PTC gear control method and device of vehicle, vehicle and storage medium

Abstract

The invention relates to the technical field of vehicles, in particular to a PTC gear control method and device of a vehicle, the vehicle and a storage medium, and the method comprises the steps that the current heating mode, the current vehicle speed and the current air conditioner air volume of the vehicle and the current environment temperature of the position where the vehicle is located are obtained; based on the current heating mode, the current vehicle speed, the current air conditioner air volume and the current environment temperature, the starting gear of a first PTC and the running time of the first PTC are determined from a preset PTC control strategy; and controlling the PTC according to the starting gear of the first PTC and the running time of the first PTC. Therefore, the problems that a control method in the related technology is not intelligent enough and energy is not saved are solved, the PTC gear is calculated through thermal management simulation, the PTC gear is automatically adjusted, and the comprehensive requirements of a user for thermal comfort and energy consumption are met.

Description

Technical Field

[0001] This application relates to the technical field of vehicles, and particularly to a PTC (Positive Temperature Coefficient) gear control method, device, vehicle, and storage medium for a vehicle. Background Art

[0002] In the air conditioning system of electric vehicles, PTC heating technology is commonly used to achieve the functions of warm air supply and defrosting of window glass. Its heat source is the PTC thermistor. The main working principle is that the PTC thermistor generates heat after being powered on, and the blower in the vehicle circulates air and heats it through the PTC thermistor, so that the air conditioner blows out hot air. However, the PTC heating technology has the disadvantage of high energy consumption.

[0003] In related technologies, the PTC control method is divided into two types: manual control and automatic control. For manual control, there are buttons on the air conditioning panel, such as low gear, medium gear, and high gear. Users can select the corresponding gear according to actual needs to adjust the power output of the PTC. The automatic control method is to automatically adjust the PTC power through the air conditioning system based on the temperature requirement set by the user to meet the user's set requirement.

[0004] However, the PTC manual control method in related technologies requires users to actively select gears. If the low gear is selected, it takes a long time for the air conditioner to reach a comfortable temperature; if the high gear is selected, although the temperature inside the vehicle can be quickly increased, if the gear is not switched in time, the temperature inside the vehicle will continue to rise until the user feels overheated and uncomfortable, and then switch to the low gear. It can be seen that this control method is not intelligent and not energy-saving, and urgently needs to be solved. Summary of the Invention

[0005] This application provides a PTC gear control method, device, vehicle, and storage medium for a vehicle to solve problems such as the control method in related technologies being not intelligent and not energy-saving. By performing thermal management simulation calculations on the PTC gear and automatically adjusting the PTC gear, the comprehensive requirements of users for thermal comfort and energy consumption are met.

[0006] The first aspect of the embodiments of this application provides a PTC gear control method for a vehicle, including the following steps:

[0007] Obtain the current heating mode, current vehicle speed, current air volume of the air conditioner, and the current ambient temperature at the location where the vehicle is located;

[0008] Based on the current heating mode, the current vehicle speed, the current air volume of the air conditioner, and the current ambient temperature, determine the starting gear of the first PTC and the running time of the first PTC from a preset PTC control strategy;

[0009] Control the PTC according to the on - gear of the first PTC and the running time of the first PTC.

[0010] According to an embodiment of the present application, before determining the on - gear of the PTC and the running time of the PTC from a preset PTC control strategy, it further includes:

[0011] Build a vehicle heating simulation model;

[0012] Determine multiple heating modes, and respectively collect at least one air volume of the air conditioner, heating mode, at least one PTC power, vehicle body parameters, and ambient parameters of at least one target vehicle under each heating mode;

[0013] Based on each heating mode, input the vehicle body parameters of the at least one vehicle, the ambient parameters of the at least one vehicle, at least one air volume of the air conditioner of each target vehicle, and at least one PTC power of each target vehicle into the vehicle heating simulation model, and obtain the on - gear of the PTC and the running time of the PTC under each heating mode.

[0014] According to an embodiment of the present application, after controlling the PTC according to the on - gear of the PTC and the running time of the PTC, it further includes:

[0015] Judge whether the current heating mode is consistent with the target heating mode;

[0016] If the current heating mode is not consistent with the target heating mode, re - obtain the new current vehicle speed, new current air volume of the air conditioner, and new current ambient temperature, and based on the target heating mode, the new current vehicle speed, the new current air volume of the air conditioner, and the new current ambient temperature, re - determine the on - gear of the second PTC and the running time of the second PTC from the preset PTC control strategy;

[0017] Control the PTC according to the on - gear of the second PTC and the running time of the second PTC.

[0018] According to an embodiment of the present application, after controlling the PTC according to the on - gear of the PTC and the running time of the PTC, it further includes:

[0019] Judge whether any change amount among the current vehicle speed, the current air volume of the air conditioner, and the current ambient temperature meets the preset PTC operation strategy switching condition;

[0020] If any change amount among the current vehicle speed, the current air volume of the air conditioner, and the current ambient temperature satisfies the preset PTC operation strategy switching condition, the opening gear and the operation time of the third PTC are determined again from the preset PTC control strategy, and the PTC is controlled according to the opening gear and the operation time of the third PTC.

[0021] According to an embodiment of the present application, the heating mode includes an energy-saving mode, an economic mode, and a comfort mode.

[0022] According to the PTC gear control method for a vehicle provided by an embodiment of the present application, based on the current heating mode, the current vehicle speed, the current air volume of the air conditioner, and the current ambient temperature at the location where the vehicle is located, the opening gear and the operation time of the first PTC are determined from the preset PTC control strategy, and the PTC is controlled according to the opening gear and the operation time of the first PTC. Thereby, problems such as the control method in the related art being insufficiently intelligent and not energy-saving are solved. By simulating and calculating the PTC gear and automatically adjusting the PTC gear, the comprehensive requirements of users for thermal comfort and energy consumption are met.

[0023] An embodiment of the second aspect of the present application provides a PTC gear control device for a vehicle, including:

[0024] An acquisition module, configured to acquire the current heating mode, the current vehicle speed, the current air volume of the air conditioner, and the current ambient temperature at the location where the vehicle is located;

[0025] A determination module, configured to determine the opening gear and the operation time of the first PTC from the preset PTC control strategy based on the current heating mode, the current vehicle speed, the current air volume of the air conditioner, and the current ambient temperature;

[0026] A control module, configured to control the PTC according to the opening gear and the operation time of the first PTC.

[0027] According to an embodiment of the present application, before determining the opening gear and the operation time of the PTC from the preset PTC control strategy, the determination module is further configured to:

[0028] Construct a vehicle heating simulation model;

[0029] Determine multiple heating modes, and respectively collect at least one air volume of the air conditioner, heating mode, at least one PTC power, vehicle body parameters, and ambient parameters of at least one target vehicle under each heating mode;

[0030] Based on each heating mode, input the body parameters of the at least one vehicle, the environmental parameters of the at least one vehicle, at least one air volume of the air conditioner of each target vehicle, and at least one PTC power of each target vehicle into the vehicle heating simulation model to obtain the starting gear of the PTC and the operating time of the PTC under each heating mode.

[0031] According to an embodiment of the present application, after controlling the PTC according to the starting gear of the PTC and the operating time of the PTC, the control module is further configured to:

[0032] Determine whether the current heating mode is consistent with the target heating mode;

[0033] If the current heating mode is not consistent with the target heating mode, re-obtain the new current vehicle speed, the new current air volume of the air conditioner, and the new current ambient temperature, and based on the target heating mode, the new current vehicle speed, the new current air volume of the air conditioner, and the new current ambient temperature, re-determine the starting gear of the second PTC and the operating time of the second PTC from the preset PTC control strategy;

[0034] Control the PTC according to the starting gear of the second PTC and the operating time of the second PTC.

[0035] According to an embodiment of the present application, after controlling the PTC according to the starting gear of the PTC and the operating time of the PTC, the control module is further configured to:

[0036] Determine whether any change amount among the current vehicle speed, the current air volume of the air conditioner, and the current ambient temperature meets the preset PTC operation strategy switching condition;

[0037] If any change amount among the current vehicle speed, the current air volume of the air conditioner, and the current ambient temperature meets the preset PTC operation strategy switching condition, re-determine the starting gear of the third PTC and the operating time of the third PTC from the preset PTC control strategy, and control the PTC according to the starting gear of the third PTC and the operating time of the third PTC.

[0038] According to an embodiment of the present application, the heating mode includes an energy-saving mode, an economic mode, and a comfort mode.

[0039] According to the PTC gear control device of a vehicle provided by an embodiment of the present application, based on the current heating mode, the current vehicle speed, the current air volume of the air conditioner, and the current ambient temperature at the location of the vehicle, the opening gear of the first PTC and the operating time of the first PTC are determined from a preset PTC control strategy, and the PTC is controlled according to the opening gear of the first PTC and the operating time of the first PTC. Thus, problems such as the control method in the related art being not intelligent enough and not energy-saving are solved. By simulating and calculating the PTC gear and automatically adjusting the PTC gear, the comprehensive requirements of users for thermal comfort and energy consumption are met.

[0040] The third aspect of the present application provides a vehicle, including: a memory, a processor, and a computer program stored on the memory and executable on the processor, and the processor executes the program to implement the PTC gear control method of the vehicle as described in the above embodiment.

[0041] The fourth aspect of the present application provides a computer-readable storage medium, and the computer-readable storage medium stores computer instructions for causing the computer to execute the PTC gear control method of the vehicle as described in the above embodiment.

[0042] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. Description of the Drawings

[0043] The above and / or additional aspects and advantages of the present application will become apparent and easy to understand from the following description of the embodiments in conjunction with the drawings, where:

[0044] Figure 1 is a flowchart of a PTC gear control method for a vehicle provided by an embodiment of the present application;

[0045] Figure 2 is a schematic diagram of an air conditioner panel button according to an embodiment of the present application;

[0046] Figure 3 is a schematic diagram of the body structure parameters of a vehicle according to an embodiment of the present application;

[0047] Figure 4 is a schematic diagram of a vehicle heating simulation model according to an embodiment of the present application;

[0048] Figure 5 is a schematic diagram of inputting body structure parameters into the simulation model according to an embodiment of the present application;

[0049] Figure 6 is a schematic diagram of inputting environmental parameters and vehicle speed into the simulation model according to an embodiment of the present application;

[0050] Figure 7 A flowchart developed according to a preset PTC control strategy of an embodiment of the present application;

[0051] Figure 8 A schematic diagram of PTC control according to an embodiment of the present application;

[0052] Figure 9 A PTC execution flowchart according to an embodiment of the present application;

[0053] Figure 10 A block diagram of a PTC gear control device for a vehicle according to an embodiment of the present application;

[0054] Figure 11 A schematic diagram of the structure of a vehicle provided by an embodiment of the present application. Detailed implementation manners

[0055] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present application, and should not be construed as a limitation to the present application.

[0056] The PTC gear control method, device, vehicle and storage medium of the vehicle according to the embodiments of the present application will be described below with reference to the accompanying drawings. In view of the problems such as the control method in the above-mentioned background technology being not intelligent enough and not energy-saving, the present application provides a PTC gear control method for a vehicle, which determines the opening gear and operating time of the first PTC from a preset PTC control strategy based on the current heating mode, current vehicle speed, current air volume of the air conditioner and the current ambient temperature at the location of the vehicle, and controls the PTC according to the opening gear and operating time of the first PTC. Thereby, the problems such as the control method in the related technology being not intelligent enough and not energy-saving are solved, and the PTC gear is calculated by simulation and automatically adjusted to meet the comprehensive requirements of users for thermal comfort and energy consumption.

[0057] Specifically, Figure 1 A flowchart of a PTC gear control method for a vehicle provided by an embodiment of the present application.

[0058] As Figure 1 shown, the PTC gear control method for the vehicle includes the following steps:

[0059] In step S101, obtain the current heating mode, current vehicle speed, current air volume of the air conditioner and the current ambient temperature at the location of the vehicle.

[0060] Among them, asFigure 2 As shown in the figure, when designing the air conditioner control panel in the embodiments of the present application, the mode button is used for display, and three different selection buttons for energy saving, economy, and comfort are added, corresponding to three heating modes of energy-saving mode, economy mode, and comfort mode in sequence, for users to select the heating mode.

[0061] Optionally, in the embodiments of the present application, the current heating mode of the vehicle can be obtained through the air conditioner control panel of the vehicle, the current vehicle speed can be obtained through the vehicle speed sensor, the current air volume of the air conditioner can be obtained through the air conditioner control panel of the vehicle, and the current ambient temperature at the location where the vehicle is located can also be obtained through the outdoor temperature sensor.

[0062] In addition, there are many other ways to obtain the current heating mode of the vehicle, the current vehicle speed, the current air volume of the air conditioner, and the current ambient temperature at the location where the vehicle is located. Those skilled in the art can adopt other methods in the prior art to obtain the current heating mode of the vehicle, the current vehicle speed, the current air volume of the air conditioner, and the current ambient temperature at the location where the vehicle is located according to the actual situation, and no specific limitation is made here.

[0063] In step S102, based on the current heating mode, the current vehicle speed, the current air volume of the air conditioner, and the current ambient temperature, determine the opening gear of the first PTC and the operating time of the first PTC from the preset PTC control strategy.

[0064] Further, in some embodiments, before determining the opening gear of the PTC and the operating time of the PTC from the preset PTC control strategy, it further includes: constructing a vehicle heating simulation model; determining multiple heating modes, and respectively collecting at least one air volume of the air conditioner, heating mode, at least one PTC power, body parameters, and ambient parameters of at least one target vehicle in each heating mode; based on each heating mode, inputting the body parameters of at least one vehicle, the ambient parameters of at least one vehicle, at least one air volume of the air conditioner of each target vehicle, and at least one PTC power of each target vehicle into the vehicle heating simulation model to obtain the opening gear of the PTC and the operating time of the PTC in each heating mode.

[0065] Specifically, first, collect the body structure parameters and body material parameters, and the parameter content is as Figure 3 shown, and then create Table 1 and Table 2 according to the body structure parameters and body material parameters. Among them, Table 1 is the body structure parameter table, and Table 2 is the body material parameter table.

[0066] Table 1

[0067]

[0068] Table 2

[0069]

[0070]

[0071] Further, as Figure 4 shown, in the embodiments of the present application, by establishing the connection relationships among the vehicle body parameter module, the environmental parameter module, the vehicle speed module, the air volume module of the air conditioner, and the PTC power module in the KULI software, a vehicle heating simulation analysis model is constructed.

[0072] Further, multiple heating modes are determined. In each heating mode, at least one air volume of the air conditioner and the heating mode of the target vehicle are collected through the air conditioner control panel of the vehicle, and the PTC power, vehicle body parameters, and environmental parameters where the target vehicle is located are obtained through in-vehicle sensors. The vehicle body parameters of the vehicle (as Figure 5 shown) are input into the vehicle heating simulation model, the environmental parameters and vehicle speed (as Figure 6 shown) are input into the vehicle heating simulation model, and the air volume of the air conditioner and the PTC power of the target vehicle are input into the vehicle heating simulation model. Through simulation calculations, the PTC activation gear positions and operating times corresponding to different heating modes at different environmental temperatures can be obtained, thereby forming a preset PTC control strategy, as shown in Table 3. Among them, the PTC operation strategy in Table 3 is only exemplary, and those skilled in the art can obtain the PTC operation strategy through actual simulation calculations.

[0073] Table 3

[0074]

[0075]

[0076] As shown in Table 3, the table shows the PTC control strategy when the environmental temperature is between -40°C and -35°C. In actual simulation, simulation calculations can be performed every 5°C to obtain the PTC operating time and formulate different PTC control strategies. In addition, the range of the environmental temperature needs to cover the temperature range of the whole vehicle's operating conditions.

[0077] It should be noted that the embodiments of the present application can formulate the PTC control strategy according to the vehicle type's thermal comfort and power economy requirements, that is, set the temperature range for PTC gear shifting in different modes. For example, when the temperature is between -30°C and -20°C, in the energy-saving mode, the PTC low gear is first turned on. When the cockpit temperature reaches 10°C, the PTC is cut off for 10 minutes, and then the PTC low gear is turned on again; in the economic mode, the PTC medium gear is first turned on. When the cockpit temperature reaches 10°C, it is switched to the low gear. When the cockpit temperature reaches 15°C, the PTC is cut off for 10 minutes, and then the medium gear is turned on again; in the comfort mode, the high gear is first turned on. When the cockpit temperature reaches 15°C, the PTC medium gear is first turned on. When the cockpit temperature reaches 17°C, the low gear is turned on.

[0078] In addition, the principle of formulating the preset PTC control strategy in this application is to determine the heat that the PTC needs to generate when the current temperature of the current vehicle needs to be raised to the target temperature based on the heating mode selected by the user, the vehicle body parameters of the vehicle, the environmental parameters of the vehicle, the air volume of the air conditioner, and the PTC power. Furthermore, based on the heat that the PTC needs to generate, calculate the time required to raise the current temperature of the current vehicle to the target temperature, thereby obtaining the preset PTC control strategy.

[0079] Furthermore, input the preset PTC control strategy obtained through simulation into the vehicle air conditioner control strategy.

[0080] To facilitate those skilled in the art to more clearly and intuitively understand how the embodiments of this application formulate the preset PTC control strategy, the following will be combined with Figure 7 for detailed description.

[0081] As Figure 7 shown, the process of formulating the preset PTC control strategy includes the following steps:

[0082] S701, Start.

[0083] S702, Collect vehicle body structure parameters and material parameters.

[0084] S703, Establish a vehicle heating simulation analysis model.

[0085] S704, Set the temperature range for PTC gear shifting in different modes.

[0086] S705, Calculate the PTC activation gear and operation time in different modes.

[0087] S706, Input the PTC control strategy into the vehicle air conditioner control strategy.

[0088] S707, End.

[0089] Thus, by combining the user's usage environment and the user's comfort requirements, through thermal management simulation calculations, while meeting the user's heating needs, electrical energy is saved.

[0090] Furthermore, based on the current heating mode, the current vehicle speed, the current air volume of the air conditioner, and the current environmental temperature, determine the activation gear and operation time of the first PTC corresponding to the current heating mode, the current vehicle speed, the current air volume of the air conditioner, and the current environmental temperature from the preset PTC control strategy.

[0091] For example, taking Table 3 as an example, assume that the current heating mode is the energy-saving mode, the current environmental temperature is -37°C, the current vehicle speed is 20 kph, and the air volume of the air conditioner is 70 m 3If it is lower than 10℃, the starting gear of the first PTC is the low gear, and the running time of the first PTC is 10 minutes.

[0092] In step S103, the PTC is controlled according to the starting gear of the first PTC and the running time of the first PTC.

[0093] Among them, the overall vehicle heating control principle is designed as Figure 8 shown. The air conditioner controller is respectively connected to the heating mode button, PTC relay 1, PTC relay 2, air door motor, air conditioner blower, VCU (Vehicle Control Unit), and low-voltage power supply. PTC relay 1 and PTC relay 2 are also connected to the high-voltage power supply, low-voltage power supply, and PTC heater. According to different heating modes selected by the user when using the vehicle, the PTC is controlled according to the starting gear of the first PTC and the running time of the first PTC. The PTC is controlled by multiple relays to achieve the adjustment of the PTC power according to the user's needs.

[0094] Specifically, after the user selects a mode, the air conditioner control strategy will find the PTC gear calculated by simulation according to the ambient temperature, mode, etc., and adjust the PTC gear, for example, complete the switching of the PTC power through the PTC gear relay, so as to meet the user's requirements for thermal comfort and energy consumption.

[0095] Taking Table 3 as an example, assuming that the starting gear of the first PTC is the low gear and the running time of the first PTC is 10 minutes, then control the PTC to run at the low gear for 10 minutes, cut off for 10 minutes, and then run at the low gear for 10 minutes, and so on in a cycle.

[0096] Furthermore, in some embodiments, after controlling the PTC according to the starting gear of the PTC and the running time of the PTC, it further includes: determining whether the current heating mode is consistent with the target heating mode; if the current heating mode is not consistent with the target heating mode, then re-obtain the new current vehicle speed, new current air conditioner air volume, and new current ambient temperature, and based on the target heating mode, new current vehicle speed, new current air conditioner air volume, and new current ambient temperature, re-determine the starting gear of the second PTC and the running time of the second PTC from the preset PTC control strategy; control the PTC according to the starting gear of the second PTC and the running time of the second PTC.

[0097] Among them, the target heating mode is the heating mode after the user switches and selects the current mode.

[0098] It should be noted that during the process of using the vehicle, the user may, according to their own needs and feelings, switch the heating mode by controlling the air-conditioning panel buttons (such as switching from the energy-saving mode to the comfort mode). When the heating mode changes, the working state of the PTC should be adjusted to ensure the rapid and accurate adjustment of the vehicle interior temperature and meet the user's comfort requirements.

[0099] Specifically, it is determined whether the current heating mode is consistent with the target heating mode (i.e., the new heating mode selected by the user). If the current heating mode is inconsistent with the target heating mode, the new current vehicle speed, the new current air-conditioning air volume, and the new current ambient temperature are obtained again, and based on the new parameters and the target heating mode, the opening gear and the running time of the second PTC are determined again from the preset PTC control strategy, and the PTC is controlled according to the opening gear and the running time of the second PTC, so as to meet the user's requirements for thermal comfort and energy consumption.

[0100] In addition, if the current heating mode is consistent with the target heating mode, it means that the user has not performed a switching operation on the current heating mode, and there is no need to obtain the new current vehicle speed, the new current air-conditioning air volume, and the new current ambient temperature again. It is only necessary to maintain the PTC control strategy in the current heating mode, that is, to control the PTC according to the opening gear and the running time of the first PTC.

[0101] Furthermore, in some embodiments, after controlling the PTC according to the opening gear and the running time of the PTC, it further includes: determining whether any change amount among the current vehicle speed, the current air-conditioning air volume, and the current ambient temperature meets the preset PTC operation strategy switching condition; if any change amount among the current vehicle speed, the current air-conditioning air volume, and the current ambient temperature meets the preset PTC operation strategy switching condition, the opening gear and the running time of the third PTC are determined again from the preset PTC control strategy, and the PTC is controlled according to the opening gear and the running time of the third PTC.

[0102] It can be understood that during the driving process of the vehicle, parameters such as the vehicle speed, the air-conditioning air volume, and the ambient temperature may change, thus affecting the working efficiency of the PTC and the temperature adjustment effect inside the vehicle. By monitoring the changes in parameters such as the vehicle speed, the air-conditioning air volume, and the ambient temperature in real time and adjusting the opening gear and the running time of the PTC when necessary, the continuous stability of the vehicle interior temperature can be ensured and the user's comfort can be improved.

[0103] Specifically, it is determined whether any change amount among the current vehicle speed, the current air volume of the air conditioner, and the current ambient temperature satisfies a preset PTC operation strategy switching condition. If the change amount of any one of the current vehicle speed, the current air volume of the air conditioner, or the current ambient temperature satisfies the preset PTC operation strategy switching condition, the opening gear and the operation time of the third PTC are determined again from the preset PTC control strategies, and the PTC is controlled according to the opening gear and the operation time of the third PTC, so as to ensure that the operation of the PTC is always matched with the current vehicle operation conditions and environmental conditions, so as to achieve the best heating effect and energy efficiency.

[0104] In addition, if the change amount of any one of the current vehicle speed, the current air volume of the air conditioner, or the current ambient temperature does not satisfy the preset PTC operation strategy switching condition, the current PTC operation strategy is maintained, and the PTC is continued to be controlled according to the opening gear and the operation time of the first PTC.

[0105] To facilitate those skilled in the art to more clearly and intuitively understand the PTC execution process of the embodiments of the present application, the following is combined with Figure 9 for detailed description.

[0106] As Figure 9 shown, the PTC execution process includes the following steps:

[0107] S901, start.

[0108] S902, in the air conditioner panel design, add three selectable buttons of energy saving, economy, and comfort.

[0109] S903, perform control design according to the schematic diagram.

[0110] S904, identify the mode selected by the user.

[0111] S905, read the ambient temperature of the vehicle operation.

[0112] S906, read the driving speed of the vehicle.

[0113] S907, in the vehicle air conditioner control strategy table, find the specific strategy of the working condition and mode.

[0114] S908, switch the gear through the PTC relay.

[0115] S909, determine whether the user switches the mode selection. If so, execute S904, otherwise, execute S910.

[0116] S910, end.

[0117] Accordingly, in view of different usage environments and comfort requirements of users, the present invention changes the gear positions in the manual control of PTC into mode selections. Considering the power consumption of different PTCs comprehensively, three different modes are designed for users to choose. Through the intelligent control method of the present invention, the user only needs to select the required mode, and the air conditioning system automatically adjusts the gear positions of the PTC according to the preset control strategy, which not only avoids the problems of over-high temperature, discomfort and power waste in the vehicle caused by the user's failure to switch the gear positions in time, but also reduces the number of times the user manually switches the gear positions of the PTC, thus saving electric energy.

[0118] According to the PTC gear position control method for a vehicle proposed in an embodiment of the present application, based on the current heating mode, the current vehicle speed, the current air volume of the air conditioner, and the current ambient temperature at the position where the vehicle is located, the starting gear position of the first PTC and the running time of the first PTC are determined from a preset PTC control strategy, and the PTC is controlled according to the starting gear position of the first PTC and the running time of the first PTC. Accordingly, problems such as the control method in the related art being not intelligent enough and not energy-saving are solved, the PTC gear positions are calculated through simulation, and the PTC gear positions are automatically adjusted, meeting the comprehensive requirements of users for thermal comfort and energy consumption.

[0119] Next, a PTC gear position control device for a vehicle proposed in an embodiment of the present application will be described with reference to the accompanying drawings.

[0120] Figure 10 It is a block diagram of a PTC gear position control device for a vehicle according to an embodiment of the present application.

[0121] As Figure 10 shown, the PTC gear position control device 10 for the vehicle includes: an acquisition module 100, a determination module 200, and a control module 300.

[0122] Among them, the acquisition module 100 is used to acquire the current heating mode, the current vehicle speed, the current air volume of the air conditioner, and the current ambient temperature at the position where the vehicle is located; the determination module 200 is used to determine the starting gear position of the first PTC and the running time of the first PTC from a preset PTC control strategy based on the current heating mode, the current vehicle speed, the current air volume of the air conditioner, and the current ambient temperature; the control module 300 is used to control the PTC according to the starting gear position of the first PTC and the running time of the first PTC.

[0123] Further, in some embodiments, before determining the activation gear and the running time of the PTC from a preset PTC control strategy, the determining module 200 is further configured to: construct a vehicle heating simulation model; determine a plurality of heating modes, and respectively collect at least one air volume of the air conditioner, the heating mode, at least one PTC power, the vehicle body parameters, and the ambient parameters of at least one target vehicle under each heating mode; based on each heating mode, input the vehicle body parameters of at least one vehicle, the ambient parameters of at least one vehicle, the at least one air volume of the air conditioner of each target vehicle, and the at least one PTC power of each target vehicle into the vehicle heating simulation model to obtain the activation gear and the running time of the PTC under each heating mode.

[0124] Further, in some embodiments, after controlling the PTC according to the activation gear and the running time of the PTC, the control module 300 is further configured to: determine whether the current heating mode is consistent with the target heating mode; if the current heating mode is not consistent with the target heating mode, re-obtain the new current vehicle speed, the new current air volume of the air conditioner, and the new current ambient temperature, and based on the target heating mode, the new current vehicle speed, the new current air volume of the air conditioner, and the new current ambient temperature, re-determine the activation gear and the running time of the second PTC from the preset PTC control strategy; control the PTC according to the activation gear and the running time of the second PTC.

[0125] Further, in some embodiments, after controlling the PTC according to the activation gear and the running time of the PTC, the control module 300 is further configured to: determine whether any change amount among the current vehicle speed, the current air volume of the air conditioner, and the current ambient temperature meets a preset PTC operation strategy switching condition; if any change amount among the current vehicle speed, the current air volume of the air conditioner, and the current ambient temperature meets the preset PTC operation strategy switching condition, re-determine the activation gear and the running time of the third PTC from the preset PTC control strategy, and control the PTC according to the activation gear and the running time of the third PTC.

[0126] Further, in some embodiments, the heating modes include an energy-saving mode, an economic mode, and a comfort mode.

[0127] It should be noted that the foregoing explanation of the embodiments of the PTC gear control method for vehicles also applies to the PTC gear control device for vehicles in this embodiment, and will not be elaborated here.

[0128] The PTC gear control device for a vehicle proposed according to an embodiment of the present application determines the opening gear and the running time of the first PTC from a preset PTC control strategy based on the current heating mode, the current vehicle speed, the current air volume of the air conditioner, and the current ambient temperature at the location where the vehicle is located, and controls the PTC according to the opening gear and the running time of the first PTC. Thereby, problems such as the control method in the related art being not intelligent enough and not energy-saving are solved. By simulating and calculating the PTC gear and automatically adjusting the PTC gear, the comprehensive requirements of users for thermal comfort and energy consumption are met.

[0129] Figure 11 The structure diagram of the vehicle provided by the embodiment of the present application. The vehicle may include:

[0130] A memory 1101, a processor 1102, and a computer program stored on the memory 1101 and executable on the processor 1102.

[0131] When the processor 1102 executes the program, it implements the PTC gear control method for the vehicle provided in the above embodiment.

[0132] Further, the vehicle further includes:

[0133] A communication interface 1103 for communication between the memory 1101 and the processor 1102.

[0134] The memory 1101 is used to store a computer program executable on the processor 1102.

[0135] The memory 1101 may include a high-speed RAM memory, and may also include a non-volatile memory, such as at least one disk memory.

[0136] If the memory 1101, the processor 1102, and the communication interface 1103 are independently implemented, the communication interface 1103, the memory 1101, and the processor 1102 may be interconnected through a bus and communicate with each other. The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. For the sake of representation, Figure 11 only a thick line is shown in the figure, but it does not mean that there is only one bus or one type of bus.

[0137] Optionally, in a specific implementation, if the memory 1101, the processor 1102, and the communication interface 1103 are integrated on a single chip, the memory 1101, the processor 1102, and the communication interface 1103 can communicate with each other through an internal interface.

[0138] The processor 1102 may be a central processing unit (CPU for short), or an application specific integrated circuit (ASIC for short), or one or more integrated circuits configured to implement the embodiments of the present application.

[0139] The embodiments of the present application further provide a computer-readable storage medium, on which a computer program is stored. When the program is executed by a processor, the PTC gear control method for a vehicle as described above is implemented.

[0140] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or N embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0141] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "N" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0142] Any process or method description shown in a flowchart or described in other ways herein may be understood to represent a module, segment, or portion of code including one or more executable instructions for implementing a customized logic function or process. The scope of the preferred embodiments of the present application includes additional implementations, where the functions may be executed in a substantially simultaneous manner or in an order opposite to that shown or discussed, according to the functions involved, which should be understood by those skilled in the art to which the embodiments of the present application pertain.

[0143] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a definable sequence list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other systems that can fetch and execute instructions from the instruction execution system, apparatus, or device), or in conjunction with these instruction execution systems, apparatus, or devices. For the purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by or in conjunction with an instruction execution system, apparatus, or device. More specific examples (non-exhaustive list) of computer-readable media include the following: an electrical connection portion (electronic device) having one or N wirings, a portable computer disk cartridge (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium can even be paper or other suitable media on which the program can be printed, because the program can be obtained electronically, for example, by optically scanning the paper or other media, followed by editing, interpretation, or other suitable processing as necessary, and then storing it in a computer memory.

[0144] It should be understood that various parts of the present application can be implemented by hardware, software, firmware, or a combination thereof. In the above-described embodiments, the N steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or a combination of the following techniques well known in the art can be used: discrete logic circuits having logic gate circuits for implementing logical functions on data signals, application-specific integrated circuits having suitable combinational logic gate circuits, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

[0145] Those of ordinary skill in the art of this technology can understand that all or part of the steps carried by the methods of the above-described embodiments can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiments.

[0146] In addition, each functional unit in various embodiments of the present application may be integrated into one processing module, may exist separately as individual physical units, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. When the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0147] The above-mentioned storage medium may be a read-only memory, a magnetic disk, an optical disc, etc. Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A PTC gear position control method for a vehicle, characterized in that: The following steps are involved: Obtaining the current heating mode, current vehicle speed, current air conditioning air volume of the vehicle and the current ambient temperature of the vehicle; Based on the current heating mode, the current vehicle speed, the current air volume of the air conditioner and the current ambient temperature, determining the opening position of the first PTC and the operating time of the first PTC from a preset PTC control strategy; The PTC is controlled according to the opening gear position of the first PTC and the running time of the first PTC.

2. The method according to claim 1, characterized in that Before determining the PTC opening position and the PTC operation time from the preset PTC control strategy, it also includes: Build a vehicle heating simulation model; Determine a plurality of heating modes, and respectively in each heating mode, collect at least one air conditioning air volume, a heating mode, at least one PTC power, a vehicle body parameter, and an environmental parameter of at least one target vehicle; Based on each heating mode, the body parameters of the at least one vehicle, the environmental parameters of the at least one vehicle, at least one air-conditioning air volume of each target vehicle and at least one PTC power of each target vehicle are input into the vehicle heating simulation model to obtain the opening gear of the PTC and the operating time of the PTC in each heating mode.

3. The method according to claim 1, characterized in that After the PTC is controlled according to the opening gear of the PTC and the running time of the PTC, the method further includes: Determining whether the current heating mode is consistent with the target heating mode; If the current heating mode is inconsistent with the target heating mode, a new current vehicle speed, a new current air-conditioning air volume and a new current ambient temperature are re-acquired, and based on the target heating mode, the new current vehicle speed, the new current air-conditioning air volume and the new current ambient temperature, the opening gear of the second PTC and the operating time of the second PTC are re-determined from the preset PTC control strategy; The PTC is controlled according to the opening gear position of the second PTC and the running time of the second PTC.

4. The method according to claim 1, characterized in that After the PTC is controlled according to the opening gear of the PTC and the running time of the PTC, the method further includes: Determine whether any change in the current vehicle speed, the current air conditioning air volume, and the current ambient temperature satisfies a preset PTC operation strategy switching condition; If any change in the current vehicle speed, the current air-conditioning air volume and the current ambient temperature meets the preset PTC operation strategy switching condition, the opening gear of the third PTC and the operating time of the third PTC are re-determined from the preset PTC control strategy, and the PTC is controlled according to the opening gear of the third PTC and the operating time of the third PTC.

5. The method according to any one of claims 1 to 4, characterized in that The heating modes include energy-saving mode, economic mode and comfort mode.

6. A PTC gear position control device for a vehicle, characterized in that: include: An acquisition module is used to acquire the current heating mode, current vehicle speed, current air-conditioning air volume of the vehicle and the current ambient temperature of the location of the vehicle; A determination module, configured to determine the first PTC opening position and the first PTC operation time from a preset PTC control strategy based on the current heating mode, the current vehicle speed, the current air volume of the air conditioner and the current ambient temperature; A control module is used to control the PTC according to the opening gear of the first PTC and the running time of the first PTC.

7. The device according to claim 6, characterized in that Before determining the PTC opening position and the PTC operation time from the preset PTC control strategy, the determination module is further used to: Construct vehicle heating simulation model; Determine a plurality of heating modes, and respectively in each heating mode, collect at least one air conditioning air volume, a heating mode, at least one PTC power, a vehicle body parameter, and an environmental parameter of at least one target vehicle; Based on each heating mode, the body parameters of the at least one vehicle, the environmental parameters of the at least one vehicle, at least one air-conditioning air volume of each target vehicle and at least one PTC power of each target vehicle are input into the vehicle heating simulation model to obtain the opening gear of the PTC and the operating time of the PTC in each heating mode.

8. The device according to claim 6, characterized in that After controlling the PTC according to the opening gear of the PTC and the running time of the PTC, the control module is further used to: Determining whether the current heating mode is consistent with the target heating mode; If the current heating mode is inconsistent with the target heating mode, a new current vehicle speed, a new current air-conditioning air volume and a new current ambient temperature are re-acquired, and based on the target heating mode, the new current vehicle speed, the new current air-conditioning air volume and the new current ambient temperature, the opening gear of the second PTC and the operating time of the second PTC are re-determined from the preset PTC control strategy; The PTC is controlled according to the opening gear position of the second PTC and the running time of the second PTC.

9. A vehicle, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the PTC gear position control method for a vehicle as claimed in any one of claims 1 to 5.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: The program is executed by a processor to implement the PTC gear position control method for a vehicle as described in any one of claims 1 to 5.

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