阅读说明：本技术 一种汽车自吸合门锁及其控制方法 (Automobile self-suction closing door lock and control method thereof ) 是由 刘晨 王雁 周大光 于 2021-08-30 设计创作，主要内容包括：本发明属于汽车门系统技术领域,具体涉及一种汽车自吸合门锁及其控制方法；其中止动爪和卡板从左至右依次设置在锁基板上,且止动爪一端通过转轴连接在锁基板上,另一端与解锁电机的输出轴连接,卡板的一端通过转轴连接在锁基板上,另一端与吸合电机的输出轴连接；止动爪上设有从下往上设置的三个止动槽,从下往上的三个止动槽内依次装有半锁微动开关、全锁微动开关和过锁微动开关；卡板上设有止动凸起,该止动凸起配合连接在止动爪的某个止动槽内；通过锁的结构及控制方法,解决了现有汽车车门开闭系统功能之间的矛盾,共同完成门系统的开启及关闭,保证司乘安全。(The invention belongs to the technical field of automobile door systems, and particularly relates to an automobile self-closing door lock and a control method thereof; the locking device comprises a locking base plate, a locking claw, a clamping plate, a rotating shaft, an unlocking motor, a locking motor, a pull-in motor, a pull-out motor, a pull-in motor and a pull-out motor, wherein the locking claw and the clamping plate are sequentially arranged on the locking base plate from left to right, one end of the locking claw is connected to the locking base plate through the rotating shaft, the other end of the locking claw is connected with an output shaft of the unlocking motor, one end of the clamping plate is connected to the locking base plate through the rotating shaft, and the other end of the clamping plate is connected with an output shaft of the pull-in motor; the locking claw is provided with three locking grooves from bottom to top, and a half-locking microswitch, a full-locking microswitch and an over-locking microswitch are sequentially arranged in the three locking grooves from bottom to top; the clamping plate is provided with a stop protrusion which is connected in a certain stop groove of the stop pawl in a matching way; through the structure of the lock and the control method, the contradiction between the functions of the existing automobile door opening and closing system is solved, the opening and closing of the door system are completed together, and the safety of drivers and passengers is ensured.)

1. A self-closing door lock of an automobile is characterized by comprising an attraction motor, an unlocking motor, a lock base plate (1), a locking pawl (2) and a clamping plate (3), wherein the locking pawl (2) and the clamping plate (3) are sequentially arranged on the lock base plate (1) from left to right, one end of the locking pawl (2) is connected to the lock base plate (1) through a rotating shaft, the other end of the locking pawl is connected with an output shaft of the unlocking motor, one end of the clamping plate (3) is connected to the lock base plate (1) through a rotating shaft, and the other end of the clamping plate is connected with the output shaft of the attraction motor;

the locking claw (2) is provided with three locking grooves from bottom to top, and a half-locking microswitch (4), a full-locking microswitch (5) and an over-locking microswitch (6) are sequentially arranged in the three locking grooves from bottom to top;

the catch plate (3) is provided with a stop protrusion (31), and the stop protrusion (31) is matched and connected in a certain stop groove of the stop pawl (2) or not connected in any stop groove.

2. The self-closing door lock of an automobile according to claim 1, characterized in that the three locking grooves on the locking pawl (2) are respectively a first locking groove (21), a second locking groove (22) and a third locking groove (23) which are arranged from bottom to top, wherein the first locking groove (21), the second locking groove (22) and the third locking groove (23) are respectively provided with a half-locking microswitch (4), a full-locking microswitch (5) and an over-locking microswitch (6).

3. The self-closing door lock of an automobile according to claim 2, wherein the suction motor, the unlocking motor, the half-lock microswitch (4), the full-lock microswitch (5) and the over-lock microswitch (6) are respectively connected with an ECU in the automobile through wires.

4. A control method of a self-closing door lock of an automobile is characterized by comprising the following steps:

controlling the position of a door lock switch based on a signal of pressing the door switch received by an in-vehicle ECU (electronic control Unit) by combining a vehicle speed signal and the current state of a door lock;

when the ECU in the vehicle does not receive a signal of pressing a door switch, controlling the locking position of a door lock according to the vehicle speed;

and when the ECU in the automobile receives a signal of pressing the door switch, the locking position of the door lock at the next moment is controlled according to the current position of the door lock.

5. The control method of the self-closing door lock of the automobile according to claim 4, characterized in that:

when the ECU in the vehicle does not receive a signal of pressing a door switch, the ECU receives a signal of a vehicle speed sensor and displays that the vehicle speed is zero: an ECU in the automobile controls the self-closing door lock of the automobile to be in a full locking position or a half locking position;

when the ECU in the vehicle does not receive a signal of pressing a door switch, the ECU receives a signal of a vehicle speed sensor and displays that the vehicle speed is not zero: an ECU in the automobile controls the self-closing door lock of the automobile to be in an over-locking position;

when the ECU in the vehicle receives a door opening signal for pressing a door switch, the ECU in the vehicle does not need to consider the signal received by the vehicle speed sensor, and the control is carried out according to the following conditions:

when the self-locking door lock of the automobile is in the over-locking position, the ECU in the automobile controls the unlocking motor to have no action;

when the self-suction door lock of the automobile is positioned at other positions except the over-locking position, an ECU (electronic control unit) in the automobile controls an unlocking motor to act, so that each microswitch is not triggered, and then an electric power-assisted mechanism in an automobile door system is controlled to open the automobile door;

when the ECU in the vehicle receives a door closing signal for pressing a door switch, the ECU in the vehicle does not need to consider the signal received by the vehicle speed sensor, and the control is carried out according to the following conditions:

the ECU in the vehicle controls an electric power-assisted mechanism in the vehicle door system to close the vehicle door, and simultaneously the ECU in the vehicle controls the suction motor to act until the half-lock microswitch 4 is triggered.

6. The method according to claim 5, wherein when the ECU receives a signal from the vehicle speed sensor indicating that the vehicle speed is zero, the ECU activates the door switch when the ECU receives no signal from the door switch:

if the over-locking microswitch (6) is triggered, the stop lug (31) of the clamping plate (3) is connected in a third stop groove (23) in a matching mode, at the moment, an ECU (electronic control unit) in the vehicle controls the unlocking motor to act, and then the stop pawl (2) is controlled to rotate until the full-locking microswitch (5) is triggered, the stop lug (31) of the clamping plate (3) is connected in a second stop groove (22) in a matching mode, and the ECU in the vehicle controls the unlocking motor to stop acting;

if the over-locking microswitch (6) is not triggered, no action is taken.

7. The method according to claim 5, wherein when the ECU receives a signal from the vehicle speed sensor indicating that the vehicle speed is not zero, the ECU determines that the vehicle speed is not zero when the ECU receives the signal from the vehicle speed sensor:

if the full-locking microswitch (5) or the half-locking microswitch (4) is triggered, the stop protrusion (31) of the clamping plate (3) is connected in a second stop groove (22) or a first stop groove (21) in a matching manner, at the moment, the ECU in the vehicle controls the attraction motor to act, so that the clamping plate (3) is controlled to rotate until the over-locking microswitch (6) is triggered, the stop protrusion (31) of the clamping plate (3) is connected in a third stop groove (23) in a matching manner, and the ECU in the vehicle controls the attraction motor to stop acting;

if the full-locking microswitch (5) and the half-locking microswitch (4) are not triggered, no action is taken.

8. The method according to claim 5, wherein when the in-vehicle ECU receives a door opening signal for pressing a door switch, the in-vehicle ECU receives a signal from a vehicle speed sensor, and the method performs the following control:

if the over-locking microswitch (6) is triggered, the vehicle speed is not zero at the moment, and no action is performed;

if the half-locking microswitch (4) or the full-locking microswitch (5) is triggered, the speed is zero at the moment, the ECU in the automobile controls the unlocking motor to act, and then the locking pawl (2) is controlled to rotate until all the microswitches are not triggered, and at the moment, the ECU in the automobile controls the electric power-assisted mechanism in the automobile door system to open the automobile door.

9. The method according to claim 5, wherein when the ECU receives a door closing signal for pressing the door switch, the ECU performs the following control without considering the signal of the vehicle speed sensor received by the ECU:

the ECU controls an electric power-assisted mechanism in the vehicle door system to close the vehicle door, the ECU controls the attraction motor to act simultaneously in the vehicle, then the clamping plate (3) is controlled to rotate until the half-lock microswitch (4) is triggered, the stop protrusion (31) of the clamping plate (3) is connected in the first stop groove (21) in a matching manner, and the ECU controls the attraction motor to stop acting in the vehicle.

Technical Field

The invention belongs to the technical field of automobile door systems, and particularly relates to an automobile self-closing door lock and a control method thereof.

Background

The automotive door system has two major functions: the method comprises the steps that firstly, the automobile door lock and the automobile door retainer are kept in a closed position to protect a passenger compartment or an engine compartment; and secondly, the automobile door can rotate (open or close) around the automobile door retainer so as to meet the requirements of passengers for getting on and off, taking and placing luggage, maintaining an engine room and the like. Because the opening and closing system can not be in complete rigid connection with the automobile body, the opening and closing system moves relative to the automobile body under extreme working conditions, and potential safety hazards exist.

Disclosure of Invention

In order to overcome the problems, the invention provides a self-closing door lock of an automobile and a control method thereof, which are suitable for an automobile door system with an electric closing function and are matched with an electric power-assisted mechanism of the door system to jointly complete the opening and closing of the door system.

A self-closing door lock of an automobile comprises an attraction motor, an unlocking motor, a lock base plate 1, a locking claw 2 and a clamping plate 3, wherein the locking claw 2 and the clamping plate 3 are sequentially arranged on the lock base plate 1 from left to right, one end of the locking claw 2 is connected to the lock base plate 1 through a rotating shaft, the other end of the locking claw is connected with an output shaft of the unlocking motor, one end of the clamping plate 3 is connected to the lock base plate 1 through a rotating shaft, and the other end of the clamping plate 3 is connected with an output shaft of the attraction motor;

the locking claw 2 is provided with three locking grooves from bottom to top, and a half-locking microswitch 4, a full-locking microswitch 5 and an over-locking microswitch 6 are sequentially arranged in the three locking grooves from bottom to top;

the catch plate 3 is provided with a stop projection 31, and the stop projection 31 is matched and connected in a certain stop groove of the stop pawl 2 or not connected in any stop groove.

The three locking grooves on the locking claw 2 are respectively a first locking groove 21, a second locking groove 22 and a third locking groove 23 which are arranged from bottom to top, wherein the first locking groove 21, the second locking groove 22 and the third locking groove 23 are respectively provided with a half-locking microswitch 4, a full-locking microswitch 5 and an over-locking microswitch 6.

The suction motor, the unlocking motor, the half-lock microswitch 4, the full-lock microswitch 5 and the over-lock microswitch 6 are respectively connected with an ECU in the vehicle through leads.

The control method of the self-closing door lock of the automobile comprises the following steps:

controlling the position of a door lock switch based on a signal of pressing the door switch received by an in-vehicle ECU (electronic control Unit) by combining a vehicle speed signal and the current state of a door lock;

when the ECU in the vehicle does not receive a signal of pressing a door switch, controlling the locking position of a door lock according to the vehicle speed;

and when the ECU in the automobile receives a signal of pressing the door switch, the locking position of the door lock at the next moment is controlled according to the current position of the door lock.

Specifically, the method comprises the following steps: when the ECU in the vehicle does not receive a signal of pressing a door switch, the ECU receives a signal of a vehicle speed sensor and displays that the vehicle speed is zero: an ECU in the automobile controls the self-closing door lock of the automobile to be in a full locking position or a half locking position;

when the ECU in the vehicle does not receive a signal of pressing a door switch, the ECU receives a signal of a vehicle speed sensor and displays that the vehicle speed is not zero: an ECU in the automobile controls the self-closing door lock of the automobile to be in an over-locking position;

when the ECU in the vehicle receives a door opening signal for pressing a door switch, the ECU in the vehicle does not need to consider the signal received by the vehicle speed sensor, and the control is carried out according to the following conditions:

when the self-locking door lock of the automobile is in the over-locking position, the ECU in the automobile controls the unlocking motor to have no action;

when the self-suction door lock of the automobile is positioned at other positions except the over-locking position, an ECU (electronic control unit) in the automobile controls an unlocking motor to act, so that each microswitch is not triggered, and then an electric power-assisted mechanism in an automobile door system is controlled to open the automobile door;

when the ECU in the vehicle receives a door closing signal for pressing a door switch, the ECU in the vehicle does not need to consider the signal received by the vehicle speed sensor, and the control is carried out according to the following conditions:

the ECU in the vehicle controls an electric power-assisted mechanism in the vehicle door system to close the vehicle door, and simultaneously the ECU in the vehicle controls the suction motor to act until the half-lock microswitch 4 is triggered.

More specifically: under the condition that the ECU in the automobile does not receive a signal of pressing a door switch, when the ECU in the automobile receives a signal of a vehicle speed sensor, the vehicle speed is zero:

if the over-locking microswitch 6 is triggered, the stop protrusion 31 of the card plate 3 is connected in the third stop groove 23 in a matching manner, at the moment, the ECU in the vehicle controls the unlocking motor to act, and further controls the stop pawl 2 to rotate until the full-locking microswitch 5 is triggered, the stop protrusion 31 of the card plate 3 is connected in the second stop groove 22 in a matching manner, and the ECU in the vehicle controls the unlocking motor to stop acting;

if the over-locking microswitch 6 is not triggered, no action is taken.

When the ECU in the vehicle receives a signal of a vehicle speed sensor to display that the vehicle speed is not zero under the condition that the ECU in the vehicle does not receive a signal of pressing a vehicle door switch:

if the full-locking microswitch 5 or the half-locking microswitch 4 is triggered, the stop protrusion 31 of the clamping plate 3 is connected in the second stop groove 22 or the first stop groove 21 in a matching way, at the moment, the ECU in the vehicle controls the suction motor to act, and then the clamping plate 3 is controlled to rotate until the over-locking microswitch 6 is triggered, the stop protrusion 31 of the clamping plate 3 is connected in the third stop groove 23 in a matching way, and the ECU in the vehicle controls the suction motor to stop acting;

if the full-lock microswitch 5 and the half-lock microswitch 4 are not triggered, no action is performed.

When the ECU in the vehicle receives a door opening signal for pressing a door switch, the ECU in the vehicle does not need to consider the signal received by the vehicle speed sensor, and the control is carried out according to the following conditions:

if the over-locking microswitch 6 is triggered, the vehicle speed is not zero at the moment, and no action is taken;

if the half-locking microswitch 4 or the full-locking microswitch 5 is triggered, the speed of the vehicle is zero at the moment, the ECU in the vehicle controls the unlocking motor to act, and then the locking pawl 2 is controlled to rotate until all the microswitches are not triggered, and the ECU in the vehicle controls the electric power-assisted mechanism in the vehicle door system to open the vehicle door at the moment.

When the ECU in the vehicle receives a door closing signal for pressing a door switch, the ECU in the vehicle does not need to consider the signal received by the vehicle speed sensor, and the control is carried out according to the following conditions:

the ECU controls an electric power-assisted mechanism in the vehicle door system to close the vehicle door, the ECU controls the attraction motor to act simultaneously in the vehicle, then the clamping plate 3 is controlled to rotate until the half-lock microswitch 4 is triggered, the stop protrusion 31 of the clamping plate 3 is connected in the first stop groove 21 in a matched mode, and the ECU controls the attraction motor to stop acting in the vehicle.

The invention has the beneficial effects that:

the automotive door system has two major functions: the method comprises the steps that firstly, the automobile door lock and the automobile door retainer are kept in a closed position to protect a passenger compartment or an engine compartment; the automobile door can rotate (open or close) around the automobile door retainer so as to meet the requirements of passengers for getting up and down, taking and placing luggage, cabin maintenance and the like; the invention makes the sealing counter forces required by the two major functions independent through the structure and logic of the lock, solves the contradiction between the two major functions of the opening and closing system and ensures the safety of driver and passenger.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

Fig. 1 is a schematic view of a self-closing door lock of an automobile according to the present invention.

Fig. 2 is a schematic diagram of a half-locked state of the self-closing door lock of the invention.

Fig. 3 is a schematic view of the self-closing door lock of the present invention in a fully locked state.

Fig. 4 is a schematic view of the self-closing door lock of the present invention in an over-locked state.

Wherein: the locking mechanism comprises a lock base plate 1, a locking pawl 2, a first locking groove 21, a second locking groove 22, a third locking groove 23, a locking plate 3, a locking protrusion 31, a half-locking microswitch 4, a full-locking microswitch 5 and an over-locking microswitch 6.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1-4, a self-closing door lock for an automobile comprises an attraction motor, an unlocking motor, a lock substrate 1, a locking pawl 2 and a clamping plate 3, wherein the locking pawl 2 and the clamping plate 3 are sequentially arranged on the lock substrate 1 from left to right, one end of the locking pawl 2 is connected to the lock substrate 1 through a rotating shaft, the other end of the locking pawl 2 is connected to an output shaft of the unlocking motor, one end of the clamping plate 3 is connected to the lock substrate 1 through a rotating shaft, and the other end of the clamping plate 3 is connected to an output shaft of the attraction motor;

the locking claw 2 is provided with three locking grooves from bottom to top, and a half-locking microswitch 4, a full-locking microswitch 5 and an over-locking microswitch 6 are sequentially arranged in the three locking grooves from bottom to top;

the catch plate 3 is provided with a stop projection 31, and the stop projection 31 is matched and connected in a certain stop groove of the stop pawl 2 or not connected in any stop groove.

The three locking grooves on the locking claw 2 are respectively a first locking groove 21, a second locking groove 22 and a third locking groove 23 which are arranged from bottom to top, wherein the first locking groove 21, the second locking groove 22 and the third locking groove 23 are respectively provided with a half-locking microswitch 4, a full-locking microswitch 5 and an over-locking microswitch 6.

The micro-gap switch that sets up on each locking groove, ECU can judge the position that lock and door were located through discernment micro-gap switch's signal, specifically: the half-locking microswitch 4 indicates that the door lock is in a half-locking position; the full-locking microswitch 5 indicates that the door lock is in a full-locking position; the over-lock microswitch 6 indicates that the door lock is in the over-locked position.

Accordingly, the catch plate 3 is provided with a locking projection which ensures a secure locking by interengaging with a locking groove in the locking pawl 2.

Further, when the locking projection of the card plate 3 is engaged with the first locking groove 21 of the locking claw 2, the half-locking microswitch 4 is triggered, when the locking projection of the card plate 3 is engaged with the second locking groove 22 of the locking claw 2, the full-locking microswitch 5 is triggered, and when the locking projection of the card plate 3 is engaged with the third locking groove 23 of the locking claw 2, the over-locking microswitch 6 is triggered.

Wherein the half locking position: when the door is not closed completely, the lock body and the lock catch (or the stop block) are at the meshing position, so as to prevent the full locking from failing.

And (3) full locking position: when the door is completely closed, the lock body and the lock catch (or the stop block) are in the engaged position. The door system is now in the theoretical design position.

An over-locking position: when the vehicle door is over-closed, the lock body and the lock catch (or the stop block) are at the meshing position. The door system is in an over-closed position at this time.

When the automobile self-locking door lock is controlled, a vehicle speed sensor signal is added into an input signal, and the method comprises the following steps:

the suction motor, the unlocking motor, the half-lock microswitch 4, the full-lock microswitch 5 and the over-lock microswitch 6 are respectively connected with an in-vehicle ECU through leads, signals are input into the in-vehicle ECU, and the in-vehicle ECU can control the suction motor and the unlocking motor to be turned on and off;

when the ECU in the vehicle receives a signal of a vehicle speed sensor to display that the vehicle speed is as follows under the condition that the ECU in the vehicle does not receive a signal that a passenger presses a door switch:

if the over-locking microswitch 6 is triggered, the over-locking microswitch 6 feeds back a signal to the in-vehicle ECU, which indicates that the stop protrusion 31 of the clamping plate 3 is connected in the third stop groove 23 in a matching manner, at the moment, the in-vehicle ECU controls the unlocking motor to act, and further controls the stop pawl 2 to rotate until the full-locking microswitch 5 is triggered, which indicates that the full-locking microswitch 5 feeds back a signal to the in-vehicle ECU, which indicates that the stop protrusion 31 of the clamping plate 3 is connected in the second stop groove 22 in a matching manner, and the in-vehicle ECU controls the unlocking motor to stop acting; at the moment, the locking claw 2 can be continuously controlled to rotate until the half-locking microswitch 4 is triggered; at the moment, the door lock is kept at a full locking position, the sound quality is good when the door lock is opened, and meanwhile, the appearance gap step difference meets the DTS requirement.

If the over-locking microswitch 6 is not triggered, the over-locking microswitch 6 does not feed back a signal to an ECU in the vehicle, and no action is performed;

when the ECU in the vehicle receives a signal of a vehicle speed sensor to display that the vehicle speed is not zero under the condition that the ECU in the vehicle does not receive a signal that a passenger presses a door switch:

if the full-locking microswitch 5 or the half-locking microswitch 4 is triggered, the full-locking microswitch 5 or the half-locking microswitch 4 feeds back a signal to the in-vehicle ECU, which indicates that the stop protrusion 31 of the card plate 3 is connected in the second stop groove 22 or the first stop groove 21 in a matching manner, the in-vehicle ECU controls the attraction motor to act, and then controls the card plate 3 to rotate until the over-locking microswitch 6 is triggered, i.e. the over-locking microswitch 6 feeds back a signal to the in-vehicle ECU, which indicates that the stop protrusion 31 of the card plate 3 is connected in the third stop groove 23 in a matching manner, and the in-vehicle ECU controls the attraction motor to stop acting; at this moment, the door lock is kept at the over-locking position, and the door system is stable when the vehicle moves.

If the full-lock microswitch 5 and the half-lock microswitch 4 are not triggered, the full-lock microswitch 5 and the half-lock microswitch 4 do not feed back signals to the ECU in the vehicle, and no action is performed;

when the ECU in the vehicle receives a door opening signal that a passenger presses a door switch, the ECU in the vehicle does not need to consider the signal received by the vehicle speed sensor, and the control is carried out according to the following conditions:

if the over-lock microswitch 6 is triggered, the over-lock microswitch 6 feeds back a signal to an ECU in the vehicle, which shows that the vehicle speed is not zero and no action is available;

if the half-lock microswitch 4 or the full-lock microswitch 5 is triggered, the half-lock microswitch 4 or the full-lock microswitch 5 feeds back a signal to an in-vehicle ECU (electronic control Unit), which indicates that the vehicle speed is zero at the moment, the in-vehicle ECU controls an unlocking motor to act, and then controls the locking pawl 2 to rotate until all the microswitches are not triggered, and the in-vehicle ECU controls an electric power-assisted mechanism in a vehicle door system to open a vehicle door at the moment;

when the ECU in the vehicle receives a door closing signal that a passenger presses a door switch, the ECU in the vehicle does not need to consider the signal received by the vehicle speed sensor, and the control is carried out according to the following conditions:

the ECU controls an electric power-assisted mechanism in the vehicle door system to close the vehicle door, the ECU controls the attraction motor to act simultaneously in the vehicle, the clamping plate 3 is controlled to rotate until the half-lock microswitch 4 is triggered, namely, the half-lock microswitch 4 feeds back a signal to the ECU in the vehicle, the stop protrusion 31 of the clamping plate 3 is connected in the first stop groove 21 in a matched mode, and the ECU controls the attraction motor to stop acting.

Wherein the process that the electric power-assisted mechanism in the ECU control door system closes the door in the car is: the electric power-assisted mechanism closes the automobile door system to a half-locking position, and at the moment, the suction motor of the self-suction lock starts to work to drive the lock hook to rotate until the full-locking position is reached, so that electric closing is completed. If the vehicle is still, the vehicle is kept at the full locking position, and if the vehicle moves or changes from the still state to the moving state, the attraction motor continues to work until the vehicle passes through the locking position.

The process that the electric power-assisted mechanism in the vehicle door system is controlled by the ECU in the vehicle to open the vehicle door is as follows: : if the vehicle moves, the door lock does not act; if the vehicle is changed from moving to static, the unlocking motor drives the locking pawl to rotate, the clamping plate is released, and the vehicle is unlocked from the over-locking position to the full-locking position; if the vehicle is static, the unlocking motor drives the locking pawl to rotate, the clamping plate is released, and the vehicle is unlocked from the full-locking position.

The electric control principle that an electric power-assisted mechanism in the vehicle door system is controlled by the ECU in the vehicle to open or close the vehicle door is as follows:

the electric control system comprises a self-suction door lock-1, an ECU (electronic control Unit) in the vehicle, a vehicle speed sensor, an electric power-assisted mechanism and a door switch. The electric power-assisted mechanism is matched with the vehicle door lock to realize electric opening and closing of the vehicle door.

Wherein, the signals of the vehicle speed sensor and the door switch are external input signals of the system; a half-locking microswitch 4, a full-locking microswitch 5 and an over-locking microswitch 6 are internal control signals; the ECU in the vehicle is a controller; the electric power-assisted device comprises a suction motor 11, an unlocking motor 12 and an electric power-assisted mechanism which is an actuating mechanism.

The automotive door system has two major functions: the method comprises the steps that firstly, the automobile door lock and the automobile door retainer are kept in a closed position to protect a passenger compartment or an engine compartment; and secondly, the automobile door can rotate (open or close) around the automobile door retainer so as to meet the requirements of passengers for getting on and off, taking and placing luggage, maintaining an engine room and the like. Because the opening and closing system cannot be in complete rigid connection with the vehicle body, the opening and closing system moves relative to the vehicle body under extreme working conditions, and in order to realize the first function, the sealing counter force of the opening and closing system needs to be increased as much as possible so as to reduce the relative movement between the opening and closing system and the vehicle body; in order to realize the second function, the sealing counter force needs to be reduced as much as possible to prevent abnormal sound caused by the release of the sealing counter force at the moment of opening due to overlarge sealing counter force. The invention realizes the two functions by different sealing counter forces, and the sealing counter forces required by the two functions are mutually independent through the structure and logic of the lock, thereby solving the contradiction between the two functions of the opening and closing system.

Although the preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, the scope of the present invention is not limited to the specific details of the above embodiments, and any person skilled in the art can substitute or change the technical solution of the present invention and its inventive concept within the technical scope of the present invention, and these simple modifications belong to the scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.