CN213297600U - Door ejection mechanism, door control system and car - Google Patents

Abstract

The present disclosure provides a door ejection mechanism, including: a drive device capable of outputting a rotational motion; a transmission device connected to the drive device, the transmission device reducing a rotational speed of a rotational motion output from the drive device and increasing a torque of the rotational motion; and the execution device is connected with the speed change device, the speed change device transmits the rotation action to the execution device, and the execution device ejects the door based on the rotation action converted by the speed change device. The present disclosure also provides a door control system and an automobile.

Description

Door ejection mechanism, door control system and car

Technical Field

The utility model belongs to the technical field of car door control, the disclosure especially relates to a door ejection mechanism, door control system and car.

Background

In the prior art, an automobile door is generally provided with an outer handle, and after a user unlocks the automobile, the door lock is released by pulling the outer handle outwards, and then the automobile door is opened by continuously pulling the outer handle.

The height that the outer handle of door arranged on the door, front and back position will accord with human-machine engineering to in the operation of getting on or off the bus of personnel, the regional door planking of outer handle will have heavy platform simultaneously, in order to provide sufficient outer handle hand operating space, the size, the degree of depth of heavy platform can influence the figurative characteristic line position of door side and door planking stamping forming, consequently, the existence of the outer handle of door, have brought certain limitation to the car side molding. However, for a conventional automobile door, the release and the opening of the automobile door lock cannot be realized without pulling an outer handle.

With the development of automobile technology, after the door lock of the automobile door receives an unlocking signal, automatic release can be realized, the outer handle does not need to be pulled for release, a part for opening the automobile door still needs to be pulled for a person, and the outer handle still cannot be cancelled from the angle.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one of the above technical problems, the present disclosure provides a door ejection mechanism, a door control system, and an automobile.

The car door ejection mechanism, the car door control system and the car are realized through the following technical scheme.

According to one aspect of the present disclosure, there is provided a vehicle door ejection mechanism including: a drive device capable of outputting a rotational motion; a transmission device connected to the drive device, the transmission device reducing a rotational speed of a rotational motion output from the drive device and increasing a torque of the rotational motion; and the execution device is connected with the speed change device, the speed change device transmits the rotation action to the execution device, and the execution device ejects the door based on the rotation action converted by the speed change device.

According to the vehicle door ejection mechanism of at least one embodiment of the present disclosure, the driving device is a motor.

According to the door ejection mechanism of at least one embodiment of the present disclosure, the transmission includes a planetary gear set and a transmission housing, the planetary gear set being disposed within the transmission housing.

According to the door ejection mechanism of at least one embodiment of the present disclosure, the drive shaft of the drive device is connected to the sun gear of the planetary gear set, so that the drive device transmits the rotational motion to the planetary gear set.

According to the vehicle door ejection mechanism of at least one embodiment of the disclosure, the vehicle door ejection mechanism further comprises a reversing gear set, the executing device is connected with the speed changing device through the reversing gear set, the reversing gear set reverses the rotation action and then transmits the rotation action to the executing device, and the executing device and the driving device are arranged in parallel.

According to the vehicle door ejection mechanism of at least one embodiment of the present disclosure, the reversing gear set includes a first gear and a second gear, the first gear and the second gear are engaged with each other, and a central rotating shaft of an outer peripheral gear of the planetary gear set is connected with a central rotating shaft of a first gear of the reversing gear set, so that the planetary gear set transmits a rotational motion to the reversing gear set.

According to the vehicle door ejection mechanism of at least one embodiment of the present disclosure, the actuating device includes a lead screw and a slider, one end of the lead screw is connected with the central rotation hole of the second gear, so that the rotation motion can be transmitted to the actuating device by the reversing gear set, the other end of the lead screw is fixedly connected with the slider through a bearing, so that the slider can slide around the lead screw, and the slider can be driven by the lead screw.

According to the vehicle door ejection mechanism of at least one embodiment of the present disclosure, the actuator further includes a first housing and a second housing, the screw and the slider are disposed in the first housing, the second housing is provided with an ejection hole, and the slider can be driven by the screw to be ejected out of the ejection hole of the second housing so as to eject the vehicle door.

According to the vehicle door ejection mechanism of at least one embodiment of the present disclosure, the first housing provides sealing to the lead screw and the slider.

According to the vehicle door ejection mechanism of at least one embodiment of the present disclosure, the second housing further includes two bolts symmetrically disposed about the ejection hole for mounting the actuator on the inner panel of the vehicle door.

According to at least one embodiment of this disclosure, the door ejection mechanism further includes a reversing gear set housing, the reversing gear set is disposed in the reversing gear set housing, a first end of the first housing is fixedly connected with the reversing gear set housing, and a second end of the first housing is fixedly connected with the second housing.

According to the vehicle door ejection mechanism of at least one embodiment of the present disclosure, the number of the circumferential gears of the planetary gear set is three, the circumferential gears are uniformly arranged on the periphery of the sun gear of the planetary gear set, and the diameter of the circumferential gears is larger than that of the sun gear.

According to the vehicle door ejection mechanism of at least one embodiment of the present disclosure, after the door lock is released, the vehicle door ejection mechanism automatically pushes the vehicle door away by the first predetermined angle.

The vehicle door ejection mechanism according to at least one embodiment of the present disclosure further includes an acceleration sensor for measuring an acceleration of the movement of the vehicle door, and the acceleration of the movement of the vehicle door measured by the acceleration sensor during the pushing of the vehicle door by the vehicle door ejection mechanism to the first predetermined angle is the first acceleration.

According to the door ejection mechanism of at least one embodiment of the present disclosure, when the door movement acceleration measured by the acceleration sensor is changed from the first acceleration, the door ejection mechanism is reset.

According to another aspect of the present disclosure, there is provided a vehicle door control system including a sensing device, a vehicle door control unit, and two or more vehicle door ejection mechanisms of any one of the above; when the front door is in a lock closing state and the rear door is in a lock opening state, if the front door is subjected to external pulling force, the sensing device generates a sensing signal and sends the sensing signal to the door control unit; after the door control unit receives the induction signal, the front door is controlled to be unlocked, and a door ejection mechanism of the front door is controlled to eject the front door.

According to the door control system of at least one embodiment of the present disclosure, the door control unit controls the front door to be unlocked and controls the door ejecting mechanism of the front door to eject the front door, determines the lock open/close state of the rear door, and controls the door ejecting mechanism of the rear door to eject the rear door if the rear door is in the lock open state.

According to the vehicle door control system of at least one embodiment of the present disclosure, the sensing device is preferably a light sensing device.

According to yet another aspect of the present disclosure, there is provided an automobile including the door ejection mechanism of any one of the above.

According to yet another aspect of the present disclosure, there is provided an automobile including the door control system of any one of the above.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

Fig. 1 is a schematic view of the closed and ajar states of the vehicle door.

Fig. 2 is a schematic view of the mounting position of the door ejection mechanism according to the present disclosure.

Fig. 3 is an overall structural schematic diagram of a door ejection mechanism according to one embodiment of the present disclosure.

Fig. 4 is an exploded structural schematic view of a door ejection mechanism according to one embodiment of the present disclosure.

Description of the reference numerals

10 vehicle door

100 door ejection mechanism

101 drive device

102 speed changing device

1021 planetary gear set

1022 transmission housing

103 executing device

1031 lead screw

1032 sliding block

1033 first cover

104 reversing gear set

1041 first gear

1042 second gear

105 reversing gear set housing

106 second cover

1061 push-out hole

1062 bolt

107 bearing.

Detailed Description

The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. Technical solutions of the present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Unless otherwise indicated, the illustrated exemplary embodiments/examples are to be understood as providing exemplary features of various details of some ways in which the technical concepts of the present disclosure may be practiced. Accordingly, unless otherwise indicated, features of the various embodiments may be additionally combined, separated, interchanged, and/or rearranged without departing from the technical concept of the present disclosure.

The use of cross-hatching and/or shading in the drawings is generally used to clarify the boundaries between adjacent components. As such, unless otherwise noted, the presence or absence of cross-hatching or shading does not convey or indicate any preference or requirement for a particular material, material property, size, proportion, commonality between the illustrated components and/or any other characteristic, attribute, property, etc., of a component. Further, in the drawings, the size and relative sizes of components may be exaggerated for clarity and/or descriptive purposes. While example embodiments may be practiced differently, the specific process sequence may be performed in a different order than that described. For example, two processes described consecutively may be performed substantially simultaneously or in reverse order to that described. In addition, like reference numerals denote like parts.

When an element is referred to as being "on" or "on," "connected to" or "coupled to" another element, it can be directly on, connected or coupled to the other element or intervening elements may be present. However, when an element is referred to as being "directly on," "directly connected to" or "directly coupled to" another element, there are no intervening elements present. For purposes of this disclosure, the term "connected" may refer to physically, electrically, etc., and may or may not have intermediate components.

For descriptive purposes, the present disclosure may use spatially relative terms such as "below … …," below … …, "" below … …, "" below, "" above … …, "" above, "" … …, "" higher, "and" side (e.g., "in the sidewall") to describe one component's relationship to another (other) component as illustrated in the figures. Spatially relative terms are intended to encompass different orientations of the device in use, operation, and/or manufacture in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below … …" can encompass both an orientation of "above" and "below". Further, the devices may be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, when the terms "comprises" and/or "comprising" and variations thereof are used in this specification, the presence of stated features, integers, steps, operations, elements, components and/or groups thereof are stated but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groups thereof. It is also noted that, as used herein, the terms "substantially," "about," and other similar terms are used as approximate terms and not as degree terms, and as such, are used to interpret inherent deviations in measured values, calculated values, and/or provided values that would be recognized by one of ordinary skill in the art.

Fig. 1 is a schematic view of the closed and ajar states of the vehicle door. Fig. 2 is a schematic view of the mounting position of the door ejection mechanism according to the present disclosure.

As shown in fig. 1, the left side view in fig. 1 is a closed state of the door 10, and the right side view is a slightly opened state of the door 10.

The vehicle door ejection mechanism 100 is matched with an electric release door lock for use, an external handle is not arranged on a vehicle door, and the degree of freedom of the appearance and the shape of the side surface of the vehicle door is improved. After the door is unlocked through electric control or a button, the door ejection mechanism 100 ejects the door to slightly open the door, so that a user can open and close the door by using the edge of the door, and the door can be opened and closed under the condition without an outer handle of the door.

As shown in fig. 2, the door ejecting mechanism 100 of the present disclosure, the door ejecting mechanism 100 is disposed between the inner and outer panels of the door, and may be disposed above or below the door lock, or may be disposed at a suitable position according to the inner space of the door of the vehicle.

After the door ejection mechanism 100 receives the door unlocking signal, the door ejection mechanism 100 ejects the door, so that the door is slightly opened.

The door liftout mechanism 100 of the present disclosure will be described in detail below.

Fig. 3 is an overall structural schematic diagram of the door ejection mechanism 100 according to one embodiment of the present disclosure. Fig. 4 is an exploded structural schematic view of a door ejection mechanism 100 according to an embodiment of the present disclosure.

As shown in fig. 3, the door ejection mechanism 100 includes: a drive device 101, the drive device 101 being capable of outputting a rotational motion; a transmission 102, the transmission 102 being connected to the drive 101, the transmission 102 reducing the rotational speed of the rotational motion output by the drive 101 and increasing the torque of the rotational motion; and an actuator 103, wherein the actuator 103 is connected to the transmission 102, the transmission 102 transmits the rotation to the actuator 103, and the actuator 103 ejects the door based on the rotation converted by the transmission 102.

The driving device 101 is a motor. The driving device 101 outputs a rotational motion through an output shaft.

As shown in fig. 3, the driving device 101 is preferably arranged in parallel with the actuating device 103.

As shown in fig. 4, the transmission 102 of the door ejector mechanism 100 preferably includes a planetary gear set 1021 and a transmission housing 1022, the planetary gear set 1021 being disposed within the transmission housing 1022.

Preferably, as shown in fig. 4, a driving shaft (not shown) of a driving device 101 of the door ejector mechanism 100 is connected to a sun gear of the planetary gear set 1021, so that the driving device 101 transmits a rotational motion to the planetary gear set 1021.

Preferably, the door ejecting mechanism 100 further includes a reversing gear set 104, the actuating device 103 is connected to the speed changing device 102 through the reversing gear set 104, the reversing gear set 104 reverses the rotation and transmits the rotation to the actuating device 103, and the actuating device 103 is arranged in parallel with the driving device 101.

As shown in fig. 4, preferably, the reversing gear set 1041 of the door ejection mechanism 100 includes a first gear 1041 and a second gear 1042, the first gear 1041 and the second gear 1042 are meshed with each other, and a central rotating shaft of an outer peripheral gear of the planetary gear set 1021 is connected with a central rotating shaft of the first gear 1041 of the reversing gear set 104, so that the planetary gear set 104 transmits a rotation motion to the reversing gear set 104.

Specifically, the planetary gear set 104 transmits the rotation to the first gear 1041 of the reversing gear set 104, the first gear 1041 transmits the rotation to the second gear 1042, and the second gear 1042 transmits the rotation to the actuator 103.

According to a preferred embodiment of the present disclosure, as shown in fig. 4, the actuator 103 of the door liftout mechanism 100 includes a lead screw 1031 and a slider 1032, one end of the lead screw 1031 is connected with the central rotation hole of the second gear 1042 so that the rotation action can be transmitted to the actuator 103 by the reversing gear set 104, the other end of the lead screw 1031 is fixedly connected with the slider 1032 through a bearing 107 so that the slider 1032 can slide around the lead screw 1031, and the slider 1032 can be driven by the lead screw 1031.

Preferably, the slider 1032 has a receiving structure that receives the bearing 107. The bearing 107 is fixed in a receiving structure of the slider 1032.

Preferably, as shown in fig. 4, the actuator 103 of the door ejecting mechanism 100 further includes a first housing 1033 and a second housing 106, the lead screw 1031 and the slider 1032 are disposed in the first housing 1033, the second housing 106 is provided with an ejecting hole 1061, and the slider 1032 can be driven by the lead screw 1031 to eject from the ejecting hole 1061 of the second housing 106 to eject the door.

Preferably, the first housing 1033 provides a seal for the lead screw 1031 and the slide 1032.

Preferably, the second housing 106 further includes two bolts 1062, and the two bolts 1062 are symmetrically disposed about the ejection hole 1061 for mounting the actuator 103 on the inner panel of the vehicle door.

Preferably, the door ejection mechanism 100 further includes a reversing gear set housing 105, the reversing gear set 104 is disposed in the reversing gear set housing 105, a first end of the first housing 1033 is fixedly connected to the reversing gear set housing 105, and a second end of the first housing 1033 is fixedly connected to the second housing 106.

The transmission housing 1022 is fixedly connected to the reversing gear set housing 105.

The transmission housing 1022, the first housing 1033, and the second housing 106 are disposed on the same side of the reversing gear set housing 105.

The number of the circumferential gears of the planetary gear set 1021 of the door ejection mechanism 100 is three, the circumferential gears are uniformly arranged on the periphery of the sun gear of the planetary gear set 1021, and the diameter of each circumferential gear is larger than that of the sun gear.

Preferably, the door ejection mechanism 100 automatically pushes the door open by a first predetermined angle when the door lock is released. The first predetermined angle is the angle at which the door is ajar.

Specifically, when the door lock of the vehicle door is released, the vehicle door control unit (not shown) drives the driving device 101 of the door ejection mechanism 100 to operate, the torque output by the driving device, such as a motor, is converted into a low-speed high-torque by the planetary gear set 1021 in the transmission housing 1022, and then drives the lead screw 1031 in the actuating device 103 to operate by the reversing gear set 104, wherein one end of the lead screw 1031 is engaged with the reversing gear set 104, and the other end is fixed in the first housing 1033 by the bearing 107. The slider 1032 connected to the lead screw 1031 slides around the lead screw 1031 to push out the eject mechanism, thereby pushing the door open.

In order to prevent dust, water, etc. from entering the actuator 103 and affecting the life of the ejection mechanism 100, the reversing gear set housing 105 protects the reversing gear set 104 from sealing, and the first housing 1033 protects the seal of the lead screw 1031 and the slider 1032, etc. The ejector mechanism 100 is attached to the door inner panel by a bolt 1062 fixed to the second housing 106.

According to a preferred embodiment of the present disclosure, the door ejection mechanism 100 further includes an acceleration sensor for measuring an acceleration of the door movement, and during the door ejection mechanism 100 pushes the door open to the first predetermined angle (i.e., during the door slightly opens), the acceleration of the door movement measured by the acceleration sensor in this process is the first acceleration.

Preferably, the door eject mechanism 100 is reset when the door movement acceleration measured by the acceleration sensor is changed from the first acceleration.

Specifically, the door 10 is pushed to a first predetermined angle, so that the passenger can conveniently open the door by holding the edge of the door, when the passenger pulls the door to move, the acceleration sensor senses the movement of the door, the door control unit (not shown) drives the driving device 101, such as a motor, of the ejection mechanism 100 again, and the motor works in the reverse direction, so that the ejection mechanism 100 is reset, and the passenger can conveniently and smoothly close the door when closing the door.

According to one embodiment of the present disclosure, a vehicle door control system includes a sensing device, a vehicle door control unit, and two or more of the above-described door ejection mechanisms 100.

When the front door is in a lock closing state and the rear door is in a lock opening state, if the front door is subjected to external pulling force, the sensing device generates a sensing signal and sends the sensing signal to the door control unit.

After the door control unit receives the induction signal, the front door is controlled to be unlocked, and a door ejection mechanism of the front door is controlled to eject the front door.

Preferably, the door control unit determines the lock open/close state of the back door while controlling the front door to be unlocked and controlling the door ejecting mechanism of the front door to eject the front door, and controls the door ejecting mechanism of the back door to eject the back door if the back door is in the lock open state.

Specifically, since the door of the automobile has no outer handle, the passenger needs to hold the door edge to open and close the door. If the rear door is in the lock-open state, the front door is in the lock-close state, and the passenger tries to open the front door, because there is no outer handle, the passenger has the misoperation of directly pulling the front door edge to open the door. When the hands of a passenger reach the edge of the front door and cannot open the front door by trying to open the front door, another passenger closes the rear door and can clamp the hands of the passenger trying to open the front door, causing injury.

Therefore, for the vehicle door 10 using the ejection mechanism 100, the technical solution of the vehicle door control system of the present embodiment ensures that when the rear door is in the open state (i.e., when the rear door is open), and when the passenger tries to open the front door by hand, the rear door in the open state cannot be completely closed, so that a sufficient front-rear door gap is ensured, and injury is avoided.

For example, a sensing device is added at the most frequently used edge position of a passenger at the B column of the front door, the front door is in a closed state, when the passenger tries to pull the edge of the door, the sensing device at the edge of the front door is triggered, the door control unit receives a signal and controls the unlocking and ejection of the front door, meanwhile, the locking and opening states of the rear door are judged, and if the rear door is in a locking and opening state, the ejection mechanism of the rear door is ejected, so that the rear door is prevented from being completely closed.

Preferably, the sensing device is a light sensing device.

The position of the sensing device is not limited to guiding the passenger to hold a specific position by lighting, but also comprises guiding the passenger to hold the specific position by a scheme such as modeling design or color attraction, and the like, and also comprises a scheme of adding a trigger switch on the whole front vehicle door B column.

The vehicle door ejection mechanism can be used for the electric door of the automobile, when the electric door is frozen at low temperature and cannot be opened, the vehicle door ejection mechanism can play a role in breaking ice, and the electric door is opened after the vehicle door is ejected.

According to one embodiment of the present disclosure, an automobile includes the door ejection mechanism 100 of any of the above-described.

According to one embodiment of the present disclosure, an automobile includes the door control system of any one of the above-described.

In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present disclosure, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise.

It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.

Claims (20)

1. A vehicle door ejection mechanism, comprising:

a drive device capable of outputting a rotational motion;

a transmission device connected to the drive device, the transmission device reducing a rotational speed of a rotational motion output by the drive device and increasing a torque of the rotational motion; and

and the executing device is connected with the speed changing device, the speed changing device transmits the rotating action to the executing device, and the executing device ejects the vehicle door based on the rotating action converted by the speed changing device.

2. A door ejection mechanism according to claim 1, wherein the drive means is a motor.

3. A vehicle door ejection mechanism as claimed in claim 1, wherein the transmission includes a planetary gear set and a transmission housing, the planetary gear set being disposed within the transmission housing.

4. A door ejection mechanism according to claim 3, wherein a drive shaft of the drive device is connected to a sun gear of the planetary gear set so that the drive device transmits rotational motion to the planetary gear set.

5. A vehicle door ejection mechanism as claimed in claim 3 or 4, further comprising a reversing gear set, wherein the actuating device is connected with the speed changing device through the reversing gear set, the reversing gear set reverses the rotation and transmits the rotation to the actuating device, and the actuating device is arranged in parallel with the driving device.

6. A door ejection mechanism according to claim 5, wherein the reversing gear set includes a first gear and a second gear, the first gear and the second gear are meshed with each other, and a central rotating shaft of an outer peripheral gear of the planetary gear set is connected with a central rotating shaft of a first gear of the reversing gear set, so that the planetary gear set transmits the rotational motion to the reversing gear set.

7. A vehicle door ejection mechanism according to claim 6, wherein the actuator includes a lead screw and a slider, one end of the lead screw is connected to a central rotation hole of the second gear so that the rotation can be transmitted to the actuator by the reversing gear set, the other end of the lead screw is fixedly connected to the slider through a bearing so that the slider can slide around the lead screw, and the slider can be driven by the lead screw.

8. A vehicle door ejection mechanism as claimed in claim 7, wherein the actuator further includes a first housing and a second housing, the lead screw and the slider being disposed within the first housing, the second housing being provided with an ejection hole, the slider being capable of being driven by the lead screw to be ejected from the ejection hole of the second housing to eject the vehicle door.

9. A door ejection mechanism as claimed in claim 8, wherein the first housing provides a seal for the lead screw and the slide block.

10. A vehicle door ejection mechanism as claimed in claim 8, wherein the second housing further includes two bolts symmetrically disposed about the ejection hole for mounting the actuator on an inner panel of the vehicle door.

11. The door ejection mechanism according to claim 8, further comprising a reversing gear set housing, wherein the reversing gear set is disposed within the reversing gear set housing, a first end of the first housing is fixedly connected to the reversing gear set housing, and a second end of the first housing is fixedly connected to the second housing.

12. The door ejection mechanism according to claim 4, wherein the number of the peripheral gears of the planetary gear set is three, the peripheral gears are uniformly arranged on the periphery of the sun gear of the planetary gear set, and the diameter of the peripheral gears is larger than that of the sun gear.

13. A door ejection mechanism according to any one of claims 1 to 4, wherein the door ejection mechanism automatically pushes the door open by a first predetermined angle when the door lock is released.

14. A door ejection mechanism according to any one of claims 1 to 4, further comprising an acceleration sensor for measuring an acceleration of the door movement, the acceleration of the door movement measured by the acceleration sensor during the door ejection mechanism pushes the door open to the first predetermined angle being a first acceleration.

15. A door ejection mechanism according to claim 14, wherein the door ejection mechanism is reset when the acceleration of the door movement measured by the acceleration sensor changes from a first acceleration.

16. A vehicle door control system comprising a sensing device, a vehicle door control unit, and two or more vehicle door ejection mechanisms of any one of claims 1 to 15;

when the front door is in a lock closing state and the rear door is in a lock opening state, if the front door is subjected to external pulling force, the sensing device generates a sensing signal and sends the sensing signal to the door control unit;

and after the vehicle door control unit receives the induction signal, the vehicle door control unit controls the front vehicle door to be unlocked and controls a vehicle door ejection mechanism of the front vehicle door to eject the front vehicle door.

17. The vehicle door control system according to claim 16, wherein the door control unit determines the lock open/close state of the back door while controlling the front door to be unlocked and controlling the door ejecting mechanism of the front door to eject the front door, and controls the door ejecting mechanism of the back door to eject the back door if the back door is in the lock open state.

18. A vehicle door control system as claimed in claim 16 or 17, wherein the sensing device is a light sensing device.

19. An automobile, characterized by comprising the door ejection mechanism according to any one of claims 1 to 15.

20. An automobile, characterized by comprising the door control system according to any one of claims 16 to 18.

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