Automobile tailgate parameter calibration method, device, tailgate control method, medium and equipment

Abstract

The present application discloses a method for calibrating parameters of a car tailgate, comprising: triggering an electric tailgate to perform a first action; when the motion state is abnormal, controlling the first Hall count change rate to be less than or equal to the second Hall count change rate; obtaining a first time and a second time, the first time being the anti-pinch trigger detection time, and the second time being the duration during which the first Hall count change rate is less than or equal to the second Hall count change rate; controlling the second time to be greater than the first time, triggering an anti-pinch operation, and causing the electric tailgate to perform a second action, thereby completing the calibration of the electric tailgate parameters. The present application calibrates the electric tailgate parameters by combining the Hall count change rate, the anti-pinch trigger detection time, and the duration during which the first Hall count change rate is less than the second Hall count change rate, thereby achieving adaptive calibration and directly applying the parameters to the vehicle tailgate in real time, greatly reducing safety hazards and protecting the health and life safety of personnel.

Description

Technical Field

[0001] The present application relates to the technical field of automobile tailgate parameter calibration, and in particular to an automobile tailgate parameter calibration method, device, tailgate control method, medium and equipment. Background Art

[0002] Tailgate calibration involves adjusting and calibrating various parameters of a vehicle's electric tailgate to ensure optimal performance. This process is typically performed by professional technicians, who adjust and optimize the full travel of the electric tailgate based on the vehicle's door weight, styling, and the performance of the electric struts. Tailgate calibration improves the customer experience, ensuring passenger comfort and safety, while also increasing vehicle range and contributing to environmental friendliness. Tailgate calibration is crucial for ensuring stable, safe, and reliable performance during normal vehicle use.

[0003] However, current vehicle tailgate calibration relies on engineers entering a thermostat and using specialized instruments. The constant high and low temperature environments can be harmful to the calibrators. Furthermore, the cost of the calibration chamber and the resources required for calibration, such as the latest vehicles and specialized calibration equipment (CANape, Lauderbach, etc.), are high. Furthermore, exposure to high and low temperatures can accelerate damage to vehicles and equipment. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide a method, device, tailgate parameter calibration method, medium and equipment for automobile tailgate control, so as to solve at least one problem existing in the prior art.

[0005] To achieve the above-mentioned and other related purposes, the present application provides a method for calibrating parameters of an electric tailgate of an automobile, the method comprising:

[0006] Trigger the electric tailgate to perform the first action;

[0007] determining a motion state of the electric tailgate during the execution of the first action, wherein the motion state includes a normal state and an abnormal state;

[0008] When the motion state is abnormal, obtaining a first Hall count change rate and a second Hall count change rate, and controlling the first Hall count change rate to be less than or equal to the second Hall count change rate; wherein the second Hall count change rate is a Hall count change rate that triggers anti-pinch;

[0009] Acquire a first time and a second time, and control the second time to be greater than the first time, trigger an anti-pinch operation, and cause the electric tailgate to perform a second action to complete the calibration of the electric tailgate parameters; wherein, the first time is the anti-pinch trigger detection time, and the second time is the duration during which the first Hall count change rate is less than or equal to the second Hall count change rate; the first action represents an action in a first direction, and the second action represents an action in a second direction, and the first direction and the second direction are opposite directions to each other.

[0010] In one embodiment of the present invention, the first action is opening, and the second action is closing; or the first action is closing, and the second action is opening.

[0011] In one embodiment of the present invention, after the anti-pinch operation is triggered, the electric tailgate moves in the second direction at a set time and a first set stroke.

[0012] In one embodiment of the present invention, the method further includes:

[0013] comparing a preset second set stroke with the first set stroke;

[0014] When the first set stroke is greater than or less than the second set stroke, the first set stroke is adjusted so that the first set stroke is equal to the second set stroke, thereby completing the calibration of the electric tailgate parameters.

[0015] In one embodiment of the present invention, when the motion state is normal, the method further includes:

[0016] Obtaining a third time, where the third time is the time from the start of the first action to the completion of the first action of the last electric tailgate;

[0017] Comparing the third time with a preset fourth time, and determining a degree of matching between the third time and the fourth time;

[0018] When the degree of matching between the third time and the fourth time is greater than or equal to the set degree of matching, the speed of each movement area during the full-stroke movement is obtained, and the speed of each movement area is used as the control parameter of the electric tailgate to complete the calibration of the electric tailgate; wherein, the full stroke refers to the movement area of ​​the electric tailgate between the minimum opening and the maximum opening; the movement area includes a slow-rise area, a slow-fall area and a uniform speed area; the slow-rise area refers to the area from the first opening to the maximum opening during the opening action of the electric tailgate, and the position indicated by the first opening is close to the position indicated by the maximum opening; the slow-fall area refers to the area from the second opening to the minimum opening during the closing action of the electric tailgate, and the position indicated by the second opening is close to the position indicated by the minimum opening; the uniform speed area refers to the area outside the slow-rise area and the slow-fall area;

[0019] When the degree of matching between the third time and the fourth time is less than the set degree of matching, the average speed of each movement area during the full-stroke movement is obtained, and the speed of each movement area is compensated with the average speed to obtain a compensated speed, so that the degree of matching between the third time and the fourth time is greater than or equal to the set degree of matching, thereby completing the calibration of the electric tailgate parameters.

[0020] In one embodiment of the present invention, the method further includes:

[0021] Get ambient temperature parameters;

[0022] The first time is determined based on the ambient temperature parameter and a pre-established temperature-time association relationship.

[0023] To achieve the above-mentioned purpose and other related purposes, the present application provides a method for controlling a car tailgate, which comprises: controlling an electric tailgate using the car tailgate parameters obtained by the car tailgate parameter calibration method.

[0024] To achieve the above-mentioned and other related purposes, the present application provides a vehicle tailgate parameter calibration device, the device comprising:

[0025] A trigger module, used for triggering the electric tailgate to perform a first action;

[0026] a judging module, configured to judge a motion state of the electric tailgate during the execution of the first action, wherein the motion state includes a normal state and an abnormal state;

[0027] a first control module, configured to obtain a first Hall count change rate and a second Hall count change rate when the motion state is abnormal, and control the first Hall count change rate to be less than or equal to the second Hall count change rate; wherein the second Hall count change rate is a Hall count change rate that triggers anti-pinch;

[0028] The second control module is used to obtain the first time and the second time, and control the second time to be greater than the first time, triggering the anti-pinch operation, so that the electric tailgate performs a second action to complete the calibration of the electric tailgate parameters; wherein, the first time is the anti-pinch trigger detection time, and the second time is the duration when the first Hall count change rate is less than or equal to the second Hall count change rate; the first action represents an action in a first direction, and the second action represents an action in a second direction, and the first direction and the second direction are opposite directions to each other.

[0029] To achieve the above-mentioned and other related purposes, the present application provides a vehicle tailgate parameter calibration device, comprising:

[0030] one or more processors; and

[0031] One or more machine-readable media having instructions stored thereon, which, when executed by the one or more processors, cause the processors to perform one or more of the described methods.

[0032] To achieve the above objectives and other related objectives, the present application provides one or more machine-readable media having instructions stored thereon, which, when executed by one or more processors, enable the processors to perform one or more of the methods described above.

[0033] As described above, the present application provides a method, device, tailgate parameter calibration method, medium, and equipment for automobile tailgate, which have the following beneficial effects:

[0034] The present application provides a method for calibrating parameters of a car tailgate, comprising: triggering an electric tailgate to perform a first action; determining a motion state of the electric tailgate during the execution of the first action, wherein the motion state includes a normal state and an abnormal state; when the motion state is abnormal, obtaining a first Hall count change rate and a second Hall count change rate, wherein the second Hall count change rate is a Hall count change rate for triggering anti-pinch; controlling the first Hall count change rate to be less than or equal to the second Hall count change rate; obtaining a first time and a second time, wherein the first time is an anti-pinch trigger detection time, and the second time is a duration during which the first Hall count change rate is less than or equal to the second Hall count change rate; controlling the second time to be greater than the first time, triggering an anti-pinch operation, and causing the electric tailgate to perform a second action, so as to complete the calibration of the electric tailgate parameters; wherein the first action represents an action in a first direction, and the second action represents an action in a second direction, and the first direction and the second direction are opposite directions to each other. The present application calibrates the electric tailgate parameters by combining the Hall count change rate, the anti-pinch trigger detection time, and the duration during which the first Hall count change rate is less than the second Hall count change rate. This can achieve adaptive calibration and directly apply the parameters to the vehicle tailgate in real time, greatly reducing safety hazards and ensuring the health and life safety of personnel. At the same time, through this calibration method of the present application, the work efficiency of tailgate calibration can be greatly improved, R&D time can be saved, and the R&D cycle of existing car companies' products can be accelerated.

[0035] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments of the present application. 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 any creative work.

[0037] Figure 1 This is a flowchart of an exemplary method for calibrating automobile tailgate parameters of the present application;

[0038] Figure 2 This is a flowchart of another exemplary method for calibrating automobile tailgate parameters of the present application;

[0039] Figure 3 An exemplary functional relationship between the anti-pinch trigger detection time T1 and the ambient temperature of the present application is shown in FIG.

[0040] Figure 4 This is a block diagram of an exemplary vehicle tailgate parameter calibration device of the present application;

[0041] Figure 5 A schematic diagram of the structure of a computer system suitable for implementing the memory of an embodiment of the present application is shown. DETAILED DESCRIPTION

[0042] The following will describe the embodiments of the present application with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand the other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be understood that the preferred embodiments are only for the purpose of illustrating the present application and are not intended to limit the scope of protection of the present application.

[0043] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. Therefore, the illustrations only show components related to the present application and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0044] In the following description, a large number of details are discussed to provide a more thorough explanation of the embodiments of the present application. However, it is obvious to those skilled in the art that the embodiments of the present application can be implemented without these specific details. In other embodiments, well-known structures and devices are shown in the form of block diagrams rather than in detail to avoid making the embodiments of the present application difficult to understand.

[0045] See also Figure 1 , Figure 1 This is a flow chart of a method for calibrating parameters of a car tailgate according to an embodiment of the present application. Figure 1 In the method for calibrating the parameters of the automobile tailgate, the method includes at least steps S110 to S140, which are described in detail as follows:

[0046] Step S110, triggering the electric tailgate to perform a first action;

[0047] Specifically, the electric tailgate can be triggered to perform a first action using a remote control external to the vehicle or a tailgate control button internal to the vehicle. It should be noted that the first action can be either the opening or closing of the electric tailgate. When the electric tailgate is opened, it moves from bottom to top, from its minimum opening to its maximum opening. When the electric tailgate is closed, it moves from top to bottom, from its maximum opening to its minimum opening.

[0048] Step S120, determining the motion state of the electric tailgate during the first action, wherein the motion state includes a normal state and an abnormal state;

[0049] Specifically, a normal state indicates that during the first action of the electric tailgate, there are no obstacles in the movement area, and the electric tailgate opens or closes normally. An abnormal state indicates that during the first action of the electric tailgate, an obstacle appears in the movement area, preventing the normal execution of the first action, and the electric tailgate cannot successfully complete the first action. Different movement states require different handling methods. Therefore, the movement state of the electric tailgate must first be determined, that is, whether there is an obstacle in the movement area. If there is an obstacle, it indicates that the electric tailgate is in an abnormal state; if not, it indicates that the electric tailgate is in a normal state.

[0050] Step S130, when the motion state is abnormal, obtaining a first Hall count change rate and a second Hall count change rate, and controlling the first Hall count change rate to be less than or equal to the second Hall count change rate; wherein the second Hall count change rate is a Hall count change rate that triggers anti-pinch;

[0051] The electric tailgate of a car generally uses a control device including a Hall sensor to control the rotation accuracy. Therefore, the Hall sensor can determine the position, status and other information of the electric tailgate.

[0052] Calibration mainly refers to the use of standard values ​​to detect whether the accuracy (precision) of the device used meets the standards. Calibration can also be considered as calibration. The calibration of the Hall count change rate is to use the pre-set Hall count change rate - that is, the second Hall count change rate to calibrate the detected Hall count change rate - that is, the first Hall count change rate. This application is to calibrate the parameters of the electric tailgate to ensure that the anti-pinch function of the electric tailgate can be triggered normally. The triggering of the anti-pinch function indicates that an obstacle has appeared in the motion area. The obstacles include but are not limited to tree branches, human bodies, etc. After the obstacle appears, the motor rotation speed decreases or the number of rotations decreases, then the Hall count change rate decreases, and the anti-pinch operation is triggered. Therefore, before calibration, a Hall count change rate - the second Hall count change rate is pre-set. This change rate is the Hall count change rate when anti-pinch is triggered. When the first Hall count change rate is less than or equal to the second Hall count change rate, the anti-pinch operation is triggered. Therefore, during calibration, the first Hall count change rate is controlled to be less than or equal to the second Hall count change rate, that is, when the first Hall count change rate is greater than the second Hall count change rate, the first Hall count change rate can be reduced; when the first Hall count change rate is less than or equal to the second Hall count change rate, the first Hall count change rate is kept unchanged or the second Hall count change rate is assigned to the first Hall count change rate to complete the calibration of the Hall count change rate.

[0053] Step S140, obtaining a first time and a second time, and controlling the second time to be greater than the first time, triggering an anti-pinch operation, causing the electric tailgate to perform a second action to complete the calibration of the electric tailgate parameters; wherein, the first time is the anti-pinch trigger detection time, and the second time is the duration during which the first Hall count change rate is less than or equal to the second Hall count change rate; the first action represents an action in a first direction, and the second action represents an action in a second direction, and the first direction and the second direction are opposite directions to each other.

[0054] It should be noted that, when the first action is on, the second action is off; or when the first action is off, the second action is on.

[0055] Specifically, the electric tailgate can be triggered to perform the second action using a remote control outside the vehicle or a tailgate control button inside the vehicle. It should be noted that the first action can be either the opening or closing action of the electric tailgate. If the first action is the opening action of the electric tailgate, the second action is the closing action of the electric tailgate; if the first action is the closing action of the electric tailgate, the second action is the opening action of the electric tailgate. It should be noted that when the electric tailgate performs the opening action, it moves from bottom to top, and the opening degree of the electric tailgate increases from the minimum opening to the maximum opening; when the electric tailgate performs the closing action, it moves from top to bottom, and the opening degree of the electric tailgate decreases from the maximum opening to the minimum opening.

[0056] When an obstacle appears in the movement area, an anti-pinch operation is triggered. However, if the anti-pinch operation is falsely triggered, it can cause a malfunction in the electric tailgate control. Therefore, to address this issue, a control parameter is added to the electric tailgate control. Here, the anti-pinch trigger detection time and the anti-pinch trigger duration are acquired: a first time and a second time. The anti-pinch trigger duration is defined as the duration during which the first Hall effect count rate of change is less than or equal to the second Hall effect count rate of change. When the second time is greater than the first time—that is, the duration during which the first Hall effect count rate of change is less than or equal to the second Hall effect count rate of change exceeds the anti-pinch trigger detection time—the anti-pinch operation is triggered, controlling the electric tailgate to perform a second action in the opposite direction of the first action, thereby preventing false triggering. During calibration, the second time is used to calibrate the first time. Specifically, the second time is set to be greater than the first time. If the first time is greater than the second time, the first time is reduced. If the first time is less than or equal to the second time, the first time is maintained unchanged or the second time is assigned to the first time, completing the calibration.

[0057] In one embodiment, after the anti-pinch operation is triggered, the electric tailgate moves in the second direction within a set time and a first set stroke.

[0058] Specifically, when the anti-pinch operation is triggered, the electric tailgate immediately moves in the opposite direction. During this movement, a time and a distance are pre-set, namely, the set time and the first set distance, to complete the anti-pinch reversal. Specifically, when the electric tailgate performs the first downward movement (closing), the anti-pinch operation is triggered and the electric tailgate immediately performs the second upward movement (opening). When the electric tailgate performs the first upward movement (opening), the anti-pinch operation is triggered and the electric tailgate immediately performs the second downward movement (closing).

[0059] In one embodiment, the method further comprises:

[0060] comparing a preset second set stroke with the first set stroke;

[0061] When the first set stroke is greater than or less than the second set stroke, the first set stroke is adjusted so that the first set stroke is equal to the second set stroke, thereby completing the calibration of the electric tailgate parameters.

[0062] It should be noted that the first set stroke is the anti-pinch reversal stroke detected in real time. When the anti-pinch operation is triggered, the electric tailgate will reverse to prevent the tailgate from causing harm to the user. The anti-pinch reversal stroke varies from manufacturer to manufacturer, so it is necessary to calibrate the anti-pinch reversal stroke required by the specification (i.e., the first set stroke). The specific calibration steps include:

[0063] When the first set stroke is smaller than the second set stroke or the first set stroke is larger than the second set stroke, that is, the first set stroke does not meet the specification requirements, the first set stroke is corrected so that the first set stroke is equal to the second set stroke, and then the anti-pinch reversal is performed.

[0064] When the first set stroke is equal to the second set stroke, the second set stroke is assigned to the first set stroke, and the anti-pinch reversal is executed according to the first set stroke.

[0065] See also Figure 2 , Figure 2 This is a method for calibrating parameters of a car tailgate according to an embodiment of the present application. In this method, when the motion state is normal, the method further includes:

[0066] Step S210, obtaining a third time, where the third time is the time from the start of the first action to the completion of the first action of the last electric tailgate;

[0067] Step S220, comparing the third time with a preset fourth time, and determining a matching degree between the third time and the fourth time;

[0068] Determining the degree of match between the third and fourth times refers to determining whether the previous full-stroke time meets the specification requirements. If the match is high, the previous full-stroke time is considered to meet the specification requirements; if the match is low, the previous full-stroke time is considered to not meet the specification requirements. If the match is low, speed adjustment is required; if the match is high, speed adjustment is not required.

[0069] Step S230, when the matching degree between the third time and the fourth time is greater than or equal to the set matching degree, obtain the speed of each movement area during the full-stroke movement, and use the speed of each movement area as the control parameter of the electric tailgate to complete the calibration of the electric tailgate; wherein, the full stroke refers to the movement area of ​​the electric tailgate between the minimum opening and the maximum opening; the movement area includes a slow-rise area, a slow-fall area and a uniform speed area; the slow-rise area refers to the area from the first opening to the maximum opening during the opening action of the electric tailgate, and the position indicated by the first opening is close to the position indicated by the maximum opening; the slow-fall area refers to the area from the second opening to the minimum opening during the closing action of the electric tailgate, and the position indicated by the second opening is close to the position indicated by the minimum opening; the uniform speed area refers to the area outside the slow-rise area and the slow-fall area;

[0070] When the last full-stroke movement time meets the full-stroke movement time requirements specified in the specification, the data of the average speeds of each segment during the last full-stroke movement: V1, V2, and V3 are stored in the EEPROM, and then the tailgate movement is triggered again, and the tailgate is controlled to move according to the stored speeds V1, V2, and V3 until the execution is completed; among them, V1 is the average speed in the slow-ascending area, V2 is the average speed in the slow-descending area, and V3 is the average speed in the uniform speed area.

[0071] In step S240, when the degree of matching between the third time and the fourth time is less than the set degree of matching, the average speed of each movement area during the full-stroke movement is obtained, and the speed of each movement area is compensated with the average speed to obtain a compensated speed, so that the degree of matching between the third time and the fourth time is greater than or equal to the set degree of matching, thereby completing the calibration of the electric tailgate parameters.

[0072] If the last full-stroke movement time does not meet the full-stroke movement time requirements specified in the specification, then calculate the full-stroke average speed V=S / T4 that meets the specification requirements, where S represents the full stroke and T4 represents the full-stroke movement time specified in the specification. The average speed V1 in the rising area, the average speed V2 in the falling area, and the average speed V3 in the uniform speed area are increased by V / V4 and stored in the EEPROM. Then, the tailgate movement is triggered again, and the movement is executed according to the V1, V2, and V3 currently stored in the EEPROM until the execution is completed.

[0073] In one embodiment, the method further includes: acquiring an ambient temperature parameter; and determining the first time based on the ambient temperature parameter and a pre-established temperature-time correlation relationship.

[0074] The anti-pinch trigger detection time T1 affects the size of the anti-pinch force F. When the ambient temperature is lower, the system structure resistance increases, and the anti-pinch force F will increase accordingly. When the anti-pinch force specification is met, the functional relationship between the anti-pinch trigger detection time T1 and the ambient temperature is as follows: Figure 3 As shown, it is only necessary to adjust the anti-pinch trigger detection time T1 to achieve consistent human perception of the anti-pinch force at various temperatures, thereby optimizing the user experience.

[0075] To sum up, the present application calibrates the electric tailgate parameters by combining the Hall count change rate, the anti-pinch trigger detection time, and the duration when the first Hall count change rate is less than the second Hall count change rate. It can achieve adaptive calibration and directly apply the parameters to the vehicle tailgate in real time, greatly reducing safety hazards and protecting the health and life safety of personnel. At the same time, through this calibration method of the present application, the work efficiency of tailgate calibration can be greatly improved, saving R&D time and accelerating the R&D cycle of existing car companies' products.

[0076] 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 this application.

[0077] The present application provides a method for controlling a car tailgate, the method comprising: Figure 1 The electric tailgate is controlled by the tailgate parameters obtained by the tailgate parameter calibration method.

[0078] Figure 4 FIG. 1 is a block diagram of a vehicle tailgate parameter calibration device shown in an exemplary embodiment of the present application. Figure 4 As shown, a vehicle tailgate parameter calibration device includes:

[0079] A trigger module 410 is used to trigger the electric tailgate to perform a first action;

[0080] A determination module 420 is configured to determine a motion state of the electric tailgate during the first action, wherein the motion state includes a normal state and an abnormal state;

[0081] A first control module 430 is configured to obtain a first Hall effect count change rate and a second Hall effect count change rate when the motion state is abnormal, and control the first Hall effect count change rate to be less than or equal to the second Hall effect count change rate; wherein the second Hall effect count change rate is a Hall effect count change rate that triggers anti-pinch;

[0082] The second control module 440 is used to obtain the first time and the second time, and control the second time to be greater than the first time, triggering the anti-pinch operation, so that the electric tailgate performs a second action to complete the calibration of the electric tailgate parameters; wherein, the first time is the anti-pinch trigger detection time, and the second time is the duration when the first Hall count change rate is less than or equal to the second Hall count change rate; the first action represents an action in a first direction, and the second action represents an action in a second direction, and the first direction and the second direction are opposite directions to each other.

[0083] It should be noted that the automobile tailgate parameter calibration device provided in the above embodiment and the automobile tailgate parameter calibration method provided in the above embodiment are based on the same concept, wherein the specific manner in which each module and unit performs the operation has been described in detail in the method embodiment and will not be repeated here. In actual application, the above embodiment provided can be allocated to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above, and this is not limited here.

[0084] An embodiment of the present application also provides a car tailgate parameter calibration device, comprising: one or more processors; a storage device for storing one or more programs, wherein when the one or more programs are executed by the one or more processors, the memory implements the car tailgate parameter calibration method provided in the above-mentioned embodiments.

[0085] Figure 5 FIG1 shows a schematic diagram of a computer system suitable for implementing a memory according to an embodiment of the present application. It should be noted that: Figure 5 The computer system of the memory shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0086] like Figure 5 As shown, the computer system includes a central processing unit (CPU), which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM) or the program loaded from the storage portion into the random access memory (RAM), such as executing the method described in the above embodiment. Various programs and data required for system operation are also stored in the RAM. The CPU, ROM, and RAM are connected to each other via a bus. The input / output (I / O) interface is also connected to the bus.

[0087] The following components are connected to the I / O interface: an input section including a keyboard, mouse, etc.; an output section including a cathode ray tube (CRT), liquid crystal display (LCD), and speakers; a storage section including a hard disk; and a communication section including a network interface card such as a LAN (Local Area Network) card and a modem. The communication section performs communication processing via a network such as the Internet. A drive is also connected to the I / O interface as needed. Removable media such as magnetic disks, optical disks, magneto-optical disks, semiconductor memories, etc. are installed in the drive as needed so that computer programs read from them can be installed in the storage section as needed.

[0088] In particular, according to an embodiment of the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present application includes a computer program product, which includes a computer program carried on a computer readable medium, the computer program including a computer program for executing the process. Figure 1 A computer program for the vehicle tailgate parameter calibration method is shown. In such an embodiment, the computer program can be downloaded and installed from a network via the communication component and / or installed from a removable medium. When the computer program is executed by the central processing unit (CPU), the various functions defined in the system of the present application are performed.

[0089] It should be noted that the computer-readable medium shown in the embodiments of the present application can be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium can be, for example, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media can include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, which carries a computer-readable computer program. This propagated data signal can take a variety of forms, including but not limited to an electromagnetic signal, an optical signal, or any suitable combination of the above. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium that can transmit, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. A computer program embodied on a computer-readable medium may be transmitted using any suitable medium, including but not limited to wireless, wired, or any suitable combination thereof.

[0090] The flowcharts and block diagrams in the accompanying drawings illustrate the possible implementation architecture, functions and operations of the systems, methods and computer program products according to various embodiments of the present application. Among them, each box in the flowchart or block diagram can represent a module, program segment, or part of the code, and the above-mentioned module, program segment, or part of the code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flowchart, and the combination of boxes in the block diagram or flowchart, can be implemented with a dedicated hardware-based system that performs the specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0091] The units involved in the embodiments described in this application may be implemented by software or hardware, and the units described may also be set in a processor. In some cases, the names of these units do not constitute limitations on the units themselves.

[0092] Another aspect of the present application provides a computer-readable storage medium storing a computer program. When executed by a computer processor, the computer program causes the computer to perform the aforementioned method for calibrating vehicle tailgate parameters in a cloud tourism scenario. The computer-readable storage medium may be included in the memory described in the above embodiments, or may exist independently and not be incorporated into the memory.

[0093] Another aspect of the present application provides a computer program product or computer program, which includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the vehicle tailgate parameter calibration method provided in each of the above embodiments.

[0094] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, any equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concepts disclosed in this application shall be covered by the claims of this application.

Claims

1. A method for calibrating parameters of an electric tailgate of an automobile, characterized in that: The method comprises: Trigger the electric tailgate to perform the first action; determining a motion state of the electric tailgate during the execution of the first action, wherein the motion state includes a normal state and an abnormal state; When the motion state is abnormal, obtaining a first Hall count change rate and a second Hall count change rate, and controlling the first Hall count change rate to be less than or equal to the second Hall count change rate; wherein the second Hall count change rate is a Hall count change rate that triggers anti-pinch; Acquire a first time and a second time, and control the second time to be greater than the first time, trigger an anti-pinch operation, and cause the electric tailgate to perform a second action to complete the calibration of the electric tailgate parameters; wherein, the first time is the anti-pinch trigger detection time, and the second time is the duration during which the first Hall count change rate is less than or equal to the second Hall count change rate; the first action represents an action in a first direction, and the second action represents an action in a second direction, and the first direction and the second direction are opposite directions to each other.

2. The method for calibrating parameters of an electric tailgate according to claim 1, characterized in that: The first action is opening, and the second action is closing; or the first action is closing, and the second action is opening.

3. The method for calibrating parameters of an electric tailgate according to claim 1 or 2, characterized in that: After the anti-pinch operation is triggered, the electric tailgate moves in the second direction at a set time and a first set stroke.

4. The method for calibrating parameters of an electric tailgate according to claim 3, characterized in that: The method further comprises: comparing a preset second set stroke with the first set stroke; When the first set stroke is greater than or less than the second set stroke, the first set stroke is adjusted so that the first set stroke is equal to the second set stroke, thereby completing the calibration of the electric tailgate parameters.

5. The method for calibrating parameters of an electric tailgate of an automobile according to claim 1, characterized in that: When the motion state is normal, the method further includes: Obtaining a third time, where the third time is the time from the start of the first action to the completion of the first action of the last electric tailgate; Comparing the third time with a preset fourth time, and determining a degree of matching between the third time and the fourth time; When the degree of matching between the third time and the fourth time is greater than or equal to the set degree of matching, the speed of each movement area during the full-stroke movement is obtained, and the speed of each movement area is used as the control parameter of the electric tailgate to complete the calibration of the electric tailgate; wherein, the full stroke refers to the movement area of ​​the electric tailgate between the minimum opening and the maximum opening; the movement area includes a slow-rise area, a slow-fall area and a uniform speed area; the slow-rise area refers to the area from the first opening to the maximum opening during the opening action of the electric tailgate, and the position indicated by the first opening is close to the position indicated by the maximum opening; the slow-fall area refers to the area from the second opening to the minimum opening during the closing action of the electric tailgate, and the position indicated by the second opening is close to the position indicated by the minimum opening; the uniform speed area refers to the area outside the slow-rise area and the slow-fall area; When the degree of matching between the third time and the fourth time is less than the set degree of matching, the average speed of each movement area during the full-stroke movement is obtained, and the speed of each movement area is compensated with the average speed to obtain a compensated speed, so that the degree of matching between the third time and the fourth time is greater than or equal to the set degree of matching, thereby completing the calibration of the electric tailgate parameters.

6. The method for calibrating parameters of an electric tailgate of an automobile according to claim 1, characterized in that: The method further comprises: Get ambient temperature parameters; The first time is determined based on the ambient temperature parameter and a pre-established temperature-time association relationship.

7. A method for controlling a car tailgate, characterized in that: The method comprises: controlling the electric tailgate by using the automobile tailgate parameters obtained by the automobile electric tailgate parameter calibration method according to any one of claims 1 to 6.

8. A car tailgate parameter calibration device, characterized in that: The device comprises: A trigger module, used for triggering the electric tailgate to perform a first action; a judging module, configured to judge a motion state of the electric tailgate during the execution of the first action, wherein the motion state includes a normal state and an abnormal state; a first control module, configured to obtain a first Hall count change rate and a second Hall count change rate when the motion state is abnormal, and control the first Hall count change rate to be less than or equal to the second Hall count change rate; wherein the second Hall count change rate is a Hall count change rate that triggers anti-pinch; The second control module is used to obtain the first time and the second time, and control the second time to be greater than the first time, triggering the anti-pinch operation, so that the electric tailgate performs a second action to complete the calibration of the electric tailgate parameters; wherein, the first time is the anti-pinch trigger detection time, and the second time is the duration when the first Hall count change rate is less than or equal to the second Hall count change rate; the first action represents an action in a first direction, and the second action represents an action in a second direction, and the first direction and the second direction are opposite directions to each other.

9. A car tailgate parameter calibration device, characterized in that: include: one or more processors; and One or more machine-readable media having instructions stored thereon, when executed by the one or more processors, cause the processors to perform the method according to any one of claims 1 to 6.

10. A machine-readable medium, characterized in that Instructions are stored thereon, which, when executed by one or more processors, cause the processors to perform the method according to any one of claims 1 to 6.

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