KR102173472B1 - Retractable door handle apparatus, system and control method thereof - Google Patents

Abstract

Disclosed are a retractable door handle system and a control method therefor. A retractable door handle apparatus according to an embodiment of the present invention comprises: a door handle mounted to be movable outside and inside an outer panel of a vehicle door; a housing installed inside the outer panel to accommodate the door handle; V-shaped hinge links each fixed to an inner surface of the housing in an inward direction parallel to brackets formed on the left and right sides of the door handle; and a bidirectional actuator which moves the door handle to a pop-up position outside the outer panel or to a storage position inside the outer panel through the V-shaped hinge link in which a hinge is opened or retracted by moving rods, which are respectively connected to the left and right sides, backward or forward by a driving force according to a control signal applied from a vehicle controller. Therefore, the present invention can reduce the complexity of components within a limited space of the outer panel.

Description

Retractable door handle device, system, and control method thereof {RETRACTABLE DOOR HANDLE APPARATUS, SYSTEM AND CONTROL METHOD THEREOF}

The present invention relates to a retractable door handle device, a system, and a control method thereof, and more particularly, to a retractable door handle device and a system using a lidar applied to a vehicle, and a control method thereof.

In general, a vehicle is equipped with one or more doors for occupants to enter the interior, and each door has an outside door handle for opening and closing the door from the outside, and an inside door handle for opening and closing the door in the interior. Inside Door Handle) is composed.

Among them, the outside door handle is usually installed in a structure protruding outward from the outer panel of the door, so that the occupant can easily grasp it. However, the conventional exterior door handle protrudes to the outside of the vehicle, deteriorating the appearance of the vehicle, causing noise during driving, and deteriorating driving performance due to frictional resistance with air.

Accordingly, there is a trend of developing a retractable door handle (also referred to as a retractable door handle) in recently released foreign vehicles in order to solve the disadvantages of the outside door handle.

The retractable door handle has an operation structure that is accommodated inside the outer panel when the vehicle is parked or driven, and pops up to the outside of the outer panel when the door is opened and closed according to the linkage with the smart key.

However, in the retractable door handle, a retractable configuration to store/pop up the door handle is added to the door opening and closing structure of the existing outside door handle, increasing the complexity of components in the limited space between the outer panel and the inner panel of the door. It has the disadvantage of increasing the cost accordingly.

In addition, since manufacturing/delivery of most retractable door handles is limited to expensive overseas parts makers, there is a problem of increasing the production cost of vehicles, so a plan for localization through technological improvement is needed.

The matters described in this background are prepared to enhance an understanding of the background of the invention, and may include matters not known in the prior art to those of ordinary skill in the field to which this technology belongs.

An embodiment of the present invention is to provide a retractable door handle system and a control method thereof using a two-way actuator that pops up a door handle of a vehicle by detecting a driver's approach through a lidar sensor.

According to an aspect of the present invention, a retractable door handle device applied to a vehicle includes: a door handle mounted to be movable outside and inside an outer panel of a vehicle door; A housing installed inside the outer panel to accommodate the door handle; V-shaped hinge links each fixed to the inner surface of the housing in an inward direction parallel to the brackets formed on the left and right sides of the door handle; And moving the door handle to a pop-up position outside the outer panel through the V-shaped hinge link in which the hinges are opened or reduced by moving the rods connected to the left and right sides respectively with the driving force according to the control signal applied from the vehicle controller. Or a two-way actuator that moves it to an internal storage position.

In addition, the V-shaped hinge link includes two links of the same length in which hinge holes are formed at the front and end portions, respectively, and two front hinge holes located on one side are hinged with the first hinge shaft provided on the rod, and the other side One link end hinge hole located at is hinge-coupled to a second hinge shaft provided on the bracket, and the other link end hinge hole may be hinge-coupled to a third hinge shaft provided on the inner surface of the housing.

In addition, the bidirectional actuator may include a first rotor and a second rotor respectively rotated in a divided structure on both left and right sides in the case; And an integrated stator that is formed through the first and second rotors and generates an electromagnetic field in the same direction according to the control signal.

In addition, the first and second rotors are synchronized through the sharing of the integrated stator, so that they can rotate in the same direction and at the same speed.

In addition, the screw groove of the first rotor and the screw thread of the first rod fastened thereto may be formed in opposite directions to the screw groove of the second rotor and the thread of the second rod fastened thereto.

In addition, the bidirectional actuator may be configured as a bidirectional stepper motor that moves the first and second rotors forward or backward by a predetermined distance.

In addition, the door handle may have a "C" shape or a "C" shape that can be held by hand at the pop-up position, and the brackets may be formed at both ends.

In addition, the door handle opens the door latch by an electrical signal generated by pressing the piezoelectric sensor by the pulling force of the handle end surface bent in the same plane as the bracket formed at both ends at the pop-up position. Can work with

In addition, the housing may include a guide unit that accommodates and supports the bidirectional actuator, and guides the movement of the bidirectional actuator when the rod is advanced or retracted.

In addition, the guide portion is fixed to the inner wall of the housing in the form of a box, and a guide groove into which a guide protrusion formed in the case of the bidirectional actuator is inserted, and a rod slot through which the rod fastened to the left and right of the bidirectional actuator penetrates, the door handle moves. It can be formed in the same direction as the direction.

According to an aspect of the present invention, a retractable door handle system applied to a vehicle includes a door handle mounted to be movable outside and inside an outer panel of a vehicle door, and installed inside the outer panel to receive the door handle. A V-shaped hinge link fixed to the inner surface of the housing in an inward direction parallel to the brackets formed on the left and right sides of the door handle, and the rods connected to the left and right sides with a driving force according to a control signal applied from the vehicle controller, or A door handle device including a two-way actuator for moving the door handle to a pop-up position outside the outer panel or to an internal storage position through the V-shaped hinge link in which the hinge is opened or reduced by retreating; And a vehicle controller that recognizes a driver who approaches the vehicle through the lidar unit and controls the operation of the door handle devices respectively installed on the doors of the vehicle.

In addition, the vehicle controller includes a lidar unit installed on both left and right sides of the vehicle to recognize a driver's approach; A vehicle state detection unit that collects vehicle state information according to the operation of various sensors and controllers of the vehicle; And a controller configured to control operations of a pop-up mode and a storage mode of the door handle device by applying a control signal according to whether the driver is recognized through the lidar unit.

In addition, the lidar unit receives a smart key and an RF signal, the RF antenna for recognizing that the driver approaches the vehicle; And a lidar sensor for recognizing a driver existing in a predetermined lidar signal area around the door by irradiating the lidar signal.

In addition, the vehicle state detection unit deactivates the lidar sensor by entering the sleep mode while the vehicle is parked, and activates the lidar sensor under the condition that an RF signal from the smart key is received through the RF antenna. can do.

In addition, when the driver is recognized within a predetermined lidar signal area around the door while the vehicle is parked, the controller may control the door handle device in a pop-up mode and switch the door to an unlock state.

In addition, the control unit satisfies a series of door handle storage conditions that start driving at a certain vehicle speed after the vehicle is turned on after confirming the open and close signals of the door through the vehicle condition detection unit. If so, it is possible to control the door handle device to the storage mode and switch the door to a locked state.

Meanwhile, a vehicle controller according to an embodiment of the present invention controls the door handle in a pop-up mode or a storage mode through a V-shaped hinge link in which the hinge opens or decreases by advancing or retreating the rods connected to both left and right sides by the driving force of the actuator. A method of controlling a tractorable door handle device includes: a) activating a lidar sensor as a condition for receiving an RF signal of a smart key while a vehicle is parked; b) tracking a driver through the lidar sensor to determine whether it exists within a predetermined lidar signal area around the door; c) when the presence of the driver is recognized, controlling the door handle device to a pop-up mode and switching the door to an unlocked state; And d) controlling the door handle device to a storage mode when the vehicle satisfies a driving condition of a certain vehicle speed after checking the open and closing signals of the door and converting the door to a locked state. .

In addition, in step c), if the driver tracking through the lidar sensor is in a valid state within the lidar signal area while the door handle is popped up, the popup mode and the unlocked state of the door handle can be maintained. have.

In addition, step d) may include a step of generating an electrical signal from a piezoelectric sensor by a pulling force of the door handle and operating the door latch to open.

In addition, after step d), a parking situation in which a reverse speed shift of less than a certain vehicle speed is input is recognized while driving, and an around view image according to object recognition on both left and right sides of the vehicle is displayed on the display through the lidar sensor. It may further include a step.

According to an embodiment of the present invention, a limited space of an outer panel is provided by providing a door handle device having a structure capable of horizontally popping a retractable door handle through one bidirectional actuator and V-shaped hinge links provided on both left and right sides thereof. It has the effect of reducing the complexity of my parts.

In addition, by performing pop-up and door unlocking of the retractable door handle at the same time through the driver's recognition through the lidar sensor under the condition that the smart key is detected through the RF antenna, the touch sensor for door lock/unlock is omitted and the user's convenience. There is an effect that can improve.

In addition, the lidar sensor applied to the retractable door handle system provides an around view function according to the side detection of the vehicle when parking, thereby improving the convenience of parking for customers.

1 is a conceptual diagram schematically showing the configuration of a retractable door handle system according to an embodiment of the present invention.
2 shows a configuration of a retractable door handle device according to an embodiment of the present invention.
3 shows a state in which the retractable door handle device according to an embodiment of the present invention is operated to a pop-up position.
4 shows a state in which the retractable door handle device according to an embodiment of the present invention is operated to a storage position.
5 is a cross-sectional view showing the structure of a bidirectional actuator accommodated in a guide according to an embodiment of the present invention.
6 is an enlarged partial cross-sectional view of portion "A" of FIG. 2 according to an embodiment of the present invention.
7 is a block diagram schematically showing the configuration of a vehicle controller according to an embodiment of the present invention.
8 is a flowchart schematically illustrating a method of controlling a retractable door handle device according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art may easily implement the present invention. However, the present invention may be implemented in various forms and is not limited to the embodiments described herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and similar reference numerals are assigned to similar parts throughout the specification.

Throughout the specification, when a part "includes" a certain component, it means that other components may be further included rather than excluding other components unless otherwise stated. In addition, terms such as "... unit", "... group", and "module" described in the specification mean units that process at least one function or operation, which can be implemented by hardware or software or a combination of hardware and software. have.

Throughout the specification, terms such as first, second, A, B, (a), and (b) may be used, but the above components should not be limited by the terms. These terms are only used to distinguish the component from other components, and the nature, order, or order of the component is not limited by the term.

Now, a retractable door handle system and a control method thereof according to an embodiment of the present invention will be described in detail with reference to the drawings.

1 is a conceptual diagram schematically showing the configuration of a retractable door handle system according to an embodiment of the present invention.

Referring to FIG. 1, in the retractable door handle system according to an embodiment of the present invention, a door handle device of a retractable type that pops up the door handle to the outside of the outer panel or accommodates the inside of the outer panel according to an applied signal ( 100) and a vehicle controller 200 for controlling the operation of the door handle device 100 by recognizing a driver who has approached the vehicle through the lidar unit 210.

2 shows a configuration of a retractable door handle device according to an embodiment of the present invention.

3 shows a state in which the retractable door handle device according to an embodiment of the present invention is operated to a pop-up position.

4 shows a state in which the retractable door handle device according to an embodiment of the present invention is operated to a storage position.

Hereinafter, in the case of a configuration in which the same configuration is provided on both left and right sides when necessary in the description, a and b of the same reference numerals will be used. For example, if necessary, if the same configuration is on the left side of the drawing, add a and add b if it is on the right.

2 to 4, the door handle device 100 includes a door handle 110 mounted to be movable outside and inside an outer panel of a vehicle door, and a housing 120 supporting and receiving the door handle 110. ), in the V-shaped hinge links 130a and 130b fixed to the inner surface of the housing 120 in the inner direction parallel to the brackets 111a and 111b formed on the left and right sides of the door handle 110 and the vehicle controller 200 The door handle 110 is moved to the outer through the V-shaped hinge links 130a and 130b in which the hinges are opened or reduced by advancing or retreating the rods 140a and 140b respectively connected to the left and right with a driving force according to the applied control signal. It includes a two-way actuator 150 that moves to a pop-up position outside the panel or to a storage position inside the panel.

The door handle 110 has a shape of “C” or “C” that can be held by hand at the pop-up position.

The door handle 110 is a piezoelectric sensor installed in the direction of the outer panel of the door by the pulling force when the door is opened by the handle end surface 112 bent in the same plane as the brackets 111a and 111b formed at both ends in the pop-up position ( 160). Accordingly, an electrical signal generated from the piezoelectric sensor 160 is transmitted to the connection line 161 so that the door latch 170 is operated by opening. However, the piezoelectric sensor 160 is not limited to the direction of the outer panel of the door and may be installed under the end surface 112 of the handle.

The door latch 170 may be operated by opening by a driving force of the latch driving unit 171 operated by an electrical signal from the piezoelectric sensor 160, and in addition, it is a known actuator method or a mechanical method that pulls a cable. A variety of door open/close technologies operated by can be applied.

Each of the V-shaped hinge links 130a and 130b includes two links of the same length in which hinge holes h1 and h2 are formed at the front and end portions, respectively.

V-shaped hinge links (130a, 130b) are hinge-coupled with the first hinge shaft (a1) provided in the rod (140a, 140b) two front end hinge holes (h1) located on one side, and one link end located on the other side The hinge hole (h2) is hinged to the second hinge shaft (a2) provided on the brackets (111a, 111b), and the other link end hinge hole (h2) is a third hinge shaft provided on the inner surface of the housing 120 It is hinged on (a3).

These V-shaped hinge links (130a, 130b) are based on the first hinge axis (a1) provided on the rods (140a, 140b) due to the hinge coupling structure to the second hinge axis (a2) and the third hinge axis (a3). Two links, each connected, form an overall V-shaped structure.

Meanwhile, a state in which the door handle device is operated in a pop-up mode will be described with reference to FIG. 3.

When the vehicle controller 200 detects that the driver approaches the vehicle through the lidar unit 210, the vehicle controller 200 applies a control signal for pop-up of the door handle 110 to the two-way actuator 150. However, in addition to the pop-up condition of the door handle 110, various conditions for the driver to open the door may be applied.

At this time, when the rods 140a and 140b on both sides advance by the operation of the bidirectional actuator 150, the opening angle of the V-shaped hinge links 130a and 130b with respect to the first hinge axis a1 increases, and the door handle ( 110) is moved to the pop-up position outside the outer panel.

On the other hand, a state in which the door handle device is operated in the storage mode will be described with reference to FIG. 4.

In the unlocked state of the door, if the vehicle is driven after the driver's boarding or the driver who got off through the lidar unit 210 is not detected, the two-way actuator 150 sends the door handle 110 to the door handle 110. ) Apply a control signal for storage. However, in addition to the storage conditions of the door handle 110, various conditions for the driver to lock the door may be applied.

At this time, when the rods 140a and 140b on both sides are retracted by the operation of the bidirectional actuator 150, the opening angle of the V-shaped hinge links 130a and 130b with respect to the first hinge axis a1 decreases, and the door handle ( 110) is moved to the storage position inside the outer panel.

On the other hand, when the door handle device 100 operates in a pop-up mode as shown in FIG. 3 or in a storage mode as shown in FIG. 4, a two-way actuator in the process of advancing (pop-up mode) or retracting (storing mode) the rods 140a and 140b. 150 is slightly moved in the same direction as the door handle 110.

Therefore, the housing 120 accommodates and supports the two-way actuator 150, and guides the movement of the two-way actuator 150 when the rods 140a and 140b are advanced (pop-up mode) or retracted (retracted mode) ( 121) may be included.

For example, FIG. 5 is a cross-sectional view showing a structure of a bidirectional actuator accommodated in a guide unit according to an embodiment of the present invention.

Referring to FIG. 5, the guide portion 121 is fixed to the inner wall of the housing 120 in the direction in which the door handle 110 moves in a box shape and supports the bidirectional actuator 150 accommodated therein.

The guide part 121 includes a guide groove 122 into which the guide protrusion 152 formed in the bidirectional actuator 150 is inserted, and a rod slot 123a through which the rods 140a and 140b fastened to the left and right of the bidirectional actuator 150 pass. , 123b) is formed in the same direction as the moving direction of the door handle 110.

The two-way actuator 150 includes a first rotor 154a and a second rotating in a divided structure on both left and right sides inside the case 151, the guide protrusion 152, the integrated stator 153, and the integrated stator 153, respectively. It includes a rotor 154b.

The case 151 covers an internal component of the bidirectional actuator 150, and a guide protrusion 152 that is slidably inserted into the guide groove 122 of the guide portion 121 is formed on at least one of an upper surface and a lower surface.

The integrated stator 153 is formed through the first rotor 154a and the second rotor 154b and generates an electromagnetic field in the same direction according to an applied control signal.

That is, the first rotor 154a and the second rotor 154b are synchronized through the sharing of the integrated stator 153 to rotate in the same direction and at the same speed. At this time, the screw groove 155a of the first rotor 154a and the screw thread 131a of the first rod 140a fastened thereto are the screw groove 155b of the second rotor 154b and the second rod fastened thereto. It is characterized in that it is formed in a direction opposite to each other with the thread (131b) of (140b).

Therefore, when the first rotor 154a and the second rotor 154b rotate in the same first direction, the first rod 140a and the second rod 140b advance equally in opposite axial directions. In addition, when the first rotor 154a and the second rotor 154b rotate in the same second direction due to the opposite operation, the first rod 140a and the second rod 140b are identical in the opposite axial direction. Backward. Through this, the left and right sides of the door handle 110 may be moved to the pop-up position or the storage position in parallel through the operation structure of the two-way actuator 150.

The two-way actuator 150 may be configured as a two-way step motor for moving the first rotor 154a and the second rotor 154b forward or backward by a predetermined distance.

Meanwhile, FIG. 6 is an enlarged partial cross-sectional view of portion "A" of FIG. 2 according to an embodiment of the present invention.

Referring to FIG. 6, an operation state in which the door is opened due to the generation of an electrical signal from the piezoelectric sensor 160 when the occupant pulls the door handle 110 in the door handle pop-up state of FIG. 2 according to an embodiment of the present invention is shown. .

The door handle 110 has one side of the bracket 111 formed at both ends inserted into the inner space in a sliding structure, and is constrained to the bottom surfaces of the brackets 111a and 111b and the partition walls 113a and 113b formed in the inner space, respectively. It has a structure fastened by pull springs (114a, 114b) generating a pulling force.

At this time, when the occupant pulls the door handle 110 in the pop-up position, the handle end surface 112 of the door handle 110 descends to press the piezoelectric sensor 160, and the electrical signal generated by the pressing force is The latch is unlocked by being output through a signal line connected to the latch driving unit 171.

Thereafter, when the occupant releases the door handle 110, the end surface 112 of the handle of the door handle 110 is returned below the bottom surface of the brackets 111a and 111b by the pulling force of the pulling springs 114a and 114b. I can.

Meanwhile, a configuration of a vehicle controller for controlling the door handle device 100 according to an embodiment of the present invention will be described in detail with reference to FIG. 7 below.

7 is a block diagram schematically showing the configuration of a vehicle controller according to an embodiment of the present invention.

Referring to FIG. 7, a vehicle controller 200 according to an embodiment of the present invention includes a lidar unit 210, a vehicle state detection unit 220, a display 230, and a control unit 240.

The lidar unit 210 is a device that recognizes that a driver (person) holding a smart key approaches the vehicle, and includes an RF antenna 211 and a lidar sensor 212.

As shown in FIG. 1, the lidar unit 210 is installed on both sides of the vehicle to recognize drivers in the vicinity of both doors of the vehicle.

The RF antenna 211 communicates with the smart key 10 and an RF signal to recognize that the driver is close to the vehicle. The smart key 10 is a remote control function of at least one of RF signal and LF signal transmission/reception means for interlocking with the vehicle and door opening/closing (unlock/lock), trunk opening, window opening, panic operation, and remote start. It may include.

The lidar sensor 212 may recognize a driver (person) around the vehicle by irradiating a lidar (laser) signal and receiving a reflected signal.

In this case, the lidar sensor 212 may recognize a plurality of people, and the RF antenna 211 having received an RF signal or having a large reception strength of the RF signal in order to track the location of the driver holding the smart key 10 The driver can be estimated by targeting only people excluding objects existing in a certain area (distance) based on the direction of (eg, left/right of the vehicle).

In addition, the lidar sensor 212 may measure lidar images recognized by both left and right sides of the vehicle in the parking situation of the vehicle.

The vehicle state detection unit 220 collects vehicle state information according to the operation of various sensors, various electronic equipment, and control devices provided in the vehicle. For example, the vehicle state detection unit 220 is based on various driving information such as the starting state of the vehicle (on/off), the door opening/closing (Open/Close), the accelerator pedal operation, the deceleration pedal operation, the vehicle speed, and the transmission operation state. Vehicle condition can be detected.

The vehicle state detection unit 220 enters and deactivates the lidar sensor 212 in a sleep mode to prevent dark current when the vehicle is parked with start-off.

Thereafter, the vehicle condition detection unit 220 may wake-up the lidar sensor 212 under a condition that an RF signal of the smart key 10 held by the driver is detected through the RF antenna 211.

The display 230 is a device that displays various information according to the operation of the vehicle to the driver, and may be, for example, a display device of an audio video navigation (AVN) or a head up display (HUD).

The control unit 240 may be configured as an ECU (Electronic Control Unit) that controls the overall operation of each unit for controlling the overall operation of the retractable door handle system according to an embodiment of the present invention.

The control unit 240 includes an algorithm for controlling the operation of the retractable pop-up mode and the retractable mode of the door handle device 100 according to the driver's recognition around the vehicle through the lidar unit 210. It will be described in detail through 8. Here, the number of door handle devices 100 is assumed to be a vehicle having four doors (FL, FR, RL, RR) in general, but is not limited thereto, and the number of door handle devices 100 is changed according to the number of doors of the vehicle type. Can be.

8 is a flowchart schematically illustrating a method of controlling a retractable door handle device according to an embodiment of the present invention.

Referring to FIG. 8, the controller 240 of the vehicle controller 200 according to an embodiment of the present invention approaches the driver when an RF signal from the smart key 10 is received while the vehicle is parked in ignition off (OFF). It is determined that is detected (S101).

The controller 240 activates (Wake-up) the lidar sensor 212 according to the condition in which the RF signal of the smart key 10 is received, and tracks the driver existing in a predetermined lidar signal area around the door ( S102). At this time, the control unit 240 is in the direction of the RF antenna 211 in which the RF signal is received or the reception strength of the RF signal is high in order to track the position of the driver holding the smart key 10 (eg, left/right of the vehicle). Based on the right), the driver can be estimated by targeting only people excluding objects existing in a certain area (distance).

If the driver is not recognized within the predetermined lidar signal area around the door (S103; No), the control unit 240 maintains the storage mode of the door handle device 100 and continues to recognize the driver through the lidar sensor 212 do.

On the other hand, when the driver is recognized within the predetermined lidar signal area around the door (S103; Yes), the control unit 240 controls the door handle device 100 in a pop-up mode and switches the door to an unlocked state ( S104). At this time, the door handle device 100 moves the rods 140a and 140b on both sides by the operation of the two-way actuator 150 so that the open angle of the V-shaped hinge links 130a and 130b increases, and the door handle 110 It is moved to the pop-up position outside the door outer panel.

In general, in a conventional vehicle, when it is recognized that the smart key is approaching a short distance, it enters the Welcome Mode and opens the folded side mirror or turns on the emergency lamp to indicate to the driver that the door is waiting for unlock. After that, when the driver detects the touch of the door handle sensor, the door is controlled to unlock.

In contrast, the door handle device 100 according to an embodiment of the present invention opens the door in a pop-up mode according to the condition of detecting the smart key 10 and the driver recognition using the lidar sensor 212. It has the characteristic of converting the locked state of the door to the unlocked state while controlling. That is, the pop-up of the door handle 110 means that the door is unlocked in an unlocked state. Accordingly, the process of controlling the door to unlock through the touch of the door handle sensor by the conventional driver can be omitted, and accordingly, there is an effect of reducing the cost of deleting the touch sensor of the handle.

In general, in a conventional vehicle, if the touch of the door handle sensor is not detected within a predetermined time at the time of entering the welcome mode, the welcome mode is released and the side mirror is folded again.

In contrast, the controller 240 is the driver being tracked through the lidar sensor 212 even if the door is not opened due to the pulling of the driver's door handle 110 while the door handle 110 is popped up. When is in effect, the door is kept in the unlocked state. That is, unlike the conventional welcome mode being released after a predetermined time, in a situation in which the driver is detected through the lidar sensor 212, the pop-up mode and the unlocked state of the door handle 110 of the door may be maintained.

On the other hand, when the driver pulls the pop-up door handle 110, an electrical signal from the piezoelectric sensor 160 is generated by the pulling force, and the door latch 170 is operated as open. When the driver closes the door after boarding, the door The latch 170 is operated by closing.

At this time, the control unit 240 checks the open and close signals of the door through the vehicle condition detection unit 220, and then the vehicle is turned on to start a series of doors to start driving at a certain vehicle speed. When the handle storage condition is satisfied (S105; YES), the door handle apparatus 100 is controlled in the storage mode to switch the door to a locked state (S106). At this time, in the door handle device 100, the rods 140a and 140b on both sides are reversed by the operation of the two-way actuator 150, so that the open angle of the V-shaped hinge links 130a and 130b decreases, and the door handle 110 is It is moved to the storage position inside the outer panel.

On the other hand, the control unit 240 detects the parking situation in which a shift of the reverse end (R-speed) below a certain vehicle speed is input through the vehicle state detection unit 220 while the vehicle is running, and the left and right sides of the vehicle through the lidar sensor 212 The around view image according to the recognition of the object (object) of may be displayed through the display 230 (S107).

Thereafter, when the vehicle is turned off, the control unit 240 controls the door handle device 100 in a pop-up mode to switch the door to an unlocked state (S108).

The controller 240 tracks the driver through the lidar sensor 212 under the condition that the RF signal of the smart key 10 is received from the outside of the vehicle as above as the driver's getting off road (S109), and the driver within the lidar signal area When is recognized (S110; Yes), the pop-up mode of the door handle device 100 is maintained.

On the other hand, if the driver is not recognized within the lidar signal area (S110; No), the control unit 240 may control the door handle device 100 to the storage mode to switch the door to a locked state (S111). ). At this time, if the RF signal is not received from the driver's smart key 10, the controller 240 switches the lidar sensor 212 to the parking mode after entering the sleep mode.

In the above description of FIG. 8, although the controller 240 has been described as a subject, the present disclosure is not limited thereto, and the vehicle controller 200 including the controller 240 may be described as the subject.

As described above, according to an embodiment of the present invention, by providing a door handle device having a structure that can horizontally pop up a retractable door handle through one bidirectional actuator and V-shaped hinge links provided on both left and right sides thereof, the outer panel There is an effect that can reduce the complexity of components.

In addition, by performing pop-up and door unlocking of the retractable door handle at the same time through the driver's recognition through the lidar sensor under the condition that the smart key is detected through the RF antenna, the touch sensor for door lock/unlock is omitted and the user's convenience. There is an effect that can improve.

In addition, the lidar sensor applied to the retractable door handle system provides an around view function according to the side detection of the vehicle when parking, thereby improving the convenience of parking for customers.

The embodiments of the present invention are not implemented only through the apparatus and/or method described above, but may be implemented through a program for realizing a function corresponding to the configuration of the embodiment of the present invention, a recording medium in which the program is recorded. Also, such implementation can be easily implemented by an expert in the technical field to which the present invention belongs from the description of the above-described embodiment.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements by those skilled in the art using the basic concept of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

100: door handle device 110: door handle
111: bracket 112: handle end
113: bulkhead 114: pull spring
120: housing 121: guide portion
122: guide groove 123: rod slot
130: V-shaped hinge link 140: rod
150: actuator 151: case
152: guide protrusion 153: integrated stator
154: rotor 155: screw groove
160: piezoelectric sensor 170: door latch
171: latch driving unit 200: vehicle controller
210: lidar unit 211: RF antenna
212: lidar sensor 220: vehicle condition detection unit
230: display 240: control unit

Claims (20)

A door handle mounted to be movable outside and inside the outer panel of the vehicle door;
A housing installed inside the outer panel to accommodate the door handle;
V-shaped hinge links each fixed to the inner surface of the housing in an inward direction parallel to the brackets formed on the left and right sides of the door handle; And
With the driving force of the motor according to the control signal applied from the vehicle controller, the V-shaped hinge links fixed on the left and right sides and the V-shaped hinge links in which the hinges are widened or reduced by advancing or retreating the rods in both directions connected by a hinge coupling structure. A two-way actuator for moving the door handle to a pop-up position outside the outer panel or to a storage position inside the outer panel;
Retractable door handle device comprising a. The method of claim 1,
The V-shaped hinge link includes two links of the same length each having a hinge hole formed at the front end and the end,
Two front end hinge holes located on one side are hinged with the first hinge shaft provided on the rod, and one link end hinge hole located on the other side is hinged to the second hinge shaft provided on the bracket, and the other link end The secondary hinge hole is a retractable door handle device that is hingedly coupled to a third hinge shaft provided on an inner surface of the housing. The method of claim 1,
The bidirectional actuator is
A first rotor and a second rotor respectively rotated in a divided structure on both left and right sides in the case; And
An integrated stator formed through the first and second rotors and generating an electromagnetic field in the same direction according to the control signal;
Retractable door handle device comprising a. The method of claim 3,
The first and second rotors
A retractable door handle device that is synchronized through the sharing of the integrated stator and rotates in the same direction and at the same speed. The method of claim 4,
A retractable door handle device in which the screw groove of the first rotor and the screw thread of the first rod fastened thereto are formed in opposite directions to the screw groove of the second rotor and the thread of the second rod fastened thereto. The method of claim 3,
The bidirectional actuator is
A retractable door handle device comprising a two-way step motor that advances or reverses the first and second rotors by a certain distance. The method of claim 1,
The door handle
A retractable door handle device having a "C" shape or a "C" shape that can be held by hand at the pop-up position and the brackets formed at both ends. The method of claim 7,
The door handle
Retractable to open the door latch by an electric signal generated by pressing the piezoelectric sensor by the pulling force when the door is opened with the handle end bent in the same plane as the bracket formed at the pop-up position Door handle device. The method of claim 1,
The housing is
Retractable door handle device comprising a guide portion for receiving and supporting the two-way actuator, and guiding the movement of the two-way actuator when the rod is advanced or retracted. The method of claim 9,
The guide part
The guide groove, which is fixed to the inner wall of the housing in the form of a box, and into which the guide protrusion formed in the case of the bidirectional actuator is inserted, and the rod slot through which the rod fastened to the left and right of the bidirectional actuator penetrates, is the same as the moving direction of the door handle. Formed retractable door handle device. A door handle mounted to be movable outside and inside the outer panel of a vehicle door, a housing installed inside the outer panel to receive the door handle, and an inner surface of the housing in an inward direction parallel to the brackets formed on the left and right sides of the door handle The V-shaped hinge links fixed to each of the V-shaped hinge links and the driving force according to the control signal applied from the vehicle controller advances or retreats the V-shaped hinge links fixed to both the left and right sides and the two-way rods connected by the hinged structure, respectively, so that the hinges widen or decrease. A door handle device including a two-way actuator for moving the door handle to a pop-up position outside the outer panel or to an inner storage position through the V-shaped hinge link; And
A vehicle controller that recognizes a driver who approaches the vehicle through the lidar unit and controls the operation of the door handle devices respectively installed on the doors of the vehicle;
Retractable door handle system comprising a. The method of claim 11,
The vehicle controller
A lidar unit installed on both left and right sides of the vehicle to recognize a driver's approach;
A vehicle state detection unit for collecting vehicle state information according to the operation of various sensors and controllers of the vehicle; And
A controller configured to control an operation of a pop-up mode and a storage mode of the door handle device by applying a control signal according to whether the driver is recognized through the lidar unit;
Retractable door handle system comprising a. The method of claim 12,
The lidar part
An RF antenna that receives a smart key and an RF signal to recognize that a driver approaches the vehicle; And
A lidar sensor for recognizing a driver existing in a predetermined lidar signal area around the door by examining the lidar signal;
Retractable door handle system comprising a. The method of claim 13,
The vehicle state detection unit
A retractable door handle system for deactivating the lidar sensor by entering the sleep mode while the vehicle is parked, and activating the lidar sensor under the condition that an RF signal from a smart key is received through the RF antenna . The method of claim 14,
The control unit
A retractable door handle system for controlling the door handle device to a pop-up mode and converting the door to an unlocked state when a driver is recognized within a predetermined lidar signal area around the door while the vehicle is parked. The method of claim 15,
The control unit
When a series of door handle storage conditions for starting driving at a certain vehicle speed are satisfied after the vehicle is turned on after confirming the open and closed signals of the door through the vehicle condition detector, the door handle A retractable door handle system that controls the device in a retracted mode and switches the door to a locked state. A door handle in which a vehicle controller is mounted to be movable outside and inside an outer panel of a vehicle door, a housing installed inside the outer panel to receive the door handle, and an inner direction parallel to the brackets formed on both left and right sides of the door handle The V-shaped hinge link fixed on the inner surface of the housing of the V-shaped hinge link, respectively, and the V-shaped hinge link fixed on the left and right sides by the motor driving force of the two-way actuator and the V-shaped hinge link, respectively, advance or retreat the two-way rods connected by a hinged structure, so that the hinge opens or decreases. In the method of controlling a retractable door handle device for controlling the door handle in a pop-up mode or a storage mode through a shaped hinge link,
a) activating the lidar sensor under the condition of receiving the RF signal of the smart key while the vehicle is parked;
b) tracking a driver through the lidar sensor to determine whether it exists within a predetermined lidar signal area around the door;
c) when the presence of the driver is recognized, controlling the door handle device to a pop-up mode and switching the door to an unlocked state; And
d) controlling the door handle device to a storage mode and switching the door to a locked state when the vehicle meets the driving condition of a predetermined vehicle speed after checking the open and closed signals of the door;
Retractable door handle device control method comprising a. The method of claim 17,
The step c),
A method for controlling a retractable door handle device that maintains a pop-up mode and an unlocked state of the door handle when the driver tracking through the lidar sensor is in a valid state within the lidar signal area while the door handle is popped up . The method of claim 17,
Step d),
And operating the door latch to open by generating an electrical signal from the piezoelectric sensor by the pulling force of the door handle. The method of claim 17,
After step d) above,
Retractable door further comprising the step of recognizing a parking situation in which a reverse shift of a certain vehicle speed or less is input while driving, and displaying on a display an around view image according to object recognition on both left and right sides of the vehicle through the lidar sensor Handle device control method.

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