A control method, device, and tractor for a trailer power access cover

Abstract

This application relates to the field of automatic control technology and provides a control method, device, and tractor for a trailer power take-off cover. The method includes: acquiring trailer hook status information, trailer power take-off connection information, tractor speed information, and trailer power take-off cover status information. The trailer hook is mounted on the tractor, the trailer power take-off is mounted on the trailer hook, and the trailer power take-off cover is located outside the trailer power take-off. Based on at least one of the above information, the method determines whether the trailer power take-off cover meets automatic opening or automatic closing conditions. When the trailer power take-off cover meets the automatic opening condition, the method controls the trailer power take-off cover to open; or when the trailer power take-off cover meets the automatic closing condition, the method controls the trailer power take-off cover to close. This invention solves the problem of time-consuming, labor-intensive, and inconvenient operation caused by the need for manual opening of the trailer power take-off cover when performing electrical connection operations between the tractor and the trailer.

Description

Technical Field

[0001] This application belongs to the field of automatic control technology, and in particular relates to a control method, device and tractor for a trailer power take-off cover. Background Technology

[0002] The rear of a tractor unit typically features a trailer power input and a trailer hitch. The trailer power input is the interface through which the tractor unit provides power to the trailer, while the trailer hitch is the hook that physically connects the tractor unit and the trailer. The trailer power input is usually located near the trailer connection point, mounted on the trailer hitch, and situated at the rear or bottom of the tractor unit. Furthermore, to prevent damage from the external environment and ensure its proper functioning, the trailer power input is usually covered by a trailer power input cover.

[0003] Because the trailer's power outlet is hidden, the user has to manually operate it to make the electrical connection between the tractor and the trailer. The user has to manually pry open the trailer's power outlet cover while making the connection, which is time-consuming, laborious, and very inconvenient. Summary of the Invention

[0004] This application provides a control method, device, and tractor for a trailer power access cover, which can solve the problem of time-consuming, labor-intensive, and inconvenient operation caused by users having to manually open or close the trailer power access cover when performing electrical connection operations between the tractor and the trailer.

[0005] In a first aspect, embodiments of this application provide a control method for a trailer power access cover, including:

[0006] The system acquires trailer hook status information, trailer power supply connection information, tractor vehicle speed information, and trailer power supply cover status information, wherein the trailer hook is mounted on the tractor vehicle, the trailer power supply is mounted on the trailer hook, and the trailer power supply cover is mounted on the outside of the trailer power supply.

[0007] Based on at least one of the trailer hitch status information, the power port connection information, the vehicle speed information, and the cover status information, determine whether the trailer power port cover meets the automatic opening or automatic closing conditions;

[0008] If the trailer power access cover meets the conditions for automatic opening, control the trailer power access cover to perform the opening action; or, if the trailer power access cover meets the conditions for automatic closing, control the trailer power access cover to perform the closing action.

[0009] In one possible implementation of the first aspect, determining whether the trailer power access cover meets the automatic opening or automatic closing conditions based on at least one of the trailer hitch status information, the power access port connection information, the vehicle speed information, and the cover status information includes:

[0010] When the trailer hook status information is in the trailer hook deployed state, it is determined that the trailer power access cover meets the automatic opening condition.

[0011] When the trailer hook status information is in the trailer hook retracted state, it is determined that the trailer power access cover meets the automatic closing condition.

[0012] In one possible implementation of the first aspect, determining whether the trailer power access cover meets the automatic opening or automatic closing conditions based on at least one of the trailer hitch status information, the power access port connection information, the vehicle speed information, and the cover status information further includes:

[0013] When the cover status information is in the open state, it is determined whether the trailer power access cover meets the automatic closing condition based on at least one of the power access port connection information and the vehicle speed information.

[0014] In one possible implementation of the first aspect, determining whether the trailer power outlet cover meets the automatic closing condition based on at least one of the power outlet connection information and the vehicle speed information includes:

[0015] The duration of the trailer power outlet being disconnected is recorded, where the duration of the disconnection represents the duration during which the trailer power outlet remains in a state of no electrical connection after the trailer power outlet cover is opened.

[0016] Determine whether the duration of the disconnection of the trailer power outlet is greater than a first preset duration. If the duration of the disconnection of the trailer power outlet is greater than the first preset duration, determine that the trailer power outlet cover meets the automatic closing condition.

[0017] In one possible implementation of the first aspect, determining whether the trailer power outlet cover meets the automatic closing condition based on at least one of the power outlet connection information and the vehicle speed information further includes:

[0018] When the power port connection information is in the state of no electrical connection, determine whether the speed of the tractor is greater than the first preset speed based on the vehicle speed information;

[0019] When the speed of the tractor is greater than the first preset speed, it is determined that the power take-off cover of the trailer meets the automatic closing condition.

[0020] In one possible implementation of the first aspect, determining whether the trailer power outlet cover meets the automatic closing condition based on at least one of the power outlet connection information and the vehicle speed information further includes:

[0021] When the power connection information of the trailer power input port changes from an electrically connected state to a non-electrically connected state, it is determined that the trailer power input port has been electrically disconnected.

[0022] When the cover status information is in the open state, the duration of disconnection of the trailer power supply port is counted. The duration of disconnection of the trailer power supply port represents the duration of time that the trailer power supply port remains in a state of no electrical connection after the electrical disconnection of the trailer power supply port.

[0023] Determine whether the disconnection duration of the trailer power outlet is greater than a second preset duration. If the disconnection duration of the trailer power outlet is greater than the second preset duration, determine that the trailer power outlet cover meets the automatic closing condition.

[0024] In one possible implementation of the first aspect, the method further includes:

[0025] Obtain the resistance value of the trailer power take-up cover during the process of performing the cover opening action or the cover closing action;

[0026] When the resistance value is greater than a preset threshold, the trailer power access cover is controlled to perform a reverse action until the cover status information is either open or closed.

[0027] In one possible implementation of the first aspect, the method further includes: when a trailer power access cover opening control command is received, in response to the trailer power access cover opening control command, controlling the trailer power access cover to perform an opening action.

[0028] When a control command to close the trailer power access cover is received, the system responds to the control command to open the trailer power access cover and controls the trailer power access cover to close.

[0029] Secondly, embodiments of this application provide a control device for a trailer power outlet cover, comprising:

[0030] The information acquisition module is used to acquire the trailer hook status information, the trailer power supply port connection information, the tractor vehicle speed information, and the trailer power supply port cover status information. The trailer hook is installed on the tractor vehicle, the trailer power supply port is installed on the trailer hook, and the trailer power supply port cover is installed outside the trailer power supply port.

[0031] The condition judgment module is used to determine whether the trailer power supply port cover meets the automatic opening condition or automatic closing condition based on at least one of the trailer hook status information, the power supply port connection information, the vehicle speed information and the cover status information.

[0032] The cover control module is used to control the trailer power supply cover to perform an opening action when it is determined that the trailer power supply cover meets the automatic opening conditions, or to control the trailer power supply cover to perform a closing action when it is determined that the trailer power supply cover meets the automatic closing conditions.

[0033] Thirdly, embodiments of this application provide a control device for a trailer power outlet cover, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the method described in any of the above-mentioned embodiments.

[0034] Fourthly, embodiments of this application provide a tractor unit, including a trailer hook, a trailer power outlet and a trailer power outlet cover, as well as a control device for implementing the trailer power outlet cover of any of the above methods.

[0035] Fifthly, embodiments of this application provide a computer-readable storage medium storing a computer program that, when executed by a processor, implements the method described in any of the preceding claims.

[0036] Sixthly, embodiments of this application provide a computer program product that, when running on a control device for a trailer power take-off cover, causes the control device for the trailer power take-off cover to execute any of the methods described above.

[0037] The beneficial effects of this application embodiment compared with the prior art are as follows: By acquiring the trailer hook status information, the trailer power outlet connection information, the tractor vehicle speed information, and the trailer power outlet cover status information, based on at least one of the acquired trailer hook status information, power outlet connection information, vehicle speed information, and cover status information, it is determined whether the trailer power outlet cover meets the automatic opening or automatic closing conditions. Since the trailer hook is installed on the tractor vehicle, the trailer power outlet is installed on the trailer hook, and the trailer power outlet cover is installed outside the trailer power outlet, when it is determined that the trailer power outlet cover meets the automatic opening conditions, the trailer power outlet cover is controlled to automatically open. The system automatically opens the trailer power take-off cover. Once the conditions for automatic closing are met, the system controls the trailer power take-off cover to close automatically. No manual operation is required during either the opening or closing process. This automatic control eliminates the need for manual operation when connecting the tractor and trailer, solving the problems of time-consuming, labor-intensive, and inconvenient manual opening and closing of the trailer power take-off cover during electrical connection operations. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a flowchart illustrating a control method for a trailer power take-off cover according to an embodiment of this application;

[0040] Figure 2 This is a schematic diagram illustrating the location of a trailer power outlet according to an embodiment of this application;

[0041] Figure 3 This is a block diagram illustrating the control function of a trailer power outlet cover according to an embodiment of this application;

[0042] Figure 4 This is a schematic diagram of the structure of a control device for a trailer power outlet cover provided in one embodiment of this application. Detailed Implementation

[0043] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0044] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.

[0045] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0046] As used in this application specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if detected [the described condition or event]" may be interpreted, depending on the context, as meaning "once determined," "in response to determination," "once detected [the described condition or event]," or "in response to detection [the described condition or event]."

[0047] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0048] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0049] In existing technology, the tractor unit connects to the trailer through a trailer hook, trailer power port, etc. The tractor unit drives the trailer connected to it by transmitting power. The trailer carries goods or equipment. Through the cooperation of the tractor unit and the trailer, the transportation of goods is realized.

[0050] The trailer power take-off port of the tractor unit is usually located at the rear of the tractor unit, or even at the rear bottom. Furthermore, the trailer power take-off port is usually covered, so when connecting the trailer to the tractor unit's power take-off port, the user typically has to pry open the cover while simultaneously connecting the power take-off port, which is very inconvenient.

[0051] This application provides a control method for a trailer power access cover; see [link to relevant documentation]. Figure 1 , Figure 1 This is a flowchart illustrating a control method for a trailer power take-off cover according to an embodiment of this application, including:

[0052] Step S11: Obtain the trailer hook status information, trailer power supply port connection information, tractor vehicle speed information, and trailer power supply port cover status information. The trailer hook is installed on the tractor vehicle, the trailer power supply port is installed on the trailer hook, and the trailer power supply port cover is installed outside the trailer power supply port.

[0053] Step S12: Determine whether the trailer power take-up cover meets the automatic opening or automatic closing conditions based on at least one of the trailer hook status information, power take-up port connection information, vehicle speed information, and cover status information.

[0054] Step S13: If it is determined that the trailer power access cover meets the automatic opening conditions, control the trailer power access cover to perform the opening action; or, if it is determined that the trailer power access cover meets the automatic closing conditions, control the trailer power access cover to perform the closing action.

[0055] It should be noted that a trailer hitch is installed at the rear of the tractor unit, which is used to physically connect the tractor unit and the trailer. For example... Figure 2 As shown, Figure 2 This is a schematic diagram illustrating the location of a trailer power take-off port according to an embodiment of this application. The trailer hitch of the tractor unit is equipped with a trailer power take-off port, which enables electrical connection between the tractor unit and the trailer, providing power to the trailer to drive it. A trailer power take-off port cover is provided outside the port to protect it from damage by the external environment and ensure its normal operation. The tractor unit is equipped with a control system for the trailer power take-off port cover, which enables automatic control of the cover.

[0056] Specifically, the control system of the trailer power take-off cover acquires the trailer hook status information through sensors, the status information of the trailer hook lock, or the operating information of the trailer hook motor. The trailer hook status information indicates the current state of the trailer hook, including the trailer hook deployed and the trailer hook retracted states. The deployed state indicates that the trailer hook has changed from retracted to deployed and has reached the fully deployed position. The retracted state indicates that the trailer hook has changed from deployed to retracted. For example... Figure 3 As shown, Figure 3 This is a block diagram illustrating the control function of a trailer power take-off cover according to an embodiment of this application. The control system of the trailer power take-off cover acquires the trailer hook status information.

[0057] The control system of the trailer power take-up port cover can also acquire the power take-up port connection information through sensors and other devices. This connection information indicates the electrical connection status between the trailer power take-up port and the trailer, including an electrical connection status and a no-electrical-connection status. An electrical connection status indicates that the trailer power take-up port is electrically connected to the trailer, while a no-electrical-connection status indicates that the trailer power take-up port is not electrically connected to the trailer. For example... Figure 3 As shown, the control system of the trailer power access cover obtains the power access port connection information of the trailer power access port.

[0058] The control system for the trailer power take-off cover can also acquire cover status information via sensors and other devices. This cover status information indicates whether the cover is open or closed, including both open and closed states. For example... Figure 3 As shown, the control system of the trailer power access cover acquires the cover status information.

[0059] The tractor unit is also equipped with a braking control system, which is communicatively connected to the control system of the trailer's power take-off cover, enabling information transmission. The braking control system detects and acquires the tractor unit's speed information through sensors and sends this information to the trailer's power take-off cover's control system. The speed information includes the tractor unit's speed, position, and time. Figure 3 As shown, the control system of the trailer's power access cover obtains the speed information of the tractor.

[0060] The control system of the trailer power take-off cover determines whether the trailer power take-off cover meets the automatic opening conditions based on at least one of the trailer hook status information, power take-off connection information, vehicle speed information, and cover status information. If the control system determines that the trailer power take-off cover meets the automatic opening conditions, it controls the trailer power take-off cover to perform the cover opening action.

[0061] Meanwhile, the control system of the trailer power access cover also provides prompts regarding the status of the trailer power access cover.

[0062] In one optional example, the status information of the trailer hook on the tractor unit is obtained. Based on the trailer hook status information, it is determined whether the trailer power supply cover meets the automatic opening conditions. When the trailer hook status information indicates that the trailer hook is deployed, it means that the user wants to connect the tractor unit and the trailer. At this time, it is determined that the trailer power supply cover meets the automatic opening conditions, and the control system of the trailer power supply cover controls the cover to perform the opening action, completing the opening command of the trailer power supply cover. The entire process can achieve the opening of the trailer power supply cover without manual operation by the user, and the user does not need to pry open the trailer power supply cover to connect the trailer power supply port, saving time and effort.

[0063] Specifically, the system can determine whether the trailer power take-off cover meets the automatic closing conditions based on at least one of the following: trailer hook status information, power take-off port connection information, vehicle speed information, and cover status information. If the automatic closing conditions are met, the system controls the trailer power take-off cover to perform a closing action, completing the closing command. The entire process requires no manual operation from the user to close the trailer power take-off cover, protecting the trailer power take-off port from damage and saving time and effort.

[0064] It is understood that the technical solution provided in this embodiment obtains the trailer hook status information, the trailer power supply port connection information, the tractor vehicle speed information, and the trailer power supply port cover status information. Based on at least one of the obtained trailer hook status information, power supply port connection information, vehicle speed information, and cover status information, it determines whether the trailer power supply port cover meets the automatic opening or automatic closing conditions. Since the trailer hook is installed on the tractor vehicle, the trailer power supply port is installed on the trailer hook, and the trailer power supply port cover is installed outside the trailer power supply port, when it is determined that the trailer power supply port cover meets the automatic opening conditions, the actuator of the trailer power supply port cover is controlled. The cover opening action automatically opens the trailer power take-off cover. Once the automatic closing conditions are met, the cover closes automatically. No manual operation is required during either the opening or closing process. This automatic control eliminates the need for manual operation when connecting the tractor and trailer, solving the time-consuming, labor-intensive, and inconvenient problem associated with manually opening or closing the cover during electrical connection procedures.

[0065] In one possible implementation, step S12 involves determining whether the trailer power take-up cover meets the automatic opening or automatic closing conditions based on at least one of the trailer hook status information, power take-up port connection information, vehicle speed information, and cover status information, including:

[0066] When the trailer hook status information is in the trailer hook deployed state, it is determined that the trailer power take-up cover meets the automatic opening conditions.

[0067] When the trailer hook status information is in the trailer hook retracted state, it is determined that the trailer power take-off cover meets the automatic closing conditions.

[0068] Specifically, in step S12, based on at least one of the trailer hitch status information, power access port connection information, vehicle speed information, and access cover status information, it is determined whether the trailer power access cover meets the automatic opening or automatic closing conditions, including:

[0069] When the information obtained is trailer hook status information, determine whether the trailer power take-off cover meets the conditions for automatic opening or automatic closing based on the trailer hook status information.

[0070] When a user operates the trailer hook to change from retracted to extended, it is assumed that the user wants to open the trailer power supply cover and connect to the trailer power supply port. At this time, when the trailer hook changes from retracted to extended and reaches the fully extended position, the acquired trailer hook status information is the extended state. When the trailer hook status information is in the extended state, it is determined that the trailer power supply cover meets the automatic opening conditions.

[0071] When the user operates the trailer hook to change from retracted to extended, it is assumed that the user wants to open the trailer power supply cover and connect to the trailer power supply port. At this time, when the trailer hook changes from retracted to extended and reaches the fully extended position, the acquired trailer hook status information is the extended state. When the trailer hook status information is in the extended state, it is determined that the trailer power supply cover meets the automatic opening conditions. The trailer power supply cover is then controlled to perform the cover opening action, causing the trailer power supply cover to open automatically.

[0072] When the user operates the trailer hook to change from extended to retracted, it is assumed that the user wants to close the trailer power supply cover and disconnect the trailer power supply. At this time, when the trailer hook changes from extended to retracted, the acquired trailer hook status information is the retracted state. When the trailer hook status information is the retracted state, it is determined that the trailer power supply cover meets the automatic closing conditions, and the cover is controlled to close synchronously during the trailer hook retraction process, without requiring manual operation from the user.

[0073] It should be noted that the trailer hook can be an electric trailer hook, and the trailer power access cover can be an electric trailer power access cover. This invention does not impose any specific limitations on the comparison.

[0074] Understandably, by determining that the trailer power outlet cover meets the automatic opening condition when the trailer hook status information is in the trailer hook deployed state, and the trailer power outlet cover meets the automatic closing condition when the trailer hook status information is in the trailer hook retracted state, the system can determine whether the trailer power outlet cover meets the automatic opening or closing condition based on the trailer hook status information. This enables automatic control of the trailer power outlet cover's automatic opening or closing, synchronizing the trailer hook and trailer power outlet cover, saving time and effort, and making it more convenient and faster for users to connect the trailer power outlet.

[0075] In one possible implementation, step S12, determining whether the trailer power take-up cover meets the automatic opening or automatic closing conditions based on at least one of the trailer hook status information, power take-up port connection information, vehicle speed information, and cover status information, further includes:

[0076] Step S121: When the cover status information is open, determine whether the trailer power access cover meets the automatic closing condition based on at least one of the power access port connection information and vehicle speed information.

[0077] Specifically, in step S12, determining whether the trailer power take-up cover meets the automatic opening or automatic closing conditions based on at least one of the trailer hook status information, power take-up port connection information, vehicle speed information, and cover status information, further includes:

[0078] When the cover status information is "cover open", the user can automatically control the cover to close automatically when they want to disconnect the trailer power supply port.

[0079] When the cover status information indicates the cover is open, determine whether the trailer's power take-off cover meets the automatic closing condition based on at least one of the power take-off port connection information and vehicle speed information. For example: determine whether the trailer's power take-off cover meets the automatic closing condition based on the power take-off port connection information. Or, determine whether the trailer's power take-off cover meets the automatic closing condition based on the tractor vehicle's speed information. If either the power take-off port connection information or the vehicle speed information meets the automatic closing condition, it is determined that the trailer's power take-off cover meets the automatic closing condition.

[0080] Understandably, when the cover status information indicates that the cover is open, the system can determine whether the trailer power take-off cover meets the automatic closing conditions by using at least one of the power take-off connection information and vehicle speed information. After using the trailer power take-off, the system can promptly determine whether the trailer power take-off cover meets the automatic closing conditions based on the power take-off connection information or the tractor vehicle speed information, thereby closing the trailer power take-off cover in a timely manner and protecting the trailer power take-off from damage.

[0081] In one possible implementation, step S121, determining whether the trailer power outlet cover meets the automatic closing conditions based on at least one of the power outlet connection information and vehicle speed information, includes:

[0082] The duration of disconnection of the trailer power outlet is recorded. The duration of disconnection refers to the duration during which the trailer power outlet remains without electrical connection after the trailer power outlet cover is opened.

[0083] Determine whether the duration of the trailer power outlet being disconnected is greater than a first preset duration. If the duration of the trailer power outlet being disconnected is greater than the first preset duration, determine that the trailer power outlet cover meets the automatic closing condition.

[0084] Specifically, in step S121, based on at least one of the power outlet connection information and vehicle speed information, it is determined whether the trailer power outlet cover meets the automatic closing conditions, including:

[0085] When the trailer power connector cover performs the open action, it automatically opens, allowing the user to connect to the trailer power connector. However, if the user has not connected to the trailer power connector for an extended period, to protect the connector, the control system of the trailer power connector cover determines whether the cover meets the closing conditions. If the conditions are met, the system controls the cover to close.

[0086] After the trailer power outlet cover is opened, a timer begins, recording the duration for which the trailer power outlet remains without electrical connection as the unconnected duration. The unconnected duration is then recorded. It is determined whether the unconnected duration exceeds a first preset duration. If the unconnected duration exceeds the first preset duration, the trailer power outlet cover is deemed to meet the automatic closing condition, and the cover is then controlled to close.

[0087] It should be noted that the first preset duration can be set according to the actual situation, such as 5 minutes, and this application does not make a specific limitation on it.

[0088] In one optional example, after the trailer power outlet cover is opened, a 5-minute timer is set. If the power outlet connection information remains in the "no electrical connection" state when the 5-minute timer expires, it is determined that the trailer power outlet is not electrically connected, and the trailer power outlet cover meets the automatic closing condition.

[0089] Specifically, when the duration of the disconnection of the trailer power outlet is not greater than the first preset duration, that is, when the trailer power outlet has been electrically connected within the first preset duration, it is determined that the trailer power outlet cover does not meet the automatic closing conditions, and at this time the trailer power outlet cover is controlled to perform the cover closing action.

[0090] In one optional example, a timer is started after the trailer power outlet cover is opened. If the power outlet connection information changes to an electrical connection status within 5 minutes, the trailer power outlet is considered to be electrically connected, and the trailer power outlet cover does not meet the automatic closing condition.

[0091] Understandably, by using the connection information of the trailer power outlet, it is determined whether the trailer power outlet cover meets the automatic closing conditions. Thus, when the duration of the trailer power outlet's disconnection exceeds a first preset duration, it is determined that the trailer power outlet cover meets the automatic closing conditions, and the trailer power outlet cover is controlled to perform a closing action, automatically controlling the trailer power outlet cover to close and protecting the trailer power outlet from damage.

[0092] In one possible implementation, step S121, determining whether the trailer power outlet cover meets the automatic closing condition based on at least one of the power outlet connection information and vehicle speed information, further includes:

[0093] When the power port connection information is in the state of no electrical connection, determine whether the speed of the tractor is greater than the first preset speed based on the vehicle speed information;

[0094] When the speed of the tractor exceeds the first preset speed, it is determined that the power take-off cover of the trailer meets the automatic closing condition.

[0095] Specifically, in step S121, determining whether the trailer power outlet cover meets the automatic closing conditions based on at least one of the power outlet connection information and vehicle speed information also includes:

[0096] When the cover status information is "cover open" and the power port connection information is "no electrical connection", the system determines whether the trailer's power port cover meets the automatic closing conditions based on the tractor's speed information.

[0097] Based on the tractor's speed information, determine whether the tractor's speed exceeds a first preset speed. If the tractor's speed exceeds the first preset speed, determine that the trailer's power take-off cover meets the automatic closing condition. If the tractor's speed does not exceed the first preset speed, determine that the trailer's power take-off cover does not meet the automatic closing condition.

[0098] It should be noted that the aforementioned first preset speed can be set according to the actual situation of the tractor, for example, the first preset speed can be set to 30km / h. This application does not make any specific limitation on this.

[0099] In one possible implementation, step S121, determining whether the trailer power outlet cover meets the automatic closing condition based on at least one of the power outlet connection information and vehicle speed information, further includes:

[0100] When the power connection information of the trailer power supply port changes from an electrical connection state to a no-electrical connection state, it is determined that the trailer power supply port has been electrically disconnected.

[0101] When the cover status information is in the open state, the duration of disconnection of the trailer power supply port is counted. The duration of disconnection of the trailer power supply port indicates the duration of time that the trailer power supply port remains in a state of no electrical connection after the electrical disconnection occurs.

[0102] Determine whether the duration of disconnection of the trailer power outlet is greater than the second preset duration. If the duration of disconnection of the trailer power outlet is greater than the second preset duration, determine that the trailer power outlet cover meets the automatic closing condition.

[0103] Specifically, in step S121, determining whether the trailer power outlet cover meets the automatic closing conditions based on at least one of the power outlet connection information and vehicle speed information also includes:

[0104] When the power connection information of the trailer power outlet changes from an electrically connected state to an electrically disconnected state, it indicates that the trailer power outlet has been electrically disconnected. If no electrical connection is established for a long time, it means that the trailer and the tractor are no longer electrically connected through the trailer power outlet. In order to protect the trailer power outlet, it is necessary to control the trailer power outlet cover to close automatically.

[0105] When the power connection information of the trailer's power outlet changes from an electrically connected state to a non-electrically connected state, this situation is considered an electrical disconnection of the trailer's power outlet.

[0106] When the trailer power take-off cover is in the open state, and an electrical disconnection occurs at the trailer power take-off, the duration during which the trailer power take-off remains in a state of no electrical connection after the electrical disconnection is defined as the disconnection duration. During the disconnection duration, the trailer power take-off connection information remains in a state of no electrical connection. The disconnection duration of the trailer power take-off is then recorded.

[0107] Based on the statistically obtained duration of the trailer power tap disconnection, compare the duration of disconnection with a second preset duration. If the duration of disconnection exceeds the second preset duration, the trailer power tap cover is determined to meet the automatic closing condition. If the duration of disconnection is not greater than the second preset duration, the trailer power tap cover is determined not to meet the automatic closing condition.

[0108] In an optional example, when the trailer power outlet connection information changes from an electrically connected state to a non-electrically connected state, a 30-second timer is started. If the connection information is still non-electrically connected when the 30-second timer expires, it is determined that the trailer power outlet cover meets the automatic closing condition, and the cover is controlled to close. If the connection information changes from non-electrically connected to electrically connected within 30 seconds, the 30-second timer is stopped and reset to zero.

[0109] It should be noted that the second preset duration can be set according to the actual scenario, such as 30 seconds, and this application does not make a specific limitation on it.

[0110] In one possible implementation, the above method also includes:

[0111] Obtain the resistance value of the trailer power take-up cover during the process of opening or closing the cover;

[0112] When the resistance value is greater than the preset threshold, the control of the trailer power take-off cover to perform a reverse action is performed until the cover status information of the trailer power take-off cover is in the open state or the cover is in the closed state.

[0113] Specifically, the trailer power take-up cover is also equipped with an anti-pinch function. Sensors and other devices acquire the resistance value of the cover during the opening or closing process. When the resistance value exceeds a preset threshold, the anti-pinch function is triggered, and the control system of the trailer power take-up cover reverses the action.

[0114] When the trailer power take-off cover is performing the cover opening action, if the resistance value during the cover opening action exceeds a preset threshold, the control system of the trailer power take-off cover will control the trailer power take-off cover to perform the cover closing action until the cover status information of the trailer power take-off cover is in the open state.

[0115] When the trailer power take-off cover is performing the cover closing action, if the resistance value during the cover closing action exceeds a preset threshold, the control system of the trailer power take-off cover will control the trailer power take-off cover to perform the cover opening action until the cover status information of the trailer power take-off cover is the closed state.

[0116] In one possible implementation, the above method also includes:

[0117] When a control command to open the trailer power take-off cover is received, the system responds to the command by controlling the trailer power take-off cover to open.

[0118] When a control command to close the trailer power access cover is received, the system responds to a control command to open the trailer power access cover by controlling the trailer power access cover to close.

[0119] Specifically, a control switch for adding a trailer power take-off cover is installed on the tractor unit, allowing users to freely control the opening and closing of the trailer power take-off cover. For example... Figure 3 As shown, the control system of the trailer power access cover is triggered manually via the control switch. The control system of the trailer power access cover can also provide status information prompts for the cover.

[0120] When a user triggers the trailer power access cover opening control command via a switch, the trailer power access cover control system, upon receiving the command, responds by controlling the trailer power access cover to open.

[0121] When a user triggers the trailer power access cover closing control command via a switch, the trailer power access cover control system, upon receiving the command, responds by controlling the trailer power access cover to close.

[0122] It should be noted that after the trailer power take-off cover is opened or closed by the user-triggered switch, the control system of the trailer power take-off cover will no longer control the opening or closing of the trailer power take-off cover based on at least one of the following during the current power-on cycle: trailer hook status information, power take-off connection information, vehicle speed information, and cover status information.

[0123] Specifically, a displayable interface or human-machine interface (HMI) can be set for the control system of the trailer power take-off cover to enable soft switching settings. The HMI triggers the control switch of the trailer power take-off cover. When the user clicks the control switch on the HMI, the control system of the trailer power take-off cover is controlled through the HMI. When the HMI receives a cover status information from the control system indicating that the cover is open, the soft switch is switched to open, matching the cover status of the control system. When the HMI receives a cover status information from the control system indicating that the cover is closed, the soft switch is switched to closed.

[0124] It is understood that the technical solution provided in this embodiment obtains the trailer hook status information, the trailer power supply port connection information, the tractor vehicle speed information, and the trailer power supply port cover status information. Based on at least one of the obtained trailer hook status information, power supply port connection information, vehicle speed information, and cover status information, it determines whether the trailer power supply port cover meets the automatic opening or automatic closing conditions. Since the trailer hook is installed on the tractor vehicle, the trailer power supply port is installed on the trailer hook, and the trailer power supply port cover is installed outside the trailer power supply port, when it is determined that the trailer power supply port cover meets the automatic opening conditions, the actuator of the trailer power supply port cover is controlled. The cover opening action automatically opens the trailer power take-off cover. Once the automatic closing conditions are met, the cover closes automatically. No manual operation is required during either the opening or closing process. This automatic control eliminates the need for manual operation when connecting the tractor and trailer, solving the time-consuming, labor-intensive, and inconvenient problem associated with manually opening or closing the cover during electrical connection procedures.

[0125] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0126] Corresponding to the method described in the above embodiments, Figure 4 The diagram shows a schematic of the control device for a trailer power outlet cover according to an embodiment of this application. For ease of explanation, only the parts related to the embodiment of this application are shown.

[0127] Reference Figure 4 The control device 4 for the trailer power take-off cover includes: an information acquisition module 41, used to acquire trailer hook status information, trailer power take-off connection information, tractor speed information and trailer power take-off cover status information, wherein the trailer hook is installed on the tractor, the trailer power take-off is installed on the trailer hook, and the trailer power take-off cover is installed outside the trailer power take-off.

[0128] Condition judgment module 42 is used to determine whether the trailer power take-up cover meets the automatic opening condition or automatic closing condition based on at least one of the trailer hook status information, power take-up port connection information, vehicle speed information and cover status information.

[0129] The cover control module 43 is used to control the trailer power take-off cover to perform an opening action when it is determined that the trailer power take-off cover meets the automatic opening conditions, or to control the trailer power take-off cover to perform a closing action when it is determined that the trailer power take-off cover meets the automatic closing conditions.

[0130] In one possible implementation, the condition judgment module 42 includes:

[0131] The judgment unit 421 is used to determine that the trailer power access cover meets the automatic opening conditions when the trailer hook status information is trailer hook deployed.

[0132] The closing judgment unit 422 is used to determine that the trailer power take-up cover meets the automatic closing condition when the trailer hook status information is trailer hook retracted.

[0133] In one possible implementation, the closing judgment unit 422 is also used to determine whether the trailer power access cover meets the automatic closing condition based on at least one of the power access port connection information and vehicle speed information when the cover status information is the cover open state.

[0134] In one possible implementation, when determining whether the trailer power port cover meets the automatic closing condition based on at least one of the power port connection information and vehicle speed information, the closing judgment unit 422 is specifically used to count the duration of the trailer power port not being connected, wherein the duration of the not being connected represents the duration of the trailer power port remaining in a state of no electrical connection after the trailer power port cover is opened.

[0135] Determine whether the duration of the trailer power outlet being disconnected is greater than a first preset duration. If the duration of the trailer power outlet being disconnected is greater than the first preset duration, determine that the trailer power outlet cover meets the automatic closing condition.

[0136] In one possible implementation, when determining whether the trailer power port cover meets the automatic closing condition based on at least one of the power port connection information and vehicle speed information, the closing judgment unit 422 is further configured to determine whether the speed of the tractor is greater than a first preset speed based on the vehicle speed information when the power port connection information is in a state of no electrical connection.

[0137] When the speed of the tractor exceeds the first preset speed, it is determined that the power take-off cover of the trailer meets the automatic closing condition.

[0138] In one possible implementation, when determining whether the trailer power outlet cover meets the automatic closing condition based on at least one of the power outlet connection information and vehicle speed information, the closing judgment unit 422 is further configured to determine that the trailer power outlet has been electrically disconnected when the power outlet connection information of the trailer power outlet changes from an electrically connected state to a non-electrically connected state.

[0139] When the cover status information is in the open state, the duration of disconnection of the trailer power supply port is counted. The duration of disconnection of the trailer power supply port indicates the duration of time that the trailer power supply port remains in a state of no electrical connection after the electrical disconnection occurs.

[0140] Determine whether the duration of disconnection of the trailer power outlet is greater than the second preset duration. If the duration of disconnection of the trailer power outlet is greater than the second preset duration, determine that the trailer power outlet cover meets the automatic closing condition.

[0141] In one possible implementation, a control device for a trailer power access cover further includes:

[0142] The anti-pinch module 44 is used to obtain the resistance value of the trailer power take-up cover during the process of performing the cover opening or closing action; when the resistance value is greater than the preset threshold, the module controls the trailer power take-up cover to perform the reverse action until the cover status information of the trailer power take-up cover is in the open or closed state.

[0143] In one possible implementation, a control device for a trailer power access cover further includes:

[0144] The switch response module 45 is used to control the trailer power take-off cover to perform the cover opening action in response to the trailer power take-off cover opening control command when it receives the trailer power take-off cover opening control command.

[0145] When a control command to close the trailer power access cover is received, the system responds to a control command to open the trailer power access cover by controlling the trailer power access cover to close.

[0146] It should be noted that the information interaction and execution process between the above-mentioned devices / units are based on the same concept as the method embodiments of this application. For details on their specific functions and technical effects, please refer to the method embodiments section, and they will not be repeated here.

[0147] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0148] This application embodiment also provides a control device for a trailer power outlet cover. The control device includes: at least one processor, a memory, and a computer program stored in the memory and executable on the at least one processor. When the processor executes the computer program, it implements the steps in any of the above method embodiments.

[0149] This application also provides a tractor unit, including a trailer hook, a trailer power inlet and a trailer power inlet cover, as well as a control device for implementing the trailer power inlet cover of any of the above methods.

[0150] This application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps described in the various method embodiments above.

[0151] This application provides a computer program product that, when run on a mobile terminal, enables the mobile terminal to implement the steps described in the above-described method embodiments.

[0152] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments of this application can be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include at least: any entity or device capable of carrying computer program code to a photographing device / terminal device, a recording medium, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electrical carrier signal, a telecommunication signal, and a software distribution medium. Examples include USB flash drives, portable hard drives, magnetic disks, or optical disks. In some jurisdictions, according to legislation and patent practice, computer-readable media cannot be electrical carrier signals or telecommunication signals.

[0153] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0154] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0155] In the embodiments provided in this application, it should be understood that the disclosed apparatus / network devices and methods can be implemented in other ways. For example, the apparatus / network device embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0156] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0157] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A control method for a trailer power outlet cover, characterized in that, include: The system acquires trailer hook status information, trailer power supply connection information, tractor vehicle speed information, and trailer power supply cover status information, wherein the trailer hook is mounted on the tractor vehicle, the trailer power supply is mounted on the trailer hook, and the trailer power supply cover is mounted on the outside of the trailer power supply. Based on at least one of the trailer hitch status information, the power port connection information, the vehicle speed information, and the cover status information, determine whether the trailer power port cover meets the automatic opening or automatic closing conditions; If the trailer power access cover meets the automatic opening conditions, control the trailer power access cover to perform the opening action; or, if the trailer power access cover meets the automatic closing conditions, control the trailer power access cover to perform the closing action. The step of determining whether the trailer power access cover meets the automatic opening or automatic closing conditions based on at least one of the trailer hitch status information, the power access port connection information, the vehicle speed information, and the cover status information includes: When the trailer hook status information is in the trailer hook deployed state, it is determined that the trailer power access cover meets the automatic opening condition. When the trailer hook status information is in the trailer hook retracted state, it is determined that the trailer power access cover meets the automatic closing condition.

2. The control method for the trailer power access cover as described in claim 1, characterized in that, The step of determining whether the trailer power access cover meets the automatic opening or automatic closing conditions based on at least one of the trailer hook status information, the power access port connection information, the vehicle speed information, and the cover status information further includes: When the cover status information is in the open state, it is determined whether the trailer power access cover meets the automatic closing condition based on at least one of the power access port connection information and the vehicle speed information.

3. The control method for the trailer power access cover as described in claim 2, characterized in that, Determining whether the trailer power outlet cover meets the automatic closing conditions based on at least one of the power outlet connection information and the vehicle speed information includes: The duration of the trailer power outlet being disconnected is recorded, where the duration of the disconnection represents the duration during which the trailer power outlet remains in a state of no electrical connection after the trailer power outlet cover is opened. Determine whether the duration of the disconnection of the trailer power outlet is greater than a first preset duration. If the duration of the disconnection of the trailer power outlet is greater than the first preset duration, determine that the trailer power outlet cover meets the automatic closing condition.

4. The control method for the trailer power access cover as described in claim 2, characterized in that, The step of determining whether the trailer power outlet cover meets the automatic closing condition based on at least one of the power outlet connection information and the vehicle speed information further includes: When the power port connection information is in the state of no electrical connection, determine whether the speed of the tractor is greater than the first preset speed based on the vehicle speed information; When the speed of the tractor is greater than the first preset speed, it is determined that the power take-off cover of the trailer meets the automatic closing condition.

5. The control method for the trailer power access cover as described in claim 2, characterized in that, The step of determining whether the trailer power outlet cover meets the automatic closing condition based on at least one of the power outlet connection information and the vehicle speed information further includes: When the power connection information of the trailer power input port changes from an electrically connected state to a non-electrically connected state, it is determined that the trailer power input port has been electrically disconnected. When the cover status information is in the open state, the duration of disconnection of the trailer power supply port is counted. The duration of disconnection of the trailer power supply port represents the duration of time that the trailer power supply port remains in a state of no electrical connection after the electrical disconnection of the trailer power supply port. Determine whether the disconnection duration of the trailer power outlet is greater than a second preset duration. If the disconnection duration of the trailer power outlet is greater than the second preset duration, determine that the trailer power outlet cover meets the automatic closing condition.

6. The control method for the trailer power access cover as described in claim 1, characterized in that, The method further includes: Obtain the resistance value of the trailer power take-up cover during the process of performing the cover opening action or the cover closing action; When the resistance value is greater than a preset threshold, the trailer power access cover is controlled to perform a reverse action until the cover status information is either open or closed.

7. The control method for the trailer power access cover as described in any one of claims 1-6, characterized in that, The method further includes: When a control command to open the trailer power access cover is received, the system responds to the control command by controlling the trailer power access cover to open. When a control command to close the trailer power access cover is received, the system responds to the control command to open the trailer power access cover and controls the trailer power access cover to close.

8. A control device for a trailer power outlet cover, characterized in that, include: The information acquisition module is used to acquire the trailer hook status information, the trailer power supply port connection information, the tractor vehicle speed information, and the trailer power supply port cover status information. The trailer hook is installed on the tractor vehicle, the trailer power supply port is installed on the trailer hook, and the trailer power supply port cover is installed outside the trailer power supply port. The condition judgment module is used to determine whether the trailer power supply port cover meets the automatic opening condition or automatic closing condition based on at least one of the trailer hook status information, the power supply port connection information, the vehicle speed information and the cover status information. The cover control module is used to control the trailer power supply cover to perform an opening action when it is determined that the trailer power supply cover meets the automatic opening conditions, or to control the trailer power supply cover to perform a closing action when it is determined that the trailer power supply cover meets the automatic closing conditions. The condition judgment module includes: The activation judgment unit is used to determine that the trailer power access cover meets the automatic opening condition when the trailer hook status information is in the trailer hook deployed state. The shut-off judgment unit is used to determine that the trailer power take-off cover meets the automatic shut-off condition when the trailer hook status information is in the trailer hook retracted state.

9. A tractor unit, characterized in that, It includes a trailer hitch, a trailer power outlet and a trailer power outlet cover, and a control device for implementing the trailer power outlet cover for any one of the methods described in 1 to 7.

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