Control method and device for trailer power-taking covering cap and tractor

Abstract

The invention is suitable for the technical field of automatic control, and provides a control method and device for a trailer electricity taking covering cap and a tractor, and the control method comprises the steps that trailer hook state information of a trailer hook, electricity taking port connection information of a trailer electricity taking port, vehicle speed information of the tractor and covering cap state information of the trailer electricity taking covering cap are obtained, and the trailer hook is arranged on the tractor; the trailer power taking port is formed in the trailer hook, the trailer power taking port cover is arranged outside the trailer power taking port, whether the trailer power taking port cover meets an automatic opening condition or an automatic closing condition or not is determined according to at least one of the information, and when the trailer power taking port cover meets the automatic opening condition, the trailer power taking port cover is controlled to execute a port cover opening action. Or when the trailer electricity-taking covering cap meets the automatic closing condition, the trailer electricity-taking covering cap is controlled to execute the covering cap closing action. The problems that time and labor are wasted and operation is inconvenient due to the fact that a user needs to manually open a trailer electricity taking opening cover when electrical connection operation is conducted between a tractor and a trailer can be solved.

Description

Technical Field

[0001] The present application belongs to the field of automatic control technology, and in particular, relates to a control method and device for a trailer power access cover, and a tractor. Background Art

[0002] The rear of the tractor is generally provided with a trailer power port and a trailer hook. The trailer power port is the interface through which the tractor provides power to the trailer, and the trailer hook is the hook that physically connects the tractor and the trailer. The trailer power port is usually close to the trailer connection, installed on the trailer hook, and located at the rear or rear bottom of the tractor. In addition, in order to prevent the trailer power port from being damaged by the external environment and ensure its normal operation, a trailer power port cover is usually provided on the outside of the trailer power port.

[0003] Since the power port of the trailer is concealed, the user needs to manually operate the electrical connection between the tractor and the trailer, manually opening the trailer power port cover while performing the connection operation, which is time-consuming, laborious and very inconvenient. Summary of the invention

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

[0005] In a first aspect, an embodiment of the present application provides a method for controlling a trailer power access cover, comprising:

[0006] Acquire trailer hook status information of the trailer hook, power port connection information of the trailer power port, vehicle speed information of the tractor, and cover status information of the trailer power port cover, wherein the trailer hook is arranged on the tractor, the trailer power port is arranged on the trailer hook, and the trailer power port cover is arranged outside the trailer power port;

[0007] Determining whether the trailer power port cover meets an automatic opening condition or an automatic closing condition according to at least one of the trailer hook state information, the power port connection information, the vehicle speed information, and the cover state information;

[0008] When it is determined that the trailer power access port cover meets the automatic opening condition, the trailer power access port cover is controlled to perform the cover opening action; or, when it is determined that the trailer power access port cover meets the automatic closing condition, the trailer power access port cover is controlled to perform the cover closing action.

[0009] In a possible implementation of the first aspect, determining whether the trailer power port cover meets the automatic opening condition or the automatic closing condition according to at least one of the trailer hook state information, the power port connection information, the vehicle speed information, and the cover state information includes:

[0010] When the trailer hook state information of the trailer hook is in the trailer hook deployed state, determining that the trailer power access port cover meets the automatic opening condition;

[0011] When the trailer hook state information of the trailer hook is a trailer hook retracted state, it is determined that the trailer power port cover meets an automatic closing condition.

[0012] In a possible implementation of the first aspect, determining whether the trailer power port cover meets the automatic opening condition or the automatic closing condition according to at least one of the trailer hook state information, the power port connection information, the vehicle speed information, and the cover state information further includes:

[0013] When the cover state information indicates that the cover is in an open state, it is determined whether the trailer power port cover meets an automatic closing condition according to at least one of the power port connection information and the vehicle speed information.

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

[0015] Counting the duration of disconnection of the trailer power port, wherein the duration of disconnection indicates the duration of time that the trailer power port remains without electrical connection after the trailer power port cover is opened;

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

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

[0018] When the power port connection information indicates that there is no electrical connection, determining whether the speed of the tractor is greater than a first preset speed according to the vehicle speed information;

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

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

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

[0022] When the cover status information is in the cover open state, the disconnection duration of the trailer power port is counted, wherein the disconnection duration of the trailer power port indicates the duration of time that the trailer power port remains without electrical connection after the trailer power port is electrically disconnected;

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

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

[0025] Obtaining a resistance value of the trailer power access cover when 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 port cover is controlled to perform a reverse action until the cover state information of the trailer power access port cover is a cover open state or a cover closed state.

[0027] In a possible implementation of the first aspect, the method further includes: when receiving a trailer power access port cover opening control instruction, in response to the trailer power access port cover opening control instruction, controlling the trailer power access port cover to perform a cover opening action;

[0028] When a trailer power access port cover closing control instruction is received, in response to the trailer power access port cover opening control instruction, the trailer power access port cover is controlled to perform a cover closing action.

[0029] In a second aspect, an embodiment of the present application provides a control device for a trailer power access cover, comprising:

[0030] an information acquisition module, used to acquire trailer hook status information of the trailer hook, power port connection information of the trailer power port, vehicle speed information of the tractor, and cover status information of the trailer power port cover, wherein the trailer hook is arranged on the tractor, the trailer power port is arranged on the trailer hook, and the trailer power port cover is arranged outside the trailer power port;

[0031] A condition judgment module, used to determine whether the trailer power port cover meets the automatic opening condition or the automatic closing condition according to at least one of the trailer hook state information, the power port connection information, the vehicle speed information and the cover state information;

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

[0033] In a third aspect, an embodiment of the present application provides a control device for a trailer power access cover, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements any of the methods described above when executing the computer program.

[0034] In a fourth aspect, an embodiment of the present application provides a tractor, comprising a trailer hook, a trailer power port and a trailer power port cover, and a control device for the trailer power port cover for implementing any of the methods described above.

[0035] In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, it implements any of the methods described above.

[0036] In a sixth aspect, an embodiment of the present application provides a computer program product. When the computer program product runs on a control device of a trailer power access port cover, the control device of the trailer power access port cover executes any of the methods described above.

[0037] Compared with the prior art, the embodiments of the present application have the following beneficial effects: by acquiring the trailer hook status information of the trailer hook, the power port connection information of the trailer power port, the speed information of the tractor and the cover status information of the trailer power port, and according to at least one of the acquired trailer hook status information, the power port connection information, the speed information and the cover status information, determining whether the trailer power port cover meets the automatic opening condition or the automatic closing condition; since the trailer hook is arranged on the tractor, the trailer power port is arranged on the trailer hook, and the trailer power port cover is arranged outside the trailer power port, when it is determined that the trailer power port cover meets the automatic opening condition, the trailer power port cover is controlled to execute the automatic opening condition. The power port cover of the trailer is automatically opened by performing the cover opening action. When it is determined that the power port cover of the trailer meets the automatic closing conditions, the power port cover of the trailer is controlled to execute the cover closing action to complete the automatic closing of the power port cover of the trailer. No manual operation is required by the user during the cover opening action and the cover closing action. The opening and closing of the power port cover of the trailer can be automatically controlled, so that the user does not need to manually open or close the power port cover of the trailer when performing the electrical connection operation between the tractor and the trailer, thereby solving the problem of time-consuming, labor-intensive and inconvenient operation caused by the user having to manually open or close the power port cover of the trailer when performing the electrical connection operation between the tractor and the trailer. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0039] Figure 1 It is a flowchart of a method for controlling a trailer power access cover provided by an embodiment of the present application;

[0040] Figure 2 This is a schematic diagram of the location setting of a trailer power port provided by an embodiment of the present application;

[0041] Figure 3 It is a block diagram schematic diagram of a control function of a trailer power access cover provided by an embodiment of the present application;

[0042] Figure 4 It is a structural schematic diagram of a control device for a trailer power access cover provided in one embodiment of the present application. DETAILED DESCRIPTION

[0043] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

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

[0045] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0046] As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce [described condition or event] is detected" or "in response to detecting [described condition or event]", depending on the context.

[0047] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0048] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0049] In the prior art, a tractor is connected to a trailer through a trailer hook, a trailer power port, etc. The tractor drives the trailer connected to it by transmitting power. The trailer carries goods or equipment. The transportation of goods is achieved through the cooperation of the tractor and the trailer.

[0050] The trailer power port of the tractor is usually arranged at the rear of the tractor, or even at the rear bottom of the tractor. In addition, the trailer power port is usually provided with a trailer power port cover. When the user connects the trailer to the trailer power port of the tractor, it is usually necessary to open the trailer power port cover while connecting the trailer power port, which is very inconvenient.

[0051] The present application embodiment provides a method for controlling a trailer power access cover. Figure 1 , Figure 1 1 is a flow chart of a method for controlling a trailer power access cover provided by an embodiment of the present application, including:

[0052] Step S11, obtaining trailer hook status information of the trailer hook, power port connection information of the trailer power port, vehicle speed information of the tractor, and cover status information of the trailer power port cover, wherein the trailer hook is arranged on the tractor, the trailer power port is arranged on the trailer hook, and the trailer power port cover is arranged outside the trailer power port;

[0053] Step S12, determining whether the trailer power port cover meets the automatic opening condition or the automatic closing condition according to at least one of the trailer hook state information, the power port connection information, the vehicle speed information and the cover state information;

[0054] Step S13, when it is determined that the trailer power access port cover meets the automatic opening condition, the trailer power access port cover is controlled to perform the cover opening action, or, when it is determined that the trailer power access port cover meets the automatic closing condition, the trailer power access port cover is controlled to perform the cover closing action.

[0055] It should be noted that a trailer hook is provided at the rear of the tractor, and the trailer hook is used to achieve the physical connection between the tractor and the trailer. Figure 2 As shown, Figure 2 This is a schematic diagram of the location setting of a trailer power port provided by an embodiment of the present application. The trailer power port is provided on the trailer hook of the tractor. The trailer power port is used to realize the electrical connection between the tractor and the trailer. After the electrical connection, it provides power to the trailer to drive the trailer. A trailer power port cover is provided outside the trailer power port. The trailer power port cover is used to protect the trailer power port, prevent the trailer power port from being damaged by the external environment, and ensure the normal operation of the trailer power port. A control system for the trailer power port cover is provided on the tractor. The control system of the trailer power port cover can realize automatic control of the trailer power port cover.

[0056] Specifically, the control system of the trailer power access cover obtains the trailer hook status information of the trailer hook through sensors, status information of the trailer hook lock, or motor operation information of the trailer hook. The trailer hook status information of the trailer hook is used to indicate the current state of the trailer hook, including the trailer hook deployment state and the trailer hook retraction state, wherein the trailer hook deployment state indicates that the trailer hook changes from retraction to deployment, and the trailer hook reaches the fully deployed position. The trailer hook retraction state indicates that the trailer hook changes from deployment to retraction. Figure 3 As shown, Figure 3 It is a block diagram of a control function of a trailer power port cover provided in one embodiment of the present application, and the control system of the trailer power port cover obtains trailer hook status information of the trailer hook.

[0057] The control system of the trailer power port cover can also obtain the power port connection information of the trailer power port through sensors and other devices. Among them, the power port connection information of the trailer power port is used to indicate the electrical connection status information between the trailer power port and the trailer, including electrical connection status and no electrical connection status. The electrical connection status indicates that the trailer power port is electrically connected to the trailer, and the no electrical connection status indicates that the trailer power port is not electrically connected to the trailer. Figure 3 As shown, the control system of the trailer power port cover obtains the power port connection information of the trailer power port.

[0058] The control system of the trailer power access cover can also obtain the cover status information of the trailer power access cover through sensors and other devices. Among them, the cover status information of the trailer power access cover is used to indicate the open or closed state of the trailer power access cover, including the cover open state and the cover closed state. Figure 3 As shown, the control system of the trailer power access cover obtains the cover status information of the trailer power access cover.

[0059] The tractor is also equipped with a brake control system, which is connected to the control system of the trailer power access cover to transmit information. The brake control system obtains the speed information of the tractor through sensors and other detections, and sends the obtained speed information of the tractor to the control system of the trailer power access cover. The speed information includes the speed, location, time and other information of the tractor. Figure 3 As shown, the control system of the trailer power access cover obtains the speed information of the tractor.

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

[0061] At the same time, the control system of the trailer power access cover also prompts the cover status information of the trailer power access cover.

[0062] In an optional example, the trailer hook status information of the trailer hook on the tractor is obtained, and based on the trailer hook status information, it is determined whether the trailer power port cover meets the automatic opening condition. When the trailer hook status information is the trailer hook unfolded state, it means that the user wants to connect the tractor and the trailer. At this time, it is determined that the trailer power port cover meets the automatic opening condition, and the control system of the trailer power port cover controls the trailer power port cover to execute the cover opening action, completing the opening command of the trailer power port cover. The entire process can realize the opening of the trailer power port cover without manual operation by the user, and the user does not need to bend the trailer power port cover to connect the trailer power port, which saves time and effort.

[0063] Specifically, it is also possible to determine whether the trailer power access port cover meets the automatic closing condition 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. If it is determined that the trailer power access port cover meets the automatic closing condition, the trailer power access port cover is controlled to execute the cover closing action to complete the closing command of the trailer power access port cover. The entire process can achieve the closing of the trailer power access port cover without manual operation by the user, and the user does not need to manually close the trailer power access port cover, thereby protecting the trailer power access port from damage and saving time and effort.

[0064] It can be understood that the technical solution provided in this embodiment determines whether the trailer power port cover meets the automatic opening condition or the automatic closing condition by obtaining the trailer hook status information of the trailer hook, the power port connection information of the trailer power port, the speed information of the tractor and the cover status information of the trailer power port, and according to at least one of the obtained trailer hook status information, the power port connection information, the speed information and the cover status information. Since the trailer hook is arranged on the tractor, the trailer power port is arranged on the trailer hook, and the trailer power port cover is arranged outside the trailer power port, when it is determined that the trailer power port cover meets the automatic opening condition, the trailer power port cover is controlled to execute the opening. The cover opening action completes the automatic opening of the trailer power access port cover. When it is determined that the trailer power access port cover meets the automatic closing conditions, the trailer power access port cover is controlled to execute the cover closing action to complete the automatic closing of the trailer power access port cover. No manual operation is required by the user during the cover opening action and the cover closing action. The opening and closing of the trailer power access port cover can be automatically controlled, so that the user does not need to manually open or close the trailer power access port cover when performing the electrical connection operation between the tractor and the trailer, thereby solving the problem of time-consuming, labor-intensive and inconvenient operation caused by the user having to manually open or close the trailer power access port cover when performing the electrical connection operation between the tractor and the trailer.

[0065] In a possible implementation, in step S12, determining whether the trailer power port cover meets the automatic opening condition or the automatic closing condition according to at least one of the trailer hook state information, the power port connection information, the vehicle speed information, and the cover state information includes:

[0066] When the trailer hook state information of the trailer hook is in the trailer hook deployed state, determining that the trailer power access port cover meets the automatic opening condition;

[0067] When the trailer hook state information of the trailer hook is a trailer hook retracted state, it is determined that the trailer power access port cover meets the automatic closing condition.

[0068] Specifically, in step S12, determining whether the trailer power port cover meets the automatic opening condition or the automatic closing condition according to at least one of the trailer hook state information, the power port connection information, the vehicle speed information and the cover state information includes:

[0069] When the acquired information is trailer hook status information, it is determined whether the trailer power access port cover meets the automatic opening condition or the automatic closing condition according to the trailer hook status information.

[0070] When the user operates the trailer hook from retracting to extending, it is considered that the user wants to open the trailer power port cover and connect the trailer power port. At this time, when the trailer hook changes from retracting to extending and the trailer hook reaches the fully extended position, the trailer hook state information obtained at this time is the trailer hook extended state. When the trailer hook state information of the trailer hook is the trailer hook extended state, it is determined that the trailer power port cover meets the automatic opening condition.

[0071] When the user operates the trailer hook from retracting to unfolding, it is considered that the user wants to open the trailer power port cover and connect the trailer power port. At this time, when the trailer hook changes from retracting to unfolding and the trailer hook reaches the fully unfolded position, the trailer hook state information obtained at this time is the trailer hook unfolded state. When the trailer hook state information of the trailer hook is the trailer hook unfolded state, it is determined that the trailer power port cover meets the automatic opening condition. The trailer power port cover is controlled to perform the cover opening action, so that the trailer power port cover is automatically opened.

[0072] When the user operates the trailer hook from being extended to being retracted, it is considered that the user wants to close the trailer power port cover and disconnect the trailer power port. At this time, when the trailer hook is extended to being retracted, the trailer hook status information obtained at this time is the trailer hook retracted state. When the trailer hook status information of the trailer hook is the trailer hook retracted state, it is determined that the trailer power port cover meets the automatic closing condition, and the trailer power port cover is controlled to perform the cover closing action, so that the trailer power port cover is closed synchronously during the process of the trailer hook being retracted, without the need for manual operation by the user.

[0073] It should be noted that the trailer hook may be an electric trailer hook, and the trailer power port cover may be an electric trailer power port cover, and the present invention does not make any specific limitation thereto.

[0074] It can be understood that by determining that the trailer power port cover meets the automatic opening condition when the trailer hook status information of the trailer hook is the trailer hook extended state, and determining that the trailer power port cover meets the automatic closing condition when the trailer hook status information of the trailer hook is the trailer hook retracted state, it is possible to determine whether the trailer power port cover meets the automatic opening condition or the automatic closing condition according to the trailer hook status information, thereby automatically controlling the automatic opening or automatic closing of the trailer power port cover, realizing synchronization between the trailer hook and the trailer power port cover, saving time and effort, and making it more convenient and quick for users to connect to the trailer power port.

[0075] In a possible implementation, in step S12, determining whether the trailer power port cover meets the automatic opening condition or the automatic closing condition according to at least one of the trailer hook state information, the power port connection information, the vehicle speed information and the cover state information, further includes:

[0076] Step S121, when the cover state information is that the cover is open, determine whether the trailer power port cover meets the automatic closing condition according to at least one of the power port connection information and the vehicle speed information.

[0077] Specifically, in step S12, determining whether the trailer power port cover meets the automatic opening condition or the automatic closing condition according to at least one of the trailer hook state information, the power port connection information, the vehicle speed information and the cover state information, further includes:

[0078] When the cover status information indicates that the cover is open and the user wants to disconnect the trailer power port, the trailer power port cover can be automatically controlled to close automatically.

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

[0080] It can be understood that when the cover status information shows that the cover is open, by determining whether the trailer power port cover meets the automatic closing condition based on at least one of the power port connection information and the vehicle speed information, after the trailer power port is used, it is possible to promptly determine whether the trailer power port cover meets the automatic closing condition based on the power port connection information or the vehicle speed information of the tractor, thereby closing the trailer power port cover in time to protect the trailer power port from damage.

[0081] In a possible implementation, step S121, determining whether the trailer power port cover meets the automatic closing condition according to at least one of the power port connection information and the vehicle speed information, includes:

[0082] Count the duration of disconnection of the trailer power port, where the duration of disconnection refers to the duration of time that the trailer power port remains without electrical connection after the trailer power port cover is opened;

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

[0084] Specifically, in step S121, determining whether the trailer power port cover meets the automatic closing condition according to at least one of the power port connection information and the vehicle speed information includes:

[0085] When the trailer power port cover performs the cover opening action, the trailer power port cover automatically opens, and at this time, the user connects to the trailer power port. However, when the user does not connect to the trailer power port for a long time, in order to protect the trailer power port, the control system of the trailer power port cover determines whether the trailer power port cover meets the closing condition. When it is determined that the trailer power port cover meets the closing condition, the trailer power port cover is controlled to perform the closing action.

[0086] After the trailer power port cover is opened, the timing starts, and the duration that the trailer power port remains without electrical connection is taken as the duration of disconnection of the trailer power port. The duration of disconnection of the trailer power port is counted. It is determined whether the duration of disconnection of the trailer power port is greater than a first preset duration. When the duration of disconnection of the trailer power port is greater than the first preset duration, it is determined that the trailer power port cover meets the automatic closing condition. At this time, the trailer power port cover is controlled to execute the cover closing action.

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

[0088] In an optional example, after the trailer power port cover is opened, a 5-minute timer is started. When the 5-minute timer expires, if the power port connection information of the trailer power port remains in a no electrical connection state, it is determined that the trailer power port is not electrically connected successfully, and the trailer power port cover meets the automatic closing condition.

[0089] Specifically, when the trailer power port is disconnected for no longer than a first preset time period, that is, the trailer power port is electrically connected within the first preset time period, it is determined that the trailer power port cover does not meet the automatic closing conditions, and the trailer power port cover is controlled to perform the cover closing action.

[0090] In an optional example, a timer is started after the trailer power port cover is opened. Within 5 minutes, if the power port connection information of the trailer power port changes to an electrical connection state, it is determined that the trailer power port is electrically connected successfully, and the trailer power port cover does not meet the automatic closing condition.

[0091] It can be understood that the power port connection information of the trailer power port is used to determine whether the trailer power port cover meets the automatic closing conditions, so that when the trailer power port is disconnected for a period of time greater than a first preset period of time, it is determined that the trailer power port cover meets the automatic closing conditions, the trailer power port cover is controlled to execute the closing action, and the trailer power port cover is automatically controlled to close, thereby protecting the trailer power port from damage.

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

[0093] When the power port connection information indicates that there is no electrical connection, determining whether the speed of the tractor is greater than a first preset speed according to the vehicle speed information;

[0094] When the speed of the tractor is greater than a first preset speed, it is determined that the trailer power access port cover meets the automatic closing condition.

[0095] Specifically, in step S121, determining whether the trailer power port cover meets the automatic closing condition according to at least one of the power port connection information and the vehicle speed information, further includes:

[0096] When the cover status information indicates that the cover is open and the power port connection information indicates that there is no electrical connection, it is determined whether the trailer power port cover meets the automatic closing conditions based on the speed information of the tractor.

[0097] According to the speed information of the tractor, it is determined whether the speed of the tractor is greater than a first preset speed, and when the speed of the tractor is greater than the first preset speed, it is determined that the trailer power access port cover meets the automatic closing condition. When the speed of the tractor is not greater than the first preset speed, it is determined that the trailer power access port cover does not meet the automatic closing condition.

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

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

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

[0101] When the cover status information is in the cover open state, the disconnection duration of the trailer power port is counted, wherein the disconnection duration of the trailer power port indicates the duration of time that the trailer power port remains without electrical connection after the trailer power port is electrically disconnected;

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

[0103] Specifically, in step S121, determining whether the trailer power port cover meets the automatic closing condition according to at least one of the power port connection information and the vehicle speed information, further includes:

[0104] When the power port connection information of the trailer power port changes from an electrically connected state to a no-electrically connected state, it means that the trailer power port is electrically disconnected. If no electrical connection is made for a long time, it means that the trailer and the tractor are no longer electrically connected through the trailer power port. At this time, in order to protect the trailer power port, the trailer power port cover needs to be controlled to close automatically.

[0105] When the power port connection information of the trailer power port changes from an electrical connection state to a no electrical connection state, it is determined that the trailer power port is electrically disconnected.

[0106] When the cover status information of the trailer power port cover is in the cover open state and the trailer power port is electrically disconnected, the duration of time that the trailer power port remains without electrical connection after the trailer power port is electrically disconnected is taken as the disconnection duration of the trailer power port. During the disconnection duration of the trailer power port, the power port connection information of the trailer power port is always in the state of not being electrically connected. The disconnection duration of the trailer power port is counted.

[0107] According to the statistically obtained disconnection duration of the trailer power port, the disconnection duration of the trailer power port is compared with the second preset duration. When the disconnection duration of the trailer power port is greater than the second preset duration, it is determined that the trailer power port cover meets the automatic closing condition. When the disconnection duration of the trailer power port is not greater than the second preset duration, it is determined that the trailer power port cover does not meet the automatic closing condition.

[0108] In an optional example, when the power port connection information of the trailer power port changes from an electrically connected state to an electrically disconnected state, a 30-second timing is performed. When the 30-second timing time is up, the power port connection information of the trailer power port is still in an electrically disconnected state. At this time, it is determined that the trailer power port cover meets the automatic closing conditions, and the trailer power port cover is controlled to perform the closing action. If the power port connection information of the trailer power port changes from an electrically disconnected state to an electrically connected state within 30 seconds, the 30-second timing is stopped and reset.

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

[0110] In a possible implementation, the method further includes:

[0111] Obtaining the resistance value of the trailer power access cover during the process of opening or closing the cover;

[0112] When the resistance value is greater than a preset threshold, the trailer power access port cover is controlled to perform a reverse action until the cover status information of the trailer power access port cover is a cover open state or a cover closed state.

[0113] Specifically, the trailer power access port cover is also provided with an anti-pinch function. The resistance value of the trailer power access port cover during the opening action or the closing action of the port cover is obtained through a sensor or other equipment. When the resistance value is greater than a preset threshold, the anti-pinch function is triggered, and the control system of the trailer power access port cover controls the trailer power access port cover to perform a reverse action.

[0114] When the trailer power port cover is performing the cover opening action, when the resistance value during the cover opening action is greater than the preset threshold, the control system of the trailer power port cover controls the trailer power port cover to perform the cover closing action until the cover status information of the trailer power port cover is the cover open state.

[0115] When the trailer power port cover is executing the cover closing action, when the resistance value during the cover closing action is greater than a preset threshold, the control system of the trailer power port cover controls the trailer power port cover to execute the cover opening action until the cover status information of the trailer power port cover is the cover closed state.

[0116] In a possible implementation, the method further includes:

[0117] When receiving a trailer power access port cover opening control instruction, in response to the trailer power access port cover opening control instruction, the trailer power access port cover is controlled to perform a cover opening action;

[0118] When a trailer power access port cover closing control instruction is received, in response to the trailer power access port cover opening control instruction, the trailer power access port cover is controlled to execute a cover closing action.

[0119] Specifically, a control switch for the trailer power access cover is provided on the tractor, so that the user can freely control the opening and closing of the trailer power access cover through the control switch of the trailer power access cover. Figure 3 As shown, the control switch of the trailer power access cover is manually triggered to control the control system of the trailer power access cover. The control system of the trailer power access cover can also provide a prompt of the cover status information.

[0120] When the user triggers the trailer power port cover opening control command through the switch, the control system of the trailer power port cover, upon receiving the trailer power port cover opening control command, responds to the trailer power port cover opening control command and controls the trailer power port cover to perform the cover opening action.

[0121] When the user triggers the trailer power port cover closing control command through the switch, the control system of the trailer power port cover, upon receiving the trailer power port cover closing control command, responds to the trailer power port cover closing control command and controls the trailer power port cover to execute the cover closing action.

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

[0123] Specifically, a displayable interface or a human-computer interaction interface of the control system of the trailer power port cover may also be set to implement the setting of the soft switch. The triggering operation of the trailer power port cover control switch is implemented through the human-computer interaction interface. When the user clicks the trailer power port cover control switch of the human-computer interaction interface, the control system of the trailer power port cover is controlled through the human-computer interaction interface. When the human-computer interaction interface receives the cover status information of the control system of the trailer power port cover as the cover is open, the state of the soft switch is switched to on, which is consistent with the cover status of the control system of the trailer power port cover. When the human-computer interaction interface receives the cover status information of the control system of the trailer power port cover as the cover is closed, the state of the soft switch is switched to off.

[0124] It can be understood that the technical solution provided in this embodiment determines whether the trailer power port cover meets the automatic opening condition or the automatic closing condition by obtaining the trailer hook status information of the trailer hook, the power port connection information of the trailer power port, the speed information of the tractor and the cover status information of the trailer power port, and according to at least one of the obtained trailer hook status information, the power port connection information, the speed information and the cover status information. Since the trailer hook is arranged on the tractor, the trailer power port is arranged on the trailer hook, and the trailer power port cover is arranged outside the trailer power port, when it is determined that the trailer power port cover meets the automatic opening condition, the trailer power port cover is controlled to execute the opening. The cover opening action completes the automatic opening of the trailer power access port cover. When it is determined that the trailer power access port cover meets the automatic closing conditions, the trailer power access port cover is controlled to execute the cover closing action to complete the automatic closing of the trailer power access port cover. No manual operation is required by the user during the cover opening action and the cover closing action. The opening and closing of the trailer power access port cover can be automatically controlled, so that the user does not need to manually open or close the trailer power access port cover when performing the electrical connection operation between the tractor and the trailer, thereby solving the problem of time-consuming, labor-intensive and inconvenient operation caused by the user having to manually open or close the trailer power access port cover when performing the electrical connection operation between the tractor and the trailer.

[0125] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean 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 the present application.

[0126] Corresponding to the method described in the above embodiment, Figure 4 A schematic structural diagram of a control device for a trailer power access cover provided in an embodiment of the present application is shown. For ease of explanation, only the portion related to the embodiment of the present application is shown.

[0127] Reference Figure 4 The control device 4 of the trailer power port cover includes: an information acquisition module 41, which is used to acquire trailer hook state information of the trailer hook, power port connection information of the trailer power port, vehicle speed information of the tractor, and cover state information of the trailer power port cover, wherein the trailer hook is arranged on the tractor, the trailer power port is arranged on the trailer hook, and the trailer power port cover is arranged outside the trailer power port;

[0128] A condition judgment module 42, used to determine whether the trailer power port cover meets the automatic opening condition or the automatic closing condition according to at least one of the trailer hook state information, the power port connection information, the vehicle speed information and the cover state information;

[0129] The cover control module 43 is used to control the trailer power access cover to execute the cover opening action when it is determined that the trailer power access cover meets the automatic opening conditions, or to control the trailer power access cover to execute the cover closing action when it is determined that the trailer power access cover meets the automatic closing conditions.

[0130] In a possible implementation, the condition determination module 42 includes:

[0131] The opening judgment unit 421 is used to determine that the trailer power port cover meets the automatic opening condition when the trailer hook state information of the trailer hook is the trailer hook deployed state;

[0132] The closing judgment unit 422 is used to determine that the trailer power port cover meets the automatic closing condition when the trailer hook state information of the trailer hook is the trailer hook retracted state.

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

[0134] In a possible implementation, when determining whether the trailer power port cover meets the automatic closing condition according to at least one of the power port connection information and the vehicle speed information, the closing judgment unit 422 is specifically used to count the duration of disconnection of the trailer power port, wherein the duration of disconnection indicates the duration of the trailer power port remaining without electrical connection after the trailer power port cover is opened;

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

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

[0137] When the speed of the tractor is greater than a first preset speed, it is determined that the trailer power access port cover meets the automatic closing condition.

[0138] In a 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 the vehicle speed information, the closing judgment unit 422 is further used to determine that the trailer power port is electrically disconnected when the power port connection information of the trailer power port changes from an electrical connection state to a no electrical connection state;

[0139] When the cover status information is in the cover open state, the disconnection duration of the trailer power port is counted, wherein the disconnection duration of the trailer power port indicates the duration of time that the trailer power port remains without electrical connection after the trailer power port is electrically disconnected;

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

[0141] In a 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 port cover during the process of performing the cover opening action or the cover closing action; when the resistance value is greater than the preset threshold, the trailer power port cover is controlled to perform a reverse action until the cover status information of the trailer power port cover is the cover open state or the cover closed state.

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

[0144] The switch response module 45 is used for controlling the trailer power access port cover to perform a cover opening action in response to the trailer power access port cover opening control command when receiving the trailer power access port cover opening control command;

[0145] When a trailer power access port cover closing control instruction is received, in response to the trailer power access port cover opening control instruction, the trailer power access port cover is controlled to execute a cover closing action.

[0146] It should be noted that the information interaction, execution process, etc. between the above-mentioned devices / units are based on the same concept as the method embodiment of the present application. Their specific functions and technical effects can be found in the method embodiment part and will not be repeated here.

[0147] The technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by 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 embodiment can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0148] An embodiment of the present application also provides a control device for a trailer power access port cover, the control device comprising: at least one processor, a memory, and a computer program stored in the memory and executable on the at least one processor, wherein the processor implements the steps in any of the above-mentioned method embodiments when executing the computer program.

[0149] An embodiment of the present application also provides a tractor, including a trailer hook, a trailer power port and a trailer power port cover, and a control device for the trailer power port cover for implementing any of the above methods.

[0150] An embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in the above-mentioned method embodiments can be implemented.

[0151] An embodiment of the present application provides a computer program product. When the computer program product runs on a mobile terminal, the mobile terminal can implement the steps in the above-mentioned method embodiments when executing the computer program product.

[0152] If the integrated unit is implemented in the form of 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, the present application implements all or part of the processes in the above-mentioned embodiment method, which can be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium can at least include: any entity or device that can carry the computer program code to the camera / terminal device, recording medium, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, RandomAccess Memory), electric carrier signal, telecommunication signal and software distribution medium. For example, a USB flash drive, a mobile hard disk, a magnetic disk or an optical disk. In some jurisdictions, according to legislation and patent practice, computer-readable media cannot be electric carrier signals and telecommunication signals.

[0153] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0154] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example 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 performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0155] In the embodiments provided in the present application, it should be understood that the disclosed devices / network equipment and methods can be implemented in other ways. For example, the device / network equipment embodiments described above are merely schematic. For example, the division of the modules or units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

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

[0157] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A method for controlling a trailer power access cover, characterized in that: include: Acquire trailer hook status information of the trailer hook, power port connection information of the trailer power port, vehicle speed information of the tractor, and cover status information of the trailer power port cover, wherein the trailer hook is arranged on the tractor, the trailer power port is arranged on the trailer hook, and the trailer power port cover is arranged outside the trailer power port; Determining whether the trailer power port cover meets an automatic opening condition or an automatic closing condition according to at least one of the trailer hook state information, the power port connection information, the vehicle speed information, and the cover state information; When it is determined that the trailer power access port cover meets the automatic opening condition, the trailer power access port cover is controlled to perform the cover opening action; or, when it is determined that the trailer power access port cover meets the automatic closing condition, the trailer power access port cover is controlled to perform the cover closing action.

2. The method for controlling the trailer power access cover according to claim 1, characterized in that: The determining whether the trailer power port cover meets the automatic opening condition or the automatic closing condition according to at least one of the trailer hook state information, the power port connection information, the vehicle speed information and the cover state information comprises: When the trailer hook state information of the trailer hook is in the trailer hook deployed state, determining that the trailer power access port cover meets the automatic opening condition; When the trailer hook state information of the trailer hook is a trailer hook retracted state, it is determined that the trailer power port cover meets an automatic closing condition.

3. The control method of the trailer power access cover according to claim 1, characterized in that: The determining whether the trailer power port cover meets the automatic opening condition or the automatic closing condition according to at least one of the trailer hook state information, the power port connection information, the vehicle speed information and the cover state information further includes: When the cover state information indicates that the cover is in an open state, it is determined whether the trailer power port cover meets an automatic closing condition according to at least one of the power port connection information and the vehicle speed information.

4. The method for controlling the trailer power access cover according to claim 3, characterized in that: The determining, based on at least one of the power port connection information and the vehicle speed information, whether the trailer power port cover meets the automatic closing condition includes: Counting the duration of disconnection of the trailer power port, wherein the duration of disconnection indicates the duration of time that the trailer power port remains without electrical connection after the trailer power port cover is opened; Determine whether the disconnected duration of the trailer power port is greater than a first preset duration. When the disconnected duration of the trailer power port is greater than the first preset duration, determine that the trailer power port cover meets the automatic closing condition.

5. The method for controlling the trailer power access cover according to claim 3, characterized in that: The determining, based on at least one of the power port connection information and the vehicle speed information, whether the trailer power port cover meets the automatic closing condition further includes: When the power port connection information indicates that there is no electrical connection, determining whether the speed of the tractor is greater than a first preset speed according to the vehicle speed information; When the speed of the tractor is greater than the first preset speed, it is determined that the trailer power port cover meets the automatic closing condition.

6. The method for controlling the trailer power access cover according to claim 3, characterized in that: The determining, based on at least one of the power port connection information and the vehicle speed information, whether the trailer power port cover meets the automatic closing condition further includes: When the power port connection information of the trailer power port changes from an electrically connected state to a non-electrically connected state, it is determined that the trailer power port is electrically disconnected; When the cover status information is in the cover open state, the disconnection duration of the trailer power port is counted, wherein the disconnection duration of the trailer power port indicates the duration of time that the trailer power port remains without electrical connection after the trailer power port is electrically disconnected; Determine whether the disconnection duration of the trailer power port is greater than a second preset duration. When the disconnection duration of the trailer power port is greater than the second preset duration, determine that the trailer power port cover meets the automatic closing condition.

7. The method for controlling the trailer power access cover according to claim 1, characterized in that: The method further comprises: Obtaining a resistance value of the trailer power access cover when the cover is opening or closing; When the resistance value is greater than a preset threshold, the trailer power access port cover is controlled to perform a reverse action until the cover state information of the trailer power access port cover is a cover open state or a cover closed state.

8. The method for controlling the trailer power access cover according to any one of claims 1 to 7, characterized in that: The method further comprises: When receiving a trailer power access port cover opening control instruction, in response to the trailer power access port cover opening control instruction, controlling the trailer power access port cover to perform a cover opening action; When a trailer power access port cover closing control instruction is received, in response to the trailer power access port cover opening control instruction, the trailer power access port cover is controlled to perform a cover closing action.

9. A control device for a trailer power access cover, characterized in that: include: an information acquisition module, used to acquire trailer hook status information of the trailer hook, power port connection information of the trailer power port, vehicle speed information of the tractor, and cover status information of the trailer power port cover, wherein the trailer hook is arranged on the tractor, the trailer power port is arranged on the trailer hook, and the trailer power port cover is arranged outside the trailer power port; A condition judgment module, used to determine whether the trailer power port cover meets the automatic opening condition or the automatic closing condition according to at least one of the trailer hook state information, the power port connection information, the vehicle speed information and the cover state information; The cover control module is used to control the trailer power access cover to perform a cover opening action when it is determined that the trailer power access cover meets the automatic opening conditions, or to control the trailer power access cover to perform a cover closing action when it is determined that the trailer power access cover meets the automatic closing conditions.

10. A tractor, characterized in that: It includes a trailer hook, a trailer power access port and a trailer power access port cover, as well as a control device for the trailer power access port cover for implementing any one of the methods described in 1 to 8.

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