variables involved in this solution can be calibrated and adjusted based on actual vehicle requirements, including but not limited to vehicle speed, distance, temperature, rotational speed, angle, time, percentage, and other parameters. The correction formulas for the water pump, fan, and intake grille can be adjusted to other nonlinear formulas based on actual vehicle requirements.

[0098] It should be noted that the method of the embodiment of the present application can be performed by a single device, such as a computer or server. The method of this embodiment can also be applied in a distributed scenario and completed by multiple devices working together. In such a distributed scenario, one of the multiple devices may only perform one or more steps of the method of the embodiment of the present application, and the multiple devices will interact with each other to complete the method.

[0099] It should be noted that the above description is limited to some embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims may be performed in an order different from that described in the above embodiments and still achieve the desired results. Furthermore, the processes depicted in the accompanying drawings do not necessarily require the specific order or sequential order shown to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0100] Based on the same inventive concept, corresponding to any of the above-mentioned embodiment methods, the present application also provides a cooling control device for a vehicle system. As shown in Figure 2, the cooling control device 200 for a vehicle system includes: a determination module 210, configured to: determine the target control parameters based on speed information; a control module 220, configured to: perform cooling control on the vehicle based on the target control parameters.

[0101] In some embodiments, the speed information includes the current actual speed of the vehicle, and the determination module 210 is configured to: determine a first control parameter according to the current actual speed of the vehicle; and determine the first control parameter as a target control parameter.

[0102] In some embodiments, the speed information includes the vehicle's current actual speed and the maximum speed allowed by the vehicle's current road section. The determination module 210 includes a first determination unit, which is configured to determine a first control parameter based on the vehicle's current actual speed; a second determination unit, which is configured to determine a second control parameter based on the vehicle's current maximum speed allowed by the vehicle's current road section; and a third determination unit, which is configured to determine a target control parameter based on the first control parameter and the second control parameter.

[0103] In some embodiments, the third determining unit is configured to determine the control parameter corresponding to the greater cooling capacity between the first control parameter and the second control parameter as the target control parameter.

[0104] In some embodiments, the determination module 210 includes a fourth determination unit, which is configured to determine whether the current driving information of the vehicle is preset information; a fifth determination unit, which is configured to determine the candidate control parameters that match the preset information based on the speed information if the current driving information of the vehicle is preset information; and a sixth determination unit, which is configured to determine the target control parameters based on the candidate control parameters.

[0105] In some embodiments, the speed information includes the vehicle's current actual speed, and the fifth determination unit includes a first determination subunit, configured to determine a first control parameter based on the vehicle's current actual speed; and a second determination subunit, configured to determine a candidate control parameter based on the first control parameter and a preset control parameter that matches the preset information.

[0106] In some embodiments, the second determining subunit is configured to determine the first control parameter and a control parameter corresponding to a greater cooling capacity among the preset control parameters as candidate control parameters.

[0107] In some embodiments, the speed information includes the vehicle's current actual speed and the maximum speed allowed by the vehicle's current road section. The fifth determination unit includes a third determination subunit, which is configured to: determine a first control parameter based on the vehicle's current actual speed; determine a second control parameter based on the vehicle's current road section. The fourth determination subunit is configured to: determine a candidate control parameter based on the first control parameter and the second control parameter, or determine the candidate control parameter based on the first control parameter, the second control parameter, and a preset control parameter that matches the preset information.

[0108] In some embodiments, the fourth determination subunit is configured to: determine the control parameter corresponding to the greater cooling capacity among the first control parameter and the second control parameter as the candidate control parameter; or determine the control parameter corresponding to the greater cooling capacity among the first control parameter, the second control parameter and the preset control parameter as the candidate control parameter.

[0109] In some embodiments, when there are multiple preset information, the sixth determination unit is configured to: determine the candidate control parameter that matches any one of the multiple preset information as the target control parameter; or determine the candidate control parameter corresponding to the smaller cooling capacity among the candidate control parameters that match the multiple preset information as the target control parameter.

[0110] In some embodiments, the preset information includes one or more of the following:

[0111] The vehicle is on a road with a speed limit;

[0112] The vehicle is on a rural road;

[0113] The vehicle is on a road section where the distance to a preset waypoint or a preset destination is less than a distance threshold;

[0114] The vehicle is on a congested road section or on an adjacent road section whose distance to the congested road section is less than the distance threshold;

[0115] The vehicle is inside the tunnel;

[0116] The vehicle is on a downhill slope;

[0117] The vehicle is on a downhill road and the road slope is greater than the slope threshold;

[0118] The vehicle is in a parked state;

[0119] The current weather is rainy, foggy, or snowy;

[0120] The actual vehicle speed is less than the speed threshold.

[0121] In some embodiments, the target control parameters include parameters of functional components for cooling the vehicle.

[0122] In some embodiments, the target control parameters include one or more of water pump speed, fan speed and intake grille opening; the determination module 210 includes a seventh determination unit, configured to: obtain the vehicle's current water pump speed, fan speed and / or intake grille opening, and determine the correction parameter corresponding to the speed information based on the correspondence between the speed information and the correction parameter; the correction unit is configured to: correct the vehicle's current water pump speed, fan speed and / or intake grille opening according to the correction parameter to obtain a corrected water pump speed, fan speed and / or intake grille opening; an eighth determination unit is used to use the corrected water pump speed, fan speed and / or intake grille opening as the target control parameter.

[0123] In some embodiments, the speed information includes the actual speed of the vehicle, and the seventh determination unit is configured to: obtain the current actual speed of the vehicle; determine whether the actual speed is within a preset speed range; if so, obtain the current water pump speed, fan speed and / or air intake grille opening of the vehicle, and determine the correction parameters corresponding to the actual speed based on the correspondence between the speed information and the correction parameters.

[0124] In some embodiments, the seventh determining unit is configured to obtain the current water pump speed, fan speed and / or intake grille opening of the vehicle according to the current motor inlet water temperature.

[0125] In some embodiments, the correction unit is configured to correct the vehicle's current water pump speed, fan speed, and / or intake grille opening based on the following formula:

[0126] R pump '=R pump ×A1-B1;

[0127] R fan '=R fan ×A2-B2;

[0128] D ags '=D ags ×A3-C1;

[0129] Among them, A1, A2, A3, B1, B2 and C1 are correction parameters; R pump Indicates the vehicle's current water pump speed, R fan Indicates the current fan speed of the vehicle, D ags Indicates the vehicle's current air intake grille opening, R pump ' represents the corrected pump speed, R fan ' represents the corrected fan and water pump speed, D ags' represents the corrected intake grille opening. For ease of description, the above device is described separately by function in various modules. Of course, when implementing this application, the functions of each module can be implemented in the same or multiple software and / or hardware.

[0130] The device of the above embodiment is used to implement the cooling control method of the corresponding vehicle system in any of the above embodiments, and has the beneficial effects of the corresponding method embodiment, which will not be repeated here.

[0131] Based on the same inventive concept, corresponding to any of the above-mentioned embodiments and methods, the present application also provides a vehicle, which includes a cooling control device for a vehicle system.

[0132] Based on the same inventive concept, corresponding to any of the above-mentioned embodiments and methods, the present application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and runnable on the processor. When the processor executes the program, the cooling control method of the vehicle system of any of the above embodiments is implemented.

[0133] FIG3 shows a more specific schematic diagram of the hardware structure of an electronic device provided in this embodiment. The device may include: a processor 1010, a memory 1020, an input / output interface 1030, a communication interface 1040, and a bus 1050. The processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040 are communicatively connected to each other within the device via the bus 1050.

[0134] The processor 1010 can be implemented using a general-purpose CPU (Central Processing Unit), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this specification.

[0135] The memory 1020 can be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory), static storage devices, dynamic storage devices, etc. The memory 1020 can store an operating system and other application programs. When the technical solutions provided in the embodiments of this specification are implemented through software or firmware, the relevant program code is stored in the memory 1020 and is called and executed by the processor 1010.

[0136] The input / output interface 1030 is used to connect input / output modules to implement information input and output. The input / output modules can be configured as components within the device (not shown in the figure) or can be externally connected to the device to provide corresponding functions. Input devices may include a keyboard, mouse, touch screen, microphone, various sensors, etc., and output devices may include a display, speaker, vibrator, indicator light, etc.

[0137] The communication interface 1040 is used to connect to a communication module (not shown) to enable communication between the device and other devices. The communication module can communicate via a wired method (such as USB, network cable, etc.) or a wireless method (such as mobile network, WiFi, Bluetooth, etc.).

[0138] The bus 1050 comprises a pathway for transmitting information between the various components of the device (eg, the processor 1010 , the memory 1020 , the input / output interface 1030 , and the communication interface 1040 ).

[0139] It should be noted that although the above device only shows the processor 1010, the memory 1020, the input / output interface 1030, the communication interface 1040, and the bus 1050, in a specific implementation, the device may also include other components necessary for normal operation. In addition, it will be understood by those skilled in the art that the above device may only include the components necessary to implement the embodiments of this specification, and does not necessarily include all the components shown in the figure.

[0140] The electronic device of the above embodiment is used to implement the cooling control method of the corresponding vehicle system in any of the above embodiments, and has the beneficial effects of the corresponding method embodiment, which will not be repeated here.

[0141] Based on the same inventive concept, corresponding to any of the above-mentioned embodiment methods, the present application also provides a computer-readable storage medium, which stores computer instructions, and the computer instructions are used to enable a computer to execute the cooling control method of the vehicle system as any of the above embodiments.

[0142] The computer-readable media of this embodiment include permanent and non-permanent, removable and non-removable media that can be used to store information by any method or technology. The information can be computer-readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, read-only compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device.

[0143] The computer instructions stored in the storage medium of the above embodiment are used to enable a computer to execute the cooling control method of a vehicle system of any of the above embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be described in detail here. A person skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this application (including the claims) is limited to these examples; under the concept of this application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the above embodiments of this application, which are not provided in detail for the sake of simplicity.

[0144] In addition, for simplicity of description and discussion, and in order not to make the embodiment of the application difficult to understand, the known power supply / ground connection with integrated circuit (IC) chip and other components may or may not be shown in the accompanying drawings provided. In addition, the device can be shown in the form of a block diagram to avoid making the embodiment of the application difficult to understand, and this also takes into account the following fact, that is, the details of the embodiment of these block diagram devices are highly dependent on the platform to be implemented in the embodiment of the application (that is, these details should be fully within the scope of understanding of those skilled in the art). When specific details (for example, circuit) are set forth to describe exemplary embodiments of the application, it will be apparent to those skilled in the art that the embodiment of the application can be implemented without these specific details or when these specific details are changed. Therefore, these descriptions should be considered to be illustrative rather than restrictive.

[0145] Although the present invention has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those skilled in the art based on the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may utilize the embodiments discussed.

[0146] The embodiments of the present application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of this application.

Claims

1. A cooling control method for a vehicle system, characterized in that: include: Determine target control parameters according to speed information; The vehicle is cooled and controlled according to the target control parameter.

2. The method according to claim 1, characterized in that The speed information includes the current actual speed of the vehicle, and determining the target control parameter according to the speed information includes: Determining a first control parameter according to the current actual speed of the vehicle; The first control parameter is determined as the target control parameter.

3. The method according to claim 1, characterized in that The speed information includes the current actual speed of the vehicle and the maximum speed allowed by the road section where the vehicle is currently located. The determining of the target control parameter according to the speed information includes: Determining a first control parameter according to the current actual speed of the vehicle; Determining a second control parameter according to the maximum speed allowed by the road section where the vehicle is currently located; The target control parameter is determined according to the first control parameter and the second control parameter.

4. The method according to claim 3, characterized in that The determining the target control parameter according to the first control parameter and the second control parameter comprises: The control parameter corresponding to the greater cooling capacity between the first control parameter and the second control parameter is determined as the target control parameter.

5. The method according to claim 1, characterized in that Determining the target control parameter according to the speed information includes: Determine whether the current driving information of the vehicle is preset information; If the current driving information of the vehicle is preset information, determining a candidate control parameter matching the preset information according to the speed information; A target control parameter is determined based on the candidate control parameters.

6. The method according to claim 5, characterized in that The speed information includes the current actual speed of the vehicle, and the determining of the candidate control parameters matching the preset information according to the speed information includes: Determining a first control parameter according to the current actual speed of the vehicle; The candidate control parameter is determined according to the first control parameter and a preset control parameter matching the preset information.

7. The method according to claim 6, characterized in that The determining the candidate control parameter according to the first control parameter and a preset control parameter matching the preset information includes: The first control parameter and the control parameter corresponding to a larger cooling capacity among the preset control parameters are determined as the candidate control parameter.

8. The method according to claim 5, characterized in that The speed information includes the current actual speed of the vehicle and the maximum speed allowed by the road section where the vehicle is currently located. The determining of the candidate control parameters matching the preset information according to the speed information includes: Determine the first control parameter according to the actual current speed of the vehicle; determine the second control parameter according to the maximum speed allowed by the current road section where the vehicle is located; The candidate control parameter is determined according to the first control parameter and the second control parameter, or the candidate control parameter is determined according to the first control parameter, the second control parameter and a preset control parameter matching the preset information.

9. The method according to claim 8, characterized in that The determining the candidate control parameter according to the first control parameter and the second control parameter includes: Determine the control parameter corresponding to the greater cooling capacity between the first control parameter and the second control parameter as the candidate control parameter; The determining the candidate control parameter according to the first control parameter, the second control parameter, and a preset control parameter matching the preset information includes: The control parameter corresponding to a larger cooling capacity among the first control parameter, the second control parameter and the preset control parameter is determined as the candidate control parameter.

10. The method according to claim 5, characterized in that When there are multiple types of preset information, determining the target control parameter based on the candidate control parameters includes: Determining a candidate control parameter that matches any one of the plurality of preset information as the target control parameter; Alternatively, a candidate control parameter corresponding to a smaller cooling capacity among the candidate control parameters respectively matching a plurality of preset information is determined as the target control parameter.

11. The method according to claim 5, characterized in that The preset information includes one or more of the following: The vehicle is on a road with a speed limit; The vehicle is on a rural road; The vehicle is on a road section where the distance to a preset waypoint or a preset destination is less than a distance threshold; The vehicle is on a congested road section or on an adjacent road section whose distance to the congested road section is less than a distance threshold; The vehicle is inside the tunnel; The vehicle is on a downhill section; The vehicle is on a downhill section and the road slope is greater than the slope threshold; The vehicle is in a parking condition; The current weather is rainy, foggy or snowy; The actual vehicle speed is less than the speed threshold.

12. The method according to claim 1, characterized in that The target control parameters include parameters of functional components for cooling the vehicle.

13. The method according to claim 1, characterized in that The target control parameter includes one or more of a water pump speed, a fan speed, and an air intake grille opening; Determining the target control parameter according to the speed information includes: Acquiring the current water pump speed, fan speed and / or intake grille opening of the vehicle, and determining the correction parameter corresponding to the speed information according to the corresponding relationship between the speed information and the correction parameter; According to the correction parameters, the current water pump speed, fan speed and / or air intake grille opening of the vehicle are corrected to obtain a corrected water pump speed, fan speed and / or air intake grille opening; The corrected water pump speed, fan speed and / or intake grille opening are used as target control parameters.

14. The method according to claim 13, characterized in that The speed information includes the actual speed of the vehicle, and the obtaining of the current water pump speed, fan speed and / or intake grille opening of the vehicle, and determining the correction parameter corresponding to the speed information according to the corresponding relationship between the speed information and the correction parameter, include: Get the current actual speed of the vehicle; Determine whether the actual vehicle speed is within a preset vehicle speed range; if so, obtain the vehicle's current water pump speed, fan speed and / or air intake grille opening, and determine the correction parameters corresponding to the actual vehicle speed based on the correspondence between the speed information and the correction parameters.

15. The method according to claim 13, characterized in that The obtaining of the current water pump speed, fan speed and / or intake grille opening of the vehicle includes: The vehicle's current water pump speed, fan speed and / or intake grille opening are obtained based on the current motor inlet water temperature.

16. The method according to claim 13, characterized in that The method of correcting the current water pump speed, fan speed and / or air intake grille opening of the vehicle according to the correction parameter to obtain the corrected water pump speed, fan speed and / or air intake grille opening includes: The vehicle's current water pump speed, fan speed and / or intake grille opening are corrected based on the following formula: R pump '=R pump ×A1-B1; R fan ’=R fan ×A2-B2; D ags ’=D ags ×A3-C1; Wherein, A1, A2, A3, B1, B2 and C1 are the correction parameters; R pump Indicates the vehicle's current water pump speed, R fan Indicates the current fan speed of the vehicle, D ags Indicates the current opening of the vehicle's air intake grille, R pump ' represents the corrected pump speed, R fan ' represents the corrected fan pump speed, D ags ' represents the corrected intake grille opening.

17. A cooling control device for a vehicle system, characterized in that: include: A processor, wherein the processor is configured to execute the following program modules stored in the memory: A determination module is configured to: determine a target control parameter according to the speed information; The control module is configured to: perform cooling control on the vehicle according to the target control parameter.

18. An electronic device, characterized in that: The method comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the method according to any one of claims 1 to 16 when executing the program.

19. A vehicle, characterized in that: The vehicle includes the electronic device as claimed in claim 18.

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