Automobile electric tail gate control method and device

Abstract

The application discloses a control method and device for an electric tail door of a vehicle and relates to the technical field of vehicle tail doors. After receiving an opening instruction of the electric tail door, the control method and device obtain the locking state of the electric tail door. If the locking state of the electric tail door is a full-locking state, the electric tail door is unlocked, and the electric supporting rod of the electric tail door is controlled to hold the electric tail door after the electric tail door is unlocked. The electric tail door cannot be quickly bounced up, so that the impact noise generated when the electric tail door is opened in the full-locking state is reduced.

Description

Technical Field

[0001] This invention relates to the field of automobile tailgate technology, and more particularly to a method and device for controlling an electric automobile tailgate. Background Technology

[0002] When a car's power tailgate is fully locked, it is in close contact with the sealing structure due to the need for sealing, resulting in significant interaction forces between them. When opening the power tailgate from the fully locked position, the reaction force from the sealing structure at the moment of unlocking rapidly pushes the tailgate open, causing it to spring up quickly and generating considerable impact noise, thus degrading the user experience. Therefore, reducing the impact noise generated when opening a power tailgate from the fully locked position is a problem that needs to be solved in this field to improve the user experience. Summary of the Invention

[0003] This invention provides a method and device for controlling an electric tailgate, which solves the technical problem of how to reduce the impact noise generated when opening an electric tailgate in a fully locked state.

[0004] On the one hand, the present invention provides the following technical solution:

[0005] A method for controlling an electric tailgate for a car includes:

[0006] Upon receiving the command to open the electric tailgate, the locking status of the electric tailgate is obtained;

[0007] If the locking state is fully locked, then the electric tailgate is unlocked and the electric support rod of the electric tailgate is controlled to pull the electric tailgate after the electric tailgate is unlocked;

[0008] After the first preset time period, the electric support rod is controlled to push open the electric tailgate.

[0009] Preferably, if the locking state is a fully locked state, then after unlocking the electric tailgate and controlling the electric support rod of the electric tailgate to pull the electric tailgate after unlocking the electric tailgate and before controlling the electric support rod to push open the electric tailgate after the first preset time period, the method further includes:

[0010] After the second preset time period, the current applied to the motor of the electric support rod is stopped.

[0011] Preferably, the electric tailgate control method for automobiles also includes:

[0012] Upon receiving the closing command of the electric tailgate, the opening degree of the electric tailgate is obtained;

[0013] If the opening degree of the electric tailgate is lower than a preset opening degree threshold, the opening degree of the electric tailgate is increased to be above the opening degree threshold.

[0014] Reduce the opening of the electric tailgate to zero, and while the opening of the electric tailgate is decreasing from the opening threshold to zero, control the electric tailgate to accelerate to the calibrated speed.

[0015] Preferably, after receiving the opening command of the electric tailgate and obtaining the locking status of the electric tailgate, the method further includes:

[0016] If the locking state is a half-lock state, then the electric tailgate is unlocked and the electric support rod is controlled to push the electric tailgate open.

[0017] On the other hand, the present invention also provides the following technical solution:

[0018] An electric tailgate control device for automobiles, comprising:

[0019] The acquisition module is used to acquire the locking status of the electric tailgate after receiving the opening command of the electric tailgate;

[0020] The control module is used to unlock the electric tailgate and control the electric support rod of the electric tailgate to pull the electric tailgate after the electric tailgate is unlocked if the locking state is a fully locked state.

[0021] The control module is also used to control the electric support rod to push open the electric tailgate after a first preset time.

[0022] Preferably, the control module is further configured to:

[0023] After the second preset time period, the current applied to the motor of the electric support rod is stopped.

[0024] Preferably, the acquisition module is further configured to acquire the opening degree of the electric tailgate after receiving the closing command of the electric tailgate;

[0025] The control module is also used to increase the opening degree of the electric tailgate to above the preset opening degree threshold if the opening degree of the electric tailgate is lower than the preset opening degree threshold.

[0026] The control module is also used to reduce the opening degree of the electric tailgate to zero, and control the electric tailgate to accelerate to a calibrated speed during the process of the opening degree of the electric tailgate decreasing from the opening degree threshold to zero.

[0027] Preferably, the control module is further configured to:

[0028] If the locking state is a half-lock state, then the electric tailgate is unlocked and the electric support rod is controlled to push the electric tailgate open.

[0029] On the other hand, the present invention also provides the following technical solution:

[0030] An electronic device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement any of the above-described methods for controlling an electric tailgate for automobiles.

[0031] On the other hand, the present invention also provides the following technical solution:

[0032] A computer-readable storage medium storing a computer program that, when executed by a processor, implements any of the above-described automotive electric tailgate control methods.

[0033] One or more technical solutions provided by this invention have at least the following technical effects or advantages:

[0034] After receiving the opening command of the electric tailgate, the present invention obtains the locking status of the electric tailgate. If the locking status of the electric tailgate is fully locked, the electric tailgate is unlocked and the electric support rod of the electric tailgate is controlled to pull the electric tailgate after the electric tailgate is unlocked, so that the electric tailgate will not pop up quickly, thereby reducing the impact noise generated when the electric tailgate is opened in the fully locked state. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a flowchart of the electric tailgate control method for automobiles in an embodiment of the present invention;

[0037] Figure 2 This is a schematic diagram of the electric tailgate control device for automobiles in an embodiment of the present invention. Detailed Implementation

[0038] The present invention provides a method and device for controlling an electric tailgate, which solves the technical problem of how to reduce the impact noise generated when the electric tailgate is opened in a fully locked state.

[0039] To better understand the technical solution of the present invention, the technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] like Figure 1 As shown, the electric tailgate control method for automobiles in this embodiment includes:

[0041] Step S1: After receiving the opening command of the electric tailgate, obtain the locking status of the electric tailgate.

[0042] Step S2: If the power tailgate is fully locked, unlock the power tailgate and control the power tailgate's electric support rod to pull the power tailgate after unlocking it.

[0043] Step S3: After the first preset time, control the electric support rod to push open the electric tailgate.

[0044] In traditional electric tailgate control methods, when the electric tailgate is unlocked from a fully locked state, the reverse force generated by the sealing structure causes the electric tailgate to spring up quickly, producing a lot of impact noise.

[0045] In this embodiment, a brief reverse current can be applied to the motor of the electric support rod at the moment of unlocking when the electric tailgate is fully locked, controlling the motor to reverse and causing the electric support rod to hold the electric tailgate in place, preventing the electric tailgate from popping up quickly, thereby reducing the impact noise generated when opening the electric tailgate in the fully locked state. After a first preset time, a forward current is applied to the motor of the electric support rod, controlling the motor to rotate forward, causing the electric support rod to push open the electric tailgate, completing the opening of the electric tailgate.

[0046] In this embodiment, the electric tailgate also has a semi-locked state. When opening the electric tailgate in the semi-locked state, the reverse force generated by the sealing structure is small, and no significant impact noise is produced. Therefore, when opening the electric tailgate in the semi-locked state, it is not necessary to control the electric support rod to pull the electric tailgate. Moreover, if the electric support rod is controlled to pull the electric tailgate at the moment of unlocking in the semi-locked state, it may cause the electric tailgate to enter the fully locked state, making it impossible to open the electric tailgate. Therefore, after step S1, the electric tailgate control method of this embodiment further includes: if the electric tailgate is in the semi-locked state, then unlock the electric tailgate and control the electric support rod to push the electric tailgate open.

[0047] Step S3 can directly control the motor to rotate forward when it is reversing, but this may damage the motor gears. To ensure smooth switching between forward and reverse rotation, the electric tailgate control method of this embodiment can further include, after step S2 and before step S3, stopping the application of current to the motor of the electric strut after a second preset time. The second preset time is the time for applying reverse current to the motor. After stopping the application of current to the motor, the motor will gradually decelerate, and the first preset time can be set to ensure that the motor can decelerate and stop. In this way, controlling the motor to rotate forward after it has stopped can avoid damage to the motor gears.

[0048] The above describes the opening method of a power tailgate. For closing a power tailgate, if the tailgate closes at a small opening, traditional power tailgate control methods require applying a large current to the motor to overcome the reverse force generated by the sealing structure, which also produces significant impact noise. To reduce the impact noise generated when the power tailgate closes at a small angle, in this embodiment, the automotive power tailgate control method may further include:

[0049] Upon receiving the closing command of the electric tailgate, the opening degree of the electric tailgate is obtained; if the opening degree of the electric tailgate is lower than the preset opening degree threshold, the opening degree of the electric tailgate is increased to above the opening degree threshold; the opening degree of the electric tailgate is reduced to zero, and during the process of the opening degree of the electric tailgate decreasing from the opening degree threshold to zero, the electric tailgate is controlled to accelerate to the calibrated speed.

[0050] The opening threshold can be 30% to 50%. This is equivalent to first increasing the opening of the electric tailgate to a large angle when it is closing at a small angle, then controlling the opening to decrease from the large angle to zero, and accelerating the electric tailgate to a relatively large speed during the process of decreasing the opening from the threshold to zero. This allows the electric tailgate to overcome the reverse force generated by the sealing structure and close. Compared with the traditional method, which requires applying a large current to the motor to rapidly accelerate the electric tailgate as the opening decreases from below the threshold to zero, this embodiment accelerates the electric tailgate during the process of decreasing the opening from the threshold to zero. The acceleration time is longer, thus eliminating the need to apply a large current to the motor for rapid acceleration, which can reduce the impact noise generated when the electric tailgate closes at a small angle. Of course, it is possible that the speed of the electric tailgate has not yet reached the rated speed when the opening decreases to zero. In this case, the electric tailgate will continue to accelerate during the process of decreasing the opening from the threshold to zero. During the process of reducing the opening degree of the electric tailgate from above the opening degree threshold to the opening degree threshold, the electric tailgate can accelerate or move at a constant speed.

[0051] like Figure 2 As shown, this embodiment also provides a car electric tailgate control device, including:

[0052] The acquisition module is used to acquire the locking status of the electric tailgate after receiving the opening command of the electric tailgate;

[0053] The control module is used to unlock the electric tailgate and control the electric tailgate's electric strut to pull the electric tailgate after unlocking if the electric tailgate is in a fully locked state.

[0054] The control module is also used to control the electric strut to push open the electric tailgate after a first preset time.

[0055] Furthermore, the control module can also be used for:

[0056] After the second preset time, the current applied to the motor of the electric strut is stopped.

[0057] Furthermore, the acquisition module can also be used to acquire the opening degree of the electric tailgate after receiving the closing command of the electric tailgate;

[0058] The control module can also be used to increase the opening of the electric tailgate to above the preset opening threshold if the opening degree of the electric tailgate is lower than the preset opening threshold.

[0059] The control module can also be used to reduce the opening degree of the electric tailgate to zero, and control the electric tailgate to accelerate to the calibrated speed during the process of reducing the opening degree of the electric tailgate from the opening degree threshold to zero.

[0060] Furthermore, the control module can also be used to: if the electric tailgate is in a half-locked state, unlock the electric tailgate and control the electric strut to push the electric tailgate open.

[0061] Based on the same inventive concept as the electric tailgate control method for automobiles described above, this embodiment also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the steps of any of the methods of the electric tailgate control method for automobiles described above.

[0062] The bus architecture (represented by a bus) can include any number of interconnected buses and bridges, linking various circuits including one or more processors (represented by a processor) and memory (represented by memory). The bus can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface between the bus and receivers and transmitters. Receivers and transmitters can be the same element, a transceiver, providing a unit for communicating with various other devices over a transmission medium. The processor is responsible for managing the bus and general processing, while memory can be used to store data used by the processor during operation.

[0063] Since the electronic device described in this embodiment is the electronic device used to implement the electric tailgate control method of the present invention, those skilled in the art can understand the specific implementation and various variations of the electronic device in this embodiment based on the electric tailgate control method of the present invention. Therefore, how the electronic device implements the method of the present invention will not be described in detail here. Any electronic device used by those skilled in the art to implement the electric tailgate control method of the present invention falls within the scope of protection of the present invention.

[0064] Based on the same inventive concept as the above-described electric tailgate control method for automobiles, the present invention also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements any of the above-described electric tailgate control methods for automobiles.

[0065] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0066] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0067] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0068] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0069] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the invention.

[0070] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A method for controlling an electric tailgate for a car, characterized in that, include: Upon receiving the command to open the electric tailgate, the locking status of the electric tailgate is obtained; If the locking state is fully locked, then the electric tailgate is unlocked and the electric support rod of the electric tailgate is controlled to pull the electric tailgate after the electric tailgate is unlocked; After the first preset time period, control the electric support rod to push open the electric tailgate; Also includes: Upon receiving the closing command of the electric tailgate, the opening degree of the electric tailgate is obtained; If the opening degree of the electric tailgate is lower than a preset opening degree threshold, the opening degree of the electric tailgate is increased to be above the opening degree threshold. Reduce the opening of the electric tailgate to zero, and while the opening of the electric tailgate is decreasing from the opening threshold to zero, control the electric tailgate to accelerate to the calibrated speed.

2. The method for controlling an electric tailgate for automobiles as described in claim 1, characterized in that, If the locking state is a fully locked state, then after unlocking the electric tailgate and controlling the electric support rod of the electric tailgate to pull the electric tailgate after unlocking the electric tailgate and after the first preset time period, and before controlling the electric support rod to push open the electric tailgate, the method further includes: After the second preset time period, the current applied to the motor of the electric support rod is stopped.

3. The method for controlling an electric tailgate for automobiles as described in claim 1, characterized in that, After receiving the opening command for the power tailgate and obtaining the locking status of the power tailgate, the process further includes: If the locking state is a half-lock state, then the electric tailgate is unlocked and the electric support rod is controlled to push the electric tailgate open.

4. A control device for an electric tailgate of an automobile, characterized in that, include: The acquisition module is used to acquire the locking status of the electric tailgate after receiving the opening command of the electric tailgate; The control module is used to unlock the electric tailgate and control the electric support rod of the electric tailgate to pull the electric tailgate after the electric tailgate is unlocked if the locking state is a fully locked state. The control module is also used to control the electric support rod to push open the electric tailgate after a first preset time period; The acquisition module is also used to acquire the opening degree of the electric tailgate after receiving the closing command of the electric tailgate; The control module is also used to increase the opening degree of the electric tailgate to above the preset opening degree threshold if the opening degree of the electric tailgate is lower than the preset opening degree threshold. The control module is also used to reduce the opening degree of the electric tailgate to zero, and control the electric tailgate to accelerate to a calibrated speed during the process of the opening degree of the electric tailgate decreasing from the opening degree threshold to zero.

5. The electric tailgate control device for automobiles as described in claim 4, characterized in that, The control module is also used for: After the second preset time period, the current applied to the motor of the electric support rod is stopped.

6. The electric tailgate control device for automobiles as described in claim 4, characterized in that, The control module is also used for: If the locking state is a half-lock state, then the electric tailgate is unlocked and the electric support rod is controlled to push the electric tailgate open.

7. An electronic device, characterized in that, The device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the program, implements the electric tailgate control method for automobiles as described in any one of claims 1-3.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the electric tailgate control method for automobiles as described in any one of claims 1-3.

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