Methods, apparatus, equipment and media for detecting icing on self-heating electric charging port covers.

Abstract

This application discloses a method, apparatus, device, and medium for detecting icing on a self-heating electric charging port cover. The icing detection method includes: acquiring first test information at the charging port cover, the first test information including at least: a first opening degree and a first pressure value; determining that the charging port cover is iced when the first opening degree is less than a preset opening degree value and the first pressure value is greater than a preset pressure value, and then sending a start signal to the electric heating device; subsequently, continuously acquiring the pressure values ​​at the charging port cover at various times within a first preset time period to obtain a pressure value set; and calculating the target heating time for opening the charging port cover based on the pressure value set. This application, after confirming that the charging port cover is iced, calculates the target heating time based on the pressure values ​​at various times at the charging port cover and sends it to the user, facilitating users to rationally plan their travel time and thus bringing convenience to users.

Description

Technical Field

[0001] This disclosure generally relates to the field of charging port cover heating technology, and specifically to a method, apparatus, equipment and medium for detecting icing on a self-heating electric charging port cover. Background Technology

[0002] With increasing environmental awareness worldwide, electric vehicles have become one of the most rapidly developing industries. However, electric vehicles need to be charged in real time according to electricity consumption. This is generally done by using a charging gun on a charging station to reach the charging port on the car. At the same time, new energy vehicles are now using a new opening and closing mode that uses the vehicle matrix signal to control the electric opening and closing of the charging port cover.

[0003] However, with the changing seasons, the low temperatures in northern winters have led to widespread icing on various opening and closing parts of vehicles. The electric charging port covers of new energy vehicles inevitably also experience icing. Previously, de-icing the charging port covers relied solely on manual observation by the user, which led to user complaints. To address the aforementioned issues, existing charging port covers are equipped with heating devices. When the charging port cover freezes, the heating device breaks the ice, ensuring normal use. For example, Chinese patent document CN101670776B discloses a car charging port structure, a car, and a method for controlling the car charging port structure. Specifically, it discloses a car charging port structure with a heater and a method for determining the icing state of the charging port based on external temperature and current flowing through the motor. This patent focuses on the structure and the determination method based on that structure, but does not truly consider the user experience. For instance, if the ice layer at the charging port is thick during winter travel, waiting for the heater to break the ice for a long time may cause delays in travel. Therefore, we propose a self-heating electric charging port cover icing detection method to solve the above problems. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a method, apparatus, equipment and medium for detecting icing of self-heating electric charging port covers that provides accurate detection results and improves user experience.

[0005] In a first aspect, this application provides a method for detecting icing on a self-heating electric charging port cover, including:

[0006] An electric heating device is provided on the upper surface of the charging port cover, and the icing detection method includes:

[0007] Obtain first test information at the charging port cover, the first test information including at least: a first opening degree and a first pressure value; the first opening degree is used to reflect the degree to which the charging port cover is opened; the first pressure value is used to reflect the pressure on the charging port cover during the opening process;

[0008] When it is determined that the first opening degree is less than the preset opening degree value and the first pressure value is greater than the preset pressure value, a start signal is sent to the electric heating device;

[0009] The pressure values ​​at the charging port cover are continuously acquired at various times within a first preset time period to obtain a set of pressure values.

[0010] Based on the set of pressure values, the target heating time for opening the charging port cover is calculated.

[0011] According to the technical solution provided in the embodiments of this application, the step of sending a start signal to the electric heating device when determining that the first opening degree is less than a preset opening value and the first pressure value is greater than a preset pressure value specifically includes:

[0012] Based on the first pressure value, the heating command database of the electric heating device is queried to obtain the heating power corresponding to the first pressure value;

[0013] The heating instruction database includes at least: a first pressure value range and a heating power corresponding to the first pressure value range;

[0014] The electric heating device is controlled to operate at the heating power.

[0015] According to the technical solution provided in the embodiments of this application, after calculating the target heating time for opening the charging port cover based on the pressure value set, the method further includes:

[0016] A first prompt message is sent to the user's device; the first prompt message includes at least: the target heating time;

[0017] Receive instruction information from the user terminal, the instruction information including: manual ice breaking and ice breaking by the electric heating device;

[0018] The electric heating device is controlled to operate according to the instruction information.

[0019] According to the technical solution provided in the embodiments of this application, after controlling the operation of the electric heating device according to the instruction information, it further includes:

[0020] The second opening degree of the charging port cover is acquired in real time;

[0021] When it is determined that the second opening degree is greater than or equal to the preset opening degree value, a stop signal is sent to the electric heating device.

[0022] According to the technical solution provided in the embodiments of this application, after determining that the second opening degree is greater than or equal to the preset opening degree value and sending a stop signal to the electric heating device, the method further includes:

[0023] Obtain a first current value, which is the current flowing through the motor used to drive the charging port cover to open;

[0024] When the first current value is determined to be less than the stall current, a second prompt message is sent to the user terminal; the second prompt message is used to indicate to the user terminal that the charging port cover has been de-iced.

[0025] According to the technical solution provided in the embodiments of this application, the step of calculating the target heating time for opening the charging port cover based on the pressure value set specifically includes:

[0026] The average pressure change rate is obtained by obtaining the difference between each adjacent element in the pressure value set.

[0027] The target heating time is calculated based on the average pressure change rate and the first pressure value.

[0028] According to the technical solution provided in the embodiments of this application, before obtaining the first test information at the charging port cover, the method further includes:

[0029] Obtain the initial temperature of the outside environment;

[0030] When the first temperature is determined to be lower than the preset temperature, a first image of the external environment is acquired; the first image is used to reflect the external environmental conditions.

[0031] The first image is input into the recognition module to obtain a first recognition result and a second recognition result; the first recognition result indicates that there is snow or ice in the external environment; the second recognition result indicates that there is no snow or ice in the external environment.

[0032] When the identification module outputs the first identification result, it sends a third prompt message to the user terminal. The third prompt message is used to remind the user terminal that there is a risk of icing at the charging port cover.

[0033] Secondly, this application provides an icing detection device for a self-heating electric charging port cover, comprising:

[0034] The test information acquisition module is configured to acquire first test information at the charging port cover, the first test information including at least: a first opening degree and a first pressure value; the first opening degree and the first pressure value are both used to reflect the icing condition at the charging port cover;

[0035] The test information judgment module is configured to send a start signal to the electric heating device when it determines that the first opening degree is less than a preset opening degree value and the first pressure value is greater than a preset pressure value.

[0036] A pressure acquisition module is configured to continuously acquire the pressure values ​​at the charging port cover at various times within a first preset time period, and obtain a set of pressure values.

[0037] A target heating time calculation module is configured to calculate the target heating time for opening the charging port cover based on the pressure value set.

[0038] Thirdly, a terminal device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, implements the steps of the above-described method for detecting icing of a self-heating electric charging port cover.

[0039] Fourthly, a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the above-described method for detecting icing of a self-heating electric charging port cover.

[0040] In summary, this technical solution specifically discloses a method, apparatus, device, and medium for detecting icing on a self-heating electric charging port cover. The icing detection method includes: acquiring first test information at the charging port cover, the first test information including at least: a first opening degree and a first pressure value; both the first opening degree and the first pressure value are used to reflect the icing situation at the charging port cover; determining that when the first opening degree is less than a preset opening degree value and the first pressure value is greater than a preset pressure value, sending a start signal to the electric heating device; continuously acquiring the pressure values ​​at the charging port cover at various times within a first preset time period to obtain a pressure value set; and calculating the target heating time for opening the charging port cover based on the pressure value set.

[0041] This application uses a combination of the first opening degree and a first pressure value at the charging port cover to determine whether the cover is icy. When icing is confirmed, a heating device installed at the cover is activated. At this time, the target heating time is calculated by continuously acquiring the pressure values ​​at the cover over a first preset time period. In winter, when users need to travel, this target heating time can prompt them to plan their travel accordingly, greatly improving the user experience. Attached Figure Description

[0042] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0043] Figure 1This is a flowchart illustrating a method for detecting icing on a self-heating electric charging port cover.

[0044] Figure 2 This is a schematic diagram of an icing detection device for a self-heating electric charging port cover.

[0045] Figure 3 This is a schematic diagram of a terminal device.

[0046] The diagram is labeled as follows: 500, Terminal device; 501, CPU; 502, ROM; 503, RAM; 504, Bus; 505, I / O interface; 506, Input section; 507, Output section; 508, Storage section; 509, Communication section; 510, Driver; 511, Removable medium; 600, Icing detection device; 601, Test information acquisition module; 602, Test information judgment module; 603, Pressure acquisition module; 604, Target heating time calculation module; 605, Prompt information transmission and reception module. Detailed Implementation

[0047] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0048] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0049] Example 1

[0050] Please refer to Figure 1 The flowchart shown in this embodiment illustrates a method for detecting icing of a self-heating electric charging port cover, and it is clear that an electric heating device for heating the charging port cover is provided on the upper surface of the charging port cover.

[0051] Specifically, the electric charging port device involved in this application is basically similar in principle to the current conventional devices, including: a charging unit built into the vehicle body and a charging cover set on the charging unit port, i.e., the charging port cover. The charging port cover and the charging unit port are connected by a conventional locking structure set on the inside of the charging port cover. The rotating shaft that controls the opening of the charging port cover body is equipped with a motor that drives the rotating shaft to rotate. The motor can control the electric opening / closing of the charging port cover. In addition, the electric charging port device itself also includes conventional components such as a drainage hole to prevent water from flowing into the charging port after thawing and a heightening rubber strip. Since it is similar to conventional devices, the other components will not be described in detail here. In addition to the conventional setup described above, the electric charging port device in this application also includes an electric heating module, a pressure sensor, and an opening detector. Specifically, the pressure sensor is placed inside the charging port cover near the latch, the opening detector is located at the motor, and a heating layer is arranged between the charging port cover body and the decorative cover located outside the charging port cover body. The adaptively enhanced control box, wiring harness, and motor wiring harness are arranged together on the side of the charging unit closer to the interior of the vehicle body to control the opening and closing of the electric heating module.

[0052] Specifically, the icing detection method includes:

[0053] S100: Obtain first test information at the charging port cover, the first test information including at least: a first opening degree and a first pressure value; the first opening degree is used to reflect the degree to which the charging port cover is opened; the first pressure value is used to reflect the pressure on the charging port cover during the opening process;

[0054] S200: When it is determined that the first opening degree is less than the preset opening degree value and the first pressure value is greater than the preset pressure value, a start signal is sent to the electric heating device;

[0055] S300: Continuously acquire the pressure values ​​at the charging port cover at each moment within a first preset time period to obtain a set of pressure values;

[0056] S400: Calculate the target heating time for opening the charging port cover based on the set of pressure values.

[0057] Currently, icing of various opening and closing parts on vehicles is a widespread problem in northern winters. At the same time, the charging port covers of new energy vehicles also experience icing, which not only leads to user complaints and a poor user experience, but can also damage the company's brand image. Therefore, heating devices for the charging port covers have emerged.

[0058] Existing electric heating devices determine the icing state at the charging port by collecting outdoor temperature and the current flowing through the motor, thereby controlling the start and stop of the electric heating device. However, outdoor temperature is an external parameter, so strictly speaking, the determination of the icing state mainly relies on the current flowing through the motor. In low temperatures, the motor's operating state is also affected, which in turn affects the collection of the current flowing through the motor, leading to inaccurate icing determination results. In this embodiment, the first opening degree and the first pressure value of the charging port cover are used as the basis for determining whether the charging port cover is iced, greatly improving the accuracy of the determination.

[0059] Combining the foregoing content and step S100: acquiring first test information at the charging port cover, the detection of the first test information depends on the user's action of trying to open the charging port cover. When the icing detection starts, the user terminal will issue a control command to open the charging port cover, and then the acquisition of the first test information will begin. The first test information includes at least the contents of the first opening degree and the first pressure value, wherein the first opening degree and the first pressure value are both used to reflect the icing situation at the charging port cover. Specifically, the first opening degree represents the degree to which the charging port cover is opened, and the first pressure value represents the pressure that the charging port cover is subjected to during the opening process.

[0060] Furthermore, in step S200: when determining that the first opening degree is less than a preset opening degree value and the first pressure value is greater than a preset pressure value, a start signal is sent to the electric heating device. When the charging port cover receives the opening command, if the opening degree of the charging port cover cannot reach the preset opening degree value (the preset opening degree is, for example, 40°), it means that the charging port cover is in an unopened state. In addition, the first pressure value can also be used to further determine whether the charging port cover is in an open state. Similarly, when the charging port cover receives the opening command, if the collected first pressure value is greater than the preset pressure value (the preset pressure value is the critical pressure value when the charging port cover cannot be opened, and the preset pressure value is, for example, 30N), it also proves that the charging port cover is in an icing state. Here, the first opening degree and the first pressure value can be measured by the opening degree detector and the pressure sensor, respectively. Compared with the existing icing detection method that only uses the external temperature and the stall current flowing through the motor to determine whether the charging port cover is icing, this method provides a more accurate detection result.

[0061] Because the electric heating device at the charging port cover takes different amounts of time to defrost ice layers of varying thicknesses, the defrosting time of the charging port cover becomes particularly important when users need to travel.

[0062] Therefore, in conjunction with step S300: continuously acquiring the pressure values ​​at the charging port cover at various times within the first preset time period, and in order to calculate the target heating time later, the pressure values ​​are generally acquired at equal time intervals to finally obtain a set of pressure values; then step 400: calculating the target heating time for opening the charging port cover based on the set of pressure values, it can be seen that this application will estimate the target heating time based on the existing de-icing efficiency to provide users with a heating time reference so that users can reasonably arrange their travel.

[0063] Specifically, after the electric heating device is started, it continuously acquires pressure values ​​at various times within a first preset time period (e.g., 30 seconds) to obtain a set of pressure values, which is used to calculate the target heating time; wherein, the form of the pressure value set is, for example: {F0 F1 F2 F3 F4......F n The elements in the set are the pressure values ​​at each moment within the first preset time period. F0 can theoretically be understood as the first pressure value.

[0064] Similarly, the pressure values ​​are represented as a set: {F0 F1 F2 F3 F4......F} n For example, by using the pressure value set, the time it takes for the electric heating device to maintain its current heating power and for F0 to drop to within the preset pressure value can be obtained, which is the target heating time.

[0065] Further, step S200: when determining that the first opening degree is less than a preset opening degree value and the first pressure value is greater than a preset pressure value, sending a start signal to the electric heating device specifically includes:

[0066] Based on the first pressure value, the heating instruction database of the electric heating device is queried to obtain the heating power corresponding to the first pressure value; specifically, the heating instruction database shown in Table 1 includes: the range of the first pressure value and the heating power corresponding to the range of the first pressure value.

[0067] Table 1 Example of heating command database structure

[0068]

[0069] It is important to note that the data in the heating command database is for reference only. Specific data calibration needs to be performed by technicians for different vehicle models. Because the charging port cover itself has a small heating area and uses low-voltage heating (typically 12V–13.5V), considering the vehicle's current and wiring harness design requirements, it is not recommended that the heating power exceed 30W for extended periods. Furthermore, this database is established to account for the vehicle's power consumption during the heating process. Therefore, once the first pressure value is determined, the heating power calibrated by technicians beforehand is selected based on the current pressure value. This heating power is the optimal choice under the current pressure value. After confirming the heating power corresponding to the first pressure value, the electric heating device can be controlled to operate at this power, thus providing the user with optimal heating power at the beginning of the ice-breaking process.

[0070] Further, in step S400: after calculating the target heating time for opening the charging port cover based on the pressure value set, the method further includes:

[0071] Step 1: Send the first prompt message to the user terminal; the first prompt message includes at least: the target heating time;

[0072] Once the target heating time is calculated, it will be communicated to the user via a notification message. The user's device can be either an in-vehicle port or a mobile phone, with the sole purpose of informing the user of the target heating time.

[0073] Step 2: Receive instruction information from the user terminal, including instructions for manual ice breaking and ice breaking via electric heating device;

[0074] Considering the actual scenario, if the ice layer at the charging port cover is very thick, the target heating time will also increase accordingly. However, if the user has an urgent matter to attend to and needs to go out, they can choose to manually break the ice to save time. If the user has plenty of time and the required heating time will not affect their travel, they can choose to use an electric heating device to break the ice, saving personal labor.

[0075] Step 3: Control the operation of the electric heating device according to the instruction information.

[0076] It should be noted that when the user reports that the electric heating device is breaking ice, the user can also manually break ice to improve breaking efficiency. When the user reports that manual breaking ice is required, the electric heating device is turned off (to avoid wasting electricity and to prevent safety hazards caused by the electric heating device being on). However, if the user also wants to improve breaking efficiency, they can send a heating command again to activate the electric heating device and speed up the breaking of ice at the charging port cover. Correspondingly, when the user reports that the electric heating device is required, it will continue to operate at the current heating power (obtained from the first pressure value, see the data in the heating command database) by default. This power can be readjusted by the user. The specific combination of ice-breaking methods and the selection of the heating power of the electric heating device can be adjusted by the user according to their needs, without further restrictions.

[0077] Furthermore, in conjunction with step three above, which involves controlling the operation of the electric heating device according to the instruction information, the following steps are also included:

[0078] The second opening degree of the charging port cover is acquired in real time. The second opening degree is used to reflect the opening degree of the charging port cover when entering the ice-breaking stage. However, it should be clear that there is no essential difference between the first opening degree and the second opening degree. The second opening degree can be understood as the change of the first opening degree at various moments in the ice-breaking stage.

[0079] When it is determined that the second opening degree is greater than or equal to the preset opening degree value, a stop signal is sent to the electric heating device. At this time, it is proven that the charging port cover has completed the ice breaking and the charging port cover has reached the preset opening degree.

[0080] However, considering that the melting of ice at the charging port cover may affect the opening detection (for example, the high rubber strip at the electric charging port device may fail, and the ice may happen to be slightly attached to the edge of the charging port cover and fall into the detection range of the opening detector. The probability of this situation is very low but cannot be ignored), after the second opening detection is used to determine whether the charging port cover is open, a second verification method is needed to improve the accuracy of the ice breaking detection.

[0081] Specifically, after sending a stop signal to the electric heating device when the second opening degree is determined to be greater than or equal to the preset opening degree value, the following steps are also included:

[0082] Obtain the first current value, which is the current flowing through the motor used to drive the charging port cover to open;

[0083] Then, if the first current value is less than the stall current (here, stall current refers to the stall current of the motor mentioned above. Generally, the stall current of a motor refers to the current of the motor when the motor shaft is fixed to the motor housing by external force and then the motor is powered on. This is a situation where the motor is still outputting current when the speed is 0 rpm), it indicates that the ice breaking is complete. At this time, a second prompt message can be sent to the user terminal through dual detection. The second prompt message is used to inform the user terminal that the charging port cover has been ice broken and the user can travel normally.

[0084] Specifically, in step S400: based on the set of pressure values, the target heating time for opening the charging port cover is calculated. The calculation of the target heating time can be further divided into:

[0085] Step 1: Obtain the difference between each adjacent element in the pressure value set to get the average pressure change rate. Use this average pressure change rate as the pressure decay rate for subsequent calculations.

[0086] Step 2: Calculate the target heating time based on the average pressure change rate and the first pressure value;

[0087] Here, the pressure values ​​are also set as: {F0 F1 F2 F3 F4...F n For example, F0 and F1 are the pressure values ​​at 1s and 5s respectively, and F2, F3, F4 and F n And so on, namely 10s, 15s, 20s...

[0088] The pressure decay rate can be calculated using the following formula (I):

[0089]

[0090] in, It represents the average rate of change of pressure; n is a positive integer used to refer to the total number of differences between the aforementioned adjacent elements; t represents the interval between two adjacent pressure values ​​when the pressure value is collected;

[0091] After obtaining the average pressure change rate, the target heating time can be calculated using the following formula (II):

[0092]

[0093] Where T represents the target heating time; F0 represents the first pressure value; F x This is represented as the preset pressure;

[0094] It should be noted that the above calculation method is only a simple calculation to obtain the target heating time. There are many ways to calculate it, and the target heating time can be obtained by extension. However, this solution aims to provide users with a prompt for the target heating time, and its calculation process is not limited.

[0095] Furthermore, in order to alert users to adjust their travel plans or take preventative measures against icing of the charging port cover before it is at risk of freezing, the method further includes the following before step S100: obtaining the first test information at the charging port cover:

[0096] Step 1: Obtain the initial ambient temperature;

[0097] Step 2: When the first temperature is less than the preset temperature (the preset temperature can be selected as 0℃), acquire the first image of the outside world;

[0098] The first image is used to reflect the external environmental conditions, such as whether there is snow or ice on the road or windshield. It can promptly remind users that there is a risk of ice forming on the charging port cover and whether to perform an ice detection on the charging port cover.

[0099] Step 3: Input the first image into the recognition module to obtain the first recognition result and the second recognition result; the first recognition result indicates that there is snow or ice in the external environment; the second recognition result indicates that there is no snow or ice in the external environment; the first recognition result may also indicate that snowflakes are falling but have not yet formed snow, etc. The first recognition result and the second recognition result are used to reflect whether there is a risk of icing in the external environment.

[0100] Step 4: When the recognition module outputs the first recognition result, it sends a third prompt message to the user terminal. The third prompt message is used to remind the user terminal that there is a risk of ice formation at the charging port cover.

[0101] When the recognition result is the first recognition result, it means that factors that may cause ice to form on the charging port cover have been identified in the first image, such as "snow accumulation" or "ice" as mentioned above. At this time, a third prompt message can be sent to the user to remind the user that there is a risk of ice forming on the charging port cover of the vehicle. Therefore, if the user has travel plans for tomorrow, they may need to allow more time or the user can take appropriate antifreeze protection measures for the charging port cover, which greatly improves the user experience.

[0102] Example 2

[0103] like Figure 2 As shown, this embodiment provides an icing detection device for a self-heating electric charging port cover, which applies the icing detection method for a self-heating electric charging port cover described in Embodiment 1. The icing detection device 600 includes:

[0104] The test information acquisition module 601 is configured to acquire first test information at the charging port cover. The first test information includes at least: a first opening degree and a first pressure value. Both the first opening degree and the first pressure value are used to reflect the icing condition at the charging port cover.

[0105] The test information judgment module 602 is configured to send a start signal to the electric heating device when it determines that the first opening degree is less than a preset opening degree value and the first pressure value is greater than a preset pressure value.

[0106] Pressure acquisition module 603, the pressure acquisition module is configured to continuously acquire the pressure value at the charging port cover at each moment within a first preset time period, and obtain a set of pressure values.

[0107] The target heating time calculation module 604 is configured to calculate the target heating time for opening the charging port cover based on the pressure value set.

[0108] In addition, the icing detection device 600 also includes: a prompt information transceiver module 605;

[0109] Specifically, in this embodiment, the test information acquisition module 601 is used to acquire the first test information at the charging port cover to detect icing at the charging port cover. In addition, during the ice-breaking process, it is also used to acquire the second opening degree of the charging port cover in real time, thereby monitoring the ice-breaking process at the charging port cover. Finally, after the ice-breaking is completed, the first current value is collected to verify whether the charging port cover is in an uniced state.

[0110] The test information judgment module 602 is used to compare the first opening degree with a preset opening degree value and the first pressure value with a preset pressure value to determine whether the charging port cover is icy. The test information judgment module 602 is also used to compare the second opening degree with a preset opening degree value to determine whether the charging port cover has broken ice (if the second opening degree is greater than or equal to the preset opening degree value, it is preliminarily confirmed that the charging port cover has broken ice). It also compares the first current value with the stall current to verify whether the charging port cover has broken ice (if the first current value is less than the stall current, it is confirmed that the charging port cover has broken ice). In addition, the test information judgment module 602 also includes an electric heating device control unit, which is used to control the operating conditions of the electric heating device according to the above judgment conclusions. The operating conditions include at least: on or off.

[0111] The pressure acquisition module 603 is used to continuously acquire the pressure values ​​at the charging port cover at various times within a first preset time period to obtain a set of pressure values. This module can also be integrated with the test information acquisition module 601, so that the test information acquisition module 601 can directly acquire the pressure values. After the pressure values ​​are acquired, the target heating time calculation module 604 can be used to obtain the target heating time for prompting the user. Finally, the prompt information transceiver module 605 sends the prompt information to the user terminal and provides feedback on the ice-breaking strategy selected by the user.

[0112] In summary, the icing detection device for the self-heating electric charging port cover provided in this embodiment has the following working principle: First, the test information acquisition module 601 acquires the test information needed to determine whether the charging port cover is icing. Then, the test information judgment module 602 makes a judgment and obtains the corresponding judgment information according to the defined judgment logic. However, after detecting that the charging port cover has iced, the pressure acquisition module 603 and the target heating time calculation module 604 are activated. The target heating time can be calculated based on the pressure value set acquired by the pressure acquisition module 603, so that the user can reasonably arrange the travel time according to the currently displayed target heating time.

[0113] Example 3

[0114] A terminal device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the steps of an ice detection method for a self-heating electric charging port cover as described in Embodiment 1.

[0115] In this embodiment, as Figure 3 As shown, the terminal device 500 includes a CPU (Central Processing Unit) 501, which can perform various appropriate actions and processes according to a program stored in ROM (Read-Only Memory) 502 or a program loaded from storage into RAM (Random Access Memory) 503. RAM 503 also stores various programs and data required for system operation. The CPU 501, ROM 502, and RAM 503 are interconnected via a bus 504. An I / O (Input / Output) interface 505 is also connected to the bus 504.

[0116] The following components are connected to I / O interface 505: an input section 506 including a keyboard, mouse, etc.; an output section 507 including a cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.; a storage section 508 including a hard disk, etc.; and a communication section 509 including a network interface card such as a LAN card, modem, etc. The communication section 509 performs communication processing via a network such as the Internet. A drive is also connected to I / O interface 505 as needed. A removable medium 511, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., is installed on drive 510 as needed so that computer programs read from it can be installed into storage section 508 as needed.

[0117] In particular, according to embodiments of the present invention, the above-described flowchart is as follows. Figure 1 The described process can be implemented as a computer software program. For example, Embodiment 3 of the present invention includes a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network via a communication component, and / or installed from a removable medium. When the computer program is executed by the central processing unit (CPU) 501, it performs the functions defined in the system of the present invention.

[0118] It should be noted that the computer-readable medium shown in this invention can be a computer-readable signal medium or a computer-readable storage medium, or any combination thereof. A computer-readable storage medium can be, for example,—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM) 503, read-only memory (ROM) 502, erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this invention, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In this invention, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media can also be any computer-readable medium other than computer-readable storage media, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to: wireless, wire, optical fiber, RF, etc., or any suitable combination thereof.

[0119] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of the present invention. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram or flowchart, and combinations of blocks in a block diagram or flowchart, may be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0120] The units described in the embodiments of the present invention can be implemented in software or hardware, and the described units can also be located in a processor. The names of these units do not necessarily limit the specific unit itself. The described units or modules can also be located in a processor; for example, a processor can be described as including a first generation module, an acquisition module, a search module, a second generation module, and a merging module. The names of these units or modules do not necessarily limit the specific unit or module itself; for example, the acquisition module can also be described as "an acquisition module for acquiring multiple instances to be probed in the base table".

[0121] Example 4

[0122] The present invention also provides a computer-readable medium, which may be included in the electronic device described in the above embodiments; or it may exist independently and not assembled into the electronic device. The computer-readable medium carries one or more programs, which, when executed by the electronic device, cause the electronic device to implement the icing detection method for a self-heating electric charging port cover as described in the above embodiments.

[0123] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A method for detecting icing on a self-heating electric charging port cover, characterized in that, An electric heating device is provided on the upper surface of the charging port cover, and the icing detection method includes: Obtain first test information at the charging port cover, the first test information including at least: a first opening degree and a first pressure value; the first opening degree is used to reflect the degree to which the charging port cover is opened; the first pressure value is used to reflect the pressure on the charging port cover during the opening process; When it is determined that the first opening degree is less than the preset opening degree value and the first pressure value is greater than the preset pressure value, a start signal is sent to the electric heating device; The pressure values ​​at the charging port cover are continuously acquired at various times within a first preset time period to obtain a set of pressure values. Based on the set of pressure values, the target heating time for opening the charging port cover is calculated.

2. The method for detecting icing of a self-heating electric charging port cover according to claim 1, characterized in that, When it is determined that the first opening degree is less than a preset opening value and the first pressure value is greater than a preset pressure value, a start signal is sent to the electric heating device, specifically including: Based on the first pressure value, the heating command database of the electric heating device is queried to obtain the heating power corresponding to the first pressure value; The heating instruction database includes at least: a first pressure value range and a heating power corresponding to the first pressure value range; The electric heating device is controlled to operate at the heating power.

3. The method for detecting icing of a self-heating electric charging port cover according to claim 1, characterized in that, After calculating the target heating time for opening the charging port cover based on the pressure value set, the method further includes: A first prompt message is sent to the user's device; the first prompt message includes at least: the target heating time; Receive instruction information from the user terminal, the instruction information including: manual ice breaking and ice breaking by the electric heating device; The electric heating device is controlled to operate according to the instruction information.

4. The method for detecting icing of a self-heating electric charging port cover according to claim 3, characterized in that, After controlling the electric heating device to operate according to the instruction information, the method further includes: The second opening degree of the charging port cover is acquired in real time; When it is determined that the second opening degree is greater than or equal to the preset opening degree value, a stop signal is sent to the electric heating device.

5. The method for detecting icing of a self-heating electric charging port cover according to claim 4, characterized in that, After determining that the second opening degree is greater than or equal to the preset opening degree value and sending a stop signal to the electric heating device, the method further includes: Obtain a first current value, which is the current flowing through the motor used to drive the charging port cover to open; When the first current value is determined to be less than the stall current, a second prompt message is sent to the user terminal; the second prompt message is used to indicate to the user terminal that the charging port cover has been de-iced.

6. The method for detecting icing of a self-heating electric charging port cover according to claim 1, characterized in that, The step of calculating the target heating time for opening the charging port cover based on the pressure value set specifically includes: The average pressure change rate is obtained by obtaining the difference between each adjacent element in the pressure value set. The target heating time is calculated based on the average pressure change rate and the first pressure value.

7. The method for detecting icing of a self-heating electric charging port cover according to claim 5, characterized in that, Before obtaining the first test information at the charging port cover, the method further includes: Obtain the initial temperature of the outside environment; When the first temperature is determined to be lower than the preset temperature, a first image of the external environment is acquired; the first image is used to reflect the external environmental conditions. The first image is input into the recognition module to obtain a first recognition result and a second recognition result; the first recognition result indicates that there is snow or ice in the external environment; the second recognition result indicates that there is no snow or ice in the external environment. When the identification module outputs the first identification result, it sends a third prompt message to the user terminal. The third prompt message is used to remind the user terminal that there is a risk of icing at the charging port cover.

8. An icing detection device for a self-heating electric charging port cover, characterized in that, include: The test information acquisition module is configured to acquire first test information at the charging port cover, the first test information including at least: a first opening degree and a first pressure value; the first opening degree and the first pressure value are both used to reflect the icing condition at the charging port cover; The test information judgment module is configured to send a start signal to the electric heating device when it determines that the first opening degree is less than a preset opening degree value and the first pressure value is greater than a preset pressure value. A pressure acquisition module is configured to continuously acquire the pressure values ​​at the charging port cover at various times within a first preset time period, and obtain a set of pressure values. A target heating time calculation module is configured to calculate the target heating time for opening the charging port cover based on the pressure value set.

9. A terminal device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the icing detection method for a self-heating electric charging port cover as described in any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program, characterized in that, When the computer program is executed by the processor, it implements the steps of the icing detection method for a self-heating electric charging port cover as described in any one of claims 1-7.

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