Back door limiting system control method, system, device and computer readable storage medium

Abstract

A back door limiting system control method, system, device and computer readable storage medium, the back door limiting system control method comprises: when receiving a back door opening trigger signal, controlling the back door movable block to move a distance ΔC away from the vehicle body fixed block, then controlling the back door to unlock and open; when receiving a back door closing trigger signal, controlling the back door to close and lock, then controlling the back door movable block to move a distance ΔC to the side close to the vehicle body fixed block. Before the back door is opened, the back door movable block moves away from the vehicle body fixed block, and after the door is locked, the back door movable block is moved to fit with the vehicle body fixed block, so that the back door movable block and the vehicle body fixed block are spaced apart from each other at the moment of opening and / or closing, and the back door movable block is fitted with the vehicle body fixed block after the back door is closed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile parts, in particular to a back door limiting system control method, system, device and computer readable storage medium. BACKGROUND

[0002] The back door limiting device can play a certain buffering role on the back door of the automobile, can also absorb the vibration generated during the driving of the vehicle, and the appearance gap difference between the back door and the side wall of the automobile can be adjusted through the back door limiting device.

[0003] Generally, the parts on the back door side and the vehicle body side are allowed to have a certain tolerance range during production and manufacturing, but even if the limiting block on the door side and the limiting block on the vehicle body side are within the tolerance range, there will still be a case that the gap between the limiting block on the back door side and the limiting block on the vehicle body side is too large or too small. When the gap between the limiting block on the back door side and the limiting block on the vehicle body side in the back door limiting device is too large, since the two limiting blocks do not contact each other, knocking between the two limiting blocks may occur during driving, resulting in abnormal sound. When the limiting block on the back door side and the limiting block on the vehicle body side in the back door limiting device are too close and too tight, since the interference between the two limiting blocks is too large, the two limiting blocks may collide when the back door is closed, which may damage the limiting block, or the door may bounce when the back door is opened due to the release of the counterforce. SUMMARY

[0004] The present application provides a back door limiting system control method, system, device and computer readable storage medium, which can solve the technical problems that when the gap between the limiting block on the back door side and the limiting block on the vehicle body side in the back door limiting device is too large, knocking between the two limiting blocks may occur during driving, resulting in abnormal sound, and when the limiting block on the back door side and the limiting block on the vehicle body side in the back door limiting device are too close and too tight, the two limiting blocks may collide when the back door is closed, which may damage the limiting block.

[0005] In a first aspect, the present application provides a back door limiting system control method, which comprises: when a back door opening trigger signal is received, controlling the back door movable block to move a distance ΔC towards the side away from the vehicle body fixed block, and then controlling the back door to be unlocked and opened; when a back door closing trigger signal is received, controlling the back door to be closed and locked, and then controlling the back door movable block to move a distance ΔC towards the side close to the vehicle body fixed block.

[0006] In combination with the first aspect, in an implementation, after the control of the movement of the movable block of the back door by a distance ΔC away from the fixed block of the vehicle body, the method further comprises: determining whether the absolute value |ΔA| of the difference between the actual sealing gap between the sealing surface of the back door and the sealing surface of the vehicle body and the preset sealing gap exceeds the tolerance value a of the preset sealing gap, and if the absolute value |ΔA| exceeds the tolerance value a, an alarm is given to remind that the sealing gap is out of tolerance, otherwise, the back door is controlled to be unlocked and opened.

[0007] In combination with the first aspect, in an implementation, the movable block of the back door has a first limiting surface, the fixed block of the vehicle body has a second limiting surface matched with the first limiting surface, and the first limiting surface and the mounting surface of the back door form a first included angle α, before the determination of whether the absolute value |ΔA| of the difference between the actual sealing gap between the sealing surface of the back door and the sealing surface of the vehicle body and the preset sealing gap exceeds the tolerance value a of the preset sealing gap, the method further comprises: obtaining the distance ΔC of the sliding of the movable block of the back door along the parallel direction of the mounting surface of the back door by using a sensor installed on the movable block of the back door; and calculating the difference ΔA between the actual sealing gap between the sealing surface of the back door and the sealing surface of the vehicle body and the preset sealing gap according to the interference design target B of the movable block of the back door and the fixed block of the vehicle body, the theoretical gap b of the movable block of the back door and the fixed block of the vehicle body, the second included angle β between the sealing surface of the back door and the mounting surface of the back door, the first included angle α, and the distance ΔC.

[0008] In combination with the first aspect, in an implementation, the calculation of the difference ΔA between the actual sealing gap between the sealing surface of the back door and the sealing surface of the vehicle body and the preset sealing gap comprises: establishing a relationship formula among the actual gap ΔB of the first limiting surface and the second limiting surface, the interference design target B of the movable block of the back door and the fixed block of the vehicle body, the distance ΔC of the sliding of the movable block of the back door along the parallel direction of the mounting surface of the back door, and the first included angle α, denoted as a first relationship formula; establishing a relationship formula among the theoretical gap b, the difference ΔA, the first included angle α, the second included angle β, and the actual gap ΔB, denoted as a second relationship formula; and calculating the difference ΔA between the actual sealing gap between the sealing surface of the back door and the sealing surface of the vehicle body and the preset sealing gap by substituting the second relationship formula into the first relationship formula.

[0009] In combination with the first aspect, in an implementation, the movable block of the back door is provided with a first contact switch, if the absolute value |ΔA| does not exceed the tolerance value a, the first contact switch is turned off within a preset time, the motor driving the movable block of the back door is controlled to stop working, the motor of the back door lock is controlled to be unlocked, and then the back door is controlled to be opened.

[0010] In combination with the first aspect, in an implementation, the back door movable block is provided with a second contact switch and a third contact switch on opposite sides, respectively, when the back door movable block contacts the second contact switch installed on one side of the back door movable block, an alarm signal is triggered to remind and the back door movable block is controlled to stop moving; when the back door movable block contacts the third contact switch installed on the other side of the back door movable block, an alarm signal is triggered to remind and the back door movable block is controlled to stop moving.

[0011] In the second aspect, the embodiments of the present application provide a back door limiting system control system, which comprises: a limiter controller configured to control a back door movable block to move a distance ΔC away from a vehicle body fixed block when receiving a back door opening trigger signal, and then control the back door to be unlocked and opened; the limiter controller is further configured to control the back door to be closed and locked when receiving a back door closing trigger signal, and then control the back door movable block to move a distance ΔC to be close to the vehicle body fixed block.

[0012] In combination with the second aspect, in an implementation, the back door limiting system control system further comprises a driving mechanism, the limiter controller is in signal connection with the driving mechanism, and the driving mechanism is configured to receive a control signal of the limiter controller and drive the back door movable block to move away from the vehicle body fixed block or to move to be close to the vehicle body fixed block.

[0013] In the third aspect, the embodiments of the present application provide a back door limiting system control device, which comprises a processor, a memory, and a back door limiting system control program stored in the memory and executable by the processor, wherein when the back door limiting system control program is executed by the processor, the steps of the back door limiting system control method described above are implemented.

[0014] In the fourth aspect, the embodiments of the present application provide a computer readable storage medium, characterized in that the computer readable storage medium stores a back door limiting system control program, wherein when the back door limiting system control program is executed by a processor, the steps of the back door limiting system control method described above are implemented.

[0015] The technical scheme provided by the embodiments of the present application has the beneficial effects of:

[0016] By moving the back door movable block to be separated from the vehicle body fixed block before opening the back door, and moving the back door movable block to be attached to the vehicle body fixed block after the back door locking is completed, the back door movable block and the vehicle body fixed block can be spaced apart from each other at the moment of opening and / or closing the back door, and the back door movable block and the vehicle body fixed block can be attached to each other after the back door is closed, so that the technical problem that the back door side limiting movable block and the vehicle body side limiting block may be damaged due to too large interference, or may knock each other to produce abnormal sound in the related art is solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A flowchart of a back door limiting system control method provided by an embodiment of the present application is shown.

[0018] Figure 2 A structure diagram of a back door movable block and a vehicle body fixed block provided by an embodiment of the present application is shown.

[0019] Figure 3 Another structure diagram of a back door movable block and a vehicle body fixed block provided by an embodiment of the present application is shown.

[0020] Figure 4 A structure diagram of a back door fixed block provided by an embodiment of the present application is shown.

[0021] Figure 5 A structure diagram of a back door movable block and a vehicle body fixed block provided by an embodiment of the present application is shown.

[0022] Figure 6 A back door opening process control principle diagram provided by an embodiment of the present application is shown.

[0023] Figure 7 A back door closing process control principle diagram provided by an embodiment of the present application is shown.

[0024] Figure 8 A hardware structure diagram of a back door limiting system control device involved in an embodiment of the present application is shown.

[0025] In the drawings:

[0026] 11, back door movable block; 111, first limiting surface; 12, back door fixed block;

[0027] 2, vehicle body fixed block; 21, second limiting surface;

[0028] 3, first contact switch;

[0029] 4, second contact switch;

[0030] 5, third contact switch;

[0031] 6, rotating wheel;

[0032] 7. Worm;

[0033] 8. Vehicle body sealing surface;

[0034] 9. Back door sealing surface;

[0035] 10. Back door mounting surface. DETAILED DESCRIPTION

[0036] In order to make the personnel in the technical field better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0037] In order to make the purpose, technical scheme and advantages of the present application more clear, the embodiments of the present application will be further described in detail in combination with the drawings.

[0038] In a first aspect, the embodiments of the present application provide a back door limiting system control method.

[0039] In an embodiment, with reference to Figure 1 , Figure 1 The flowchart of the first embodiment of the back door limiting system control method of the present application is shown in FIG. 1. As shown in FIG. 1, the back door limiting system control method can include the following steps. Figure 1

[0040] S1: When receiving a back door opening trigger signal, control the back door movable block 11 to move a distance ΔC towards the side away from the vehicle body fixed block 2, and then control the back door to be unlocked and opened, that is, when receiving a back door opening signal, first control the back door movable block 11 to separate from the vehicle body fixed block 2, and then control the back door to be opened after the separation.

[0041] ​S2: when receiving the back door closing trigger signal, control the back door to close and lock, and then control the back door movable block 11 to move a distance ΔC towards the side close to the vehicle body fixed block 2, that is, when the back door needs to be closed, because the back door movable block 11 has been moved away from the vehicle body fixed block 2 before the back door is opened, the back door movable block 11 and the vehicle body fixed block 2 do not contact each other at the moment when the back door is closed, so that the back door movable block 11 and the vehicle body fixed block 2 are prevented from being damaged by mutual impact at the moment when the door is closed, and the abnormal sound caused by the mutual contact between the back door movable block 11 and the vehicle body fixed block 2 is effectively prevented. After the back door is closed, the back door movable block 11 moves a distance ΔC to return to the position where the back door movable block 11 is attached to the vehicle body fixed block 2. It should be understood that the operation sequence of S1 and S2 in the embodiment of the application can be exchanged.

[0042] In the embodiment, by moving the back door movable block 11 away from the vehicle body fixed block 2 before the back door is opened, and then moving the back door movable block 11 to be attached to the vehicle body fixed block 2 after the door lock is completed, the back door movable block 11 and the vehicle body fixed block 2 can be spaced apart from each other at the moment when the back door is opened and / or closed. The movement of the back door movable block 11 and the completion of unlocking of the back door can be controlled by one control mechanism. When the back door movable block 11 is moved away from the vehicle body fixed block 2, the process can be completed in a short time. After confirming that the back door movable block 11 has been moved to the preset position, the back door lock is unlocked to open the back door. The short time can reduce the sensory effect of the back door movable block 11 on the driver when the back door is opened and / or closed. After the back door is closed, the back door movable block 11 and the vehicle body fixed block 2 can be attached to each other. The back door movable block 11 and the vehicle body fixed block 2 can interfere with each other when they are attached to each other, which effectively reduces the abnormal sound caused by the mutual knocking of the back door movable block 11 and the vehicle body fixed block 2 during the forming process. The technical problem of damage to the limiting blocks due to excessive interference between the back door side limiting movable block and the vehicle body side limiting block in the related art, or abnormal sound caused by mutual knocking due to excessive gap is solved.

[0043] Further, in an embodiment, after the back door movable block 11 moves a distance ΔC towards the side away from the vehicle body fixed block 2, the method further comprises: judging whether the absolute value |ΔA| of the difference between the actual sealing gap between the back door sealing surface 9 and the vehicle body sealing surface 8 and the preset sealing gap exceeds the tolerance value a of the preset sealing gap. If the absolute value |ΔA| exceeds the tolerance value a, an alarm is given to remind that the sealing gap is out of tolerance. Otherwise, the back door is unlocked and opened. See Figure 2 and Figure 3As shown, the preset sealing gap is A indicated in the figure, and it should be understood that during the manufacturing and installation process of the vehicle body, there may be a certain error between the sealing gap of the back door sealing surface 9 and the vehicle body sealing surface 8, and the error can be sealed within the tolerance range. In the embodiment of the application, by establishing the relationship between the sealing gap and the moving distance of the back door movable block 11, the moving range of the back door movable block 11 is set according to the relationship, and even if there is a certain tolerance between the sealing gap of the back door sealing surface 9 and the vehicle body sealing surface 8, the back door movable block 11 can be moved to be attached to the vehicle body fixed block 2, and the effect of preventing the back door movable block 11 and the vehicle body fixed block 2 from knocking each other to produce abnormal sound during the driving of the vehicle is achieved. And by judging whether the absolute value |ΔA| of the difference between the actual sealing gap and the preset sealing gap exceeds the tolerance value a of the preset sealing gap, an alarm is given or the back door is controlled to be unlocked and opened. At this time, the alarm can also be regarded as the movement of the back door movable block 11 exceeding the preset moving range.

[0044] Further, in order to enhance the inspection efficiency during the qualified inspection of the vehicle, the vehicles are usually inspected by sampling, and the vehicles whose sealing gap between the back door sealing surface 9 and the vehicle body sealing surface 8 exceeds the tolerance range cannot be well inspected. During the driving of the vehicle, the driver may not be able to find the problem in time because the error between the sealing gap of the back door sealing surface 9 and the vehicle body sealing surface 8 is not obvious at the initial stage of driving. However, due to the error between the sealing gap of the back door sealing surface 9 and the vehicle body sealing surface 8, the interference between the back door sliding block and the vehicle body fixed block 2 may be too large or the two cannot be closely attached. After a long time of driving, the back door sliding block and the vehicle body fixed block 2 may be damaged. Through the setting mode, when the back door movable block 11 moves beyond the range and an alarm is given, the vehicle can be driven to the repair shop in time for repair.

[0045] In the embodiment, by establishing the relationship between the sealing gap and the moving distance of the back door movable block 11, and setting the moving range of the back door movable block 11 according to the relationship, the sealing gap of the back door of the vehicle can be kept within a certain error range, and the back door movable block 11 and the vehicle body fixed block 2 can be cooperated with each other. Through the judgment of the size between the absolute value |ΔA| of the difference and the tolerance value a, the driver can find the problem in time when the sealing gap of the vehicle exceeds the tolerance range, and the technical problem that the back door movable block 11 of some vehicle doors cannot be moved to be attached to the vehicle body fixed block 2 due to the error between the sealing gap of the back door sealing surface 9 and the vehicle body sealing surface 8 is solved.

[0046] Further, in an embodiment, the back door movable block 11 has a first limiting surface 111, the vehicle body fixed block 2 has a second limiting surface 21 matched with the first limiting surface 111, and the first limiting surface 111 and the back door mounting surface 10 have a first included angle a. In the embodiment, the back door movable block 11 can be triangular, the side of the back door movable block 11 close to the back door fixed block 12 is attached to the surface of the back door movable block 11, the side of the back door movable block 11 close to the back door movable block 11 can be referred to as a sliding surface, the sliding surface is parallel to the back door mounting surface 10, at this time, the first limiting surface 111 and the sliding surface have an included angle, since the sliding surface is parallel to the back door mounting surface 10, the included angle is the first included angle a between the first limiting surface 111 and the back door mounting surface 10. Before determining whether the absolute value |ΔA| of the difference between the actual sealing gap between the back door sealing surface 9 and the vehicle body sealing surface 8 and the preset sealing gap exceeds the tolerance value a of the preset sealing gap, the method further comprises: obtaining the distance ΔC of the back door movable block 11 sliding along the direction parallel to the back door mounting surface 10 by using the sensor installed on the back door movable block 11; calculating the difference ΔA between the actual sealing gap between the back door sealing surface 9 and the vehicle body sealing surface 8 and the preset sealing gap according to the interference amount design target B of the back door movable block 11 and the vehicle body fixed block 2, the theoretical gap b of the back door movable block 11 and the vehicle body fixed block 2, the second included angle β between the back door sealing surface 9 and the back door mounting surface 10, the first included angle a, and the distance ΔC. Specifically, the distance ΔC of the back door movable block 11 sliding along the direction parallel to the back door mounting surface 10 can be obtained by the sensor, the interference amount design target B of the back door movable block 11 and the vehicle body fixed block 2, the theoretical gap b of the back door movable block 11 and the vehicle body fixed block 2, the second included angle β, and the first included angle a are constant values, therefore, the difference ΔA can be calculated by using the above known values. It should be understood that the above values can have different values in different vehicle models.

[0047] In the embodiment, the difference ΔA between the actual sealing gap between the back door sealing surface 9 and the vehicle body sealing surface 8 and the preset sealing gap is calculated by using multiple known values and the measurable value, and when the difference ΔA is known, the distance ΔC can be determined to trigger the alarm, thereby solving the technical problem that the back door movable block 11 cannot determine whether the moving distance exceeds the tolerance in a timely manner in the related art.

[0048] Further, in an embodiment, the calculating the difference ΔA between the actual sealing gap between the back door sealing surface 9 and the vehicle body sealing surface 8 and the preset sealing gap comprises: establishing a relationship between the actual gap ΔB of the first limiting surface 111 and the second limiting surface 21, the interference design target B of the back door movable block 11 and the vehicle body fixed block 2, the sliding distance ΔC of the back door movable block 11 along the direction parallel to the back door mounting surface 10, and the first included angle α, denoted as the first relationship, specifically, the interference design target value B can be a designed constant value, and the actual gap ΔB of the first limiting surface 111 and the second limiting surface 21 can refer to the distance between the first limiting surface 111 and the second limiting surface 21 along the direction perpendicular to the first limiting surface 111 at the moment when the back door is closed, and the first relationship can be denoted as B=ΔC*sinα-ΔB, wherein ΔC*sinα is the moving amount of the first limiting surface 111 and the second limiting surface 21 along the direction perpendicular to the first limiting surface 111 when the back door movable block 11 slides by the distance ΔC.

[0049] Further, the relationship between the theoretical gap b, the difference ΔA, the first angle α and the second angle β and the actual gap ΔB is established, which is recorded as the second relationship. It should be understood that the back door sealing surface 9 and the vehicle body sealing surface 8 can be arranged in parallel, at this time, the back door sealing surface 9 and the back door mounting surface 10 have the second angle β, the first limiting surface 111 and the back door mounting surface 10 have the first angle α, and the angle between the back door sealing surface 9 and the first limiting surface 111 is 180°-β-α. Thereafter, a point is selected from the first limiting surface 111 close to the vehicle body sealing surface 8, a line segment parallel to the direction perpendicular to the first limiting surface 111 is drawn from the point towards the side close to the back door sealing surface 9, the line segment is perpendicular to the first limiting surface 111, and a perpendicular line perpendicular to the back door sealing surface 9 is drawn from the point towards the side of the back door sealing surface 9, which is the gap value between the back door sealing surface 9 and the vehicle body sealing surface 8, and the line segment corresponds to the movement amount of the first limiting surface 111 and the second limiting surface 21 along the direction perpendicular to the first limiting surface 111. When the sealing gap between the back door sealing surface 9 and the vehicle body sealing surface 8 is the preset sealing gap, the distance between the first limiting surface 111 and the second limiting surface 21 is b. In the case that there is an error in the sealing gap between the back door sealing surface 9 and the vehicle body sealing surface 8, when the back door sealing surface 9 and the vehicle body sealing surface 8 need to be cooperatively sealed, the vehicle body sealing surface 8 needs to move more or less distance ΔA in the direction of the perpendicular line, and correspondingly, the line segment also needs to move more or less distance in the direction of the line segment. According to the geometric relationship in the figure, through conversion, it can be obtained that ΔB = b-ΔA / cos(180-α-β). The second relationship is brought into the first relationship to calculate the difference ΔA between the actual sealing gap and the preset sealing gap between the back door sealing surface 9 and the vehicle body sealing surface 8. The formula after being brought in can be recorded as B = ΔC*sinα-b+ΔA / cos(180-α-β), and the difference ΔA can be calculated according to the formula.

[0050] In the embodiment, by establishing the first relationship and the second relationship, even if there is an error in the sealing gap between the back door sealing surface 9 and the vehicle body sealing surface 8, the back door movable block 11 can be set to move a certain distance to adapt to the error, so that the back door movable block 11 and the vehicle body fixed block 2 interfere with each other, and the movement range of the back door movable block 11 can be set through calculation. When the back door movable block 11 exceeds the movement range, an alarm is given to remind the driver, which solves the technical problem that the sealing gap between the back door sealing surface 9 and the vehicle body sealing surface 8 cannot be found in time.

[0051] Further, referring to Figure 6As shown, in an embodiment, the back door movable block 11 is provided with a first touch switch 3. If the absolute value |ΔA| does not exceed the tolerance value a, the first touch switch 3 is disconnected within a preset time, the motor driving the back door movable block 11 is controlled to stop working, the motor of the back door lock is controlled to be unlocked, and then the back door is controlled to be opened. In the embodiment of the application, the distance ΔC of the back door movable block 11 sliding along the parallel direction to the back door mounting surface 10 can be obtained through the first touch switch 3. That is, when the back door is opened, the back door movable block 11 moves a distance ΔC towards the side away from the vehicle body fixed block 2, and then according to the calculation, it is judged that |ΔA| is less than a, and the first touch switch 3 is disconnected within 100 ms. It should be understood that when the back door is in a closed state, the vehicle body fixed block 2 can press the back door movable block 11 a certain distance along the direction perpendicular to the first limiting surface 111, and at this time, the first touch switch 3 is in a connected state. Then when the back door needs to be opened, the back door movable block 11 moves towards the side away from the vehicle body fixed block 2. When the back door movable block 11 moves a certain distance, the back door movable block 11 and the vehicle body fixed block 2 are away from each other, and then the first touch switch 3 is disconnected, and the back door movable block 11 stops moving. Figure 7 As shown, when the back door is closed, the interference between the back door movable block 11 and the vehicle body fixed block 2 reaches B, and then the first touch switch 3 can be connected. After receiving the signal that the first touch switch 3 is connected, the controller can control the motor to stop driving the back door movable block 11, that is, the closing switch of the back door is triggered, and after confirming that the back door lock is locked, the back door movable block 11 is controlled to move. When the back door movable block 11 moves to be attached to the vehicle body fixed block 2, the first touch switch 3 is also disconnected within 100 ms.

[0052] In the embodiment, by setting the first touch switch 3, the moving distance of the back door movable block 11 can be obtained in time, and by using the disconnection of the first touch switch 3 to make the back door movable block 11 stop moving, the back door movable block 11 can be timely driven to stop, which can effectively prevent the problem that the back door movable block 11 or the back door fixed block 12 is damaged due to the too large moving distance of the back door movable block 11.

[0053] Further, the second contact switch 4 and the third contact switch 5 are arranged on the opposite sides of the back door movable block 11 respectively, when the back door movable block 11 contacts the second contact switch 4 arranged on one side of the back door movable block 11, an alarm signal is triggered to remind and the back door movable block 11 is controlled to stop moving; when the back door movable block 11 contacts the third contact switch 5 arranged on the other side of the back door movable block 11, an alarm signal is triggered to remind and the back door movable block 11 is controlled to stop moving, the second contact switch 4 and the third contact switch 5 can be used as the limiting device in the present application, the second contact switch 4 and the third contact switch 5 can be arranged at the limit positions of the sliding of the back door fixed block 12, the limit positions can be determined according to the tolerance value a of the preset sealing gap, when the back door movable block 11 moves to the positions of the second contact switch 4 or the third contact switch 5, the second contact switch 4 and the third contact switch 5 can timely alarm, and when the back door movable block 11 moves to the positions of the second contact switch 4 and the third contact switch 5, the second contact switch 4 and the third contact switch 5 can also be disconnected to stop the movement of the back door movable block 11, thereby effectively protecting the back door movable block 11. The second contact switch 4 and the third contact switch 5 can be arranged on the back door fixed block 12 respectively, so that the back door movable block 11 can contact the second contact switch 4 or the third contact switch 5 respectively when sliding to the limit positions along the back door fixed block 12.

[0054] In the embodiment, the second contact switch 4 and the third contact switch 5 are arranged on the back door fixed block 12 along the opposite sides of the back door movable block 11 respectively, which can further increase the judgment of the movement of the back door movable block 11 beyond the distance.

[0055] In a second aspect, the present application also provides a back door limiting system control system.

[0056] In an embodiment, the back door limiting system control system comprises a limiting block controller, which is used to control the back door movable block 11 to move a distance ΔC towards the side away from the vehicle body fixed block 2 when receiving a back door opening trigger signal, and then control the back door to be unlocked and opened; the limiting block controller is also used to control the back door to be closed and locked when receiving a back door closing trigger signal, and then control the back door movable block 11 to move a distance ΔC towards the side close to the vehicle body fixed block 2, in the present application, the limiting block controller can control the opening or closing of the back door in addition to controlling the movement of the back door movable block 11.

[0057] Further, in an embodiment, referring to Figure 4 and Figure 5As shown, the back door limiting system control system further comprises a new driving mechanism module, the limiting block controller is in signal connection with the driving mechanism, the driving mechanism is used for receiving the control signal of the limiting block controller and driving the back door movable block 11 to move away from the side of the vehicle body fixed block 2 or to move close to the side of the vehicle body fixed block 2. In the embodiment of the application, the driving mechanism can be a driving motor, the driving motor is connected with a rotating wheel 6, and the rotating wheel 6 is installed on the side of the back door fixed block 12 away from the back door movable block 11. The back door movable block 11 can be connected with a worm 7, the worm 7 drives the back door movable block 11 to move, the worm 7 is engaged with the rotating wheel 6 to realize driving, the second contact switch 4 and the third contact switch 5 are installed on the opposite sides of the worm 7 in the embodiment of the application, and the first contact switch 3 is further installed on the side of the back door movable block 11. The first contact switch 3, the second contact switch 4 and the third contact switch 5 are in signal connection with the limiting block controller.

[0058] In the above back door limiting system control system, the functions of each module correspond to each step in the above back door limiting system control method embodiment, and the functions and implementation processes are not repeated here.

[0059] In a third aspect, the embodiment of the application provides a back door limiting system control device. The back door limiting system control device can be a computer, a notebook computer, a server or other devices with data processing functions.

[0060] Reference Figure 8 , Figure 8 The figure is a schematic diagram of the hardware structure of the back door limiting system control device involved in the embodiment of the application. In the embodiment of the application, the back door limiting system control device can include a processor, a memory, a communication interface and a communication bus.

[0061] The communication bus can be any type, used for interconnecting the processor, the memory and the communication interface.

[0062] The communication interface includes an input / output (I / O) interface, a physical interface and a logical interface, which are used for interconnecting the devices inside the back door limiting system control device, and are used for interconnecting the back door limiting system control device with other devices (for example, other computing devices or user devices). The physical interface can be an Ethernet interface, a fiber interface, an ATM interface and the like; the user device can be a display (Display), a keyboard (Keyboard) and the like.

[0063] The memory can be various types of storage media, such as random access memory (RAM), read-only memory (ROM), non-volatile RAM (NVRAM), flash memory, optical storage, hard disk, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), and the like.

[0064] The processor can be a general-purpose processor, which can invoke a back door limiting system control program stored in the memory and execute the back door limiting system control method provided by the embodiments of the present application. For example, the general-purpose processor can be a central processing unit (CPU). The method executed by the back door limiting system control program when invoked can refer to various embodiments of the back door limiting system control method of the present application, which will not be described here.

[0065] Those skilled in the art can understand that the hardware structure shown in the above-mentioned embodiments is not a limitation of the present application, and can include more or less components than the illustrated components, or combine certain components, or different component arrangements. Figure 8

[0066] In a fourth aspect, the embodiments of the present application further provide a computer readable storage medium.

[0067] The computer readable storage medium of the present application stores a back door limiting system control program, wherein the back door limiting system control program is executed by the processor to implement the steps of the back door limiting system control method as described above.

[0068] The method implemented by the back door limiting system control program when executed can refer to various embodiments of the back door limiting system control method of the present application, which will not be described here.

[0069] It should be noted that the above-mentioned sequence number of the embodiments of the present application is only for description, and does not represent the advantages and disadvantages of the embodiments.

[0070] ​The terms "comprise", "comprising", "include", "including", "have" and "having" and any variations thereof in the specification and in the claims are intended to cover both the express and implicit meaning of the terms. For example, the process, method, system, product or apparatus that includes a series of steps or units is not limited to the listed steps or units but can optionally also include other steps or units not listed. The terms "first", "second" and "third" and the like in the description and in the claims are used for distinguishing between similar elements and not necessarily for describing a sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances.

[0071] In the description of the embodiments of the present application, "exemplary", "for example", "e.g." or "for instance" are used on the basis that a proper meaning of the terms can be found by those skilled in the art in the context where the terms are used. Any embodiment or design scheme described as "exemplary", "for example", "e.g." or "for instance" in the embodiments of the present application should not be interpreted as being more preferred or advantageous than other embodiments or design schemes. In fact, the terms "exemplary", "for example", "e.g." or "for instance" are used in the sense of that a related concept is presented in a specific manner.

[0072] In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in the text only describes the relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0073] In some of the processes described in the embodiments of the present application, a plurality of operations or steps are presented in a specific order. It should be understood that the operations or steps can be executed in an order different than presented, or in parallel, and the order of the operations should not be interpreted as a limitation on the execution order of the operations. In addition, these processes can include more or fewer operations, and the operations or steps can be executed in sequence or in parallel, and the operations or steps can be combined.

[0074] From the above description of the embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment method can be realized by means of software and necessary general hardware platform, of course, it can also be realized by hardware, but in many cases the former is a better embodiment. Based on such understanding, the technical solutions of the present application can be embodied in the form of a software product, which is stored in a storage medium (such as a ROM / RAM, a magnetic disk, an optical disk) as described above, and includes a plurality of instructions for causing a terminal device to execute the methods described in the embodiments of the present application.

[0075] The above merely provides the preferred embodiments of the present application, and is not intended to limit the patent scope of the present application. Any equivalent structure or equivalent flow transformation made by the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A control method of a back door check system, characterized by, The back door limiting system control method comprises: The back door limiting system is located between the back door and the side wall of the automobile, the back door movable block (11) is located on the back door of the automobile, and the vehicle body fixed block (2) is located on the side wall of the automobile; The back door movable block (11) has a first limiting surface (111), the vehicle body fixed block (2) has a second limiting surface (21) matched with the first limiting surface (111), and the first limiting surface (111) and the back door mounting surface (10) have a first included angle a; When receiving a back door opening trigger signal, the back door movable block (11) is controlled to move a distance ΔC away from the vehicle body fixed block (2), and then the back door is controlled to be unlocked and opened; When receiving a back door closing trigger signal, the back door is controlled to be closed and locked, and then the back door movable block (11) is controlled to move a distance ΔC to the side close to the vehicle body fixed block (2); The absolute value |ΔA| of the difference between the actual sealing gap and the preset sealing gap between the back door sealing surface (9) and the vehicle body sealing surface (8) is determined, and if the absolute value |ΔA| exceeds the tolerance value a of the preset sealing gap, an alarm is given to remind that the sealing gap is out of tolerance, otherwise the back door is controlled to be unlocked and opened.

2. The control method of the back door check system according to claim 1, wherein Before determining whether the absolute value |ΔA| of the difference between the actual sealing gap and the preset sealing gap between the back door sealing surface (9) and the vehicle body sealing surface (8) exceeds the tolerance value a of the preset sealing gap, the method further comprises: The distance ΔC of the back door movable block (11) sliding parallel to the back door mounting surface (10) is obtained by using a sensor installed on the back door movable block (11); According to the interference amount design target B of the back door movable block (11) and the vehicle body fixed block (2), the theoretical gap b of the back door movable block (11) and the vehicle body fixed block (2), the second included angle β between the back door sealing surface (9) and the back door mounting surface (10), the first included angle a and the distance ΔC, the difference ΔA between the actual sealing gap and the preset sealing gap between the back door sealing surface (9) and the vehicle body sealing surface (8) is calculated.

3. The control method of the back door check system according to claim 2, wherein The calculation of the difference ΔA between the actual sealing gap and the preset sealing gap between the back door sealing surface (9) and the vehicle body sealing surface (8) comprises: A relationship between the actual gap ΔB of the first limiting surface (111) and the second limiting surface (21), the interference amount design target B of the back door movable block (11) and the vehicle body fixed block (2), the distance ΔC of the back door movable block (11) sliding parallel to the back door mounting surface (10) and the first included angle a is established, and is denoted as a first relationship; A relationship between the theoretical gap b, the difference ΔA, the first included angle a and the second included angle β and the actual gap ΔB is established, and is denoted as a second relationship; The second relationship is brought into the first relationship, and the difference ΔA between the actual sealing gap and the preset sealing gap between the back door sealing surface (9) and the vehicle body sealing surface (8) is calculated.

4. The control method of the back door check system according to claim 1, wherein The back door movable block (11) is provided with a first touch switch (3), If the absolute value |ΔA| does not exceed the tolerance value a, the first touch switch (3) is turned off within a preset time, and the motor driving the back door movable block (11) is controlled to stop working; The motor of the back door lock is controlled to be unlocked, and then the back door is controlled to be opened; The first contact switch (3) is installed on one side of the back door movable block (11).

5. The control method of the back door check system according to claim 1, wherein The opposite sides of the back door movable block (11) are respectively provided with a second contact switch (4) and a third contact switch (5), When the back door movable block (11) contacts the second contact switch (4) installed on one side of the back door movable block (11), an alarm signal is triggered to remind and control the back door movable block (11) to stop moving; When the back door movable block (11) contacts the third contact switch (5) installed on the other side of the back door movable block (11), an alarm signal is triggered to remind and control the back door movable block (11) to stop moving; The back door movable block (11) can be connected with a worm (7), and the second contact switch (4) and the third contact switch (5) are installed on opposite sides of the worm (7).

6. A control system for a back door check system, characterized in that The back door limiting system control system comprises: The back door limiting system is located between the back door and the side wall of the automobile, the back door movable block (11) is located on the back door of the automobile, and the vehicle body fixed block (2) is located on the side wall of the automobile; The back door movable block (11) has a first limiting surface (111), the vehicle body fixed block (2) has a second limiting surface (21) matched with the first limiting surface (111), and the first limiting surface (111) and the back door mounting surface (10) have a first included angle α; The limiter controller is configured to control the back door movable block (11) to move a distance ΔC away from the vehicle body fixed block (2) when receiving a back door opening trigger signal, and then control the back door to be unlocked and opened. The limiter controller is further configured to control the back door to be closed and locked when receiving a back door closing trigger signal, and then control the back door movable block (11) to move a distance ΔC towards the vehicle body fixed block (2). The absolute value |ΔA| of the difference between the actual sealing gap and the preset sealing gap between the back door sealing surface (9) and the vehicle body sealing surface (8) is determined, and if the absolute value |ΔA| exceeds the tolerance value a of the preset sealing gap, an alarm is given to remind that the sealing gap is out of tolerance, otherwise the back door is unlocked and opened.

7. The back door limiting system control system of claim 6, wherein: The back door limiting system control system further comprises a driving mechanism, the limiter controller is signal connected with the driving mechanism, and the driving mechanism is configured to receive the control signal of the limiter controller and drive the back door movable block (11) to move away from the vehicle body fixed block (2) or move towards the vehicle body fixed block (2).

8. A back door check system control device characterized by comprising: The back door limiting system control device comprises a processor, a memory, and a back door limiting system control program stored on the memory and executable by the processor, wherein when the back door limiting system control program is executed by the processor, the steps of the back door limiting system control method according to any one of claims 1 to 5 are implemented.

9. A computer-readable storage medium, characterized in that, The computer readable storage medium stores a back door limiting system control program, wherein when the back door limiting system control program is executed by the processor, the steps of the back door limiting system control method according to any one of claims 1 to 5 are implemented.

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