KR20180132204A - Smart and automatic door apparatus for vehicle and vehicle equipped with the apparatus - Google Patents

Abstract

The present invention relates to a smart and automatic door opening and closing apparatus for a vehicle and a vehicle having the same, wherein a vehicle door can be operated with an automatic opening and closing mode or a manual opening and closing mode, and further, an object around the vehicle door is detected to safely open and close the vehicle door. According to the present invention, the apparatus comprise: a sensor unit (10); a drive unit (30); and a control unit (90).

Description

TECHNICAL FIELD [0001] The present invention relates to a vehicle equipped with a smart vehicle door automatic opening / closing device and a smart vehicle door automatic opening / closing device. BACKGROUND OF THE INVENTION < RTI ID =

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle equipped with a smart vehicle door automatic opening / closing device and a smart vehicle door automatic opening / closing device, and more particularly, And a vehicle equipped with a smart vehicle door automatic opening / closing device for opening and closing the vehicle door safely and a smart vehicle door automatic opening and closing device.

The vehicle door must be kept closed when the vehicle is running, and the opening state of the vehicle door should be maintained stably when the user is getting on and off or moving the goods up and down. The conventional vehicle door is provided with a door checker device of a mechanical structure inside the trim so that the vehicle door rotates relative to the vehicle body along a predetermined path and is kept open at a certain point of the opening / Is designed. Such a door checker device can cause the vehicle door to remain in a stopped state at the stopping point, but it is difficult to maintain a stopping state between the stopping point and the neighboring stopping point. Accordingly, when the vehicle door is opened in a limited space including an object such as a wall or another vehicle around the vehicle, the vehicle door moves without stopping at a desired point, so that the vehicle door may collide with surrounding objects when the vehicle door is opened or closed.

Also, it is difficult to recognize an object near the vehicle door or a vehicle door in the vehicle, so that when the vehicle door is opened, a collision between the vehicle door and the object occurs, leading to personal injury or property damage. In the case of a taxi, it is possible to recognize an object approaching from behind the vehicle by attaching a catch mirror, but it increases the resistance of the air at high speeds and ruins the appearance of the vehicle.

In addition, it is difficult to open and close the vehicle door alone due to inconvenience in the development and operation of the device which can smoothly open and close the vehicle door with a relatively small force. The user can open and close the vehicle door automatically so that the vehicle door can be opened / The development of a device that can be used is being developed.

As the technology develops, the vehicle door needs to be capable of opening and closing the vehicle door safely and conveniently by detecting the surrounding environment beyond the basic function of maintaining the closed state or maintaining the open state stably.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide an apparatus and a method for controlling a vehicle door, And to provide a vehicle equipped with a smart vehicle door automatic opening and closing device and a smart vehicle door automatic opening and closing device so that the opening and closing of the vehicle door can be safely performed by controlling the opening and closing of the vehicle door while notifying the user of the danger.

In addition, it is possible to construct a device which can automatically open and close a vehicle door so that a user who has difficulty in opening and closing the vehicle door by himself or herself can not easily open and close the vehicle door manually, Even when the vehicle door is automatically controlled, the automatic door opening / closing device and the smart door opening / closing device of the smart vehicle door are provided for the user convenience and safety by constituting a device capable of forcibly opening and closing when an emergency occurs To provide the vehicle.

According to an aspect of the present invention, there is provided a sensor for detecting a touch, a sensor disposed in an outer handle of the vehicle door so as to sense a position of an object in a vehicle door rotation area or a distance between the vehicle door and the object, (10); A worm 35 that rotates in conjunction with the rotation shaft of the motor 33 and a worm gear 37 which rotates in conjunction with the worm 35; And a rack gear (41) linearly meshed with the pinion gear (39) and hinged at one end to the vehicle body side, and the power generated by the motor (33) is transmitted to the gear A drive unit (30) that allows the vehicle door to pivot relative to the vehicle body as it passes through the vehicle body; And a control unit 90 for controlling the opening and closing of the vehicle door by deriving a maximum opening angle from a signal detected by the sensor unit 10. The driving unit 30 drives the rack gear 41 so that the displacement and the speed An encoder 70 for detecting a position and an opening / closing speed of the vehicle door by measuring the opening / closing speed of the vehicle door; A clutch (50) for interlocking or separating the worm gear (37) and the pinion gear (39); And a torque limiter (60) positioned between the worm gear (37) and the pinion gear (39), wherein the clutch (50) comprises: a flywheel that rotates in association with the worm gear (37); A pressure plate opposed to the flywheel; And a disk disposed between the flywheel and the pressure plate and having a center portion splined to the shaft of the pinion gear 39. The driving method using the clutch 50 is a method of driving the pinion gear 39, An automatic opening and closing mode in which power is transmitted to the gear 39 and the vehicle door is opened and closed by driving the motor 33; And a manual opening and closing mode in which the vehicle door is opened and closed by an external force by separating the worm gear 37 and the pinion gear 39. The torque limiter 60 is fixed to the pinion gear 39 side And a second rotating body fixed to the worm gear 37. The pinion gear 39 and the worm gear 37 are rotated by friction or slip between the first and second rotating bodies, And the power transmission between the first and second vehicle door openings is interrupted.

Here, the sensor unit 10 includes a water-tight rubber 11 for blocking the gap of the buried portion at the edge of the external handle buried hole; An ultrasonic sensor (13) embedded in the external handle so as to be able to touch or sense the object and exposed through the embedding hole; A sensor housing (15) for receiving the ultrasonic sensor (13); And a circuit module (17) provided on the back surface of the sensor housing (15).

And a latch portion (80) provided inside the vehicle door trim and capable of locking or unlocking the vehicle door by being engaged or disengaged with a striker (88) provided on the vehicle body side, wherein the latch portion (80) includes an entrance hole (81) provided on the vehicle door side in correspondence with a position where the striker (88) is installed when the vehicle door is closed, and the striker (88) A fork lever 83 rotatable to engage or release the striker 88 when the striker 88 enters the entry hole 81; A latch actuator 85 for generating power to rotate the fork lever 83; And a latch sensor capable of sensing a closed state of the vehicle door.

When the sensor unit 10 is touched for a shorter time than the predetermined time t1, the fork lever 83 rotates to release the lock, and the sensor unit 10 is touched for a predetermined time t1 or longer And the drive system is changed between the automatic open / close mode or the manual open / close mode when there is an automatic open / close device for a smart vehicle door.

The alarm unit 100 further includes an alarm unit 100 for generating a visual or auditory signal in response to an electrical signal transmitted from the control unit 90. The alarm unit 100 may further include a buzzer sound when the vehicle door is locked or unlocked, And generating a flicker signal; Generating a buzzer or flashing signal when the driving method of the vehicle door is changed between the automatic opening / closing mode or the manual opening / closing mode; Generating an alarm sound and a lighting signal when the vehicle door is detected to be inserted between the vehicle door and the vehicle body during an automatic closing operation in an automatic opening and closing mode; Wherein when a collision is detected during the opening and closing operation of the vehicle door, an alarm sound and a lighting signal gradually increase starting from a low level as the distance between the vehicle door and the object becomes closer to each other, Lt; / RTI >

On the other hand, as a vehicle using the smart vehicle door automatic opening / closing device, a smart vehicle door automatic opening and closing device; And a bumper sensor embedded in the front and rear bumper of the vehicle along a longitudinal direction thereof, wherein the control unit (90) is configured to detect a maximum opening angle of the vehicle from a displacement and a speed of an object sensed by the bumper sensor, And controlling the opening and closing of the vehicle door.

The remote controller further includes a smart vehicle door automatic control device and a vehicle remote controller capable of transmitting and receiving signals to and from the integrated control part of the vehicle. The control part 90 senses an opening and closing signal transmitted from the remote controller, 30) to operate the vehicle door opening / closing, and detects locking / unlocking signals to be transmitted from the remote controller and controls the latching portion (80) to operate the locking / unlocking of the vehicle door A vehicle provided with a vehicle door automatic opening / closing device.

Further, it is preferable to further include a smart vehicle door automatic opening / closing device and an internal handle provided inside the vehicle door, and when the internal handle is pulled once, the fork lever 83 rotates to release the lock, The striker 88 is completely disengaged from the entry hole 81 to open the vehicle door. If the inner handle is pulled beyond the preset time t2, Wherein the automatic opening / closing mode or the manual opening / closing mode is changed between the open / close mode and the manual open / close mode.

According to the smart vehicle door automatic opening and closing apparatus of the present invention, it is possible to open and close the vehicle door so that the vehicle door and the object do not collide with each other by detecting an object in the vicinity of the vehicle door in a state where the vehicle door is opened or closed.

It is also possible to open and close the vehicle door automatically using the power generated by the motor.

It is also possible to open and close the vehicle door safely and conveniently by informing the user of the dangerous situation when the vehicle door is opened and closed and by controlling the opening and closing of the vehicle door.

Furthermore, in the case where the opening and closing of the vehicle door is fully controlled, even if an emergency occurs, it is possible to prevent damage to the person by constructing the device so that the vehicle door can be forcibly opened and closed.

The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing the configuration of a vehicle door and the present invention,
FIG. 2A is a view showing an appearance after assembly of the sensor unit,
FIG. 2B is a view showing the structure of the sensor unit,
3A shows a structure of a driving part on the pinion gear side,
FIG. 3B is a view showing the structure of the driving unit on the worm gear side,
4 is a view showing a clutch and a torque limiter disposed between the pinion gear and the worm gear,
5 is a view showing a structure of a clutch and a state in which a pinion gear and a worm gear are interlocked by a clutch,
6 is a view showing a state in which rotation between the pinion gear and the worm gear is blocked by the slip of the torque limiter,
7A is a view showing a latch portion before a vehicle door locking state,
7B is a view showing a latch portion in a vehicle door locked state,
8 is a view showing an encoder for detecting the position and opening / closing speed of the vehicle door, and
9 is a view showing a vehicle equipped with a smart vehicle door automatic opening / closing device.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

It is to be understood that the present invention is not limited to the disclosed embodiments, but may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, It is provided to inform.

In the following description of the present invention with reference to FIGS. 1 to 9, the drawings are used for illustrating the concept of the present invention, and the configurations, sizes, shapes, and the like shown in the drawings may be slightly different from actual ones.

Referring to FIG. 1, the present invention includes a sensor unit 10 for sensing a touch of a user approaching a vehicle door or detecting an object in the vicinity of the vehicle door, a power generator for relatively turning the vehicle door relative to the vehicle body And controls the opening and closing of the vehicle door and the locking and the like by calculating the signals received from the vehicle device such as the driving unit 30, the sensor unit 10, or the integrated control unit of the vehicle, And a control unit 90 for controlling the display unit. And includes a latch portion 80 for locking and unlocking the vehicle door and an alarm portion 100 for informing the user of the state of the vehicle door opening and closing and the danger.

The sensor unit 10 will be described with reference to Fig. The sensor unit 10 not only detects the user's touch for releasing the locking device of the vehicle door or opening and closing the vehicle door but also for detecting the contact of the vehicle door with the vehicle door Detects nearby objects. Therefore, as shown in FIG. 2A, the sensor unit 10 may be configured to detect a touch of a user approaching the vicinity of the vehicle handle to open the vehicle door, or to detect an object in the vehicle door rotation area when the vehicle door is opened. And it is preferable to be embedded in the outer handle of the vehicle door so as not to hurt the appearance of the vehicle.

The appearance and structure of the sensor unit 10 will be described with reference to FIG. And a water-tight rubber (11) which constitutes an embedding hole into which a sensor can be inserted and which prevents the penetration of water or contaminants at the edge of the embedding hole, A sensor capable of sensing an object in the vicinity of the door is inserted and installed so as to be exposed on the outer handle surface of the vehicle door through the embedding hole. The sensor is fixedly covered with a sensor housing 15 that houses the sensor inside the outer door of the vehicle door and a circuit module 17 is provided on the back surface of the sensor housing 15 to operate the sensor and transmit and receive signals.

The sensor unit 10 is divided into a user touch sensing unit and an ambient object sensing unit. The sensor unit 10 generally includes an ultrasonic sensor, a laser sensor, and a radar sensor .

Ultrasonic sensors, laser sensors, and radar sensors have a common feature in that they detect the object by analyzing the signals reflected from the object and measure the distance to the object. The difference is that the material emitting to the object is different. Ultrasonic sensors generate sound waves outside the human audible range, and laser sensors generate invisible ultraviolet or infrared rays, and radar sensors generally generate electromagnetic waves at 77 GHz.

Although the ultrasonic sensor has a merit that it is simple in structure and can be configured at a low cost, it has a disadvantage of a slow measurement speed and a short measurement distance, and a laser sensor is advantageous in that it is relatively inexpensive. However, Has the advantage of being detected to a long distance without being affected by the surrounding environment, but it is disadvantageous in that it is expensive.

The ultrasonic sensor 13 mainly comprises a transmitter for generating ultrasonic waves, a receiver for receiving ultrasonic waves, and a controller for controlling them. The operation of the sensor unit 10 including the ultrasonic sensor 13 is generally performed by generating a ultrasonic wave of 40 kHz at a predetermined interval in the transmitter and detecting the presence or distance of the object by measuring the time until the ultrasonic wave is received by the receiver .

The ultrasonic sensor 13 is provided with the ultrasonic sensor 13. The ultrasonic sensor 10 transmits and receives the ultrasonic waves to detect the touch of the sensor unit 10 in the handle, .

The detection of the touch of the sensor unit 10 is performed using the characteristic that the ultrasonic wave travels along the surface of the ultrasonic sensor 13. The ultrasonic wave is flowed to the surface of the ultrasonic sensor 13 by using the sonic wave converter and the sonic wave reflector, (13) When touching the surface, it is possible to discriminate whether or not the touch is detected by detecting an ultrasonic wave which is blocked by the finger and is not received. When the user touches the sensor unit 10, various functions may be displayed according to the time of the touch. For example, when the sensor unit 10 is touched for a shorter time than the preset time t1, When the lock is released by turning the fork lever 83 of the latch unit 80 or the sensor unit 10 is touched for a predetermined time t1 or more, The opening / closing mode or the manual opening / closing mode can be mutually changed.

Meanwhile, the detection of an object around the vehicle door is performed by the ultrasonic sensor 13 generating an ultrasonic wave by a transmitter, receiving ultrasound returning from the object, and calculating the time difference therebetween to measure the distance. When the sensor unit 10 detects an object in the vicinity of the vehicle door, it can warn the user of the collision or avoid the collision between the vehicle door and the object by adjusting the maximum opening angle.

The relative position of the vehicle door and the surrounding object continuously changes in a state where the vehicle door is opened or closed or an object in the vicinity of the vehicle door is moving. Therefore, when ultrasonic waves are transmitted and received in a short period, it is possible to quickly detect objects around the vehicle door, and it is possible to quickly respond to the collision with an object when the vehicle door is opened or closed. For example, when ultrasonic waves are generated in a period of about 30 ms, and ultrasound waves reflected from the object are received, the object outside the vehicle door can be detected at intervals of about 30 ms.

Further, in the process of opening and closing the vehicle door, the relative position of the object around the vehicle door and the vehicle door changes, so that an object in the vicinity of the vehicle door is placed in a region where it is difficult to receive the echo wave from the sensor unit 10, 10) may be in a situation where it is difficult to detect a signal. At this time, the position of the object can be estimated by calculating the relative position of the object according to the movement of the vehicle door based on the absolute position of the object at the time of entering the detection area of the sensor unit 10. [

It is preferable that the sensor unit 10 is not operated under the condition that the vehicle is running while the vehicle is running. Therefore, in consideration of the efficiency, So that it is possible to avoid collision with surrounding objects while driving.

Hereinafter, the driving unit 30 will be described with reference to FIG. The vehicle door is hinged to the vehicle body and is rotated and rotated relative to the vehicle body along a predetermined path. The vehicle door can be automatically opened and closed by receiving the power generated by the driving unit 30 installed therein.

The motor 33 receives the signal transmitted from the control unit 90 and generates power by rotating the rotary shaft. The motor 33 transmits the power generated by the motor 33 to the vehicle door through the gear to open and close the vehicle door. Since the driving unit 30 is installed inside the door trim of the vehicle, the size of the driving unit 30 installed in the interior space of the vehicle door is limited. Therefore, it is preferable to transmit the power generated by the motor to the vehicle door through the gear so that a large reduction ratio that can move the vehicle door with the compact motor 33 can be obtained.

A worm 35 interlocked with the rotation axis of the motor 33 and a worm gear 37 with teeth formed along the circumferential surface thereof are perpendicular to each other and do not intersect with each other and the threads of the worm 35 and the teeth of the worm gear 37, So that they can be engaged with each other. The power generated by the compact motor 33 can be transmitted to the worm gear 37 by the rotation at a large reduction ratio by interlocking with the worm 35 and rotating the worm gear 37. [ Therefore, it is preferable to use the worm 35 and the worm gear 37 to switch the power of the motor 33 to a rotation at a large reduction ratio. However, various gears such as a bevel gear, a helical gear, and a spur gear may be used in addition to the worm 35 and the worm gear 37 in order to convert the power generated by the motor 33 into a rotation with a large reduction ratio.

The pinion gear 39 rotates on the same rotation axis as the worm gear 37 and is rotated by the worm gear 37 together with the worm gear 37 by the clutch described below.

The rotation of the pinion gear 39 is converted into a linear movement of the rack gear 41. The rack gear 41 is meshed with the teeth formed on the circumferential surface of the pinion gear 39, So that the pinion gear 39 is linearly moved in conjunction with the rotation of the pinion gear 39. The front end of the rack gear 41 is hinged to the hinge member attached to the vehicle body side so that the vehicle door can be rotated relative to the vehicle body with the hinge connecting portion as an axis as the rack gear 41 linearly moves.

4, the present invention may further include a clutch 50 disposed between the pinion gear 39 and the worm gear 37. The clutch 50 receives the signal transmitted from the control unit 90 and enables the vehicle door to be operated in the automatic opening / closing mode or the manual opening / closing mode by interlocking or separating the pinion gear 39 and the worm gear 37.

Specifically, when the pinion gear 39 and the worm gear 37 are interlocked by the clutch 50, the motor 33 generates power in accordance with an electric signal transmitted to the motor 33, and the motor 33 The power is transmitted to the worm gear 37 engaged with the worm 35 through the worm 35 interlocked with the rotary shaft. The power transmitted to the worm gear 37 is transmitted to the rack gear 41 engaged with the pinion gear 39 through the pinion gear 39 interlocked with the worm gear 37 to thereby appear as a linear movement of the rack gear 41. [ The power generated by the motor 33 by the electric signal transmitted to the motor 33 through this process is transmitted to the vehicle door through the gear so that the opening and closing of the vehicle door can be automatically performed.

On the other hand, when the pinion gear 39 and the worm gear 37 are separated by the clutch, the power generated by the motor 33 can not be transmitted to the pinion gear 39 and is shut off, Since the rack gear 41 can move linearly independently, opening and closing of the vehicle door can be manually operated by an external force.

5, the clutch 50 includes a flywheel that rotates in combination with the worm gear 37, a pressure plate that faces the flywheel, and a disk that is positioned between the flywheel and the pressure plate. The disk is centered on the shaft of the pinion gear 39, Respectively.

When the flywheel and the pressure plate become close to each other by the external force, the disk is squeezed between the flywheel and the pressure plate, and the flywheel, the pressure plate and the disk integrally move due to frictional force. At this time, the worm gear 37 and the pinion gear 39 interlock with each other and the power of the motor 33 is transmitted to the vehicle door through the worm gear 37 and the pinion gear 39, so that the vehicle door is operated in the automatic opening and closing mode.

When the flywheel and the pressure plate are separated from each other, the disc is separated from the flywheel and the pressure plate, so that the worm gear 37 and the pinion gear 39 move independently. At this time, since the power of the motor 33 is interposed between the worm gear 37 and the pinion gear 39, the vehicle door is operated in the manual opening and closing mode.

The external force acting between the flywheel and the pressure plate can be generated by using a diaphragm spring or by using an electromagnet. When the diaphragm spring is used, the outer peripheral surface of the diaphragm spring presses the pressure plate, the disk is pressed between the flywheel and the pressure plate, and power is transmitted from the worm gear 37 to the pinion gear 39. When the inner circumferential surface of the diaphragm spring is pushed in the direction of the worm gear 37 in this state, the diaphragm spring supported between the pivot rings supporting the diaphragm spring is separated from the disk by the lever action first and the disk is separated from the flywheel and the pressure plate The power between the worm gear 37 and the pinion gear 39 is cut off.

When the electromagnet is used, the flywheel and the pressure plate are made of electromagnets, and electric signals are sent to the flywheel and the pressure plate so that the flywheel and the pressure plate are brought close to each other or away from each other by the magnetic force, so that the disc is squeezed between the flywheel and the pressure plate, So that the power of the worm gear 37 can be transmitted to or blocked from the pinion gear 39.

On the other hand, when the vehicle door is opened and closed by an external force by the manual opening / closing mode, the clutch can be driven in a sophisticated and smooth manner to operate the vehicle door in accordance with the situation. When the external force is continuously applied at the maximum opening angle of the vehicle door, the joint portion between the vehicle door and the vehicle body may be broken. The pinion gear 39 and the worm gear 37 are interlocked with each other by driving the clutch at the maximum opening range of the vehicle door to drive the motor 33 in the direction opposite to the direction in which the vehicle door is opened to decelerate the vehicle door opening speed, If the vehicle door is no longer opened at the maximum opening angle, the force applied to the joint portion between the vehicle door and the vehicle body can be reduced, thereby preventing damage to the joint portion between the vehicle door and the vehicle body.

When a predetermined time has elapsed after the vehicle door reaches the maximum opening position or the vehicle door is stopped, the vehicle door is moved when the vehicle is getting on and off by fixing the vehicle door by interlocking the pinion gear 39 and the worm gear 37 by the operation of the clutch .

In addition, when the vehicle is parked at a sloping place, it is difficult to open and close the vehicle door due to the self weight of the vehicle door. By operating the clutch, the pinion gear 39 and the worm gear 37 are interlocked, The opening and closing of the vehicle door can be facilitated.

As described above, when the vehicle door is operated in the automatic opening and closing mode by the motor 33, the worm gear 37 and the pinion gear 39 are interlocked by the clutch, so that the opening and closing of the vehicle door is controlled by the motor 33. However, even in a situation in which the vehicle door must be forcibly opened or closed in an emergency, the motor 33 is not driven and the vehicle door may be put in a floating state. In this case, if the vehicle door can not be forcibly opened and closed by an external force, it may lead to personal injury, it is preferable to include a device capable of forcibly opening and closing the vehicle door by an external force even when the vehicle door is driven in the automatic opening and closing mode Do.

3, when the torque limiter 60 is installed between the pinion gear 39 and the worm gear 37, when an external force equal to or greater than a predetermined magnitude is applied to the vehicle door even when the vehicle door is driven in the automatic opening and closing mode, Can be moved.

Referring to FIG. 6, the torque limiter 60 includes a first rotating body and a second rotating body that cooperate to contact and coaxially rotate so as to maintain a predetermined frictional force at a contact surface. When the pinion gear 39 and the worm gear 37 rotate by being rotated by the clutch, the first rotating body is fixed to the pinion gear 39 side and the second rotating body is fixed to the worm gear 37 side, 60 rotate together between the pinion gear 39 and the worm gear 37. If over torque is generated between the pinion gear 39 and the worm gear 37 due to a difference in rotational force or rotation direction acting on the pinion gear 39 and the worm gear 37, slip occurs between the first and second rotors, The power transmission between the gear 39 and the worm gear 37 is blocked. When the transmission of power between the pinion gear 39 and the worm gear 37 is interrupted, the vehicle door can be opened and closed by an external force in a state in which the vehicle door operates in the manual opening / closing mode as well as in the automatic opening and closing mode.

Referring to FIG. 7, the present invention further includes a latch portion 80 installed inside the vehicle door trim and capable of automatically locking or unlocking the vehicle door. The latch portion 80 includes an entrance hole 81 provided to allow the striker 88 installed on the vehicle body side to enter the vehicle door portion abutting the vehicle body side, a fork lever 83 which can be rotated and striked or released, A latch actuator 85 for generating power capable of rotating the fork lever 83 independently of the motor 33 of the driving unit 30 and a latch sensor for detecting the closed state of the vehicle door.

When the vehicle door is in the locked state, the striker 88 provided on the vehicle body side is inserted into the entry hole 81 provided in the vehicle door portion abutting the vehicle body side, and the striker 88 inserted into the entry hole 81, The fork lever 83 is engaged to fix the vehicle body and the vehicle door so that the vehicle door can not be opened. When the user releases the locked state of the vehicle door by using the inside or outside handle of the vehicle door or the remote control of the vehicle, the fork lever 83, which hangs the striker 88 by the power generated by the latch actuator 85, And the locked state of the vehicle door is released.

On the other hand, when the vehicle door is closed in the manual opening / closing mode, sufficient force opposing the self weight of the vehicle door and the frictional force of the coupling portion on the vehicle body side can not be applied, and the vehicle door may not be completely closed on the vehicle body side. Further, in order to completely close the vehicle door to the vehicle body side even when the vehicle door is closed in the automatic opening and closing mode, a larger power than the power required for simply turning the vehicle door at the driving portion 30 must be generated. .

When the vehicle door is closed and the striker 88 installed on the vehicle body side enters the entry hole 81, the latch sensor senses entry of the striker 88, and the latch actuator 85 generates power. The fork lever 83 is pivoted by the striker 88 by the power generated by the latch actuator 85, thereby pulling the vehicle door toward the vehicle body and completely closing the vehicle door.

Referring to FIG. 8, the present invention further includes an encoder 70 capable of detecting a vehicle opening / closing direction and a speed. When the vehicle door is operated in the automatic opening and closing mode, the rotation of the vehicle door and the motor 33 of the driving unit 30 are interlocked with each other. Therefore, the rotation direction or speed of the motor 33 is calculated to detect the opening / . However, even if the vehicle door is operated in the automatic opening / closing mode, when the power is interrupted by the torque limiter 60 or when the vehicle door is operated in the manual opening / closing mode, a separate device capable of detecting the opening / Is required.

The encoder 70 includes an encoder gear that rotates in conjunction with the linear movement of the rack gear 41. The linear movement direction or speed of the rack gear 41 varies depending on whether the vehicle door is open or closed, The rotational direction and the speed of the motor also vary. Therefore, by measuring the rotation direction or speed of the encoder gear, it is possible to detect whether the vehicle door is open or closed.

The present invention further includes an alarm unit (100) for generating a visual or auditory signal in response to an electrical signal transmitted from the control unit (90). The alarm unit 100 has a function of informing the user of an overall situation occurring in connection with the opening and closing of the vehicle door or warning the user.

For example, when the vehicle door is locked or unlocked, a buzzer or a flashing signal is generated to notify the user whether the vehicle is locked or a buzzer or flashing when the driving mode of the vehicle door is changed between the automatic opening / Signal to inform the user of the change of the driving method. When the vehicle door is in the automatic opening and closing mode, an alarm sound and a lighting signal are generated when the vehicle door is detected to be sandwiched between the vehicle door and the vehicle body during the automatic closing operation, or when a collision is detected during the opening and closing operation of the vehicle door, The user can warn the user of a dangerous situation by generating an alarm sound and a lighting signal gradually increasing from a low level.

Referring to FIG. 9, a vehicle equipped with a smart vehicle door automatic opening / closing device according to the present invention will be described below. BACKGROUND ART Recently, a bumper sensor capable of sensing an object around a vehicle is embedded in front and rear bumper along the longitudinal direction so as to avoid collision with an object in the vicinity of the vehicle in relation to front and rear running. As described above, the ultrasonic sensor, the laser sensor, and the radar sensor may be used as the bumper sensor used for sensing an object.

Since the sensor has a limited directional angle and sensing distance, it is difficult to determine whether the vehicle is collided with an object when the door is opened or closed by detecting a dynamic object approaching the periphery of the vehicle door only by the sensor embedded in the outer handle of the vehicle door. Accordingly, when the vehicle door is opened and closed, the bumper sensor embedded in the front and rear bumper is interlocked to avoid collision with surrounding objects.

The bumper sensor embedded in the front and rear bumper is operated to detect the opening angle of the sensor unit 10 placed in the outer handle of the vehicle door, An object that is off can also be detected. A maximum opening angle is derived from the displacement and speed of the object detected by the bumper sensor embedded in the front and rear bumper and the opening speed of the vehicle door as well as the object sensed by the sensor unit 10 embedded in the outer door of the vehicle door, Controlling opening and closing can avoid collision with objects approaching in various directions.

In addition, recently produced vehicles provide a remote controller that can lock and unlock the vehicle doors and turn on and off the start-up. The control unit 90 can control the opening and closing of the vehicle door and the locking and unlocking from the signal of the remote controller provided to the vehicle. The control unit 90 senses an open / close signal transmitted from the remote controller, controls the driving unit 30 to operate the vehicle door opening / closing operation, detects a lock or release signal transmitted from the remote controller, The lock and unlock of the vehicle door can be operated.

In addition, it is possible to control the opening and closing of the vehicle door and the locking and unlocking in conjunction with the inside handle of the vehicle door. When the inner handle is pulled and pulled once, the fork lever 83 is pivoted to release the lock. When the inner handle is pulled again after the lock is released, the striker 88 is moved in the entry hole 81 The vehicle door is opened by completely releasing the door, and the driving system can be changed between the automatic opening and closing mode or the manual opening and closing mode if the inner handle is pulled over the predetermined time t2.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the invention is not limited to the disclosed exemplary embodiments. It is obvious that a transformation can be made. Although the embodiments of the present invention have been described in detail above, the effects of the present invention are not explicitly described and described, but it is needless to say that the effects that can be predicted by the configurations should also be recognized.

10: Sensor unit
11: Water-tight rubber
13: Ultrasonic sensor
15: Sensor housing
17: Circuit module
30:
33: Motor
35: Worm
37: Worm Gear
39: Pinion gear
41: Racks
50: clutch
52: Flywheel
54: Pressure plate
56: Disc
57: diaphragm spring
58: Pivot ring
60: Torque limiter
62: 1st whole
64: 2nd whole
70: Encoder
80:
81: Entry hole
83: Fork lever
85: Latch actuator
88: Striker
90:
100:
110: Front and rear bumper sensor
120: Vehicle remote controller

Claims (8)

A sensor unit 10 embedded in an outer handle of the vehicle door so as to sense a touch or sense a position of an object in a vehicle door rotation area or a distance between the vehicle door and the object;
A worm 35 that rotates in conjunction with the rotation shaft of the motor 33 and a worm gear 37 which rotates in conjunction with the worm 35; And a rack gear (41) linearly meshed with the pinion gear (39) and hinged at one end to the vehicle body side, and the power generated by the motor (33) is transmitted to the gear A drive unit (30) that allows the vehicle door to pivot relative to the vehicle body as it passes through the vehicle body; And
And a control unit (90) for deriving a maximum opening angle from the signal sensed by the sensor unit (10) to control opening and closing of the vehicle door,
The driving unit (30)
An encoder 70 for sensing the position and opening / closing speed of the vehicle door by measuring the displacement and the speed of the rack gear 41; A clutch (50) for interlocking or separating the worm gear (37) and the pinion gear (39); And a torque limiter (60) positioned between the worm gear (37) and the pinion gear (39)
The clutch (50)
A flywheel which rotates in combination with the worm gear 37; A pressure plate opposed to the flywheel; And a disk positioned between the flywheel and the pressure plate and splined to a shaft of the pinion gear (39) at a central portion thereof,
In the drive system by the clutch 50,
An automatic opening and closing mode in which power is transmitted from the worm gear 37 to the pinion gear 39 to open and close the vehicle door by driving the motor 33; And
And a manual opening / closing mode in which the worm gear 37 and the pinion gear 39 are separated to open / close the vehicle door by an external force,
The torque limiter (60)
A first rotating body fixed to a side of the pinion gear 39 and a second rotating body fixed to a side of the worm gear 37, (39) and the worm gear (37) is interrupted.
The method according to claim 1,
The sensor unit (10)
A water-tight rubber (11) for blocking the gap of the buried portion at the edge of the external handle buried hole;
An ultrasonic sensor (13) embedded in the external handle so as to be able to touch or sense the object and exposed through the embedding hole;
A sensor housing (15) for receiving the ultrasonic sensor (13); And
And a circuit module (17) provided on a back surface of the sensor housing (15).
The method according to claim 1,
Further comprising a latch portion (80) provided inside the vehicle door trim and capable of locking or unlocking the vehicle door by being engaged or disengaged with a striker (88) provided on the vehicle body side,
The latch portion (80)
An inlet hole 81 provided on the vehicle door side in correspondence with a position where the striker 88 is installed when the vehicle door is closed, and the striker 88 can be entered; A fork lever 83 rotatable to engage or release the striker 88 when the striker 88 enters the entry hole 81; A latch actuator 85 for generating power to rotate the fork lever 83; And a latch sensor capable of detecting a closed state of the vehicle door.
The method according to claim 1,
When the sensor unit 10 is touched for a shorter time than the preset time t1, the fork lever 83 rotates to release the lock. When the sensor unit 10 is touched for a predetermined time t1 or more Wherein the drive system is changed between the automatic open / close mode and the manual open / close mode.
The method according to claim 1,
Further comprising an alarm unit (100) for generating a visual or auditory signal in response to an electrical signal transmitted from the control unit (90)
The alarm unit (100)
Generating a buzzer and flashing signal when the vehicle door is locked or unlocked; Generating a buzzer or flashing signal when the driving method of the vehicle door is changed between the automatic opening / closing mode or the manual opening / closing mode; Generating an alarm sound and a lighting signal when the vehicle door is detected to be inserted between the vehicle door and the vehicle body during an automatic closing operation in an automatic opening and closing mode; Wherein when a collision is detected during the opening and closing operation of the vehicle door, an alarm sound and a lighting signal gradually increase starting from a low level as the distance between the vehicle door and the object becomes closer to each other, .
A smart vehicle door automatic opening / closing apparatus according to any one of claims 1 to 5; And
A plurality of bumper sensors embedded in the front and rear bumper of the vehicle along the longitudinal direction,
The control unit (90)
Wherein the control unit controls the opening and closing of the vehicle door by deriving the maximum opening angle from the displacement and speed of the object sensed by the bumper sensor and the opening speed of the vehicle door.
A smart vehicle door automatic opening / closing apparatus according to any one of claims 1 to 5; And
Further comprising a vehicle remote controller capable of transmitting and receiving signals to and from an integrated control unit of the vehicle,
The control unit (90)
The control unit senses an open / close signal transmitted from the remote controller and controls the driving unit 30 to operate the vehicle door opening / closing, detects a lock or release signal transmitted from the remote controller, and controls the latch unit 80, Wherein the vehicle door is locked and unlocked.
A smart vehicle door automatic opening / closing apparatus according to any one of claims 1 to 5; And
Further comprising an inner handle disposed inside the vehicle door,
When the inner handle is pulled once, the fork lever 83 is pivoted to release the lock. When the inner handle is once again pulled in a state where the lock is released, the striker 88 is moved in the entry hole 81 And the driving system is changed between the automatic opening / closing mode or the manual opening / closing mode when the inner handle is pulled over the predetermined time (t2) .

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